JP2002008288A - Magnetic recording/reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To remove a space disadvantageous for device miniaturization by eliminating the necessity of the storage space of the connection part of a flexible printed wiring board for absorbing the displacement of the position of a moving member, and to reduce the number of parts by removing the pressing member or the like of the flexible printed wiring board in a magnetic recording/ reproducing device for loading a tape by moving a tape cassette close to a rotary head drum by a linear skate chassis. SOLUTION: The linear skate chassis 4 and a base chassis 2 are connected with each other by a flexible printed wiring board 15, and the flexible printed wiring board 15 is formed in such a manner that a part 15a fixed to the linear skate chassis 4 and a part 15b fixed to the base chassis 2 are disposed in an upper and lower hierarchical shape, and each part is connected the other by a connection part 15c bent in a hairpin shape.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic recording / reproducing apparatus for performing tape loading by moving a tape cassette to a position near a rotary head drum by a linear skate chassis, thereby realizing miniaturization and reduction of the number of parts. About.

[0002]

2. Description of the Related Art In general, a magnetic recording / reproducing apparatus using a rotary head drum draws a magnetic tape from a tape cassette and winds the magnetic tape around the rotary head drum so that the tape travels to record information on the magnetic tape. The reproducing operation is performed.

A conventional magnetic recording / reproducing apparatus a as described above
In recent years, as shown in FIGS. 7 and 8, in order to reduce the size of each mechanism in the depth direction, a base chassis b
A member c called a linear skate chassis is provided thereon, and a tape cassette (not shown) is moved in a direction approaching the rotary head drum d during tape loading, and the rotary head drum d is inserted into a concave pocket portion (mouth portion) at the front of the tape cassette. The mechanism which made it penetrate is adopted.

That is, the driving force generated by the motor e for loading driving is transmitted through a driving force transmission mechanism f having a gear train and the like, and the linear skate chassis c
Is moved relative to the base chassis b so that the tape cassette approaches or separates from the rotary head drum d.

Incidentally, the linear skate chassis c
Above are a sensor that detects the status of the tape reel, a switch that detects whether the tape cassette is recordable (whether or not recording is prohibited by the user, etc.),
Since a light receiving element and the like for detecting the start and end positions of the magnetic tape are mounted, the flexible printed wiring board g electrically connects these parts to other parts.

[0006] In the flexible printed wiring board g, a portion mounted on the base chassis b whose position is normally moved and a portion mounted on the base chassis b whose position is fixed are connected by a connecting portion h. Therefore, when the linear skate chassis c moves, the base chassis b and the linear skate chassis c
Is loosely folded or extended from that state to absorb the displacement of the position accompanying the movement of the linear skate chassis c.

By the way, the flexible printed wiring board g
As shown in FIG. 7, when the tape cassette is not mounted on the linear skate chassis b (waiting for the tape cassette to enter), the base chassis b and the linear skate chassis c are bridged substantially linearly. But
When the movement of the linear skate chassis c is completed and the tape cassette approaches the rotary head drum d, the connecting portion h is deformed into a folded shape, and the base chassis shown as a hatched area in FIG. 8 for convenience. The structure is such that it is stored in the storage space i between the linear skate chassis c and the linear skate chassis c. Also, on the base chassis b,
A holding member j for fixing the flexible printed wiring board g so as not to loosen is also required.

However, in the above-mentioned conventional magnetic recording / reproducing apparatus, the storage space of the connecting portion h of the flexible printed wiring board g folded and stored and the pressing member j of the flexible printed wiring board g are required. For this reason, these are disadvantageous for the purpose of reducing the size of the apparatus and reducing the number of parts.

[0009]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and in the magnetic recording / reproducing apparatus which performs tape loading by moving a tape cassette to a position near a rotary head drum by a linear skate chassis, This eliminates the need for a storage space for the connection portion of the flexible printed wiring board that absorbs the displacement of the flexible printed wiring board, eliminates extra space that is disadvantageous for miniaturization of the device, and eliminates the number of parts by eliminating the holding member for the flexible printed wiring board. The task is to reduce it.

[0010]

In order to solve the above-mentioned problems, a magnetic recording / reproducing apparatus according to the present invention connects a linear skate chassis and a base chassis by a flexible printed wiring board, and connects the linear skate chassis to the linear skate chassis of the flexible printed wiring board. The fixed part and the part fixed to the base chassis are arranged in upper and lower hierarchies, and the parts are connected by a connecting part curved like a hairpin.

Therefore, the storage space of the connecting portion of the flexible printed wiring board can be made as small as possible.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the magnetic recording / reproducing apparatus according to the present invention will be described below with reference to the accompanying drawings.

As shown in FIGS. 1 to 3, the magnetic recording / reproducing apparatus 1 has a base chassis 2 on which necessary components and members described later are mounted.

Hereinafter, the configuration of the magnetic recording and reproducing apparatus 1 will be described.

That is, a cassette holder (not shown) for holding a tape cassette and moving it from an insertion or ejection position to a loading position and its driving mechanism, a rotary head drum 3, a linear head The skate chassis 4, the linear skate chassis 4, and a drive mechanism 7 for driving a tape loading mechanism (not shown) are mounted.

The rotating head drum 3 is fixedly arranged at the back of the base chassis 2 and is equipped with a plurality of magnetic heads (not shown). The rotating magnetic head records data signals on a magnetic tape. And reproduction is performed.

The linear skate chassis 4 moves horizontally on the base chassis 2 in a direction in which the tape cassette approaches the rotary head drum 3, and as shown in FIG. A chassis body 5 and a plate-like linear skate cam plate 6 which are open at the side facing the rotary head drum 3 and have other portions surrounded by a plate-like wall.

The linear skate cam plate 6 is fixed to the bottom of the chassis main body 5 by an appropriate means such as a screw as shown in FIG.

As shown in FIG. 6, the linear skate cam plate 6 has rack gears 6a, 6a formed on both sides from the center of a substantially rectangular portion and a cam hole 6b substantially in the center.
Is formed in a convex shape protruding only on one side.

Therefore, the linear skate chassis 4 can be moved horizontally by engaging the linear skate cam plate 6 with the drive mechanism 7 as described later. Further, when the linear skate chassis 4 is driven by the drive mechanism 7 and moves horizontally as described above, the tape guide gear of the loading mechanism meshed with the rack gears 6a, 6a is rotated.

As will be described later, the linear skate chassis 4
Since it is necessary to connect the base chassis 2 to the flexible printed wiring board in order to perform electrical wiring of various components disposed thereon, the flexible printed wiring board fixed to the upper surface of the linear skate cam plate 6 is required. As shown in FIG. 6, a notch 6c is provided for passing a connection part from a part to a part fixed to the base chassis 2.

The linear skate chassis 4 is driven by a drive mechanism 7 common to a tape loading mechanism (not shown) and moves in the horizontal direction (the front-back direction of the base chassis 2) with respect to the base chassis 2. I have.

When the tape cassette is ejected, the linear skate chassis 4 slightly protrudes from the outer periphery of the base chassis 2 as shown in FIG. 2, and the tape shown in FIG. When the cassette is completely pulled in and loaded, the tape cassette moves horizontally in the direction of the rotary head drum 3 as compared with when the tape cassette shown in FIG. 3 is moved to a position in the vicinity.

The drive mechanism 7 is for driving the linear skate chassis 4 and the tape loading mechanism (not shown) as described above. As shown in FIG. 3, the motor 8 and the plurality of drive gears 9, 10, 11 are provided. Etc.

That is, the operation of the driving mechanism 7 is such that the driving force of the motor 8 is transmitted to the driving gears 9, 10 and 11 in order,
Further, the engagement between the guide pin 11a provided on the final drive gear 11 and the cam hole 6b of the linear skate cam plate 6 converts the rotational motion into a reciprocating motion.

Accordingly, when the motor 8 rotates, the driving force is transmitted to the driving gears 9, 10 and 11 in order, and the final rotation of the driving gear 11 is transmitted to the guide pin 11a and the cam hole 6b of the linear skate cam plate 6. The linear skate cam plate 6 and the linear skate chassis 4 fixed to the linear skate cam plate 6 are moved in the horizontal direction. Turn the cassette into the rotating head drum 3
, Or can be separated.

The linear skate chassis 4 has a rotation detecting sensor 1 for detecting the rotation of the tape reel.
2, 12, a detection switch 13 for detecting whether or not the tape cassette is recordable (whether the recording is prohibited by the user), and light receiving elements 14, 14 for detecting the start and end positions of the magnetic tape. The linear skate chassis 4 moves in the horizontal direction with respect to the base chassis 2 as described above.

Therefore, in order to absorb the displacement of the position accompanying the movement of the linear skate chassis 4, FIGS.
As shown in FIG. 1, the rotation detection sensor 12 is mounted on a flexible printed circuit board (hereinafter, abbreviated as a flexible board) 15.
12, a detection switch 13 and light receiving elements 14 and 14 are mounted, and a flexible board 15
And the linear skate chassis 4 and these and other parts are electrically connected.

As shown in FIGS. 1 to 3, the flexible plate 15 has a main portion 15a located in the linear skate chassis 4, which is a movable portion, and a lower portion of the main portion 15a, that is, a bottom surface of the base chassis 2. And a connecting portion 15c connecting the main portion 15a and the fixing portion 15b.

As shown in FIGS. 3 and 4, the main portion 15a is fixed to the upper surface of the linear skate cam plate 6 with an adhesive or the like.
The detection switch 13, the light receiving elements 14, and the like are provided at appropriate places. In addition, the fixing portion 15b
As shown in FIGS. 1 and 2, the base chassis 2 is adhered and fixed to the bottom and side surfaces of the base chassis 2 with an adhesive or the like, and wiring to the motor 8 of the drive mechanism 5 is made on the side near the rear portion. A portion extending rearward of the rear end 2 is connected to an operation control portion of the magnetic recording / reproducing apparatus 1 (not shown).

The connecting portion 15c extends downward from the front end of the main portion 15a, which has reached the front surface of the linear skate chassis 4, through the cutout portion 6c of the linear skate cam plate 6 in a substantially hairpin-like manner. It is a part following the fixing part 15b located below 15a.

Therefore, when the linear skate chassis 4 moves in the front and rear horizontal direction with respect to the base chassis 2 whose position is fixed, the connecting portion 15c also has a positional relationship with the fixing portion 15b. Changing main part 15a
As shown in FIGS. 1 and 2, the linear skate chassis 4 absorbs a change in the positional relationship of the linear skate chassis 4 with respect to the base chassis 2 by being bent in a caterpillar shape from the extended state or extending from the bent state. Try to maintain state.

As described above, the flexible plate 15 has the main portion 15a.
And the fixing portion 15b are both fixed to the linear skate cam plate 6 and the base chassis 2 using an adhesive or the like, and are connected to each other by the connecting portion 15c. Since the fixed state of the main portion 15a and the fixing portion 15b does not loosen or come off, a flexible plate pressing member which was conventionally required when fixing the flexible plate to the operating member and the fixing member, respectively. Can be eliminated, and the number of parts can be reduced.

As shown in FIGS. 3 and 4, the flexible plate 15 has rotation detection sensors 12, 12, a detection switch 13, light receiving elements 14, 14 and the like arranged on the linear skate chassis 2. Therefore, in order to make electrical wiring between these parts and other parts, the main chassis 15a and the fixed parts 15b, which are vertically overlapped with each other, are electrically connected to each other. A connecting portion 15c bridged at a lower portion of the side surface of the chassis 4, and as shown in FIGS. 1 and 2, a connecting portion for absorbing a displacement of the main portion 15a with respect to a fixed portion 15b caused by the movement of the linear skate chassis 4. The length 15c is optimally adjusted according to the moving distance of the linear skate chassis 4.

Therefore, even when the connecting portion 15c is in the most flexed (loose) state, that is, when the linear skate chassis 4 moves the tape cassette to the vicinity of the rotary head drum 3 as shown in FIG. The portion 15c is the base chassis 2
Not to protrude beyond the outer shape of the base chassis 2, and a space for storing the connecting portion 15 c in the most flexed state is not required. Because it is not necessary to provide
The space inside the base chassis 2 can be effectively used, and the size of the magnetic recording / reproducing device can be reduced.

It should be noted that the specific shapes and structures of the respective parts shown in the above-described embodiment are merely examples for embodying the present invention, and the technical features of the present invention are not limited thereto. The scope should not be construed as limiting.

[0037]

As described above, according to the present invention, a magnetic tape as a recording medium is pulled out from a tape cassette mounted on a linear skate chassis movable in a predetermined direction with respect to a base chassis and rotated. In a magnetic recording / reproducing apparatus which records or reproduces data by performing tape loading wound around a head drum, a linear skate chassis and a base chassis are connected by a flexible printed wiring board, and the flexible printed wiring board is a linear skate. Since the part fixed to the chassis and the part fixed to the base chassis are arranged in an upper and lower hierarchy and each part is connected by a connecting part curved like a hairpin, the space occupied by the connecting part Can be as small as possible

According to the second aspect of the present invention, since the notch for passing the connecting portion of the flexible printed wiring board is provided at the lower portion of the linear skate chassis, the storage space for the connecting portion of the flexible printed wiring board is provided. Can be eliminated, and the space that has become unnecessary can be effectively utilized, and the unnecessary space can be eliminated to reduce the size of the device.

According to the third aspect of the present invention, since the flexible printed wiring board is fixed to the linear skate chassis and the base chassis by using an adhesive, a pressing member or the like for fixing the flexible printed wiring board is provided. This is unnecessary, and the number of parts can be reduced.

[Brief description of the drawings]

1 shows an embodiment of the magnetic recording / reproducing apparatus of the present invention together with FIGS. 2 to 6, and is a perspective view showing a state of a linear skate chassis when a tape cassette is loaded.

FIG. 2 is a perspective view showing a state of the linear skate chassis when a tape cassette is not loaded.

FIG. 3 is a perspective view showing an arrangement state of a flexible printed wiring board with a part of a linear skate chassis removed.

FIG. 4 is an enlarged perspective view showing a main part.

FIG. 5 is a perspective view showing a state where the linear skate chassis is viewed from the bottom.

FIG. 6 is an enlarged perspective view showing a linear skate cam plate.

FIG. 7 shows a conventional magnetic recording / reproducing apparatus together with FIG. 8, and is a plan view showing a state of a flexible printed wiring board when a tape cassette is not loaded.

FIG. 8 is an enlarged plan view showing a state of the flexible printed wiring board when a tape cassette is loaded.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Magnetic recording / reproducing apparatus, 2 ... Base chassis, 3 ... Rotating head drum, 4 ... Linear skate chassis, 6c ... Notch, 15 ... Flexible printed wiring board, 15a ... Part fixed to the linear skate chassis, 15b ... Base Part fixed to the chassis, 15c ... connecting part

Claims (3)

[Claims] 1. A tape loading method in which a magnetic tape as a recording medium is pulled out from a tape cassette mounted on a linear skate chassis movable in a predetermined direction with respect to a base chassis and wound around a rotary head drum to perform data loading. In the magnetic recording / reproducing apparatus adapted to perform recording or reproduction of, the linear skate chassis and the base chassis are connected by a flexible printed wiring board, and the flexible printed wiring board has a portion fixed to the linear skate chassis. A magnetic recording / reproducing apparatus, wherein parts fixed to a base chassis are arranged in upper and lower hierarchies, and each part is connected by a connecting part curved like a hairpin. 2. The magnetic recording / reproducing apparatus according to claim 1, wherein a cutout for passing a connecting portion of the flexible printed wiring board is provided in a lower portion of the linear skate chassis. 3. The magnetic recording / reproducing apparatus according to claim 1, wherein the flexible printed wiring board is fixed to the linear skate chassis and the base chassis using an adhesive.