JPS58203655A - Pinch roll supporting mechanism - Google Patents

Abstract

PURPOSE:To increase the degree of freedom for design of other mechanisms provided on both upper and lower surfaces of a chassis and at the same time to realize a compact design of a video tape recorder, by shunting a pinch roll to the upper side of a tape loop which is drawn out. CONSTITUTION:A pinch roll 57 is set above the shift path of a tape guide before it is loaded and then set opposite to a capstan 58 when it is loaded. The roll 57 which holds a rotary shaft horizontally and above the tape guide path and then shunts before loading can be held horizontally by prescribing the positional relation between a hanging metallic parts 61 and a pulling metallic parts 63 for a holding metallic parts 59. When a pulling saft 70 is moved back, to parts 63 draws in rotary arms 62 and 62 to turn the parts 59. Thus the roll 57 is set opposite to the capstan 58. Then the arms 62 pull the parts 59 when the shaft 70 moves back further. Thus the lower part of the roll 57 touches first the capstan 58, then the whole part of the roll 57 is pressed to the capstan 58.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pinch roller pressing mechanism for a video tape recorder.

In video tape recorders, there are two ways to press the pinch roller to the capstan: one is to press the pinch roller to the capstan inside the cassette from outside the cassette, as in the VHS type, and the other is to press the pinch roller to the capstan inside the cassette, as in the β type. There are two methods: one is to press the tape after it has moved to the capstan, and the other is to enter the inside of the loaded tape loop and press it against the capstan outside the tape loop.The third method is to This has the advantage that the loading mechanism can be designed compactly, and various proposals have been made in the past. Utility Model Publication No. 51-9604 is an example of this; in the conventional pinch roller, the pinch roller support mechanism is arranged on the chassis side because the pinch roller stands up when loading is completed from a retracted position below the loading path. are doing. However, various components such as a loading mechanism and a capstan motor are usually arranged on the chassis side, and there is not enough room to arrange a pinch roller support mechanism. On the other hand, in current video tape recorders, there is ample space above the loose tape because the cassette holder is moved up and down, and especially in the case of front loading, there is sufficient space.

Therefore, the present invention proposes a new and effective pinch roller support mechanism for a video tape recorder in which the pinch roller support mechanism is disposed above the tape loop.

[Margin below]

The present invention will now be described with reference to the first dog embodiment.

The present embodiment employs a dl1M loading mechanism in which a toothed belt is used as an auxiliary transmission means and a pair of tape guides are rotated in opposite directions around a guide cylinder to load the tape. The configuration of each part will be explained item by item.
1 and the upright shaft (2a) of the guide roller (2) are planted and fixed on the guide block (3), and the upright shaft (2a) extending below the guide glock t3) has a driving glock (4).
) is supported. As shown in FIG. 2, this drive block 4) has a rank part (4a) that meshes with a toothed belt (to be described later) and a curved part (4b) on its back surface, and has a curved part (4b) formed on the back surface thereof. ) is placed on the bottom end of the removal stopper plate (5)
and the push-up spring (6), the guide block (3) is
) is biased towards. ) Therefore, the guide block (3) and drive block (4) are
-It is elastically pinched and guided.Although Figure 1 shows only one side of the tape dormitory (@collection side), there is a pair of tape guides, and the other side (supply side) The 1-jump guide has a nearly symmetrical shape, so illustrations and explanations are omitted, and in subsequent drawings, a dash will be added to the drawing number for each structural modification of the other j-jump guide. (B) Sag chassis configuration On the main chassis The subchassis that fixes the shilling (
7) Vi also functions as a guide in Deep East. Figures 6 and 4 show a half-open view and a bottom view of the sub-chassis (7), and as is clear from both figures, the sub-chassis (7) has a cylinder mounting hole (7a). and a pair of guide through holes (7bH7b') are formed, making it possible to install the cylinder and guide the tape. , da guide guide block during loading and unloading (
3) Top guide wall (7c) (7d) that defines the acceptable posture
A to-face kite u (yd bar'Id) is also formed between the outside of the do-face for mounting the toothed belt and guiding the drive block (4) (41). It's it
+The guide block tartar and the drive block t4
++4i is Mrr period 1 kite wall (7c) (/c')
(7d) (7d') is both kite hole (7
b') Thin wall part (7e) formed around the four sides of (7h') (
7e') will be slid on. Also, this thin part (
7e) (7e'), as shown in cross-section in FIGS. 5 and 6, respectively, have increased wall thickness near the loading completion position, and together with the push-up spring (6), the inside of the dormitory approaches the loading completion position. In addition, as shown in FIG. 7 VC, the F-to-V( of the sub-chassis I'l) is the rank 81≦( of the drive J/lock+atJ) of the block ta+t3J. 4a] (4a') non-stretchable toothed belt + 8) t81 is installed, and the 117th side of the toothed belt tacts) on the side that meshes with FJtJ kunkuri (4a) (4a') 's song Yuento Ei±
(f) - For the other parts, Iimasa's rollers (υ)...(υt...
7d')), and also
rl drive drive block) (snoring curved part (5h) (3b
') is also connected to the lower guide wall (7d l (7d') and 1f
II! Because it is guided without touching the belt, smooth rotation is possible.
(C1 tape guide regulation item rj) East inner block J31 is the inclined boss at the lowering complete γ position) +1ltli position #L
Figure 8 shows an exploded perspective view of the supply side Glock regulation means. 10'a) and LlII (10h') formed by bending the specified fitting U-way, and the elastic gold Muj held in the specified fitting Uη. For I Ll'a), adjust the mounting condition μ■1
In this case, the outer part of the kite elongated hole u'l>uz', the fixing screw hole 4, and the repair hole u-fft+j (, forming an adjustment notch u=J and temporarily fixing the specified metal fitting Uσ) 9) If you press the tip of the screwdriver against the missing uJ in a state of d-shrine control, the rotation will be ruled out by regulation. 'Also, Y411 Existence [Zhao (10
1)') is formed with a notch gu61 that allows the elastic protrusion (11a'J) of the elastic metal 4 (1j) to protrude.

Rivet the specified metal J44+η and the elastic metal fittings u+f (
As shown in FIG. 9, the supply side block regulating means, which is screwed at 160η', is fixed at a predetermined position of the sub-chassis (7) that stands up the guide planting bin U604.
Key in d! I is fixed. On the other hand, the winding-side block defining means has a shape that is almost symmetrical to the above-described supply-side block defining means as shown in FIG. Figures 11 and 12 show the process in which the guide block on the take-up side is defined, and the guide block on the take-up side approaches the loading completion position with its longitudinal direction along the guide hole (7b). Guide block (
3) Part of the inner corner (6a) of t:i is set according to the regulation 1i[
1 (10b) (see Fig. 11), and then the guide block (3) moves toward the loading completion position.
When the corner part (6a)
0b), and the longitudinal direction of the guide block (3) is defined along the regulation m (1ob). In this state, the other end of the guide block (3) is connected to the elastic protrusion (l).
1m), so the looseness at the specified time is eliminated.In addition, the adjustment of the specified fitting Qltlη can be made using the fixing screw l·1! with the master tape being played back. If you tighten the screwdriver slightly and engage the tip of the screwdriver with the adjustment notch Uωu, you will be able to displace the specified fitting ++Iauf.
jujuj is formed in an arc shape, and the specified metal fitting uo+
doi75-When displaced, the guide block +3) (3f
rotates around the support shafts (2a) (2'a) of the guide roller +2++2f at the loading position, and the tilted post tl) (IF rotates around the guide roller +2++2f, tilting the top of the guide cylinder. (D) Driving mechanism of tape guide means The toothed belt (8) (81 is installed as schematically shown in FIG. 7). The toothed belt (8) on the winding side is connected to the first tooth east t21) of the loading device, the J2 gear at the unloading position, and the sixth and fourth gears on the opposite side from the guide sill (2). Gear L! is mounted on the moat Q4J, and the toothed belt on the supply side (81 is also a rope, the fifth gear (c) in the ing position and the sixth gear 12 in the unloading position)
Q and guide shilling (2) and the 7th and 8th gears on the opposite side! ,! 7! Although not shown in Fig. 7, all gears other than the first and fifth gears ■υ(c) are supported on the main chassis, and the second and sixth gears ( 2a
(The shaft has each gear and another gear that rotates integrally with each other to maintain an interlocking relationship, and the first gear 1
21) by driving the double-toothed bell) ts>t
First, the first gear Qυ is pivotally supported on the short side of an abbreviated IP lever pivoted on the lower surface of the main chassis (C). (7) It is rotated integrally with the ninth gear Uυ of the gear. The ninth gear 6υ is in a meshing relationship with the tenth gear (33), and the distance between the shafts is kept constant by commonly supporting both gears on the lower surface of the second lever (2).Furthermore, the tenth gear C2 is the main chassis (2
), and both gears are commonly supported on the lower surface of the sixth lever (to). (To)
are in a connected relationship with each other, and even if the 11th lever (to) rotates, the 11th gear (b) and the 2nd gear υ maintain a meshing relationship. The eleventh gear 04) is integrated with a worm wheel (to), and the main chassis (
(to) is in meshing relationship with the worm gear 00 supported on the lower surface of the worm gear 00. Furthermore, the worm gear 67) rotates together with the main chassis (c) outer boob IJC1, and the pulley (
) is driven by a loading motor (M+ (shown in the figure)). is for tensioning the toothed belt (8), and a loading completion gamma detection switch (4I#, corresponding The clockwise rotation of the first lever is detected. Therefore, when the loading motor rotates in the forward direction and the quorum wheel (lrI) rotates clockwise, the first The gear 121) also rotates clockwise, and the rotation of the toothed belt (8) drives the drive block (4) in the loading direction. When the loading motor further rotates after reaching the end of the hole (7b) and the guide block (3) comes into contact with the regulating means, when the first gear shaft υ also rotates further, the first gear shaft υ Then turn the ship further, rotate the first lever clockwise against the bias of the first spring barge (17), close the loading completion switch 141, and turn off the loading motor. Therefore, in the loading completion report, the V61 spring 1.l JO biasing force tensions the toothed belt (8) and moves the guide block (3) between the specified surface (10b) and the elastic protrusion (ll
a) and press the first gear [F
]υ is the rotation of the loading motor, which is the worm gear (
37) and worm wheel: Because the transmission is through the wire, lJi after the rotation of loading Tanabata (goods) stops.
The rotation of the louvers does not cause the toothed belt (8) mentioned above to rotate on the kite cylinder side (on the inner side). However, there is a risk that the first gear CD in siJ and the toothed belt (8) may become uncoupled from each other on the opposite side (outside). Attach a guard (663) that defines the meshing of the toothed belt (8) to the feeding side (relaxation side) of the part where the toothed belt (toothed toothed belt) meshes with #tJ, and place it on the second lever (toward) marked 00. As described above, the second tooth 4L124 and the sixth gear (to) are in an interlocking relationship as schematically illustrated in FIG. 15, and both * * 122 ve are respectively downward 12th gear 14
11 and the 16th gear (42) are integrally molded, and by meshing the 12th gear (41) and the 6th gear (42), the rotation of the toothed belt (8) on the winding side is controlled. is transmitted to the toothed bell ZS) on the supply side. In addition, the toothed belt (8) on the take-up side tends to disengage on the pull-in side (relaxation side), and the toothed belt (8) on the supply side tends to disengage on the retraction side (relaxation side).
T! I), it is easy to disengage the gears, but since the lower guide walls (7d) (7'd) face the outer sides of the second and sixth gears, the meshing relationship can be maintained without providing a special gear F. Furthermore, the fifth gear (C) is supported on a fourth lever (4) which is pivotally supported below the main chassis 1, as shown in FIG. The 5th lever (44) in the shape of a letter is pivotally supported on the lower surface of the main chassis (to) and is in contact with the 1st N setting pin (44a) at one end, and the fifth lever (2) is in contact with the main chassis (to). The fifth gear 1 is tensioned with the toothed belt 81, and the toothed belt I8 is biased counterclockwise by the second spring 149 stretched between them. oil counterclockwise) 1 block].
4) in the loading direction Q, and guide the
b') and the elastic protrusion, guide block 1 to the arrangement (I I'a +
;3), and by the subsequent overstroke operation, as shown in FIG. 17, the 47th bar (4)
Rotate the row counterclockwise #J, and press the second stroke of 111 (・
The energizing force of one injection pushes the Sr+ guide block (:3) through the toothed bell 1 (8) into the OtI specified metal fitting tl.
The loading state is defined by attracting it to the lJi side. It should be noted that the toothed belt (81) on the supply side is swollen upon completion of loading and loosens from the nolinder secondary as the overstroke is absorbed. It is in a suspended state and there is no need to provide a curler on the opposite side of the belt (E) The tape pulled out from the transfer tape cassette of the tape guide on the supply side reaches the tape guide means on the supply side. Until then, it is necessary to detect the tension, erase the record information, and eliminate deep vibration, and it is necessary to bring the tension detection bottle and erasing head into contact with the tape. 41 in the original criminal case, as shown in Figure 9, the tension detection lever (4
6), erasing head (47), and impedance roller (1
1a is disposed on a sixth lever f41 which is rotatably supported on the main shaft 8'.
The lever (41) is rotated from the retracted position d to the contact position.

Figures 18 and 19 show the fourth lever (J and the sixth lever).
The lever (43) shows the lever mechanism, Figure 18 shows the rotating mode, and Figure 19 shows the prone position after loading.
The other end of the fifth lever 144J is a second fixed throw pin (4
4b) is arranged, the seventh lever (501 is in contact with the seventh lever (501), and the eighth lever (51) L is supported on the same shaft on the bottom surface of the seat. The seventh lever (the bent part (50a) of 501 and the eighth lever (
51) so that the shoulder part (51m) is in contact with v; 3 shots ts
g is stretched, and both levers are biased to rotate in opposite directions. The bent portion (51) at the tip of the eighth lever sail)
b) engages with the tip of the sixth lever (49) as shown in the side view of FIG.
It is made into Noh. Therefore, as shown in FIG. 18, when the fourth lever 1.44 is in the loading position, the eighth lever (49) defines the sixth lever (49) in the retracted position. , as shown in FIG. 19, upon completion of loading, the fourth lever (when 43 rotates to absorb overstroke, the eighth lever adjusts).
guides the sixth lever 4 to the tape contact position, so that the guide means on the sixth lever f41 and the tape guide means are kept out of contact during loading. The seventh lever and the eighth lever (51) are connected by the sixth spring, and the overstroke of the seventh lever group is absorbed by the sixth spring. The lever (to) is, as shown in FIGS. 20 and 21,
The fourth lever (41) is stretched between the main chassis (41) and the sixth lever (41) is elastically set to the retracted position. When the tape is rotated to the tape contact position as shown in Fig. 22 and Fig. 25, the tape pulled out from the cassette first contacts the tension ball (46 m) and is pushed counterclockwise by the fifth spring. When the tension detection lever throat rotates according to the tape tension, the tension detection lever (the tension detection bottle (4e) disposed at the other end)
46b) is displaced, the photoelectric conversion means arranged on the sixth lever (49) obtains a photoelectric conversion output corresponding to the displacement of the tension detection bin (46b), and the control force for the supply reel stand is controlled and extracted. While the tension of the tape is kept constant, the L-shaped locking metal fitting (65) arranged on the sixth lever in order to stop the other end of the fifth spring is located behind the fifth spring. The tip of the adjustment screw screwed into the cut-and-raised piece (49a) of 6 levers (4) is in contact, and the tension of the fifth spring wheel can be adjusted.

(F) Pinch roller pressure contact mechanism As shown in Fig. 9, the pinch roller before loading is positioned in the F direction of the tape guide movement path, and when loading is completed, it is opposed to the capstan. below,
The configuration of the pinch roller support mechanism will be explained with reference to the exploded perspective view shown in FIG. 24. In this embodiment, the pinch roller (5
A holding fitting that directly holds η, a hanging fitting 1) that suspends and supports this holding fitting by a pivot pin, and a rotating arm 1i2) that pivots one end of the holding fitting on both sides. The main constituent materials are a traction fitting (+4) that pivots the other end, and an aluminum die-cast support block - that supports the above-mentioned metal fitting, and a holding metal is also installed on the outside of the horizontal part of the support block. (51 hanging metal ring) and traction metal fitting are attached in this order.The vertical portion of the support block is fixed to the main chassis (to), and the horizontal portion is attached to the pivot pin (51).
A first elongated hole (64si) into which the guide bin is loosely fitted in the horizontal direction, a round hole (64b) into which the head of the aluminum die-cast capstan frame is fitted, and a second slot into which the guide bin is loosely fitted in the horizontal direction. The elongated hole (64c) and the hanging metal fitting (64c)
A square hole (6) accommodates the return spring slope 7) that returns the
46) and a guide plate for adjusting the pressure contact of the pinch roller.
The above-mentioned hanging metal fitting @l, which forms the main screw (64 and e9), is the pivot hole (61a) into which the above-mentioned pivot pin is fitted (61a gloss, the above-mentioned guide pin). A first elongated hole (61bJ (61b) into which the capsun frame is loosely fitted) and a second elongated hole (61c
) and a square hole (61e) having a cut and raised piece (61d) that comes into contact with the returning spring force. The towing metal fitting has a first pivot hole (6
5a) C65a), a long hole (65b) <65b) into which the pivot pin is loosely fitted, and the rotating arm portion 2) (62
) into which the other end of the traction shaft (65c) is inserted.
74 is fixed in the vertical direction, and the holding metal fittings←
The pivot hole (59a) (59a) into which the pivot gun is inserted is inserted.
9a). Therefore, the hanging metal fittings and the towing metal fittings are supported in the longitudinal direction of the horizontal part of the support block in a freely movable manner. This shows the pinch roller pressure contact mechanism after loading.

The μ-inch roller, which holds the rotating shaft horizontally above the tape guide path before loading and lowers the foundation, is fixed by defining the positional relationship between the holding fittings and the above-mentioned hanging fittings 1) and traction fittings. The traction shaft (70
) when the towing metal fitting (6) is moved backward, the rotating arm -
1 to rotate the holding fitting, and then
・The pinch roller (57) in this state in which the force of the pinch roller is opposed to the pushbutton also has a rotating base defined by the relative position of the traction metal fitting with respect to the hanging metal fitting 1). After that, when the traction shaft surface further retreats, the rotating arm 12) faces the pinch roller in parallel (see Fig. 26).
11 pulls the holding fitting, a part of the pinch roller first comes into contact with the capstan, and then the entire pinch roller comes into pressure contact with the capstan←8). As the lower metal fitting (61) moves backward against the bias of the return spring (67) and comes into contact with the guide plate, the position of the pivot pin is determined by the position of the force guide plate. Pinch Solar (6
7) is kept parallel to the capstan, but the suspension bracket J4 (61) and the traction bracket) are supported by a strong support block (6) that is also supported by the capstan frame (6). Since it is supported uniformly in the width direction of the horizontal portion of the cap 64, the pinch roller (57) that is pressed against it will not escape from the capstan and be pressed against it.

As is clear from Figure 9, the lfl guide plate is
The front end side is formed along the width direction of the support block, and the rear end side is formed obliquely with respect to the width direction along the end side of the support block.
A) is also formed diagonally. Therefore, the long through hole (
68m) and screw it into the #& screw (64e).
1111f [I fixed screw υl) is loosened and the guide plate is slid onto the support block←4), so that its front end moves forward and backward in the longitudinal direction of the support block, and the hanging metal fitting (6υ In addition, the traction shaft (3) is linked to the loading operation by a pinch roller drive mechanism. FIG. 27 shows this pinch roller drive mechanism. The rotation of the 16th gear (7
Transferred to 4I. On the other hand, a ninth lever 4 is pivotally supported on the main chassis 0 and is urged to rotate clockwise by a sixth lever. The shaft portion (77m) of the tenth lever υη is inserted into the through hole (75a) at the end of the ninth lever υ~.
The seventh lever (71 is stretched) so that both levers υ61 (771 has shoulder portions (75b) < 77b) are stretched, and the tenth lever (7η is connected to the seventh lever). νRepair (No. 10 above, which is biased counterclockwise relative to the
The lever υno has a large diameter protrusion (77c) that comes into contact with the cam part (74si) of the cam tooth*υ fat on the surface opposite to the shaft part (77m), and has a large diameter protrusion (77c) that comes into contact with the cam part (74si) of the cam teeth ) is loosely inserted into the through hole (77d), and an engagement notch (77d) is formed in the intermediate position to align the drive pin (see below).
Accordingly, according to this drive mechanism, the cam portion (74 m) is formed from the latter half of the loading operation.
), a tenth lever υη rotating around the pivot point of the ninth lever (b) guides the traction shaft 4 and causes the pinch roller η to face the capstan. 2 shows the pinch roller drive mechanism in the state where the pinch rollers are facing each other. It is clear from this figure
, nine solenoids H (
(see Fig. 9) is such that the drive pin (-) on the sliding iron core is opposed to the engagement notch (77e), and when the solenoid is energized in such a state, the drive pin 4 is activated. The tenth lever (7?) is engaged with the engagement notch (77e).
) is further rotated.Of course, the displacement of the drive pin 4 has an overstroke, and this overstroke causes the 9th lever Q and the 10th lever Uη to rotate as shown in FIG. It is elastically bent into a dogleg shape and urges the tenth lever (7'6) to rotate around the drive pin 4.

Therefore, the pinch roller @η is elastically pressed against the seventh spring (7F4).In the first embodiment described above, the guide block +a+t3f
The corners of the are rounded and aligned with the specified directions (11a) (ll'a), but depending on the machining accuracy of the corners, the specified plane (11a)
) (11'a) may not be able to slide smoothly.

In addition, in the first embodiment, the guide block +a)tai was defined as the loading completion position by defining one end of the guide block (3) (31 and elastically receiving the other end). When precision is required, it is preferable to specify the adjustment at two points, so in the second embodiment, a guide block different from that in the first embodiment is used in consideration of the two points mentioned above. This paper proposes a configuration of block specifying means.

In this embodiment, the guide block (3
) is provided with a rolling roller at the tip of the prescribed side, and the rolling roller is brought into rolling contact with the prescribed surface (10a) of the prescribed fitting while the guide block (3) is rotated, and the loading is completed. As shown in FIG. 61, the vicinity of the tip of the guide block on the prescribed surface side is set to
At the same time, the vicinity of the rear end on the specified surface side is brought into contact with the outer cylinder of the tapered nut (to), and the guide flock (3)
The above-mentioned over-shaped nut restraint) is defined by two points,
As shown in FIG. 62, the sub-chassis is screwed onto the force-setting screw and has a smaller diameter at the bottom. Therefore, when this tapered nut moves up and down in the screwed state, the guide The specified position of the block (3) is changed.In this embodiment, the specified fitting Q1 allows the guide block (3) to be attached to the support shaft (2a) of the guide roller (2) by loosening the fixing screw 4. The long hole of the guide is formed in an arc shape so that it can be adjusted by turning it around the center.Therefore, when making adjustments, it is necessary to complete the loading process while playing the -star tape. While spinning the taper nand, with the fixing screw α11 slightly loosened, engage the tip of a screwdriver in the adjusting notch (15) to rotate the specified fitting (1). After determining the rotational state of the guide block (3) without play so as to eliminate the twist of the tape that occurs between the guide cylinder and the inclined post and obtain the best reproduction output, finally, the fixing screw α■ This figure shows the guide rules for the guide block on the take-up side, but in this example, the supply side has a substantially symmetrical shape and the same guide rules will be applied. [Margins below] Therefore, according to the present invention, since the pinch roller is retracted above the tape loop being pulled out, compared to the conventional example in which the pinch roller is retracted below the tape loop, [2,
The degree of freedom in designing other mechanisms on the chassis surface and the bottom surface is increased, and the effect is great.

[Brief explanation of drawings]

Figures 1 to 29 show the first embodiment of the present invention. Figure 1 is a partially cutaway perspective view showing the support state of the tape guide, Figure WS2 is a perspective view of the drive block, and Figure @3 is a perspective view of the subchassis. The top view, and Figure 4 is the bottom view of the sub site! Figure 1!5 is the 6th
AA sectional view in the figure, FIG. 6 is a B-8 sectional view in the figure, FIG. 7 is an explanatory diagram of the toothed belt tensioned state, FIG.
FIG. 9 is an exploded perspective view of the regulating means, FIG. 9 is a plan view of the apparatus of this embodiment, FIG. 10 is an exploded perspective view of the supply side block regulating means, FIG. 11 is a plan view of the guide block before regulation, and FIG. 13 is a plan view of the toothed belt drive mechanism before loading, FIG. 14 is a plan view of the toothed belt drive mechanism after loading, and FIG. 15 is a plan view of the toothed belt drive mechanism after loading.
FIG. 16 is a perspective view showing the interlocking state of the gear and the sixth gear; FIG. 16 is a plan view showing the supporting state of the fifth gear before loading;
FIG. 7 is a plan view showing the support state of the fifth gear after loading, FIG. 18 is a plan view of the lever mechanism before loading,
Figure 19 is a plan view of the lever mechanism after loading,
0 is a plan view showing the supported state of the sixth lever, FIG. 21 is a side view of the same, and FIG. 922 is a plan view of the supply side guide means.
3 is a side view of the same, FIG. 24 is an exploded perspective view of the pinch roller support mechanism, FIG. 25 is a perspective view of the pinch roller support mechanism before loading, and FIG. 26 is a perspective view of the pinch roller support mechanism after loading. FIG. 27 is a perspective view of the pinch roller drive mechanism, FIG. 28 is a plan view of the pinch roller drive mechanism after loading is completed, and FIG. 29 is a plan view of the pinch roller drive mechanism after the pinch rollers are pressed together. 30 to 62 show a second embodiment of the present invention, FIG. 30 is a plan view before guide block definition, FIG. 31 is a plan view after guide block definition, and FIG. 32 is a plan view after guide block definition. The X-X# side view of each is revealed. Explanation of main drawing numbers (Foundation)...Support Pro/Tsuku, (Support)...Pinch roller, Group...Holding bracket, [11...Hanging bracket, Link/Traction bracket, Side...Traction Shaft, (to)...Capstan (--Fig. 6 Fig. 6 Fig. 1 Fig. p Fig. 1 48 Figure 7 4 Nautical Chart

Claims (1)

[Claims] (1) A support block in the shape of a letter that extends above the tape loop that is fixed on the chassis and whose tip extends above the pulled-out tape loop.
and a holding metal fitting that rotatably supports the pinch roller.
A hanging metal fitting (6υ) which pivots the upper end of the holding metal fitting and is slidably supported on the horizontal part of the supporting member 9; A traction fitting that is slidably supported on the horizontal part of the block.
and a traction shaft fixed to the traction fitting and movable to six positions, the pinch roller is held horizontally above the tape loop being pulled out at the first position of the traction shaft, and the second position of the traction shaft is held horizontally above the tape loop to be pulled out. A pinch roller support mechanism, characterized in that the pinch roller is arranged to face the capstan upright, and the pinch roller is brought into pressure contact with the capstan at a sixth position.