CN2050216U - Electromagnet device - Google Patents
Electromagnet device Download PDFInfo
- Publication number
- CN2050216U CN2050216U CN89206901U CN89206901U CN2050216U CN 2050216 U CN2050216 U CN 2050216U CN 89206901 U CN89206901 U CN 89206901U CN 89206901 U CN89206901 U CN 89206901U CN 2050216 U CN2050216 U CN 2050216U
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- CN
- China
- Prior art keywords
- connecting elements
- movable core
- mentioned
- elastic component
- electromagnet
- 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 - Lifetime
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
- H01F7/08—Electromagnets; Actuators including electromagnets with armatures
- H01F7/088—Electromagnets; Actuators including electromagnets with armatures provided with means for absorbing shocks
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electromagnets (AREA)
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
Abstract
The utility model discloses an electromagnet device which is provided with a coupling mechanism and an elastic component. A movable iron core and a connecting component are interconnected by the coupling mechanism, and a certain degree of relative movement between the movable iron core and the connecting component is permitted; the elastic component makes the connecting component elastically kept at the position of one end of a relative moving scope opposite to the movable iron core, and depending on the elastic deformation of the elastic component, the elastic component cooperates with the initial action that the movable iron core moves towards the direction of a coil. When an electromagnet coil is energized, normally, only the movable iron core moves for a certain distance resisting the elastic force of the elastic component; in the moving period, an inertial force is generated by the movable iron core, and the connecting component can be moved depending on the inertial force.
Description
The application relates to electromagnet apparatus, and this device is provided with elastic component relying between the movable core and connected connecting elements that moves towards this coil to electromagnet coil power, is used for absorbing the initial actuating that above-mentioned movable core moves towards coil direction.
As everyone knows, the calutron that has earlier such as Fig. 9 and shown in Figure 10, it has electromagnet coil 1, rely on to 1 energising of this electromagnet coil and left moves in the figure movable core 2 and connecting elements 4, this connecting elements 4 is arranged between above-mentioned movable core 2 and the load device 3, and with the mobile interlock that carries out of above-mentioned movable core 2, to drive above-mentioned load device 3 actions.Connecting elements 4 is that fulcrum rotates with axle 5, and the front end of its end and movable core 2 is chimeric, relies on spring 6 to trend towards along counterclockwise rotating among the figure.Connecting elements 4 keeps in the drawings the extreme position of rotation counterclockwise by contacting with limiter 7, with this movable core 2 is remained on from the position that electromagnet coil 1 is given prominence to.Load device 3 has gear wheel in large diameter (cam wheel) 10, control lever 13 and spring 14, gear wheel in large diameter 10 is provided with two toothless portion)s 8 and 9 on circumference, toothless portion) 8 and 9 is on the position that approximately differs 180 ° mutually, the chimeric protruded stigma 12 of control lever 13 1 ends and cam 11 tablings of gear wheel in large diameter 10 1 sides, spring 14 trends towards along counterclockwise rotating among the figure gear wheel in large diameter 10 by this control lever 13.
In addition, not under the state (state of Fig. 9) of electromagnet coil 1 energising, the chimeric protruded stigma 15 of the other end of connecting elements 4 and gear wheel in large diameter 10 differ 16 among about 180 ° locking protruded stigma 16 and the 16a and contact in two positions that along the circumferential direction are provided with, stop gear wheel in large diameter 10 to counterclockwise rotating with this, the minor diameter driven wheel 17 that utilizes toothless portion) 8 subtends always to rotate at ordinary times makes this driven wheel 17 not mesh mutually with gear wheel in large diameter 10.
If from state moment of Fig. 9 to electromagnet coil 1 energising, movable core 2 just in figure left move, meanwhile, elastic force clockwise direction in figure that connecting elements 4 is just revolted spring 6 rotates, so, chimeric protruded stigma 15 separates with the locking protruded stigma 16 of gear wheel in large diameter 10, thereby allows that gear wheel in large diameter 10 is to counterclockwise rotating.Therefore, gear wheel in large diameter 10 just relies on the elastic force of spring 14, turns to and driven wheel 17 position engaged to counter clockwise direction by control lever 13, becomes the state of Figure 10.Under this state, rely on the engagement of gear wheel in large diameter 10 and driven wheel 17, under the effect of the driving revolving force of this driven wheel 17.Make gear wheel in large diameter 10 along counterclockwise rotating among the figure.And, after gear wheel in large diameter 10 has rotated 180 ° in the counterclockwise direction from initial position, during its another toothless portion) 9 subtend driven wheels 17, just remove the engagement of gear wheel in large diameter 10 and driven wheel 17, meanwhile, the chimeric protruded stigma 15 of connecting elements 4 contacts with another locking protruded stigma 16a of gear wheel in large diameter 10, thereby the same with the state of Fig. 9, stops gear wheel in large diameter 10 to counterclockwise rotating.
In this electromagnet apparatus that formerly has, owing to have play on the moving direction that is connected movable core 2 of movable core 2 and connecting elements 4, so, when vibration puts on electromagnet apparatus, movable core 2 or connecting elements 4 just cause resonance in its junction, thereby become the reason that produces noise.In addition, when the junction of movable core 2 and connecting elements 4 is to move about when contacting, movable core 2 just can be parked in position arbitrarily in the scope of contact of moving about, therefore, when the nose circle handle 18 of movable core 2 was in the position of separating with the other end 19 of connecting elements 4, after electromagnet coil 1 energising, movable core 2 was during moving that segment distance of separating with the other end 19 of connecting elements 4, produce inertia force, this inertia force can make connecting elements 4 be moved; If switch on to electromagnet coil 1 at the nose circle handle 18 of movable core 2 and the other end 19 contacted positions of connecting elements 4, just can not obtain inertia force, like this, the active force that connecting elements 4 is moved is just not enough, therefore, for the active force that obtains connecting elements 4 is moved, just must improve the energising voltage of electromagnet coil 1.
In view of the foregoing, the object of the present invention is to provide a kind of electromagnet apparatus, can prevent the noise that produces by the vibration of movable core and connecting elements, and can under the energising voltage that makes electromagnet coil is the situation of low-voltage, obtain stable work.
Electromagnet apparatus has electromagnet coil, movable core and connecting elements, movable core relies on and moves towards solenoid to this electromagnet coil power, connecting elements is arranged between movable core and the load device, and, drive above-mentioned load device action with this with the mobile interlock that carries out of above-mentioned movable core.Feature of the present invention is, in order to achieve the above object, in this electromagnet apparatus, be provided with coupling mechanism and elastic component, coupling mechanism is connected with each other above-mentioned movable core and above-mentioned connecting elements, and allow that the two has a certain amount of relatively moving, but elastic component flexibly remains on the end position of above-mentioned relatively movable core relative shifting range above-mentioned connecting elements, and relies on strain to absorb the initial actuating that above-mentioned movable core moves towards coil direction.
In addition, also above-mentioned connecting elements can be made with synthetic resin, and be made above-mentioned elastic component and above-mentioned connecting elements form one.
When electromagnet coil power, usually have only the elastic force of movable core resistance elastic component to move a certain distance, movable core produces inertia force during moving, rely on this inertia force that connecting elements is moved, so, even the energising voltage of electromagnet coil is lower, action also is stable.In addition, utilize elastic component can absorb the shaking of coupling part of movable core and connecting elements, therefore, can be owing to vibration produces noise.
Fig. 1～Fig. 6 is the application's a embodiment, Fig. 1 is the plane graph of tape recorder with electromagnet apparatus of the application, Fig. 2 is its bottom view, Fig. 3 is the oblique view of its decomposing state, Fig. 4 is the application's electromagnet apparatus part cuts a part under non-action status a plane graph, Fig. 5 is its plane graph that cuts a part under operate condition, Fig. 6 is the oblique view that its connecting elements partly omits a part, Fig. 7 is the application's other embodiment and the same state diagram of Fig. 4, Fig. 8 is and the figure of Fig. 6 with state, Fig. 9 is the electromagnet apparatus that has earlier and Fig. 4 figure with state, and Figure 10 is and the figure of Fig. 5 with state.
Below, the application's embodiment is described with reference to Fig. 1～Fig. 8.In this application, with above-mentioned Fig. 9 and the identical part of the electromagnet apparatus that has earlier shown in Figure 10, be marked with identical symbol among the figure.Fig. 1～Fig. 6 is the application's a embodiment, Fig. 1 is the plane graph with tape recorder of the application's electromagnet apparatus, Fig. 2 is the bottom view of this tape recorder, Fig. 3 is the oblique view of its decomposing state, Fig. 4 is electromagnet apparatus part of the present invention cuts a part under non-action status a plane graph, Fig. 5 is electromagnet apparatus part of the present invention cuts a part under operate condition a plane graph, and Fig. 6 is the oblique view that the connecting elements of electromagnet apparatus of the present invention omits a part.In Fig. 1～Fig. 3, the 20th, base plate, tape feed roller support plate 21 utilize Screw 84 be installed in base plate 20 below.The application's electromagnet apparatus is installed in the left and right sides of this tape feed roller support plate 21, and two electromagnet apparatus of this of the left and right sides have identical structure.As Fig. 4～shown in Figure 6, electromagnet apparatus of the present invention and the dissimilarity that electromagnet apparatus is arranged earlier, be to be provided with coupling mechanism 22 and elastic component 23, coupling mechanism 22 is connected with each other movable core 2 and connecting elements 4, and allow that the two has a certain amount of relatively moving, but elastic component 23 flexibly remains on the end position of relative movable core 2 relative shifting range connecting elements 4, and relies on strain to absorb the initial actuating that movable core 2 moves towards coil direction.Coupling mechanism 22 has the section that forms one with an end of connecting elements 4 and is the 1st outstanding wall 24 of L word shape and forms the flat the 2nd outstanding wall 25 of one with an end of connecting elements 4.The 1st outstanding wall 24 is made of vertical wall 26 and horizontal wall 27, and vertical wall 26 integrally is projected into opposite side downwards from the about mid portion of an end of connecting elements 4, and horizontal wall 27 links into an integrated entity with the lower end of vertical wall 26, outwards stretches.One side of this horizontal wall 27 is whole outstanding be the medial surface contact of circular-arc protuberance 28 and movable core 2 circle handles 18 or separate.The 2nd outstanding wall 25 is positioned at the opposite side of connecting elements 4 one ends, outwards fuses orthogonally with the 1st vertical wall 26 of giving prominence to wall 24, and its lateral surface contacts with the front end face 2a of movable core 2.The 1st outstanding wall 24 is between the front end face 2a and circle handle 18 of movable core 2.In addition, the front end face 2a of movable core 2 and the small diameter shaft 18a of circle between the handle 18 pass the horizontal wall 27 of the 1st outstanding wall 24 and the opening portion 29 between the 2nd outstanding wall 25, and are positioned at the front of vertical wall 26 above the horizontal wall 27 of the 1st outstanding wall 24.
But, when not to electromagnet coil power, as shown in Figure 4, connecting elements 4 is under the resilient force of spring 6, trend towards among the figure counterclockwise contact, make existence interval between protuberance 28 and the circle handle 18 of horizontal wall 27 of the 1st outstanding wall 24 with limiter 7, simultaneously, the 2nd outstanding wall 25 contacts with the front end face 2a of movable core 2.So the chimeric protruded stigma 15 of the other end of connecting elements 4 contacts with the locking protruded stigma 16 of gear wheel in large diameter 10, gear wheel in large diameter 10 lockings are lived, make on the position of its toothless portion) that stops at it 8 subtend driven wheels 17 (state of Fig. 4).
If from this state to electromagnet coil power, just movable core 2 left (towards coil direction) in figure moves.At this moment, movable core 2 is absorbed towards the initial actuating of the coil direction strain by spring 23, so only spring 23 bends, and connecting elements 4 does not rotate.After this, movable core 2 further moves towards coil direction, circle handle 18 just contacts with the 1st protuberance 28 of giving prominence to the horizontal wall 27 of wall 24 of connecting elements 4, so, this connecting elements 4 is just revolted the elastic force of spring 6, with axle 5 is that fulcrum rotates along clockwise direction among the figure, and the chimeric protruded stigma 15 of its other end separates with the locking protruded stigma 16 of gear wheel in large diameter 10.So gear wheel in large diameter 10 is the same with gear wheel in large diameter 10 in the electromagnet apparatus that has earlier, along counterclockwise rotating among the figure, with driven wheel 17 engagements, gear wheel in large diameter 10 rotates under the revolving force effect of driven wheel 17.After movable core 2 beginnings were moved towards coil direction, its circle handle 18 just moved to the protuberance 28 of connecting elements 4 and contacts, and meanwhile, movable core 2 just produces inertia force, so connecting elements 4 just rotates under the effect of this inertia force.Therefore, even reduce the energising voltage of electromagnet coil 1, also can stably move.
In the above-described embodiments, elastic component 23 is to use the metal wire spring different with connecting elements 4 to constitute, but be not necessarily limited to this situation, for example, as shown in Figure 7 and Figure 8, also available elastic synthetic resin constitutes connecting elements 4, and will as the flexure strip 23 of elastic component ' with these connecting elements 4 formation one.The embodiment of other structure among Fig. 7 and Fig. 8 and effect thereof and above-mentioned Fig. 1～shown in Figure 6 is identical, so, be marked with identical symbol among the figure, its explanation is omitted.
Below, the general structure of tape recorder is described with reference to Fig. 3.
The magnetic head 33 that 180 ° of rotations take place according to the conversion of tape running direction is installed on the rotating shaft 33a by Screw 33b, 33b, and rotating shaft 33a is by supporting platform 34 to support, and can freely rotate.This support platform 34 by Screw 35,35 be installed in magnetic head mounting panel 36 rear ends above.Magnetic head 33 is connected with printed circuit board (PCB) 38 by multiple conducting wires 37, and this printed circuit board (PCB) 38 is installed in by Screw 38a on the rear end face of base plate 20 (the assembling axis of Screw 38a is the B among the figure).
Lead 37 passes in the centre bore of the rotating shaft 33a of magnetic head 33, and the maintenance tool 39 that utilization is made of foamed sheet keeps and is fixed in the centre bore of above-mentioned rotating shaft 33a.In addition, lead 37 fixing on printed circuit board (PCB) 38 is with the end of lead 37 and the embedded hole (not shown) tabling on the printed circuit board (PCB) 38, clamps and is fixed on the printed circuit board (PCB) 38 with clamp 40 then.Sliding panel 42 is installed on the rear end face of magnetic head mounting panel 36 by contact roller pressing spring 41 and Screw 43 and hollow shaft 44, can be free to slide.This sliding panel 42 is according to the conversion of tape running direction, changes the capstan contact corresponding with left and right two contact rollers of aftermentioned respectively or separates.In addition, contact roller pressing spring 41 relies on sliding panel 42, will compress with a corresponding capstan in left and right two contact rollers.Magnetic head mounting panel 36 trends towards a direction under the effect of spring 36a.Magnetic head movable plate 45 be installed in magnetic head mounting panel 36 below, can move freely, this magnetic head movable plate 45 utilizes the rotation of gear wheel in large diameter 10, magnetic head mounting panel 36 is advanced or retreats by spring 46.Magnetic head movable plate 45 and magnetic head mounting panel 36 together by a Screw 47 and hollow shaft 48 be installed in base plate 20 above, can move freely (the assembling axis of Screw 47 is the G among the figure).Chimeric pin 45a and the slotted hole 20a tabling on the base plate 20 (the chimeric axis of chimeric pin 45a is the F among the figure) below the magnetic head movable plate 45.
Contact roller installing rack 52 is installed in by spring 51 on the assembled shaft 50 of contact roller erecting bed 49 on the left side, can freely rotate.Contact roller 53 is installed on the contact roller installing rack 52, can freely rotate, this contact roller erecting bed 49 by Screw 54 be installed in base plate 20 above.
On the assembled shaft 56 of the contact roller erecting bed 55 on the right of contact roller installing rack 58 is installed in by spring 57, can freely rotate.Contact roller 59 is installed on the contact roller installing rack 58, can freely rotate.This contact roller erecting bed 55 by Screw 60 be installed in base plate 20 above.
The embedded hole 61 of base plate 20 the right and lefts and 62 and the protruded stigma 63 and 64 chimeric (the chimeric axis of the protruded stigma 63 of the contact roller erecting bed 49 on the left side is the E among the figure) of the right and left contact roller erecting bed 49 and 55 lower surfaces.Cassette stage clip 65 is installed in the middle position of base plate 20 front ends by Screw 66.Switch protection plate 67 is installed on the front end face of base plate 20 by Screw 68,68.Gear wheel in large diameter 10,10 with the state that overlaps up and down by rotating shaft be assemblied in base plate 20 below, can freely rotate.(above among a figure) gear wheel in large diameter 10 is associated with the connecting elements 4 of an electromagnet apparatus, another (below among the figure) gear wheel in large diameter 10 is associated with the connecting elements 4 of another electromagnet apparatus, support 71 and 72 be installed in base plate 20 below, can freely rotate, and about two slowly run and transmit gears 69 and 70 and be assemblied on support 71 and 72 by rotating shaft, can freely rotate.Axis hole 71a on the support 71 and 72 of the right and left and 72a respectively with contact roller erecting bed 49 of the right and left and 55 protruded stigma 63 and 64 tablings, can autorotation.Control lever 73 be installed in base plate 20 below, this control lever 73 trends towards a direction under the effect of spring 74.About two flywheels 75 and 76 be assemblied in base plate 20 below, can freely rotate.The capstan 77 and 78 that this flywheel 75 and 76 center have projection, this capstan 77 and 78 is inserted in the protruded stigma 63 and 64 centre bore 79 and 80 of the right and left contact roller erecting bed 49 and 55, can freely rotate, and reach this contact roller erecting bed 49 and 55 above, contact roller 53 with 59 respectively with these two capstans 77 with 78 the contact or separate.About non junction endless-belt 81 is enclosed within two flywheels 75 and 76 and following motor pulley 101 between.Sliding shoe 82 is installed in the front end face of base plate 20, and this sliding shoe 82 trends towards a direction under the effect of spring 83.
Be used for detecting the two ends that the recording sense switch 106 and 107 that could record is installed in switchboard 105.Between two recording sense switches 106 and 107 of switchboard 105, be respectively equipped with head position sense switch 108, F.F./rewinding sense switch 109, detect the Hall element 110, chromium dioxide tape sense switch 111 and the bonder terminal 112 that have or not tape feed roller to rotate.Be sent to bonder terminal 112 from the signal of each switch conducting structure (not shown) by switchboard 105.Switchboard 105 by Screw 113 be installed in tape feed roller support plate 21 below.
The 121st, the displacer control lever is installed in a side of base plate 20 by the collar 120 usefulness Screws 119, can freely rotate (the assembling axis of Screw 119 is the D among the figure).At ordinary times, displacer control lever 121 trends towards clockwise direction among the figure under the effect of spring 122.The grab 121a of displacer control lever 121 and not shown cassette anchor clamps are chimeric, the cassette anchor clamps are locked on the position of tape playable, if push the press section 121b of displacer control lever 121, displacer control lever 121 is just revolted the elastic force of spring 122 and is counterclockwise rotated in figure, it is chimeric to remove grab 121a and cassette anchor clamps, and these cassette anchor clamps unclamp.Rotor plate 118 and contact plate 117 relies on springs 115 to trend towards the direction that front end is unclamped mutually, and the 1st protruded stigma 118a that this locking that unclamps direction relies on rotor plate 118 is mutual chimeric and realize with the embedded hole 117a of contact plate 117.Rotor plate 118 and contact plate 117 are installed in top (the assembling axis of Screw 114 is the C among the figure) of base plate 20 by the collar 116 usefulness Screws 114.
The 2nd protruded stigma 118b and the magnetic head mounting panel 36 of rotor plate 118 are chimeric, rely on moving of this magnetic head mounting panel 36, and rotor plate 118 rotates with contact plate 117 on base plate 20.In addition, when magnetic head mounting panel 36 was positioned at the tape playback position, contact plate 117 was along with the rotation of rotor plate 118, its front end 117b and displacer control lever 121 tablings, thus forbid displacer control lever 121 rotation along clockwise direction.Therefore, when magnetic head mounting panel 36 was positioned at the tape playback position, displacer control lever 121 just forbade removing the locking to the cassette anchor clamps, thereby can prevent that misoperation from causing the damage of magnetic head 33 and tape.In addition, when pressing displacer control lever 121 again misoperation during the operation of tape playback, even displacer control lever 121 will be forbidden the rotation of rotor plate 118, this rotor plate 118 also rotates to the direction that makes spring 115 bendings, so rotor plate 118, magnetic head mounting panel 36 and other member can not be subjected to the effect of excessive power.
As mentioned above, the application's calutron is provided with coupling mechanism and elastic component, coupling mechanism is connected with each other movable core and connecting elements, and allow that the two has a certain amount of relatively moving, but elastic component flexibly remains on the end position of relatively above-mentioned movable core relative shifting range above-mentioned connecting elements, and relies on strain to absorb the initial actuating that above-mentioned movable core moves towards coil direction.
Therefore, during to electromagnet coil power, usually only have the elastic force of movable core resistance elastic component and move a certain distance, movable core produces inertia force during movement, connecting elements can rely on this inertia force to be moved, so, even reduce the energising voltage of electromagnet coil, also can stably move. In addition, elastic component can also absorb the shaking of coupling part of movable core and connecting elements, so, can not produce noise because of vibration.
In addition, if make above-mentioned connecting elements with synthetic resin, and above-mentioned elastic component and above-mentioned connecting elements formed one, then can make simple in structurely, enhance productivity.
Claims (2)
1, electromagnet apparatus has electromagnet coil, movable core and connecting elements, and movable core relies on and moves towards electromagnet coil to this electromagnet coil power; Connecting elements is arranged between movable core and the load device, and with the mobile interlock that carries out of above-mentioned movable core, drive above-mentioned load device action with this, it is characterized in that: in above-mentioned electromagnet apparatus, be provided with coupling mechanism and elastic component, coupling mechanism is connected with each other above-mentioned movable core and above-mentioned connecting elements, and allows the two that a certain amount of relatively moving arranged; But elastic component flexibly remains on the end position of above-mentioned relatively movable core relative shifting range above-mentioned connecting elements, and relies on strain to absorb the initial actuating that above-mentioned movable core moves towards coil direction.
2, the feature by the described electromagnet apparatus of claim 1 is: above-mentioned connecting elements is made with synthetic resin, and above-mentioned elastic component and above-mentioned connecting elements are formed one.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP150673/88 | 1988-11-17 | ||
| JP1988150673U JPH0517852Y2 (en) | 1988-11-17 | 1988-11-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2050216U true CN2050216U (en) | 1989-12-27 |
Family
ID=15501974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN89206901U Expired - Lifetime CN2050216U (en) | 1988-11-17 | 1989-05-10 | Electromagnet device |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JPH0517852Y2 (en) |
| CN (1) | CN2050216U (en) |
| GB (1) | GB2225169A (en) |
| MY (1) | MY105069A (en) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1158123A (en) * | 1956-10-05 | 1958-06-06 | Bull Sa Machines | Improvements in actuation devices using electromagnets |
| DE1590516B2 (en) * | 1962-10-19 | 1971-04-01 | IMPULSE ELECTROMAGNET WITH FORCE STORAGE AND DAMPING DEVICE FOR OPERATING ELECTRIC SWITCHES USING LONG-TERM FORCE IMPULSES | |
| US4072919A (en) * | 1976-11-03 | 1978-02-07 | Addmaster Corporation | Solenoid construction |
-
1988
- 1988-11-17 JP JP1988150673U patent/JPH0517852Y2/ja not_active Expired - Lifetime
-
1989
- 1989-05-10 CN CN89206901U patent/CN2050216U/en not_active Expired - Lifetime
- 1989-10-06 MY MYPI89001367A patent/MY105069A/en unknown
- 1989-10-25 GB GB8924008A patent/GB2225169A/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| GB8924008D0 (en) | 1989-12-13 |
| GB2225169A (en) | 1990-05-23 |
| JPH0517852Y2 (en) | 1993-05-13 |
| MY105069A (en) | 1994-07-30 |
| JPH0270409U (en) | 1990-05-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |