JPS59112401A - Magnetic recording and reproducing device - Google Patents

Abstract

PURPOSE:To make a titled device small-sized and lightweight and also to execute smoothly the opening and closing operation by supporting the upper face panel so as to be freely openable and closable by a fulcrum in the vicinity of one end, and installing a cassette holder and a power source part to the inside surface near the opening and closing end part of the upper face panel, and to the end part of the opposite side, respectively. CONSTITUTION:An upper face panel 2 is installed to a body 1 of a magnetic recording and reproducing device, and the panel 2 is supported so as to be freely openable and closable by a fulcrum 3 in the vicinity of one end. A cassette holder 4 is provided to the inside surface near the opening and closing end part of the panel 2. A power source part 5 is installed attachably and detachably to the outside of the end part of the opposite side with the fulcrum 3 between against the opening and closing end part of the panel 2. The power source part 5 applies a load for opening against a load of the opening and closing end part side, which works in the closing direction, to the panel 2 which opens and closes centering around the fulcrum 3. Accordingly, an energizing force of a spring for energizing the panel 2 in the opening direction can be reduced, and by selecting an installed position and weight of the power source part 5, the panel 2 can be opened by only releasing its lock. Also, a high-class sense can be held without causing a shock by slowing an operation of the panel 2.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a magnetic recording/reproducing apparatus such as a cheap recorder or a video recorder.

Structure of the conventional example and its problems FIG. 1 is an external perspective view of a conventional magnetic recording/reproducing apparatus, showing a state in which the cassette holder (to) is fully raised from the main body Cη. (E) is the power supply section. Figure 2 is a cross-sectional view of the main unit υ, where ... indicates the chassis, and the upper side indicates the cassette housed inside the main unit. As you can see from both figures (1), the power supply section (to) is connected to the cassette holder (a).
It is located within 1) of the main body regardless of its operation. FIG. 3 shows the operating mechanism of this cassette holder (c).

The cassette holder (C) is attached to a side plate (G) in the main body for vertical movement, that is, for opening and closing, by a pair of intersecting links C+υ (to) at both sides. (b) is a pair of links that are connected at the intersection point in the center. Also, one link O1) is rotatably supported by the side plate (G) with a rotating shaft (31a) at one end, and is supported by a sliding shaft (31b) at the other end through a horizontally long elongated hole on the side of the cassette holder (C). (24a), and the other link (to) is slidably engaged with the rotation shaft (32a) at one end.
It is rotatably supported on the side surface of the cassette holder (c) at a), and is slidably engaged with the horizontally elongated hole (33a) of the side plate w at the sliding shaft (32b) at the other end. The cassette holder (c) opens when the pair of links 6v (to) rotate in the upright direction, and closes when they rotate in the fall down direction. (to) is the protrusion (31c) at the end of one link 6υ supported by the rotation shaft (31a) on the side plate ■ and the attachment part (33b) of the side plate
) (2) This is a tension spring that is stretched over the curve of the link G31) and urges the link G31) in the upright rotational direction. This tension spring (7) causes the pair of links 6υ (2) to stand up and the cassette folder (
c) to open it completely and keep it in that state from now on.
It requires a strong tensile force and becomes large, and the main body? Yu's little boy was an obstacle to weight reduction. Furthermore, if the spring force is increased, the operating time of the cassette holder (c) will be shortened, and the impact when fully opened will be increased. Therefore, it is not desirable in terms of the luxury of the product, and the provision of a tambar to prevent shocks has the disadvantage that it interferes with making the product smaller and lighter in appearance.

OBJECTS OF THE INVENTION The present invention aims to provide a magnetic recording/reproducing device that can be made even smaller and more lightweight by making simple improvements to the top panel.

Structure of the Invention In the magnetic recording/reproducing device of the present invention, a soil panel is supported in a manner that it can be opened and closed at a fulcrum near one end, and a cassette holder is mounted on the inner surface of the top panel near the opening/closing end, with this fulcrum in between, and a cassette holder is mounted on the inner surface of the top panel near the opening/closing end. The power supply unit is attached to each end (3), and the load on the cassette holder side of the two-sided panel is reduced by the load on the power supply unit side by burying the resistor. There is no need for a particularly strong biasing member, and the operation is smooth.

Description of examples Embodiments of the present invention will be described below based on the drawings.

4 to 6, (1) is the main body of the magnetic recording/reproducing device, (2) is the top panel, and (2) is the top panel.
) is supported by a fulcrum (3) near one end so as to be openable and closable. (4) is a cassette holder installed on the inner surface of the upper surface spring /L/(2) near the opening/closing end. A power supply unit (5) is removably attached to the outside of the opposite end of the top panel (2) across the fulcrum (3) from the opening/closing end. A load is applied to the upper surface spring /L' (2), which opens and closes around , in an attempt to open the spring, opposite to the load on the opening and closing end side that acts in the closing direction. Therefore, although not shown in the drawings, the biasing force of the spring that biases the upper surface spring 1v (2) in the opening direction is reduced, and a small spring is used for the suspension. If selected appropriately, the lock of the top spring /l/ (2) can be solved appropriately (
4) With just 1 extra, it can be opened without a spring, and -1
It is also possible to maintain a luxurious feel without causing impact by making the movement of the face panel (2) gentle and smooth. (6) is the main body (
The rotating cylinder (7) provided in 1) shows the cassette mounted on the cassette holder (4) of (2) with the open top spring /lz. Note that the upper surface spring/L of the power supply section (5)
As shown in Figure 7, the mounting surface for (2) is provided with convex portions (8) with trapezoidal tips on both sides, stoppers (9) at appropriate locations, and a contact point 00 in the center. On the mounting surface of the upper spring /L/(2) and the power supply part (5),
As shown in FIG. 8, on both sides there is a groove αυ that connects with the protrusion (8) in the lateral direction, a locking pawl a4 that engages with the stopper (9) at a position corresponding to the stopper (9), and the contact 00 in the center. A connecting contact σ1 is provided. Also, the upper spring /I/
(2) and the lower end of the mounting surface of the power supply section (5) are chamfered diagonally so that the upper spring/L' (2) can open and close, respectively, and the lower end of the power supply section (5) is As shown in the figure, the upper limit of opening of the upper spring/V (2) is restricted [7]. 9th
The figure shows the state of attachment of the upper panel (2) and the power supply section (5).

Effects of the Invention (5) According to the magnetic recording/reproducing apparatus of the present invention, as explained above, the upper panel, which is supported so as to be openable and closable at a fulcrum near one end, has a fulcrum placed between the fulcrum and the inner surface of the opening/closing end abutment. Since the power supply unit is attached to the opposite end of the cassette holder, the load on the power supply unit acts to release the load on the cassette holder side that closes the top panel. However, by appropriately adjusting the load on the power supply side, the upper panel that opens and closes with the cassette holster and the biasing members such as springs that bias the opening direction can be made smaller or unnecessary, which contributes to the miniaturization of the device. It's advantageous.

In addition, the opening and closing operations are smooth9, reducing the impact when opening and maintaining a luxurious feel. The structure is also quite simple.

[Brief explanation of drawings]

Fig. 1 is a perspective view of the conventional example, Fig. 2 is a sectional view, Fig. 3 is a main part 1 side view showing the operating mechanism of the cassette holder, Fig. 4 is a perspective view showing the embodiment of the present invention, Fig. 5 Figure 6 is a side view showing the operating state of the upper panel, Figures 7 and 8 are perspective views showing the structure of the power supply section, the upper panel, and the mounting section (6), respectively, and Figure 9 is a side view showing the power supply section and the mounting section (6). A sectional view showing the state of attachment to the upper panel. (2)...Top spring zlz, (3)...Fully point, (4
) ... Cassette Holter 1 (5) ... Power supply department representative Yoshihiro Morimoto (7) Fig. 3 Fig. 4 < Fig. 5 Fig. 7

Claims (1)

[Claims] ■ The top panel is supported by a fulcrum near one end so that it can be opened and closed.
A magnetic recording/reproducing device has a cassette halter attached to the inner surface of the top panel near the opening/closing end with this fulcrum in between, and a power source section attached to the opposite end.