JPH02201762A - Cassette loading device - Google Patents

Abstract

PURPOSE:To enable the standardization and to simplify its handling by forming a plane of a driven part of an opening and closing lid to be inclined so that its extension line intersects with an extension line of a surface of the opening and closing lid. CONSTITUTION:The plane of the driven part 33 of the opening and closing lid 30 provided freely turnably to a cassette inserting hole 22 of a cabinet 20 is formed so that its extension line intersects with an extension line of the surface of the opening and closing lid 30 at an angle THETA on the side of opening end of the opening and closing lid 30, and when the plane of the driven part 33 is disposed approximately horizontal under the opening state of the opening and closing lid 30, the surface of the opening and closing lid 30 is composed to be positioned in the opening direction by another angle THETA. Consequently, even in such a case when a turning fulcrum of the opening and closing lid 30 is needed to be moved, the disposition of a front loading mechanism such as a driving part 900, etc., is not required to be altered. By this method, the standardization is feasible, and hence the manufacturing handling can be simplified.

Description

Detailed Description of the Invention [Objective of the Invention] (Industrial Field of Application) The present invention relates to a magnetic recording/reproducing device such as a video tape recorder, and in particular, to a magnetic recording/reproducing device such as a video tape recorder, and in particular, to a magnetic recording/reproducing device such as a video tape recorder, etc. The present invention relates to a cassette loading device for loading into a cassette.

(Prior Art) Generally, in this type of cassette loading device, when a tape cassette is stored in a cassette holder in a substantially horizontal manner, a cassette transport mechanism is activated to transport the cassette holder and reach the top of the tape drive section. Then, the lowered and held tape cassette is loaded into the tape drive unit. At this time, the cassette lid of the tape cassette is opened, and the tape pulling member of the tape loading mechanism enters inside the wound magnetic tape, and the tape loading mechanism is driven here to perform tape loading.

The next requirement for such a cassette loading device is to have a simple structure, to simplify its handling, and to simplify its manufacture.

An example of such an object is an opening/closing lid that is provided in a cassette insertion slot of a cabinet so as to be openable and closable.

This opening/closing lid is arranged via a lid opening/closing mechanism, closes the cassette insertion opening until the tape cassette is inserted, and is forcibly pushed open when the tape cassette is stored.
After the tape cassette is stored and the cassette holder is transported to the tape drive unit, the cassette insertion port is closed again, and at the time of ejection (unloading), the cassette holder is ejected from the cassette loading position to the unloading position. will be opened automatically.

That is, as shown in FIG. 3, a cassette insertion opening 1a is provided on the front surface of the cabinet 1, corresponding to the cassette transport path, and an opening/closing lid 2 is provided on one side of the cassette insertion opening 1a.
is arranged so as to be openable and closable via the rotation shaft 2a. A spring force is applied to the opening/closing lid 2 in the closing direction (counterclockwise in the figure) via a spring member 2b, and when the tape cassette (hereinafter referred to as cassette) 3 is housed in a cassette holder (not shown), The tip of the cassette 3 is forcibly rotated and opened. The cassette holder (
The guide part 4 of the cassette holder (not shown) is inserted, and in conjunction with the driving of the loading cam 2, the guide part 4 of the cassette holder (not shown) moves to the cassette storage/unloading position in the direction of arrow A and the tape drive in the direction of arrow B. The cassette is guided and conveyed to the cassette loading position corresponding to the section. Further, a protrusion 2b for driving the lid to open and close is formed on the loading cam 2, and a lid driving member 5 is rotatably provided on a support (not shown) corresponding to the protrusion 2b. One end of this lid driving member 5 is engaged with a driven portion 2C formed on the opening/closing lid 2, and the lid driving member 5 is connected to a cassette loading position of a cassette holder (not shown) and a cassette loading position.
During transportation to the ejecting position, the driven part 2c of the opening/closing lid 2 is driven in the opening direction against the spring force of the spring part +4'2b to guide the ejection of the cassette holder (not shown). do. At this time, the opening/closing lid 2 is opened at an opening angle of 90° or more with respect to the front surface of the cabinet 1 so that the tip of the open end has a sufficient gap to the cassette holder. Guide the discharge.

However, in the above-mentioned cassette loading device, when it is necessary to change only the arrangement position of the opening/closing lid 2 due to the relationship between the driven part 2c and the lid surface, for example due to the design, etc. Since the opening angle changes in accordance with changes in the rotational fulcrum, there is a problem in that there are restrictions on the VTR that can be mounted. That is, since the conventional opening/closing lid 3 has its driven portion 2C formed approximately parallel to the lid surface,
If the rotational fulcrum of the opening/closing lid 2 is changed in the depth direction with respect to the front surface of the cabinet l-1 due to the relationship with the design, etc., the opening angle at which the lid is opened by the lid driving member 5 will be different, and the rotational fulcrum will change. The desired opening angle cannot be secured unless the opening/closing lid 2 is made to have a different size or the shape of the lid driving member 5 is changed in response to each case. For this reason, when the conventional opening/closing lid 2 is used, there are problems in that it is difficult to handle due to restrictions on its placement position, and it is subject to manufacturing restrictions such as freedom in cabinet design. was.

(Problems to be Solved by the Invention) As described above, the conventional cassette loading device has the problem that the opening/closing lid is restricted in the placement position, which makes handling the device troublesome and imposes restrictions on manufacturing. Was.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a cassette loading device that has a simple configuration, can be standardized, and can be easily handled.

[Structure of the Invention (Means for Solving the Problems) This invention provides a tape cassette that is movable between a first position where a tape cassette is stored and taken out and a second position where the tape cassette is loaded into a tape drive section. a cassette holder provided in the cabinet, a cassette transport mechanism for guiding the cassette holder to the first and second positions, a cassette insertion port provided in the cabinet corresponding to the first position, and a cassette insertion port provided in the cabinet corresponding to the first position; an opening/closing lid rotatably provided on a support member provided on one side; a driven part provided on the opening/closing lid and having a surface extending toward the open end of the lid; a biasing means configured to bias the cassette holder in the closing direction;
a lid driving member that comes into contact with a surface of the driven portion of the opening/closing lid during transportation to the position, and drives the opening/closing lid in the opening direction by resisting the urging force of the urging means. In the cassette loading device, the surface of the driven part of the opening/closing lid is inclined with respect to the opening/closing other surface such that the extension line intersects the extension line of the surface of the opening/closing lid in the direction of the open end of the lid. It was formed.

(Function) According to the above configuration, when the opening/closing lid is in its open state, the surface of the driven part is positioned approximately horizontally, and the surface of the opening/closing lid is held in a further open position, so that the opening/closing lid can be rotated. Even if the placement position of the fulcrum changes, the lid driving member always opens the lid at a constant opening angle. Therefore, even if the rotational fulcrum is changed due to design reasons, it can be applied, standardization can be achieved, and the handling can be made more convenient.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 1 shows the main parts of a cassette loading device according to an embodiment of the present invention, and FIG. 2 shows the front loading mechanism of a VTR in sections.

In FIG. 2, reference numerals 200 and 300 are chassis body plates erected at predetermined intervals, and are attached to a main chassis (not shown). The chassis body plate 200300 is the connecting plate 250
, 260, and one end of the connecting plate 250 is formed with a bent portion 251 that constitutes a locking member for an opening/closing lid, which will be described later. A cassette holder 00 is arranged between the chassis body plates 200 and 300. This cassette holder 100 is attached to the chassis body plates 200, 300 with an arrow
, are supported movably in the Y direction.

In the cassette holder 00, a lower plate 101, an upper plate 102, and side plates 10B and 104 form a substantially rectangular cassette holding portion. Pins PL and P2 are protruded from the outside of this side plate 103°]04 and correspond to each other on the same axis. Further, a pin P3 is provided on the outside of the side plate 104 so as to protrude substantially parallel to the pin P2.

The chassis body plate 200 is provided with the arrows X and Y.
An abbreviated-shaped guide groove 201 having a substantially horizontal portion and upper and lower portions is formed in correspondence with the above-mentioned side plate 1.
03 pin P1 is inserted. The chassis body plate 300 has an abbreviated guide groove 301. ．． 302 is formed corresponding to the guide groove 201 of the chassis body 200, and the pin P2. P
3 are inserted respectively. Therefore, the cassette holder 10
0 is moved in the directions of arrows X and Y while being supported by the chassis body plates 200 and 300. Cassette holder 10
0 is conveyed in the direction of arrow X, the tape cassette (hereinafter referred to as cassette) 10 (see Fig. 1) is accommodated in the cassette holder, or the cassette cassette 10 can be removed from the cassette storage/removal position. The state where the cassette is transported in the direction of arrow Y is the cassette loading position where the cassette is loaded into a tape drive unit (not shown).

Further, a shaft 303 is provided protruding from the chassis body plate 300,
A first loading cam 400 is rotatably attached to this shaft 303. The first loading cam 400 is provided with an arm portion 401, and a pin P2 of the side plate 104 is inserted into a hole 402 formed in the arm portion 401. Further, the first loading cam 400 includes a gear portion 40.
3 is formed, and a transmission gear 500 is meshed with this gear portion 403. The transmission gear 500 is connected to the chassis body plate 200.
300 is supported by a shaft 501 rotatably supported at both ends. A gear 502 is fitted to the negative end of the shaft 501, and a lid driving member 900, which will be described later, is rotatably supported. Therefore, the first loading cam 40
A rotational force of 0 is transmitted to gear 500, shaft 501, and gear 502.

On the other hand, a shaft 202 is provided protruding from the chassis body plate 200, and a second loading cam 600 is rotatably attached to the shaft 202. A gear portion 601 is formed on this second loading cam 600, and this gear portion 601
The gear 502 is meshed with the gear 502 . Further, an arm portion 602 is formed on the second loading cam 600. A hole 603 is formed in this arm 602, and the pin P1 of the side plate 103 is inserted into this hole 603. Therefore, the first and second loading cams 400, 600 can synchronously drive the cassette holder 100 via the pins PI, P2.

A third loading cam 700 is coaxially provided on the first loading cam 400 via a shaft 303. This third loading cam 700 is connected to the first loading cam 400 via a spring 710, and a gear portion 701 is formed around the third loading cam 700. A worm gear 800 is meshed with the gear portion 701 of the third loading cam 700.
A driving force from a driving source (not shown) is transmitted through the cam 00, and rotates the first and second loading cams 400°600.

Here, the lid driving member 900 whose drive is controlled in conjunction with the front loading mechanism will be explained using FIG. 1. FIG. 1 is a side view as seen from the Z direction shown in FIG. This figure shows the arrangement relationship between the lid drive system and the opening/closing lid 3o.

That is, the cabinet 2o is provided with a cassette insertion port 22 corresponding to the cassette storage/removal position.

A support member 23 is provided on one side of the cassette insertion opening 22, and a closing lid 30 is attached to the support member 23 on the shaft 3.
11 so as to be rotatable. This opening/closing lid 30 is biased to rotate in the counterclockwise direction (closing direction) in the figure via a spring member 32, and a driven portion 33 is connected to a driving portion 901 at one end of a lid driving member 900 at one end thereof. Correspondingly formed. When the open/close lid 30 is in an open state, this driven portion 33 has a surface that contacts the drive portion 901 of the lid drive member 900.
It is formed at a predetermined inclination angle θ with respect to the surface thereof, that is, the side exposed to the outside when closed.

A cam portion 902 is formed at the other end of the lid driving member 900, and a protrusion 604 formed on the second loading cam 600 faces the cam portion 902.

In the above configuration, the cassette holder 100 is shown in FIG.
), when the second loading cam 600 is rotated in the clockwise direction in the figure, the pin P1 is biased to move in the direction of the arrow Y through the arm 602, thereby storing and removing the cassette. The cassette 10 is transported to the position and, while waiting at this position, is accommodated or removed from the cassette insertion port 22 by the kneader. At this time, the cassette 10 enters and is housed in the cassette holder 100 by rotating the opening/closing lid 30 at its tip end clockwise in the figure against the spring force of the spring member 33 to open it. Here, the front loading mechanism is activated and the cassette 10
The cassette holder 100 holding the cassette holder 100 is transported in the direction of arrow Y. At this time, the second loading cam 600
As shown in Figure (b), the projection 604 urges the cam part 902 of the lid driving member 900 to rotate counterclockwise in the figure. As a result, the lid driving member 900 has its driving portion 9
01, the driven portion 33 of the opening/closing lid 30 is rotated counterclockwise in the figure. Here, the opening/closing lid 30 is rotated and biased until the surface of the driven portion 33 that contacts the driving portion 901 of the lid driving member 900 is located approximately horizontally, and the surface is rotated against the surface of the driven portion 33. It is further opened at an angle of eo in the opening direction. Then, when the cassette holder 100 is transported in the direction of arrow Y and reaches the tape loading position, and the cassette 10 is loaded into the tape drive section, the cam section 90 of the lid drive member 900
2 is separated from the projection 604 of the second loading cam 600, the opening/closing lid 30 is rotated counterclockwise in the figure by the spring force of the spring member 32. The cassette insertion port 22 is closed. Here, the tape drive section is driven to perform recording, playback, etc. of the VTR.

Then, when ejecting the above cassette 10,
First, when an eject operation is performed and unloading of the cassette 10 is started, the second loading cam 60
0 is reversed, and the arm portion 602 moves and urges the pin P1 in the arrow X direction to transport the cassette holder 100 in the arrow X direction.

At this time, the protrusion 604 of the second loading cam 600 comes into contact with the cam part 902 of the lid driving member 900 to urge the lid driving member 900 to rotate counterclockwise in the figure. Then, the lid driving member 900 rotates and urges the driven portion 33 of the opening/closing lid 30 in the counterclockwise direction in the figure against the spring force of the spring member 32 with its driving portion 901, and the opening/closing lid 30 is rotated again. Open,
Guides ejection of the cassette holder 100. When the cassette 10 of the cassette holder 100 is ejected to the bottom of the opening/closing lid 30, the projection 604 of the second loading cam 600 is separated from the cam section 902 of the lid driving member 900, but the opening/closing lid 30 10, the opened state is forcibly maintained, allowing ejection to the cassette storage/removal position of the cassette holder 100.

In this way, the cassette loading device is installed in the cabinet 20.
An opening/closing lid 3 rotatably provided in the cassette insertion slot 22 of
By forming the extension line of the surface of the driven part 33 of 0 to intersect with the extension line of the surface of the opening/closing lid 30 at an angle θ on the open end side of the opening/closing lid 30, when the opening/closing lid 30 is opened, When the surface of the driven part 33 is arranged substantially horizontally, the surface of the opening/closing lid 30 is positioned in the direction of opening further by an angle e. As a result, even if it becomes necessary to move the pivot point of the opening/closing lid 30 due to the relationship with the cabinet 20, for example, the opening/closing lid 30 can be moved without changing the arrangement of the front loading mechanism such as the drive member 900.
0 can be opened at an opening angle such that the open end of the cassette holder 100 always leaves a gap of at least a certain level. Therefore, it is possible to prevent accidents such as the opening/closing lid 30 colliding with the cassette holder 100 and being damaged during unloading of the cassette. Also, cabinet 20
Since it can be applied even in cases where the standards have changed, standardization can be achieved, and handling in production can be simplified.

In the above embodiment, the support member 23 of the opening/closing lid 30 is provided in the cabinet 20, but the cassette holder 100
Of course, it is also possible to provide the same.

In addition, the present invention is not limited to the above embodiments, but also includes
It goes without saying that various modifications can be made without departing from the spirit of the invention.

[Effects of the Invention] As detailed above, the present invention provides a cassette loading device that has a simple configuration, can be standardized, and can be handled easily. be able to.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the main parts of a cassette loading device according to an embodiment of the present invention, FIG. 2 is a diagram showing the front loading mechanism of FIG. 1, and FIG. 3 is a diagram showing the conventional problems. It is a figure shown for explanation. 10...cassette, 20...cabinet, 22.
...Cassette insertion slot, 30... Opening/closing lid, 31... Rotating shaft, 32... Spring member, 33... Driven part, 10
0...Cassette holder, 200,300...Chassis body plate, P1-P3...Pin, 201,301,3
02... Guide groove, 202, 303... Shaft, 400,
600°700...First to third loading cams, 403.601,701...Gear portion, 401°60
2...Arm part, 402.603...Hole part, 604...
-Protrusion, 900... Lid driving member, 901... Drive section, 902... Cam section. Applicant's agent Patent attorney Takehiko Suzue Figure-499=

Claims (1)

[Scope of Claims] A cassette holder provided movably between a first position where a tape cassette is stored and taken out and a second position where the tape cassette is loaded into a tape drive unit; A cassette transport mechanism for guiding the cassette to the first and second positions, a cassette insertion opening provided in the cabinet corresponding to the first position, and a support member provided on one side of the cassette insertion opening for rotation. a freely provided opening/closing lid; a driven part provided on the opening/closing lid and having a surface extending toward the open end of the lid; urging means for urging the opening/closing lid in a closing direction; Linked to the cassette transfer mechanism,
While the cassette celler is being conveyed from the second position to the first position, the opening/closing lid comes into contact with the surface of the driven part of the opening/closing lid, and is driven to open the opening/closing lid against the urging force of the urging means. In a cassette loading device equipped with a lid driving member that is driven in the direction, the surface of the driven portion of the opening/closing lid is opened/closed so that an extension line intersects an extension line of the surface of the opening/closing lid in the direction of the open end of the lid. A cassette loading device characterized in that the cassette loading device is formed with an inclination relative to other surfaces.