JP2578625B2 - Cassette mounting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a cassette for moving a cassette holder for holding a cassette for accommodating a tape-shaped magnetic recording medium from a cassette insertion position to a position where loading is completed, and back. The present invention relates to a mounting device.

[Prior Art] FIG. 6 is a perspective view showing a configuration of a cassette mounting portion of a cassette mounting device conventionally used in a magnetic recording / reproducing apparatus (hereinafter referred to as a VTR) or the like.

In FIG. 6, reference numeral 1 denotes an inner holder into which a cassette is removably mounted, and 2 denotes an inner holder which is moved upward and downward when the cassette is attached and detached.
It is an outer holder that rotates downward and holds the inner holder 1 in a locked state. Reference numeral 3 denotes a leaf spring provided on the ceiling surface of the outer holder 2 and pressing the upper surface of the inner holder 1. Reference numeral 4 denotes a rotation fulcrum of the inner holder 1 and the outer holder 2.

In the above configuration, when mounting a cassette (not shown), the inner holder 1 is pulled out from the outer holder 2 and the cassette is inserted into the drawn inner holder 1. The inner holder 1 is pushed into the outer holder 2 together with the insertion, and the integrated inner holder 1 and outer holder 2 are depressed to be set at a fixed position, so that the tape can be pulled out from the cassette, that is, the tape can be loaded. You. The inner holder 1 is stably held by the pressing force of the leaf spring 3.

[Problems to be Solved by the Invention] In the above-described conventional cassette mounting apparatus, since the leaf spring 3 is fixedly installed on the outer holder 2, the amount of pulling out of the inner holder 1 with respect to the outer holder 2 increases. As the pressing point of the leaf spring 3 with respect to the inner holder 1 moves to the rear of the inner holder 1, the force for pressing the cassette is weakened, and a rotational force is generated for the inner holder, so that there is a problem that the floating tends to occur. I have.

The present invention has been made in order to solve such a problem, and an object of the present invention is to provide a cassette mounting apparatus in which the holding pressure on the inner holder 1 is constant regardless of the relative position of the inner holder 1 and the outer holder 2. Aim.

Means for Solving the Problems In order to achieve the above object, the present invention relates to an outer holder having one end hinged to a chassis body so as to be openable and closable, and an inner holder which is inserted into the outer holder so as to be capable of sliding. An inner holder on which a cassette is mounted, wherein the inner holder on which the cassette is mounted is slid from a cassette insertion position to a loading completed position to perform cassette loading, and the inner holder is pressed down. An elastic member having one end mounted on the upper surface of the inner holder is provided, and the elastic member is configured to press the inner surface of the outer holder and slide in conjunction with the inner holder.

[Operation] With the above-described configuration, the inner holder is pressed against the outer holder in a well-balanced manner, and the elastic force applied to the inner holder can be kept constant, so that the inner holder is pulled out from the inner holder and the outer holder. Sufficient holding force can be obtained even in the state in which it is held.

[Embodiment] FIG. 1 is a side view showing a setup of an embodiment of the present invention, and FIG. 2 is a side view showing a state before a slide operation and showing a cassette insertion position.
FIG. 3 shows a state at the time of completion of the slide operation,
It is a side view which shows a loading completion position. Also, FIG.
5 is a plan view corresponding to FIG. 3, and FIG. 5 is a plan view corresponding to FIG.

1 to 5, reference numeral 5 denotes a cassette, and 6 denotes an inner holder 1.
And is fitted in an opening long groove 7 provided on the side surface of the outer holder 2. Reference numeral 8 denotes a pin provided on the side surface of the inner holder 1, which fits into a concave portion formed on the side surface of the outer holder 2 at the time of set-up and before the sliding operation.

Reference numeral 9 denotes a rotary head having a plurality of heads mounted on a peripheral surface portion; 10, a main chassis for rotatably fixing the rotary head 9; 11, a support member projecting from the main chassis 10 and supporting the rotary fulcrum 4. It is. Reference numeral 12 denotes a cassette holder for holding the cassette 5 inserted into the inner holder 1, 13 denotes a spring for urging the cassette holder 12 toward the cassette 5, 14
Is a leaf spring mounted on the upper surface of the inner holder 1 to press down the inner holder 1, and 15 is a pin protruding from the lower side surface of the inner holder 1.

Reference numeral 16 denotes a slide chassis slidably disposed on the main chassis 10, reference numeral 17 denotes a guide plate protruding from the slide chassis 16, and reference numeral 18 denotes an arc-shaped guide groove provided in the longitudinal direction of the guide plate 17. Reference numeral 19 denotes a lock lever that locks the outer holder 2 by engaging a lock portion provided at a lower portion of the outer holder 2, and 20 denotes a lock lever for rotating the lock lever 19. Reference numeral 21 denotes a post for pulling out a tape from the cassette 5 set at a fixed position to perform loading, and reference numeral 22 denotes a cassette positioning pin provided on the slide chassis 16.

In FIGS. 4 and 5, reference numeral 23 denotes a pinch roller, reference numeral 24 denotes a capstan for conveying the tape at a constant speed by pressing the pinch roller 23 through the tape, and reference numeral 25 denotes a rotation. This is a capstan motor in which the position of the shaft is a capstan 24.

The operation of the above configuration will be described with reference to FIGS.

When mounting the cassette 5, the lock lever 19 is released from the lock claw of the outer holder 2, the holder portion is lifted, and the cassette 5 is inserted into the inner holder 1, so that the state shown in FIG. When the insertion of the cassette 5 is completed, the inner holder 1
Then, the outer holder 2 is pushed down to the slide chassis 16 side.
This state is shown in FIG. 2, in which the inner holder 1 includes the pins 6, 8 and 15
The inner holder 1 does not move even though it is configured to slide in the outer holder 2 without a fulcrum. Further, the cassette 5 is pressed against the cassette positioning pins 22 on the slide chassis 16 by the cassette presser 12 disposed in the inner holder 1 to position the cassette. Further, since the outer holder 2 is locked by the lock lever 19, no setup is required. Further, in this state, the posts 21 and the pinch rollers 23 are housed in the concave portions of the cassette 5, and the operation of pulling out the tape is not performed.

It is preferable that the pressing force of the cassette presser 12 in the inner holder 1 be smaller than the pressing force of the leaf spring 14.

Next, in the state shown in FIGS. 2 and 4, the slide chassis 16 is moved a predetermined distance in the direction of the rotary head 9 by a drive mechanism (not shown) such as a motor and each post 21 and the pinch roller 23 are rotated by the rotary head. By moving the tape to the 9 side while pulling it out of the cassette 5,
As shown in FIGS. 3 and 4, a tape path is formed, and the rotary head 9 is set in a state of being cut into the recess of the cassette.

While the slide chassis 16 is slid from the state of FIG. 2 to the state of FIG. 3, the free end of the leaf spring 14 moves integrally with the inner holder 1 while sliding on the ceiling surface of the outer holder 2. Therefore, the urging force of the leaf spring 14 is always at the same level without changing the point of action on the inner holder.
1, 2, and 3, there is no change in the pressing pressure and pressing position applied to the inner holder 1. For this reason, the inner holder 1 is stably held in the outer holder 2, and there is no state in which rattling or rotational force due to a change in the pressing position is generated.

[Effects of the Invention] As described above, in the present invention, the elastic member for stably holding the inner holder on the outer holder is mounted on the inner holder, so that the inner holder is always fixed regardless of the sliding position. A pressing force can be applied to the inner holder. As a result, the slide amount can be increased, and
The whole device can be reduced in size.

[Brief description of the drawings]

FIG. 1 is a side view showing a power setup according to one embodiment of the present invention, FIG. 2 is a side view showing a state before the slide operation, FIG. 3 is a side view showing a state when the slide operation is completed, 4 is a plan view corresponding to FIG. 2, FIG. 5 is a plan view corresponding to FIG. 3, and FIG. 6 shows a configuration of a cassette mounting portion of a cassette mounting apparatus used in a conventional VTR or the like. It is a perspective view. In the figure. 1: Inner holder 2: Outer holder 5: Cassette 9: Rotating head 10: Main chassis 14: Leaf spring 16: Slide chassis

Continued on the front page (72) Inventor Hidetoshi Matsuoka 770 Shimonoge, Takatsu-ku, Kawasaki City, Kanagawa Prefecture Inside the Tamagawa Office of Canon Inc. ) References JP-A-1-143060 (JP, A)

Claims (1)

(57) [Claims] An outer holder having one end hinged to the chassis body so as to be openable and closable, and an inner holder slidably inserted into the outer holder and mounted with a cassette, wherein the cassette is mounted. In a cassette mounting apparatus for performing cassette loading by sliding an inner holder from a cassette insertion position to a loading completion position, an elastic member having one end mounted on an upper surface of the inner holder for pressing the inner holder is provided. A cassette mounting device, wherein a member presses an inner surface of the outer holder and slides in conjunction with the inner holder.