JPH0316057A - Cassette type tape player - Google Patents

Abstract

PURPOSE:To promote the function for holding a cassette under the stable condition by providing freely turnably a load member for giving a load to a holding plate. CONSTITUTION:The subject player is provided freely turnably with the load member 29 for giving the holding plate 14 a load against displacement force for displacing the holding plate 14. That is, the load member 29 is turned by operating force at the time of inserting the cassette and then at the time of ejecting operation, whereas a load is generated against external vibration and impact force in proportion to their strength. By this method, in a nonplay position where a cassette holder 5 is ascended, there is no fear that the cassette holder 5 is descended to a play position by turning the holding plate 14 inadvertently, so that the player safely is used.

Description

[Detailed description of the invention] Industrial applications The present application relates to a cassette tape player.

BACKGROUND OF THE INVENTION A cassette holder that removably holds a tape cassette and is movable up and down between a non-play position and a play position, and a cassette holder that is attached to the cassette holder so as to be movable in the direction of insertion and removal of a cassette I. and a slide piece having a retaining means that is removable from the cassette, and the slide piece is elastically biased in the direction of ejection of the cassette in a non-playing state,
A reversing spring is installed to be horizontally rotatable on the cassette holder, and a reversing spring that is reversely displaced in the process in which the slide piece moves in the same direction as the cassette is inserted to elastically bias the slide piece in the direction of insertion of the cassette. , a holding plate 1 which normally holds the cassette holder in a non-playing position, and when a cassette is inserted, is pressed by it and rotates horizontally to release the holding state and allow the cassette holder to move to the playing position. When a cassette is held in a non-playing position, the holding state is released due to external vibration, and the cassette holder moves to the playing position even if no cassette is inserted. In order to prevent this, a cassette holder holding mechanism is provided, in which the holding plate is provided with a protruding piece that abuts against the side surface of the slide piece and prevents horizontal rotation of the holding plate when the cassette holder is in a non-playing position. is Jitsukai Sho 6 3-4
It is known from the publication No. 7 4 3 8.

Problems to be Solved by the Invention Generally speaking, the cassette holder in this type of tape player includes a plate-shaped support member whose front end is rotatably supported and which moves vertically; The holding frame is connected to the end portion at the center of the upper surface and is capable of inserting and removing a cassette, which moves horizontally in the vertical direction as the support member tilts, and the holding plate is connected to the support member. One end of the plate is attached to a frame so as to be horizontally rotatable so as to overlap with the inner surface of the plate.

According to the above-mentioned known cassette holder holding mechanism, the projecting piece is provided on the free end side away from the stile attachment point of the horizontal rotation of the holding plate, so that the weight of the holding plate is absorbed by the free end. The protrusions of the holding plate tend to hang down more or less at the end, and if this tendency is large, it may get caught when inserting the cassette into the cassette holder in a non-playing state, making it difficult to insert the cassette. I'm used to getting in the way.

In addition, since the protrusion is extended to the holding plate, the area of the holding plate increases in length, and therefore, in order to allow sufficient rotation of the holding plate, a cutout is formed in the front half of the upper plate of the holding frame. When the reel hole is enlarged, the function of the cassette holder to hold the cassette in a stable state is impaired, for example, when moving from the non-playing state to the playing state, the cassette glue hole and this reel hole are removed. The reel shaft that engages with the reel shaft gets caught, causing the cassette to float, and there is a risk that the cassette pin 1 may become loose within the cassette holder due to external vibrations in the playing state.

Furthermore, inconveniences caused by a misalignment between the upward movement of the cassette holder when an eject operation is performed and the sliding movement of the slide piece in the direction of ejecting the cassette due to the biasing force of the reversing spring, such as when the cassette holder is not in play. If the eject operation is released due to the cassette ejecting while the slide piece is moving in the cassette ejecting direction without being held in position, the cassette holder moves downward and the cassette is separated from the reel base and cassette holder. Therefore, the present application aims to improve the above-mentioned defects of the conventional method.

Means for Solving iIn In order to achieve the above-mentioned object, the present application proposes a conventional structure in which the holding plate is connected to the holding plate and moves from the first position to the second position due to unnecessary vibration in the non-brake position of the cassette. The present invention is characterized by rotatably comprising a load member that applies a load to the holding plate resisting a displacement force that causes the holding plate to move, and furthermore, in the structure, the holding plate is attached to the second load member. It is characterized by comprising a locking piece that engages with the slide piece to prevent the cassette from moving in the ejection direction when the cassette is displaced to the position, and in the above, the tip of the action piece extending from the holding plate is The holding plate and the load member are connected to each other by being slidably inserted into an engagement hole bored in a hanging piece provided in the load member and protruding downward from an opening temporarily provided on the top of the cassette holder, or by connecting the holding plate and the load member. A vertical engagement piece is provided at the tip of the action piece extending from the cassette holder, and has an engagement groove that projects upward from the opening in the upper plate of the cassette holder and slidably engages with the edge of the opening, and By locking the locking piece in a locking groove provided in the load member, the holding plate and the load state are connected and prevented.

Function: When the cassette holder is in the non-playing raised position and external vibration or impact force acts on the holding plate and a rotational force is generated in the direction of releasing the holding state, the load member is Rotational force is generated in the direction that opposes the rotational force. Also, when a cassette is inserted into the cassette holder in the raised position, one side of the cassette is attached to the slide piece.
As the hole engages, the slide piece moves forward, and as it moves, the reversing spring reverses to one side, and due to its reversing elasticity, the cassette along with the slide piece automatically moves deeply into the cassette holder. do. Then, the holding plate horizontally rotates from the first position to the second position against the restoring spring, and in the raised position in the non-playing state,
The cassette holder, which was held horizontally via the holding plate, is released from its holding state and lowered to the playing position. On the other hand, as the holding plate rotates, the load member rotates in conjunction, and its locking piece locks on the slide piece when the cassette is inserted sufficiently deep into the cassette holder. Next, when an eject operation is performed from this state and the cassette holder is raised to the non-playing position by the known M mechanism, the holding plate rotates from the second position to the first position and is held in place again. The plate will hold the cassette holder in a horizontal position. On the other hand, when the cassette holder rises to the non-playing position and the holding plate is rotated to the first position by its restoring spring, the load member rotates accordingly and the locking piece is disengaged from the slide piece. , the slide piece is moved rearward along the guide groove by the biasing force of the reversing spring, and the cassette 7} is ejected.

Embodiment The embodiment of the present application will be described in detail below based on the drawings. FIGS. 1 and 2 are a plan view and a side view of the non-playing state in which the cassette holder is in the raised position, and FIGS. Figure 4 shows a plan view and a side view of the playing state in which the cassette holder is in the lowered position, where (1) is the container frame, and on one side there is an operating lever (2) for the tape fast forwarding mechanism, etc.
, (3) can be moved back and forth in a horizontal position, and the other side wall is equipped with an eject lever (4) that can be moved back and forth in a vertical position. (5〉) has a front frame (5) a whose front end sides are supported by pivots (6〉) on the container frame (1) so as to be tiltable in the vertical direction, and the front frame (5) a is connected to the rear edge and can move vertically in a horizontal state. A cassette holder that is long in the front-rear direction and consists of a rear frame (5)b, which has a guide groove (7) extending in the front-rear direction (left-right direction in the figure) in the center of the front frame (5>a). A slide piece (8) having a retaining part that engages with one of the glue holes when the cassette P is inserted into the cassette holder (5) is slidably attached to the guide groove (7). (9) has one end attached to the front frame (5).
) A is attached to the upper surface of the eject lever (4) via a pivot (10>), and is attached to the middle part of the eject lever (4).
1), which locks the other end of a connecting rod (12) supported by the connecting rod (12) and horizontally rotates; A reversing spring (13) is attached which normally presses the cassette P to the eject position of the cassette P. (14) is attached to the inner surface of the upper plate of the front frame (5) a of the cassette holder (5). (lO) is a flat holding plate attached horizontally rotatably, and has an operating piece (l5) on one side extending across the guide groove (7), and , a tongue piece (16) is provided on the outer side, and by abutting this tongue piece (16) against the side temporary upper edge of the container frame (l), the Cassette holder (5)
Hold it in a horizontal position where cassettes can be inserted and ejected.

(17) is attached to one side wall surface of the container frame (1) with a pivot (1
8) is a plate-shaped actuating member vertically movably pivotally connected to the front end of the eject lever (4) to the piece (17)a extending rearward (rightward in the figure) from the pivot point. A key-shaped locking piece (20) locks with a bent stopper piece (4)° to hold the eject lever (4) in the eject position against its biasing spring (19). , and a piece extending forward (leftward in the figure) from the pivot joint (
17) b includes the front frame (5) of the cassette holder (5).
) A locking pin (22) that locks with the notch groove (21) provided on the side surface of the a is provided, and the locking pin (22) is provided between the operating member (17) and the container frame (1). A spring (23) that applies rotational force to the actuating member (l7) is stretched so as to constantly press the actuating member (l7) downward, and the actuating member (l7) is Part (17) c is clearly visible. A sliding piece (25) is provided below the eject lever (4) in an L-shape and slides on the lower edge of the container frame (1), and the front end of the eject lever In the eject operation (4), the operated portion (
17) A horizontal plate-shaped acting portion (26) is integrally provided which acts with c to apply a rotational force in the backward direction to the actuating member (l7). (27) is a catch piece bent inward on the upper edge of the eject lever (4>), and (29) is the upper temporary surface of the front frame (5) a of the cassette 1/holder (5). A load member made of a relatively heavy plate that is rotatably attached to the front via a pivot (30), and is used for the large load portion of the mask (
29)a and a small auxiliary part (29)b of the mask, and the auxiliary part (29)b is provided with the holding plate (1).
A short connecting piece (3) connecting the tip of the working piece (15) of 4)
1), and in the playing state, the slide piece (8)
A long locking piece (32) is provided which locks ε and restrains its restoration. (34) is the restoring spring of the holding member (14), (35) is the reel sleeve provided on the vessel frame surface, (3
6) a head plate with a head (37); (38) a head plate with a head (37);
) is the motor.

Note that FIG. 7 is a perspective view showing the manner of connection between the holding plate (14) and the load member (29) in the above, and shows that the front frame of the cassette holder (5) is attached to the tip of the connection piece (3l). (5) A hanging piece (40) is provided that projects downward through the opening (39) in the upper plate of a, and this hanging piece (40) has the following features:
An engagement hole (41) is provided, into which the action piece (15) is slidably engaged.Then, from the non-playing state shown in Figs. When inserted into the rear frame (5)b of (5), one reel hole of the cassette P engages with the slide piece (8), and the slide piece (8) is inserted into the rear frame (5)b.
) moves forward, and as it moves, the reversal spring (13)
is reversed, and due to its reversal elasticity, the cassette l-P is automatically moved into the cassette holder (5) together with the slide piece (8>).
Penetrate deeply. Then, the action piece (15) crossing the guide groove (7) is pressed against the cassette P, so the holding plate 1-(14) moves counterclockwise in FIG. 1 against the restoring spring (34). As a result, the tongue piece (l6) comes off the upper edge of the side slope of the container frame (1), so that the cassette holder (16), which was held horizontally via the holding plate (14) in the non-playing state, The front frame (5) a of 5) is allowed to tilt downward. Therefore, the spring (23) causes the actuating member (17) to rotate counterclockwise in FIG. (4) is retreated by the spring (19>) to a position where it can be ejected, and the front frame (5) a is tilted downward through the engagement between the locking pin (22) and the notch (21). At the same time, the rear frame (5)b lowers horizontally.

On the other hand, as the holding plate 1- (14) rotates counterclockwise, the load member (29) rotates clockwise in FIG. 1, and the cassette P is inserted sufficiently deeply into the cassette holder (5). In this state, the locking piece (32) locks on the slide piece (8), and as shown in FIGS. 3 and 4, it enters the play state. Next, from the state shown in Figure 3.4, when the eject lever (4) is pushed forward against the spring (19), the connecting rod (12) causes the rotating part to move, as shown by the solid line in Figure 5. (
9〉 rotates and reverses beyond the dead point of the reversing spring (l3), and the slide piece (8) tries to move backward along the guide groove (7), but the slide piece (8) ,
Since it is locked to the locking piece (32) of the load member (29), its movement is restricted. On the other hand, Ijiekutoreba (4)
By the pushing operation of the operating member (26), the operating member (
The actuating member (17) comes into contact with the actuated portion (l7)C of the
7) is rotated clockwise in Fig. 4, so that
Through the engagement between the notch groove (21) and the locking pin (22),
As shown in Fig. 6, the front frame (of the case 7) holder (5)
5) a tilts upward and its rear frame (5) b
When the cassette holder (5) reaches the non-playing position, the holding plate 1- (14) rotates and its tongue (16) is placed next to the container frame (1) again. The cassette holder (5
) will be held horizontally. On the other hand, the cassette holder (5) reaches the non-playing position and the holding play} (1
4) is rotated by its restoring spring (34), the load member (29) connected to the tip of its operating piece (15) is rotated counterclockwise as shown by the imaginary line in FIG. As the locking piece (32) is rotated and disengaged from the slide piece (8), the slide piece (8) moves rearward along the guide groove (7) and ejects the cassette P.

When the eject lever (4) is released from this state, it is moved back by the spring (19) and the stopper (4) comes into contact with the stopper (20), causing the ejector lever (4) to be released as shown in Fig. 1.2. Restore to state. Furthermore, in the non-playing state shown in Figures 1 and 2, for example, a large impact force is applied from the front to the rear, resulting in a holding play} (
14), when a rotational force is applied in the direction (counterclockwise in Fig. 1) in which the tongue piece (16) separates from the upper edge of the side slope of the container frame (1), the load member (29) also acts in the same direction. A rotational force is applied, and therefore, the rotational force of the holding plate (14) is reduced by the rotational load of the load member (29) at the connection between the action piece (15) and the connection piece (31) of the holding plate (14). The holding plate will not rotate. Figure 8.9 shows the holding plate (14) as a load member (2).
9), and this connection is made by connecting the tip of the action piece (15) provided on the holding plate (14) to the front frame (5) a of the cassette holder (5). It protrudes upward from the provided opening (39), and the opening (39)
An engaging piece (43) having an engaging groove (42) that slidably engages with the peripheral edge of the load member (29) is provided, and this engaging piece (43) is connected to the connecting piece (3l) of the load member (29). Locking groove (44) provided in
It is made by being locked to.

Effects of the Invention As described above, according to the present application, the load member rotates due to the operating force when inserting the cassette and ejecting the cassette, so the rotational load can be almost ignored, and it is not affected by external vibration or impact force. Since a load corresponding to the strength is generated against the cassette holder, there is no risk of the holding plate rotating unnecessarily and lowering the cassette holder to the play position when the cassette holder is in the raised non-play position. , can be used safely. Further, according to the present application, since the load member is provided with a locking piece that locks with the slide piece, the slide piece can be restored without increasing the number of parts until the cassette holder is sufficiently raised by the eject operation. In addition to being able to prevent movement and ensure reliable ejection of the cassette, the structure described in claim 4 has advantages such as smooth horizontal rotation of the holding plate.

[Brief explanation of the drawing]

The drawings show an embodiment of the present application, and FIGS. 1 and 2 are an overall plan view and a side view in a non-playing state, FIGS. 3 and 4 are an overall plan view and a side view in a playing state, and FIG. Figures 5 and 6 are a partial plan view and side view of the state in the middle of operation;
FIG. 8 is a sectional view of another embodiment of the connected state, and FIG. 9 is an exploded perspective view thereof. In the figure, (1> is the container frame, (4) is the eject lever (5)
) is the cassette holder, (8) is the slide piece, (13)
is a reversing spring, (14) is a holding plate, (29) is a load member, (30) is a pivot, (31) is a connecting piece, (32) is a locking piece, (33) is an opening, and (34) is a hanging piece. The pieces (35) are engagement holes, (41) are engagement grooves, and (43) are locking grooves. Figure 3 Figure 5 Figure 6 Figure 8

Claims (4)

[Claims] (1) A cassette holder that removably holds a cassette and is movable up and down between a non-play position and a play position; a slide piece having an engaging means that can be engaged and detached from the cassette; and a slide piece that is reversed to one side in the process of moving the cassette together with the slide piece in the insertion direction, and elastically biases the slide piece in the cassette insertion direction; A reversing spring that is reversely displaced to the other side during an eject operation to bias the slide piece in the direction of ejecting the cassette; and a reversing spring that is horizontally rotatably attached to the cassette holder and normally holds the cassette holder in a non-playing position. a holding plate that is displaced between a first position and a second position in which the holding plate is rotated horizontally in conjunction with the insertion of the cassette to release the holding state and allow the cassette holder to move to the play position; In the tape player, the tape player is connected to the holding plate and applies a load to the holding plate that resists a displacement force that causes the holding plate to be displaced from a first position to a second position due to unnecessary vibration when the cassette is in a non-playing position. A cassette-type tape player characterized by having a rotatable load member. (2) Claim 1 characterized in that the load member is provided with a locking piece that engages with the slide piece when the holding plate is displaced to the second position to prevent movement of the cassette in the ejection direction. The cassette tape player described. (3) By slidably engaging the tip of the action piece extending from the holding plate into the engagement hole bored in the hanging piece provided in the load member and protruding downward from the opening in the upper plate of the cassette holder. 3. The cassette tape player according to claim 1, wherein the holding plate and the load member are connected to each other. (4) Vertical engagement having an engagement groove at the tip of the action piece extending from the holding plate that projects upward from the opening in the upper plate of the cassette holder and slidably engages the edge of the opening. 3. The cassette type tape player according to claim 1, wherein the holding plate and the loaded state are connected by providing a piece and locking the engaging piece in a locking groove provided in the load member.