JPH0731390Y2 - Cassette loading device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a shape of a cassette holder which is a tape cassette accommodating portion in a cassette loading device.

[Prior Art] FIG. 5 shows a conventional example of a cassette mounting device of this type. FIG. 7 shows a schematic view of a VTR with a built-in camera as an example of using the cassette mounting device.

Reference numeral 1 is a cassette holder for accommodating and holding the tape cassette 8 shown in FIG. 8, and the cassette holder 1 performs an elevating operation by interlocking with the left and right links 2, 3, 2 ', 3', 8 is held and conveyed from the insertion position to a mounting position (not shown), or operates in the opposite direction.

Reference numeral 7 shown in FIG. 7 is a cassette lid attached to the cassette holder 1. FIG. 6 (a),
FIG. 1B shows a sectional view of a conventional cassette holder and the cassette lid 7 attached to the cassette holder. In the figure, the shape of the upper corner (C portion in the figure) of the conventional cassette holder 1 is a simple U-shape.

A device related to this type of device is disclosed in, for example, JP-A-60-173.
754 and the like.

[Problems to be solved by the invention] In this type of cassette mounting apparatus, the cassette lid attached to the cassette holder is a part of the main body case, and the shape of the cassette lid is the size and design of the main body case. Is one of the factors that determine

In order to make the shape of the conventional cassette holder described above smaller, as shown in FIG. 6 (a), it is necessary to make both corners (R portions) of the cassette lid 7 substantially rectangular. , The overall design is angular. Further, as shown in FIG. 6B, when the design of the smooth curved surface shape is made, the width direction W ′ increases, which becomes a factor of increasing the overall size.

The above-mentioned prior art does not take into consideration the miniaturization and the freedom of the shape of the camera-integrated VTR, and there is a problem that the size and shape of the cassette lid are limited.

An object of the present invention is to make the external appearance of a camera-integrated VTR and the like smaller, and to further increase the degree of freedom in design.

[Means for Solving the Problems] In order to achieve the above object, the upper corner of the cassette holder has a polygonal shape or a curved surface shape.

[Operation] Since the shape of the cassette holder of the present invention is the above-mentioned shape, the shape of both ends of the cassette lid attached to the cassette holder has a wide degree of freedom, and can be a smooth curved surface shape and a small cassette lid. Therefore, the overall size can be reduced and the shape can be liberalized.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view of a cassette loading device adopting an embodiment of the present invention. 2 (a) and 2 (b) are cross-sectional views of a cassette holder and a cassette lid attached to the cassette holder according to an embodiment of the present invention. The dimension L shown in FIG. 2 is determined by the width dimension 1 of the tape cassette 8 shown in FIG.
This also determines the minimum dimensions. Further, the illustrated dimension H is also determined by the height dimension h of the tape cassette 8 and the overstroke (gap between the tape cassette upper surface A and the cassette holder upper and lower end surface B) ΔH required when the tape cassette is mounted. The outer dimensions of the cassette holder 1, roughly H × L, are the outer dimensions h × l of the tape cassette 8.
Is almost decided by.

In a cassette holder having a limited minimum size, the upper corner shape (C portion in FIG. 2) of the cassette holder is polygonal as shown in FIG. 2A or curved as shown in FIG. As a result, the cut space can be effectively used, and the degree of freedom in the shape of the cassette lid is increased.

For example, as shown in FIGS. 2A and 2B, the shape of the cassette lid 7 attached to the cassette holder 1 is
In the C portion of the figure, the shape of the R portion of the cassette lid 7 can be configured with a smooth curved surface shape in accordance with the shape of the cut C portion.

FIG. 3 shows the details of the corner portions of the cassette holder 1 and the cassette lid 7 in order to specifically show the difference between the shape of the cassette holder according to the present invention and the shape of the conventional cassette holder. In the figure, the cassette holder and the cassette lid of the present invention are shown by solid lines, and the conventional cassette holder and cassette lid are shown by broken lines. 2 and 3, the radius of curvature of the central portion r and the radius of curvature of both end portions R of the cassette lid 7 are determined to be certain dimensions, and when the cassette lid 1 is attached to the cassette holder 1 under the same conditions as described above, In the case of the cassette holder shape of the present invention, the widthwise dimension W of the cassette lid 7 and the thicknesswise dimension D of the cassette holder 1 from the reference plane E are the same as those of the conventional cassette holder shape (FIG. 6 (b)). The widthwise dimension W'of the cassette lid 7 and the thicknesswise dimension D'from the reference plane E of the cassette holder 1.
As compared with the above, since the cassette C portion can be effectively used, as shown in FIG. 3, it can be suppressed by ΔW in the width direction and ΔD in the thickness direction.

Next, as shown in the alternate long and short dash line in FIG. 4, the cassette holder upper end surface B is lowered and the corner portion is simply a corner as a means for obtaining the same effect as or better than the present invention in the shape of the cassette lid 7. It is also conceivable to adopt a conventional shape with a bent shape. In the figure, the overstroke in the case of the conventional cassette holder (broken line) is Δ
H ₁ , the overstroke in the case of the present invention is ΔH ₂ , and the overstroke when the upper end face of the cassette holder is lowered in the conventional shape (dashed line) is ΔH ₃ . Normally, in this type of cassette mounting apparatus, as shown in FIG. 1, in order to increase the strength of the cassette holder 1, a reinforcing plate 10 is attached to the upper surface of the cassette holder 1.

Further, the reinforcing plate 10 has a bending structure to increase the strength, and the bending amount F of the reinforcing plate shown in FIG. 4 becomes a factor to reduce the amount of overstroke. The lack of the overstroke significantly reduces the feeling of operation when the tape cassette 8 is mounted.

In Figure 4, where apparently for [Delta] H _1, [Delta] H ₂
Appears to be decreased, but considering the bending amount F of the reinforcing plate 10 described above, the actual overstroke amount in the case of the conventional shape (broken line) is ΔH ₁ ′, which is the case of the present invention. Almost no difference from the stroke amount ΔH ₂ . However, when the shape shown by the alternate long and short dash line in the figure is used, when the same reinforcing plate 10 is attached, the actual overstroke amount is ΔH ₃ ′, and there is almost no overstroke. The feeling of operation when the cassette 8 is attached is significantly reduced.

As described above, in the cassette holder shape of the present invention,
It is possible to realize a cassette lid having a small and smooth curved surface shape without changing the overstroke amount, that is, without impairing the operation feeling when mounting the tape cassette.

[Advantage of Invention] According to the present invention, the cassette lid shape attached to the cassette holder can be made into a smooth curved surface shape and small in size without impairing the operation feeling when the tape cassette is attached. This has the effect of further downsizing the overall size of VTRs and the freedom of shape.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a cassette mounting apparatus according to an embodiment of the present invention, and FIGS. 2A and 2B show an embodiment of the present invention, showing a cassette holder and a cassette lid. A sectional view, FIG. 3 is a detailed sectional view of a corner portion of the cassette holder and the cassette lid, and FIG. 4 is a sectional view of a corner portion of the cassette holder and the cassette lid, showing a relationship of overstroke between the cassette holder and the tape cassette, FIG. 5 is a perspective view of a conventional cassette mounting device, FIGS. 6 (a) and 6 (b) are conventional examples, sectional views of a cassette holder and a cassette lid, and FIG. 7 utilize this type of cassette mounting device. FIG. 8 is a perspective view of a camera-integrated VTR as an example of a product, and FIG. 8 is a perspective view of a tape cassette. Explanation of symbols 1 …… Cassette holder, 7 …… Cassette lid, 8 ……
Tape cassette, 9 ... VTR body case with integrated camera, 1
0 ... Reinforcing plate.

Claims (1)

[Scope of utility model registration request] 1. A cassette mounting device for holding and transporting a cassette holder for accommodating a tape cassette to a cassette mounting position, wherein the upper corners of the cassette holder are polygonal and the upper part of the cassette holder is covered. When the cassette lid is provided so as to cover the upper portion of the cassette holder, the curved shape of the end portion of the cassette lid has an upper corner of the cassette holder. At least two points are in contact with a part of the polygonal shape of the cassette mounting device.