JPS5823353A - Tape loading for video tape recorder - Google Patents

Abstract

PURPOSE:To make the titled device small-sized, by providing a loading mechanism at a reel stand, interlocking the loading mechanism for the mode set cam at the reel stand and pushing out a loading blck at loading. CONSTITUTION:When the loading mode is set, a loading motor (not shown) is turned to drive shafts 28 and 26 via shafts 17 and 27 and gears 18-21. Arms 23a, 23b and 26a, 25b are bent or extended in interlocking with this drive and loading blocks 51 and 52 fitted to the tip of the arms are forwarded or reversed. The loading blocks 51 and 52 are provided with pins 55 and 63 titled by about 12 deg. and tape guides 54 and 62. Thus, the loading mechanism can be interlocked with the mode setting mechanism, allowing to make the device small-sized.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tape loading mechanism for a video tape recorder that utilizes a cam for mode setting.

A cassette-type video tape recorder requires a tape loading mechanism that pulls out the tape from the cassette and wraps it around the outer circumference of a guide cylinder, and is usually equipped with a loading motor. Further, this cassette type video tape recorder generally employs various lever mechanisms and a plurality of solenoids for mode setting.

The mechanism for setting this mode is almost the same as that of audio tape recorders, but audio tape recorders employ various mechanisms to set the desired mode by manually driving the mode setting cam or by driving a motor. has been done. When using this mode setting cam, the desired mode can be set simply by selectively driving a single mode setting motor, and there is no need for a solenoid, etc., and the mode can be set electronically. This is convenient when making settings, and since the mechanism is simple, it can be made smaller and the cost can be reduced.

Therefore, it is conceivable to adopt this mode setting cam in a video tape recorder, but as mentioned above, in the case of a cassette type video tape recorder, a loading mechanism must be installed, and a drastic simplification of the mechanism cannot be expected. .

In view of the above-mentioned points, the present invention is configured such that the loading mechanism is disposed on the reel stand side and the loading block is pushed out by the loading arm during loading in order to link the loading mechanism to the mode setting cam located on the reel stand side. The purpose of the present invention is to propose a new and effective tape loading mechanism for a video tape recorder.

[Margin below]

Hereinafter, the present invention will be explained according to an illustrative embodiment.

The first feature of this embodiment is that it is provided with a mode setting cam that switches modes by rotation.

This mode setting cam (force) stores the tape in the second position (Fig. 2 (a)), which is rotated 45° clockwise ζ from the first position (Fig. 1 (b)), which sets the stop mode. Set the fast forward' mode and rewind mode while keeping the position, and set the Bose mode upon completion of loading at the third position (Fig. 1 (C)), which is rotated 270' counterclockwise from the first position. The fourth position is rotated 45° counterclockwise from the third position [first
In Figure (d)], the pinch roller is pressed to set the recording mode and the reproduction mode. Also, this mode setting cam T
There is an idler regulation cam (1b) on the upper stage of the gear part (1a).
A spiral loading cam (1C) is formed on the lower surface of the idler regulating cam (1b), and a pinch roller moving cam (1d) is attached to the upper surface of the idler regulating cam (1b). An idler regulating lever (2) for regulating the movement of the tape winding idler is brought into contact with a troding completion detection lever (3), and a pinch roller moving lever (4) is brought into contact with the pinch roller moving cam (1d). and then the loading cam (1
c) has a loading pin (
5) are engaged. Therefore, in stop mode,
The idler regulating lever (2) enters the recessed portion of the idler regulating cam (1b) and is in the first position, thereby regulating the idler to the neutral position and pressing the brake shoe against the reel stand.

Further, in the fast forward mode and the rewind mode, the idler regulating lever (2) is disengaged from the recessed portion and is in the second position, releasing regulation of the idler. Furthermore, in the pause mode, the loading pin (5) is rotated clockwise to complete loading, and the pinch roller moving lever (4) is rotated clockwise to pinch the tape and cap the pinch roller. The idler regulation lever (2) is in the second position, and the loading completion detection lever (3) enters the recess of the idler regulation cam (1b) to detect the completion of loading and set the mode. Further, in the recording mode and the playback mode, the pinch roller moving lever (4) is further rotated clockwise to press the pinch roller against the capstan.

Each drive system will be explained below with reference to the drawings from FIG. 2 onwards.

First, as shown in FIG. 2, the drive system of the mode setting cam l is connected to the first support shaft (
7) rotatably supports the mode setting cam (1);
The first gear (9) is fixed to the F part of the second support shaft (8) through which the mark is inserted into the part of the gear (1a).
A double-sided second gear (IQl) fixed to the lower part of the second support shaft (8) is pivoted to a loading motor support plate (11) attached to the lower surface of the bottom board (6). A portion (12a) of the double gear of the third gear 02 is meshed with the portion (12a) of the spur gear of the third gear α2.
2b), the drive shaft of the loading motor αJ (13a
) is engaged with the fourth gear f141 that is integrated with the fourth gear f141. Therefore, the loading motor OJ is connected to the fourth gear ○a and the third gear which constitute a speed reduction mechanism.
The rotation is transmitted to the first gear (9) by the gear az, the third gear oz, and the second gear (IllI) that constitute a reduction and rotational axis changing mechanism, and the mode setting cam (1) The setting mode can be switched by the loading motor (13) which is driven in both directions.

Further, as shown in FIG. 3, the drive system of the loading mechanism includes a fan-shaped gear (+51) supporting the loading pin (5) that engages with the loading cam (1c) and the mode The setting cam (151 is interposed between the setting cam and the fan-shaped gear (151)
A loose fitting through hole (15a) is formed for the first support shaft (7) so that it can rotate with respect to the third support shaft 161 installed on the It meshes with a part of the small diameter gear (18a) of the fifth gear 08), and the sixth gear side and the seventh gear part mesh with the large diameter gear part (18b) of the fifth gear 08).1. The seventh gear (to) is further meshed with an eighth gear 211, the left loading arm is fixed to the first block @ integrally fixed to the sixth gear (191), and the eighth gear (21 ) is integrally fixed to the second block 1241, and the right loading arm is fixed to the second block 1241.

Therefore, while the mode setting cam (the loading cam (1c) rotates 270° from the first position to the third position)
guides the engaging loading pin (5) counterclockwise around the third support shaft (] 61 by gradually changing its diameter, and the fan-shaped gear (151) rotates counterclockwise. to rotate the first block device counterclockwise and the second block I24) clockwise, and move the later-described loading blocks attached to the ends of the left and right loading arms from the unloading position to the loading position. The loading cam (1c) rotates from the first position to the second position to fast forward or rewind the tape, and from the third position to the fourth position.
When the loading pin (5) is rotated to the position for recording and reproduction, the double-ended loading arm +23 (25) is rotated to maintain the loading pin (5) at the fixed position without changing its diameter.
is inactive. Further, the second block (foundation) and the eighth gear Q11 are connected to the fifth gear set up on the bottom board (marked)
The seventh gear (1) is pivotally supported on a support shaft (support), and the seventh gear (2) is pivotally supported on a sixth support shaft.
Gear a (g) has a cylindrical body (2) in the center that also penetrates the bottom substrate (6) in order to support a tension applying lever which will be described later.

Furthermore, as shown in FIG. 4, the reel drive system includes four pillars L on the lower surface of the base plate indicated by a dashed line.
29) Fix the reel motor ■ to the left side of the lower surface of the sub board fixed by ■311 +121, and its drive shaft (
A first connecting belt is attached to the first pulley (2) attached to the base plate 34a) and the second pulley attached to the lower part of the shaft country which is supported by penetrating the bottom board q) and the upper board described below. The rotation of the reel motor (341) is switched to three stages: normal rotation in recording/reproducing mode, high speed rotation in fast forward mode, and reverse high speed rotation in rewind mode.

Furthermore, as shown in FIG. 4, the capstan drive system includes a capstan motor 091 fixed to the lower right side of the sub-board (331), and a third boot IJ; , the flywheel boot fixed to the lower part of the capstan shaft (41) passing through the bottom board (marked and the top board)
+43) is installed. In addition, the drawing number 144) is the flywheel pulley (6 pillars on the bottom surface of 421 + 45) +
46) 147) + 48) 149) This is a rotation detecting body that is fixed by 421 and has a built-in rotation detecting means for the flywheel boot 421.

The configuration of the loading mechanism, which is the second feature of this embodiment, will be explained below with reference to the drawings from FIG. 5 onwards.

First, each of the loading arm devices has two temporary springs (23a) (23b) and (25a) (2sb).
are rotatably supported by coupling tools (23c) and (25c), and the overstroke during loading is prevented by the leaf springs (23a), (23b), (25a), and (25b).
It is absorbed by elastic deformation in the thickness direction. Furthermore, the loading blocks (51) +52 arranged at the ends of the double-ended loading arms have a substantially symmetrical shape, and one of the right loading blocks (9) rotates around the right loading arm □□□. A right side guide shaft (+13) that is movably supported, a right side movement guide joint that is fixed to the upper part of this guide shaft and that establishes a right side tape guide a and a right side inclined pin that is inclined at about 12 degrees; a right slider mark rotatably supported at the middle part of the guide shaft □□□ and forming a guide groove (57a) on its outer peripheral surface;
A right positioning arm (support) which is fixed to the lower part of the guide shaft and which will be described later is in circumferential contact with the idle rail and defines the rotational state of the right side moving guide table, and the right side positioning arm 1581 which is fixed to the lower part of the guide shaft. Each through hole (57c) (58
a), the end of which is inserted into the right side slider (571, and the right side coil spring 159 that urges the positioning arm (581 to rotate clockwise).Similarly, the left side loading block [Co., Ltd.] As illustrated in FIG.
631 and the left side moving guide stand (equipped with a space etc., the left side moving guide stand) stands up to the left side slider (631).
) is urged to rotate counterclockwise.

These loading blocks must pass through a narrow space from the unloading position to the loading position. Therefore, in this embodiment, as shown in FIG. 6, a right guide hole (66) for guiding the right slider region and a left guide hole for guiding the left slider (611) are provided on the upper substrate, respectively. The upper part of the slider is cut off to define a loading path of 5η times, and the bottom board +6 is formed as shown in FIG.
+ Right side guide rail outside of the upper loading path (Tai)
And left guide rail 16! Attach the II and make the right side positioning arm (support) and the left side positioning arm (not shown) circumferentially surround both guide rails tR81 (69), and during loading, the side movement guide stand (to) (the longitudinal direction of I is the loading path). avoids collision with components disposed close to the loading path along C1.Also, both movable guide tables 5+ that move on the upper surface of the upper substrate (
+641 changes the state of both the sliders (5η:611) at the loading position and the unloading position, and at the loading position, both the guide holes (@
When removing the button, use the positioning block 17t711, which also serves as a stop, to define the tape guide side of both movable guide stands i5?l+611, and adjust the specified position with the screw (72a).
(73a), the winding angle defining plate t7 adjustably abuts
21731 to define the inclined pin side, and at the unloading position, in order to define both the moving guide stands 671f61+ in the lateral direction in the figure, the right side moving guide stand 15η is connected to the left side moving guide stand at the storage defining metal fittings. (61) is defined by a storage regulation plate (751) z0 Therefore, both moving guide stands f571' 611 are fixed to the storage regulation metal fitting 741 and the storage regulation plate 5 at the time of unloading.
), and during loading, both the guide rails (sha)), and upon completion of loading, the positioning block 70) 7+1 and the winding angle defining plate [72
1731 defines its rotational state.

Further, as shown in FIG. 7, the pinch roller moving mechanism allows the pinch roller moving lever (4) that contacts the pinch roller moving cam (1d) to freely rotate around the seventh support shaft t7G+ of the bottom board +61h. At the same time, a pinch roller support lever (equipment) is also pivotally supported on the seventh support shaft (76), and an expansion spring is disposed between the pinch roller moving lever (4) and the pinch roller four. It absorbs the overstroke during crimping, and the rotation regulating pin (4) installed on the pinch roller moving lever (4) controls the expansion.
4a), and the pinch roller moving lever (4a)
) is fixed to an L-shaped lever (the edge thereof faces the pinch roller pressure detection switch 181). In addition, the pinch roller support shaft (77
a) In order to secure a moving path for loading and pinch roller crimping, a right side guide hole (82) is formed across the board. The part where the through hole +m+ !82+ intersects the right slider (5η is the right guide through hole C66
) The length of the right slider 6η is set to 1 minute so that the slider 6η can stably slide along the length of the slider 6η. Therefore, as is clear from the shape of the pinch roller moving cam (1d), the pinch roller 79) of this embodiment rotates in the second half of the loading period, that is, after the tape has been sufficiently pulled out, and the pinch roller 79) rotates to the capstan ( 41) and fell into pause mode,
When the recording mode or playback mode is switched, the tape is moved slightly to elastically clamp the tape, and this clamping is detected by the pinch roller pressure detection switch 181), and the power to the loading motor αJ is de-energized. .

Next, as is clear from FIGS. 4 and 6, the back tension applying mechanism consists of a rotary shaft in which a back tension detection arm for erecting a pack tension pin is inserted through the cylindrical body. □□□ and a cylindrical body around which the bottom board (a band (support) that reaches the lower end of the rotating shaft (b) that reaches the lower surface of the shaft) is fixed, and this band (861 is attached to the sub-board - An index spring (88) which fixes one end to the index spring (88) rotates and biases the back tension applying arm (equipment) in the counterclockwise direction, and an eighth support shaft is provided on the lower surface of the back tension detection arm (851). 18g
), the brake plate (91) comes into contact with the first movable pin field mounted on the back tension detection arm 1851.
A back tension applying lever is arranged to bring the brake shoe ■ placed on the supply reel into circumferential contact with the supply reel mark.
It is equipped with a tension release lever that is rotated counterclockwise by the support shaft (891 and has a tension release spring), and when unloading, the tension release lever is
a), rotate the pack tension applying lever (round) counterclockwise to completely separate the brake shoe (η), and then turn the first movable pin (sound) and turn the back tension detection lever (round). Rotate clockwise and hold the back tension pin (831) in the cutout of the cassette (not shown), and press the double-ended ding block f5.
11 (The second movable pin 1 planted on the first block @ at the timing when 521 almost reaches the loading position)
In order to rotate the tension release lever lq6+ clockwise, the back tension applying lever 194 is
1, the pack tension detection lever (84) reaches the loading position (i.e., back tension detection position) due to the biasing of the index spring, and the detection tension of the back tension pin (rotation) causes the pack tension detection lever (84) to reach the loading position (i.e., the back tension detection position). Braking force is applied to the reel stand (G).

Next, the idler mechanism includes an idler support lever (F) that is pivoted to the shaft (T) on the bottom board (φ), and an idler support shaft (T) on the top surface of the idler support lever name. A third movable pin alXl is planted on the lower surface of the planting, and the idler regulation lever (2) is rotationally biased by the regulation spring (101) as shown in FIG. (1b) and is in the stop mode, the idler regulating lever (2) has a notch (
The third movable pin 4 is engaged with the third movable pin 4 to restrict its rotation 1, and the idler support shaft (
99) is set at a neutral position, and the idler regulating lever (2) is in the seventh position.
As shown in the figure, when the idler regulating cam (1b) is in a mode other than the concave portion of the idler regulating cam (1b), the idler regulating cam (1b) is rotated counterclockwise, so that the idler (102) is free. The ninth gear (102) is rotated integrally with the nyafu N361 on the upper board Ill and meshes with the idler (102).
103), the idler gear (102) selectively meshes with a gear part (93a) of the supply reel pair, or a gear part (104a) of the take-up reel stand (104), and The rotation of the motor (2) is transmitted to both of the above-mentioned motors (104). The reel motor (to) switches the rotational direction in each mode of winding and fast forwarding, and decelerates the rotation in recording and reproducing modes, and the applied voltage is switched according to each mode.

Further, the reel braking mechanism interlocked with the idler regulating lever (2) is a braking part (105a) (
105b) to both the reel stands (104) and f! '13
The brake lever (105) is connected to the brake force applying lever (107) via a connecting plate (106).
), and its sliding direction is regulated by the ninth support shaft (10B), and the braking force applying lever (107
) is pivoted on a tenth support shaft (109) and the upper substrate (109)
A brake pin (110) that penetrates through the idler regulating lever (2) is loosely fitted, and only in the stop mode the brake portions (105a) and (105b) are connected to both the above-mentioned two-wheel coupling and ( 104).

In addition, the device of this embodiment is provided with four detection switches as shown in FIG. 7, in addition to the pinch roller pressure detection switch (8D), the loading completion detection lever (
a loading completion detection switch (111) that detects the completion of loading in conjunction with 3) and stops the loading motor OJ to set a temporary stop mode; and a loading completion detection switch (111) that detects unloading in conjunction with the idler regulation lever (2). an unloading detection switch (112) that stops the loading motor (1m) and sets the stop mode; A high-speed transfer mode detection switch (113) for stopping the rotation of the motor (131) and setting a fast forward mode or rewind mode is fixed on the upper substrate ji, respectively.

It controls rotation and stopping of the loading motor (13).

In addition, the tape guide mechanism, in the loading state, is guided by the members shown in FIG. guide pin(
ii), full-width erasing head (11/)), the left inclined pin of the left tape guide, the 10° inclined guide cylinder (117), the right inclined pin, the left guide pin (goods), audio control Signal recording/reproducing head ξ1
18), the second fixing is guided to the id pin (119), the capstan (41) and the pinch roller 79+ and reaches the cassette winding side.

In addition, the apparatus of this embodiment has a tape start end detection mechanism and a tape end detection mechanism of the same configuration on the tape supply side and the tape winding side, respectively, and the tape end detection mechanism is configured as shown in FIG. C) Supply side positioning guide (120)
is hollow in the axial direction, and a first
The light emitting member (12) fixed by the fixing fitting (121)
The light emitted horizontally by the supply side positioning guide (1)
20) is vertically reflected by the first reflecting member (123) disposed in A light detecting member (126) is arranged on the side of the cassette holder (125) on the opposite side of the tape (η) to reflect the light in the horizontal direction penetrating the tape running section, and detects the passage of the tape at the end of the tape into the cassette. The light detection member (12) arranged on the side of the holder
6). In addition, figure number (127) in Figure 9
is a holder for the light emitting member (122), and (128)
is a holder for the photodetecting member (126), (129) in FIG. 8 is a winding side positioning guide, and (130)
indicates the second fixture.

The operation of the apparatus of this embodiment will be explained below for each mode.

(a) Stop mode This mode is a mode in which the cassette can be attached and detached, and when the cassette is attached, the tape is stretched on the front surface of the cassette while the tape guides (541+, 621, both inclined pins 1ti31f551, the pinch roller a (g)
The brake lever (105) is in an unloading state in which the back tension pin blade (and the back tension pin blade) is inserted into the cassette notch, and the brake shoe (η is in a non-contact state) applies the desired tension, but the brake lever (105) is not in contact The parts (105a) and (105b) are both the above-mentioned two-wheel stand j931.
The idler (102) is in pressure contact with the circumferential surface of the idler (104) to restrict the running of the tape, and the idler (102) is defined at a neutral position. This unloading state is detected by the unloading detection switch (112), and when setting the stop mode from another mode, the rotation of the mode setting cam is stopped by this detection output.

(b) High-speed transfer mode This mode is a mode in which the tape is stretched at the front of the cassette in an unloaded state and the tape is moved at high speed. Therefore, the mode setting cam (1), which rotates clockwise from the first position by the mode setting operation, connects the tip of the idler regulation leno<-+21 to the idler regulation cam (
1b) and rotated 45 degrees, and the rotation was stopped by the detection output of the high-speed transfer mode detection switch (113). By rotating the idler regulation lever (2), the idler (102) is released from regulation, and the rotation of the reel motor (to), which is driven at high speed at the same time as the mode is set, swings in one direction according to the set mode. , one reel stand is driven at high speed.

(C) Pause mode This mode is a mode in which the tape stretched inside the cassette is pulled out, loaded, and timed for recording and playback. Therefore, the mode setting cam (〃) which rotates counterclockwise from @1 position 2 is the loading cam (1
guide the loading pin (5) that engages with the idler cam (1) to operate the loading mechanism;
b) The idler regulating cam (2) that engages with the above releases the braking on both reel stands f631 (104) and the regulation of the idler (102) to the neutral position, and in the latter half of loading, the pinch roller The third pinch roller (791) is rotated 270' by the moving cam (1d) to face the capstan (41).
When the loading completion detection switch (111
) The rotation is stopped by the detection output. On the other hand, the rotation restriction of the back tension applying lever (circle) is released by the second movable pin (the tension release lever is closed) which rotates counterclockwise with loading,
In the latter half of loading, the back tension detection arm (841) is rotated.Also, the back tension detection arm (841) is rotated during loading. ) (+' on both tape guides (115) (119) etc. facing the surface.
By rotating both the moving guide stands 15611641 with respect to the sliders 15η161) without causing the moving guide stands 1561:64) to collide with each other, the longitudinal direction of the moving guide stands 1561:64) is aligned with the guide through holes +ee:67.
).

At the loading completion position, both the positioning blocks (to) 1 and the adjustable regulating plate f72) for both winding materials 731
positioning the movable guide stand %l;61 by;
Leaf springs (23a) (23
b) The overstroke of loading is absorbed by the elastic deformation of (25a) and (25b), and the tape wound around the guide cylinder (117), which is inclined at 10 degrees to the left in the figure, has a winding angle of The tilting pins (55+1631) tilt approximately 12 degrees to the left in the figure, and are adjustable. In this pause mode, the cap rotates at the same time as loading starts to ensure a smooth start of recording and playback. The stun motor and head motor (not shown) continue to rotate.

(d) Recording and reproducing mode: This mode is a mode in which the tape is run at a constant speed in a loaded state. The specific operation is to press the pinch roller 1, and during the mode setting cam which rotates further counterclockwise from the third position depending on the mode setting, the pinch roller moving cam (1d) moves the pinch roller 1 into pressure contact with the pinch roller 1. The moving lever (4) is further rotated to bring the pinch roller σ (g) into pressure contact with the capstan, and the rotation is stopped at the fourth position rotated by 45 degrees based on the detection output of the pinch roller pressure contact detection switch (81). The overstroke of the pinch roller moving lever (4) is achieved by the expansion spring q81 interposed between the pinch roller support lever surface and the pinch roller support lever surface.

On the other hand, the take-up reel stand (104) is connected to the pinch roller glaze and the capstan by transmitting the rotation of the reel motor (to), which is driven at low speed at the same time as the mode setting, through an swingable idler (102). (41) winds up the tape that is transferred at a constant speed.

[Margin below]

Therefore, according to the present invention, since the loading mechanism is linked to the mode setting mechanism and disposed on the reel stand side, the space on the back of the guide shilling is eliminated compared to the conventional example in which an arm having a connecting part is pulled on the back of the guide shilling. This makes it possible to downsize the device, which has great effects.

[Brief explanation of the drawing]

Each of the figures shows a mechanism according to an embodiment of the present invention. Fig. 1 shows the state of engagement of the lever according to the rotational position of the mode setting cam, and Fig. 2 shows the drive mechanism of the mode setting cam. 6 is a plan view showing the loading mechanism, FIG. 4 is a plan view of the bottom surface of the bottom board, FIG. 5 is a partially cutaway perspective view of the right loading lock, and FIG. 6 is a plan view of the upper board. Fig. 7 is a plan view of the bottom board in recording/reproduction mode, Fig. 8 is a plan view of essential parts of the bottom board in stop mode, and Fig. 9 is a sectional view of the tape start/end detection section. . Explanation of main drawing numbers +1)...Mode setting cam, ++Sai...Loading motor, σ9)...Pinch roller, (+02)...Idler, (231125) Loading arm s (
51) i52)・Loading block Figure 1 (a) FF / Rew (C) PAUSE (b) 5TOP (d) PLAY/RFC Figure 2 Figure 3 Figure 4 Figure 6 Figure 7 Figure 2 Figure 8 -29. Figure 9 Proceedings Amendment (Method) March 1980 q Mr. Nikkaku, Commissioner of the Patent Office 1, Indication of the case 1982 Patent Application No. 130972 2, Name of the invention Video tape recorder tape a -Ding mechanism 6, person making the amendment Patent applicant Address: 2-18, Keihan Hondori, Moriguchi City Name (188) Sanyo Electric Co., Ltd. Representative: Kaoru Iue 4, Agent address: 2-18-5, Keihan Hondori, Moriguchi City , Date of amendment order (shipment date) February 23, 1982 6. rMi diagram of the drawing subject to amendment 0 B Contents of amendment as shown in the attached sheet. Figure 1(a)

Claims (1)

[Claims] (1) A mode setting in which a pinch roller moving cam that moves the pinch roller, an idler regulation cam that regulates the idler, and a loading cam that displaces the loading pin are each integrally molded and selectively rotated by the loading motor. A cam and a loading mechanism that actuates a pair of loading arms having a connecting portion as the loading bin is displaced are respectively disposed near the reel stand, and when loading starts, the loading mechanism that operates a pair of loading arms disposed at the tip of the loading arm when loading starts. A tape loading mechanism for a video tape recorder, characterized in that the loading block is configured to be pushed out in the loading direction.