CN1136194A - Display devices - Google Patents

Abstract

The invention relates to display devices of the type that display indicia on a number of sheets sequentially one after the other. The sheets include suspension means (4) at or near their upper and lower ends and the device has a ramp (5) for receiving the sheets (3) in a stack with the indicia at one side of an end sheet visible to a viewer of the device. Means is provided for defining a closed path around a roller (8) for the suspension means (4) between opposite ends of the ramp (5), and transport means (11), in use, transports the end sheet 93) around the roller (8) such that the sheet adjacent the end sheet in said stack becomes visible to a viewer of the device. The surface of the roller (8) which, in use, contacts the sheets (3) is electrically conductive and is electrically connected to earth. This reduces build-up of static electricity between the sheets which it has been found can cause the sheets to adhere to each other and cause the device to jam.

Description

Display

The present invention relates to display, and seek to provide a kind of improved form of the display that in No. 0287268, disclosed european patent application, discloses.

Although it has been generally acknowledged that disclosed display is reliable and satisfied in No. the 0287268th, disclosed european patent application, find that after use it has shortcoming that some the present invention attempts to overcome or that will significantly reduce at least through segment length's time.

According to the present invention, a kind of display that is used for showing one by one many marks is provided, said display comprises: many films that are used to show the mark on the relative two sides of film, and every said film portion includes at its upper and lower end or near its suspender of upper and lower end (when vertical the placement time); A roller; A slope that is used to accept said suspender so that make saidly in film heap, and makes the mark on the one side of an end film can allow the observer of display see; Be used for determining device around the closed path of roller for the suspender between two opposite ends on said slope; Be used for transmitting described end film so that make the conveyer that can allow the observer of display see at the said film heap film adjacent with described end film around roller; Can allow described upward suspender rather than described suspender down leave the notching device of described path movement, with the described end film of box lunch when roller transmits, described suspender down still remains in the described closed path and therefore reaches described slope, thereby places described end film at a relative end of film heap; And, be used for control mark and take and can allow the device of time length of the position that the display observer sees; Wherein, in use conduct electricity on the surface of the described roller that contacts with described film, and be electrically connected to ground.

Have been found that, although disclosed display has the advantages that the film that prevents it blocks and guarantee the display smooth operation in No. 0287268, the european patent application of having delivered, but, owing at a time have film to drive around roller more than one, so this display still might block.Beginning thinks that the reason of this defective is that chain type is carried carriage and held up hanger bar more than one.Yet it is not the reason that causes that machine blocks that investigation discloses this, and unexpected be that mechanical defect is not the reason that causes that machine blocks in display.

On the contrary, after carrying out significant investigation, be surprised to find that the reason of taking out of around roller more than a film is at a time arranged is that adjacent film bonds mutually by static.The effective way of finding to address this problem after further experiment provides the roller with the conductive surface that is electrically connected to ground.

Below with reference to accompanying drawing in detail embodiments of the invention are described in detail, in the accompanying drawing:

Fig. 1 is the perspective illustration according to the display of the present invention in an enclosure;

Fig. 2 is the skeleton view of an embodiment of the film of pie graph 1 a display part;

Fig. 3 is the front elevation according to display of the present invention;

Fig. 4 is that Fig. 3 cuts open the sectional view of getting along the II-II line;

Fig. 5 is that Fig. 3 cuts open the sectional view of getting along the III-III line;

Fig. 6 a-c represents to can be used for the various forms on slope of the display of Fig. 1.

With reference to accompanying drawing, display has a casing or box 1, and its front (that is, towards the observer's of display one side) is formed with rectangular window 42, and preferably (but optional) is covered with rectangular window 42 by glass plate or other transparent material 2.Adorn many films 3 in the casing 1, suspender is equipped with in edge in the highest and lowest of this film, and this suspender adopts the bar 4 of rigidity haply, is preferably Metallic rod.

In example shown in Figure 2, film 3 has " two-sided " version, promptly have two demonstration sternites that have picture, notice, advertisement or other mark 38, be arranged to concern back-to-back, thereby can see corresponding picture or similar mark 38 respectively at the tow sides of two-sided film, show that sternite is provided with by a kind of like this mode: when film was vertically placed, picture on the film two sides or analog 38 were inverted relatively.Each shows that sternite all is adhered together with the film that extends along every bar 4 in its top and bottom.

In another embodiment, film 3 has two-layer flexible soft transparent material (as cellulose acetate), can be provided with two and show sternite between them.In this embodiment, preferably every film 3 is all constructed clamping structure in blocks, also seal along its two border seals that are connected with two hanger bar 4 and along a vertical edge (when said film 3 is in the observation place) wherein, there is opening at another remaining vertical edge, is used for inserting and taking out paper, plastics or other flexible demonstration sternite.Being arranged so that like this can show sternite from inserting between the two-layer transparent material of every film 3 or extracting out fast and easily, even and after long-time the use, it is minimum to wear and tear.If think to be necessary, between " opening " vertical edge of every film 3 two-layer, can be a bit of in its highest and lowest end sealing.This just makes just in time two of size show that back-to-back sternite can produce big slit between some crooked two relatively short enclosure portion putting into described vertical edge by making sternite, thereby the shorter enclosure portion of described vertical edge can prevent that sternite from laterally skidding off between film 3 two-layer.

In the relatively large parts of the present invention, the weight of bar 4 may make them break apart from film 3 behind certain hour.This situation can by with two flexibilities but non-stretchable knitmesh thing plastic adhesive tape or analog and every double-deck film 3 and corresponding two bars 4 thereof be connected with each other, and prevent or postpone long time.These adhesive tapes are positioned at or the vertical edge when approaching every film 3 and being in the observation place, and are folded between the film 3 two-layer transparent materials and paper or other show between sternite or the analog with can't see basically.When bar 4 was quite heavy, these adhesive tapes or analog reduced the pulling force on the film 3 greatly.

Film 3 and nonessential be described just now type, even might adopt any have good flexible but non-resilient basically, and can have picture 38 on its two sides and at material through still having anti-tear drawing property well after crooked many times temporarily or for good and all.Such simple " monolithic " film can be made by the material that resembles opaque japanning linen and so on.In the another kind of structure of the film 3 that does not show in the drawings, use to be easy to removably advertisement poster be pasted on the central film, and be equipped with soft advertising picture or analog on the two sides of the flexible central plate of monolithic at double sticky tape of buying on the market or analog.This adhesive tape is attached to the edge, highest and lowest of central plate and advertisement poster.

The diameter of section of every bar 4 very little (as, be about the 3mm order of magnitude) and also length greater than the length that will be attached to film 3 edges above it so that the every end that makes it surpass said edge stretches out about 25mm.If need, the stretching out the end and can also load onto the sound-shake buffering ring (not shown) of making by the rubber of synthetic plastic material of bar 4.Be stressed that the size of mentioning just now is relevant with the example of considering, in other display according to the present invention, can use some and smaller size greatly.

Every bar 4 all includes one or more spacers 22, and this spacer 22 has increased the diameter of its position of living in bar.This spacer 22 is preferably taked a bit of adhesive tape is wound in version on the bar 4.The effect of this spacer 22 is will guarantee can separate fully mutually when the end that bar is deposited in a time-out bar 4, so that any pole all can be got by the holder of a transmission carriage, detailed description is seen below.

Have been found that compartment only need be the width of adhesive tape, the distance that the compartment in the stacking on the adjacent stems corresponding position separates pole doubles the width of adhesive tape.

Film 3 is by the holder clamping that is positioned at casing or box 1, the structure of this holder be two relative two sides that are arranged at casing or box downwards and the slopes 5 that turn forward, on the slope face supporting go up hanger bar 4 stretch out end (in arbitrary preset time).Slope 5 can be made by level and smooth metal, teflon or some other synthetic plastics materials.All films 3 all perpendicular are placed, and are spaced from each other by spacer 22.At this moment, film 3 is outstanding down from holder, and piles up one by one, and the front end film 3 that the film that substantial horizontal is extended is piled has a face can allow the observer see by rectangular window 42.

The configuration on slope 5 will guarantee that upper boom 4 does not snarl mutually or overlapping relation occurs is very important.Slope 5 is to be provided with like this: the top bar of film 3 be provided with in along this slope 5 towards display rectangle window 42 before the slip that faces down.

In the design according to displays more of the present invention, angle of inclination with respect to the horizontal plane, slope 5 can be regulated.Best angle depends in each quantity of employed film 3 constantly, and is inversely proportional to (that is, the film 3 of greater number needs the slope to become less inclination angle with surface level, and vice versa) with the quantity of film.Have found that for fixing slope 5, when slope during horizontal by about 12 ° inclination angle, display is in optimal operational condition.

For the noise that makes operation keeps minimum, the upper end on slope can comprise the snubber assembly by such setting, promptly when the end of the bar 4 of a film 3 falls on the ramp, they run on the snubber assembly of eliminating the noise rather than the metal or other material of the more rigidity on slope 5 itself on.

Other various embodiment that represented the noise elimination snubber assembly among Fig. 6 a-c.Among Fig. 6 a, one on slope 5 ' contain is by means of spring 62 bolster 61 of deflection upwards.The upper surface of bolster 61 includes the resilient material 63 as rubber, enclosing foam or analog.When the end of bar 4 is fallen slope 5 ' when going up, its whereabouts is overcome spring force and the resilient material 63 and bolster 61 bufferings that move downward and absorb.

Among Fig. 6 b, " comprise pivot member 64, its upper surface has the resilient material 65 that is attached to above it on slope 5.Pivot member 64 is configured to can upwards deflect into the position shown in the accompanying drawing around 66 rotations and by means of for example leaf spring.When the end of bar is fallen slope 5 " when going up, pivot member 64 stressed moving downward, the whereabouts of buffer bar.When pivot member 64 had reached its limit of sports record, bar 4 just can slip away resilient material 65 also down to slope 5 " on.

Among Fig. 6 c, the device that is used to eliminate the noise includes a kind of parts with middle layer 69 of forming by the upper strata 67 of relative stiffness material and lower floor 68 and by resilient material.

Display equipment has for continuous repeatedly the mode device of show tags one by one.Just on the tightly adjacent coboundary of the film 3 that hangs, rotating axle 6 carries roller 8.The outside surface of roller 8 (contacting with film 3) conducts electricity.Roller 8 preferably is made of metal, but it also can be made by the nonmetallic materials such as rubber, polyurethane foam or the analog that have as the skin of sheet metal.The conductive outer surface of roller 8 is grounding to the outer box of display.

Have found that film 3 is formed by electrically insulating material (as cellulose acetate or analog),, therefore be tending towards mutual Electrostatic Absorption because static can make film electrically charged.Around the film (back will be described in more detail) and other film bonding of display running, this effect just may cause display to block to the result.

Have found that the effect that common ground connection antistatic brush addresses this problem is bad.Yet, at the conductive layer of enclosing a ground connection on the roller 8 static that reduces between the film 3 is obtained surprising effect, consequently reduced the stuck possibility of display.

From two positions that the opposite end is not far of roller 8, axle 6 is loaded with two sprocket wheel 9 (see figure 3)s, can phoresy corresponding ring-type around sprocket wheel and phoresy chain 10.These driving-chains best (but dispensable) are metal, but also can be made by the synthetic plastics material that resembles nylon and so on, so that the noise that is produced by this equipment remains on minimum value, and make other maintenance to lubricated needs and driving-chain reduce to minimum.Toothed belt can be used for replacing chain 10 (and back will mention belt straight or that tooth is arranged replace chain 22), and should understand term " chain " and should be interpreted in this manual and comprise belt straight or that tooth is arranged.Similarly, predicate " sprocket wheel " also correspondingly is construed to and is comprised " wheel tooth or straight is arranged ".

Two chains 10 have identical length, and each chain 10 all is fixed with carriage 11 rigidly on same position, and the shape of carriage 11 makes it realize the transmission engagement with the relative two ends of next root bar 4 reliably.In two carriages 11 one is equipped with 12 (as shown in Figure 4) of pin, during position that each said pin 12 is installed by switch 14 all with control lever 13 engagements that are fixed on the microswitch 14 on the display frames.As the predetermined direction that moves that can in Fig. 4 of accompanying drawing, be clear that and consider chain 10, every chain 10 all centers on the following running of taking turns: be positioned at the jockey sprocket 15 with corresponding sprocket wheel 9 near-ends, be positioned at the jockey sprocket 16 of the far-end of described sprocket wheel 9, towards the jockey sprocket 17 and the guide wheel 18 of display footing.

With reference to figure 3, the top of the rotating shaft 6 of loading roller 8 and sprocket wheel 9 links to each other with the low-power machine 21 on the side that is contained in display frames.Connection between rotating shaft 6 and the motor 21 generally is to realize by means of the sprocket wheel in the rotating shaft 6, and this chain sprocket drive one annular conveyer chain, this chain preferably (but not necessarily) usefulness are made with two chains, 10 similar materials.This chain also on the rotary output axis that is fixed to reduction gear box and transmit by jockey sprocket and sprocket wheel that motor 21 drives.Low-power machine 21 preferably is equipped with the motor of the capacitor startup of capacitor 34.Display includes automatically controlled time-delay mechanism, occupies the time length that the display observer sees through the position of window 42 its one sides of observation to control every film 3.In described example, this time-delay mechanism mainly comprises the multivibrator timing circuit 35 that contains the relay of controlling oneself.This device also comprises a variable resistor and is used for the time-delay adjusting.Because resembling the multivibrator timing circuit of circuit 35 and so on was known originally, so just do not describe circuit 35 in the accompanying drawings in detail, and for the sake of simplicity, do not express in the accompanying drawings and microswitch 14, motor 21, capacitor 34, circuit 35 and the interconnective electrical lead of variable resistor yet.

Circuit 35 is used for producing electric pulse by the interval of rule, and the duration of this electric pulse is depended on variable-resistance adjusted value, determine to disconnect or the closed circuit breaker of controlling oneself by the pulse that circuit 35 produces, and starter motor 21 runnings.Microswitch 14 is arranged in the branch road of circuit 35 in such a way, and promptly moving of its control lever 13 will make the relay of controlling oneself disconnect, so make motor 21 stop moving the commentaries on classics.After the electricity that offers motor 21 interrupted, the inertia of each motion parts was enough to make pin 12 by bar 13, simultaneously as can be seen, and just entry into service again of motor 21 after circuit 35 produces next pulse.

Add a delay switch 56 in the microswitch 14, this delay switch under normal circumstances is in the open-circuit position, and (for example surpass a schedule time keeping open-circuit condition by the normal circuit of microswitch 14, may be 5 minutes) situation under, it will come the turning circuit loop by bypass microswitch 14.

Like this, if carriage 11 stops display with control lever 13 engagements, thereby the circuit by microswitch 14 (for example disconnects, when the power supply controlled by a clock switch to display or said in other cases power supply during by the switch remote control of display itself), so, delay switch 56 is with closure, thereby make the circuit bypass that is in " open circuit " state by microswitch 14, and this just makes display restart and proceed the normal operation of back, because, after several seconds at the most, will open a way and will keep open circuit by the circuit of time delay switch 56 disconnects until display next time again, at least for example is five minutes.

Be fixed on roller pin 28, two arms 29 that aligning is arranged on the support of the display frame top of the trellis pivot pin 28 that can rotate and rotate (seeing Figure 4 and 5).Two arms 29 are supporting the rotating shaft 30 that extends in parallel with rotating shaft 6, and two guide wheel 31 axle rotations of 30 around the shaft.The diameter of each guide wheel 31 is less than half less than the length of roller 8 of roller 8 and axial length.The main body of two guide wheels 31 is preferably made by the resilient material that resembles rubber, polycarbamate or analog.Impel two guide wheels 31 and roller 8 engagements by a light relatively helical compression spring 32 (Fig. 3), this stage clip 32 interconnects with being in towards the anchor formula fixed rotating shaft 49 in display front with carriage 48.Carriage 48 can 28 rotate around the shaft, and makes rotating shaft 30 penetrate its middle perforate rotatably.Like this, move two guide wheels 31 obliquely, make them along clockwise direction shown in Figure 4 and counter clockwise direction shown in Figure 5 and along all 28 axle is mobile around the shaft towards the direction on the surface of larger-diameter roller 8 relative to light stage clip 32.

This display can be packed the film 3 of any amount into up to a maximum quantity, and in described example, this maximum quantity is about 20.The upper boom 4 of film 3 is arranged on the slope 5 by mode shown in Figure 5.This display includes magnet 70, it be arranged on the positive film lower beam 4 of film heap just below.Magnet 70 attracts the metal of bars 4, thereby is tightened up between upper boom 4 that makes that film 3 can be in slope 5 and the lower beam 4.This just can guarantee that the film of being seen by window 42 keeps straight and upright.

In case said these all set, will supply with the power connection of display.Carriage 11 moves up by means of be transmitted to axle 6 driving force from motor 21, and described carriage runs into the relative two ends of the upper boom 4 of the film 3 that is positioned at 5 bottoms, slope very soon, and reliably with this two ends engagement.

The film that transmitted 3 upwards and around roller 8 moves, and this roller 8 is with the speed rotation identical with sprocket wheel 9 and have the effective diameter identical with those sprocket wheels.Along with the film 3 that is transmitted moves, lower beam 4 is just no longer attracted by magnet 70.Two are extended in parallel to each other and are installed in its two sides with the guide plate 44 of all vertical synthetic plastic of the front and back of display or other shape.These guide plates 44 stretch in the mediad of display with the two ends engagement of bar 4 and from their adjacent chains 10 separately.The lower limb of guide plate 44 is a female shapes, and it forces any hanger bar 4 of being carried around roller 8 by carriage 11 to keep state with those carriages engagements, so it can not leave roller more or less and moves radially.

Every block-shaped definite guide plate 44 and corresponding synthetic plastic plate or other plate 45 coplines, the top of this plate 45 presents the form of upright front 46 (Figure 4 and 5), and it moves the groove of guiding into the bending that guides any bar that moves up 4 and roller 8 engagements to enter and enter to be formed between roller 8 and the plate 44 together with corresponding guide plate 44.Similarly, the upper rear portion of every block of plate 45 has a bigger slightly upstanding portion 47, bootable carriage 11 of shape and hanger bar 4.

The preceding guide rod 4 that the setting of otch is guaranteed to be connected on any film 3 can move up above two upright plates 47 at display rear portion, and with the hanger bar of identical film 3 pairing back can be on upstanding portion 47 by but continue to move around roller 48, fall into the last receiving terminal that is arranged in slope 5 splay downwards lead mouth 49.

When running into guide wheel 31, roller 8 is left in the effect that said edge can make these rollers overcome spring 32 when the edge of rigidity (bar 4 of engagement extends along this edge) that has more or less of film 3, to allow this edge continue across the upper end on slope 5 with carriage 11.The bar 4 of engagement continues to move vertically downward from jockey sprocket 16, till the carriage 11 of positive engagement reaches jockey sprocket 17 with it.In this point, the effect of gravity is added the roller 8 that rotating also at friction gearing film 3 in the same direction, makes carriage 11 and above-mentioned bar 4 throw off, and said bar 4 continues to move down.

To this moment, the bar 4 of back is just beginning to move around roller 8, and because the end of this root bar does not have to mesh and do not obtain with carriage 11 support of carriage 11, therefore, guide wheel 31 does not have significantly and moves, and bar two of the importings downwards of back are led in the mouth 49.Film 3 moves at the rear portion of film heap then, with respect in the position of before roller 8 transmits, being occupied, and lower limb reversed position on it, and its pros and cons also reverses.

This " otch " structure has guaranteed that effectively ensuing hanger bar 4 passes through backward above the upstanding portion 47 of plate 45, and move forward in the front of upstanding portion 47 guide slope 5 into lead mouthfuls 49.Can see from accompanying drawing 4 and Fig. 5, when the not shift position shown in arm 29 is in, their minimum free end be in close proximity to two boards 45 upstanding portion 47 go up the angle most, thereby the relative two ends that prevented " tail " bar 4 reliably enter the rear portion of display, have so just avoided two hanger bar 4 on the relative both sides of same film 3 all to pass the maloperation of leading mouth 49 and may causing mistakenly under situation about passing through backward on the top of two boards part 47.

Film 3 is sent to after the film heap back, and pin 12 is at once just by microswitch 14, and catch bar 13 discharges the self-holding relay of circuit 35.New then image, advertisement, notice or other mark that shows can be seen from the window the box 1 42, till when producing next pulse by circuit 35, at this moment motor 21 will be reset and shown film 3 moves on to the back of film heap, thereby expose next film 3.

When bar 4 when device back moves down in order to prevent that this hanger bar that has meshed 4 from losing and the contacting of carriage 11, and also is equipped with guide piece at the rear portion of display.In the embodiment shown in the figures, this guide piece adopts synthetic plastic band 50, and this is with 50 substantially symmetrically along the width setting of equipment, and the top with 50 is looped around on the horizontal anchor 51, with 50 be looped around bottom on the similar parallel bar 52.Yet the ring that is enclosed within on the bar 52 is not a ring of fastening, but by containing one effectively for providing flexible spiral tension spring 53 to finish with 50.Display sizes shown in the accompanying drawing is less relatively, in display similar substantially except that having sizable size, thereafter guide piece is vertically extending groove form, it is contained on the relative biside plate of this equipment inwardly towards between the two edges of the display of groove, the relative two ends of hanger bar 4 can be moved, simultaneously can not be forced to leave and carriage 11 position engaged, but may snarl, produce the consequence of malfunction with other movable parts of chain 10 or display.

As previously mentioned, can rely on gravity make bar 4 along the slope 5 fronts that are moved down into display, its condition is that said slope 5 with respect to the horizontal plane tilts rightly.Importantly, the lower end on the slope 5 of two inclinations is when two carriages 11 have only a hanger bar 4 to be picked up by chain 10 when rising.Any " bundled " of 5 upper booms 4, overlapping or similar phenomenon all might produce trouble at this place on the slope, hanger bar 4 is blocked in slope 5, so that hanger bar 40 is not got up and piece image and/or file or analog are remained unchanged in the observation place, keeps in repair up to noticing this display till the back.This danger is general especially in less machine, and in this case, very naturally, the size of hanger bar 4 diminishes pro rata, and bending will more easily be tied together or snarl like this.By be equipped with two boards 45 in corresponding one be sheet metal or other plate 54 that is provided with near (rather than absolutely accurate) copline relation, will make this danger minimum just at the beginning the time.The pitch angle of plate 54 lower limbs will be mated with the pitch angle on the slope 5 that is located at the below.As long as the lower limb of every block of plate 54 is only greatly very a little bit smaller than the diameter of every hanger bar 4 with the perpendicular separation between the corresponding slope 5, this just can prevent to be tied together or other wrapping phenomena usually.Yet this interval is can not Liu Detai little, blocks otherwise can produce friction.

A notching device can also be set by the lower end on slope 5 to be reduced in the less display of the diameter of hanger bar 4 other that still exist further and ties down or snarl phenomenon.The upright front portion 46 of the relative narrower of every block of plate 45 is all formed by step 55, and any hanger bar 4 that is in the film 3 of observation place all be positioned at symmetry identical step 55 under and near the lower limb of the plate 54 of lower edge vertical curve.In fact, this device is such, promptly needs a power that makes progress and makes the abutting end of the end of bar 4 by the step 55 and the plate 54 lower limb ends, certainly, when carriage 11 is met the end of next root hanger bar 4,, chain 10 will produce this power that makes progress along with upwards holding up carriage.

In addition, the sheet metal that symmetry is consistent or other plate 57 are installed by mode movably along the fixed head of this equipment, every block of plate 57 all has vertical flange 58 (see figure 3)s, extend above the corresponding end of its hanger bar 4 in each slope 5, especially, generally to stretch into and in its film heap of inclination, to pick up in the part path of respective brackets 11 of lowest rod 4.Yet the effect that every block of plate 57 that seam arranged all is subjected to the soft spiral tension spring 59 shown in Fig. 4 is moved to the left and enters the normal or undeflected position of having described just now, just comes on the corresponding chain 10 in its marginarium 60 on this position.Operating period, when chain 10 drives each carriage 11 when bar is picked up the district and moved upward, the part of carriage 11 can be bumped the marginarium 60 of plate 57 and entire plate is moved right, thereby the flange 58 that makes it moves to enough far away, just allows a rod end 4 and be raised the position of temporarily vacateing by the end of flange 58 with carriage 11 engagements.In case carriage 11 is contact plate marginarium 60 no longer, the position that plate 57 will not allowed any rod end 4 to rise by the flange that spring 59 turns back to it.If desired, can replace plate 57 so that hanger bar 4 is pressed to slope 5 downwards lightly with light sheet spring, by or other in these devices that use, add magnet 70 and spacer 22 can guarantee in 5 zones, slope resilient suspension bar 4 tack or other snarls phenomenon and seldom occurs really.

In described example, can adjust variable resistor and make circuit 35 be created in rule pulse at interval between about 3 seconds to about 1 minute, be appreciated that this is sufficiently long observing time of the scope that this display is used for all possible occasion.Even when display comprised the notice of the reading content that contains proper number or advertisement, the time that reaches 1 fen kind was normally enough.Film 3 can easily insert or take out from the film heap that is arranged in display, therefore can change mark 38 or their observation sequence without difficulty.When using film 3 forms that adopt double sticky tape or analog,, just can change the picture that occurs mark 38 on it from display, not taking out under the situation of film 3.

Described according to a kind of simple display of the present invention, but clearly, it all is possible carrying out many improvement that box 1 can include the device of the shown mark 38 of illumination.As needs, can also use every film 3 of control to occupy other replacement form of automatically controlled time-delay mechanism of time length that display is observed the position of the one side that can see it.For example, can use solid-state circuit or hot delay circuit with the thyristor that triggers by delay pulse.In addition, or in addition, display can include magnetic tape type or wire type playback, with the mark that can make demonstration with sound explanation, music or other suitable sound.Magnetic tape type or wire type are recorded in suitable position and can comprise that " interruption " produces part in these cases, " interruption " signal is provided with by known mode own, make the self-holding relay of its energy closed circuit 35, this circuit will produce pulse at interval not according to the rule of being determined length by variable-resistance adjusted value in the case.By means of the structure of the type of just having mentioned, just will realize, after obtaining " interruption " signal, just can immediately the next mark 38 in the series of markings be taken to its observation place by the circuit of having revised 35.Like this, the time that film 3 occupies the observation place will depend on fully that " interruptions " of magnetic tape type or wire type record produces the distance between the signal section, needn't have (and not having usually) regular perdurability.If desired, the circuit component of relay but electricity consumption " button " replacement closure is controlled oneself.Like this, as long as the speaker is by being used for closure or interrupting relay and the button of starter motor 21 just conversion picture or other mark in due course.

The improved display of having described above has the recording strip or the record steel wire of an annular, and can be by the series of the mode show tags 38 of continuous repetition.Such record silk ribbon is particularly useful as the auxiliary equipment of a display in exhibition and similar applications.In addition, tape recording or silk record are also inessential to be annular, and this display can be arranged to the series of only disposable show tags 38.Such display, and the continuous display of show tags series repeatedly, exceedingly useful as teaching equipment, and should point out emphatically, the present invention has designed the application of this display in teaching equipment emphatically.

Display of the present invention can replace microswitch 14 with photoelectric tube.One of 12 usefulness of pin are covered plate replacement, pass completely through at every turn with cover the passage that chain 10 that plate is connected moves during, this cover plate cut off between described light source and the described photoelectric tube light beam once.This display can comprise a clock switch, just work with display during guaranteeing to have only the daytime that has the possibility that can be observed this display, but also can comprise the switch of a form known, so that when mark 38 is emerging in window 42 fully, just operate this switch to disconnect motor 21.The purpose of doing like this be to guarantee when film 3 be in the transport process of the behind that is sent to the film heap from window 42 that constantly display can not turn off accidentally, in these cases, incomplete picture or analog 38 will keep and show and to be activated for 21 next times up to motor.

Claims (14)

1, a kind of display that is used for showing one by one many marks, said display comprises:

Many flexible films (3) are used on its two sides show tags being set, and every said film (3) is included in its upper and lower end or near the suspender (4) of (when vertical place time) the upper and lower end;

Roller (8);

Be used to put the slope (5) of said suspender (4), be used for making said film (3) to stack, and the observer of display can see the mark of the one side of end film;

Be used for the suspender between the two ends of said slope (5) (4) is determined device around the closed path of roller (8);

Be used for transmitting the conveyer of said end film (3) around roller (8), with so that in the said film heap film of contiguous said end film can see for the observer of display;

Be used to allow the said suspender of going up, rather than the notching device (31) that suspender moves out from said path under said, still stay in the said closed path with the said end film of box lunch (3) said down suspender when roller (8) transmits, and reach said slope (5) and said end film (3) is placed on the opposite end of film heap; With

Be used for the device that control mark occupies the time span of the position that the display observer can see;

Wherein, the surface of the said roller (8) that in use contacts with said film (3) be the conduction and be electrically connected to ground.

2, display according to claim 1, wherein said roller (8) is made of metal.

3, display according to claim 1 and 2, wherein said conveyer (11) in use mesh reliably with the last suspender (4) of said end film (3).

4, display according to claim 3, wherein said notching device (31) suspender (4) on its engagement place can rely on is moved by the described suspender (4) of going up with conveyer (11) positive engagement, and then make the said suspender (4) of going up by said engagement place, and suspender does not mesh with conveyer (11) down, can not pass through said engagement place.

5, according to claim 3 or 4 described displays, wherein said suspender (4) comprises makes the spacer device (22) that adjacent suspender is kept apart in the said film heap.

6, according to each described display in the above claim, further include away from the direction of suspender attract the suction device of the following suspender of the film that the display observer can see.

7, display according to claim 6, wherein said suction device (70) comprises one or more magnet, said suspender (4) contains magnetic material.

8, according to each described display in the above claim, further comprise elastic device, it is arranged in the part on the said slope (5) of the said suspender of accepting to stay said closed path.

9, display according to claim 8, wherein said elastic device includes resilient material.

10, according to Claim 8 or 9 described displays, wherein said elastic device includes the snubber assembly (60,63) of elastic biasing, and said snubber assembly (60,63) is flexibly moved by the suspender of being accepted from said closed path by said slope (5) (4).

11, display according to claim 10, wherein said snubber assembly (63) can rotate around pivoting point.

12, a kind of display that is used for showing one by one many marks, said display comprises:

Many flexible films (3) are used at its relative two sides show tags, and every said film (3) includes suspender (4) in (when vertical placement time) near its upper and lower end or upper and lower end;

Roller 8;

Be used to accept the slope (5) of said suspender (4), be used for making said film (3) to stack, and the observer of this display can see one the end film one side on mark;

Be used to suspender (4) between the opposite end of said slope (5) to determine path device around a sealing of roller (8);

Conveyer (11), be used for meshing reliably the last suspender (4) of said end film (3) and transmit said end film (3) around said roller (8), the observer who makes in the said film heap film adjacent with said end film become display can see;

Be used to allow the said suspender of going up, but not the notching device (31) that said suspender down moves out from said path, still stay in the said closed path with the said end film of box lunch (3) said down suspender when roller (8) transmits, and reach said slope (5) and said end film (3) is placed on the other end of film heap; With

Be used for the device that control mark occupies the time span of the position that the display observer can see;

Wherein, said suspender (4) includes the spacer device that is used at the suspender (4) of said film heap space between adjacent.

13, a kind of display that is used for showing one by one many marks, said display includes:

Many films (3) that are used at the relative two sides show tags of film, every said film (3) it upper and lower end or its near (when vertical placement time) include suspender (4);

Roller 8;

Be used to accept the slope (5) of said suspender (4), be used for making said film (3) to stack, and this display observer can see one the end film one side on mark; Be used to suspender (4) between the relative two ends, said slope (5) to determine device around the closed path of roller (8);

Conveyer (11) is used for transmitting said end film (3) around said roller (8), and it is appreciable to make in said film heap the film adjacent with said end film become the display observer;

Be used to allow the said suspender of going up, but not the notching device (31) that said suspender down moves out from said path, still stay in the said closed path with the said end film of box lunch (3) said down suspender when roller (8) transmits, and reach said slope (5) and said end film (3) is placed on the other end of film heap;

Be used for the device that control mark occupies the time span of the position that the display observer can see; With

Be used for along the suction device (70) of the following suspender of the film that attracts the display observer to see away from the direction of last suspender.

14, a kind of display that is used for showing one by one many marks, said display comprises:

Many films (3) that are used at the relative two sides show tags of film, every said film (3) it upper and lower end or its near (when vertical placement time) include suspender (4);

Roller (8);

Be used to accept the slope (5) of said suspender (4), said film (3) stacked, and this display observer can see one the end film one side on mark;

Be used to suspender (4) between the opposite end of said slope (5) to determine device around a closed path of roller (8);

Be used for transmitting around roller (8) conveyer (11) of said end film (3), the observer who makes the film that is close to said end film in said film heap become display can see;

Be used to allow the said suspender of going up, rather than the notching device (31) that suspender is shifted out from said path under said, still stay in the said closed path with the said end film of box lunch (3) said down suspender when roller (8) transmits, and reach said slope (5) and said end film (3) is placed on the other end of film heap; With

Be used for the device that control mark occupies the time span of the position that the display observer can see;

Wherein, said slope (5) comprise and are arranged in the elastic device that receives on the said suspender stay said closed path that part of.

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