CN2030748U - Recorder - Google Patents

Abstract

The utility model relates to a recorder. The rotary force of a spool shaft acts on a rotary checking member in order to control the movement of the member, and a rotary drive part which is driven by a motor is avoided from engaging with the rotary checking member. When a magnetic tape arrives at a terminal, the spool shaft stops; when the rotary checking member is free from the control of the spool shaft, the rotary checking member which is engaged with the rotary drive part moves to cause the action of a rotary transmission transforming mechanism, and a rotary transmission path of the motor is transformed from one spool shaft to the other spool shaft. The utility model is characterized in that the utility model is provided with a spring member so that the rotary force of the spool shaft is replaced in company with rewinding operation, and elastic force acts on the rotary checking member in order to avoid that the rotary drive part is engaged with the rotary checking member.

Description

Recorder

The utility model is a kind of as shown in drawings blattnerphone, and its structure is unlikely complicated, can send various operations such as band, high speed are unrolled, counter-rotating fast, and can improve the reliability of the action when operating.

Possess auto-reverse mechanism, suitable usefulness is manually carried out FF(and is transmitted fast), the blattnerphone of recoiling (unrolling at a high speed) operation comes forth on the Jap.P. spy opens No. 8752, clear 60-13.The utility model the person improved, and develops a kind of mechanism and make 2 control members of FF, recoil operation usefulness stop at operating position forward, makes when arriving the tape terminal point to stop to remove, and get back to recording or tone playing state, before proposed application.

The blattnerphone of this proposition includes: magnetic head is respectively arranged with a pair of capstan, a pair of pinch roller, and a pair of spool spindle about this magnetic head: rotary transfer mechanism is used for the revolving force of motor is sent to one of them of above-mentioned left and right sides spool spindle; Main drive gear, the usual maintenance, rotate; Rotating cam has a part of engaging claw, rotates linkedly with main drive gear; Rock body when above-mentioned spool spindle is subjected to revolving force, just is subjected to the trend towards the direction that does not engage with rotating cam, when above-mentioned spool spindle stops, just engaging with rotating cam, utilizes rotating cam to move to certain direction forcibly; Transmission gear has the partly non-engagement position of hypodontia, and position and main drive gear beyond the non-engagement position intermesh; Trigger member, make transmission gear remain on the out of mesh position of main drive gear on, the trend that is kept on the rock body is removed: elastic device when the transmission gear utilization triggers member and removes above-mentioned maintenance, intermeshes transmission gear and main drive gear; Mapping device, when transmission gear and main drive gear engagement rotation, the effect that is subjected to the revolving force of transmission gear makes rotary transfer mechanism produce the conversion action; Control member is moved by manual operation; Transmission member is used for that control member is had and makes the trend that triggers member generation action and the above-mentioned maintenance of transmission gear is removed; Block mechanism makes control member have the trend of action forward when control member moves, and is returned to the origin-location when control member moves to certain position, and control member is stopped on the shift position; Remove member,, utilize block mechanism to make the releasing that stops of control member with the action interlock that triggers member and mapping device.

This blattnerphone can make simple structureization, and operating performance is improved.But control member is in when operation, because move according to sequential (timing), thus the danger that misoperation takes place is arranged, so hope can be improved.

Therefore, the purpose of this utility model provides and a kind ofly texturally is unlikely complicated and possesses the blattnerphone that is rich in reliability that above-mentioned functions is arranged, and control member can be finished the conversion action exactly according to the action of appointment in operation.

According to blattnerphone provided by the utility model, in the blattnerphone of above-mentioned structure, have spring member, when shut-down mechanism moves according to control member, make rock body have a trend forward towards the direction of not interosculating with rotating cam.

Embodiment of the present utility model is described below with reference to accompanying drawings.

Fig. 1 is the mechanism's planimetric map partly about the blattnerphone of an embodiment of the present utility model.

Among the figure 101 is substrates of blattnerphone.On this substrate 101, magnetic head 102 is installed in and can makes on the magnetic head mounting plate 103 that magnetic head freely advances and retreat, so magnetic head is free to advance and retreat.About magnetic head 102, be respectively equipped with capstan 104,204, pinch roller 105,205 and spool spindle 106,206.

Just, tape cassete 107 is contained on two spool spindles 106,206 of this blattnerphone, magnetic head mounting plate 103 is advanced, either party spool spindle when this state (106 or 206) is when batching the direction rotation of tape, pinch roller (105 or 205) with the capstan (104 or 204) of its same side press contacts mutually, utilize the rotation of capstan can record or playback.

On the top position of magnetic head 102, overlap mutually as 2 tabular control members (the 1st control member 108 and the 2nd control member 109) of bulldozing operation end with left end portion in scheming, dressing up can be towards freely advancing and retreat with the perpendicular direction of the round direction of action of magnetic head mounting plate 103.

Fig. 2 represents these control member 108,109 confined states with respect to blattnerphone substrate 101.Among the figure 110, the 111st, the pillar of the control member that on substrate 101, is provided with assembling usefulness.Pillar 110 upper ends therein are fixed with guided plate 112,101 one-tenth parallel states of this guided plate 112 and substrate.One end of guided plate 112 is bent upwards, and is provided with bullport 114 in bent part 113, is provided with the bullport 115 of bending as shown in Figure 1 at an other end, is provided with the guiding groove 116 of コ font in addition as shown in Figure 1 at sidepiece.Then, the operation of the 1st control member 108 is distolateral to be inserted in the above-mentioned bullport 114, and then by bringing in guiding on the pillar 111, its sidepiece guides and make it to be dressed up the mode that can freely advance and retreat by guiding groove 116 to its leading section.In addition, the 2nd control member 109 overlaps on the 1st control member 108, and it operates distolateral being inserted in the above-mentioned bullport 114, and its leading section is guided in the upper end of pillar 111, and its sidepiece inserts guiding groove 116 and makes it dress up the mode that can freely advance and retreat.

What overlap mutually with the above-mentioned bullport 115 of middle body as shown in Figure 3, is to be formed with the cam hole 117 bigger than bullport 115 in the 1st control member 108.Be formed with the direction transformation member pushing part 118 that is bent upwards at its leading section in addition, and the position is formed with spring seat slice 119 near its cam hole 117, is provided with outstanding push-pads 120 in addition below the position of the opposite side of the direction transformation member pushing portion 118 of its leading section.In addition, the 1st control member 108 is subjected to the recuperability effect of the extension spring 121 that hanging between the sweep 113 of spring seat slice 119 and guided plate 112, and the trend of one side towards the operating side is often arranged.In addition, the 2nd control member 109 as shown in Figure 3, be formed with the cam hole 122 that can overlap mutually with above-mentioned cam hole 117 at middle body, the position is formed with spring seat slice 123 near this cam hole 122, and is formed with direction transformation member pushing portion 124 above the leading section at it.In addition, the 2nd control member 109 is subjected to the recuperability effect of the extension spring 125 that hung between the bend 113 of spring seat slice 123 and guided plate 122, and the trend of one side towards the operating side is often arranged.

In the upper end of pillar 111, tape direction transformation member 126 is housed overlappingly on the 2nd control member 109.This tape direction transformation member 126 makes slotted hole set on the travel directions of two control members 108,109 127 and pillar 111 chimeric, and can and two control members 108,109 does round the action abreast, and can rotate as fulcrum with pillar 111.This kind tape direction transformation member 126 as shown in Figure 4, its both sides of the edge become dip plane 128,129, these dip plane 128,129 are positioned at the anterior position of all directions conversion member pushing portion 118,124 of the 1st and the 2nd above-mentioned control member 108,109.At the front end of tape direction transformation member 126, being provided with the front end position of slotted hole 127 is the arc surface 130 of the center of curvature, faces this arc surface and is equipped with in an end of the operating physical force transmission member of narrating later 131.

In addition, above-mentioned tape direction transformation member 126 has following function.Just when the masterpiece push operation of the 1st control member resistance extension spring 121, direction transformation member pushing position 118 by same control member 108, right-hand dip plane 129 is urged, rotate to left side direction as shown in Figure 5, in addition, when the masterpiece push operation of the 2nd control member resistance extension spring 125, the direction transformation member pushing portion 124 by same control member 109 is urged dip plane 128, rotates to right direction as shown in Figure 6.In addition, when the 1st and the 2nd control member 108,109 is done push operation simultaneously, as shown in Figure 7, by all directions conversion member pushing portion 118,124 dip plane 128,129 is urged simultaneously and stops its rotation.In this state, two control members 108,109 move together, come bulldozing operation power transmission member 131 by arc surface 130.

The bullport 115 of set bending on above-mentioned guided plate 112, and on the 1st, the 2nd control member 108,109 in the set cam hole 117,112, have cam roller to insert wherein as shown in Figure 3.This cam roller 132 is supported on the revolving member 133, can rotate freely.This transmission component 133 is supported by an axle that is built up on the substrate 101 with the pressure zone arm of pinch roller 105, and can freely be rotated.Revolving member 133 be provided with in the horizontal direction extend stop pawl 134, it is usual in the fin 135 that is provided with to upper process on magnetic head mounting plate 103 that this stops pawl 134, and relative from the inboard.Therefore when the state shown in Fig. 8 (a) becomes the state of (b) the same figure, in the 2nd control member 109 bulged-in operational circumstances, the cam surface 122a that cam roller 132 is pushed to cam hole 122 goes up and rotates along bullport 115, consequently because the rotation of revolving member 133 makes magnetic head mounting plate 103 retreat from recording or playback position.In addition, when the state shown in Fig. 9 (a) became state shown in (b) the same figure, in the operational circumstances that the 1st control member is urged, same retreated magnetic head mounting plate 103 because revolving member 133 rotates.Also have, when the 1st and the 2nd control member 108,109 is urged operation simultaneously, owing to will make these control members 108,109,, and its amount of movement is limited because of the relation of above-mentioned tape direction translation building block 126 ormal weight that can only advance.Therefore, the rotation of cam roller 132 also is limited in a certain ormal weight.Thereby magnetic head mounting plate 103 can not retreat.

Near tape direction translation building block 126, as shown in figure 10, be provided with block mechanism 140 and operating physical force transmission member 131.The formation of block mechanism 140 includes: be built in the stationary shaft 141 on the substrate 101; This stationary shaft 141 can freely be rotated and as the stop member 142 of fulcrum; Make this stop member 142 add the extension spring 144 of rotating force usually according to the direction shown in the arrow among the figure 143; With in push-pads 148 that to be the boundary with stationary shaft 141 extend along 142 one-tenth of substrate 101 and the stop members relation of intersecting vertically with opposition side at stop member 142.The a part of 142a of stop member 142 extends along the lateral margin of the above-mentioned the 1st and the 2nd control member 108,109 leading sections, and partly being formed with stop aperture 147 on the 142a at this, this stop aperture makes selectively that formed junction surface 145,146 stops on the leading section of the above-mentioned the 1st and the 2nd control member 108,109.As the power of the 1st control member 108 resistance extension springs 121 is moved forward, when reaching certain operating position forward, shown in Figure 11 (a), junction surface 145 stops in the stop aperture 147, and therefore the 1st control member 108 is maintained on certain operating position forward.Similarly, as the power of the 2nd control member 109 resistance extension springs 125 is moved forward, when reaching certain operating position forward, as shown in figure 10, junction surface 146 stops in the stop aperture 147, and therefore the 2nd control member 109 is maintained on certain operating position forward.The maintenance relation of this mode can optionally be carried out.Just under the maintained state of a side control member, the opposing party's control member is produced when moving forward, the opposing party's junction surface contacts with partly 142a is overlapping, and engagement member 142 is rotated towards opposition side with the direction of anti-arrow 143, and last side's halted state is removed.For this removing function can be carried out well, and the amount of movement of the front end of push-pads 148 is strengthened, then the front at junction surface 145,146 will exceed, and operates the outstanding position of the lower inclination of distolateral formation.

Above-mentioned operating physical force transmission member 131 as shown in figure 12, is supported on the axle that is built up on the substrate 101 with the pressure zone arm of above-mentioned pinch roller 205, and can freely rotates.In addition, the structure of this member 131 includes: the part 151 of the arc surface 130 of the tape direction transformation member 126 that subtend is above-mentioned; The claw-like tab 152 that contacts with each other in the inboard of the part 142a of stop member 142; Be used for bearing the pressed sheets 153 of the mountain type shape of the pushing force that is produced by the push-pads of being located on above-mentioned the 1st control member 108 120; With the push-pads 154,155 that on substrate 101, extends into two arm shapes.

The action forward of the 1st and the 2nd control member 108,109 and the relation between the rotation of operating physical force transmission member 131 will be described below.Just when carrying out the bulldozing operation of the 1st control member 108, junction surface 145 contacts with part 142a, stop member 140 is revolted the power of extension springs 144 and is rotated, and push-pads 120 pushing pressed sheets 153 make the direction shown in the arrow 156 of operating physical force transmission member 131 in Figure 12 rotate the angle of appointment then.Junction surface 145 stops in the stop aperture 147 then.Secondly operating physical force transmission member 131 is got back to original position once more.On the other hand, when carrying out the bulldozing operation of the 2nd control member 109, in this case, the action that operating physical force transmission member 131 can not rotate fully, 146 begin to contact stop member 142 from the junction surface, stop to it till the stop aperture 147 during, the power of above-mentioned stop member 142 resistance extension springs 144 and rotating.In addition, in the operation that the 1st and the 2nd control member 108,109 is urged simultaneously, in this case as mentioned above because the propelling position of specified amount is arranged, the tape direction transformation member 126 specified amount pushing part 151 of advancing.At this moment, junction surface 145,146 does not stop in the block mechanism 140.Therefore only in the operating period that two control members 108,109 are urged, operating physical force transmission member 131 just can be rotated the angle of appointment.It is designed to above-mentioned this relation.

Figure 13 represents peripheral part of tape walking direction transformation mechanism 210.

211 and 212 is pressure zone arms among the figure, has the pinch roller 105,205 of being supported and can freely being rotated by an axle on the rotation end of this pressure zone arm 211,212.In each spool spindle 106,206 bottoms, be provided with the gear 213,214 coaxial with spool spindle.On the leading section of magnetic head mounting plate 103, pinch roller converter plate 215 is supported by axle 216 and can freely be rotated, be provided with outstanding cam pin 217 on the leading section of this converter plate 215.In addition, above-mentioned axle 216 also is used for keeping here the middle body of helical spring 218.Two ends of helical spring 218 stop at converter plate 215 about end, and stop at above-mentioned left and right sides pressure zone arm 211,212 respectively each rotate on the end.

In Figure 13, the 219th, the supply side that is configured to freely to advance and retreat on left and right directions is checked the member stop board.It is microscler conjugate foramen 221 that this stop board 219 is provided with the cam hole 220 and the above-below direction shown in the same figure that can allow above-mentioned cam pin 217 insert.The exterior region of cam hole 220 from about to central authorities, and forward end tilts, and is used for the recess 222 of engagement cam pin 217 being formed with foremost of it.

223 is that capstan 204 with above-mentioned the right is the conversion rotor plate that fulcrum and being configured to can freely rotate in Figure 13, this conversion rotor plate 223 is provided with the outstanding double pointed nail 224 that can enter above-mentioned conjugate foramen 221, is provided with slotted hole 225 at the leading section of conversion rotor plate 223.

Among the figure 226, the 227th is the rotor plate that fulcrum can freely rotate with the center of above-mentioned each spool spindle 106,206, the axle of Support Gear 228,229 is arranged on these rotor plates 226,227, and these gears 228,229 and above-mentioned gear 213,214 intermesh.Two rotor plates 226,227 respectively have a bead 230,231, and are hung with an extension spring 232 between the two, utilize this extension spring 232 that two rotor plates are remained on the certain position.

Among the figure 233 expression is according to the polarity-reversing switch of tape walking direction transformation said head 102 polarity.

In addition, 234 among the figure is translating gear, is provided with the outstanding double pointed nail 235 that can enter above-mentioned conjugate foramen 225 above the translating gear 234 at this, becomes two places of symmetry not have the shape of tooth in addition, and forms non-engaging piece 236,237.In addition, below this translating gear 234, be provided with coaxial counter-rotating driven wheel 238.

Figure 14 represents from motor 239 revolving force to be sent to the rotation transfer path of above-mentioned left and right sides capstan 104,204 and above-mentioned gear 213,214.Among the figure 240 is motor pulley, the 241st, be positioned at the following of blattnerphone substrate 101 with a follow-up pulley of supporting.Gear 242 is arranged below this follow-up pulley 241, be integral with pulley 241.In addition, 243 among the figure, the 244th, the flywheel that has belt grooves on the excircle, and be fixed on respectively on the capstan 104,204, the 245th, the guide pulley of below blattnerphone substrate 101, supporting with axle.Among the figure 246,247, the 248th, integrally formed gear, the 249,250, the 251st, utilize spring and friction mechanism to connect to some coaxial gears as shown in figure 15.In addition, the revolving force of gear 249 utilizes pinion wheel 254,255 to be sent to above-mentioned gear 228,229 after being sent to gear 252,253.Among the figure 256,257,258 also is integrally formed gear in addition.

Above-mentioned motor pulley 240 and follow-up pulley 241 utilize endless 260 to be linked.In addition, motor pulley 240, about flywheel 243,244 and guide wheel 245 also be to utilize endless to be linked, wherein the flywheel about becomes the relation of reverse rotation.On the one hand, the rotation of follow-up pulley 241 is sent to spool spindle 206 by gear 246,247,250,252,229 and 214, and in addition, the rotation of gear 252 is sent to spool spindle 106 by gear 253,255,228 and 213.In addition, the rotation of follow-up pulley 241 is sent to above-mentioned counter-rotating driven wheel 238 by gear 246,248,256,257.

On the other hand, below the gear 214 of the spool spindle 206 on driving right positions, be provided with ring-type annulus 271 as shown in figure 16, have the very contact relation of weak pressure.Below this annulus 271, be provided with outstanding pin 272,273.Near this annulus 271, be provided with compression plate 274.Compression plate 274 is supported by the axle 275 that is fixed on the blattnerphone substrate 101, is configured to the mode that can freely rotate.Therefore at reel 206 in the situation of either direction rotation, it be the power of center to the right rotation that compression plate 274 is subjected to axle 275.

In addition, below said gear 234, as Figure 16 and shown in Figure 19, rotary pawl 276 is integral with it.276 pairs of turning axles of this rotary pawl become point-symmetric shape, are provided with stop segment position 277,278 in 2 places that become symmetry.In addition, below driven wheel 238, form one in counter-rotating with rotating cam 279.This rotating cam 279 has spiral helicine cam face at excircle, is stop segment portion 280 between its maximum radius and the least radius.

In addition, in Figure 16 and Figure 17,281 are arranged on the right side of above-mentioned compression plate 274, and constitute the plastic swing plate that member is checked in rotation.On this swing plate 281, be formed with the peristome 282 that can allow above-mentioned rotating cam 279 insert, be formed with junction surface 283, be formed with pushing lip portions 284 in addition in the above at the margo dexter of peristome 282.2 that are equipped with near above-mentioned translating gear 234 in addition as shown in figure 16 stop connecting rod 285,286, are assembled into mode free to rotate.One of them stops connecting rod 285 and becomes the triggering member, and any one in the stop segment portion 277,278 that stops pawl and the excircle of above-mentioned rotary pawl 276 of its front end engages (state after Figure 16 represents to remove with the engagement state of stop segment portion 278).In this state, being located in the non-engaging piece 236,237 on the translating gear 234 either party will be relative with gear 257.In addition, stopping to be provided with pressed sheets 287 and joint lip portions 288 on the connecting rod 285, pressed sheets 287 is located at the anterior position of above-mentioned pushing lip portions 284.An end that stops connecting rod 286 is facing to the excircle of the opposition side that stops the rotary pawl 276 that connecting rod 285 faced, and an other end that stops connecting rod 286 has the lip portions 289 of joint.In addition, stop to be hung with extension spring 290 between the connecting rod 285,286, utilize this spring to make two to stop connecting rod 285,286 and have the trend that contacts with rotary pawl at two.On above-mentioned operating physical force transmission member 131, as shown in figure 16, on the centre position in formed space between push-pads 154 and the push-pads 155, make above-mentioned joint lip portions 289 be disposed at this position, above-mentioned joint lip portions 288 is disposed between the front end of push-pads 154,155.In addition, between the side of the push-pads 148 of the side of swing plate 281 and block mechanism 140, as shown in figure 17, be provided with a helical spring 310, one end of this spring is facing to the side of push-pads 148, and an other end faces toward the side of swing plate 281, and the centre position of this helical spring 310 is supported by axle 311, and can freely be rotated.Just as shown in figure 18, the setting of this helical spring 310 is to revolt the power of extension spring 144 and when rotating when stop member 142 utilizes junction surface 145 or 146, push-pads 148 a pushing one distolateral rotation, another one is distolateral to be pushed swing plate 281 to the direction shown in the arrow D among Figure 18.When helical spring 310 when the direction shown in the arrow D is done pushing, swing plate 281 is a fulcrum with the rotation axis 312 of connecting rod 286, is subjected to the rotating force to right.

Below compression plate 274 will be described, swing plate 281, and stop action relationships between the connecting rod 285,286.That is, the state when stopping connecting rod 285 and engage, the situation during spool spindle 206 rotations with the stop segment portion 278 of rotary pawl 276.In spool spindle 206 rotations, annulus 271 also follows it to rotate together.In this case, any one in the pin 272,273 can push compression plate 274.Consequently compression plate 274 rotates to the right.Therefore swing plate 281 also is pressed towards the right side.So swing plate 281 shakes under the heavy Zhe contact condition of left side edge of the excircle of rotating cam 279 and peristome 282, so the joint at stop segment portion 280 and junction surface 283 is just avoided.When this state, when stopping (it is because follow overload that gear 249 idle running are produced that this kind stops) owing to the arrival of tape terminal point makes the rotation of reel 206, just disappearance of the pushing force of generation effect on swing plate 281.Consequently swing plate 281 is stopped owing to the maximum radius of rotating cam 279 moves to the left side.Therefore the joining section portion 280 of rotating cam 279 shown in Figure 16 engages with junction surface 283, and utilizes the revolving force of rotating cam 279 that the direction of the arrow A of swing plate 281 in figure is moved.Like this, the pushing lip portions 284 that is located on the swing plate 281 pushes the pressed sheets 287 that stops connecting rod 285, and the direction that stops the arrow B of connecting rod 285 in figure is rotated.Therefore, stop the stop segment portion 278(or 277 of connecting rod 285 from translating gear 234) leave, so the halted state of above-mentioned gear 234 just is disengaged.

Above-mentioned conversion rotor plate 223, as shown in figure 20, the reversal of poles conversion supported by two elastic components 292,293 with the conversion operation strip 291 of switch 233, and during translating gear 234 revolution half-turns, conversion operation strip 291 just makes its conversion by in the elastic component 292,293 any one.In addition, the too much rotation amount of rotor plate 233 is absorbed by the elastic deformation of elastic component 292 or 293, is to make the counter rotation of translating gear 234 in figure by conversion rotor plate 223 through the spring member 292 of elastic deformation or its effect of recuperability of 293 simultaneously.Thereby, as shown in figure 16, stop connecting rod 285 and leave the stop segment portion 278 of rotary pawl 276 or at 277 o'clock, translating gear 234 utilizes the recuperability of above-mentioned elastic component 292 or 293 only to counter rotation, and intermeshes with the gear 257 of rotation often and rotate.

During translating gear 234 rotation half-turns, stop connecting rod 285 and engages, forbid that once more it rotates again, but, conversion rotor plate 223 is reversed at this time owing to the engaging of double pointed nail 235 and conjugate foramen 225 with the stop segment portion 277 or 278 of opposition side.Like this, because the counter-rotating of conversion rotor plate 223 action makes conjugate foramen 221 and double pointed nail 224 engage one another in switch 233 conversion, thereby make supply side check that member stop board 219 is to left or right-hand moving.

When Figure 21 and Figure 22 were illustrated in magnetic head mounting plate 103 and are in the state of progressive position (operating position), supply side was checked the position of member stop board 219 and the relation of mechanism on every side.Magnetic head mounting plate 103 is when progressive position, and the cam pin 217 of pinch roller converter plate 215 is entrenched on the recess 222 of front end of the cam hole of being located on the stop board 219 220.Figure 21 represents the state of stop board 219 in the left position.At this moment, be located at the bead 230 of the rotor plate 226 of push-pads 301 on the left of the left pushing on the stop board 219, make gear 228 leave gear 255.Then, pinch roller converter plate 215 tendency lefts, the left end that utilizes helical spring 218 draws back the pinch roller 105 of left away from capstan 104, utilizes right-hand pinch roller 205 of right-hand member pushing of helical spring 218 simultaneously, and it is contacted with capstan 204.Therefore, the revolving force of motor 239 transmits to right-hand spool spindle 206, and tape is subjected to seizing on both sides by the arms of right-hand capstan 204 and pinch roller 205, and the right direction walking in figure is batched by the right-hand reel in the tape cassete.

Figure 22 represents the state of stop board 219 in right-hand position.In this case, the push-pads of being located on the stop board 219 302 is located at bead 231 on right-hand rotor plate 227 to right-hand pushing, makes gear 229 leave gear 254.Then, pinch roller converter plate 215 tendencies are right-hand, utilize the right-hand member of helical spring 218 that right-hand pinch roller 205 is drawn back away from capstan 204, utilize the left end pushing pinch roller 105 of helical spring 218 simultaneously, and it is contacted with capstan 104.Therefore, the revolving force of motor 239 transmits to the spool spindle of left, and tape is subjected to the capstan 104 of left and seizing on both sides by the arms of pinch roller 105, and the left in figure is to walking, is batched by the reel of the left in the tape cassete.Can see from the explanation of above-mentioned Figure 16, Figure 19, Figure 20, Figure 21 and Figure 22, to the last state that arrives the tape terminal point of any one direction walking, at this moment compression plate 274 no longer includes the effect of pushing force at tape.The engagement state that consequently stops connecting rod 285 and rotary pawl 276 is disengaged, and stop board 219 is slided in the opposite direction, owing to the conversion of the take-up direction of tape forms auto-reverse mechanism.

According to above-mentioned structure, carry out playback when action, as want to make high-speed magnetic tape to transmit (FF action), then can revolt the power of extension spring 125 and be pressed into the 2nd control member.When carrying out this operation, as using Fig. 6 and the illustrated mode of Fig. 9, in this case, and 103 actions that retreat of magnetic head mounting plate, the 2nd control member 109 utilizes block mechanism 140 to stop at operating position forward.When the 2nd control member 109 stops in the block mechanism 140, temporarily make the power of stop member 142 resistance extension spring 144 as shown in figure 18 and rotate.Consequently because the rotation of helical spring 310 makes swing plate 281 be subjected to the power of a direction as shown by arrow D, in this case, rotate owing to the common outer peripheral face of rotating cam 279 contacts with the left side edge of peristome 282, so can not carry out other function.As mentioned above, when magnetic head mounting plate 103 retreats, because seizing on both sides by the arms of capstan and pinch roller disappears the rotary load that is produced, so the speed of travel of tape just increases.Consequently can realize sending at a high speed band.Then, in order to stop to send at a high speed band, then can carry out push operation and make it arrive the position that Danone is removed the halted state of shut-down mechanism 140 the 1st control member 108.

Secondly, in playback, in the time of making tape walk (recoil) in the other direction at a high speed, can carry out push operation to the 1st control member.As carry out this operation, then when magnetic head mounting plate 103 retreats as the explanation that Figure 12 did, the part 142 of the junction surface of the 1st control member 108 145 pushings block mechanism 140, the pressed sheets 153 of push-pads 120 temporary transient bulldozing operation power transmission members 131 is followed junction surface 145 and is stopped on stop aperture 147 then.Shown in Figure 11 (b), when push-pads 120 contacted with pressed sheets 153, pressed sheets 153 was urged, and then operating physical force transmission member 131 is just rotated to the arrow C direction shown in Figure 16.Consequently push-pads 155 pushings stop the joint lip portions 288 of connecting rod 285.Therefore, stopping the stop segment portion 277 of connecting rod 285 and rotary pawl 276 or 278 engagement state is removed forcibly.This relation is identical with above-mentioned auto-reverse action.Therefore, the mobile direction of travel conversion that makes tape of stop board 219.Retreat according to above-mentioned mode because of magnetic head mounting plate 103 this time, thus the same with the situation of FF action, can realize that opposite direction at a high speed transmits.In addition, when this action is stopped, then the 2nd control member 109 is carried out the position that push operation makes its arrival can allow block mechanism 140 remove halted state.The 1st control member 108 pushes pressed sheets 153 once more because of push-pads 120 when the recovery direction moves, so the operating physical force transmission member 131 arrow C direction in Figure 16 is once more rotated, therefore stop board 219 reversally slides, and the direction of travel of tape is transformed into recoils preoperative direction.

As mentioned above, when being pressed into the 1st control member 108 and recoiling, according to the time sequential routine of control member 108, as shown in figure 18, the maximum radius portion of rotating cam 279 is positioned at the left side edge of peristome 282, when this state, stop connecting rod 285 and be forced to break away from rotary pawl 276, thereby making translating gear 234 begin rotation, stop board 219 slides, and forms the condition that tape suspends walking.Under this condition, because swing plate 281 becomes the state that is positioned at leftward position, when rotating cam 279 rotation half way arounds, 280 in stop segment portion engages with junction surface 283, promptly might carry out and identical action is done in the action of reversing voluntarily.But in such an embodiment, when utilizing the junction surface 145 of the 1st control member 108 that stop member 142 is rotated by E direction shown in Figure 180, making helical spring 310 rotate on the F direction thereupon and swing plate 281 sides are squeezed in the F direction, will be that the right-hand rotation revolving force of fulcrum gives swing plate 281 with axle 312.Therefore, in aforesaid sequential, under the 1st control member 108 operated situations, also can avoid engaging of stop segment portion 280 and junction surface 283, so can prevent the generation of malfunction.

On the other hand, when manually carrying out reverse turn operation, the operation that can be pressed into the 1st and the 2nd control member 108,109 simultaneously.When carrying out this operation, as the explanation that Fig. 7 did, be pressed into a certain amount of position from two control members 108,109, tape direction transformation member 126 is with two control members 108,109 the advance specified amount and the part 151 of bulldozing operation power transmission member 131.Therefore, the direction shown in the arrow C of operating physical force transmission member 131 in Figure 16 is rotated.Then, the engagement state that stops between connecting rod 285 and the rotary pawl 276 is disengaged, and the result makes the direction of travel conversion of tape.At this moment, magnetic head mounting plate 103 does not carry out backward movement.Thereby, can carry out manual counter-rotating action.Then, the counter-rotating action is stopped, when making tape be transformed into original direction of travel, the then operation that can be pressed into simultaneously two control members 108,109 once more.

As mentioned above, send and drive to do or recoil action carrying out high speed, and when arriving the tape terminal point at last, the same with the situation of auto-reverse action, stopping connecting rod 285 is urged and rotates in the pushing lip portions 284 of swing plate 281, utilize this to rotate, operating physical force transmission member 131 is rotated according to the direction shown in the arrow C among Figure 16 by being located at the joint lip portions 288 that stops connecting rod 285.Therefore, the tab 152 of being located at operating physical force transmission member 131 makes 142 pairs of extension springs of part of block mechanism 140 have the trend of resistance.The junction surface 145 or 146 that consequently stops on the stop aperture 147 breaks away from, thereby the control member that stops in the block mechanism 140 can automatically be restored.

As mentioned above, when the 1st and the 2nd control member stops at forward on the operating position by block mechanism, tape one then utilizes the formed connecting rod that stops of triggering member to make the operating physical force transmission member that a trend be arranged to terminal point, utilizes this trend can make block mechanism 140 remove action.Therefore, operating physical force transmission member 131 can be brought into play the function that the displacing force that makes the 1st and the 2nd control member 108,109 is sent to function that stops connecting rod 285 and the halted state that makes the 1st and the 2nd control member 108,109 in FF, recoil state when tape is reached home releasing.Thereby recording, the rotary transfer mechanism used of playback also can be at FF, former state dual-purposes when recoiling, and can make simple structure and low price.In addition when operation the 1st control member is recoiled action, swing plate is the operation interlock of the 1st control member therewith, make its ability, can prevent incidental misoperation so recoil when operating, and the action that is rich in reliability can be provided with the misoperation of preventing.

Accompanying drawing is represented an embodiment of the present utility model, and Fig. 1 is the planimetric map of tape recording machine mechanism part, and Fig. 2 is the broad cross-section map of the confined state of expression control member, and Fig. 3 is the exploded perspective view of the control member of Fig. 1 and Fig. 2.Fig. 4 is the figure of the relation of expression the 1st and the 2nd control member and tape direction transformation member to Fig. 7, Fig. 8 and Fig. 9 are the figure that expression control member and magnetic head mounting plate retreat the relation of mechanism, Figure 10 and Figure 11 are the figure of the formation of expression block mechanism, Figure 12 is the exploded perspective view of the relation of expression operating physical force transmission member and block mechanism, Figure 13 is the general view that is illustrated in peripheral part of tape walking direction transformation mechanism in the mechanism part of blattnerphone, Figure 14 is the general view of expression rotation transfer path, Figure 15 is the skiagraph of expression overload slide mechanism, Figure 16 is the planimetric map that member and associated mechanisms thereof are checked in the expression rotation to Figure 18, Figure 19 is the skiagraph around the translating gear, Figure 20 is the expression translating gear and the planimetric map of mechanism all around thereof, and Figure 21 and Figure 22 are the planimetric maps that the expression supply side is checked member stop board and associated mechanisms thereof.

The part of employed main number and expression thereof is in the accompanying drawing:

101 ... the tape recording substrate, 102 ... magnetic head,

103 ... the magnetic head mounting plate, 104,204 ... capstan,

105,205 ... pinch roller,

106,206 ... spool spindle,

108 ... the 1st control member,

109 ... the 2nd control member,

126 ... tape direction transformation member,

131 ... the operating physical force transmission member,

140 ... block mechanism,

285 ... as the connecting rod that stops that triggering member,

310 ... helical spring.

Claims (1)

1, a kind of blattnerphone comprises:

Magnetic head;

At a pair of capstan, a pair of pinch roller and a pair of spool spindle of the left-right symmetric of said head configuration, so that in the tape action of recording or regenerate during traveling on any direction to the left and right;

Motor;

Be used for the revolving force of said motor is sent to the rotary transfer mechanism of a spool spindle in the spool spindle of the above-mentioned left and right sides;

At ordinary times by the main drive gear of the revolving force transmission of said motor;

The rotating cam that on its part, has the junction surface and rotate with above-mentioned main drive gear interlock;

Transmission gear with the non-engaging piece that lacks the part tooth, by the elastic biasing means make its have to the trend of the direction motion of above-mentioned main drive gear engagement;

Above-mentioned transmission gear is remained on above-mentioned main drive gear do not carry out triggering member on the position engaged;

Revolving force by above-mentioned spool spindle makes it have the rock body of the trend of the direction motion that engages to the junction surface of the above-mentioned rotating cam of discord, in case above-mentioned spool spindle stops that above-mentioned rock body engages with the junction surface of above-mentioned rotating cam, revolving force by this rotating cam moves above-mentioned rock body and make above-mentioned triggering member keep removing action with above-mentioned rock body with regard to making, thereby by the elastic force of above-mentioned elastic biasing means above-mentioned transmission gear is meshed with above-mentioned main drive gear;

Make the mapping device of its action by the revolving force of above-mentioned transmission gear, thereby will be transformed into the opposing party's spool spindle one side from a side spool spindle one side by the used rotation transfer path of above-mentioned rotary transfer mechanism;

With the control member of manually operating;

Effect by the aforesaid operations member can make above-mentioned triggering member keep removing the transmission member of action;

Make its block mechanism that moves onward by the mobile of aforesaid operations member, above-mentioned block mechanism turns back to primary position and the aforesaid operations member is stopped on the shift position in case the aforesaid operations member arrives certain position;

With the releasing member of above-mentioned triggering member and above-mentioned mapping device interlock, in case during the action of above-mentioned triggering member or above-mentioned mapping device, make by the halted state of the caused aforesaid operations member of above-mentioned block mechanism by above-mentioned releasing member and to remove;

It is characterized in that being provided with by the spring member of above-mentioned block mechanism pushing, promote above-mentioned block mechanism when moving onward at the aforesaid operations member, above-mentioned spring member is accepted the pushing force of above-mentioned block mechanism, thereby makes above-mentioned rock body have trend to the direction motion that does not engage with above-mentioned rotating cam.

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