CN1043446C - Cassette recorder - Google Patents
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- CN1043446C CN1043446C CN93117688A CN93117688A CN1043446C CN 1043446 C CN1043446 C CN 1043446C CN 93117688 A CN93117688 A CN 93117688A CN 93117688 A CN93117688 A CN 93117688A CN 1043446 C CN1043446 C CN 1043446C
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- swivel arm
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Abstract
The invention aims to simplify a rotation driving system of a reel receiving part and the control system thereof in a tape recorder and to miniaturize the overall shape. The device is provided with 1st intermediate gears which are always engaged with capstan gears and also selectively engaged with a reel gear for high speed rotation, and 2nd intermediate gears which are simultaneous engaged with the 1st intermediate gears separated from the reel gear for high speed rotation and with a reel gear for low speed rotation. Then, on a head substrate, 1st control parts and also 2nd control parts are provided.
Description
The present invention relates to the blattnerphone of simplification of a kind of tep reel axle bed rotary drive system and control system thereof and whole configuration miniaturization.
The tape drive mechanism of walking in the blattnerphone of prior art is to constitute with the tep reel drive system that driving tep reel axle bed rotates along the winding direction by driving the capstan drive system of capstan by the certain speed rotation basically, capstan is wherein pressed tape thereon by pinch roller, make tape speed operation in accordance with regulations, and the take-up reel of magnetic tape cassette is contained on the tep reel axle bed.This tep reel drive system is made of rotary drive system, and the motor driven capstan is pressed the certain speed rotation, and rotary drive system sends the rotation of capstan to the tep reel axle bed again.Specifically, this rotation kinematic train has little high speed rotating transfer gear train of a cover reduction gear ratio and the big low speed rotation transfer gear train of a cover reduction gear ratio, and this kinematic train is exactly to make tep reel axle bed high speed rotating or low speed rotation via these gear trains selectively.
When sound-track engraving apparatus is set at record/mode playback, pinch roller is crimped on and makes tape speed operation in accordance with regulations on the capstan, simultaneously, drive the tep reel axle bed via above-mentioned low speed rotation transfer gear train and slowly run, thus last speed in accordance with regulations the tape that moves of speed forward be wound on the tep reel.In addition, be set at sound-track engraving apparatus under the situation of fast-forward mode, aforesaid pinch roller is separated from capstan, drives tep reel axle bed high speed rotating by the high speed transfer gear train, thereby the tape fast winding is got up.
Therefore, the inventor has proposed the application (the flat 4-207285 of Japanese patent application number) of relevant rotating actuator, this rotating actuator at first has the 1st neutral gear that makes above-mentioned tep reel axle bed high speed rotating, also has the 2nd neutral gear that above-mentioned tep reel axle bed is slowly run simultaneously.Wherein the 1st neutral gear can be engaged on coaxial all the time and be integrally formed on the capstan gear on the capstan, and selectively be arranged on the tep reel axle bed on the tep reel gear used of minor diameter high speed rotating be meshed; When the 1st neutral gear was in the position that breaks away from the tep reel gear defined that high speed rotating uses, the 2nd neutral gear can be engaged on the tep reel gear and the 1st neutral gear of the large diameter low speed rotation usefulness that is arranged on the aforementioned tep reel axle bed simultaneously.
This rotating actuator mainly is to utilize the rotation of the 1st neutral gear that drives tep reel axle bed high speed rotating that the rotation of capstan gear is sent to the tep reel gear that high speed rotating is used, and the rotational delay of the 1st neutral gear being sent to the tep reel gear that low speed rotation is used via the 2nd neutral gear, it is not to drive the tep reel axle bed with original the sort of huge reducing gear to slowly run.
The rotating actuator of this structure can not make number of parts increase, and can not cause structure complicated yet and can carry out high speed rotating transmission and low speed rotation transmission, and the one-piece construction of tep reel drive system and even sound-track engraving apparatus can both realize miniaturization effectively.
; as mentioned above; when the rotation of the 1st neutral gear makes tep reel axle bed low speed rotation via the 2nd neutral gear, must make the 1st neutral gear be separated from the tep reel gear that high speed rotating is used, and will remain on this 1st neutral gear on the position of the regulation that can be meshed with the 2nd neutral gear.
Usually, neutral gear is arranged on the rotation end of dwang, this dwang is imposed elastic force to a direction, with the turned position of the above-mentioned dwangs of restriction such as catch, control the engagement of neutral gear and determine its position simultaneously with this.
But, when this control gear is assembled the 1st and the 2nd neutral gear respectively, just lost the advantage of the tep reel drive system of specially having simplified.
Like this, have with the rotation of capstan in manufacturing and to drive the tep reel axle bed at a high speed or during the blattnerphone of low rotation kinematic train of changeing rotation, how constitute and also have a little problems aspect the rotary drive system (rotation kinematic train) of above-mentioned tep reel and the control system thereof.
The present invention has considered such problem and has made, and the purpose of this invention is to provide a kind of rotary drive system of tep reel axle bed and makes its control system oversimplify the blattnerphone of global shape miniaturization.
The present invention is a kind of blattnerphone that has the 1st neutral gear that is arranged on the 1st swivel arm rotation end and be arranged on the 2nd neutral gear of the 2nd swivel arm rotation end, wherein the 1st neutral gear is engaged on the capstan gear all the time, and be engaged in the tep reel gear that high speed rotating is used selectively, drive tep reel axle bed high speed rotating, when above-mentioned the 1st neutral gear is in the assigned position that breaks away from aforementioned high speed rotating usefulness tep reel gear, the 2nd neutral gear is engaged on the tep reel gear that aforementioned the 1st neutral gear and low speed rotation use simultaneously, thereby drives tep reel axle bed low speed rotation.
Particularly the feature of this blattnerphone also is: load the magnetic head substrate of advancing and retreat between magnetic head and tape playback position and the stop position and be provided with the 1st control part, be used for when magnetic head substrate is in playback position and the contacting of the 1st swivel arm, aforementioned the 1st neutral gear remained on the position of aforementioned regulation; On magnetic head substrate, be provided with the 2nd control part simultaneously, be used for when magnetic head substrate is in stop position,, stop aforementioned the 2nd neutral gear to the displacement of the aforementioned position of engagement with contacting of the 2nd swivel arm.
If adopt words of the present invention, because be arranged on the 1st on magnetic head substrate and the 2nd control part corresponding to the shift position separate provision the 1st of magnetic head substrate and the position of the 2nd neutral gear, thereby control the 1st and the 2nd neutral gear to high speed rotating with and the tep reel gear used of low speed rotation, so do not need other control part the 1st and the 2nd neutral gear to be limited on the position of regulation according to pattern, so just reduce the number of necessary part, and simplify the structure.
Its structure is in the designs simplification of the rotation kinematic train that the rotation of capstan is passed to the tep reel axle bed, and its control system is oversimplified, thereby helps the miniaturization of blattnerphone integral body.
One embodiment of the present of invention are described with reference to the accompanying drawings.
Fig. 1 (a) is the summary construction diagram of the rotation kinematic train of blattnerphone from capstan to the tep reel axle bed of one embodiment of the present of invention;
Fig. 1 (b) is the summary pie graph of the rotation kinematic train from the motor to the capstan among the same embodiment.
Fig. 2 is the vertical view of the rotation kinematic train part-structure of right side from capstan 5b to tep reel axle bed 7b among the same embodiment;
Fig. 3 is along arrow I among Fig. 2-I direction cut-open view;
Fig. 4 is the vertical view that rotates the relation of kinematic train part and magnetic head substrate among the same embodiment of expression;
Fig. 5 is the vertical view that rotates kinematic train part and conversion and control part relations among the same embodiment of expression;
Fig. 1 (a) (b) has represented the general configuration of the rotation kinematic train in the blattnerphone relevant with embodiment, and wherein 1 is mainframe, the 2nd, and with the secondary frame of the laminated integrated formation of mainframe, these two frames 1,2nd are made of molded synthetic resin.
And, the parts in addition in left side in the main parts in addition that additional letter a represents to be symmetrical set, additional letter b then represents the main parts in addition on right side.
On mainframe 1, with aforementioned a pair of capstan 5a, 5b left and right symmetrically accordingly is provided with tep reel axle bed 7a, 7b; The 1st neutral gear 8a, 8b and the 2nd neutral gear 9a, 9b also left and right symmetrically are arranged on this mainframe 1, and they are used for the rotation of capstan 5a, 5b is delivered to respectively on tep reel axle bed 7a, the 7b selectively; Tep reel axle bed 7a, 7b then drive via the 1st neutral gear 8a, 8b and the 2nd neutral gear 9a, 9b and as hereinafter described such high speed rotating or low speed rotation selectively.
Fig. 2 and Fig. 3 show in detail the structure of the rotation running part from right side capstan 5b to tep reel axle bed 7b, and wherein Fig. 2 is a vertical view, and Fig. 3 is schematic cut-open view.And the left side from capstan 5a to tep reel axle bed 7a the rotation kinematic train and the symmetry on right side, structure is also identical.
As shown in Figures 2 and 3, each tep reel axle bed 7a, 7b presses solidly at the high speed rotating of minor diameter tep reel gear 10a, the tube portion upper end of 10b, rotation is supported on the turning axle that vertically is arranged on the secondary frame 2 freely, the tep reel gear 10a that uses at high speed rotating, the tube portion central part of 10b is provided with large diameter low speed rotation tep reel gear 12a coaxially, 12b, via slip gear 11a, 11b, the tep reel gear that high speed and low speed are used can rotate integratedly, and this slip gear is located at the tep reel gear 10a that high speed rotating is used by being attached to, on the ring flange of 10b by the friction parts of systems such as felt materials and be inlaid in tep reel axle bed 7a, 7b and low speed rotation gear 12a, between the 12b low speed rotation gear 12a, the spring that the first type surface of 12b is crimped on the above-mentioned friction parts constitutes.
The tep reel gear 12a that low speed rotation is used, the rotation of 12b are delivered to tep reel gear 10a, the 10b that high speed rotating is used through such friction mechanism 11a, 11b, thus tep reel gear 10a, the rotation of 10b one that tep reel axle bed 7a, 7b and high speed rotating are used.Therefore, drive tep reel gear 12a, the 12b rotation that tep reel gear 10a, 10b that high speed rotating uses or low speed rotation are used selectively through the 1st neutral gear 8a, 8b or the 2nd neutral gear 9a, 9b, thereby make tep reel axle bed 7a, 7b at a high speed or low speed rotation.
Aforesaid the 1st neutral gear 8a, the 8b rotation is supported in the 1st swivel arm 13a that forms one with mainframe 1 freely, the rotation end of 13b, large diameter outer toothed portion a is engaged on capstan gear 6a all the time, on the 6b, and with above-mentioned the 1st swivel arm 13a, the rotation of 13b can be engaged in the tep reel gear 10a that aforementioned high speed rotating is used selectively, 10b, in addition, the 1st neutral gear 8a, 8b also has the coaxial b of internal tooth portion that is located at aforementioned external teeth portion a inboard, and the b of this internal tooth portion is formed at excircle and is provided with on the inwall of coaxial outstanding cylindrical portion on the principal plane of gear of a of aforementioned external teeth portion own.
On the other hand, the 2nd neutral gear 9a, 9b are that the gear by 2 segment structures constitutes, this gear has the major diameter outer toothed portion c and the minor diameter outer toothed portion d of coaxial setting, major diameter outer toothed portion c can be meshed with aforementioned the 1st neutral gear 8a, 8b, and minor diameter outer toothed portion d can be engaged in tep reel gear 12a, 12b that aforementioned low speed rotation is used.The 2nd neutral gear 9a, 9b rotation is supported in the 2nd swivel arm 14a integrally formed with aforementioned mainframe 1, the rotation end of 14b freely, when aforementioned the 1st neutral gear 8a, 8b are in the position that is separated from tep reel gear 10a, 10b that aforementioned high speed rotating uses, rotation along with the 2nd swivel arm 14a, 14b, above-mentioned large diameter outer toothed portion c is engaged in the b of internal tooth portion of the 1st neutral gear 8a, 8b, and the outer toothed portion d of minor diameter is meshed with tep reel gear 12a, the 12b that low speed rotation is used simultaneously.
Above-mentioned the 1st swivel arm 13a, 13b and the 2nd swivel arm 14a, 14b is by holding narrow neck under the arm and mainframe 1 is connected as a single entity, under the elastic force effect of above-mentioned neck, make two swivel arms remain on neutral position, and rely on the 1st swivel arm 13a, the rotation of 13b makes aforementioned the 1st neutral gear 8a, 8b (outer toothed portion) is engaged on the tep reel gear 10a that high speed rotating is used, on the 10b, at the 1st swivel arm 13a, 13b remains on and makes the 1st neutral gear 8a, 8b breaks away from aforementioned high speed rotating gear 10a, under the state of the assigned position of 10b, by the 2nd swivel arm 14a, the rotation of 14b makes the 2nd neutral gear 9a, the major diameter of 9b and the outer toothed portion c of minor diameter, d is engaged in low speed rotation gear 12a respectively simultaneously, 12b and the 1st neutral gear 8a, 8b.
As described below, with the pattern conversion operations interlock of blattnerphone, by this swivel arm 13a, 13b, the engagement between the above-mentioned gear is controlled in the rotation of 14a, 14b.
When being set at the fast operational mode of tape (FF/REW), left and right any the 1st swivel arm 13a, 13b are engaged on high speed rotating to the 1st neutral gear 8a, 8b with on tep reel gear 10a, the 10b thereupon controlled and rotate.About among the 1st swivel arm 13a, the 13b which rotation depend on by giving as security dextrad F.F. (FF) operation push-button or pressing potassium left-hand F.F. (REW) operation push-button, under the situation of F.F. FF, the 1st swivel arm 13b on right side rotates, and the 1st swivel arm 13a in left side rotates when the REW rewinding.At this moment, the 2nd swivel arm 14a, 14b are limited to rotate and are in the 2nd neutral gear 9a, 9b are separated from the position of tep reel gear 12a, 12b that low speed rotation uses.
The result, the rotation of aforementioned capstan gear 6a, 6b is delivered to tep reel gear 10a, the 10b that high speed rotating is used via the 1st neutral gear 8a, 8b, the transmission of gear 10a, 10b that the rotation of capstan gear 6a, 6b is used to high speed rotating is to carry out with the rotation ratio of gear that the gear ratio of gear 10a, 10b determines by this capstan gear 6a, 6b and high speed rotating, therefore, tep reel axle bed 7a, 7b are driven high speed rotating.
When setting the record pattern of putting (PLAY/REC) that tape low speed sends to, corresponding to the tape running direction of setting, a left side or right any the 2nd swivel arm 14a, 14b are controlled and rotate.The conversion controling part of setting tape running direction that is used for changing described later is depended in which rotation of left and right sides among the 2nd swivel arm 14a, the 14b.At this moment must make the 1st neutral gear 8a, 8b as hereinafter described, and remain on the position of disengaging high speed rotating to the 1st neutral gear 8a, 8b with the 2nd neutral gear 9a, 9b engagement with gear 10a, 10b.
Like this, rotation along with the 2nd swivel arm 14a, 14b, be supported in the d of internal tooth portion that the 2nd neutral gear 9a, 9b on the 2nd swivel arm 14a, the 14b just is engaged in its large diameter outer toothed portion c the 1st neutral gear 8a, 8b, the outer toothed portion d of its minor diameter is meshed with tep reel gear 12a, 12b with low speed rotation.The result, the rotation of aforesaid capstan gear 6a, 6b is passed to low speed rotation tep reel gear 12a, 12b from the 1st neutral gear 8a, 8b through the 2nd neutral gear 9a, 9b, and this rotation further is delivered on tep reel axle bed 7a, the 7b through slip gear 11a, 11b.
Carry out through slowing down continuously with the rotation transmission of gear 12a, 12b to low speed rotation from capstan gear 6a, 6b, elder generation is slowed down by the gear ratio of the outer toothed portion a of capstan gear 6a, 6b and the 1st neutral gear 8a, 8b, gear ratio through the major diameter outer toothed portion c of the b of internal tooth portion of the 1st neutral gear 8a, 8b and the 2nd neutral gear 9a, 9b slows down again, and further the gear ratio by the minor diameter outer rotor d of the 2nd neutral gear 9a, 9b and tep reel gear 12a, 12b that low speed rotation is used slows down.As a result, low speed rotation is slowed down significantly and is rotated through 3 sections with tep reel gear 12a, 12b, thereby drives tep reel axle bed 7a, 7b with very low speed rotation.
The 1st swivel arm 13a, 13b in the rotation kinematic train of structure and the 2nd swivel arm 14a, 14b are described below according to the rotation of operator scheme as mentioned above.
As shown in Figure 4 and Figure 5, the magnetic head substrate 21 that loads the magnetic head (not shown) can be arranged on along direction (arrow A direction) with the tape running direction quadrature with moving freely main frame 1 above, F.F. (FF, REW) control lever 22,23 and stop (STOP) control lever 24 and can move along the A direction and be arranged side by side freely below magnetic head substrate 21.
Above-mentioned magnetic head substrate 21 double as playback (PLAY) functional units, pushing of playback operation bar moves forward magnetic head substrate 21, and only lean against and make magnetic head and the contacted position of tape (playback position), the above-mentioned forwarding operation bar 22,23 or the operation of shut-down operation bar 24 are removed magnetic head substrate 21 and are only leaned on, thereby magnetic head are turned back to leave the position (stop position) of tape.
In addition, push forwarding operation bar 22,23 and make it to move forward, and only lean against on its reach position, aforementioned magnetic head substrate (playback operation portion), the opposing party's the forwarding operation bar 22,23 or the operation of shut-down operation bar 24 can be removed this and end by state.Certainly, this forwarding operation bar 22,23 also can make and lean against the locational version of reach incessantly.As above-mentioned each functional unit that contains magnetic head substrate 21 reach locational end by and the mechanism that removes, various schemes of ending by mechanism originally all can be suitable for, but irrelevant about ending by mechanism and theme of the present invention, so omitted relative explanation at this.
The conversion controling part 25 of tape running direction is arranged between the top of aforementioned mainframe 1 and the said head substrate 21, and can move freely along the direction (arrow B direction) with the moving direction quadrature of magnetic head substrate 21.Slide plate 26 and rotor plate 28 that conversion controling part 25 is made by synthetic resin constitute, and rotor plate 28 is arranged on integratedly through narrow neck 27 on the side of central part of slide plate 26.The centre of rotor plate 28 is rotated and is installed in freely on the aforementioned mainframe 1, with the running transform position of the left and right directions of slide plate 26, rotor plate 28 correspondingly along clockwise direction or counter-clockwise direction rotate the angle of regulation.
Specifically, with the manual operation of tape running direction conversion operations bar (not shown) mutually interlock aforementioned slide plate 26 is moved, perhaps make slide plate 26 move displacement, on the extreme position that move on the left of then it being remained on or right side by the action of magnetic tape terminal testing agency (not shown).When slide plate is in the left side moving limit position, Lian Dong such rotation plate 28 is maintained at the position that clockwise direction is rotated therewith, stop the rotation of the 2nd swivel arm 14b by the right side coupled arm 29b of contact on rotor plate 28, and this moment, because the coupled arm 29a in left side does not limit the rotation of the 2nd swivel arm 14a, so, be set at aforesaid playback, during recording mode, the 2nd swivel arm 14a on the left of having only rotates and shifts one's position.
When slide plate 26 was in the right side moving limit position, the limited in rotation system of Zuo Ce the 2nd swivel arm 14a had only the 2nd swivel arm 14b on right side to rotate and displacement when being set at the playback recording mode conversely.The rotation that is accompanied by the rotor plate 28 of slide plate 26 this mobile displacements is obstructed the side's of the 2nd swivel arm 14a, 14b rotation, and the 2nd swivel arm 14a, 14b, the opposing party then rotates with the setting of playback recording mode, thus since aforesaid the 2nd neutral gear slowly run with tep reel gear 12a, 12b and be maintained at assigned position the 1st neutral gear 8a, 8b engagement and drive tep reel gear 7a, 7b low speed rotation selectively.
At this, the feature of sound-track engraving apparatus of the present invention is with the setting of aforesaid recording recording mode and remove sets and come and go between playback position and stop position that the magnetic head substrate 21 that moves is provided with aforementioned the 1st swivel arm 13a, 13b contact and the 1st neutral gear 8a, 8b limited the 1st control part 31a, the 31b that remains on assigned position; Be provided with the 2nd swivel arm 14a simultaneously, 14b contacts and limit the 2nd control part 32a, the 32b of aforementioned the 2nd neutral gear 9a, 9b.
The 1st control part 31a, 31b are made of the recess that cuts out on the edge of magnetic head substrate 21, when aforementioned magnetic head substrate 21 when playback position moves, guide the projection (supporting axis of the 1st neutral gear 8a, 8b) of aforementioned the 1st swivel arm 13a, the last setting of 13b to embed in the above-mentioned recess, thereby limit the position of the 1st swivel arm 13a, 13b.Because the 1st control part 31a, 31b have determined the position of the 1st swivel arm 13a, 13b and have limited its rotation, thereby the 1st neutral gear 8a, the 8b that are supported on the 1st swivel arm 13a, the 13b are in break away from the position of the regulation of tep reel gear 10a, 10b that aforementioned high speed rotating uses, simultaneously the 2nd neutral gear 9a, the 9b of tep reel gear 12a, the 12b engagement of using with aforementioned low speed rotation remain on may position engaged on.
The protrusion tab that contacts with the part of the 2nd swivel arm 14a, 14b when the 2nd control part 32a, 32b are in stop position by aforementioned magnetic head substrate 21 and stop the 2nd swivel arm 14a, 14b to rotate constitutes.Because the 2nd control part 32a, 32b stop the rotation of the 2nd swivel arm 14a, 14b, and the 2nd neutral gear 9a, the 9b that are supported on the 2nd swivel arm 14a, the 14b are stoped to the conversion of low speed rotation with the position of engagement of tep reel gear 12a, 12b.The result, when not setting the playback recording mode, magnetic head substrate 21 is in stop position, the 2nd control part 32a, the 32b that are arranged on the magnetic head substrate 21 stop the rotation of the 2nd swivel arm 14a, 14b, thereby prevent the tep reel gear 12a that the 2nd neutral gear 9a, 9b use with low speed rotation, the unnecessary engagement of 12b.
Therefore, have the 1st and the 2nd control part 31a, 31b like this; The magnetic head substrate 21 of 32a, 32b just can be supporting the 1st and the 2nd neutral gear 8a, 8b respectively, and the 1st and the 2nd swivel arm 13a of 9a, 9b, 13b, 14a, 14b set respectively on the position that remains on defined according to the pattern that is set.In a word, need not the 1st swivel arm 13a, 13b and the 2nd swivel arm 14a, 14b to be carried out position control separately according to pattern, just can utilize magnetic head substrate 21 displacements own to carry out position control effectively, the result, reduced the constituent part of rotation kinematic train and control system thereof, become possibility thereby its structure is simplified widely.
When particularly moving to when putting the position along with the setting magnetic head substrate 21 of tape low speed feeding mode (PLAY/REC), the 1st control part 31a, the 31b that is provided with on the magnetic head substrate 21 limits the position of the 1st swivel arm 13a, 13b live, thereby aforesaid the 1st neutral gear 8a, 8b are remained on the tep reel gear 10a that breaks away from aforementioned high speed rotating and use, the position of 10b.So, corresponding to the tape running direction of setting, when the side of the 2nd swivel arm 14a, 14b rotates displacement, just positively be engaged in tep reel gear 12a, the 12b that aforementioned the 1st neutral gear 8a, 8b and low speed rotation are used, and stably maintain this state being supported in the 2nd neutral gear 9a, 9b on the 2nd swivel arm 14a, the 14b.
When being disengaged, the low speed progressive die formula (PLAY/REC) of above-mentioned tape (stops; STOP) or at a high speed send band model (FF/REW) when being set, magnetic head substrate 21 is maintained at stop position thereupon, like this, the 2nd control part 32a, the 32b that are arranged on the aforementioned magnetic head substrate 21 contact with the 2nd swivel arm 14a, 14b, limit the rotation of the 2nd swivel arm 14a, 14b.And the 2nd neutral gear 9a, the 9b that are supported on the 2nd swivel arm 14a, the 14b stably remain on the position that breaks away from tep reel gear 12a, 12b both sides with the 1st neutral gear 8a, 8b and low speed rotation.
Particularly when being set at high speed feeding mode (FF/REW), with aforementioned control lever 22,23 interlocks of sending to soon.The 1st swivel arm 13a, 13b select that one ground rotates and amesiality, thereby the 1st neutral gear 8a, the 8b that rotate the last support of secund the 1st swivel arm 13a, 13b are engaged on tep reel gear 10a, the 10b that high speed rotating uses.At this moment, because the 2nd control part 32a, 32b had both removed the tep reel gear 12a that the 2nd neutral gear 9a, 9b and low speed rotation use, the engagement of 12b, again the 2nd neutral gear 9a, 9b are remained on the position that breaks away from tep reel gear 12a, 12b that low speed rotation uses, so the rotation driving of tep reel gear 12a, 12b that low speed rotation is used and the tep reel gear 10a that high speed rotating is used, the rotation of 10b drive not contradiction.In a word, drive with the rotation that tep reel gear 10a, 10b simply and reliably carry out tep reel axle bed 7a, 7b with tep reel gear 12a, 12b or high speed rotating through low speed rotation selectively.
As mentioned above, the rotation kinematic train that the rotation capstan 5a, 5b of relevant blattnerphone of the present invention is passed to tep reel axle bed 7a, 7b is made of above-mentioned the 1st neutral gear 8a, 8b and the 2nd neutral gear 9a, 9b, supports that the 1st swivel arm 13a, the 13b of these neutral gears 8a, 8b, 9a, 9b and the 2nd swivel arm 14a, 14b are integrally formed with plastic mainframe.And by being arranged on the 1st control part 31a, 31b on the magnetic head substrate 21 and the 2nd control part 32a, 32b limit the 1st swivel arm 13a, 13b and the 2nd swivel arm 14a, 14b corresponding to the position of magnetic head substrate 21 rotation or its turned position.Therefore, the structure of rotation kinematic train and control system thereof is greatly simplified and makes simple and easy, and the while can be stablized and reliably the rotation of capstan 5a, 5b is delivered on tep reel axle bed 7a, the 7b.
In a word, because be to utilize the mobile magnetic head substrate 21 of advancing and retreat by pattern to carry out the 1st swivel arm 13a, 13b and the rotation of the 2nd swivel arm 14a, 14b and the restriction of turned position thereof, so, can reach effectively to constitute and oversimplify and the action stabilization.
The present invention is not limited only to the above embodiments, embodiment has illustrated automatic turn-over formula blattnerphone, equally also go for what is called " one-way fashion " blattnerphone, in this case, it is self-evident need not aforesaid conversion controling part 28, and the rotation kinematic train on the left of can saving is only just passable with the rotation kinematic train formation blattnerphone on right side.
In addition, also can make the 2nd swivel arm 14a, 14b contact on the magnetic head substrate 21 that from the stop position to the playback position, moves, the 2nd swivel arm 14a, 14b be rotated carry out the tep reel gear 12a that the 2nd neutral gear 9a, 9b use to the 1st neutral gear 8a, 8b and low speed rotation, the engagement of 12b with this contact.In a word, also the 3rd control part can be set on magnetic head substrate 21, when playback position moves, contact, the 2nd swivel arm 14a, 14b are rotated with the 2nd swivel arm 14a, 14b from stop position.
In addition, in not exceeding the scope that the present invention mainly conceives, can implement all deformation programs.
As mentioned above, according to structure of the present invention, being arranged on the 1st control part on the magnetic head substrate and the 2nd control part defines as from the position of capstan to the 1st and the 2nd neutral gear of the rotation kinematic train of tep reel axle bed according to the position of magnetic head substrate, so do not need to be used for the 1st, the 2nd neutral gear is positioned at each other parts of assigned position, thereby reduced necessary the number of parts and made designs simplification.Simplification with the rotation kinematic train can realize the effect that its control system is simplified.
Claims (3)
1, a kind of blattnerphone has:
Capstan gear (6a, 6b) by the motor driven rotation; Be arranged on the tep reel gear (12a, 12b) that tep reel gear (10a, 10b) that the high speed rotating on the tep reel axle bed (7a, 7b) uses and low speed rotation are used;
Be supported in the 1st neutral gear (8a, 8b) on the rotation end of the 1st swivel arm (13a, 13b), it is meshed with aforementioned capstan gear all the time, and can be engaged on selectively on the tep reel gear that aforementioned high speed rotating uses;
Be supported in the 2nd neutral gear (9a, 9b) on the rotation end of the 2nd swivel arm (14a, 14b), when aforementioned the 1st neutral gear was in the position that breaks away from the tep reel gear regulation that aforementioned high speed rotating uses, the 2nd neutral gear can be engaged in the tep reel gear that the 1st neutral gear and aforesaid low speed rotation are used simultaneously;
The magnetic head substrate (21) that loads magnetic head and between the stop position of playback position that makes magnetic head contact tape and disengaging tape, be provided with free to advance or retreatly;
It is characterized in that this magnetic head substrate is provided with the 1st control part (31a, 31b) that aforementioned the 1st neutral gear is remained on assigned position that contacts that is used for when magnetic head substrate is in playback position with the 1st swivel arm; Be provided with simultaneously and be used for when magnetic head substrate is in stop position and the contacting of the 2nd swivel arm, stop 2nd control part (32a, 32b) of aforementioned the 2nd neutral gear to the displacement of the aforementioned position of engagement.
2,, it is characterized in that narrow neck and frame structure that the 1st swivel arm and the 2nd swivel arm are made by frame (1) edge of making at synthetic resin are one according to the blattnerphone of claim 1.
3,, it is characterized in that outer toothed portion that the 1st neutral gear is meshed by the tep reel gear of using with capstan gear and high speed rotating and constitute with the coaxial internal tooth portion of this outer toothed portion according to the blattnerphone of claim 1; The 2nd neutral gear is made of 2 sections coaxial external tooth gears that constitute that are meshed with tep reel gear that above-mentioned internal tooth portion and low speed rotation are used respectively.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP304895/92 | 1992-10-16 | ||
| JP4304895A JP2689206B2 (en) | 1992-10-16 | 1992-10-16 | Tape recorder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1093823A CN1093823A (en) | 1994-10-19 |
| CN1043446C true CN1043446C (en) | 1999-05-19 |
Family
ID=17938582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN93117688A Expired - Fee Related CN1043446C (en) | 1992-10-16 | 1993-09-10 | Cassette recorder |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2689206B2 (en) |
| KR (1) | KR0164230B1 (en) |
| CN (1) | CN1043446C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3239801B2 (en) * | 1997-05-29 | 2001-12-17 | 松下電器産業株式会社 | Tape recorder |
| CN105536006A (en) * | 2015-12-31 | 2016-05-04 | 山东中保康医疗器具有限公司 | Filtration frame special for virus inactivation |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4527210A (en) * | 1981-05-25 | 1985-07-02 | Sony Corporation | Mode selecting mechanism for magnetic tape recording and/or reproducing apparatus |
| WO1990004250A1 (en) * | 1988-10-04 | 1990-04-19 | Kyowa Electric & Chemical Co., Ltd. | Driving mechanism of tape recorder |
| EP0395364A2 (en) * | 1989-04-27 | 1990-10-31 | Sony Corporation | A cassette tape recording and/or reproducing apparatus |
| US5063455A (en) * | 1989-02-07 | 1991-11-05 | Tanashin Denki Co., Ltd. | Mode selecting mechanism for a tape recorder |
-
1992
- 1992-10-16 JP JP4304895A patent/JP2689206B2/en not_active Expired - Fee Related
-
1993
- 1993-06-30 KR KR1019930012169A patent/KR0164230B1/en not_active IP Right Cessation
- 1993-09-10 CN CN93117688A patent/CN1043446C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4527210A (en) * | 1981-05-25 | 1985-07-02 | Sony Corporation | Mode selecting mechanism for magnetic tape recording and/or reproducing apparatus |
| WO1990004250A1 (en) * | 1988-10-04 | 1990-04-19 | Kyowa Electric & Chemical Co., Ltd. | Driving mechanism of tape recorder |
| US5063455A (en) * | 1989-02-07 | 1991-11-05 | Tanashin Denki Co., Ltd. | Mode selecting mechanism for a tape recorder |
| EP0395364A2 (en) * | 1989-04-27 | 1990-10-31 | Sony Corporation | A cassette tape recording and/or reproducing apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| KR0164230B1 (en) | 1999-03-20 |
| JP2689206B2 (en) | 1997-12-10 |
| CN1093823A (en) | 1994-10-19 |
| JPH06131747A (en) | 1994-05-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |