JPS62298051A - Cassette holder mechanism - Google Patents

Abstract

PURPOSE:To make the titled mechanism thin in size so that there in no possibility that is is caught on something, by using right and left cassette holders which are supported separately, respectively, by right and left chassis side plates, and providing a gap where a bottom plate does not exist, between the cassette holders. CONSTITUTION:When a cassette C is inserted into right and left cassette holders 2, 2 from the front of a device, the cassette C hits against a stopper of a bottom plate 2a, and the cassette holders 2, 2 also move to the inner part of a magnetic recording device. In such a case, the holders 2, 2 are subjected to a position control in the upper and lower directions, as a guiding roller 4 moves along a horizontal part of an L-shaped guiding hole 3. Simultaneously, the position control in the width direction is executed by guiding shaft 5, 5 which are inserted into a gap 7 of a side face plate 2b. When the holders 2, 2 reach the inner part of a chassis side plate 1, the guiding roller 4 is guided by the L- shaped guiding hole 3 and descends, and sets the cassette C to a play position on a reel base.

Description

Detailed Description of the Invention 3. Detailed Description of the Invention [Object of the Invention] (Industrial Application Field) The present invention is a magnetic recording device such as a tape player or a video deck that holds a cassette inserted inside the device. However, it relates to a cassette holder mechanism used to move the cassette to a predetermined play position.

(Prior Art) Conventionally, as shown in FIG. 4, a cassette holder 10 used in a magnetic recording device includes a bottom plate 11 supporting the bottom of a cassette C over the entire width, left and right side plates 12, 12, and a cassette. It was a box-shaped item consisting of left and right top plates 13 and 13 that covered the top side of C.

However, in such a box-shaped cassette holder 10, when the cassette C is lowered to the play position, the bottom plate 11 interferes with the members on the surface of the tape player, such as the reel base and its control drive member. Each member must be arranged avoiding the bottom plate 11, which limits the arrangement of the members, and the thickness of the entire device increases as each member is arranged below the bottom plate 11. Ta.

In addition, the box-shaped cassette holder 10 may be deformed due to a load applied from above, or when the left and right drive timing is shifted during movement, causing a planar twist as shown in FIG. There was also the risk that it would get caught on the supporting left and right chassis side plates 14, 14, preventing smooth movement.

Furthermore, when manufacturing a conventional cassette holder, if the width of the cassette holder 10 and the distance between the left and right chassis side plates 14 and 14 are not aligned with a certain degree of precision, the cassette holder may get caught or wobble. However, such size adjustment complicates manufacturing work.

(Problems to be Solved by the Invention) The present invention was proposed to solve the problems of the prior art as described above, and its purpose is to contribute to thinning of magnetic recording devices, and to To provide a cassette holder mechanism that is easy to manufacture and free from the fear of getting caught on left and right side plates or rattling during movement.

[Structure of the Invention] (Means for Solving the Problems) The cassette holder mechanism of the present invention includes: a. Left and right cassette holders that have a front opening shape and hold both sides of the cassette.

b. Left and right chassis side plates that independently support the left and right cassette holders with a gap maintained between them.

C9 Guide member for moving the left and right cassette holders up and down relative to the left and right chassis side plates.

It is characterized by having each of the constituent requirements of points a to c above.

(Function) In the cassette holder mechanism of the present invention having the above-described configuration, the cassette holder body is divided into left and right halves, and a gap where no bottom plate exists is formed in the center of the cassette holder body. , other members can be placed where the conventional bottom plate has been placed, and the thickness of the magnetic recording device can be made that much thinner.

Further, since the left and right cassette holders are separated, even if the cassette holder is deformed by a load or a force in a torsional direction, there is no risk of the cassette holder getting caught on the left and right chassis side plates.

In general, there is no need to match the distance between the left and right chassis side plates and the width of the cassette holder, and there is no need to increase the processing accuracy of the cassette holder.

(Example) Hereinafter, an example of the present invention will be specifically described with reference to FIGS. 1 and 2.

Configuration of this embodiment* Fig. 1 shows a front view of the cassette holder mechanism of this embodiment, and in the figure, 1 and 1 are left and right chassis side plates that support the cassette holder. Left and right cassette holders 2, 2 are independently supported inside the left and right chassis side plates 1, 1, respectively.

Each cassette holder 2, 2 includes a bottom plate 2a that supports the bottom of the cassette C, a side plate 2b that guides the side surface of the cassette C, and a top plate 2 disposed on the top of the cassette C.
It is supported by the chassis side plates 1, 1 so that the side plates 2b are along the inner surfaces of the chassis side plates 1, 1, respectively. Therefore, the left and right cassette holders 2゜2 hold only both sides of the cassette C, and there is a large space between the left and right cassette holders 2, 2 in which the bottom of the cassette t-C is exposed. A section is formed.

A guide member is provided between the left and right chassis side plates 1, 1 and the cassette holders 2, 2 as described above to support the cassette holder so as to be movable back and forth and up and down with respect to the chassis side plates.

In this embodiment, as shown in the side view of FIG. 2, three L-shaped guide holes 3 are provided in the chassis side plate 1 as guide members for regulating the positions in the front and rear and up and down directions. A guide roller 4 provided on the outer surface of the side plate 2b of the cassette holder 2 is inserted into the cassette holder 3. This L-shaped guide hole 3 is composed of a horizontal portion extending toward the back of the chassis side plate 1, that is, the back of the magnetic recording device, and a vertical portion extending downward from the far end of this horizontal portion.

Roughly speaking, in this embodiment, two guide shafts 5.5, front and rear extending vertically, are inserted into the inside of each chassis side plate 1 as guide members for regulating the position in the width direction. A gap 7 on the cassette holder 2 side is adopted.

That is, support pieces 6, 6 are provided on the upper and lower sides of the chassis side plate 1, and these support pieces 6 protrude inside the chassis side plate 1.
, 6 support the upper and lower ends of each guide shaft 5.5. On the other hand, in this embodiment, the side plate 2b of the cassette holder 2 has a double structure of an inner plate and an outer plate, and the guide is inserted into the gap 7 formed between the inner plate and the outer plate. Shafts 5, 5 are slidably inserted.

Effects of this embodiment* In the cassette holder mechanism of this embodiment having the above configuration, the left and right cassette holders 2,
When the cassette C is inserted into the cassette holder 2, the tip of the cassette C hits the stopper 2e provided at the back of the bottom plate 2a of the cassette holder 2, and as the cassette C is pushed in, the left and right cassette holders 2°2 also move to the back of the magnetic recording device. Move to. At this time, the guide roller 4 provided on the outer surface plate of the side plate 2b of the left and right cassette holders 2, 2 is connected to the chassis side plate 1.
By moving the horizontal portion of the L-shaped guide hole 3, the vertical position is regulated. At the same time, the position in the width direction is controlled by two guide shafts I to 5.5 inserted into the gap 7 of the side plate 2b of double tFs structure. When the left and right cassette holders 2゜2 reach the depths of the chassis side plate 1, the cassette holders 2, 2 descend as their guide rollers 4 are guided by the vertical portion of the L-shaped guide hole 3.
Set the internal cassette C to the play position on the reel base.

In this way, in the cassette holder mechanism of this embodiment, the left and right sides of the cassette C are held by separate cassette holders 2, 2, so there is no bottom plate in the center unlike the conventional box-shaped cassette holder.

Therefore, when the cassette holder falls to the play position on the reel base, there is no need to avoid the left and right reels, their driving gears, links, etc., which simplifies the structure of the bottom of the cassette holder, and There are advantages in that there are no restrictions on the arrangement of each member, and that the entire device can be made thinner by the thickness of the bottom plate.

In addition, since the left and right cassette holders are separate members, even if the cassette holder is twisted or deformed by the load, this will be absorbed by the space between the left and right cassette holders, reducing the widthwise dimension of the cassette holder. Since the cassette does not spread out, there is no fear that the cassette holder will get caught between the left and right chassis side plates, and the cassette can be inserted smoothly.

Furthermore, since the space between the left and right cassette holders absorbs dimensional errors in the cassette holder and chassis side plates, there is no need to match the gap between the left and right chassis side plates and the width of the cassette holder, which was required in the past. High dimensional accuracy is no longer required when manufacturing the holder, which makes manufacturing the cassette holder that much easier.

*Other Embodiments* As described above, the present invention is characterized in that the cassette holder is composed of two members, left and right, so the structure of the chassis side plate supporting the cassette holder and the structure of the guide member are conventional. Known materials can be used in appropriate combination.

For example, as a guide member, the gap 7 as in the above embodiment may be used.
In addition to the combination of the cassette holder and the guide shaft 5, a flange is provided at the tip of a guide roller temporarily provided on the side of the cassette holder, and this flange is engaged with the edge of the guide hole in the chassis side plate to regulate the widthwise position of the cassette holder. You may use one that does this.

Furthermore, in addition to the cassette holder that moves back and forth and up and down as in the illustrated embodiment, the present invention is also applicable to mechanisms having a cassette holder that only moves up and down, such as those used in conventional audio tape players.

[Effects of the Invention] As described above, according to the cassette holder mechanism of the present invention, the left and right cassette holders supported separately on the left and right chassis side plates are used, and there is no force between the left and right cassette holders. Despite the extremely simple method of providing a gap where there is no bottom plate, it is possible to reduce the overall thickness of the magnetic recording device and to smoothly load and eject cassettes.
This has the effect of making it easier to manufacture gN +M.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view showing one embodiment of the cassette holder mechanism of the present invention, FIG. 2 is a left side view thereof, and FIG. FIG. 4 is a front view showing an example of a conventional cassette holder mechanism, and FIG. 5 is a plan view showing its drawbacks. 1... Chassis side plate, 2... Cassette holder, 3...
...L-shaped guide hole, 4...Guide roller, 5...
Guide shaft, 6... Support piece, 7... Gap. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5

Claims (1)

[Claims] a. Left and right cassette holders that are U-shaped from the front and hold both sides of the cassette. b. Left and right chassis side plates that independently support the left and right cassette holders with a gap maintained between them. c. Guide member for vertically moving the left and right cassette holders relative to the left and right chassis side plates. A cassette holder mechanism characterized by having the above configuration requirements a to c.