JPH0119256Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a door mechanism for mounting a cassette in a cassette tape recorder.

A cassette tape recorder generally includes a tape recorder main body housed in a housing, and includes a half pocket that is rotatably attached to the tape recorder main body in order to allow the cassette half to be attached to and removed from the tape recorder main body. For this purpose, the housing is provided with an opening through which the half pocket enters and exits, and a door panel is attached to the front surface of the half pocket that closes the opening of the housing when the half pocket is closed for mounting the cassette half. This door panel is
Together with the other panels on the front side of the cassette tape recorder where the operating section, display section, etc. are provided, it constitutes the appearance plate of the housing, and occupies a large position in terms of design.

By the way, in conventional cassette tape recorders, the door panel is attached directly to the half pocket, and the opening of the housing is opened and closed as the half pocket is opened and closed. Therefore, if the installation position of the tape recorder body in the housing shifts due to parts machining errors, etc., the position of the door panel will shift as well, and the aesthetic appearance of the display panel that is constructed with other panels will be impaired. I had a problem with it becoming like this. Therefore, it was considered that the position of the door panel could be adjusted by deforming a part of the attachment part of the half pocket, but this method was difficult to work with and also resulted in a lack of uniformity in the finished product. There was a problem.

This invention was made in view of the above points,
The purpose is to provide a door mechanism for installing a cassette that allows the door panel to be opened and closed at a predetermined position without having to correct the position of the door panel even if the half pocket is misaligned. It is in.

Embodiments of the present invention shown in the drawings will be described below.

FIG. 1 is a partially exploded perspective view of the door mechanism, which is constructed by assembling a half pocket A, a pocket frame B, and a door panel C. The half pocket A has a left frame 1 and a right frame 2 separated by the width in the longitudinal direction of the cassette half, and each pivot point 1
A, 1b are pivotably supported on a tape recorder main body (not shown) so as to be rotatably openable and closable.

Pocket frame B is formed into a frame shape with a window in the center by punching and bending an iron plate with a wall thickness of about 1 mm, and is fixedly attached to half pocket A as a whole.

As described above, the half pocket A with the pocket frame B attached to the front face faces the opening 3 of the panel stay D that forms the housing together with the main chassis (not shown), and is fixedly attached within the housing. A door panel C is attached to the half pocket A and pocket frame B of the tape recorder main body from the outside of the opening 3. For this purpose, an engaging protrusion 4 for engaging with the door panel C is provided on the left frame 1 of the half pocket A, and an engaging protrusion 5 is provided on the right edge of the pocket frame B so as to protrude in opposite directions. There is.

The door panel C is integrally made by resin molding, and has two tongue pieces 6a and 6b protruding from the lower side of the back surface at a certain distance apart, and the tongue piece 6a has a round hole 6a and the tongue piece 6b has a A key-shaped hole 6b' is formed respectively. Each hole 6 of this tongue piece 6a, 6b
A round bar-shaped protruding shaft 7a and a key-shaped protruding shaft 7b, which protrude in the same direction along the lower edge of the opening 3 of the panel stay D, are fitted into a' and 6b', respectively. Also on the back surface of the door panel C are elastic hooks 8a and 8b that engage with the engagement protrusion 4 of the half pocket A and the engagement protrusion 5 of the pocket frame B, respectively, and elastic hooks 8a and 8b adjacent to each of the elastic hooks 8a and 8b. Elastic hooks 8a and 8b are provided on the protruding shaft 4 and the protrusion 5.
Sliding bosses 9a and 9b are provided, respectively, which slidably come into contact with the front surface of the pocket frame B when engaged with the pocket frame B, respectively. Reference numeral 10 denotes a window formed in the center of the door panel C. A transparent plate (not shown) is fitted into this window 10, and the amount of tape remaining in the cassette half can be confirmed from outside the door panel C through this window 10. It is now possible to do so.

As is clear from the figure, since the protruding shaft 4 with which the elastic hook 8a engages is located further back than the protrusion 5,
The elastic hook 8a has a larger protrusion amount than the elastic hook 8b, and has greater elasticity so that it can be easily deformed with a small force.

With the above-described configuration, in order to attach the door panel C to the half pocket A of the tape recorder main body from the state shown in FIG. The panel stay D is rotated to open and its upper side is projected outward from the opening 3 of the panel stay D. Then, as shown by the broken line in the figure, the hole 6 of the door panel C
The protruding shafts 7a and 7b are fitted into a' and 6b', respectively, and the door panel C is rotatably supported about the protruding shafts 7a and 7b. Thereafter, the door panel C is rotated toward the half pocket A as shown by the arrow in FIG.
The elastic hooks 8a and 8b are deformed so that a' and 8b' ride on the upper ends of the protruding shaft 4 and the protrusion 5, respectively, and finally the protruding shaft 4 and the protrusion 5 engage with the elastic hooks 8a and 8b, respectively. Become. When engaged in this manner, the sliding bosses 9a and 9b come into slidable contact with the front surface of the pocket frame B, as shown in FIG. 3 or 5.

Further, as shown in FIG. 3, when the key part 7b' of the key-shaped protruding shaft 7b is displaced from the key part of the key-shaped hole 6b' of the tongue piece 6b, the tongue piece 6b of the door panel C is moved from the key part of the protruding shaft 7b. 7b' and the panel stay D, and the movement of the door panel C in the left and right direction is restricted.

By the way, the elastic hooks 8a, 8b have arc-shaped window holes 8a'',
8b'', and the protruding shaft 4 and the protrusion 5 are adapted to engage with the arc-shaped window holes 8a'' and 8b'', respectively, so that the half pocket A and the door panel C are pivoted as pivot points. Rotation of both is allowed even if the positions are different.Therefore, the fourth
When the door panel C is closed as shown in FIGS.
b, the sliding bosses 9a and 9b come to slide against the front surface of the pocket frame B.

When removing the door panel C from the half pocket A, the easily deformable elastic hook 8a is pushed outward to disengage from the engagement protrusion 4, and then the engagement protrusion 5 and the elastic hook 8b are disengaged. What is necessary is to remove the engagement.

As mentioned above, the present invention rotatably supports the half pocket on the tape recorder body, and
By rotatably supporting the door panel to the housing so as to open and close the opening, the half pocket and the door panel can be independently supported to the tape recorder body and the housing, and the half pocket and the door panel can be connected to the arc-shaped window hole. and a protrusion that engages with the window hole are relatively slidably connected so that when one rotates, the other rotates, so even if the mounting position of the tape recorder body is shifted, , the door panel does not shift relative to the housing, and is relatively slidable due to the connection between the arc-shaped window hole and the protrusion that engages with the window hole, so that the door panel and half Misalignment between the pocket and each rotation is now allowed, without impairing its function as a door mechanism.
Furthermore, a door mechanism can be obtained in which the door panel can be attached to the half pocket in a good manner without troublesome work such as position correction.

[Brief explanation of the drawing]

The drawings show an embodiment of the cassette mounting door mechanism according to the present invention, with FIG. 1 being a partially exploded perspective view showing a part cut away, FIG. 2 being a side sectional view showing a part of the assembly process, and FIG. 4 and 5 are right and left sectional views of a portion of the door mechanism in the closed state, and FIG. 6 is a front view of the door mechanism. be. A... Half pocket, C... Door panel, D
...Panel stay, 4...Engagement protrusion shaft, 5...Engagement protrusion, 8a, 8b...Elastic hook.

Claims (1)

[Scope of Claim for Utility Model Registration] A cassette mounting device comprising a half pocket of a tape recorder body mounted in a housing, and a door panel that opens and closes an opening formed in the housing for loading and unloading the cassette mounted in the half pocket. In the door mechanism, the half pocket is rotatably supported on the tape recorder main body, the door panel is rotatably supported on the housing to open and close the opening, and the half pocket and the A cassette characterized in that a door panel is relatively slidably connected by an arc-shaped window hole and a projection that engages with the window hole so that when one of the door panels rotates, the other rotates. Door mechanism for installation.