JP3095675U - Pinch roller support structure of video cassette recorder - Google Patents

Abstract

(57) [Problem] To generate a moment for effectively fixing a pinch arm to a chassis by a biasing force of a spring for bringing a pinch roller into contact with a capstan,
Provided is a pinch roller support structure of a video cassette recorder capable of shortening an arm axis. A rotation support point (P1) between an arm shaft (16) and a bearing (a circular hole (15d)) of a pinch arm (15) in a direction perpendicular to a chassis (1) is spring-loaded between a bearing structure (20) of a pinch roller (8) and a pinch arm (15). The pinch arm 15 is positioned between the arm support portions 15a and 15b in a direction perpendicular to the chassis 1 by a force of the tension coil spring 17 and is rotated between the two arm support portions 15a and 15b. Generate a moment.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

  The present invention relates to a pinch roller support structure for a video cassette recorder (VCR). It

[0002]

[Prior art]

  Conventionally, in order to properly press the pinch roller to the capstan, various pins are required. A cantilever support structure has been proposed. According to the patent document 1 by the applicant A conventional pinch roller support structure is shown in FIG.

[0003]   As shown in FIG. 4, a bearing 115d is provided near the first end of the pinch arm 115. Is provided and is fitted to the arm shaft 116 vertically planted in the chassis 101. , Is rotatably supported. A pinch is provided near the second end of the pinch arm 115. A roller shaft 119 is planted perpendicularly to the main surface 115f of the arm 115, The pinch roller 8 is rotatably supported on the roller shaft 119.

[0004]   The pinch roller 8 is equipped with a self-aligning function, and the pinch roller 8 and the bearing are The clearance between the pinch roller 8 and the center of the roller shaft 119 On the other hand, it swings as shown by arrow B. As a result, the roller shaft 119 is capstan Even if it is tilted with respect to 7, the tilt is absorbed by the swing of the pinch roller 8. The cylindrical outer peripheral surface of the pinch roller 8 is closely attached to the outer peripheral surface of the capstan 7. To wear.

[0005]   At the second end of the pinch arm 115, an arm support 115a is provided on the chassis 101. It is formed by bending at a right angle to the side and can contact the upper surface of the chassis 101. is there. A spring hook 115 is provided between the first end and the second end of the pinch arm 115. c is formed by being bent at a substantially right angle on the side opposite to the chassis 101. The tension coil spring 117 is engaged. Therefore, the pinch arm 115 is The spring 117 so that the pinch roller 8 rotates in the direction of contacting the capstan 7. More energized. The biasing force of the spring 117 is indicated by F11.

[0006]   The bearing portion 115d is parallel to the main surface 115f via the vertical wall portion 115g. It is provided on the ceiling part 115h that is bent like Is located at almost the same height as the bearing 20 of the pinch roller 8 in the vertical Z direction. It With such a configuration, in a plane perpendicular to the chassis 101 (parallel to the Z direction) (In a plane), the arm shaft 116 and the bearing portion are urged by the urging force F11 of the spring 117. Rotate the pinch arm 115 counterclockwise around the fitting portion P11 with the 115d. A turning moment is generated, and the arm supporting portion 115a comes into contact with the chassis 101. It At a contact point P12 between the arm supporting portion 115a and the chassis 101, a point P1 A pressing force F12 orthogonal to the line connecting 1 and P12 is generated, and the pinch arm 1 15 is effectively fixed to the chassis 101, and the pinch roller 8 is stably rotated. As a result, the running of the magnetic tape is stable.

[0007]

[Patent Document 1]           Specification of Utility Model Registration No. 3076573 (Fig. 1, paragraph 0014)

[0008]

[Problems to be solved by the device]

  As is clear from FIG. 4, in the conventional pinch roller support structure described above, particularly the arm is used. Since the shaft 116 becomes longer and the pinch arm 115 becomes taller, dead space is increased. Occurs and the degree of freedom in design decreases. Also, the arm shaft 11 Since 6 is formed by cutting a round bar and is fixed to the chassis 101 by caulking, However, this causes an increase in assembly cost, material cost, and component weight.

[0009]   The present invention has been made to solve the problems of the above-mentioned conventional example. Similar to the conventional pinch roller support structure, the pinch roller is brought into contact with the capstan. The urging force of the spring to rotate the pinch arm, The pushing force to effectively secure the Shorten the height of the pinch arm to reduce the occurrence of dead space and install it. Greater flexibility in accounting, lower assembly costs, material costs, and component weight To provide a pinch roller support structure for a video cassette recorder capable of reducing It is an object.

[0010]

[Means for Solving the Problems]

  To achieve the above object, the device according to claim 1 is provided substantially perpendicular to the chassis. Between the capstan that is rotated by the driving force of the motor and the capstan By sandwiching the magnetic tape and pressing the magnetic tape against the capstan, Self-alignment for running the magnetic tape at a predetermined speed as the capstan rotates Pinch roller with a possible bearing structure, and the pinch roller can be freely rotated at one end A roller shaft that is axially supported is planted in the A pinch arm rotatably supported around a shaft and a roller shaft. Rotate the pinch arm in the direction to bring the pinch roller into contact with the capstan. The tension coil spring for generating rolling force and the rotation position of the pin charm are In addition to controlling the pinch against the biasing force of the tension coil spring, To rotate the pinch arm in a direction that moves the roller away from the capstan The structure for supporting the pinch roller of a video cassette recorder with the cam lever of The arm shaft by cutting out a part of the chassis in a substantially U shape, The pinch arm is formed by bending it at a substantially right angle to the stun side. At two locations near the roller shaft, substantially perpendicular to the main surface of the pinch arm, In addition, two arms that are formed by bending to the chassis side and that can contact the chassis. At the intermediate portion of the arm support and the roller shaft and the arm shaft, Formed at a substantially right angle to the main surface of the chassis and bent toward the chassis, Engage with the arm shaft and a spring hook portion with which one end of the tension coil spring is engaged. The bearing portion is in contact with the cam lever to receive the rotational force of the cam lever. The tension coil spring is substantially horizontal to the chassis. One end of the pinch arm is engaged with the spring hooking part of the pinch arm and the other end is It is engaged with a spring hook provided on the cam lever and is perpendicular to the chassis. In the direction, the rotation fulcrum between the arm shaft and the bearing portion of the pinch arm is Located between the bearing structure of the pinch roller and the spring hook portion of the pinch arm However, the urging force of the tension coil spring causes an in-plane perpendicular to the chassis. In the direction in which the two arm supports contact the chassis. Generate a moment to rotate.

[0011]   According to this structure, the moment generated by the urging force of the tension coil spring The pinch arm rotates in a plane perpendicular to the chassis, System support contacts the chassis and the pinch arm is effectively locked to the chassis. It As a result, the rotation of the pinch roller is stabilized and the running of the magnetic tape is stabilized. You can In addition, the arm axis can be shortened compared to the conventional structure, Since the pitch arm is short, the occurrence of dead space is reduced and design freedom The degree can be increased. Also, cut the arm shaft into a U-shaped chassis. Since it is formed by bending it at a right angle to the capstan side, the round bar has a specified shape. It is not necessary to crimp the shaft formed by cutting to the chassis, which reduces assembly costs and It is possible to reduce the cost of parts and the weight.

[0012]   The invention of claim 2 is that the driving force of the motor is provided substantially perpendicular to the chassis. The magnetic tape is sandwiched between the capstan that rotates with the capstan and the capstan, Rotation of the capstan by pressing a magnetic tape onto the capstan With this, a bearing structure capable of self-centering for running the magnetic tape at a predetermined speed A pinch roller that has, and a roller shaft that rotatably supports the pinch roller at one end. Is planted and rotated about an arm axis that is installed substantially perpendicular to the chassis. The pinch arm that is axially supported and the pinch roller that is axially supported by the roller shaft. A rotational force of the pinch arm is generated in the direction of abutting the capstan. Against the rotational force of the tension coil spring and the tension coil spring, Rotate the pinch arm in a direction to move the pinch roller away from the capstan. Pinch roller support for video cassette recorder with cam lever for In the structure, in the direction perpendicular to the chassis, the arm axis and the The rotation fulcrum of the pinch arm with respect to the bearing section is the same as the bearing structure of the pinch roller. A spring hook portion that receives the pulling force of the tension coil spring of the pinch arm Between the chassis and the urging force of the tension coil spring with respect to the chassis. A method in which the roller shaft side of the pinch arm contacts the chassis in a vertical plane. Generate a moment to rotate in the direction.

[0013]   According to this structure, the moment generated by the urging force of the tension coil spring The pinch arm rotates in a plane perpendicular to the chassis, System support contacts the chassis and the pinch arm is effectively locked to the chassis. It As a result, the rotation of the pinch roller is stabilized and the running of the magnetic tape is stabilized. You can In addition, the arm axis can be shortened compared to the conventional structure, Since the pitch arm is short, the occurrence of dead space is reduced and design freedom The degree can be increased. Also, because the arm axis is shortened, parts cost is reduced. It is possible to reduce the weight and the weight.

[0014]   The invention of claim 3 is the pinch roller of the video cassette recorder of claim 2. In the support structure, the arm shaft is formed by cutting out a part of the chassis in a substantially U shape. And is formed by bending the capstan side at a substantially right angle. To do.

[0015]   According to this structure, the shaft formed by cutting the round bar into a predetermined shape is attached to the chassis. Eliminates the need for caulking, reducing assembly and component costs and weight Can be planned.

[0016]

[Embodiment of device]

  An embodiment of the present invention will be described below with reference to the drawings. This embodiment FIG. 1 shows the overall configuration of the video cassette recorder 100 according to the present invention. Video cassette The recorder 100 uses a videotape (not shown) on a video cassette Voice recording / reproduction is performed.

[0017]   The chassis 1 is formed by bending a metal plate. The rotary drum 2 is a rotary shaft. 21 is attached to the main surface 1a of the chassis 1 in a state of being inclined at a predetermined angle. By a video head motor (not shown), the rotary shaft 21 is rotated in the circumferential direction. It is rotationally driven. Recording / playback of video signals to / from the magnetic tape on the rotating drum 2 A video head (magnetic head) 2a is provided for performing the It is rotated along the outer peripheral surface. Furthermore, on the chassis 1, the image is displayed on the magnetic tape. To erase the signal already recorded on the magnetic tape when recording the image signal Full-width erasing head 2b, recording / playback of audio signals to / from magnetic tape, and control A voice / control head 2c for recording / playback Has been.

[0018]   Furthermore, in the vicinity of the rotating drum 2, on the chassis 1, the magnet from the video cassette is The magnetic tape is pulled out and the magnetic tape is guided around the rotating drum 2. A loading side loading post 3a and a winding side loading post 3b. Of the loading post 3 and the loading side loading post 3a and the video cassette A tension post 4 is provided to apply tension to the magnetic tape between It The tension post 4 is a tension lever rotatably supported on the chassis 1. It is planted on the -5 and is moved by the rotation of the tension lever 5. Also Guide the running of the magnetic tape between the tension post 4 and the video cassette. A tape guide 6 is provided for this purpose.

[0019]   The rotating reel stand 10 rotates a reel (not shown) of a video cassette. And comprises a supply-side reel stand 10a and a take-up reel stand 10b. Supply these The side reel stand 10a and the take-up reel stand 10b are powered by the capstan motor described above. Is rotated by various drive transmission mechanisms (not shown), and the rotational force causes the vibration to occur. Rotate the reel of the deo cassette. In the vicinity of the supply-side reel stand 10a, reels Brake arm 11 and band brake 12 for braking the platform 10a Etc. are provided.

[0020]   The capstan 7 applies a pulling torque to the magnetic tape to drive the magnetic tape. It is made of a shaft-shaped member perpendicular to the main surface 1a of the chassis 1. Cat The push-stan 7 is provided on the back side of the main surface 1a of the chassis 1 around the axis thereof. It is driven to rotate by a capstan motor (not shown), and its rotational force is transferred to a magnetic tape. Transmit and drive the magnetic tape. The pinch roller 8 works together with the capstan 7. The magnetic tape is driven by the magnetic tape, and is provided on the main surface 1a of the chassis 1. It is provided on a pinch arm 15 that is pivotally supported about an arm shaft 16. There is. The pinch roller 8 is rotated by the pinch arm 15 so that the magnetic tape The cap is pressed against the capstan 7, which causes the rotational force of the capstan 7 to be magnetized. The magnetic tape is run by transmitting it to the tape. Pinch arm 15 The coil spring 17 that generates a driving force for rotating the arm 15 in a predetermined direction is engaged. Has been done. Further, in the vicinity of the pinch arm 15, the rotational position of the pinch arm 15 A cam lever 18 for controlling the position (the turning position of the pinch roller 8) is provided. There is. Details of the pinch roller 8 and the pinch arm 15 (support structure for the pinch roller 8 ) Will be described later.

[0021]   The review post 9 is a magnetic tape between the capstan 7 and the video cassette. Tension is applied to the main surface 1a of the chassis 1 with the shaft 91 as the center. It is erected on a review arm 92 that is pivotally supported. This review post When the review arm 92 is rotated, the cap 9 and the video camera 9 are rotated. Push the magnetic tape so that it bypasses the travel path of the magnetic tape between the set and This applies tension to the magnetic tape.

[0022]   With such a configuration, the magnetism of the video cassette set on the rotary reel stand 10 is The air tape is pulled out from the video cassette by the loading post 3 and rotated. Guided to be wound around the ram 2 and loaded by the tension post 4. Tension is applied between the post 3a and the video cassette. Also, the magnetic tape Is pressed against the capstan 7 by the pinch roller 8 and the review post 9 Tension is applied between the capstan 7 and the video cassette. this At this time, the magnetic tape is brought into contact with and guided by the tape guide 6, and the full width erasure is performed. The head 2b and the voice / control head 2c are brought into contact with each other. And , The magnetic tape is driven by the rotation drive of the capstan 7, the recording of video / audio, Various operations such as playback, fast forward playback, reverse rewind playback, fast forward and rewind of magnetic tape Done. The tension on the magnetic tape by the tension post 4 is ・ Voice recording, playback, fast forward playback, reverse playback Canceled during fast forward / rewind operation. In addition, the magnetic tape by review post 9 Tension is applied to the video / audio fast-forward playback and reverse-back playback operations. It is canceled in other operations.

[0023]   Next, details of the support structure of the pinch roller according to the present embodiment are shown in FIGS. You 2 is a front view showing the support structure of the pinch roller 8, and FIG. 3 is a plan view thereof. is there.

[0024]   The arm shaft 16 is formed by cutting the chassis 1 made of a metal plate into a substantially U shape. The part that was open is not perpendicular to the chassis 1, that is, parallel to the capstan 7. Thus, the capstan 7 is bent substantially at a right angle. Pincher A circular hole 15d is provided in the vicinity of the first end of the frame 15, and the plate-shaped arm shaft 16 It functions as a bearing portion by engaging with the notch portion provided in the. for that reason , The pinch arm 15 is centered on the contact point P1 between the circular hole 15d and the arm shaft 116. Then, it is rotatably supported. According to the configuration of the present embodiment, the round bar is cut and shaped. Compared to the general structure with the shaft formed and the bearing formed by cutting the pipe, the gap Is large, the main surface 15f of the pinch arm 15 is left as it is. It cannot be held substantially parallel to a. Therefore, near the second end of the pinch arm 15. Beside it, two arm support portions 15a and 15a capable of contacting the main surface 1a of the chassis 1 are provided. b is formed by bending the chassis 1 side at a substantially right angle. Pinch arm 1 5 is two arm support portions 15a and 15b, a circular hole 15d, and an arm shaft 116. It is held practically on the chassis 1 by the bearing part according to. In addition, pinch When the arm 15 rotates around the arm shaft 16, the arm support portions 15a and 15b May slide on the main surface 1a of the chassis 1, but there is no practical problem.

[0025]   A spring hook 15c is provided between the first end and the second end of the pinch arm 15 as a pin. Formed by bending to the chassis 1 side at a substantially right angle to the main surface 15f of the chain arm 15. Is made. The tension coil spring (hereinafter, simply referred to as “spring”) 17 is a shear coil spring. One end of the pinch arm 15 is spring-loaded so that it is substantially horizontal to the chassis 1. 15c and the other end is engaged with a spring hook portion provided on a cam lever 18 described later. Have been combined. Therefore, in the pinch arm 15, the pinch roller 8 has a capstan. It is biased by a spring 17 so as to rotate in the direction of contacting 7. Spring 17 The biasing force due to is indicated by F1. As can be seen from FIG. 2, from the biasing force of the spring 17, , Engage the circular hole 15d of the pinch arm 15 with the notch of the plate-shaped arm shaft 16. The pinch arm 15 is disengaged from the arm shaft 16 because a component force that acts in the direction of It has a piling structure.

[0026]   In the vicinity of the second end of the pinch arm 15, with respect to the main surface 15f of the pinch arm 15, A roller shaft 19 is planted substantially vertically, and the pinch roller 8 rotates around the roller shaft 19. It is rotatably supported. As with the conventional example, the pinch roller 8 has an automatic centering function. Is provided, and by the clearance between the roller shaft 19 and the bearing 20, The pinch roller 8 swings with respect to the center of the roller shaft 19 as shown by arrow B. So As a result, even if the roller shaft 19 is tilted with respect to the capstan 7, the tilt Can be absorbed by swinging the pinch roller 8, and the cylindrical shape of the pinch roller 8 can be absorbed. The outer peripheral surface is in close contact with the outer peripheral surface of the capstan 7.

[0027]   As shown in FIG. 3, the pinch arm 15 is provided with an abutting portion 18 a of the cam lever 18. A contact portion 15e for contacting and receiving the rotational force by the cam lever 18 is provided. There is. When the pinch roller 8 is in close contact with the capstan 7 and is rotated, the cam is Rotate the lever 18 further clockwise than the state shown in FIG. The contact portion 18a of the pinch arm 15 is separated from the contact portion 15e of the pinch arm 15. Meanwhile, the pin To release the chiller 8 from the capstan 7, rotate the cam lever 18 in the direction of arrow C. Let Then, the contact portion 18a of the cam lever 18 contacts the pinch arm 15. Since it abuts against the portion 15e and pushes it in the direction indicated by arrow E, the pinch arm 15 It rotates in the direction indicated by the arrow D against the rotational force of the spring 17. As a result, the pin The chiller 8 separates from the capstan 7.

[0028]   As can be seen from FIG. 2, in the plane perpendicular to the main surface 1a of the chassis 1 (Z direction). At the rotation of the arm shaft 16 and the bearing portion (circular hole 15d) of the pinch arm 15 The pivot point P1 is such that the bearing structure 20 of the pinch roller 8 and the pinch arm 15 are spring-loaded. It is located between the portion 15c or the point of action P3 of the urging force F1 by the spring 17. That Therefore, due to the urging force F1 of the spring 17, in a plane perpendicular to the main surface 1a of the chassis 1. , The pinch arm 15 with respect to the rotation fulcrum P1 and two arm support portions 15a and Moment for rotating 15b in the direction in which it contacts the chassis 1 (direction shown by arrow A) Occurs. This moment causes the pinch arm 15 to rotate, supporting the arm. When the parts 15a and 15b contact the chassis 1, the arm shaft 16 and the pinch arm 1 5, the fulcrum P1 of rotation with the bearing portion (circular hole 15d), the arm support portion 15a, and the shear A pressing force F2 that is orthogonal to the line connecting the contact point P2 with S1 is generated, The holding portion 15a is pressed against the chassis 1, and the pinch arm 15 is attached to the chassis 1. Is effectively fixed. This pressing force F2 is pinched onto the rotating capstan 7 Is larger than the reaction force that the pinch roller 8 receives from the capstan 7 when the roller 8 contacts. The pinch roller 8 comes into close contact with the capstan 7 and is rotated by The running of the air tape is stable.

[0029]   As described above, according to the support structure for the pinch roller of the present embodiment, the sub-roller shown in FIG. Compared with the conventional structure, first, the arm shaft 16 can be shortened, and the pinch arm can be shortened. Since the height of 15 is short, the occurrence of dead space is reduced and the degree of freedom in design is increased. You can ask. In addition, the arm shaft 16 is directly attached to the chassis 1 in a substantially U-shape. Notched and bent at right angles to form a round bar cut into a predetermined shape It is no longer necessary to crimp the assembled shaft to the chassis 1, which reduces assembly and component costs. It is possible to reduce the weight and the weight.

[0030]   It should be noted that the present invention is not limited to the above embodiment, and various other modifications are possible. It For example, the arm shaft 16 is formed by cutting a round bar in the same manner as in the conventional case, and is attached to the chassis 1. You may crimp and fix. Even in that case, as compared with the conventional example shown in FIG. Since the arm 15 is short, the dead space is reduced and the design is free. The degree can be increased. Moreover, since the arm shaft 16 becomes shorter, the cost of parts is reduced. And the weight can be reduced.

[0031]   Further, the spring 17 does not necessarily come into contact with the spring hooking portion 15c of the pinch arm 15 and the cam lock. The pinch arm 15 has no Even if it is engaged between the hook portion 15c and the spring hook portion provided on the chassis 1. Good.

[0032]

[Effect of device]

  As described above, according to the present invention, in the direction perpendicular to the chassis, , The rotation fulcrum between the arm shaft and the pinch arm bearing part is the pinch roller bearing structure. Since it is located between the structure and the spring hook portion of the pinch arm, it is a tension coil spring. By the urging force of the two pinch arms in the plane perpendicular to the chassis It is possible to generate a moment that rotates the support part in the direction of contacting the chassis. Wear. As a result, the pinch arm rotates in a plane perpendicular to the chassis, The support contacts the chassis and the pinch arm is effectively fixed to the chassis . As a result, the rotation of the pinch roller is stable and the running of the magnetic tape is stable. You can In addition, compared to the conventional structure, the arm axis can be shortened and the pin The short height of the arm reduces the occurrence of dead space, and the degree of freedom in design Can be increased. In addition, cut the arm shaft into a U-shaped chassis And the round bar is bent into a substantially right angle on the capstan side to form a round bar with a predetermined shape. It is not necessary to crimp the shaft formed by cutting to the chassis, which reduces assembly costs and It is possible to reduce the cost of parts and the weight.

[Brief description of drawings]

FIG. 1 is a diagram showing an overall configuration of a video cassette recorder according to an embodiment of the present invention.

FIG. 2 is a front view showing a support structure for a pinch roller according to the embodiment.

FIG. 3 is a plan view of a support structure for the pinch roller shown in FIG.

FIG. 4 is a front view showing a conventional pinch roller support structure.

[Explanation of symbols]

1 chassis 1a Main surface of chassis 7 Capstan 8 pinch rollers 15 pinch arm 15a, 15b arm support 15c Spring hook 15d circular hole (bearing part) 16 arm axis 17 Extension coil spring 18 Cam lever 19 Roller shaft 20 pinch roller bearing structure

Claims (3)

[Scope of utility model registration request] 1. A capstan that is provided substantially perpendicular to a chassis and is rotated by the driving force of a motor, and a magnetic tape is sandwiched between the capstan and the magnetic tape is pressed against the capstan. A pinch roller having a bearing structure capable of self-aligning for running the magnetic tape at a predetermined speed with rotation, and a roller shaft rotatably rotatably supporting the pinch roller at one end. A pinch arm rotatably supported around an arm axis provided substantially vertically to the
A tension coil spring for generating a rotational force of the pinch arm in a direction in which the pinch roller pivotally supported by the roller shaft is brought into contact with the capstan, and the pinch against the rotational force of the tension coil spring. In a pinch roller supporting structure of a video cassette recorder having a cam lever for rotating the pinch arm in a direction away from the capstan, the arm shaft cuts a part of the chassis into a substantially U shape. The pinch arm is formed by bending at a right angle to the capstan side, and the pinch arm is at a right angle to the main surface of the pinch arm at two locations near the roller shaft and on the chassis side. Two arm supports that are formed by being bent into contact with the chassis, the roller shaft and the arm. A spring hook portion formed at an intermediate portion with respect to the shaft at a substantially right angle to the main surface of the pinch arm and bent toward the chassis side, and one end of the tension coil spring is engaged with the arm shaft; The tension coil spring has a bearing portion that engages with the cam lever and a contact portion that abuts against the cam lever to receive the rotational force of the cam lever, and the tension coil spring has one end that is substantially horizontal to the chassis. Is engaged with a spring hook portion of the pinch arm, and the other end is engaged with a spring hook portion provided on the cam lever, and in the direction perpendicular to the chassis, the arm shaft and the pinch arm bearing portion. Is located between the bearing structure of the pinch roller and the spring hook portion of the pinch arm, and is urged by the tension coil spring to urge the chassis. Pinch roller support structure of the video cassette recorder, characterized in that in a plane perpendicular, the pinch arm the two arms supporting portion generates a moment that rotates in a direction in contact with the chassis for. 2. A capstan which is provided substantially perpendicular to a chassis and which is rotated by a driving force of a motor, and a magnetic tape is sandwiched between the capstan and the magnetic tape is pressed against the capstan. A pinch roller having a bearing structure capable of self-aligning for running the magnetic tape at a predetermined speed with rotation, and a roller shaft rotatably rotatably supporting the pinch roller at one end. A pinch arm rotatably supported around an arm axis provided substantially vertically to the
A tension coil spring for generating a rotational force of the pinch arm in a direction in which the pinch roller pivotally supported by the roller shaft is brought into contact with the capstan, and the pinch against the rotational force of the tension coil spring. In a pinch roller supporting structure of a video cassette recorder provided with a cam lever for rotating the pinch arm in a direction away from the capstan, in the direction perpendicular to the chassis, the arm shaft and the pinch arm A rotation fulcrum with the bearing portion is located between the bearing structure of the pinch roller and a spring hook portion that receives a pulling force of the tension coil spring of the pinch arm, and the urging force of the tension coil spring makes On the other hand, in the plane perpendicular to the roller shaft side of the pinch arm, A pinch roller support structure for a video cassette recorder, wherein a moment for rotating the chassis in a direction of contacting the chassis is generated. 3. The arm shaft is formed by cutting out a part of the chassis in a substantially U-shape and bending the chassis at a substantially right angle to the capstan side. Video cassette recorder pinch roller support structure.