JPH048513Y2 - - Google Patents

Description

[Detailed explanation of the idea] The invention will be explained in the following order.

A. Field of industrial application B. Outline of the invention C. Conventional technology (Figures 6, 7, and 8) D. Problem that the invention aims to solve E. Means for solving the problem F. Effect G. Examples G-1 First embodiment (Fig. 1, Fig. 2) G-2 Second embodiment (Fig. 3, Fig. 4, Fig. 5)
Figure) H Effect of the invention A Field of industrial application The present invention relates to a cassette mounting device for mounting a tape cassette used in a recording/reproducing device such as a video tape recorder into a cassette device position within the device.

B Overview of the invention The invention is based on a slider member that moves a cassette holder that is moved from a position where a tape cassette can be inserted and removed to a position where the cassette is installed in a recording/reproducing apparatus. The slider member is configured to rotate integrally with a gear rotated by a drive motor, and when the cassette holder is transferred to the cassette mounting position, the slider member is rotationally biased to the cassette holder. The spring disposed between the slider member and the gear, which acts to press and support the held tape cassette on the positioning member, is a compression coil spring, and this compression coil spring is attached to a spring fitting portion provided on the slider member. By fitting and arranging the slider member and the gear so as to be buried therein, the mounting portion of the slider member and the gear can be made thinner, and the mounting space can be saved.

C. PRIOR ART Conventionally, in a recording and reproducing apparatus such as a video tape recorder, the tape cassette is inserted and held in order to mount the tape cassette at a predetermined cassette mounting position in the apparatus or to remove the mounted tape cassette. A cassette mounting device is known in which a cassette holder is moved by a drive motor.

This type of cassette loading device has guide members 52 such as guide rollers attached to both sides of a cassette holder 51 as shown in FIG.
2 is engaged with an L-shaped slide guide groove 53 provided on the main body side of the apparatus, and guided by this slide guide groove, the cassette holder 51 moves the tape cassette 54 from a position where the tape cassette 54 can be inserted and removed. The tape reel is engaged with the reel stand 55, the positioning pin 56 is fitted into the positioning hole, and the bottom surface is supported by the height determining pin 57, and the tape reel is mounted so as to be transported to the position where the cassette is installed. There is.

Further, a slider member 59 is attached to one of the guide members 52 of the cassette holder 51 to a spur gear 58 that is rotated by receiving the driving force of the drive motor, and is rotated integrally with the spur gear 58. The slider member 59 is connected via an elongated hole 60 formed in the radial direction. The slider member 59 is formed by extending a transfer operation part 59b in the radial direction from an arcuate base 59a, and the support shaft 62 of the spur gear 58 is inserted through an insertion hole 61 bored in the center of the base 59a. The guide member 52 is rotatably supported by the spur gear 58, and is attached by engaging the guide member 52 with a long hole 60 formed in the transfer operation 59b.

First and second stoppers 63 and 64 for regulating the range of rotation of the slider member 59 are protruded from the main surface of the spur gear 58 on which the slider member 59 is rotatably supported. . Further, on both sides of the base end side of the transfer operation portion 59b of the slider member 59, there are first and second locking step portions 65, 66 that abut the respective stoppers 63, 64, respectively.
is formed, and the slider member 59 is connected to the first
and the transfer operation section 5 between the second stoppers 63 and 64.
By being supported by the support shaft 62 so that the portion 9b extends, the rotation range is restricted by the stoppers 63 and 64, and the mounting is performed.

Further, a spring hook pin 67 is installed between the insertion hole 61 and the elongated hole 60 of the slider member 59 as shown in FIGS. 7 and 8, and a second stopper 6
Similarly, a spring hook pin 68 is installed on the top of the slider member 59, and a tension spring 69 is stretched between these spring hook pins 67 and 68. The second locking step portion 66 is rotated in the position direction and is urged to rotate in the position direction.
It is attached to the stopper 64 of.
When the spur gear 58 is rotationally driven by a drive motor (not shown), the slider member 5
9 is rotated integrally with the spur gear 58 under the urging force of the tension spring 69. By rotating the slider member 59,
The cassette holder 51 is guided by the slide guide groove 53 and is moved between a position where the tape cassette 54 can be inserted and removed and a cassette mounting position.
When the cassette holder 51 is transferred until the tape cassette 54 is positioned and attached to the positioning pin 56 and the height determining pin 57, the movement of the cassette holder 51 is stopped and the slider member 5
9 is also prevented from rotating. Here, further spur gear 5
8 is rotated, the slider member 59 resists the urging force of the tension spring 69 and moves to the first stopper 63.
It will be rotated relatively to the side. When the rotation of the spur gear 58 is stopped, the slider member 59 is biased by the tension spring 69 in the direction of arrow A in FIG. 6, thereby pressing and biasing the cassette holder 51 downward in FIG. However, the cassette holder 5
The tape cassette 54 inserted into the tape cassette 1 is crimped and supported by a positioning pin 56 and a height determining pin 57.

D Problems to be Solved by the Invention By the way, in the conventional cassette mounting described above, the tension spring 69 that presses and supports the tape cassette 54 positioned and mounted at the cassette mounting position.
is the slider member 59 and the second stopper 64
The slider member 59 is tensioned between the spring hanging pins 67 and 68 set up above.
By arranging the spur gear 58 and the slider member 59 one above the other, the thickness of the mounting portion of the spur gear 58 and the slider member 59 increases, as shown in FIG. 8, and an increase in the mounting space cannot be avoided.

Further, since the tension spring 69 is used as the spring for biasing the slider member 59 to rotate, the spring hook pins 67 and 68 are required as described above, resulting in an increase in the number of parts.

Therefore, the present invention aims to reduce the thickness of the spur gear and slider member mounting parts in the above-mentioned cassette mounting device, save mounting space, and further reduce the number of parts to facilitate assembly. The aim is to provide what is intended.

E Means for Solving the Problems In order to solve the above-mentioned conventional problems and achieve the above object, the present invention engages guide members with each of a plurality of slide guide grooves, and the slide guide grooves A cassette holder holds a tape cassette that is guided by a tape cassette, and a gear rotatably rotated by a drive motor. The slider member is attached by engaging one of the guide members that engages the slide guide groove with a long hole bored through the slider member, and the slider member has one side attached to the gear. A spring fitting part is attached to the other side opposite to the one side that is stopped by the stopper part, and a compression coil spring is disposed between the spring fitting part and the gear. The cassette is rotated by the slider member, which is rotatably biased and attached to the stopper portion side and rotated integrally with the gear, and the gear is rotated and rotated together with the gear. When the holder is moved to the cassette mounting position, the tape cassette held by the cassette holder is crimped and supported on the positioning member by a compression coil spring that biases the slider member to rotate.

F. Function The present invention is characterized in that a slider member that transports a cassette holder that transports a tape cassette from a position where it can be inserted and removed to a position where the cassette is installed in a recording/reproducing apparatus is driven by a drive motor that rotates the slider member. When the cassette holder is moved to the cassette mounting position, the slider member is rotatably biased so that the cassette holder is held by the cassette holder. The spring disposed between the slider member and the gear, which acts to press and support the tape cassette on the positioning member, is a compression coil spring, and this compression coil spring is embedded in a spring fitting portion provided on the slider member. By fitting and arranging the slider member and gear in this manner, the mounting portions of the slider member and the gear can be made thinner, and the mounting space can be saved.

G. Embodiments Hereinafter, specific embodiments of the present invention will be described with reference to the drawings.

G-1 First Embodiment As shown in FIG. 1, the cassette mounting device according to the present invention has a cassette holder 2 into which a tape cassette 1 is inserted and held. This cassette holder 2 has an insertion/ejection opening for the tape cassette 1 on the front side, and the tape cassette 1 inserted through this insertion/ejection opening.
A positioning pin 3a and a height determining pin 3b, which are positioning members for the tape cassette 1, are provided on the bottom wall of the apparatus main body.
An opening is provided so that you can see the

Guide member mounting plates 4 are attached to both sides of the cassette holder 2, and guide rollers 5, which are guide members, are mounted via the guide member mounting plates 4.
6 and 7 are installed. These guide rollers 5, 6, and 7 are arranged in L-shaped slide guide grooves 9, 1, which are bored in a side plate 8 provided on the main body side of the device.
0,11. The cassette holder 2 is guided by the slide guide grooves 9, 10, and 11, and the tape cassette 1 is engaged and supported on the positioning pin 3a and the height determining pin 3b from a position where the tape cassette 1 can be inserted and removed. The tape cassette can be transferred between the mounting positions where the tape cassette is positioned and mounted.

The first guide roller 5, which is located at the center of the side surface of the cassette holder 2 among the guide rollers 5, 6, and 7, has a support shaft 14 of a spur gear 13 that is rotated by receiving the driving force of a drive motor 12. A slider member 15 attached thereto is connected via an elongated hole 16. The slider member 15 is formed by extending a transfer operation part 15b in the radial direction from an arc-shaped base 15a, and the support shaft 14 of the spur gear 13 is inserted through an insertion hole 17 bored in the center of the base 15a. The guide roller 5 is rotatably supported by the spur gear 13, and is attached to the guide roller 5 by engaging the elongated hole 16 formed in the transfer operation 15b.

First and second stoppers 18 and 19 for regulating the range of rotation of the slider member 15 are protrudingly provided on the main surface of the spur gear 13 on which the slider member 15 is rotatably supported. . Further, on both sides of the base end side of the transfer operation portion 15b of the slider member 15, there are first and second locking step portions 20 and 21 that abut the respective stoppers 18 and 19, respectively.
is formed, and the slider member 15 is connected to the first
The transfer operating portion 15b is supported by the spindle 14 so as to extend into the notch 22 formed in the spur gear 13 between the second stoppers 18 and 19. It is installed with a restricted rotation range.

Further, in the second locking step portion 21 of the slider member 15 facing the second stopper 19,
A spring fitting portion 23 having a concave shape is provided, and a compression coil spring 24 is disposed between the spring fitting portion 23 and the second stopper 19 with one end fitting into the spring fitting portion 23. The slider member 15 is attached in a state in which the cassette holder 2 is urged to rotate in the direction of the arrow X in FIG. The slider member 15 attached in this way is attached to the spur gear 1
3 is rotationally driven, it becomes possible to rotate integrally with this spur gear 13.

The spur gear 13 and the drive motor 12 are connected via an intermediate gear 28 that rotates coaxially with a worm gear 27 that meshes with a worm gear 26 attached to a drive shaft 25 of the drive motor 12.

In the cassette mounting device configured as described above, the slider member 15 is rotated integrally with the spur gear 13 by driving the drive motor 12, thereby moving the cassette holder 2 into the slide guide grooves 9, 1.
Perform the transfer operation along lines 0 and 11. That is, the first
As shown in the figure, each guide roller 5, 6, 7 has a horizontal portion 9a,
10a, 11a, the tape cassette 1 is inserted into and removed from the cassette holder 2 when the cassette holder 2 is in the raised position and the cassette insertion/removal opening faces outward.
When the drive motor 12 is driven by inserting the worm gear 26, the worm wheel 27, and the intermediate gear 28, the spur gear 13 is inserted into the worm gear 26, the worm wheel 27, and the intermediate gear 28.
It is rotated in the direction of arrow X in FIG.
When the spur gear 13 is rotated, the slider member 15 also rotates in the same direction, and the cassette holder 2, which engages the first guide roller 5 in the elongated hole 16 of the slider member 15, Rollers 5, 6, 7 are inserted into each slide guide groove 9, 10, 1
1 in the horizontal direction of the Y direction in FIG.
When reaching 10b and 11b, it is transported in a direction perpendicular to the Z direction in FIG. And each guide roller 5,
6 and 7 reach the lower ends of the vertical portions 9b, 10b, and 11b of the slide guide grooves 9, 10, and 11, and the cassette holder 2 reaches the lower position in the main body of the apparatus as shown in FIG. The tape cassette 1 held at 2 has a positioning hole drilled in its bottom surface fitted with a positioning pin 3a, and its bottom surface is supported by a height determining pin 3b, and is held in position on these positioning pins 3a and 3b. Then, the tape cassette is positioned and mounted at a predetermined tape cassette mounting position. At this time, the tape reel of the tape cassette 1 engages with a reel stand (not shown).
In this state, the slider member 15 receives the urging force of the compression coil spring 24 and is urged to rotate in the direction of arrow Z in FIG. and is crimped and supported on the height determining pin 3b.

Furthermore, when the eject button is operated to drive the drive motor 12 in the reverse direction with the tape cassette 1 mounted at the tape cassette mounting position as shown in FIG. The slider member 15 is moved to a position where the tape cassette 1 can be inserted and removed.

The cassette mounting device configured as described above includes a compression coil spring 24 that rotationally biases the slider member 15, presses the cassette holder 2 through the slider member 15, and presses and supports the tape cassette 1 at the cassette mounting position. is slider member 1
5, it can be installed without protruding above the slider member 15, and the mounting portions of the spur gear 13 and the slider member 15 can be made thinner. It is planned.

G-2 Second Embodiment In the example described below, the mounting portion of the spur gear 13 and the slider member 15 is further made thinner, and the slider member 15 is mounted so as to fit into the spur gear 13. , the slider member 15 is arranged within the thickness of the spur gear 13.

That is, in this example, as shown in FIG. An arcuate recess 31 having the same depth as the thickness of the slider member 15 is formed, and a substantially fan-shaped notch fitting portion 32 into which the transfer operation portion 15b is fitted is formed continuously to the arcuate recess 31. There is. Both side surfaces of this notched fitting portion 32 serve as first and second stoppers 18 and 19.
Further, the base end side of the transfer operation section 15 of the slider member 15 has a shape corresponding to the above-mentioned notch fitting section 32, and is formed in a size that allows it to fit loosely into this fitting section 32 with a gap. ing. Both sides of the proximal end of the transfer operation section 15 serve as first and second abutment and locking surfaces 33 and 34 for the first and second stoppers 18 and 19, respectively. This second abutment locking surface 3
4 has a spring fitting portion 23 formed as a hollow hole into which one end of a compression coil spring 24 is fitted.

The slider member 15 is constructed by inserting the support shaft 14 through the insertion hole 17, fitting the base portion 15a into the arc-shaped recess 31 of the spur gear 13, and fitting the transfer operation portion 15b into the notch fitting portion 32. As shown in FIG. 5, it is installed with the same thickness as the spur gear 13. At this time, the slider member 15 becomes rotatable by the spur gear 13 within the gap formed between the slider member 15 and the notch fitting portion 32 .

Furthermore, a compression coil spring 24 is disposed between the spring fitting part 23 and the second stopper 19, with one end fitting into the spring fitting part 23 bored in the slider member 15, as shown in FIG. The slider member 15 is rotatably biased and mounted so that the first stopper 18 abuts and locks the first abutting surface 33 . The slider member 15 mounted in this manner is rotatable together with the spur gear as in the first embodiment described above.

By applying the spur gear 13 and slider member 15 assembled as described above to the cassette mounting device shown in FIGS. 1 and 2, the cassette mounting position can be mounted in the same manner as in the first embodiment. The tape cassette 1 is pressed and supported by the biasing force of the compression coil spring 24.

H. Effects of the Invention As described above, the present invention provides that the slider member for transporting the cassette holder, which is operated to transport the tape cassette from the position where the tape cassette can be inserted and removed to the position where the cassette is installed in the recording and reproducing apparatus, is operated by the slider member. The slider member is configured to rotate integrally with a gear that is rotated by a drive motor that rotates the slider member, and when the cassette holder is transferred to a cassette mounting position, the slider member is biased to rotate. The spring disposed between the slider member and the gear, which acts to press and support the tape cassette held by the cassette holder on the positioning member, is a compression coil spring, and the compression coil spring is provided on the slider member. Since it is arranged so as to be embedded in the spring fitting portion, the mounting portion of the slider member and the gear can be made thinner, and the mounting space can be saved.

In addition, by fitting the compression coil spring into the spring fitting portion provided on the slider member, it can be installed at the same time as the slider member is installed, making the installation easy. This eliminates the need for pins, etc. for this purpose, resulting in a reduction in the number of parts.

[Brief explanation of drawings]

Fig. 1 is a side view showing the cassette mounting device according to the present invention, with the cassette holder in a position where the cassette can be inserted and removed, and Fig. 2 a side view with the tape cassette installed in the cassette mounting position. It is. FIG. 3 is an exploded perspective view showing a spur gear and a slider member applied to another embodiment of the present invention, FIG. 4 is a plan view of the assembled state, and FIG. 5 is a side view thereof. FIG. 6 is a side view showing a conventional cassette mounting device, FIG. 7 is a plan view showing a spur gear and a slider member, and FIG. 8 is a side view thereof. 1... Tape cassette, 2... Cassette holder, 3a... Positioning pin, 3b... Height determining pin, 5, 6, 7... Guide roller, 9, 10, 1
1...Slide guide groove, 13...Spur gear, 15
... Slider member, 16 ... Long hole, 18 ... First stopper, 19 ... Second stopper, 23 ...
...Spring fitting part, 24...Compression coil spring.

Claims (1)

[Scope of Claim for Utility Model Registration] A cassette holder that holds a tape cassette that is guided by a plurality of slide guide grooves and is guided by the slide guide grooves to be transferred; and a drive motor. One of the guide members is rotatably supported with respect to the gear via the spindle of the gear to be rotated, and has a long hole drilled in the radial direction that engages with the slide guide groove. The slider member has a slider member that is attached in an engaged manner, and one side of the slider member is locked to a stopper portion provided on the gear, and the slider member has a side opposite to the one side that is locked to the stopper portion. A spring engaging portion is provided on the other side, and a compression coil spring is disposed between the spring engaging portion and the gear, and is attached to the stopper portion side with rotation bias, and rotates integrally with the gear. when the gear is rotated and the slider member rotated together with the gear moves the cassette holder to a cassette mounting position;
A cassette mounting device configured to press and support a tape cassette held by the cassette holder on a positioning member by means of a compression coil spring that rotationally biases the slider member.