JPH0950690A - Recording or reproducing device and cover used for the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate automation of fitting a reel base cover onto a chassis and yet to surely connect up wiring on both sides. SOLUTION: This device is equipped with a slide chassis 2 where reel bases 7 and 8 are installed, the reel base cover 30 fitted on the slide chassis 2 and a light emitting element 17 for detecting the end of a tape installed on this cover 30. The end of an FPC 40 extended from the light emitting element 17 on the cover 30 is bent and stuck to the back surface of a fitting part 30a of the cover 30, and the cover 30 is fitted onto the slide chassis 2 to connect wiring of the FPC 40 with wiring of an FPC 50 on the slide chassis 2. At this time, a fixing screw 16a is arranged between a projected part formed on a contact surface of the fitting part 30a with the side chassis 2 and a contact commencement part to fix up the cover 30.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording or reproducing apparatus in which a tape end detecting element is installed on a reel base cover, for example, in a VTR or the like.

[0002]

2. Description of the Related Art FIGS. 5 and 6 show a VTR in which a mounted cassette approaches a rotating drum. That is, 1 is a main chassis which is a first chassis, 2 is a slide chassis which is a second chassis, and the slide chassis 2 is configured to be slidable on the main chassis 1. Reference numeral 3 is a rotary drum arranged on the main chassis 1, and has a magnetic head for recording or reproducing mounted thereon.
4 is a capstan protruding above the main chassis 1, 5 and 6 are tape guide members of tape loading means, and 7
Reference numerals 8 and 8 are a pair of reel stands installed on the slide chassis 2. A tape cassette 9 stores a pair of reels 11 and 12 around which a magnetic tape 10 is wound.

In the VTR, as shown in FIG. 5, first, the cassette 9 is mounted on the slide chassis 2 and the reels 11 and 12 are fitted on the reel stands 7 and 8, and then the slide chassis 2 is mounted. Is slid in the direction of the rotary drum 3 relative to the main chassis 1, and the tape 10 is pulled out from the opening 9a of the cassette 9 by the tape guide members 5 and 6. Finally, as shown in FIG. 6, at least a part of the rotary drum 3 is relatively inserted into the opening 9 a of the cassette 9, and the tape 10 has a predetermined path including the peripheral surface of the rotary drum 3. Loaded on. In this state, the tape 10 is pressed against the capstan 4 by a pinch roller (not shown), the tape 10 is run, and desired recording or reproduction is performed by the head of the rotary drum 3.

By the way, the VTR is usually provided with a detection element for detecting the tape end. Here, in the VTR of the type in which the slide chassis 2 moves with respect to the main chassis 1 as described above, in general, the reel base driving unit is arranged in the space between the reel bases 7 and 8 on the slide chassis 2. The following structure is adopted as the installation location of the tape end detection element and its wiring structure.

That is, in FIG. 7, the slide chassis 2 on which the supply reel base 7 and the take-up reel base 8 are installed is different from the main chassis 1 on which the rotary drum 3 is arranged, with respect to the guide pins 1a to 1d and the guide grooves. It is configured to be slidable by engaging with 2a to 2d. Reference numeral 13 is a drive gear that is rotationally driven on the main chassis 1, and 14 is an idler gear that is oscillated in conjunction with the rotation of the drive gear 13 on the slide chassis 2. The rotation of the drive gear 13 is a supply reel via the idler gear 14. It is selectively transmitted to the table 7 or the take-up reel table 8.

A reel base cover 15 covers the idler gear 14 and is fixed on the slide chassis 2 by fixing screws 16a to 16d at four corners. Reference numeral 17 denotes a light emitting element for tape end detection, which is installed in the center front portion on the reel base cover 15. Reference numerals 18 and 19 denote a pair of light receiving elements corresponding to the light emitting element 17, which are the slide chassis 2
It is installed on top. Reference numeral 20 denotes a flexible film-shaped wiring material, a so-called flexible printed wiring board (hereinafter referred to as a cover FPC), which is disposed on the reel stand cover 15, and has one end connected to the light emitting element 17. Reference numeral 21 denotes an FPC (hereinafter, referred to as chassis FPC) arranged on the slide chassis 2, one end of which is not shown is connected to a circuit. Then, on the slide chassis 2, the wiring at the other end of the cover FPC 20 is connected to the wiring at the other end of the chassis FPC 21 by soldering 22.

[0007]

In the VTR, the installation location of the light emitting element 17 is usually defined by the unified format of the cassette 9. In the above-mentioned VTR, since the cassette 9 is moved together with the slide chassis 2, it is necessary to install the light emitting element 17 on the moving side. However, since the idler gear 14 and the like are arranged on the slide chassis 2, the light emitting element 17 is attached to the reel base cover 15.
There is no choice but to install it on top. Further, the cover FPC 20 for wiring the light emitting element 17 has to be extended above the reel base cover 15 in order to prevent contact with the idler gear 14 and the like.

For this reason, the installation location of the light emitting element 17 and the wiring structure thereof are as described above. However, in such a conventional example, when the reel base cover 15 is mounted on the slide chassis 2, soldering 22 between the wiring of the cover FPC 20 and the wiring of the chassis FPC 21 is required, and thus there is a drawback that automation is difficult. It was

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a recording or reproducing apparatus which facilitates the automation of the mounting of the reel base cover on the chassis with sure setting of the height, and can surely connect both wirings. To do.

[0010]

In order to achieve the above object, the present invention is a recording or reproducing apparatus using a cassette in which a tape wound around a pair of reels is housed. And a pair of reel bases each having an engaging portion that engages with the reel, and at least the engaging portion of the reel base is exposed and is arranged between the pair of reel bases. A cover having at least one abutting portion fixed, a sensor capable of detecting an end of the tape, at least a part of which is provided on the cover; and a sensor provided on the chassis,
A first wiring portion, one end portion of which is arranged at a position facing the contact portion of the cover; and a first wiring portion which is provided on the cover,
One end is connected to a part of the sensor, and the other end is a second wiring part arranged between the contact part and one end of the first wiring part. A protrusion for connecting one end of the first wiring portion and the other end of the second wiring portion to a contact surface between the contact portion of the cover and the chassis. A recording / reproducing device is provided in which a fixing member that has a portion and that fixes the contact portion to the chassis is disposed between the convex portion and the contact start portion of the contact portion.

From another point of view, the present invention is a recording or reproducing apparatus using a cassette in which a tape wound around a pair of reels is housed, the first chassis and the first chassis.
A second chassis movable relative to the other chassis, a pair of reel bases provided on the second chassis and having engaging portions that engage with the reels, and at least the reels. A cover having at least one abutting portion fixed to the second chassis, which is arranged between the pair of reel bases with the engaging portion of the base exposed, and an end portion of the tape can be detected. Yes, at least a part of the sensor is provided on the cover, and the first wiring provided on the second chassis, one end of which is arranged at a position facing the contact portion of the cover. Section, and one end portion of which is provided on the cover, is connected to a part of the sensor, and the other end portion is disposed between the contact portion and one end portion of the first wiring portion. And a second wiring part that is Has a convex portion for connecting one end of the first wiring portion and the other end of the second wiring portion on a contact surface between the contact portion and the second chassis. ,
A recording or reproducing apparatus is presented in which a fixing member that fixes the contact portion to the second chassis is arranged between the convex portion and the contact start portion of the contact portion.

According to another aspect of the present invention, there is provided a cover disposed between a pair of reel stands provided on a chassis of a recording or reproducing apparatus, the cover being an upper plate and a cross section L connected to the upper plate. At least one fixing portion formed in a letter shape, a convex portion provided on a surface side of the fixing portion that abuts the chassis, and a corner portion and the convex portion of the fixing portion formed in an L-shaped cross section. And a hole into which a fixing member for fixing the fixing part to the chassis is inserted, the cover being presented.

In the present invention having the above-described structure, when the reel base cover is mounted on the chassis, the reel base cover is provided with the contact portion provided on the contact surface between the reel base cover and the chassis. Since the wiring and the wiring on the chassis are connected to each other, it is not necessary to solder the wirings at the time of mounting.

Further, since the reel base cover is fixed to the chassis by disposing the fixing member between the convex portion and the contact starting portion, the contact starting portion and the convex portion are closely attached to each other on the contact surface. Therefore, the contact between the wirings at the contact portion is stabilized, and the height of the reel base cover, that is, the height of the tape end detection element can be accurately set.

Other objects and features of the present invention will become more apparent from the following description of the embodiments and the drawings.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to FIG.
~ It demonstrates with reference to FIG. Note that, in the present embodiment, substantially the same components as those of the example described with reference to FIG. Further, the overall configuration of the VTR in the present embodiment can employ substantially the same configuration as the examples described in FIGS. 5 and 6.

In FIG. 1, a reel base cover 30 covering the idler gear 14 and having a light receiving element 17 installed thereon.
Are fixing screws 16 at the mounting portions 30a to 30d at the four corners.
It is fixed on the slide chassis 2 by a to 16d. As shown in FIGS. 2 to 4, the mounting portion 30a of the reel base cover 30 is bent into a substantially L shape, and a screw insertion hole 31 is provided. The same applies to the other mounting portions 30c to 30d. In particular, a pair of convex portions 32a and 32b are provided near the tip of the contact surface 32 which is the back surface of the mounting portion 30a. Further, as shown in FIG. 4, the screw insertion hole 31 has a contact start portion 32 which is a bent base portion of the contact surface 32.
It is provided in a graphic area 33 surrounded by c and the convex portions 32a and 32b.

Further, the screw insertion hole 31 will be described in detail. As shown in FIG. 2, the screw insertion hole 31 has a center S whose abutment start portion 32c and convex portions 32a and 32b in the longitudinal direction of the mounting portion 30a (left and right directions in the drawing).
It is formed on the side of the contact start portion 32c from the midpoint m of.
With this configuration, the height h of the reel stand cover 30 described later
Can be set accurately. In other words, these configurations mean that, in the longitudinal direction of the mounting portion 30a, the convex portions 32a and 32b are formed on the tip end side of the mounting portion 30a with respect to the position where the screw insertion hole 31 is formed. It can be said that it is effective to form the protrusions 32a and 32b at positions that are twice or more the distance between the contact start portion 32c and the center S of the screw insertion hole 31.

Next, in FIG. 1, an FPC (hereinafter referred to as a cover FPC) 40 attached on the reel base cover 30.
The wiring patterns 40a and 40b are connected to the light receiving element 17 at one end thereof. Then, as shown in FIGS. 2 to 4, the other end where the width of the cover FPC 40 is widened wraps around the abutting surface 32 of the mounting portion 30a of the reel base cover 30, and is attached to both front and back surfaces of the mounting portion 30a. It is attached. Here, in the wiring patterns 40a and 40b whose width is expanded at the other end of the cover FPC 40, the exposed portions (conductive portions) 40a 'and 40b' at the tips correspond to the convex portions 32a and 32b of the contact surface 32. There is. As shown in FIG. 3, the cover FPC 40 corresponding to the periphery of the screw insertion hole 31 of the mounting portion 30a is provided with an escape hole 41 larger than the head of the fixed screw 16a between the wiring patterns 40a and 40b. .

On the other hand, an FPC (hereinafter referred to as chassis FPC) 50 attached on the slide chassis 2 has one end (not shown) connected to a circuit and has wiring patterns 50a and 50a.
Exposed parts (conductive parts) 50a 'and 50b' at the other end of b
Are arranged corresponding to the convex portions 32a and 32b of the contact surface 32 of the reel base cover 30.

In the above structure, as shown in FIG. 2, the mounting portion 30a of the reel base cover 30 is fixed by the fixing screw 16a.
Is fastened to the screw screw hole 2a of the slide chassis 2,
The contact surface 32 of the mounting portion 30a is pressed against the slide chassis 2 and the chassis FPC 50 at the contact start portion 32c and the protrusions 32a and 32b. As a result, the reel base cover 30 is fixed to the slide chassis 2 and
The wiring pattern exposed portions 40a 'and 40b' of the cover FPC 40 and the wiring pattern exposed portions 50a 'and 50b' of the chassis FPC 50 are electrically connected, respectively.

At the same time when the reel stand cover 30 is mounted on the slide chassis 2 as described above, at the same time, the cover FPC 40 is attached.
Since the wiring of 1 and the wiring of the chassis FPC 50 are connected to each other, it is not necessary to solder the wiring to each other at the time of mounting, and the mounting can be easily automated.

Further, in particular, the reel base cover 30 is fixed to the slide chassis 2 by the contact start portion 32c and the convex portion 32a.
And 32b are fastened in the region 33 of the contact surface 32, the contact start portion 32c and the protrusions 32a and 32b are brought into close contact with the slide chassis 2 side, so that the wirings are stably contacted. In addition, the height of the reel stand cover 30 (h in FIG. 2), that is, the height of the light emitting element 17 can be accurately set.

In FIG. 2, the chassis FPC50
Is a contact start portion 32c of the contact surface 32 of the reel base cover 30.
The structure may be extended to and sandwiched between the contact start portion 32c and the slide chassis 2. Also, the reel stand cover 30
Although the protrusions 32a and 32b are provided on the contact surface 32 of, the structure may be such that such protrusions are provided on the slide chassis 2. Further, substantially the same effect can be expected by forming conductive protrusions on the wiring pattern exposed portions 40a ', 40b' of the cover FPC 40 or the wiring pattern exposed portions 50a ', 50b' of the chassis FPC50.

Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various effective modifications and applications are possible based on the technical idea of the present invention. For example, in the embodiment, the wirings are connected to each other at the convex portion of the contact surface in the mounting portion of the reel base cover, but the contact portion in the present invention means the contact surface between the reel base cover and the chassis. Since the wirings are connected to each other, the contact portion does not necessarily have to have a special shape, and the wirings may be in contact with each other on a flat surface. The present invention also includes a configuration in which the convex portion of the contact portion is brought into contact with the chassis via another member, for example, a substrate or the like.

Further, although the FPC is used for wiring in the embodiment, other wiring materials such as wires may be used. Further, in the embodiment, the tape end detection element on the reel base cover is a light emitting element, but it may be a light receiving element or various other elements. Note that the present invention can be effectively applied to a configuration in which the reel base cover that covers the reel base driving unit is mounted on the chassis even in the configuration without the slide chassis as in the embodiment.

[0027]

As described above, according to the present invention,
By providing a contact portion for connecting the wiring on the reel base cover and the wiring on the chassis on the contact surface between the reel base cover and the chassis, when the reel base cover is mounted on the chassis, the wirings are simultaneously connected to each other. Since they are connected and soldering of the wirings is not required, automation can be facilitated and the assembly process can be reduced. In addition, since it is not necessary to remove the wiring connection part for inspection and repair,
It is extremely easy to attach and detach the reel base cover.

Further, since the reel base cover is fixed to the chassis by arranging the fixing member between the convex portion and the contact starting portion, the contact starting portion and the convex portion closely contact each other on the contact surface. Therefore, it is possible to electrically stably connect the wirings at the abutting part and to accurately set the height of the reel base cover, that is, the height of the tape end detection element, which is more suitable for automatic assembly. With such a structure, there are advantages such as high operational reliability.

[Brief description of drawings]

FIG. 1 is a plan view showing a reel base cover mounting structure and a tape end detection element wiring connection structure in an embodiment in which the present invention is applied to a VTR.

FIG. 2 is a side view of a main part in the above embodiment.

FIG. 3 is an upper perspective view of a main part in the above embodiment.

FIG. 4 is a lower perspective view of a main part in the above embodiment.

FIG. 5 is a schematic plan view showing an unloading state in a conventional VTR.

FIG. 6 is a schematic plan view showing a loading completed state in the VTR.

FIG. 7 is a plan view showing a reel base cover mounting structure and a tape end detection element wiring connection structure in the VTR.

[Explanation of symbols]

 1 main chassis (1st chassis) 2 slide chassis (2nd chassis) 3 rotating drum 7 supply reel stand 8 take-up reel stand 9 tape cassette 10 magnetic tape 11, 12 reel 13 drive gear 14 idler gear 16a-16d fixing screw 17 Light-Emitting Element 18, 19 Light-Receiving Element 30 Reel Stand Cover 30a-30d Attachment Part 31 Screw Insertion Hole 32 Contact Surface 32a, 32b Convex Part 32c Contact Start Part 33 Graphic Area 40 Cover FPC 40a, 40b Wiring Pattern 40a ', 40b ′ Wiring pattern exposed portion 41 Escape hole 50 Chassis FPC 50a, 50b Wiring pattern 50a ′, 50b ′ Wiring pattern exposed portion

Claims (13)

[Claims] 1. A recording or reproducing apparatus using a cassette in which a tape wound around a pair of reels is stored, comprising: a chassis; and an engaging portion provided on the chassis and engaging with the reel. A pair of reel bases having: a cover having at least one abutting portion that is disposed between the pair of reel bases, exposing at least the engaging portion of the reel base, and fixed to the chassis; A sensor capable of detecting an end portion of the tape, at least a part of which is provided on the cover, and a sensor provided on the chassis, and one end portion of which is arranged at a position facing the contact portion of the cover. And a first wiring portion provided on the cover, one end portion of which is connected to a part of the sensor, and the other end portion of which is the contact portion and one end portion of the first wiring portion. Placed between and 2 wiring section,
And has a contact surface between the contact portion of the cover and the chassis,
There is a convex portion that connects one end of the first wiring portion and the other end of the second wiring portion, and between the convex portion and the contact start portion of the contact portion. A recording or reproducing apparatus, wherein a fixing member for fixing the contact portion to the chassis is arranged. 2. The abutting surface is provided with two of the convex portions, and the abutting portion is formed within a region surrounded by the two convex portions and the abutting start portion of the abutting portion. The recording or reproducing apparatus according to claim 1, wherein the recording or reproducing apparatus is fixed to a chassis. 3. A recording or reproducing apparatus using a cassette in which tapes wound on a pair of reels are housed, the first chassis being relatively movable with respect to the first chassis. A second chassis; a pair of reel stands provided on the second chassis, each having an engaging section for engaging with the reel; and a pair exposing at least the engaging section of the reel stand. A cover having at least one abutting portion fixed between the reel bases and fixed to the second chassis; and an end portion of the tape that can be detected, and at least a part of the cover is provided on the cover. A sensor, a first wiring portion provided on the second chassis, one end portion of which is arranged at a position facing the contact portion of the cover, and one of the first wiring portion provided on the cover. The end is Is connected to a part of, a second wiring portion which the other end is disposed between the one end portion of said first wiring portion and the contact portion,
A contact surface between the contact portion of the cover and the second chassis, one end portion of the first wiring portion and the other end portion of the second wiring portion. And a fixing member for fixing the contact portion to the second chassis is disposed between the protrusion and the contact start portion of the contact portion. Recording or reproducing device. 4. The abutting surface is provided with two of the convex portions, and the abutting portion is formed within a region surrounded by the two convex portions and the abutting start portion of the abutting portion. The recording or reproducing apparatus according to claim 3, wherein the recording or reproducing apparatus is fixed to the second chassis. 5. The recording or reproducing apparatus according to claim 1, wherein the contact portion is formed in an L-shaped cross section and is provided so as to be connected to an upper surface portion of the cover. . 6. The recording or reproducing apparatus according to claim 5, wherein the contact start portion of the contact portion is a corner of the L-shape. 7. The fixing member is arranged closer to the contact starting portion than a position half the distance between the convex portion and the contact starting portion of the contact portion. The recording or reproducing apparatus according to item 3. 8. The recording or reproducing apparatus according to claim 1, wherein the convex portion is provided on the contact portion. 9. The recording or reproducing apparatus according to claim 1, wherein the convex portion is provided on the chassis side. 10. The part of the sensor to which the second wiring portion is connected is a light emitting element.
Or the recording or reproducing apparatus according to 3. 11. A cover disposed between a pair of reel stands provided on a chassis of a recording or reproducing apparatus, the cover including an upper plate and at least an L-shaped section connected to the upper plate. One fixing portion, a convex portion provided on a surface side of the fixing portion that abuts on the chassis, and formed between a corner portion and the convex portion of the fixing portion formed in an L-shaped cross section, And a hole into which a fixing member for fixing the fixing portion to the chassis is inserted. 12. The two protrusions are provided, and the hole is formed in a region surrounded by the two protrusions and a corner of the fixing portion. 1
The cover described in 1. 13. The cover according to claim 11, wherein the hole is formed closer to the corner than a position half the distance between the protrusion and the corner of the fixing portion.