JPS62128055A - Recording carrier setting device - Google Patents

Abstract

PURPOSE:To move smoothly a recording carrier holding body by constituting a groove of a sliding body with a vertical groove part and an inclined groove part. CONSTITUTION:The angle formed between a side wall which pushes a pin 17 and a guide groove part which guides the pin 17 in sections A-D is theta1, theta2, theta3, and theta4 respectively. The angle theta1 is 90 deg., and the pin 17 is pushed most efficiently and is moved in the section A. Angles theta2 and theta4 are 55 deg. together, and the pin 17 is pushed more efficiently than a conventional example and is moved in sections B and D because they are larger than 45 deg.. The angle theta3 is 110 deg., and the pin 17 is pushed more efficiently in the section C than sections B and D and is moved. Thus, the pin 17 is pushed efficiently and moved in not only sections of horizontal movement but also sections of vertical movement, and the load of a motor 28 is lighter than conventional.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a record carrier mounting device.

2. Description of the Related Art Generally, in a tape cassette mounting device, a cassette holder is movably supported along the guide grooves by fitting pins on both sides into abbreviated guide grooves formed on support plates on both sides. When the arm rotates or the sliding body slides, the cassette holder is guided by the guide groove and first moves horizontally and then vertically from the insertion position where the tape cassette is inserted. The tape cassette is installed at a mounting position.

Problems to be Solved by the Invention In the configuration in which the cassette holder is moved by the rotation of the arm, the angle between the arm and the guide groove and the length of the arm change from time to time according to the rotation position of the arm. The load on the motor that rotates the arm fluctuates, making it difficult to load the tape cassette smoothly.

Japanese Unexamined Patent Publication No. 60-74145 discloses an example using a sliding body. As shown in FIG. 7, a linear groove 1 inclined at an angle α with respect to the horizontal direction is formed in the sliding body, and the pin 2 is pushed by the side surface 1a of this groove 1.
It moves along the letter-shaped guide groove 3. Guide groove 3 on side 1a
The pressure angle for the horizontal groove 3a of the guide groove 3 is a constant angle β (=α), and the pressure angle for the vertical groove 3b is also constant at an angle γ (−90−α). While the pin 2 is moving inside the vertical groove 3b
There is no load differential while moving within the The above pressure angle is the ratio of the force effectively used to move the pin 2 in the direction of the guide groove 3 to the force of the side surface 1a pushing the pin 2,
In other words, it determines the efficiency of moving the pin 2 along the guide groove 3. The efficiency is maximum when the pressure angle is 90 degrees, the motor's [1 load is minimum], and as the pressure angle decreases, the efficiency also decreases. The load on the motor increases.

If the inclination angle α of the groove 1 is set to be larger than 45 degrees, then the pin 2
The efficiency of moving the pin 2 in the horizontal groove 3a becomes better, but the efficiency of moving the pin 2 in the vertical groove 3b becomes worse. Moreover, if the pressure horn angle α is made smaller than 45 degrees, the above will be reversed. That is, the pin 2 is connected to the horizontal groove 3a and the vertical groove 3b.
If you try to improve the efficiency of moving one of them, the efficiency of moving the other one will be sacrificed. Therefore, it is not possible to set the inclination angle α to an arbitrary value,
The inclination angle α is set at about 45 degrees, and the efficiency when the pin 2 moves in the horizontal groove 3a and in the vertical groove 3b is about 50%, and it was impossible to increase it further. .

An object of the present invention is to provide a record carrier mounting device that solves the above problems.

Means for Solving the Problems In the present invention, the groove of the sliding body is formed into a shape consisting of a vertical groove part and an inclined part, and the follower of the record carrier holder is located within the abbreviated guide part of the support body. In the section along the horizontal guide section,
The vertical side surface of the vertical groove pushes the follower, and the inclined side surface of the inclined groove pushes the follower in a section where the follower follows the vertical guide section.

Embodiment Next, an embodiment of the record carrier mounting device according to the present invention will be described.

As shown in FIGS. 2 and 3, the cassette holder 10 is provided between vertical support plates 11.12 on both sides. Sliding bodies 13.14 are provided on the outside of the support plates 11.12 so as to be slidable in the directions of arrows X+ and X2, respectively.

A pair of abbreviated guide grooves 15 and 16 are formed in the support plate 11. A similar guide groove (not shown) is also formed in the support plate 12. The cassette holder 10 has a pair of pins 17.18 on one side that fit into guide grooves 15.16, and a pair of pins 19.20 on the other side that fit into corresponding guide grooves (not shown). It is supported in a fitted state and is movable between the cassette insertion position shown in FIGS. 2 and 3 and the cassette mounting position shown in FIG.

The sliding body 13 is provided with regulating grooves 21.22 that intersect with the guide grooves 15.16. The regulating grooves 21, 22 are fitted with pins 17, 18, respectively. Sliding body 1 on the opposite side
A similar regulating groove (not shown) is also formed in 4.
Pins 19 and 20 are fitted in the . Each sliding body 13.14
A rack 23, 24 is formed in each. Rack 23
．． 24 are meshed with gears 25 and 26, respectively.

When the Arp cassette 2 is inserted into the cassette holder 1o in the direction of the arrow X1 while the cassette holder 10 is in the cassette insertion position shown in FIGS. 25 and 26 rotate, and the sliding bodies 13 and 14 slide in the direction of arrow X1. Pin 17-2
0 is regulation) Guide groove 1 is pushed by the side wall of Toma 21 and 22
5°16, the cassette holder 10 moves along the arrow
The tape cassette 27 is moved in the + force direction and then in the direction of the arrow Y1 to reach the cassette mounting position shown in FIG. When the eject operation is performed, the motor 28 reverses, and the sliding body 13.1
4 moves in the direction of arrow x2, and the cassette holder 10 moves together with the tape cassette 27 in the direction of arrow Y2, then in the direction of arrow x2, and reaches the cassette insertion position.

Next, the moving state of the pull bottle 17 during the above-mentioned cassette mounting operation will be explained with reference to FIGS. 1, 5(A) to 5(F), and FIG. 6.

As shown in FIG. 1 and FIG. 5(A), the guide groove 15 is
Horizontal guide groove portion 15A extending in the direction of arrow ×1 and arrow Y
It consists of a vertical guide groove part 15B extending in one direction and an inclined guide groove part 15C extending in the lower right 35 degree direction and connecting both groove parts.

The regulation groove 21 is a vertical regulation groove 2 extending in the direction of arrow Y1.
1A and arrow X + horizontal regulation extending in the force direction 1M8JI21
B, and an inclined regulating groove 21C extending in the lower left 35 degree direction and connecting both groove sections.

The regulating groove 21 and the guide groove 15 are shown in FIGS. 1 and 5 (A).
As shown in (F), the regulation groove 21 (vertical regulation groove 2
When the left side wall 21Aa) of 1△ moves from Pl to Pro in the arrow ×1 direction, the vertical regulation groove 21A intersects the horizontal guide groove 15A and the inclined guide groove 15C, and the inclined regulation groove 2IC intersects with the inclined guide groove 15C. 15G and vertical guide groove part 1
5'B, and the horizontal regulation groove 21B intersects with the vertical guide groove 1.
It is arranged in a positional relationship that intersects with 5B.

The bottle 17 is located at the intersection of the regulation groove and the guide groove, and moves along the guide groove while being regulated by the regulation groove.

When the cassette holder 10 is located at the cassette insertion position, the regulation groove 21 is at the position @P1 shown in FIG. 5(A), and the vertical regulation groove 21A intersects with the horizontal guide groove 15A. The regulation groove 21 goes from Pl to B2, B3, and B4.
In section A reaching , the bottle 17 is pushed by the left vertical side wall 21Aa of the vertical regulation groove 21A and moves in the x1 direction of the arrow along the horizontal guide groove 15A.

Beyond B4, as shown in Figure 5 (B) and (C),
The bottle 17 is pulled out from the horizontal guide groove 15A and enters the inclined guide groove 15C. Note that the bottle 17 is still regulated by the vertical regulation groove 21A. B5 than B4
In section IS reaching B6 via
Move diagonally downward along.

Beyond B6, as shown in Figure 5 (C) and (D),
The bottle 17 is pulled out from the vertical regulation groove 21A and enters the inclined regulation groove 2IC. In section C from B6 to B7, the bottle 17 is pushed by the upper inclined side wall 21Ca of the inclined regulation groove 21G and moves obliquely downward along the inclined guide groove 15G.

Beyond B7, as shown in Figure 5 (D) and (E),
The bottle 17 exits from the inclined guide groove 15G and enters the vertical guide groove 15B. In the section from B7 to B9 via B8, the bottle 17 is pushed by the side wall 2IC,a and moves in the direction of arrow Y1 along the vertical guide groove 15B.

When it reaches just before Pro, the bottle 17 is in the slope regulation groove 21C.
It is pulled out and enters the horizontal regulation groove 21B. Pr
When the position reaches position o, the position of the bottle 17 is regulated within the vertical guide groove 15B by the horizontal regulation groove 21B, as shown in FIG. 5(F).

The above operations can be summarized in correspondence to the section A-D as shown in FIG. In the figure, 40 is a section where the bottle 17 is guided by the horizontal guide groove section 15A, 41 is a section where the bottle 17 is guided by the inclined guide groove section 15G, and 41 is a section where the bottle 17 is guided by the inclined guide groove section 15G.
7 indicates a section guided by the vertical guide groove portion 15B.

44 indicates a section where the bottle 17 is regulated by the vertical regulation groove 21A, 45 indicates a section where the bottle 17 is regulated by the inclined regulation groove 21C, and 46 indicates a section where the bottle 17 is regulated by the horizontal regulation groove 21B. Ward rW140-43 and section 4
4.45, the part where sections 44 and 40 overlap is section A, the section where sections 44 and 41 overlap is section B2, the section where sections 45 and 41 overlap is section C1, and section 45 and 43. The overlapping part is an interval.

Next, the efficiency with which the side wall of the regulation groove 21 pushes the bottle 17 in the direction of the guide groove 15 in each of the sections A-D will be explained.

The side wall pushing the bottle 17 and the bottle 17 in each section A-D
As shown in Fig. 1 and Figs. 5 (A) to (C) and (0), the angle formed by the guide groove is θ12 in section A, θ2° in section B, and θ31 in section C. In the section, the angle is θ4.

Angle θ! is 90 degrees, and in section A the bin 17 is pushed and moved with maximum efficiency.

Since the angles θ2 and θ4 are both 55 degrees, which is greater than 45 degrees, the bin 17 is pushed and moved more efficiently in sections B and D than in the conventional example shown in FIG.

The angle θ3 is 110 degrees, and in section C, the bin 17 is
It is pushed and moved more efficiently than in sections B and D.

Therefore, compared to the conventional example shown in FIG. A smaller motor can be used than before.

Also, since the angles θ1 to θ4 do not change within each section A-D, there is no change in load within each section A-D, the load is constant, and the bin 17 (cassette holder 10) moves smoothly from t to t. do.

Incidentally, the angle θ1 is unrelated to the inclination angle of the inclination regulating groove portion 21G, and the inclination angle of the inclination regulating portion 21C can be set by particularly adjusting the efficiency of pushing the bottle 17 in the section. As mentioned above, the angle is 35 degrees. From this, the angle θ4 becomes 55 degrees.

The remaining bins 18, 19, and 20 move in the same manner as the bin 17, and the cassette/holder 10 moves smoothly and reaches the mounting position with a smaller load than before.

During the eject operation, the opposite side walls of the regulating grooves 21C and 21A efficiently push the pin 17, etc., and the cassette holder 10 moves smoothly to the insertion position with a smaller load than before.

In addition, the regulating groove 21 (22) is shown in Fig. 4 and Fig. 5 (F).
The length of the horizontal regulating groove 21B (see FIG. 5(A)) is determined so that in the cassette mounted state shown in FIG. Therefore, there is a large degree of freedom in the timing of stopping the motor 28, no precision is required for the mounting position of the switch for stopping the motor 28, and assembly is easy.

Further, the guide groove 15 (16) may have a shape having an arcuate groove portion instead of the inclined guide groove portion 15G.

Furthermore, as is clear from FIG.
This is done in the section guided by the inclined guide groove 15C or the above-mentioned arcuate groove.

Therefore, the above switching is performed smoothly.

Furthermore, the inclination angle of the inclination regulating groove portion 21G of the regulating groove 21 is not limited to the above-mentioned 35 degrees, but may be any suitable angle of 45 degrees or less.

Furthermore, the present invention is not limited to the mounting of the tape force set 1-, but can be similarly applied to the mounting of tape cartridges, disks, etc.

Effects of the Invention As described above, according to the record carrier mounting device of the present invention,
The record carrier holder can be moved with the best efficiency in the horizontal direction, and can be moved with the best efficiency determined by the inclination angle of the inclined groove portion in the vertical direction. The present invention has the advantage that the load can be reduced compared to the conventional one, and therefore the record carrier holder can be moved smoothly, and the record carrier mounting operation can be carried out stably and reliably.

[Brief explanation of drawings]

Fig. 1 is a diagram schematically showing how the side wall of the regulating groove pushes the bottle and the bottle moves along the guide groove during the tape cassette mounting operation, Fig. 2 and Fig. 3 respectively show how the cassette holder is FIG. 4 is a plan view and a front view of an embodiment of the record carrier loading device according to the present invention, showing the state when the cassette is inserted, and FIG. ) to (F) are diagrams showing the positional relationship between the regulating groove and the guide groove and the movement state of the pin during the cassette mounting operation process, respectively, and FIG. FIG. 7 is a diagram illustrating a state of regulation by each groove portion of a pin regulation groove, and FIG. 7 is a diagram illustrating a state of movement of a pin in an example of a conventional tape cassette mounting device. 10... Cassette holder, 11.12... Support plate,
13.14...Sliding body, 15.16...Guide groove, 1
58...Horizontal guide groove part, 15B...Vertical guide groove part,
15C... Inclined guide groove part, 17.18, 19.20.
...Pin, 21.22...Regulation groove, 21A...Vertical regulation groove, 21B...Horizontal regulation groove, 21C...Inclination regulation groove, 23.24...Rack, 25.26.2
9...Gear, 27...Tape cassette, 28...
Motor, 30°31...Reel axis, 40~46...
section.

Claims (1)

[Claims] a record carrier holder holding a record carrier and having a follower;
A horizontal guide part that guides the follower in the horizontal direction and a vertical guide part that guides the follower in the vertical direction are formed, and the record carrier holder is arranged between an insertion position where the record carrier is inserted and a position where the record carrier is mounted. It has a support that is movably supported in a substantially L-shape between the position of the device and the device position, and a groove that engages with the follower, and moves in the horizontal direction to restrict the follower with the groove. In a record carrier mounting device comprising a sliding member that moves along the guide groove to move the record carrier holder in a substantially L-shape, the follower moves the groove of the mounting member to the horizontal guide portion. The structure includes a vertical groove portion into which the follower fits in a section where the follower moves along the vertical guide portion, and an inclined groove portion where the follower fits in a section where the follower moves along the vertical guide portion; A record carrier mounting device characterized in that the perpendicular side wall of the vertical groove pushes the follower in the vertical guide part, and the inclined side wall of the inclined groove pushes the follower in the vertical guide part.