CN1034286A - Timing switch - Google Patents
Timing switch Download PDFInfo
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- CN1034286A CN1034286A CN88108512A CN88108512A CN1034286A CN 1034286 A CN1034286 A CN 1034286A CN 88108512 A CN88108512 A CN 88108512A CN 88108512 A CN88108512 A CN 88108512A CN 1034286 A CN1034286 A CN 1034286A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H43/00—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed
- H01H43/10—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed with timing of actuation of contacts due to a part rotating at substantially constant speed
- H01H43/12—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed with timing of actuation of contacts due to a part rotating at substantially constant speed stopping automatically after a single cycle of operation
- H01H43/14—Time or time-programme switches providing a choice of time-intervals for executing one or more switching actions and automatically terminating their operations after the programme is completed with timing of actuation of contacts due to a part rotating at substantially constant speed stopping automatically after a single cycle of operation wherein repetition of operation necessitates resetting of time intervals
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- Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
Abstract
The present invention proposes a kind of timing switch of doing intermittent open and close action, this switch has cam and comprises with this cam and a plurality of contact panels of moving travelling contact plate, by concaveconvex shape the 1st and the 2 two cam working face inequality are set along above-mentioned camshaft line, and the relative cam of the secondary part that makes the travelling contact plate relatively moves along axis direction, the travelling contact plate just can with the driven state of the 1st working face with can change between the two with the driven state of the 2nd working face.The shape of the cam working face by changing the decision open and close time, can making the open and close of this switch, great changes have taken place operate time.
Description
The present invention relates to can be applicable to timing switch electronic food heater and washing machine etc., that do intermittent open and close action.
In high-frequency electronic food heater etc., have under thawed state, make heating action intermittently carry out or stop, the motor forward or reverse intermittently that makes current generation usefulness is arranged in washing machine again,, used timing switch in order to carry out this intermitten.In recent years, even for the amount of thawed thing or substrate changes, or other various conditions change, and also can suitably thaw or wash, and have begun to adopt a kind of intercropping device conversion, that be called change over switch can be to switching time in the one-period or forward and backward the time.
The described invention of Japan's clear 60-211724 communique of publication is one of change over switch, it is a configuration transitions contact between the 1st contact and the 2nd contact, by the crank mechanism that drives by clockwork, make the changeover contact swing, alternately contact with the 2nd contact with the 1st contact, and, turn-on time or opening time in the one-period are changed by changing the interval between changeover contact and the 1st contact and the 2nd contact.
Also have a kind of as described in the clear 60-207227 of Japanese publication number or the clear 60-205934 communique, it has fixed contact and travelling contact, make these contacts intermittently from, the cam that closes, and the operation of cam of being changed usefulness the switching time in the one-period, by making contact be resisted against the high portion or the lower curtate of operation of cam selectively, change the interval between above-mentioned each contact, thereby the switching time in the one-period is changed.
According to the described device of the clear 60-211724 communique of Japanese publication, because the mobile range that changeover contact is moved is limited, great changes have taken place so can not make the switching time.
In addition, Japan's publication clear 60-205934 number and the described device of 60-207227 communique, also be that the scope that can change the interval between fixed contact and travelling contact by the high portion or the lower curtate of selection operation cam is limited to narrow and small scope, the very big change of intercropping in the time of can not making switching.And because the conversion of switching time, the interval between contact pressure and contact can change.
The present invention makes for the problem that solves above-mentioned prior art existence, purpose is to provide a kind of timing switch, this kind switch is not by making interval variation between contact carry out the conversion of make-and-break time, an intermitten is used and another intermitten usefulness but be divided in advance with the working face of clockwork interlock and the cam that contact with travelling contact, use by selection it, make the switching time in the one-period can do very big variation, simultaneously, even the conversion switching time, also can make the interval between contact pressure or contact keep certain.
Timing switch of the present invention has the cam that is arranged at machine frame rotationally, and one the end be fixed in a plurality of contact panels of machine frame, in these a plurality of contact panels at least one constitutes its other end and makes the travelling contact plate swung with the rotation of above-mentioned cam drivenly, constitute the switch key element by this travelling contact plate and other contact panel, it is characterized in that, also possesses following working face conversion operations mechanism, that is: above-mentioned cam is, be provided with the 1st and the 2nd working face that concaveconvex shape has nothing in common with each other along axis direction is overlapping, make above-mentioned travelling contact plate the moving above-mentioned relatively cam of secondary part relatively moves at axis direction with above-mentioned cam, make this switch above-mentioned travelling contact plate can with the driven state of the 1st working face of above-mentioned cam with can change between the two with the driven state of the 2nd working face.
In case cam rotation, travelling contact plate are just swung with the working face of cam is driven, the switch key element that comprises this travelling contact plate just from, close, intermittently be switched on or switched off.If the relative cam of the secondary part of travelling contact plate is relatively moved along axis direction, then the travelling contact plate can with the driven state of the 1st working face of cam with can change between the two with the driven state of the 2nd working face.Because the 1st working face is different with the concaveconvex shape of the 2nd working face, so intermittent open and close change operate time.
Fig. 1 is the vertical view of an embodiment of the relevant timing switch of the present invention.
Fig. 2 is the partial sectional view of the speedup train in the foregoing description.
Fig. 3 is the cutaway view that comprises above-mentioned speedup train another part of clockwork.
Fig. 4 is that the partial left of the foregoing description is looked cutaway view.
Fig. 5 is the exploded perspective view of the foregoing description.
Fig. 6 is the female ┦ oil of the reversal switch mechanism chaff value in a foregoing description flesh
Fig. 7 is the top plan view of the inverse cam in the foregoing description.
Fig. 8 is the front view that concerns between the reversal switch of above-mentioned inverse cam of diagram and action thereupon.
Fig. 9 is the front view of the working face switching mechanism part in the foregoing description.
Figure 10 is diagram reversal switch mechanism part and vertical view different operate condition shown in Figure 6.
Figure 11 is the vertical view of a kind of follower lever of adopting in the reversal switch mechanism.
Figure 12 is diagram inverse cam and reversal switch and front views different operate conditions shown in Figure 8.
Figure 13 is diagram working face switching mechanism part and front view different operate condition shown in Figure 9.
Figure 14 is interrupter mechanism and the buzzer switch mechanism vertical view partly in the foregoing description.
Figure 15 is the vertical view of the another kind of operate condition of above-mentioned interrupter mechanism of diagram and buzzer switch mechanism part.
Figure 16 is the time diagram of the action of the above-mentioned reversal switch of diagram mechanism.
Figure 17 is the time diagram of the another kind action of diagram reversal switch mechanism.
Figure 18 is the circuit diagram that diagram can be applicable to one of electrical connection of the present invention example.
Figure 19 is the circuit diagram of the electrical connection example of the existing timing switch of diagram.
Among the figure, 10 ... machine frame, 36,37,38 ... a plurality of contact panels, 50 ... cam, 51,52,53,54 ... the working face of cam, 55,56 ... the switch key element, 511,521,531,541 ... the 1st working face, 512,522,532,542 ... the 2nd working face, 70 ... working face conversion operations mechanism.
Below the illustrated embodiment as the use in washing machine timing switch is described.
In Fig. 1 to Fig. 5, symbol 10 and 11 is by the mutual chimeric machine frame of forming the timing switch framework.Machine frame 11 is provided with the going barrel part 110 of accommodating as the clockwork spring 20 of drive source.Going barrel part 110 is provided with the hole of inserting clockwork spring 20 usefulness.One lateral edge portions of machine frame 10 is protruding, forms bulkhead 103.Across this bulkhead 103, dispose outside terminal for connecting.Even this is for knob side that water is used from time set is that the guidance panel side of washing machine immerses, also can utilize bulkhead 103 to stop water, protect outside terminal for connecting to avoid water damage.
The upper end of main shaft 15, setting-in master gear 16 rotatably, and setting-in friction plate 19 under the master gear 16.One side of friction plate 19 is resisted against the shoulder of main shaft 15, another side and master gear 16 crimping.Master gear 16 is provided with and hooks together with recess 160, and friction plate 19 is provided with and can hooks together with hooking together with projection 190 that recess 160 hooks together with this.Relatively rotate by master gear 16 and friction plate 19, above-mentioned hooking together with recess 160 and projection 190 hooks, master gear 16 just can rotate with friction plate 19.Also be fixed with the portion of hooking 161 that clockwork spring 20 tops are used of hooking on the master gear 16.The top of clockwork spring 20 inserts in the going barrel 110 from the above-mentioned hole of being located on the going barrel 110, and the through hole of the top part of clockwork spring 20 is hooked on above-mentioned hooking in the portion 161.Under this state, by rotating spindle 15, clockwork spring 20 just is involved in the going barrel 110, and the terminal of clockwork spring 20 is hooked near the hook portion of the machine frame 10 the above-mentioned patchhole.
One side of main shaft 15 between machine frame 10 and 11, is supporting axle 13 abreast with main shaft 15.Gear wheel in large diameter 23 by axle 13 rotatably supports, around the necked part of these gear wheel in large diameter 23 axis holes, rotatably support small diameter gear 22.Small diameter gear 22 and master gear 16 engagements.The inboard of gear wheel in large diameter 23 has ratchet 230, this ratchet-gear wheel 230 and the ratchet engagement that is overall shaped on elastic arm 220 front ends on the small diameter gear 22 with resin.Like this, between small diameter gear 22 and gear wheel in large diameter 23, make and constituted following a kind of one-way clutch mechanism 21 from folk prescription to rotatory force that transmit, promptly, when making main shaft 15 when the time set direction is rotated, the rotatory force of gear 22 can not pass to gear 23, and the power that applies when clockwork spring is when making main shaft 15 to counter-rotation, and the rotatory force of gear 22 just passes to gear 23.
One side of axle 13 between machine frame 10 and 11, is supporting other axle 14 abreast with axle 13.On the axle 14, rotatably support by small diameter gear part 241 and gear wheel in large diameter part 242 integrally formed gears 24.Above-mentioned gear wheel in large diameter 23 meshes with the small diameter gear part 241 of gear 24.Gear 24 thumb bamboo containers for fruit, dried meat, etc. originally freeze luxuriant plant chaff 42 and small diameter gear part 251 engagements of rotatably support on above-mentioned axle 13 in the gear 25 of above-mentioned gear wheel in large diameter 23 downsides.Gear 25 is by above-mentioned small diameter gear part 251 and gear wheel in large diameter part 252 whole formation.Between machine frame 10 and 11, also supporting axle 65 parallel and axle 67 with axle 13.On the axle 65, rotatably support the escape wheel 26 that is made of greater than 261 ratchet portions 262 global formations small diameter gear part 261 and diameter.The small diameter gear part 261 of escape wheel 26 and 252 engagements of the gear wheel in large diameter part of gear 25.Main rotatory force of nibbling wheel 16 passes to escape wheel 26 through speed increasing gear train 22-23-241-242-251-252-261, makes escape wheel 26 high speed rotating.On the ratchet portions 262 of escape wheel, meshing rotatably support in axle 67, and the moving plate 272(that is fixing the ticker 27 of oscillating plate 270 sees Fig. 5).Because escape wheel 26 rotates to a direction, ticker 27 is forced to do reciprocal rotation, and the rotating speed of above-mentioned speed increasing gear train and main shaft 15 is controlled to be necessarily.By said gear 24, gear 25, escape wheel 26 and ticker 27 constitute clockwork 28.
The action of explanation said mechanism part now.In case main shaft 15 is rotated along the time set direction, just hook of recess 160 is used in hooking together with projection 190 and hooking together of master gear 16 of friction plate 19, and master gear 16 rotates together, and the clockwork spring 20 that is attached thereto is reeled, the savings energy.This occasion, the ratchet of the relative gear wheel in large diameter 23 of ratchet of elastic arm 220 front ends of one-way clutch mechanism 21 slides, and does not carry out the transmission of rotatory force to clockwork 28.On the other hand, if with hand main shaft 15 is returned in the opposite direction to time set side, slide just produce between friction plate 19 and master gear 16, master gear 16 does not rotate, and has only main shaft 15 to return.
As mentioned above, in case clockwork spring 20 by accumulation of energy because this power of accumulating, master gear 16 is driven towards rotating in the opposite direction with time set side, this rotatory force is delivered to main shaft 15 by the frictional force of rubbing surface, main shaft 15 is driven and rotates.Under the situation of this rotation, the ratchet of one-way clutch 21 and ratchet 230 interlocks, small diameter gear 22 rotates with gear wheel in large diameter 23, rotatory force is passed to clockwork 28, so, by clockwork 28, towards with time set side in the opposite direction, i.e. rotation to the warp direction of clockwork spring 20 is adjusted to certain speed.The friction clutch that is made of master gear 16 and friction plate 19 returns the rotatory force that volume causes with clockwork spring 20 and exceeds, and transmits rotatory force between both sides, and transmits the rotatory force above certain limit can be when not making main shaft 15 wraparounds with hand.
On the main shaft below the master gear 16 15, fixedly mounting buzzer cam 17, simultaneously, its downside suit rotationally main cam 18.As shown in figure 14, buzzer cam 17 and main cam 18 are common center of rotation axis ground overlaid with the central axis of main shaft 15.Buzzer cam 17 has by occupying the most high portion 172 of periphery and being formed at the working face that the local lower curtate of locating 173 of peripheral part is formed, and downside has the projection 175 that protrudes along axis direction.Main cam 18 also has most high portion 182 of the periphery of occupying and the lower curtate 183 that is formed at the outer peripheral portion part, also have simultaneously along the centre bore 180 of the periphery of the tubular axis part 101 of machine frame 10, and the partial cut-out of this centre bore 180 is formed in conjunction with notch portion 181.
When buzzer cam 17 and main cam 18 are overlapping, the projection 175 of buzzer cam 17 and notch portion 181 tablings of main cam 18, these two cams 17 and 18 keep mutually, simultaneously, between above-mentioned projection 175 and notch portion 181, both sides' cam 17 and 18 is provided with the gap of circumferencial direction, so that can relatively rotate within the limits prescribed under this state.Therefore, when main shaft 15 was rotated, before projection 175 was pressed to end in conjunction with notch portion 181, cam 17 rotated earlier, and cam 18 does not rotate.Projection 175 is with after the end that combines notch portion 181 combines, and cam 17 and 18 rotates together.Again, under above-mentioned such cam 17 and 18 equitant states, each cam 17 and 18 lower curtate 173 and 183 roughly overlap.The scope that the lower curtate 173 of cam 17 is done more sharedly than the lower curtate 183 of cam 18 is wide slightly.During assembling, main cam 18 is sleeved on free to rotately the periphery of the tubular axis part 101 of machine frame 10, putting into the tubular axis part 101 of machine frame 10 with buzzer cam 17 all-in-one-piece main shafts 15, so that above-mentioned buzzer cam 17 is overlapping with main cam 18, and projection 175 and notch portion 181 tablings.
In Figure 14, by a plurality of contact panels 31,32,33,34 of rubber-like and the 35 switch key elements that constitute and cam 17 and cam 18 relative configurations.One end of each contact panel is fixed in insulating base 69 by the molded, unitary moulding, and this insulating base 69 is fixed in machine frame 10.The other end of each contact panel constitutes the switch key element of contact, separation by with cam 17,18 driven swings.
Above-mentioned the 1st switch key element and the 3rd switch key element constitute main switch 90 respectively, and as shown in figure 18, are connected on power supply 77 and current and take place with between the motor 79, and are series at the both sides of motor 79 respectively.1st, the 3rd switch key element do identical from, close action, closed simultaneously, disconnect.
Therefore, even any switch key element in the 1st switch key element or the 3rd switch key element is because of certain reason short circuit, also can control the open and close of motor 79 by another switch key element, so can prevent motor 79 uncontrolled working on, or motor is 79 overheated, produce the unfavorable condition of spark and so on.Can also prevent electric shock, breaking out of fire in addition.
In the illustrated embodiment, be connected to the both sides of motor 79 as two switch key elements of main switch, but these two switch key elements also can be connected on power supply 77 to the circuit of motor 79 1 sides, connect like this, when one of them switch key element short circuit, another switch key element can be replenished and be finished its action.Also can prevent the unfavorable condition that motor 79 does not stop or produce spark etc.
The 2nd switch key element constitutes buzzer switch 91.Buzzer 91 as shown in figure 18, relatively power supply 77 and not shown buzzer B are connected in series.Main switch 90 and buzzer switch 91 at main shaft 15 when time set direction (counter clockwise direction among Figure 14 shown in the dotted arrow) is rotated, since projection 175 with combine gapped thereby cam 17 rotations earlier between the notch portion 181, so at first contact panel 33 leaves contact panel 32, buzzer does not pipe.On the other hand, the power of accumulating because of clockwork spring 20 when main shaft 15 is when the clockwise direction shown in the solid arrow rotates in Figure 14, because cam 17 returns earlier in the scope in above-mentioned gap, so only before main switch 90 disconnects in the official hour, contact panel 33 contacts with contact panel 32, buzzer is only piped in a short period of time, the end of report washing action.One end of each contact panel 31,32,33,34,35 is protruding from insulating base 69, becomes outside terminal for connecting.
The base end part of contact panel 31 is connected the reversal switch side of introducing with the back.The front end of contact panel 32 is being fixed ticker by resin-molded moulding and is being stopped sheet 44.Contact panel 32 is in the raw the time, this contact panel 32 leaves contact panel 31, and as shown in figure 15, its ticker stops sheet 44 and is resisted against stopping on the pin 271 of stretching out from ticker 27 lower ends, the swing of ticker 27 is stopped, the drive system of timing switch is stopped.When high portion 182 face-offs of the secondary part 411 of follower lever 41 and cam 18, because contact panel 31 applies towards the active force of cam 18 radial outsides to contact panel 32, so contact panel 32 is also to equidirectional warpage with when contact panel 32 contacts.But in case above-mentioned secondary part 411 falls in the lower curtate 183 of cam 18, contact panel 31 leaves contact panel 32, and then contact panel 32 sets back because of the elasticity of itself, and its ticker stops sheet 44 and is resisted against as mentioned above and stops on the pin 271.
In Fig. 2 and Fig. 5 to Fig. 8, the downside of the gear 24 on axle 14 is supporting inverse cam 50, and the necked part of this inverse cam 50 by its axis hole hooks together and rotate with gear 24 with the necked part of said gear 24.This inverse cam 50 is multilayer cams that the working face that 4 layers of concaveconvex shape have nothing in common with each other is arranged vertically in its periphery, and the 1st working face the 51, the 2nd working face the 52, the 3rd working face the 53, the 4th working face 54 is arranged from top to bottom successively, is made by methods such as resin global formations.As shown in Figure 6, the 1st working face 51 is formed by occupying its most high portion 511 and the remaining portion 512 that supports.And the 2nd working face 52 as Figure 6 and Figure 7, is made up of with the remaining lower curtate 522 that accounts for half cycle the high portion 521 that accounts for half cycle.On two working faces 51,52, be provided with the portion that falls into 501 from high portion to lower curtate at same position.The 3rd working face 53 is the same with the 1st working face 51, has to occupy more than half high portion 531 and remaining lower curtate 532, and is arranged to and the 1st working face 51 symmetries.The 4th working face 54 is also the same with the 2nd working face 52, is provided with the high portion 541 and lower curtate 542 that account for half cycle, and is arranged to the 2nd working face 52 symmetrical.On two working faces 53,54, be provided with the portion that falls into 503 from high portion to lower curtate at same position.
Among Fig. 1, Fig. 4 and Fig. 6, on the machine frame 10,, fixing the base portion of resilient a plurality of contact panel 36,37,38 by insulating base 550.Contact panel 38 links to each other with above-mentioned contact panel 32, constitutes the fixed contact plate, and the fore-end of contact panel 38 curves the right angle, passes across the Width of contact panel 36,37, and contact 39 and 40 in the fixed-site relative with contact panel 36,37. Contact panel 36 and 37 constitutes the travelling contact plates, and its fore-end is being fixed the contact 361 and 371 that can contact with 40 with above-mentioned contact 39.As shown in figure 18, contact panel 36,37 is connected on the just commentaries on classics terminal and counter-rotating terminal of current generation with capacitor start motor 79.In the present embodiment, contact panel 36 constitutes positive turn-off with contact panel 38 and closes 55, and contact panel 37 constitutes reversal switch 56 with contact panel 38.
The secondary part 611 of follower lever 61 front ends and the 1st working face 51 of above-mentioned inverse cam 50 or the optional working face sliding contact in the 2nd working face 52.And the secondary part 621 of follower lever 62 and the 3rd working face 53 of inverse cam 50 or the optional working face sliding contact in the 4th working face 54.The working face of the counter gear 50 of each follower lever 61 and 62 secondary part 611 and 621 sliding contacts is by the back working face conversion operations mechanism of introducing to be selected, and when secondary part 611 during with working face 51 face-offs secondary part 621 must with working face 53 face-offs, and secondary part 611 during with working face 52 face-offs secondary part 621 must with working face 54 face-offs.The base portion 613,623 of each follower lever 61,62 is provided with axis hole, is sleeved on movingly on the follower lever axle 63 by this axis hole, and each follower lever 61,62 just moves with the rotation of inverse cam 50, and is that swing at the center with axle 63 respectively.On follower lever 61, in a side opposite, protrude and be provided with contact panel operation part 612 with secondary part 611, similarly, on follower lever 62, also protrude and form contact panel operation part 622.When follower lever 61,62 was done swing with inverse cam 50 is driven, each contact panel operation part 612,622 was shaken each travelling contact plate 36 and 37.When the lower curtate 512 of the secondary part 611 of follower lever 61 and inverse cam 50 or lower curtate 522 face-offs, the contact 361 of contact panel 36,38 contact with 39, and positive turn-off closes 55 closures, and during with 511,521 face-offs of high portion, 55 disconnections of positive turn-off pass.Similarly, when the lower curtate 532 of follower lever 62 and inverse cam 50 or lower curtate 542 face-offs, reversal switch 56 closures, and during with 531,541 face-offs of high portion, reversal switch 56 disconnects.And for example shown in Figure 10,11, the base portion 613,623 of each follower lever 61,62 form along with the big sweep of circular arc of cam 50 to concentric circular arc bending.In the inboard of this sweep 613,623, i.e. cam 50 sides, be respectively equipped with protrusion in conjunction with projection 614,624.
In Fig. 4, Fig. 6, Fig. 9, Figure 12, the base portion 613,623 of above-mentioned follower lever 61,62 is in keeping cover 64, and upper head plate 641 by penetrating this maintenances cover 64 and above-mentioned 63 of bottom plate 642 are being supported rotationally.The two ends up and down of axle 63 are being supported by machine frame 10,11.Keep the outer peripheral face of cover 64 to be cut a part, form follower lever window 645,, insert and be installed with the base portion 613,623 of follower lever 61,62 from this window 645.Window 645 is offered the size that becomes not hinder follower lever 61 and 62 swings.At the downside of the bottom plate 642 that keeps cover 64, above-mentioned axle 63 penetrates the circular-arc slotted hole 75 of plane fan shape cam 73.Cam 73 is outside the fan axle of suitable fan, has the columniform axle 71 that becomes one with cam 73, this bottom sky of 71 is enclosed within and protrudes and be fixed on the axle supporting part 105 on the machine frame 10, and the upper end of axle 71 penetrates the hole of machine frame 11, therefore, cam 73 can be that the center rotates with above-mentioned axle supporting part 105.From axle 71 the upper end that machine frame 11 extends, fixedly setting-in the base portion of manual action bars 74.Above-mentioned axle 71 is positioned at the inboard of the sweep 613,623 of above-mentioned follower lever 61,62.Axle 71 periphery, be provided with along axis direction and to radial direction protrude in conjunction with protruding dike 712.When actuating action bars 74, when axle 71 is rotated, protruding dike 72 just run into follower lever 61,62 in conjunction with projection 614,624, and further pushing is rotated follower lever 61,62, and is left the working face of inverse cam 50 in conjunction with projection 614,624.At this moment, follower lever 61,62 identical position when being moved to each high portion 511,521,531,541 face-offs of secondary part 611,621 and cam 50, or more lateral.If axle 71 further rotates, be separated with combining protruding dike 712 in conjunction with projection 614,624, mutually noninterfere is because the elastic force of contact panel 36,37, follower lever 61,62 does to reset rotation, and its secondary part 611,621 is resisted against on the working face of inverse cam 50.
In the front edge part of above-mentioned cam 73, be provided with above-mentioned slotted hole 75 along the circular arc that with axle supporting part 105 is the center, because above-mentioned axle 63 passes this slotted hole 75, so the slewing area of cam 73 is limited.Again, machine frame 10 sides also are provided with the projection of restriction 73 slewing areas.Around slotted hole 75, be formed with at the cam surface 72 that height is axially arranged.There are high portion 721 and lower curtate 722 in the two ends of this cam surface 72, middle this both inclined plane 723 that connect in addition.
The bottom plate 642 and above-mentioned cam surface 72 sliding contacts of above-mentioned maintenance cover 64.Between upper head plate 641 that keeps cover 64 and machine frame 11, clamping helical spring 65, because the elastic force of spring 65 makes to keep the bottom plate 642 of cover 64 to be crimped on the above-mentioned cam surface 72.If actuating aforesaid operations bar 74 makes its rotation, cam 73 unitary rotation then, the cam surface 72 of bottom plate 642 sliding contacts of maintenance cover 64 is through inclined plane 723, be converted into high portion 721 or lower curtate 722, add the cooperation of helical spring 65, keep cover 64 and be maintained at these cover 64 interior follower levers 61,62 moving up and down along axle 63.
Like this, when the bottom plate 642 that keeps cover 64 is resisted against in the high portion 721 of cam 73, follower lever 611,621 antagonism springs 65 and be in a high position, its secondary part 611,621 respectively with the 1st working face 51 and 53 face-offs of the 3rd working face of inverse cam 50.Again, when the bottom plate 642 that keeps cover 64 was resisted against on the lower curtate 722 of cam 73, the power that follower lever 61,62 applies because of spring was in low level, its secondary part 611,621 respectively with the 2nd working face 52 and 54 face-offs of the 4th working face of inverse cam 50.
In addition, make in its rotating process at actuating action bars 74, as previously mentioned, by touching in conjunction with the protruding dike 712 and low being abutted against that combines projection 614,624 of each follower lever 61,62 of axle 71, follower lever 61,62 is forced to rotate, its secondary part 611,621 is separately fled from the outside of cam 50 radial directions, thereby has prevented that the secondary part of follower lever 61,62 is hooked the step portion at cam 50 each working face 51,52,53,54 to the moving axially of cam 50 time.
In the periphery of above-mentioned maintenance cover 64, be provided with vertically in conjunction with protruding dike 646.This is embedded in conjunction with protruding dike 646 in the gathering sill of being located on the machine frame 10 108, therefore, keeps cover 64 to move along gathering sill 108, but be supported in un-rotatably axle 63 around.
The structure division that comprises aforesaid operations bar 74, cam 73, maintenance cover 64 etc. constitutes conversion operating mechanism 70, it is follower lever 61,62 that conversion operating mechanism 70 makes the secondary part that moves with inverse cam 50 of travelling contact plate 36,37, above-mentioned relatively cam 50 relatively moves at axis direction, makes this switch can be with working face of cam 50 at above-mentioned travelling contact plate 36,37 and change between moving state and can be with the other working face moving state.
In the above-described embodiments, for the working face of the inverse cam that makes the sliding contact of travelling contact plate institute is changed, adopted cam 73, but be optional, also can be without cam 73, and the secondary part of travelling contact plate is moved, the relative travelling contact plate of inverse cam is relatively moved.In addition, keep cover 64 also can omit.
Now,, the above-mentioned main shaft 15 of actuating sets the time limit, because the active force of clockwork spring 20 if rotating it, as previously mentioned, the speedup train is driven and rotates, simultaneously, because the effect of clockwork 28, main shaft 15 is driven to the direction opposite with the time limit direction initialization, rotates with certain speed.On the necked part of the gear 24 in the above-mentioned speedup train, in conjunction with the necked part of inverse cam 50, so inverse cam 50 with gear 24, rotates with fast speeds.In case and inverse cam 50 rotates, the secondary part 611 of follower lever 61,62, the working face of 612 cams that stood facing each other 50 just checker become high portion or lower curtate, when secondary part 611,621 and the face-off of high portion, switch key element 55,56 disconnects, when secondary part 611,621 and lower curtate face-off, switch key element 55,56 closures.
The secondary part 611,621 of hypothesis follower lever 61,62 and the 1st working face 51 and the 3rd working face 53 of inverse cam 50 are standing facing each other now.The major part of above-mentioned two working face 51,53 peripheries is high portions 511,531, the remaining seldom part of periphery is a lower curtate 521,532, and phase shifting 180 degree of this lower curtate 512,532, therefore, switch key element 55 is alternately carried out the open and close action with another switch key element 56 with phase difference 180 degree.Figure 16 illustrates the action of these switch key elements, and wherein (a) is the action of switch key element 55, (b) is the action of switch key element 56, (c) then illustrates the counter-rotating action of motor 79 among the Figure 18 that is caused by switch key element 55,56.Shown in the (a) and (b) among Figure 16, switch key element 55,56 is with the phase difference of 180 degree, and, disconnection alternately closed with certain cycle.And because the lower curtate 512,532 of the working face 51,53 of cam 50 is arranged to narrow scope, so the wide a of closing time of switch key element 55,56 shortens, and opening time is wide elongated.Therefore, if switch key element 55 is used in the just commentaries on classics of motor 79 among Figure 18, and switch key element 56 is used in counter-rotating, then shown in Figure 16 (c), motor 79 is after just changeing with the short period shown in the width a, stop with the long period shown in the width b,, stop with the long period shown in the width b then with after the counter-rotating of the short period shown in the width a.
Then, suppose by rotating operation bar 74, cam 73 rotated, make keep cover 64 bottom plate 642 as shown in figure 13, be resisted against on the lower curtate 722 of cam 73, make follower lever 61,62 move to the below.Above-mentioned follower lever 61,62 as shown in figure 12, its secondary part 611,621 respectively with the 2nd working face 52 of inverse cam 50 and 54 face-offs of the 4th working face.In the case, rotation along with inverse cam 50, switch key element 55,56 is also done the open and close action with some cycles, but, because above-mentioned the 2nd working face 52 and the 4th working face 54 are made of high portion of growing slightly than half cycle 521,541 and 522,542 of the lower curtates shorter slightly than half cycle, and the 2nd working face 52 and the 4th working face 54 are arranged to symmetry, so switch key element 55 is alternately done the open and close action with another switch key element 56 with phase difference 180 degree.Figure 17 illustrates the action of these switch key elements, and wherein (a) is the action of switch key element 55, (b) is the action of switch key element 56, (c) then illustrates the counter-rotating action of motor 79 among the Figure 18 that is caused by switch key element 55,56.Shown in Figure 17 (a) and (b), switch key element 55,56 is with the phase difference and the alternately open and close of some cycles of 180 degree.Have again, because the lower curtate 522,542 of the working face 52,54 of cam 50 is arranged in the scope of nearly 180 degree, so the closing time width c of switch key element 55,56 in some cycles is longer than above-mentioned width a operate time.Therefore, shown in Figure 17 (c), after the motor 79 among Figure 18 just changeed with the long period shown in the width b, stop with the short period shown in the width d,, stop with the short period shown in the width d then with after the counter-rotating of the long period shown in the width c.
As mentioned above, according to the foregoing description, because travelling contact plate institute separately is arranged to an intermitten and another intermitten usefulness in advance against the working face of inverse cam 50, and by optionally using working face, make the interior intermittent open and close of switch key element of some cycles can do conversion operate time, so the switching time in the one-period is depended on the shape of the working face of cam 50, by changing the shape of cam 50 working faces, great changes have taken place can to make the switching time.Again owing to be not to change the switching time by the interval that changes travelling contact plate and fixed contact plate, so even the change switching time, it is certain that contact pressure and contact separation also can keep.
Again, Figure 19 makes the open and close of reversal switch in some cycles make an example of the prior art of conversion usefulness operate time, it adopts closing time two the switch key elements 930,940 different with opening time in some cycles, by selecting some in this switch key element 930,940, make the switching of reversal switch do conversion operate time with the outside actuating switch 920 of selecting.Among the figure, symbol 77 is power supplys, the 79th, and motor, the 900th, interrupter, the 910th, buzzer switch.
According to the example of above-mentioned prior art, the switch key element of two groups of counter-rotating usefulness must be set, the outside of selecting two groups of switch key elements to use must be set simultaneously select the actuating switch.In contrast to this, according to the abovementioned embodiments of the present invention, because being relatively moved with switch key element and inverse cam, one group of counter-rotating changes switching operate time, so counter-rotating is just much of that with one of switch key element, also there is no need to be provided with the outside switch of selecting actuating to use, so also have the effect that to simplify distribution.
The present invention except the flow of water reverses of thaw timer or the washing machine that can be used as high-frequency electronic food heater with the timer, can also be widely used in periodically carrying out the various devices of open and close action. And, according to the needs of purposes, forward is moved hocket with the counter-rotating action, even it is also harmless with the occasion that the disconnection action hockets to be used in closed action.
According to the present invention, by the travelling contact plate against the working face of inverse cam separately be arranged in advance an intermitten with and other intermitten usefulness, and to choice for use, the intermittence of the switch key element in the some cycles is opened, close and do conversion actuation time, so opening in the one-period, and the time is determined by the shape of inverse cam working face, by changing the shape of inverse cam working face, can make out, there is big variation the pass time, because it is not to change out by the interval that changes travelling contact plate and fixed contact plate, the pass time, so even conversion is opened, the pass time, it is certain that contact pressure and contact separation also can keep. In addition, the switch of counter-rotating usefulness to have one just enough, the outside switch of selecting actuating to use also need not be set, so have the effect of simplifying distribution.
Claims (1)
1, a kind of timing switch, has the cam of being located at machine frame rotationally, and one end be fixed in a plurality of contact panels of machine frame, the relative configuration of working face of at least one of these a plurality of contact panels and above-mentioned cam, its other end is swung with the rotation of above-mentioned cam drivenly, constitute the travelling contact plate, by other contact panel in this travelling contact plate and the above-mentioned a plurality of contact panel constitute its other end intermittently from, the switch key element of closing, it is characterized in that, also possesses following working face conversion operations mechanism, being above-mentioned cam is provided with the 1st and the 2nd working face that concaveconvex shape has nothing in common with each other along its axis direction is overlapping, make above-mentioned travelling contact plate the moving above-mentioned relatively cam of secondary part relatively moves at axis direction with above-mentioned cam, make it above-mentioned travelling contact plate can with the driven state of the 1st working face of above-mentioned cam with can change between the two with the driven state of the 2nd working face.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62308941A JPH01151124A (en) | 1987-12-07 | 1987-12-07 | Time switch |
| JP308941/87 | 1987-12-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1034286A true CN1034286A (en) | 1989-07-26 |
| CN1010147B CN1010147B (en) | 1990-10-24 |
Family
ID=17987104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN88108512A Expired CN1010147B (en) | 1987-12-07 | 1988-12-07 | Timing switch |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPH01151124A (en) |
| KR (1) | KR920002565B1 (en) |
| CN (1) | CN1010147B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015143732A1 (en) * | 2014-03-28 | 2015-10-01 | 深圳市北方电子有限公司 | Time switch of controllable time adjustment |
| US11189447B2 (en) | 2014-03-28 | 2021-11-30 | Yaowu Hua | Time switch of controllable time adjustment |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018045849A (en) * | 2016-09-14 | 2018-03-22 | 日本電産サンキョー株式会社 | Contact-type timer switch |
-
1987
- 1987-12-07 JP JP62308941A patent/JPH01151124A/en active Granted
-
1988
- 1988-12-07 KR KR1019880016261A patent/KR920002565B1/en not_active IP Right Cessation
- 1988-12-07 CN CN88108512A patent/CN1010147B/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015143732A1 (en) * | 2014-03-28 | 2015-10-01 | 深圳市北方电子有限公司 | Time switch of controllable time adjustment |
| US11189447B2 (en) | 2014-03-28 | 2021-11-30 | Yaowu Hua | Time switch of controllable time adjustment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1010147B (en) | 1990-10-24 |
| JPH0440819B2 (en) | 1992-07-06 |
| KR890010973A (en) | 1989-08-11 |
| KR920002565B1 (en) | 1992-03-27 |
| JPH01151124A (en) | 1989-06-13 |
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|---|---|---|---|
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| PB01 | Publication | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| OR01 | Other related matters | ||
| C56 | Change in the name or address of the patentee |
Owner name: NIDEC SANKYO CORP. Free format text: FORMER NAME OR ADDRESS: K.K. SANKYO SEIKI SEISAKUSHO |
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| CP03 | Change of name, title or address |
Address after: Japan's Nagano Patentee after: Sankyo Seiki Seisakusho KK Address before: Japan's Nagano Patentee before: K.K. Sankyo Seiki Seisakusho |
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| C17 | Cessation of patent right | ||
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