JPS6343555Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a cassette loading device.

For example, in a loading device, a mechanism is provided for loading and unloading a cassette loaded with a printed circuit board (controlling IC) (different ICs are loaded depending on the type of calculation) from the controller. . In this case, attach the cassette to the storage case of the control device (the IC is connected but the power is off)
After that, when the storage case is pushed down together with the cassette, the limit switch is turned on, and the IC and control device are connected, power is turned on, and commands are issued from the IC. When removing the cassette, push the pressed-down cassette further (two-stage push).
This turns off the limit switch, turns off the power, disconnects the IC and the control device, and returns the cassette storage case to the upper position, allowing the cassette to be removed.

The object of the present invention is to propose a cassette mounting device that can reliably perform the above-mentioned setting by one-stage pushing and resetting by two-stage pushing.

One embodiment will be described below based on the drawings.
First, the reference point for the words and phrases used in this invention that indicate front, rear, left, and right directions is that in the side view showing the operating state in FIG. 1, the insertion direction of the cassette 15 into the storage case 4 is from the upper left side. , in a standing position facing the insertion direction of the cassette, and in that position, the right hand side is defined as the right direction, the left hand side is defined as the left direction, the front side is defined as the front part or near side, and the front side is defined as the rear part or front side.

In FIGS. 1 and 5 to 7, 1 indicates the base on the control device side, and 2 indicates the opening of the cover. Reference numeral 3 denotes a pair of left and right fixed brackets that stand up from the base 1, and a leg plate 5, which is connected from the rear lower surface of the storage case 4, is attached to the upper end of the rear part thereof via a pin 6 in the left and right direction. can swing vertically around the axis of the pin 6. Reference numeral 7 denotes a torsion spring attached to the pin 6, one end of which is received by the base 1 and the other end of which is received by the lower surface of the storage case 4, thereby biasing the storage case 4 upwardly. 8 is a cam plate having a similar triangular shape, and its base end corner 8a
is attached to the upper front end of the fixed bracket 3 via a pin 9 in the left and right direction, and can swing up and down in front of this pin 9. The cam plate 8 has an upper corner portion 8 of the remaining two corner portions 8b and 8c.
A tension spring 10 provided between the base 1 and the base 1 is biased to protrude toward the front. Figure 5~
As shown in FIG. 7, a loop-shaped cam groove 11 is formed on the inner surface of the cam plate 8. As shown in FIG. That is, the cam groove 11 extends from the starting point A near the pin 9 pivot point to the first intermediate point B near the upper corner 8b.
A guide portion 11A and a second guide portion 1 extending from the first intermediate point B to a second intermediate point C near the lower corner portion 8c.
1B and a third guide portion 11C extending from the second intermediate point C to the end point D near the starting point A. Then, a curved portion toward the intermediate pin 9 of the second guide portion 11B is formed, and this curved portion is formed at the locking point E.
It is said that The depth of the cam groove 11 is the same in the first and second guide parts 11A and 11B, and gradually becomes shallower in the third guide part 11C. Therefore, the end point D
A step F is formed in the communication portion between the starting point A and the starting point A. In FIGS. 1 and 5, reference numeral 12 denotes a bracket extending vertically from the lower surface of the storage case 4, and a cam pin 13 that engages with the cam groove 11 from the left is attached to the lower end of the bracket. That is, the cam pin 13 is attached to the bracket 12 so as to be movable in the left-right direction with respect to the cam groove 11, and is urged to move by a compression spring 14 so as to engage with the cam groove 11.
15 indicates a cassette. In FIG. 1, reference numeral 16 denotes a connector attached to the rear end of the storage case 4, which is connected to the cassette 15 housed in the storage case 4. A limit switch 17 is attached to the base 1 or the fixed bracket 3, and its operating rod 18 faces the lower surface of the storage case 4. This limit switch 17 is connected to the connector 1 via a cord 19.
6 and further connected via a cord 20 to the electrical circuit of the control device. Also limit switch 1
7 is off when not pressed, is turned on by pressing one step, and is turned off by pressing two steps.

FIG. 1 shows a state in which the cassette 15 is stored in the storage case 4 which has been moved upward by the torsion spring 7.
At this time, the rear part of the cassette 15 fits into the connector 16 and the two are connected, but the limit switch 17
Since it is off, the power is not on. Furthermore, at this time, the cam pin 13 is moved to the starting point A of the cam groove 11.
, and the cam plate 8 is located at the tension spring 10
It is being swung forward by the In this state, the storage case 4 side is pushed down in the first step, and the storage case 4 is moved down around the pin 6 against the torsion spring 7 as shown in FIG. Then, the cam pin 13 that moves downward around the pin 6 is guided by the first guide portion 11A, and at this time the cam plate 8 swings forward around the pin 9 against the tension spring 10. Note that the cam pin 13 does not enter the third guide portion 11C side due to the presence of the step F. The cam pin 13 that has moved through the first guide section 11A continues to move through the second guide section 11B, but when the cam pin 13 faces the locking point E on the way, the elastic force of the tension spring 10 causes the cam pin 13 to move through the second guide section 11B. 8 is swung forward slightly, and the cam pin 1
3 stops at the locking point E and is held as shown in FIG. In this state, the storage case 4 is completely accommodated within the cover opening 2, and is in the set (locked) state. This state is a one-step push, which turns on the limit switch 17 and connects the IC of the cassette 15 to the control device.
The power is turned on and commands are issued from the IC. When resetting, push down the storage case 4 side further (push down two steps). Then, the cam pin 13 disengages from the locking point E, moves further along the second guide portion 11B, and becomes free in front of the second intermediate point C, as shown in FIG. At this time, the elastic force of the tension spring 10 is acting on the cam plate 8, so the cam plate 8 is swung forward to position the cam pin 13 at its second intermediate point C, as shown in FIG. be moved. By such two-step pressing, the limit switch 17 is turned off again, and the power is cut off. Thereafter, by releasing the pressing force on the storage case 4 side, the storage case 4 moves upward around the pin 6 due to the elastic force of the torsion spring 7, and at this time, the cam pin 13 moves the third guide portion 11C. It ascends, reaches the end point D, and then returns to the starting point A, thereby returning to the state shown in FIG. 1. Note that the cam pin 13 is the third
While moving the guide portion 11C, it gradually moves to the left against the compression spring 14, and then returns to the starting point A and moves inward again.

As described above, according to the present invention, the cassette can be set by pushing the storage case side one step, and can be reset by pushing the storage case side two steps, thereby making it possible to quickly and reliably mount and remove the cassette.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIGS.
The figure is a side view showing the operating state, FIG. 5 is a sectional view taken along the line X-X in FIG. 1, and FIG.
The Y cross-sectional view and FIG. 7 are developed cross-sectional views of the cam groove. 1... Base, 3... Fixed bracket, 4... Storage case, 6... Pin, 7... Torsion spring, 8...
...Cam plate, 8a... Base end corner, 8b... Upper corner, 8c... Lower corner, 9... Pin, 10...
...Tension spring, 11...Cam groove, 11A...First
Guide part, 11B...Second guide part, 11C...
Third guide part, 13... cam pin, 14... compression spring, 15... cassette, A... note, B... first intermediate point, C... second intermediate point, D... end point, E...
...Locking point, F...step.

Claims (1)

[Scope of utility model registration request] In a control device that is used by attaching a cassette loaded with printed circuit boards to a cassette storage case,
A pair of left and right fixing brackets 3 facing each other is erected on the base 1 of the control device, and the fixing brackets 3
The storage case 4 is pivotably held by a pin 6 via a leg plate 5 provided on the lower surface of the storage case 4, and a torsion spring 7 is attached to the pin 6 to position the entrance side of the storage case 4 upward. Fit the cam plate 8, which has a similar triangular shape, to the entrance side of the storage case 4 from the pin 6 of the fixed bracket 3, and attach the cam plate 8 to its base end corner 8a.
is pivotably attached to the cam plate 8 by a pin 9, and the upper corner part 8b of the cam plate 8 is connected to the base part 1 by a spring 10. A first guide portion 11A reaching a first intermediate point near the corner 8b, and the first intermediate point B
to the second intermediate point C near the lower corner 8c.
The guide portion 11B and the starting point A from the second intermediate point C.
A loop-shaped cam groove 11 is formed with a third guide portion 11c extending to the third guide portion 11c, and a curved locking point E toward the pin 9 is formed in the middle of the second guide portion 11B of the cam groove 11. Third guide part 11 near A
The communication part between the first guide part 11A and the first guide part 11A forms a deep step on the side of the starting point A, and the cam plate 8 is attached to the bracket 12 provided on the lower surface of the storage case 4 and closer to the entrance of the storage case 4 than the leg plate 5. a cam pin 1 that is biased toward the side and engages with the cam groove 11;
3. A cassette mounting device characterized in that a cassette mounting device is provided.