JPH04114351A - Cassette loading device - Google Patents

Abstract

PURPOSE:To drive a cassette and a tape with one motor by moving a cassette holder to a recording/reproducing position by a first rack part of a tray to complete loading (LD) of the cassette and next driving a tape loading means by a second rack part to load the tape. CONSTITUTION:A cam gear 12 is rotated by the operation of a motor 23, and a first rack part 8 moves a cassette holder 4 to the recording/reproducing position by a pinion to complete loading of the cassette, and a tray 6 is stopped because the pinion is meshed with a second rack part 9 following the rack 8. The rack 9 is continuous to the rack 8 and is extended on a locus which has a shaft 17 of a oscillating plate 16 as the center and has a uniform radius, and the gear 12 is continuously turned; and when the pinion is meshed with the rack 9, the plate 16 is turned, and a tape loading means 20 is driven by a gear part 19 to load the tape. The motor 23 and the gear 12 are reversed and the plate 16 is driven to perform the unloading operation, and the pinion is meshed with the rack 8 thereafter to perform the eject operation, and the device is returned to the initial state. Thus, the constitution is simplified and the reliability is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a cassette and tape loading device for a magnetic recording device such as a VTR.

2. Description of the Related Art Conventionally, there is a front loading system as one method of installing a cassette in a VTR.

In this system, the cassette input slot is provided on the front panel of the main body, so the operability is superior to the hop-up system in which the cassette holder protrudes from the top of the VTR main body.

Incidentally, the front loading method generally requires a dedicated motor for cassette loading, which is a cause of high product costs. As a countermeasure, Japanese Patent Application Laid-Open No. 59-52451.

As shown in Japanese Unexamined Patent Publication No. 59-54066, an apparatus has been proposed in which cassette loading and tape loading are driven by a common drive source.

Problems to be Solved by the Invention However, in all of the above inventions, the means for switching the drive source from the cassette loading drive to the tape loading drive is complicated.
There is no switching means in the publication, but the first one is switched from the common drive source.
The rotating body and the second rotating body perform cassette loading drive and tape loading drive, and have two systems of transmission means as a mechanism to decelerate the high-speed rotating drive source and perform each loading. , which is also more advanced but has room for improvement.

In view of the above problems, the present invention provides a simpler device in which cassette loading and tape loading are driven by a common drive source.

Means for Solving the Problems In order to solve the above problems, the cassette loading device of the present invention includes a cassette holder for moving the cassette between a first position for receiving and storing the cassette and a second position for recording the cassette; A tray that supports a holder and has a horizontally movable first rack part and a second rack part that is continuous with the first rack part, and a drive gear that drives the tray.
A motor that drives this drive gear, a swingable tape loading drive lever on which these drive gears and the motor are mounted and a gear formed at one end, and a swinging action of the tape loading drive lever to load the tape from the cassette. a tape loading member that moves the cassette holder from the first position to the second position while the drive gear engages with the first rack part of the tray and is driven; The tape loading member is driven while being engaged with and driven by the rack portion of No. 2 to pull out the tape.

According to the above-described structure, the first rack section of the tray is first driven by the rotation of the drive gear, and the cassette holder is moved from the first position to the second position (D) for cassette loading. Then, the second rack section is driven and the tape loading drive lever swings to drive the tape rope pier section H to complete tape loading.

Embodiment A cassette loading device according to an embodiment of the present invention will be described below with reference to the drawings.

FIGS. 1 to 7 are explanatory diagrams showing an outline of the configuration of a cassette loading device in an embodiment of the present invention. Figure 1 is a plan view, Figure 2 is a front view, Figure 3 is a side view, Figure 4 is
FIG. 5 is an explanatory diagram of the cassette loading operation, and FIGS. 6 and 7 are explanatory diagrams of the tape loading operation.

1 to 7, 1 is a substrate, and the substrate 1
Support plates 2 are provided on both sides of the tray member 6 to support the tray member 6. 3 is a tray member guide groove formed on the support plate 2; 4 is a cassette holder member with two protrusions 5 on each side;
is formed and engaged with a guide groove 10 provided in the tray member 6. Further, the projection 5 is pulled by the spring 24 and is positioned at the right end of the guide groove 10. Reference numeral 7 denotes a protrusion formed on the side surface of the tray member 6, which engages with and slides in the tray member guide groove 3. Reference numeral 8 denotes a first rack portion formed on the side surface of the tray member 6, and numeral 9 represents a second rack portion formed on the side surface of the tray member 6, both of which engage with the binion 13. 11 is a stopper that stops the cassette holder member 4; 12 is a cam gear that drives the tray member 6; and 13 is a pinion formed on the cam gear 12 that engages with the first rack portion 8 and the second rank portion 9. The tool 5 rotates the swinging lever 16 using a cam groove formed in the cam gear 12. F is the center axis of rotation of the swing plate 16, and 19 is a gear formed at the left end of the swing plate 6 to drive the tape loading means section 20. The tape is wound around the cylinder 21 by this tape loading means section 2o. 21 is a cylinder, 22 is a cassette, 23 is a motor that drives the cam gear 12, and 24 is a spring that urges the protrusion 5 of the cassette holder member 4 upward in the guide groove 10.

The operation of the cassette loading device configured as described above will be described below.

First, the cassette 22 is inserted into the cassette holder member 4. Thereafter, the cam gear 12 is rotated counterclockwise by the operation of the motor 23, and the first rack portion 8 begins to move inward (in the direction of the arrow in FIG. 1) by the pinion 13. The tray member 6 then moves from the position shown in FIG. 3 to the position shown in FIGS. 4 and 5.

Similarly, the cassette holder 4 first moves from the position shown in FIG. 3 to the position shown in FIG. 4, and in this position, the cassette holder 4 abuts against the stopper 11. However, since the tray member 6 continues to move, the protrusion 5 of the cassette holder 4 will no longer fit into the guide groove 10.
The cassette is moved downward in accordance with the above, and reaches the position shown in FIG. 5, and the cassette installation is completed.

Then, the pinion 13 finishes engaging with the first rack part 8 and engages with the second rack part 9, so that the tray member 6 stops (FIG. 6). The second rack section 9 is the first rack section 8
It is configured to extend on a locus of the same radius around the rotation center axis 17 of the swing plate 16. Therefore,
As the cam gear 12 continues to rotate (in the direction of the arrow in FIG. 6), the pinion 13 engages with the second rack portion 9, and the rocking plate 16 begins to rotate (in the direction of the arrow in FIG. 7), causing the left end gear to rotate. At section 19, tape loading means section 20 is driven to take out the tape.

Note that the present invention employs a so-called M loading method. Further, the unloading operation is performed by rotating the motor 23 in the reverse direction, rotating the cam gear 12 clockwise, and driving the rocking plate 16 counterclockwise. After the tape has been stored, the pinion 13 engages with the first rack portion 8, and the tray member 6 begins to move outward, thereby performing an ejecting operation. Then it returns to the initial state.

As described above, according to this embodiment, the first rack part and the second rack part are formed in the tray member, and the cam gear and the motor are mounted on the rocking plate, and the pinion of the cam gear and the second rack part are formed on the tray member. 1
By engaging with the second rack part, cassette loading is performed, and then by engaging with the second rack part, the rocking plate rotates and drives the tape loading means part to perform tape loading. , cassette loading drive and tape loading drive can be performed continuously by the same motor with a simple configuration.

Effects of the Invention As described above, the present invention allows cassette loading and tape loading to be performed using the same motor, and furthermore, the first rack portion is driven by the pinion of the driving cam gear to linearly move the tray member. As a result, the cassette is lowered, raised, and moved horizontally, and then it swings itself in the second rack section to load the tape, so the configuration is simple, the number of parts is small, and highly reliable effects can be obtained. I can do it.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a cassette loading device according to an embodiment of the present invention, FIG. 2 is a front view of the device, and FIGS. 3, 4, and 5 are side views showing the operating state of the device. FIGS. 6 and 7 are explanatory diagrams of the tape loading operation.

Claims (1)

[Scope of Claims] A cassette holder that moves the cassette between a first position for receiving and storing the cassette and a second position for recording the cassette, and a first rack that supports the cassette holder and is movable in the horizontal direction. a tray having a section and a second rack section continuous thereto; a drive gear for driving the tray; a motor for driving the drive gear; and a tape loading member that pulls out the tape from the cassette by the swinging action of the tape loading drive lever, and the drive gear is connected to the first rack portion of the tray. moving the cassette holder from a first position to a second position while being engaged and driven; and driving a tape loading member while the drive gear is being engaged and driven with a second rack portion of the tray; A cassette loading device that pulls out the tape.