JPH058781U - Tape cartridge - Google Patents

Abstract

(57) [Summary] [Purpose] The structure of both lock mechanisms is simplified by enabling the reel lock to be released in conjunction with the release operation of the front cover lock mechanism. [Structure] The tape 2 is led out to the front side of a main body case 1 containing a reel 3 around which the tape 2 is wound.
A front lid 6 for covering the lead-out portion 2a of the above is provided so as to be freely opened and closed around the shaft 10. A front lid locking device 14 is provided so as to be rotatable around a horizontal shaft 16. A reel lock tool 34 is provided near the front lid lock tool 14 so as to be rotatable around a vertical axis 35. A drive piece 43 is provided on the front lid lock tool 14. A passive piece 44 that comes into contact with the drive piece 43 is provided on the reel lock tool 34. When the front lid lock tool 14 rotates in the unlocking posture direction, the drive piece 43 pushes the passive piece 44, and the reel lock tool 34 rotates in the unlock position direction.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

  The present invention relates to a tape cartridge having a front lid for protecting the tape, more specifically Is an improved version of the locking mechanism for the front lid and the reel for tape winding. is there.

[0002]

[Prior art]

  As a tape cartridge having two lock mechanisms of this type, for example, There is an 8 mm video cassette as disclosed in Japanese Patent Publication No. 63-49910. So Here, as shown in FIG. 6, the locking tool 14 of the front lid 6 and the locking tool 51 of the reel 3 are Independently placed in different places.   As shown in FIG. 7, the locking tool 14 of the front lid 6 includes the side piece 9 of the front lid 6 and the main body case 1. Inside the space S between the side wall 11 and the side wall 11, a lock posture and an unlock position for restricting rotation of the front lid 6 in the opening direction are provided. When it is provided so as to be rotatable in the front-back direction around the horizontal shaft 16 in the locked posture. In fact, the spring member 24 is constantly biased to rotate in the lock posture direction, as shown in FIG. The front lid lock release operation member 22 on the deck side is located above Entering S and rotating the front lid locking device 14 in the unlocking direction to lock the front lid 6. To cancel.   On the other hand, as shown in FIG. 6, the lock 51 of the reel 3 is located inside the main body case 1 on the left side. The engaging teeth 39 on the peripheral edge of the lower flange 37 of the reel 3 are connected to the rear between the right reels 3 and 3. Linearly reciprocating in the front-back direction across the locked and unlocked positions And is constantly biased forward by a spring member 53, A reel lock release operation member (not shown) comes in from the bottom of the main body case 1 and By moving the lock tool 51 rearward, the lock of the reel 3 is released. There is.

[0003]

[Problems to be solved by the device]

  However, as described above, the locks 14.5 of the front lid 6 and the reel 3 respectively. In the structure that operates 1 individually, it is necessary to have a dedicated unlocking operation member on the deck side. In addition, on the tape cartridge side, reel lock tool 51 The structure is complicated because it is operated by the operation member on the side.

[0004]   According to the present invention, the front lid lock tool 14 regulates the rotation of the front lid 6 in the opening direction as described above. It rotates in the front-back direction about the horizontal axis 16 between the locked posture and the unlocked posture. For the tape cartridge currently installed, the release operation of the front lid lock mechanism By making it possible to unlock the reel lock mechanism by using The front lid lock release operation member on the side can also be used for reel lock release operation. The objective is to simplify the structure of the reel lock mechanism on the trench side.

[0005]

[Means for Solving the Problems]

  The present invention, as illustrated in FIG. 1, is a tape led out to the front side of the main body case 1. The front lid locking device 14 that locks the front lid 6 that covers the lead-out portion 2a of Rotate around the horizontal axis 16 between locked and unlocked postures that regulate rotation Based on a tape cartridge that can be freely installed, the front lid locking device 14 To the reel 3 at a position close to the And a reel lock. The front lid lock is provided with a spring member 47 that constantly biases the tool 34 in the locking posture direction. The tool 14 and the reel lock tool 34 are arranged in the unlocking posture direction of the front lid lock tool 14. The operation of transmitting the rotation by changing the rotation to the rotation of the reel lock tool 34 in the unlocking posture direction. The motion transmission mechanism 42 is connected. The movement transmitting mechanism 42 may be, for example, a front lid. The drive piece 43 provided on the lock tool 14 side and the reel roller so as to contact the drive piece 43. It can be configured by a passive piece 44 provided on the fitting 34 side.

[0006]

[Action]

  By rotating the front lid lock 14 around the horizontal shaft 16 in the unlocking direction, The drive piece 43 pushes the passive piece 44, and the reel lock tool 34 moves around the vertical axis 35. It rotates in the locking direction to release the engagement with the reel 3.

[0007]

[Effect of device]

  Therefore, according to the tape cartridge of the present invention, the lock of the front lid locking device 14 is locked. The reel lock tool 34 is unlocked via the motion transmission mechanism 42 in conjunction with the unlocking operation. Since it is designed to be removed, only the front lid lock release operation member on the deck side The reel lock release operation is unnecessary, and it is not necessary on the tape cartridge side. The structure of the lock mechanism can be simplified. Also, as a motion transmission mechanism 42 Since the moving piece 43 and the passive piece 44 are in direct contact with each other, the space is limited and limited. It can be stored compactly inside.

[0008]

【Example】

  One embodiment of the present invention applied to an 8 mm video tape cartridge is shown in FIG. This will be explained based on FIG.   In FIG. 3, the main body case 1 is a plastic upper and lower case 1a, 1b. The reel 3 around which the tape 2 is wound is freely rotatable. Be accommodated. Tape outlets 4 are formed in the front opening on the left and right of the front side of the body case 1. Then, the tape 2 is fed from one reel 3 through the tape outlet 4 to the front side of the case. And is wound up on the other reel 3.

[0009]   At the center of the front surface of the main body case 1 between the left and right tape outlets 4, Pocket 5 with tape loading pin is inserted toward the inside of the case Is formed. The front side of the main body case 1 covers and protects the lead-out portion 2a of the tape 2. The front lid 6 is attached so that it can be opened and closed.

[0010]   The front cover 6 includes a front plate 7 that closes the front surface of the main body case 1 across the left and right, and a front plate 7. A side piece 9 that is connected to the rear from both left and right ends of 7 and a shaft 10 that protrudes from the inner surface of the side piece 9. In the plastic molded product, the left and right side pieces 9 have left and right side walls of the main body case 1. The shaft 10 is fitted into a shaft hole 12 provided in the side wall 11 so as to face the outside of the front end of the shaft 11. As a result, similar to the conventional one shown in FIG. 7 and FIG. It is freely rotatable in a posture in which the front side of the shoe 1 is closed and a posture in which it is opened upward. Body case 1 In the space S between the side wall 11 on one side and the side piece 9 of the front lid 6 facing the side wall 11, A torsion coil spring 13 is mounted on 10 and the spring force always rotates the front lid 6 in the closing direction. I am motivated.

[0011]   In the space S, behind the shaft 10 is almost the same as the conventional one shown in FIG. The front lid locking device 14 is incorporated. Is the front lid lock tool 14 on the left and right sides of the head 15 From which a horizontal shaft 16 is projected, and front and rear leg parts 17 and 19 are integrally connected downward from the head part 15. It is a plastic molded product, and the side walls 11 of the upper and lower cases 1a and 1b are joined together. The horizontal shaft 16 is bridged over the bearing portions 23 formed on the left and right sides of the baffle, and around the horizontal shaft 16. A spring member 24 that is swingably supported in the front-rear direction and that is arranged behind the lock tool 14. Always swinging forward with. The lower end of the leg portion 17 on the front side of the front lid lock tool 14 Engage with the engaged surface 20 of the engaged protrusion 26 provided on the inner surface side of the side piece 9 of the front lid 6. Is formed on the front side of the lower end of the rear leg portion 19 and the deck side described later. The receiving surface 18 with which the front lid lock release operating member 22 contacts is formed.

[0012]   Thus, as shown in FIG. 7, the tape cartridge should be in the closed position when not in use. The engaging surface 21 of the front lid lock tool 14 wraps around the engaged surface 20 on the front lid 6 side from below. It is ensured that the front cover 6 turns upward around the shaft 10 by abutting engagement with each other. Lock to.

[0013]   When the tape cartridge is loaded in the deck, as shown in Figure 8, The lid lock release operating member 22 is relatively guided from the front side and the front plate 7 of the front lid 6 is It goes into the space S through the notch 27 formed at the end, and Push the receiving surface 18 of the leg 19. With this, the front lid locking device 14 resists the spring member 24. It swings rearward, and the engagement surface 21 of the front lid lock tool 14 is rotated by the turning surface of the engaged surface 20 on the front lid side. It comes off below the mark and the closing lock of the front lid 6 is released. Then fix the deck side A lever (not shown) contacts the cutout portion 27 of the front lid 6 to rotate the front lid 6 upward. It

[0014]   When the operation in the deck is completed, the front lid lock release operation member 22 and the fixed lever are Is retracted to the position when not in use, and the front lid lock 14 is pressed by the spring pressure of the spring member 24. Is pushed forward and swung, and is returned to the closed position by the torsion coil spring 13. The front lid locking device 14 is attached to the rounded guide surface 25 provided on the engaged projection 26 of the certain front lid 6. The engaging surface 21 of is engaged and guided, and at the same time as the closing of the lid, the engaging surface 21 is engaged with the engaged projection 2 The front cover 6 is locked by engaging the engaged surface 20 of the front cover 6.

[0015]   As shown in FIG. 8, the shaft 31 of the back lid 30 is rocked on the back lid supporting piece 29 inside the front lid 6. The back cover 30 movably supports the inside of the tape 2 including the lower side of the tape 2 when not in use and the back cover 30. The upper surface of the opening of the packet 5 is sealed to prevent dust from adhering to the tape 2. This back lid 30 does not interfere with the tape 2 at all as the front lid 6 is opened, and the front lid 6 Moves up with.

[0016]   The present invention relates to a tape cartridge provided with the lock mechanism for the front lid 6 as described above. As shown in FIG. 1, the reel lock tool 34 is provided near the front lid lock tool 14. In this case, the release of the reel lock tool 34 is the release operation of the lock mechanism of the front lid 6 described above. The front lid lock tool 14 and the reel lock tool 34 are connected to Continue at 42.

[0017]   Therefore, as shown in FIGS. 1 and 2, the reel lock tool 34 has a lower case. The tape between the front lid locking device 14 and the reel 3 adjacent to the front lid locking device 14 on the inner surface of 1b. At the inner depth of the pull-out port 4, turn around the vertical axis 35 protruding from the inner surface of the lower case 1b. Be prepared to move freely. The reel lock tool 34 is attached to the tip of the lever-shaped main body 36 The engaging teeth 39 on the peripheral edge of the lower flange 37 of the base 3 are provided with engaging and disengaging claws 40, and the main body 36 A boss 41 through which the vertical axis 35 passes is formed near the rear end.

[0018]   On the other hand, the inner end side of the horizontal shaft 16 of the front lid locking device 14 is formed to extend inward of the case. At the same time, the drive piece 43 is integrally formed with the extension end at a right angle to the horizontal shaft 16. So Arranged so that the reel locks 34 cross below the inner end side of the extended horizontal shaft 16 of To be done. The reel lock tool 34 moves the passive piece 44 upward from the middle between the boss 41 and the claw 40. The passive piece 44 is brought into direct contact with the drive piece 43 on the horizontal shaft 16. Further, the reel lock tool 34 is provided with a pin 45 and a lower case protruding from the rear portion of the boss 41. The spring member 47 hung between the protrusions 46 projecting from the inner surface of the switch 1b is always in the lock posture direction. It is biased to rotate.

[0019]   Thus, the front lid locking device 14 is moved from the locked position shown in FIG. ), The driving piece 43 pushes the passive piece 44 to release it. The reel lock tool 34 rotates in the unlock direction around the vertical axis 35 to reel the pawl 40. 3 from the engaging teeth 39.

[0020]   As the lock mechanism of the other reel 3, for example, as shown in FIG. A reel lock tool 34 having substantially the same shape as that of A driving piece 49 protruding from the driving piece 49, and the driving piece 49 is provided on the reel lock tool 34. The driving piece 49 presses the passive piece 44 by bringing the front lid 6 into contact with the driving piece 44 and rotating the front lid 6 open. As a result, the reel lock tool 34 rotates in the unlocking direction to move the claw 40 to the reel 3 It may be removed from the engaging teeth 39.

[0021]   4 and 5 show a modified embodiment of the passive piece 44 of the reel lock 34. There Then, the reel lock tool 34 is shaped like a dogleg in plan view with the boss 41 as a bending point. The claw 40 on the front side of the boss 41 and the passive piece 44 on the rear side of the boss 41. The drive piece 43 of the front lid lock device 14 is provided so as to project forward from the inner end of the horizontal shaft 16. Is brought into contact with the passive piece 44. FIG. 4A shows the locked state of the reel 3, (B) of the figure shows the respective unlocked states.

[0022]   The same applies to other than 8 mm video, such as VHS tape cartridges. Applicable.

[Brief description of drawings]

FIG. 1 is a plan view of a main part.

FIG. 2 is a perspective view of a main part.

FIG. 3 is an overall internal plan view.

FIG. 4 is a plan view of a main part showing another embodiment.

5 is a perspective view of the lock of the embodiment shown in FIG. 4. FIG.

FIG. 6 is an overall internal plan view of a conventional example.

7 is a cross-sectional view taken along the line CC in FIG.

FIG. 8 is a front cover open state diagram corresponding to FIG. 7;

[Explanation of symbols]

1 body case 2 tapes 3 reel 6 front lid 10 axes 14 Front lid lock 16 Horizontal axis 34 reel lock 35 Vertical axis 42 Motion transmission mechanism 43 Drive piece 44 Passive piece 47 Spring member

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Creator Kazuhiro Takahashi             Hitachi Ma, 1-88, Torora, Ibaraki City, Osaka Prefecture             Within Kucsel Co., Ltd.

Claims (2)

[Scope of utility model registration request] 1. A body case 1 containing a reel 3 around which a tape 2 is wound, an openable and closable front lid 6 for covering a lead-out portion 2a of the tape 2 led out to the front side of the body case 1, and a front lid 6.
The front lid 6 has a front lid lock tool 14 for closing and locking the reel 3 and a reel lock tool 34 for restricting the rotation of the reel 3. The front lid 6 has a closed posture for covering the tape lead-out portion 2a and an opening for exposing the tape lead-out portion 2a. The front lid locking device 14 is rotatable about the horizontal axis 16 in a locking posture and an unlocking posture for restricting rotation of the front lid 6 in the opening direction. The reel lock tool 34 is rotatably provided around the vertical axis 35 in a lock position and an unlock position in which the reel lock tool 34 is in abutting engagement with the reel 3 at a position near the front lid lock tool 14. The front lid lock tool 14 and the reel lock tool 34 are provided with a spring member 47 that constantly biases the reel lock tool 34 in the locking posture direction. Tape cartridge characterized in that it is connected by an motion transfer mechanism 42 that click the rotation of the orientation direction and diverted rotated in the unlocking posture direction of the reel lock member 34 to transmit. 2. A drive piece 43, which is integrally provided on the front lid locking device 14 side and which rotates together with the movement transmitting mechanism 42.
And a passive piece which is provided on the reel lock tool 34 side so as to come into contact with the drive piece 43, and which transmits the rotation of the drive piece 43 in the unlock direction to the rotation of the reel lock tool 34 in the unlock direction. 44. The tape cartridge according to claim 1, comprising: