JPH02230592A - Mechanical bracket - Google Patents

Abstract

PURPOSE:To reduce the man-hours of mounting work by providing a first mounting plane on which a recording medium driving mechanism is mounted, a second mounting plane on which a wiring board formed on the back plane of the first mounting plane is to be mounted, and an engaging part provided not in parallel with the first and second mounting plane and to be engaged with a case. CONSTITUTION:A tape mechanism 2 is placed on a mechanical bracket 1, and the guidance and positioning of it is performed by a perpendicular plane 1a, and both components are tightened fixedly with a screw 8, and next, the wiring boards 3 and 4 are tightened fixedly with the screw 8, and are connected electrically by piercing a connection pin 9 through the wiring boards 3 and 4. Next, the components are slided in a direction of arrow A, and the fixing claw 7a of a front case is inserted to the square hole 1f of the mechanical bracket 1, and both the components 7 and 1 are fixed temporarily, and an upper case 5 and a lower case 6 cover them from upper and lower sides, and the cases 5 and 6 and the boss 1e of the mechanical bracket 1 are tightened fixedly from an external plane, and also, the front case 7 and bracket 1 are tightened fixedly with the screw 8. In such a way, the man-hours of the mounting work can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a mechanical bracket for fixing a recording medium drive mechanism and a wiring board in a case of a recording medium reproducing apparatus.

[Conventional technology] Conventionally, in optical recording media playback devices such as compact disc players, and magnetic recording and playback devices that use tape as a recording medium such as tape players and DATs, a recording medium drive mechanism (hereinafter referred to as a tape mechanism) is installed inside the case. )
and a wiring board.

FIG. 4 shows the mounting structure of such a tape mechanism and the main wiring board to the lower case. It has become.

To assemble the structure shown in FIG. 4, first insert the locking pawl 31a cut out from the lower case 31 into the locking hole 32a provided in the main wiring board 32.
The main wiring board 32 is attached to the lower case 31 by bending the tip of the locking claw 31a. Next, the tape mechanism 33 is fixed to the lower case 31 and the main wiring board 32 with stud bolts 34. In this case, the stud bolt 34 is inserted into the bolt hole 32b provided in the main wiring board 32, and the stud bolt 34
The stud bolt 34 is tightened and fixed to the lower case 31 by inserting the screw 35 from the screw hole 31b provided in the lower case 31 with the end thereof in contact with the lower case 31-. With the tape mechanism 33 fixed to the lower case 31 and the main wiring board 32 in this manner, the tape mechanism 33 and the main wiring board 32 are connected.

By the way, the following shortcomings exist in the above-mentioned structure.

That is, since the main wiring board 32 and the tape mechanism 33, which are internal elements, are attached to the lower case 31 using separate structures, the number of work steps increases. In particular, when fixing the tape mechanism 33, the stud bolts 34 are inserted into the main wiring board 32, while the screws 35 are inserted from the bottom of the lower case 31.
In this work, it is necessary to once turn the lower case 31 over, which increases the number of work steps including the work to return it to its original position.

In addition, if internal elements are removed from the lower case 31, the lower case 31 will be equipped with a
Since the shape of the lower case 1 becomes complicated, there is also a drawback that the productivity of the lower case 31, which is usually made of sheet metal, is significantly reduced.

Furthermore, since the tape mechanism 33 can be connected to the main wiring board 32 or an amplifier wiring board (not shown) only after it is fixed to the lower case 31, it is necessary to connect these wiring boards to the tape mechanism 33 during the assembly process. Another disadvantage is that it is not possible to check the operation.

[Problems to be Solved by the Invention] The present invention has been proposed to solve the following two problems of the prior art, and its purpose is to easily combine a tape mechanism and a wiring board. It is an object of the present invention to provide an excellent mechanical bracket 1 that can be installed, reduces the number of man-hours for installation work, and contributes to ease of work.

[Means for Solving the Problems] A mechanical bracket I according to the present invention is formed on a first mounting surface for holding the recording medium drive mechanism and on the back surface of the first mounting surface, and is configured to attach the wiring board to the first mounting surface. The second mounting surface, which can be attached, and the first and second mounting surfaces are provided in non-parallel positions, and are characterized in that they include an engaging portion that engages with the case.

[Function] The function of the present invention having the above configuration is as follows.

That is, in the present invention, since the recording medium drive mechanism and the wiring board can be attached to both sides of the mechanical bracket 1, and the mechanical bracket can be attached to the case, the integrated internal structure can be attached to the case. Therefore, it is no longer necessary to attach each internal element to the case, reducing the number of work steps and making the work easier.

In addition, since the recording medium drive mechanism and the wiring board can be attached to both sides of the mechanical bracket, the recording medium drive mechanism and the wiring board must be connected at the stage of assembly and before attaching this structure to the case. There is also the advantage that the operation of the drive mechanism can be checked.

Furthermore, since the mechanical bracket is the only part that is directly attached to the case, the number of mounting parts required on the case is reduced, and the shape of the case can be simplified accordingly, reducing the production of cases that are normally made of sheet metal. There are also benefits that can be improved.

Furthermore, since the mechanical bracket is provided with a recessed part of the internal element and a recessed part of the case, it tends to have a complicated shape, but if it is made of resin, which is easy to mold, it is excellent in production.

[Embodiment] An embodiment of a magnetic recording/reproducing apparatus to which a mechanical bracket according to the present invention is applied will be specifically described below with reference to FIG.

In the embodiment shown in FIG. 1, a tape mechanism 2 and first and second wiring boards 3,
The case is composed of a flat upper case 5 and a lower case 6, and a U-shaped front case 7 having a front plate and left and right side plates. ing.

The mechanical bracket 1 is made of resin in the form of a flat plate, and vertical surfaces 1a for guiding and positioning the tape mechanism 2 are raised upward on the outer periphery of the three sides excluding the front part. , on the horizontal surface of mechanical bracket 1,
A screw hole 1b for attaching the tape mechanism 2 is formed. On the bottom surface of the mechanical bracket 1 are wiring boards 3 and 4.
Bosses lc and ld for mounting are provided vertically at several locations, respectively. At the rear of the mechanical bracket 1, bosses 1e for attaching the upper case 6 and the lower case 6 are vertically provided at two locations each on the upper and lower sides (the lower part is not shown). Square holes 1f for temporarily fixing the front case 7 are provided in a total of three locations on both rear sides and the front of the mechanical bracket 1 in the front-rear direction. Furthermore, screw holes 1g for mounting the front case 7 are provided at three locations below the square hole 1f at the front of the mechanical bracket 1.

Although not shown, a screw hole is provided on the lower surface of the tape mechanism 2 at a position corresponding to the screw hole 1b of the mechanical bracket 1.

The first and second wiring boards 3.4 have screw holes 3a and 3a, respectively, at positions corresponding to the bosses lc and ld of the mechanical bracket 1.
4a is provided.

The upper case 5 and the lower case 6 are made of sheet metal and have the same shape.
Screw holes 5a and 6a are provided at the locations, respectively.

The front case 7 is made of sheet metal, and the mechanical bracket 1
There are fixed claws 7a at three locations corresponding to the square holes 1f, respectively.
Further, screw holes 7b are provided at three locations corresponding to the screw holes 1g of the mechanical bracket 1.

Note that 8 in FIG. 1 is a mounting screw.

The assembly of this embodiment having the above configuration is performed as follows.

First, the tape mechanism 2 is placed on the mechanical bracket 1, and the vertical surface 1a of the mechanical bracket 1 guides and
After positioning, both parts are tightened and fixed with screws 8 in this state.

Next, the first wiring board 3 is tightened and fixed under the mechanical bracket 1 with screws 8, and then the second wiring board 4
Tighten and fix with screws 8.

Then, by penetrating the first and second wiring boards with a comb-type connecting pin 9, both boards are electrically connected.

The internal structure thus integrated is slid in the direction of arrow A and fixed to the front case 7. In this case, the fixing claw 7a of the front case 7 is inserted into the square hole 1f of the mechanical bracket 1 to temporarily fix the two. After that, cover the upper case 5 and the lower case 6 from above and below, and tighten the screws 8 from the outer surface of each case 5, 6.
and the boss 1e of the mechanical bracket 1 are tightened and fixed. Also, at this point, the front case 7 and mechanical bracket 1
are also tightened and fixed with screws 8.

Therefore, in this embodiment, the following effects can be obtained.

That is, in this embodiment, the tape mechanism 2 and the first and second wiring boards 3.4 are attached to both sides of the mechanical bracket 1, and the integrated internal structure is attached to the case. As shown in the figure, there is no need to attach the internal elements to the case one by one, which reduces the number of man-hours and makes the work easier.

In addition, at the stage where the tape mechanism 2 and the first and second wiring boards 3 and 4 are attached to both sides of the mechanical bracket 1 to assemble an integrated internal structure, the tape is attached before attaching this internal structure to the case. There is also the advantage that the mechanism 2 and the first and second wiring boards 3 and 4 can be connected and the operation of the tape mechanism 2 can be checked.

Furthermore, in the conventional technology in which internal elements were attached to the case one by one, the number of attachment parts provided on the case increased and the shape of the case became complicated, but in this embodiment, it is possible to attach them directly to the case. Since the only component is the mechanical bracket 1, the number of mounting parts to be installed on the case is reduced, which simplifies the shape of the case, and has the advantage of improving the production quality of cases made of sheet metal. .

In addition, the mechanical bracket 1 has a complicated shape because it has a mounting part for internal elements and a mounting part for the case.
Since it is made of resin that is easy to mold, it is excellent in production.

On the other hand, in this embodiment, since the vertical surface 1a for guiding and positioning the tape mechanism 2 is raised on the outer periphery of the mechanical bracket 1, 1, the vertical surface 1a makes it easy to guide and position the tape mechanism 2. 1. It also has the advantage of protecting the movable parts of the attached tape mechanism 1 and preventing foreign matter from entering the lower part of the tape mechanism 2. Also, due to this vertical equation 1a,
There is also the advantage that the mechanical strength of the mechanical bracket 1 can be increased.

Furthermore, in this embodiment, the first and second wiring boards 3
, 4 are fixed to the same mechanical brackets 1 and 1,
There is also an advantage that positioning between the two wiring boards 3 and 4 can be easily performed, and both the wiring boards 3 and 4 can be easily connected using the comb-type connecting pins 9.

Note that the present invention is not limited to the above embodiments,
For example, as shown in FIG. 2, even if a cylindrical case 11 with an opening on only one side is used, the tape mechanism 1-3 and the wiring board 14 are attached below the mechanical brackets 1 and 12. By sliding and inserting the internal structure from the opening surface of the case 11, it can be easily accessed and fixed.

Moreover, even if the opening surface of the case increases, the effects of the present invention will not change. For example, when the mechanical bracket 1 of the present invention is shaped so that it can stand on its own, the mechanical bracket 1 can be attached to one side of the case in advance, and the case can be assembled later, making it easy to assemble in the same way. Able to assemble equipment. FIG. 3 is a diagram showing such an embodiment, in which the mechanical bracket 22 that has accessed the tape mechanism 21 can be accessed to the lower case 23 using its fixed leg 22a, and then the upper case 24 and the rear A case 25 and a U-shaped freon case 26 are installed.

[Effects of the Invention] As explained above, when assembling a recording medium playback device using the mechanical bracket of the present invention, the tape mechanism and Because wiring boards can be easily installed all at once,
Excellent effects can be obtained in terms of reducing the number of man-hours and making the work easier.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view showing one embodiment of a magnetic recording/reproducing device to which the mechanical bracket I of the present invention is applied, FIGS. 2 and 3 are exploded perspective views showing different embodiments of the invention, and FIG. FIG. 1 is an exploded perspective view showing the assembled structure of a conventional magnetic recording/reproducing device. 1... Mechanical bracket 1., 1a... Vertical surface, 1b,
1g+ 3a, 4a, 5a. , 6a, 7b...screw hole, 1c, ld, le...boss, 1f...square hole, 2
...tape mechanism, 3, 4... wiring board, 5.
...Upper case, 6...Lower case, 7...Freon 1 case, 7a...Fixing claw. 11...Case, 12...Mechanical bracket 1, 13
... Tape mechanism, 14... Wiring board. 21...Tape mechanism, 22...Mechanical plaque 1., 22a...Fixed leg, 23...Lower case,
24... Upper case, 25... Rear case, 2
6... Freon 1 case. 31... Lower case, 31a... Locking claw, 31b
...Screw hole, 32...Main wiring board, 32a...
- Locking hole, 32b... Bolt hole, 33... Tape mechanism, 34... Stud bolt 1, 35... Screw.

Claims (1)

[Scope of Claims] A mechanical bracket for fixing a recording medium drive mechanism and a wiring board in a case, comprising: a first mounting surface on which the recording medium drive mechanism is mounted; A mechanical bracket comprising: a second mounting surface to which a wiring board is attached; and an engaging portion that engages with the case, the first and second mounting surfaces being provided in non-parallel positions.