JPH0437324Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a support mechanism for a pack guide for raising and lowering a cassette between an insertion position and a playback position in a tape player.

[Technical background of the invention and its problems] Pack guide 1 for raising and lowering the cassette
2, is supported at the tip of a guide arm 3 rotatably attached to the chassis of the tape player via a support shaft 2, and moves up and down parallel to the chassis as the guide arm 3 rotates. .

Conventionally, the pack guide 1 and the guide arm 3 were attached by forming an engagement hole 4 at the tip of the guide arm 3, and forming an upward bend in the rear end of the pack guide 1 within the engagement hole 4. Inserting the protrusion 5 and inserting the insertion piece 6 at the tip of the guide arm 3 into the engagement hole 7 provided in the vertical part 1a of the step on the pack guide 1 side.
It was inserted inside.

However, in the conventional support mechanism, the guide arm 3
In order to prevent the guide arm 3 and the pack guide 1 from interfering with each other when the pack guide 1 rotates downward, the engagement hole 4 is
The width _L1 of the protrusion 5 was set to be considerably larger than the thickness W of the protrusion 5.

Therefore, when the pack guide 1 is raised as shown in FIG. 2A, rattling occurs between the pack guide 1 and the guide arm 3, which has the disadvantage of causing abnormal noise during vibration.

[Purpose of the invention] The purpose of the invention is to ensure that the pack guide and guide arm operate smoothly when the cassette is raised and lowered, and there is no fear of engagement between the two, and that the pack guide does not wobble when the cassette is raised. An object of the present invention is to provide a support mechanism for a pack guide.

[Summary of the invention] The pack guide support mechanism of the present invention has an engagement hole provided at the tip of the guide arm whose cross-sectional shape has a width in the front and back direction equal to the thickness of the protrusion of the pack guide. Moreover, an inclined notch corresponding to the angle of inclination of the guide arm when the pack guide is lowered is formed in the thicker corner of the engagement hole.

[Embodiment of the invention] An embodiment of the invention will be described below with reference to FIGS. 1A and 1B. Note that the same members as in the conventional type shown in FIGS. 2A and 2B are designated by the same reference numerals, and explanations thereof will be omitted.

In this embodiment, the width L ₂ of the engagement hole 4 provided at the tip of the guide arm 3 corresponds to the thickness W of the protrusion 5 of the pack guide 1 (a dimension that allows the protrusion 5 to be inserted without wobbling). It is becoming. Among the corners on the thick side of this engagement hole 4, an inclined shape corresponding to the inclination angle of the guide arm 3 when the pack guide 1 is lowered is formed on the support shaft 2 side on the upper surface and on the pack guide 1 side on the lower surface. Notches 4a and 4b are formed.

According to this embodiment having such a configuration, when the pack guide 1 is raised, the protrusion 5 is held between the front and rear edges of the engagement hole 4 corresponding to the wall thickness W, as shown in FIG. 1A. No rattling occurs. On the other hand, when the pack guide is lowered, the guide arm 3
As the protrusion 5 is lowered, the protrusion 5 is inclined with respect to the surface of the guide arm 3. However, since the notches 4a and 4b are provided at the corners of the engagement hole 4, the protrusion 5 is tilted with respect to the surface of the guide arm 3.
The edge of the engagement hole 4 does not come into contact with the edge of the engagement hole 4, and the pack guide 1 can descend smoothly.

[Effects of the Invention] As described above, the present invention has the effect of providing a support mechanism for a pack guide that does not cause rattling of the pack guide and can be smoothly moved up and down.

[Brief explanation of the drawing]

Figures 1A and B are sectional views showing an embodiment of the pack guide support mechanism of the present invention, and Figures 2A and B are sectional views showing the conventional pack guide support mechanism. When the pack guide is raised, B indicates when it is lowered. 1... Pack guide, 2... Support shaft, 3... Guide arm, 4... Engagement hole, 4a, 4b... Notch, 5... Protrusion, 6... Insertion piece, 7... Engagement Hole.

Claims (1)

[Scope of Claim for Utility Model Registration] The cross-sectional shape of the engagement hole provided at the tip of the guide arm shall have a width in the front and back direction equal to the thickness of the protrusion of the pack guide, and Slanted notches corresponding to the inclination angle of the guide arm when the pack guide is lowered are formed at the corners of the upper and lower sides, respectively, and the surface of the guide arm is aligned with this notch when the guide arm is lowered. A support mechanism for a pack guide characterized by being configured so as to follow the surface.