JPH0441481Y2 - - Google Patents

Description

[Detailed description of the invention] [Summary] This is a pack loading mechanism that pulls in the cassette pack horizontally and then lowers it vertically. Even if the vertical lifting distance of the pack retracting holder is short, the horizontality of the holder can be maintained. to prevent the pack from tilting with respect to the head or the holder from getting stuck in the guide groove.

[Industrial application field]

The present invention relates to a pack loading device for vertically lowering a cassette pack that has been drawn in horizontally.

[Conventional technology]

In a pack loading mechanism such as a DAT (digital audio tape) in which a pack retracting holder driven by a motor moves horizontally and vertically along an L-shaped guide groove, the vertical movement of the holder is horizontal. If this is not done, it may cause the pack to tilt or stick, causing malfunction. For this reason, conventionally, as shown in Fig. 3a and b, the side plate 10 is
Shape guide grooves 11 to 13 are provided, and pins 21 to 23 of the pack retraction holder 20 are inserted therein.
The three-point support structure stabilizes vertical movement. Since the amount of movement of the holder 20 in the horizontal direction can be larger than that in the vertical direction, relatively stable operation can be expected in the horizontal direction.

[Problem that the invention attempts to solve]

By the way, the cases shown in FIGS. 3a and 3b have a holder 20.
This is effective when the width W ₁ of the holder 20 is wide and the side plate ₁₀ can be made to stand upright from the bottom surface 31 of the chassis 30. However, as shown in FIG.
It is difficult to adopt this method when the 0 is made to stand upright from the upper surface 32 of the chassis 30. This is because if the side plate 10 of b cannot be used below the chassis top surface 32, the lower guide groove 13 cannot be set with the same dimensions, so the two guide grooves 11 and 12 cannot be used.
Therefore, the holder 20 must be guided in the horizontal direction.

However, in such a two-point supported guide, there is a possibility that the pins 21 and 22 of the holder 20 may become jammed in the guide grooves 11 and 12 and become inoperable. Also, the inclination of the pack is greater than that of a three-point support structure.

The present invention attempts to improve the above-mentioned problems by providing a mechanism for guiding movement in the vertical direction in addition to the side plates.

[Means for solving problems]

FIG. 1 is a diagram showing the basic structure of the present invention, in which 40 is a rack, 41 is a boss provided therein, 50 is a pinion, 60 is a guide member, 61 is a groove into which the boss 41 is fitted, and 62 to 64 are guide members 60. pin, 7
Reference numerals 1 and 72 designate longitudinal guide grooves of a support plate (70 in FIG. 2) that slidably supports the guide member 60.

[Effect]

The rack 40 has a toothed portion 4 that is continuous on the left side and the bottom side.
2, when the pinion 50 rotates in the clockwise direction C, the rack 40 first moves to the right H and then descends downward V. Side plate 10 (second
L-shaped guide grooves 11, 12 (see figure) guide the rack 40 so that it can move in this manner.

When the rack 40 completes its movement in the right direction H, the boss 41 moves into the groove 6 of the guide member 60 as shown in FIG. 1b.
It is inserted into 1. Therefore, when the rack 40 descends in the V direction from this state, the guide member 60 also descends integrally in the V direction. This guide member 60 has a sufficiently longitudinal guide groove 7 in a support plate 70 (FIG. 2).
Since it is supported at three points by points 1 and 72, straight movement in the V direction is guaranteed. Therefore, Luck 40
The vertical movement of the pins 21 and 22 and the guide groove 1
Since it is a three-point support that includes the two-point support by 1 and 12 and the support by the boss 41 and the guide member 60,
The pack retracting holder connected to the rack can also be moved vertically while maintaining horizontality.

〔Example〕

FIG. 2 is a block diagram showing an embodiment of the present invention. Since the side plate 10 of this example is erected from the upper surface 32 of the chassis 30, its vertical dimension is not long. However, if there are two guide grooves 11 and 12, a sufficient length in the vertical direction can be obtained. In addition,
Since the support plate 70 can be set to a length that reaches the chassis lower surface 31 by bending a part of the top plate 80, the guide grooves 71 and 72 can be set to a sufficient length without being subject to the dimensional restrictions of the side plates 10. can do. The guide member 60 is normally positioned at the top by the spring 90, and the boss 41 moves into the groove 6 by the horizontal movement of the rack 40.
1 so that it can be inserted securely. Also,
By making the boss 41 horizontally long, the horizontality of the rack 40 can be maintained more reliably.

The overall operation is as explained in FIG.
Note that rotation is transmitted from the motor to the pinion 50 via a reduction gear train. Further, a cassette pack is manually inserted into the pack retracting holder 20. When the holder 20 moves slightly in the H direction when the pack is inserted, the start switch is turned on and the motor rotates, and when the rack 40 is sufficiently lowered, the end switch is turned on and the motor is stopped. At the time of discharge, the motor is reversed to perform the opposite operation to the above.

[Effect of idea]

As described above, according to the present invention, even if the deck is thin and cannot form the three guide grooves that support the pack retracting holder with just the side plate, it is possible to vertically move by providing a guide member that moves only in the vertical direction separately from the side plate. Movement can be supported at three points, and tilting of the pack and jamming of the holder can be prevented.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the principle of the present invention, FIG. 2 is a diagram showing the construction of an embodiment of the invention, and FIG. 3 is a structural diagram of a conventional pack loading mechanism.

Claims (1)

[Scope of utility model registration request] Two L-shaped guide grooves 11 provided on the side plate 10,
In a pack loading device, a rack 40 movable horizontally and vertically along a rack 12 is coupled to a pack drawer holder 20.
0 is provided with a boss 41, and a vertical support plate 70 extending from the top plate to the bottom surface of the chassis is provided on the outside of the side plate 10, and furthermore, when the rack moves in the vertical direction, it engages with the boss and is integrally vertically mounted. A pack loading device characterized by having a structure in which a guide member 60 that moves in the direction is slidably supported by the support plate.