JPH07141736A - Cassette loading device - Google Patents

Abstract

PURPOSE:To obtain a cassette loading device capale of smoothly shifting a cassette without deforming a cassette holder as for a cassette loading device shifting the cassette to a recording and reproducing position. CONSTITUTION:An upper holder piece 14 is moved while being guided by the guide holes 3 and 6 of side plates 2 and 4. A lower holder piece 20 turnably supported by the upper holder piece 14 is energized toward the upper holder piece 14 by a leaf spring 25. The lower holder piece 20 energized by the leaf spring 25 abuts on the projecting part of the upper holder piece 14 so that its turning is regulated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cassette loading device used for a cassette deck or the like.

[0002]

2. Description of the Related Art FIG. 9 shows an outline of a cassette loading device for an on-vehicle cassette deck. In FIG.
Reference numeral 30 denotes a cassette, and a reel around which a magnetic tape is wound is housed in the cassette 30. Reference numeral 31 is a cassette insertion opening of the magnetic recording / reproducing apparatus, and the cassette 30 is inserted from the cassette insertion opening 31. Reference numeral 32 denotes a cassette holder, which has an upper surface 32A, a lower surface 32B, a side surface 32C, and a back plate 32D as shown in FIG. 10, and has a U-shaped cross section. The cassette 30 inserted from the cassette insertion port 31 has a cassette holder 3
The two are inserted and held between the upper surface 32A and the lower surface 32B. When the cassette 30 is held by the cassette holder 32, the loading mechanism operates and the cassette holder 32
Holds the cassette 30, moves horizontally first, and then moves downward to transfer the cassette 30 to a recording position and / or a reproducing position (recording / reproducing position). In addition, cassette 3
When 0 is ejected, the holder 32 is first moved up by the loading mechanism and then horizontally moved to eject the cassette 30 from the cassette insertion opening 31.

[0003]

However, the above-mentioned conventional cassette loading device uses the holder 32 having a U-shaped cross section, which is formed by bending a metal plate.
When the cassette 30 is not horizontally inserted into the cassette insertion port 31 but is obliquely inserted as indicated by an arrow b, the lower surface 32B of the holder 32 is pushed by the inserted cassette 30 and the lower surface 32B of the holder 32 is There is a problem that the cassette 30 is bent and the deformed lower surface 32B comes into contact with another mechanism, so that the cassette 30 is not normally loaded.

The present invention solves the above-mentioned conventional problems, and an object of the present invention is to provide a cassette loading device that can normally transfer a cassette even if the cassette is obliquely inserted. A second aspect of the present invention is directed to surely setting the cassette at the recording / reproducing position with a simple structure. It is another object of the present invention to provide a cassette loading device having a simple structure that does not require a separate member for holding the cassette inserted in the cassette holder.

[0005]

The first invention of the present invention is as follows:
In order to achieve the above object, the transferable first holder piece, the second holder piece rotatably locked to the first holder piece, and the second holder piece are attached to the first holder piece. Of the holder, and a regulating member for regulating the rotation of the second holder piece by the spring member, and the first holder piece and the second holder piece. The cassette holder is characterized in that it is held substantially parallel to each other and the first holder piece and the second holder piece constitute a cassette holder.

A second aspect of the present invention is a side plate provided on a substrate, an L-shaped guide hole formed in the side plate, a first holder piece guided by the guide hole, and a first holder piece. A second holder piece rotatably locked to the first holder piece, a spring member for urging the second holder piece toward the first holder piece, and the second member formed by the spring member.
Regulating member for regulating the rotation of the holder piece, a head substrate slidably supported on the substrate, a hole formed in the head substrate, and a locking projection formed on the second holder piece. When the cassette holder including the first and second holder pieces approaches the head substrate, the locking projection is inserted into the hole of the head substrate, and the head substrate is When sliding, the locking projection is driven by the hole edge of the hole against the biasing force of the spring member.

A third aspect of the present invention is a side plate provided on a substrate, a guide hole formed in the side plate, a first holder piece guided by the guide hole, and a first holder piece. A second holder piece that is rotatably locked to the first holder piece, and a U-shaped leaf spring that is fixed to the first holder piece and urges the second holder piece toward the first holder piece. A first holder piece, comprising: a restricting member for restricting the rotation of the second holder piece by the biasing force of the leaf spring; and a bent portion formed on a protruding portion protruding from the leaf spring. The cassette inserted between the second holder piece and the second holder piece is locked at the bent portion.

[0008]

In the first aspect of the present invention, the second holder piece rotatably locked to the first holder piece is moved in the first holder piece direction by the spring member. Since the cassette is biased to, the cassette holder can be returned to the original position even when the cassette holder is obliquely inserted and the second holder piece is pressed. Abnormal loading can be prevented.

According to the second aspect of the invention, when the cassette holder approaches the head substrate, the second position of the cassette holder
When the locking projection formed on the holder piece enters the hole of the head substrate and the head substrate slides, the locking projection is driven by the hole edge of the hole of the head substrate. As a result, the first holder piece connected to the second holder piece via the spring member is biased toward the substrate by the spring member, and as a result, the cassette is pressed against the substrate by the first holder. Therefore, the cassette can be reliably set at the recording / reproducing position.

Further, according to the third aspect of the invention, the bent portion formed on the protruding portion of the leaf spring for urging the second holder piece toward the first holder piece is inserted into the cassette holder. Since it can hold a cassette, it is not necessary to separately provide a member for holding the cassette in the cassette holder,
The configuration is simple.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIGS.
Will be explained together. The present embodiment is a cassette loading device used for an on-vehicle cassette deck. In FIG. 1, reference numeral 1 is a substrate of a cassette deck, and a loading mechanism, a reel driving mechanism, etc. are attached to the substrate 1.
2 is a right side plate screwed to the upper surface of the substrate 1,
An L-shaped guide hole 3 is formed in the side plate 2. Four
Is a left side plate screwed to the upper surface of the substrate 1, and the side plate 4 is arranged in parallel with the right side plate 2. The side plate 4 is formed with two L-shaped guide holes 5 and 6 (see FIGS. 7 and 8). Reference numeral 7 is a linear guide hole formed in the upper portion of the side plate 4, reference numeral 8 is a drive plate disposed outside the side plate 4, and pins 9A and 9B planted in the drive plate 8 guide the side plate 4. It is inserted in the hole 7. Therefore, the drive plate 8 is guided by the guide hole 7 and moves horizontally along the outer surface of the side plate 4. Reference numeral 10 denotes a rack formed on the lower bent portion of the drive plate 8. The rack 10 is a board 1
Is engaged with a gear (not shown) rotatably supported by the gear. When the gear is rotated by the rotational driving force of the motor, the rack 10 meshed with the gear is driven, and the drive plate 8 is attached to the side plate. 4 along the horizontal direction. Reference numeral 11 is a first guide hole formed in the drive plate 8,
The first guide hole 11 is provided with an inclined portion 1 at one end of the horizontal portion 11A.
It is a shape in which 1B is continuously provided. Reference numeral 12 is a second guide hole formed in the drive plate 8, and the second guide hole 12 is formed so as to be inclined from the side of the drive plate 8.

2 and 3 show a holder 13 arranged between the side plates 2 and 4. 2 and 3, 1
4 is an upper holder piece made by bending a metal plate,
The upper holder piece 14 is composed of an upper plate 14A, a side plate 14B, a side plate 14C, and a back plate 14D. Reference numeral 15 is a T-shaped hole formed in the upper plate 14A of the upper holder piece 14, and a projecting piece 15A is formed at the center of the hole edge of this hole 15, and projections 15B are formed on both sides of this projecting piece 15A. , 15
C is formed. 16 is a protrusion (see FIG. 3) formed by bending a part of the side plate 14B inward, 17A, 17B.
Is an L-shaped small hole formed in the back plate 14D, 18A, 18
B is a pin implanted in the side plate 14B, 19 is a pin implanted in the side plate 14C, and the pins 18A and 18B are inserted into the L-shaped guide holes 5 and 6 formed in the side plate 4, respectively.
The pin 19 is inserted into the L-shaped guide hole 3 formed in the side plate 2. Reference numeral 20 denotes a lower holder piece, and one side of the lower holder piece 20 has a locking piece 21 bent in an L shape.
A and 21B are formed. The locking pieces 21A, 21
B is the small holes 17A, 17 of the back plate 14D of the upper holder piece 14.
After being inserted into B, it is moved in the direction of the side plate 14C. Therefore, the locking pieces 21A, 21B are prevented from coming off by the small pieces 22A, 22B. Reference numeral 23 is a hole formed in the lower holder piece 20, and a reel drive shaft (not shown) can be inserted into this hole 23. Reference numeral 24 is a locking protrusion having an inclined surface formed at its tip. Reference numeral 25 is a leaf spring made of a spring material. The leaf spring 25 includes a U-shaped portion 25A and a T-shaped protruding piece 25B.
Composed of and. 26 is a leaf spring 25 on the upper holder piece 1
4 is a screw for fixing to the upper plate 14A. As described above, the lower holder piece 20 is replaced with the back plate 14 of the upper holder piece 14.
In the state of being locked to D, the U-shaped portion 25A of the leaf spring 25 is fitted from the back plate 14D side and fixed by the screw 26. In this state, the lower holder piece 20 is biased by the leaf spring 25 so as to approach the upper plate 14A of the upper holder piece 14. At this time, part of the lower holder piece 20 is replaced by the upper holder piece 1
The upper plate 14A and the lower holder piece 20 are held substantially parallel to each other because they are regulated by the projecting portion 16 of the fourth side plate 14B. Both end portions 25C, 25 of the protruding piece 25B of the leaf spring 25
D is inserted into the lower surface side of the projections 15B and 15C of the upper holder piece 14. Reference numeral 25E is a bent portion formed on the projecting piece 25B of the leaf spring 25. The bent portion 25E is a T-shaped hole 1
5 is projected from the lower surface of the upper plate 14A.
A head substrate 27 is slidably supported on the upper surface of the substrate 1, and a magnetic head (not shown) is attached to the head substrate 27. The sliding direction of the head substrate 27 is a direction (YY 'direction in FIG. 1) orthogonal to the moving direction of the holder 13 (XX' direction in FIG. 1). 27
A is a hole formed in the head substrate 27.
The protrusion 27B formed on the edge of the hole A is bent at an angle of 90 ° with respect to the head substrate 27. 7 and 8, 29 is a spring, one end of which is locked to the hook portion of the drive plate 8 and the other end of which is locked to the pin 18B.
B is biased to the right (FIGS. 7 and 8) by a spring 29.

Next, the operation of the above embodiment will be described.
When the cassette 28 is inserted from the cassette insertion opening of the cassette deck, the cassette 28 is inserted between the upper plate 14A of the holder 13 and the lower holder piece 20. When the cassette 28 is further inserted into the holder 13, the bent portion 25E of the leaf spring 25 engages with the reel drive shaft insertion hole 28A of the cassette 28 as shown in FIG. It contacts the stopper piece 20A of 20. Therefore, the holder 13 is driven by the cassette 28 and slides in the X direction. When the holder 13 moves a predetermined length, the holder 1
A switch (not shown) is turned on by 3 and the loading motor is rotated. Since the rotational driving force of this motor is transmitted to the rack 10 via the gear mechanism, the drive plate 8 starts moving leftward from the position shown in FIG. As the drive plate 8 moves, the drive plate 8 causes the pins 18A and 18B to move.
Is driven, the holder 13 is guided by the horizontal portions of the guide holes 5 and 6 and moves in the horizontal direction. As the holder 13 moves further in the horizontal direction, the pins 18A and 18B reach the vertical portions of the guide holes 5 and 6. Pins 18A, 18B
Drive plate 8 moves further in the horizontal direction even when reaches the vertical portions of the guide holes 5 and 6, the inclined holes 11B of the drive plate 8
12 drives the pins 18A and 18B downward. Therefore, the holder 13 moves in the vertical direction and approaches the head substrate 27. When the holder 13 reaches a predetermined position in the vertical direction, a switch (not shown) operates and the loading motor stops. In this way, the cassette 28 inserted from the cassette insertion port is held by the holder 13, first moves in the horizontal direction, then moves in the vertical direction, and stops at a predetermined position. When the holder 13 stops at a predetermined position, the locking protrusion 24 of the lower holder piece 20 of the holder 13 enters the hole 27 of the head substrate 27 (see FIG. 5). After that, the head substrate 27 moves in the direction of the arrow Y and the magnetic head (not shown) contacts the magnetic tape in the cassette 28. When the head substrate 27 moves in the direction of the arrow Y, the projecting piece 27B of the head substrate 27 contacts the inclined surface of the locking projecting piece 24 of the lower holder piece 20, as shown in FIG. Therefore, the lower holder piece 20 is driven downward by the projecting piece 27B against the biasing force of the leaf spring 25. Lower holder 2
When 0 is driven downward, the upper holder piece 14 connected via the leaf spring 25 is driven downward, and the cassette 28 is pressed by the upper holder piece 14 toward the substrate 1.

It should be noted that the cassette 28 is inserted into the cassette insertion port from an oblique direction, and the lower holder piece 2 is removed by the cassette 28.
When 0 is pressed, the lower holder piece 20 is locked by the locking pieces 21A, 2A.
Although it rotates about 1B as a fulcrum, it returns to its original position by the urging force of the leaf spring 25. Therefore, there is a problem that the holder is deformed by the cassette as in the conventional example. The above problem is solved by solving the above-mentioned mechanism.

[0015]

According to the first aspect of the present invention, the deformation of the holder due to the cassette can be prevented, and the abnormal loading caused by the deformation of the holder can be prevented. According to the second invention, since the head substrate drives the cassette holder toward the substrate when the cassette is transferred to the recording / reproducing position, the cassette is biased toward the substrate by the spring member so that the cassette is moved to the predetermined position. It is surely set to. Further, according to the third invention, since the cassette inserted into the holder can be held by using the leaf spring that biases the lower holder piece, it is not necessary to separately provide a member for holding the cassette, and the configuration is simplified. It will be.

[Brief description of drawings]

FIG. 1 is a perspective view of a cassette loading device according to an embodiment of the present invention.

FIG. 2 is a perspective view of the cassette holder according to the embodiment.

FIG. 3 is an exploded perspective view of the cassette holder according to the embodiment.

FIG. 4 is an explanatory view of holding a cassette by a leaf spring of the same embodiment.

FIG. 5 is a perspective view of a main part of the embodiment.

FIG. 6 is a perspective view of a main part of the embodiment.

FIG. 7 is a side view of the embodiment.

FIG. 8 is a side view of the embodiment.

FIG. 9 is a schematic explanatory view of a conventional cassette loading device.

FIG. 10 is a schematic perspective view of a conventional cassette holder.

[Explanation of symbols]

 1 board 2 side plate 3 guide hole 4 side plate 5, 6 guide hole 8 drive plate 10 rack 13 upper holder 14 upper holder piece 15 hole 18A, 18B pin 19 pin 20 lower holder piece 21A, 21B locking piece 24 locking projection 25 Leaf spring 27 head substrate 28 cassette

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Yutaka Hino Yutaka Hino 4-3-1 Tsunashima-higashi, Kohoku-ku, Yokohama-shi, Kanagawa Matsushita Communication Industrial Co., Ltd. 4-3-1, Matsushita Communication Industry Co., Ltd. (72) Inventor Junya Takahashi 4-3-1, Tsunashima-higashi, Kohoku-ku, Yokohama-shi, Kanagawa Matsushita Communication Industry Co., Ltd. (72) Inventor Takashi Ichihara Kanagawa Prefecture Matsushita Communication Industrial Co., Ltd., 3-1, Tsunashima Higashi, Kohoku-ku, Yokohama (72) Inventor, Kazuo Hatsumi 4-3-1 Tsunashima-higashi, Kohoku-ku, Yokohama, Kanagawa

Claims (3)

[Claims] 1. A transferable first holder piece, a second holder piece rotatably locked to the first holder piece, and the second holder piece as the first holder piece. A spring member that biases in a direction, and the second member formed by the spring member.
And a regulation member for regulating the rotation of the holder piece, the first holder piece and the second holder piece being held substantially parallel to each other, and the first holder piece and the second holder piece. A cassette loading device consisting of a cassette holder. 2. A side plate provided on the substrate, an L-shaped guide hole formed in the side plate, a first holder piece guided by the guide hole, and a rotation to the first holder piece. A second holder piece that is movably locked, a spring member that biases the second holder piece toward the first holder piece, and a rotation of the second holder piece by the spring member. Restricting member, a head substrate slidably supported on the substrate, a hole formed in the head substrate, and a locking projection formed on the second holder piece,
When the cassette holder composed of the first and second holder pieces approaches the head substrate, the locking protrusion is inserted into the hole of the head substrate, and when the head substrate slides, A cassette loading device characterized in that the locking projection is driven against the biasing force of a spring member by the hole edge of the hole. 3. A side plate provided on the substrate, a guide hole formed in the side plate, and a first guide guided by the guide hole.
Holder piece, a second holder piece rotatably locked to the first holder piece, and the second holder piece fixed to the first holder piece in the first holder piece direction. A U-shaped plate spring for urging the plate spring, a restricting member for restricting the rotation of the second holder piece by the urging force of the plate spring, and a bent portion formed in a protruding portion protruding from the plate spring. A cassette loading device, comprising: a cassette inserted between the first holder piece and the second holder piece, the cassette being locked at the bent portion.