JPH0119260Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pack stopper for a cassette tape player, and more particularly, to a stopper for preventing the cassette pack from accidentally flying out when the tape player is ejected.

A type of car-mounted cassette tape player is known in which the cassette pack is inserted into the tape player from the tape opening side. The dustproof door is used as a stopper for the cassette pack when ejecting. That is, as shown in FIG. 1A, a locking piece 2 bent toward the inside of the tape player is provided at the tip of the dust-proof door 1, and the bent portion between the dust-proof door 1 and the locking piece 2 is connected to the dust-proof door 1. By using the force of the spring to close the cassette pack P and locking it to the step S formed on the surface of the cassette pack P, the cassette pack does not fly out more than necessary from the tape player body when the cassette pack is ejected. It was locked like that. However, in such a conventional stopper, if the bending angle between the dust-proof door 1 and the locking piece 2 is large, the step S and the locking piece 2 cannot engage with each other, and the stopper effect cannot be sufficiently exerted. There is a drawback. In order to prevent this, when the bending angle of the locking piece 2 is made small as shown in FIG. In this case, the locking piece 2 and the step S
The dust-proof door 1 receives a force in the biting direction, which not only causes the cassette pack P to get caught and makes it impossible to take it out smoothly, but also causes the dust-proof door 1 to deform and break.

In addition, in order to improve this, the bending angle of the locking piece 2 is set to a certain degree as shown in FIG. An attempt has also been made to press the dustproof door 1 against the cassette pack P using the auxiliary elastic material 3 when engaging with the stepped portion S, thereby improving the stopping effect of the locking piece 2. However, this conventional type has the drawback that the elastic force tends to vary due to the instability of the material such as the sponge used as the auxiliary elastic material 3, making it difficult to obtain an appropriate pressing force.

In this way, with conventional stoppers, when the cassette pack P is pulled out further from the eject position, the cassette pack P gets caught and the ejecting operation cannot be performed smoothly, or conversely, the stopper's effectiveness is weak and the cassette pack does not reach the eject position. There was a drawback that it could not be stopped and would fly out.

The present invention was proposed in order to solve the above-mentioned drawbacks of the conventional tape player, and it is designed to ensure that the cassette pack is securely locked when ejecting, and that the cassette pack can be smoothly pulled out from inside the tape player when taking out the tape player. The purpose of this invention is to provide a stopper for a cassette pack.

Next, the present invention will be specifically explained based on the embodiments shown in FIG. 3 and below.

A pack guide 11 provided inside the tape player is a member for attaching a cassette guide P inserted into the tape player to a tape playback position where various mechanisms such as a reel base, pinch roller, and head are provided. be. This pack guide 1
1 is a side plate 1 that guides the left and right sides of the cassette pack P.
2, and a top plate 13 that covers the upper surface of the cassette pack P.

A pack stopper 14 is fixed to the top plate 13 of the pack guide 11.
That is, it protrudes toward the insertion direction of the cassette pack P. The pack stopper 14 is composed of a spring portion 15 extending along the top plate 13, a pack locking portion 16 bent at the tip thereof, and a pack insertion portion 17 provided at the tip side of the pack locking portion 16. has been done. By fixing the end portion of the spring portion 15 to the top plate 13 using means such as caulking 18, the pack stopper 14 has a pack locking portion 16 at the tip and a pack insertion portion 17 that are elastically released from the surface of the top plate 13. It is constructed in such a way that it can levitate.

The pack locking portion 16 is bent toward the inside of the pack guide 11 from the end of the spring plate 15. It engages with the stepped portion S. The pack insertion portion 17 is provided continuously to the tip of the pack locking portion 16, and the tip of the pack insertion portion 17 is connected to the pack guide 11 opposite to the pack locking portion 16.
It extends in the direction of spreading outward (upward). That is, the inclined surface of the pack insertion part 17 that widens outward serves as a guide part when inserting the cassette pack P into the pack guide 11.

Note that before the spring portion 15 is attached to the top plate 13, the spring portion 15 has a bent portion 19 such that the tip thereof faces toward the top plate side.
is formed, and this bent portion 19
The spring part 15 is attached to the top plate 1 by stretching it in a straight line.
3, an initial tension is applied such that the tip of the spring portion 15 elastically protrudes toward the inside of the pack guide 11.

The pack stopper of the present invention has the construction as described above, and its operation will be explained next.

When inserting the cassette pack P into the pack guide 11, the tip of the cassette pack P comes into contact with the inclined surface of the pack insertion part 17 of the pack stopper 14, and as a result, the pack stopper 14 is pressed by the cassette pack P and elastically outwards. The cassette pack P can be inserted deep into the pack guide 11.

Next, when ejecting the cassette pack P,
The cassette pack P is pressed toward the opening of the pack guide 11 by a cassette pushing member 20 provided on the tape player side. Then, when the cassette pack P moves forward, the cassette pack P
The pack locking portion 16 of the pack stopper 14 engages with the stepped portion S provided on the surface of the cassette pack P, and the cassette pack P is stopped at that position. Therefore, the cassette pack P is securely locked without flying out from the pack guide 11 at the time of ejection.

Next, when the cassette pack P is to be completely removed from the tape player for replacement or other purposes, the cassette pack P, which is locked by the pack locking portion 16 of the pack stopper 14, is further pulled out to the front side. Then, due to this pulling force, the stepped portion S
presses the pack locking part 16 outward, and as a result,
The pack stopper 14 is bent outward from the spring portion 15 and escapes from the stepped portion S.
Since the cassette pack P is disengaged from the pack locking portion 16, the cassette pack P can be pulled out from the pack guide 11.

As shown in the above embodiments, the pack stopper of the present invention is fixed to the pack guide, and since its pack locking portion protrudes in the direction in which the pack is pulled out, it is locked by the pack stopper 14. When taking out the cassette pack P to the outside of the tape player, the pack stopper 14 can always escape to the outside. As a result, unlike the conventional pack stopper using a dust-proof door, there is no inconvenience such as the cassette pack P getting caught and becoming impossible to take out. In particular, if the stopper is installed closer to the drawer side of the cassette pack than the locking part of the pack, like the stopper of a conventional dust-proof door, when the angle of the locking part is made small, the stopper and the cassette pack P However, in the present invention, the fixing position of the pack stopper 14 with respect to the top plate 13 is located further back than the direction in which the pack is pulled out. Even when the stop portion 16 and the stepped portion S are securely engaged, the cassette pack P
If the cassette pack P is pulled out further, the engagement between the two will definitely be disengaged, and the cassette pack P can be easily taken out.

Note that the present invention is not limited to the illustrated embodiment; for example, if the pack stopper 14 is made of sheet metal, the surface of the synthetic resin cassette pack P may be damaged depending on the shape of the locking part. However, in order to prevent this, the pack stopper may be entirely made of synthetic resin as shown in FIG. 6A. In addition, as shown in FIG.
7 is made of synthetic resin, and the other spring parts 1
5 can also be made of metal.

[Brief explanation of the drawing]

1A and 1B are cross-sectional views showing an example of a conventional pack stopper, FIG. 2 is a cross-sectional view of another conventional type similar to the above, FIG. 3 is a perspective view showing an embodiment of the pack stopper of the present invention, and FIG. The figure is a cross-sectional view of the same as above, and FIG. 5 is a cross-sectional view showing the installation state of the spring part in the present invention.
6A and 6B are cross-sectional views showing other embodiments of the present invention. 11...Pack guide, 12...Side plate, 13...
...Top plate, 14...Pack stopper, 15...Spring part, 16...Pack locking part, 17...Pack insertion part, 18...Crimping, 19...Bending part, 20...
Cassette extrusion member.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A plate-shaped spring portion, a pack locking portion provided at the tip of the spring portion, and a pack insertion portion provided at the tip side of the pack locking portion. A pack stopper is constructed, and the proximal end of the spring part is fixed to the pack guide in such a state that the pack locking part at the tip and the pack insertion part face the cassette insertion side, and the pack locking part is attached to the inside of the pack guide. A pack stopper for a tape player, characterized in that it projects in the direction in which the cassette pack is pulled out so as to be able to engage with a step provided on the surface of the cassette pack. (2) A bent part is formed in the spring part 15 of the pack stopper, and by fixing the pack stopper to the pack guide with the bent part stretched, the pack locking part and step are formed on the spring part of the pack stopper. A pack stopper for a tape player according to claim 1, wherein the pack stopper is adapted to provide elasticity in the direction of engagement with the tape player.