JPH01162268A - Cassette mounting device - Google Patents

Abstract

PURPOSE:To always apply a constant pressing force on an inner holder perspective of the sliding position of the inner holder by loading an elastic member to hold the inner holder on an outer holder stably on the inner holder. CONSTITUTION:The title device is provided with the outer holder 2 whose one end is screwed in a chassis main body in such a way that it can be opened and closed freely and the inner holder 1 inserted freely in the outer holder 2 and on which a cassette 5 is loaded and it is a cassette mounting device to perform cassette loading by sliding the inner holder 1 on which the cassette is mounted from a mounting position to a mounting completion position, and the elastic member 14 to press the inner plane of the holder 2 is provided so as to be slided by interlocking with the inner holder 1. Therefore, the inner holder is pressed on the outer holder in a balanced state, and since an elastic force being applied on the inner holder can be kept constant, it is possible to obtain a sufficient holding power even under a state where the inner holder is drawn out from the outer holder, consequently, a quantity of slide can be increased, and the miniaturization of the whole device can be realized.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a cassette that moves a cassette holder that holds a cassette containing a tape-shaped magnetic recording medium forward and backward from a cassette insertion position to a fully loaded position. The present invention relates to a mounting device.

[Conventional Technique #I] FIG. 6 is a perspective view showing the structure of a cassette loading section of a cassette loading device conventionally used in magnetic recording/reproducing devices (hereinafter referred to as VTRs).

In FIG. 6, reference numeral 1 denotes an inner holder into which a cassette is detachably loaded, and 2 an outer holder which rotates the inner holder l up and down when attaching and detaching the cassette and holds the inner holder l in a locked state. Reference numeral 3 denotes a leaf spring that is provided on the ceiling surface of the outer holder 2 and presses down the upper surface of the outer holder 2. Also,
4 is a rotation fulcrum of the inner holder l and the outer holder 2.

In the above configuration, when installing a cassette (not shown), the inner holder l is pulled out from the outer holder 2, and the cassette is inserted into the pulled out inner holder 1. When inserted, the inner holder l is pushed into the outer holder 2, and by pushing down the integrated inner holder l and outer holder 2, the cassette is set in a fixed position and the tape can be pulled out from the cassette, that is, the tape can be loaded. Ru. The inner holster l is held stably by the pressing force of the leaf spring 3.

[Problems to be Solved by the Invention] In the conventional cassette mounting device as described above, since the leaf spring 3 is fixedly installed on the outer holder 2, the amount by which the inner holder l is pulled out from the outer holder 2 increases. As the pressing point of the leaf spring 3 relative to the inner holder l moves to the rear of the inner holder l, the force for pressing the cassette becomes weaker, and a rotational force is generated against the inner holder, causing the problem that lifting is likely to occur. There is.

The present invention has been made to solve these problems, and it is an object of the present invention to provide a cassette mounting device in which the holding pressure on the inner holder 1 is constant regardless of the relative positions of the inner holder 1 and the outer holder 2. purpose.

[Means for Solving the Problems] In order to achieve the above object, the present invention has a chassis body with one end that can be freely opened and closed! l! ! an outer holder attached to the cassette; and an inner holder that is slidably inserted into the outer holder and a cassette is attached to the cassette; In the cassette mounting device for loading, an elastic member that presses the inner surface of the outer holder is arranged to slide in conjunction with the inner surface of the outer holder.

[Function] With the above 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 maintained constant, so that the inner holder can be pulled out from the inner holder and the outer holder. It is possible to obtain a very sufficient holding force even in a closed state.

[Embodiment] Fig. 1 is a side view showing an embodiment of the present invention when the cassette is set up, Fig. 2 is a side view showing the state before the slide operation, and Fig. 3 is a side view showing the state before the slide operation is completed. FIG. 4 is a plan view corresponding to FIG. 2, and FIG. 5 is a plan view corresponding to FIG. 3.

In FIGS. 1 to 5, 5 is a cassette, and 6 is a pin attached to the side surface of the inner holder 1, which is fitted into an open long groove 7 provided on the side surface of the outer holder 2. 8 is the inner holder l
It is a pin provided on the side surface of the outer holder 2, and is inserted into the recess formed on the side surface of the outer holder 2 during setup and before sliding operation.

Reference numeral 9 denotes a rotating head having a plurality of heads attached to its peripheral surface, 10 a main chassis for rotatably fixing the rotating head 9, and 11 a support member protruding from the main chassis 10 to support the rotation fulcrum 4. It is. 12 is a cassette presser for holding down the cassette 5 inserted into the inner holder l;
3 is a spring that urges the cassette holder 12 in the direction of the cassette 5; 14 is a leaf spring attached to the top surface of the inner holder 1 to press down the inner holder 1; and 15 is a spring that urges the cassette holder 12 toward the cassette 5;
This is a pin that protrudes from the lower side of the.

16 is a slide chassis slidably disposed on the main chassis 10, 17 is a guide plate protruding from the slide chassis 16, and 18 is a circular arc-shaped guide provided in the longitudinal direction of the guide plate 17. The groove 19 locks the lock part provided at the bottom of the outer holder 2 and locks the outer holder 2.
A lock lever 120 is a lock lever for rotating the lock lever 19. Further, 21 is a post for pulling out and loading the tape from the cassette 5 set in a fixed position, and 22 is a cassette positioning pin provided on the slide chassis 16.

In addition, in FIGS. 4 and 5, 23 is a pinch roller, 24 is a capstan for conveying the tape at a constant speed by pressing the pinch roller 23 through the tape, and 25 is a rotating capstan. This is a capstan motor with a capstan 24 at the shaft position.

The operation of the above configuration will be explained with reference to FIGS. 1 to 5.

When mounting the cassette 5, the lock lever 19 is removed from the locking claw of the outer holder 2, the holder portion is lifted, and the cassette 5 is inserted into the inner holder l to bring it into the state shown in FIG. When the insertion of the cassette 5 is completed, the inner holder 1 and the outer holder 2 are pushed down toward the light chassis 16 side.

This state is shown in Fig. 2, and the inner holder l is pin 6.8.
and 15, and the inner holder l does not move even though it is configured to slide within the outer holder 2 without having a fulcrum. Also, cassette 5
is the cassette positioning pin 2 on the slide chassis 16
2 is pressed by a cassette presser 12 disposed inside the inner holder l, and the cassette is positioned. Further, since the outer holder 2 is locked by the lock lever 19, there is no need to set up the cassette. Furthermore, in this state, each post 21 and pinch roller 23 are housed in the four parts of the cassette 5, and the tape is not pulled out.

Note that 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 rotated and moved a predetermined distance in the direction of the rad 9 by a drive mechanism (not shown) such as a motor, and each post 21 and pinch roller 23 are rotated. By moving the tape toward the head 9 side while pulling it out of the cassette 5, a tape bus is formed as shown in FIGS. 3 and 4, and the rotary head 9 is set in the recessed part of the cassette. .

While the slide chassis 16 is being slid from the state shown in FIG. 2 to the state shown in FIG. 3, the free end of the leaf spring 14 slides on the ceiling surface of the outer holder 2 and moves together with the inner holder l. Therefore, the urging force by the leaf spring 14 is always applied to the inner holder l at the same level without changing its point of action on the inner holder, and the urging force is always applied to the inner holder l at the same level, regardless of the inner holder 1 shown in FIGS. 1, 2, and 3. Even in the position shown in FIG. 1, there is no change in the pressing pressure applied to the inner holder l and the pressing position. For this reason, the inner holder l
is stably held within the outer holder 2, and there is no state where it would rattle or generate rotational force due to changes in the pressing position.

[Effects of the Invention] As explained above, in this invention, an elastic member is attached to the inner holder to stably hold the inner holder and the outer holder. A pressing force can be applied to the inner holder. As a result, it becomes possible to increase the sliding amount and to downsize the entire device.

[Brief explanation of the drawing]

FIG. 1 is a side view showing an embodiment of the present invention when the cassette is set up, FIG. 2 is a side view showing the state before the slide operation, and FIG. 3 is a side view showing the state when the slide operation is completed. FIG. 4 is a plan view corresponding to FIG. 2, FIG. 5 is a plan view corresponding to FIG. 3, and FIG. 6 shows the configuration of a cassette loading section of a cassette loading device used in a conventional VTR, etc. FIG. In the figure. l: Inner holder 2: Outer holder 5: Cassette 9: Rotating head 10: Main chassis 14: Leaf spring 16: Slide chassis agent Patent attorney 1) Haru Kitatake Figure 2 Figure 3 Figure 1 )) \\゛\゛＼＼＼、Hug's - ωLl" 1 sun to 0

Claims (1)

[Claims] It comprises an outer holder whose one end is hinged to the chassis body so that it can be opened and closed, and an inner holder that is slidably inserted into the outer holder and into which a cassette is attached, and the inner holder with the cassette attached is placed in a loading position. A cassette loading device that performs cassette loading by sliding the cassette from the holder to the loading completion position, characterized in that an elastic member that presses the inner surface of the outer holder is arranged to slide in conjunction with the inner holder. .