JPS5835774A - Brake for tape cartridge - Google Patents

Abstract

PURPOSE:To prevent contact between a tape and a part to be braked at a tape assembling work, by forming a part to be braked at the inside of a hub. CONSTITUTION:A part to be braked, e.g., a latching teeth 211 is formed at the inner circumference of a center hub 17a of a reel 17. The rotation of the reel 17 is braked. In setting a cartridge to a player, magnetic heads A and B and their relating members press an operating level 23, release the latch between latch projections 22 and latching teeth 21, allowing to freely rotate the reel 17.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a braking device for a tape cartridge.

A non-treadless magnetic tape is wound around a freely rotatable reel housed in a case, and the tape is pulled out from the innermost side of the winding part, and the tape guide provided on the inner side of the front surface of the case and the other side are pulled out. Through the pinch roller arranged on the side, it is possible to run along the front opening for operating the magnetic head and cab ball tongue installed on the roller, and then it is wound on the outside of the winding section. A tape cartridge is known. In such a tape cartridge, the reel easily rotates due to rocking when it is set in a player, removed, or stored in a storage case, and the position of the tape changes when the reel stops. There was a problem. This problem is particularly caused by a so-called karaoke tape cartridge, in which the sensing section provided on the tape and the player's sensor (magnetic head) work together to cue the beginning of five songs when the tape is automatically stopped. This can be said to be a fatal flaw in a system that is This is because, in such a system, playing an Etenip cartridge usually requires a fee, so a situation may arise where a song is played from the middle even though the prescribed fee has been paid.

Conventionally, in order to prevent the occurrence of situations such as nicks, retaining teeth are provided around the outer periphery of the base disc, and a retaining member that engages with the retaining teeth is installed inside the case. There are also products on the market that have a reel braking mechanism that is released when the tape cartridge relarge is set in the playing position of the player. However, in such tape cartridges, when the tape is wound outside the reel winding section, there is a high risk that it will come into contact with the retaining teeth and be damaged, and when assembling the cartridge, especially when installing the tape, The reel wrapped with tape is set in a predetermined position in all the cases, and the reel is rotated with the tape set in the predetermined line position. At this time, the holding member is operated with one hand to maintain the reel. This has disadvantages such as poor workability as it requires releasing the lock.

In order to eliminate the above-mentioned drawbacks of the conventional cartridge, the present invention has a cartridge case in which an upper half and a lower half are overlapped with each other, and an opening for operating a head or the like is provided at least in the front surface. In the tape cartridge, a tape winding reel having a hub in the center is rotatably supported on the lower half of the case, and a braked part is provided inside the hub, and the braked part is provided at one end of the tape cartridge. An operating member having a braking part that brakes the reel in conjunction with the head is attached to the upper half of the case so as to be able to cooperate with the head, etc., and its purpose is to It is an object of the present invention to provide a braking part '1 that does not cause damage to the tape and does not hinder tape assembling work. The drawings will be explained in detail below.

The drawing shows one embodiment of the present invention, and in the drawing, 10 is a cartridge case formed by overlapping an upper half (lid) 10a and a lower half (base) 10b, and 11, 12, 13 are cases. A plurality of openings are formed in the front surface in the longitudinal direction of the opening 10, and the opening 11 has a magnetic head (not shown) installed in the player, and the opening 12.13 has a magnetic head A,
When B is activated, it looks like this. 14 is a tape guide arranged on the inside and side of the front surface of the cartridge case; 154 1. <Pinch roller 16 rotatably disposed on the other side is a head nozzle rad mechanism. This head nozzle pad mechanism 16 includes a nozorad pad 16a which has head pads 16b and 160 such as felt bonded on both ends, and a smooth protrusion of the same tape protruding from the magnetic tape running side at the center of the pad 16a. (Tape guide) 16d and the central part of the Nomurad paste 16a, and the back side of the tape guide 16d is connected to a supporting portion 1 having a hinge function.
A dogleg-shaped elastic member (elastic piece) 16f supported by 6e is fixed to the tape guide 14, and the other end is fixed to the tape guide 14. Fixed plate 16gh standing up in the lower half of the case lob
is in contact with. A reel 17 is rotatably disposed within the lower half 10b of the case, and has a hub 17a in the center.

Reference numeral 18 denotes a magnetic tape wound on a reel 17. This magnetic tape 18 is pulled out from the innermost side of the winding part in an obliquely reversed state, and is passed through the tape guy)' 14 and the pinch roller 15 to the opening 11, 12 and 13, and then changes direction via a guide pole 19 so that it is wound on the outside of the winding section in the opposite direction to the tape pull-out section. 2° is a guide plate having an inclined surface.
Reference numeral 21 designates a braked part, such as a locking tooth, provided on the inner peripheral edge of the hub 17a, and 22 designates a brake part, such as a locking protrusion, that brakes the rotation of the reel 17 in conjunction with the braked part 21.

The locking protrusion 22 is provided at one end 23a of an operating rod 23 that is attached to the inner surface of the upper half 10a of the case so as to be movable only in the front-back direction. It faces the opening 12. In addition, the operating rod 23 is a plate-shaped screw 24. It is always energized in the front direction of the case due to the elastic force of the coil nose 25.
Engage with this! 22 engages with the engagement teeth 21 to prevent rotation of the reel.

In the above configuration, when the cartridge is in the non-operating state, the engagement protrusion 22 is engaged with the engagement tooth 21 as described above, so that rotation of the reel 17 is prevented. Then,
Now, when the cartridge is set in the playing position of the player, the magnetic heads A and B will face the opening 12.13, and at this time, the other end 23b of the operating rod 23 is pressed by the head A or its surrounding members, and the operating rod 23 is pressed. Rod 23 is spring 2
4 and 25 to the rear of the case, the locking protrusion 22 and the locking teeth 21 are released from locking, and the reel 17 is in a state where it can rotate freely, and the tape is played back. will be carried out. Next, when the magnetic head B detects the sensink tape and stops running the magnetic tape 18 while the song is being played, when the cartridge is returned to the non-playing position of the player, the operating rod 2:lC Since the pressure on the tooth 24 is released, the operating rod 23 returns to its original position due to the elastic force of the Nonone 24, 25, and the engagement protrusion 22
The rotation of the reel 17 is thereby prevented. As a result, the reel 17 is brought into a braking state again, and the cue position ml of the song is fixed.

FIG. 4 shows another modification of the device of the present invention.

This modified example uses a standard reel 17 with a smaller diameter and is placed eccentrically in the direction of the pinch roller 15, and uses an operating rod 23 bent into a crank shape. be.

The splitting 6 moving part 21 and the braking part 22 are not limited to those in the embodiment described above, and may be, for example, friction plates. Moreover, the position of the braked part 21 may be any position as long as it is inside the hub 17'a.

As explained above, according to the present invention, the cartridge case has an upper part and a lower half that overlap each other and has an opening for operating a head or the like on at least the front face, and the lower half inside the case In the above tape cartridge, which has a hub in the center and is rotatably supported, a braked part is provided inside the hub, so that the tape does not come into contact with the tape during the tape installation process as in conventional tape cartridges. There is no risk of damage due to contact with the mating teeth, and the actuating member, which has a braking part that cooperates with the braked part, is attached to the upper part of the case.
At the time of tape assembly, the reel is in a state where it can rotate freely, so there is no problem with the reel's smooth rotation and tape running, and unlike conventional work, the retaining member can be operated with one hand during the work to fully engage the reel. Since there is no need to release it, there are advantages such as efficient assembly work.

[Brief explanation of drawings]

The drawings show embodiments of the present invention; FIG. 1 is a perspective view of a tape cartridge according to the present invention, FIG. 2 is a plan view with the upper half removed, and FIG. 3 is a diagram showing the upper half. Internal view of the 4th
The figure is similar to FIG. 2 showing another variant of the invention. 10... Cartridge case bloa...
... Upper half, 10b... Lower half, 11.12.
13...Operating opening, 17...Reel, 17a...Hub, 18...Tape,
21... Braked part (retaining tooth), 22...
- Braking part (engaging protrusion), 23... Operating member (operating rod). Patent applicant: Kawachi - Male patent attorney: Yoshi 1) Yoshitaka Figure 3

Claims (1)

[Claims] A tape having a cartridge case with an upper half and a lower half overlapping each other and having an opening for operating a head or the like on at least the front side, and having a hub in the center on the lower half of the case. In a tape cartridge in which a winding reel is rotatably supported, a braked part is provided inside the hub, and an actuating member having a braking part at one end that brakes the reel in conjunction with the braked part is attached to the head, etc. A braking device for a tape cartridge, characterized in that the braking device is mounted on the upper half of the case so as to be able to cooperate with the braking device.