JP2008117822A - Circuit board housing apparatus, and circuit board housing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a circuit board housing apparatus that is provided with a backplane to which a plurality of circuit boards are inserted and attached and slide cam plates provided on both side of the backplane in a way that they move according to rotary action of a cam linking with the rotary action of a lever, and wherein the backplane is moved apart from the circuit board when the slide cam plates move, so that the backplane itself can be removed without large force when the circuit board is to be replaced. <P>SOLUTION: The circuit board housing apparatus is provided with a backplane to which a plurality of circuit boards are inserted. Slide cam plates are provided on both sides of the backplane, and they move in the linear direction by the rotary action of a cam linking with the rotary action of a lever. When the slide cam plate moves, the backplane is moved away from the circuit board, permitting release or restoring of attachment state of the backplane to the circuit board. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a circuit board storage device and a circuit board storage method, and more particularly, to a circuit board storage box for a plurality of sheets having a backplane, and a circuit board storage device and a circuit board storage method related to a backplane removal method. About.

  As shown in FIG. 8, a circuit board storage box that is a circuit board storage device in the prior art includes a backplane 112 fixed inside the housing 101, and a plurality of circuit boards 110 are inserted into the backplane 112. In this configuration, the mechanical component or the front-side board unit 102 is connected to the front surface of the mounted circuit board 110.

In the circuit board storage box having such a configuration, when the circuit board 110 is replaced, the mechanical component or the front side board unit 102 is removed, and the desired circuit board 110 is removed from the back plane 112 for replacement.
Japanese Patent Laid-Open No. 10-135666 (2nd page, FIG. 3)

  However, in the circuit board storage box described in the prior art, when replacing the circuit board stored in the circuit board storage box, it is necessary to remove the mechanical component or the front side board unit, and the backplane The removed circuit board could not be replaced.

  Therefore, it is possible to replace the circuit board without removing the mechanical parts or the front side board unit, which has a problem with the conventional technology, and to replace the circuit board without using power, compressed air, etc. There is a problem that must be solved by a mechanism that can remove the backplane as possible.

  In order to solve the above problems, a circuit board storage device and a circuit board storage method of the present invention are configured as follows.

(1) The circuit board storage device is a circuit board storage device provided with a backplane for inserting a plurality of circuit boards, and the backplane has a cam rotation operation linked to a lever rotation operation. Slide cam plates that move in a linear direction are provided on both sides of the backplane, and when the slide cam plate moves, the backplane is moved away from the circuit board to release or restore the mounting state with the circuit board. It has a function to do.

(2) The circuit board storage device includes a cam, a rotation shaft provided at a central position of the cam, and a lever connected to the cam, and a detachable lever that is rotatable about the rotation shaft. A back panel having a plurality of circuit boards inserted therein, a back plane having cam follower shafts for moving the back panel itself on both side surfaces, and a rotational movement of the cam when engaged with the cam. A cam guide portion that converts linear motion to a slide cam plate that includes a cam follower bearing portion that includes a groove that moves the backplane in a vertical direction with respect to linear motion, and The cam of the detachable lever is engaged with the cam guide portion of the slide cam plate, and the cam follower shaft of the backplane is engaged with the cam follower bearing portion of the slide cam plate. When the cam plane is placed so as to be supported by the slide cam plate and the lever is rotated around the rotation axis of the detachable lever, the cam plane rotates in conjunction with the movement of the cam. The cam guide portion of the slide cam plate is moved in a linear direction, and the cam follower shaft engaged with the cam follower bearing portion is regulated in the vertical direction according to the movement, so that the backplane is also moved in the vertical direction. Move and detach from or insert into the circuit board.

(3) The circuit board storage method is a circuit board storage device including a backplane for inserting a plurality of circuit boards, and includes a slide cam plate that is moved by a cam rotation operation that is linked to a lever rotation operation. It is provided on both sides of the backplane, and when the slide cam plate moves, the backplane is moved away from the circuit board to release or restore the mounting state with the circuit board.

In the proposed circuit board storage device, a backplane on which a plurality of circuit boards are inserted and mounted is provided on both sides of the backplane with slide cam plates that are moved by a cam rotation operation linked to the lever rotation operation. Since the backplane is moved away from the circuit board when the slide cam plate is moved, the backplane itself can be removed without requiring a large force when the circuit board is replaced.
In addition, since at least two cam follower shafts for moving the backplane in the direction to remove the backplane are arranged on each of the left and right sides, it is possible to remove the cam follower shaft from the circuit board by applying a uniform force.
Furthermore, when the backplane is fitted to a plurality of circuit boards, the cam follower shaft of the backplane that engages with the cam follower bearing provided on the slide cam plate has a predetermined gap to prevent displacement. Thus, the fitting can be performed while absorbing the positional deviation between the circuit board and the backplane.

  Next, an embodiment of a circuit board housing apparatus capable of embodying the circuit board housing method according to the present invention will be described with reference to the drawings.

  As shown in FIGS. 1 and 2, the circuit board storage device of the present invention includes a back panel 11 (see FIG. 2) having a connector (not shown) for inserting a plurality of circuit boards 10 in an aligned state. A base 14 formed in a U-shape having a back plane 12 and a bearing 13 that is formed in a size that can accommodate the back plane 12 and that receives lever rotation shafts 28a and 28b at both ends; The slide cam plate 15 that is disposed on the both arms 14 and can be moved in a linear direction by the rotation operation of the attachment / detachment lever 16, and the attachment / detachment lever on the cam guide portion 21 provided at one end of the slide cam plate 15. 16 cam portions 27 are arranged, and the detachable lever 16 is formed by fitting the lever rotating shafts 28 a and 28 b to the bearing portion 13.

  The back plane 12 is formed in a quadrangular shape, and has two cam follower shafts 17 that move the back plane 12 away from the circuit board 10 at both ends on one side wall and two on the other side wall on the opposite side. It has become.

  The base 14 is provided with a slide cam plate mounting portion 18 for providing a step on both arms and slidably mounting the slide cam plate 15, and lever rotating shafts 28 a and 28 b on the base of each arm. The first slide cam support shaft 19a is formed so as to protrude outward at the left side of the upper portion of the slide cam plate mounting portion 18, and is also formed to protrude outward on the wall surface protruding upward at the center position. The second slide cam support shaft 19b is provided with a third slide cam support shaft 19c projecting outward at a position on the right side.

  The detachable lever 16 includes cam portions 27a and 27b formed in a fan shape at both end portions on the base side, and includes lever rotating shafts 28a and 28b that protrude outwardly at the center positions of the cam portions 27a and 27b. The cam portions 27a and 27b are connected to the cam portions 27a and 27b so that the cam portions 27a and 27b are pivoted about the lever rotation shafts 28a and 28b. ing. The attachment / detachment operation portion 29a is connected to the attachment / detachment operation portion 29b connected to the other cam portion 27b by a connecting portion 30. As a result, when the detachable lever 16 is operated, a uniform force can be applied to the left and right cam portions 27a and 27b, and the rotating operation can be performed by this action.

  The slide cam plate 15 is formed of an elongated plate-like member, and is provided with a cam guide portion 21 that engages with the cam portion 27a (27b) at one end thereof, and is located adjacent to the cam guide portion 21 from above. A first cam follower bearing portion 22a that is formed by notching vertically at the back of the notch and engaging with the cam follower shaft 17, is also cut vertically from the top to a position on one end side away from the cam guide portion 21. A second cam follower bearing portion 22b that engages with the cam follower shaft 17 and is formed by being cut out in an oblique direction at the back, and further formed in a lower shape of the first cam follower bearing portion 22a. 1 slide bearing part 23a, 2nd cam follower bearing part 22 formed by drawing out in oval shape provided between 1st cam follower bearing part 22a and 2nd cam follower bearing part 22b Furthermore, the third slide bearing portion 23c formed by pulling out in an oval shape provided at the lower end of the second cam follower bearing portion 22b, which is an end portion on the opposite side of the cam guide portion 21, is provided. Yes.

  The cam guide portion 21 is formed in such a size that the cam portion 27 of the detachable lever 16 having a predetermined interval can be engaged with each other, and the cam guide portion 21 is formed in a generally C-shaped shape as a whole. It is the structure provided with the inclination parts 25 and 26 which narrow toward it. The cam portion 27 hits the outer inclined portion 25 to move the slide cam plate 15 in the linear direction outward, and the cam portion 27 hits the inner inclined portion 26 to move the slide cam plate 15 in the linear direction. Let

  By assembling such components, the circuit board storage device of the present invention is realized. First, the lever rotating shaft 28 of the detachable lever 16 is fitted to the bearing portion 13 and assembled to the base 14, and at the same time, the cam guide portion 21 is placed on the slide cam plate placement portion 18 of the base 14. 27b), the first slide cam support shaft 19a is connected to the first slide bearing portion 23a, the second slide cam support shaft 19b is connected to the second slide bearing portion 23b, and the third slide cam support shaft 19c is connected to the third slide bearing support shaft 19c. The slide cam plate 15 is mounted on the slide bearing portion 23c. Finally, the cam follower shaft 17 of the backplane 12 is assembled by engaging the first and second cam follower bearing portions 22a and 22b of the slide cam plate 15.

  This is completed by inserting a plurality of circuit boards into the circuit board storage device thus assembled.

  The operation of the circuit board storage device thus completed will be described.

  As shown in FIG. 3, the detachable lever 16 is currently housed, the cam follower shaft 17 of the backplane 12 is accommodated in the first and second cam follower bearing portions 22a and 22b of the slide cam plate 15, and the circuit board 10 is attached to the backplane 12. Suppose that it is in the inserted state.

In this state, in order to replace the circuit board 10, the detachable lever 16 is rotated 90 degrees from the horizontal position in the direction of the arrow A around the bearing portion 13 as a fulcrum and connected to the detachable lever 16. The slide cam plate 15 is moved in the linear direction indicated by the arrow.
Then, as shown in FIG. 4, the movement of the slide cam plate 15 causes the first to third slide cam support shafts 19a, 19b, 19c fitted in the first to third slide bearing portions 23a, 23b, 23c. At this time, the backplane 12 and the cam follower shaft 17 fixed to the backplane 12 are separated from the circuit board 10 along the first and second cam follower bearing portions 22a and 22b which are grooves in the slide cam plate 15. The backplane 12 is removed from the circuit board 10 by moving in the direction.

  Next, to return the backplane 12 after replacing the circuit board, the detachable lever 16 is rotated back from the position shown in FIG. 4 to the position shown in FIG. 3, when the detachable lever 16 is in the raised state, the cam follower shaft 17 fixed to the backplane 12 is connected to the first and second cam follower bearing portions 22a and 22b on the slide cam plate 15. Match. The first and second cam follower bearing portions 22a and 22b, which are the grooves, are provided with a minute gap with respect to the cam follower shaft 17, and absorb the positional deviation of the circuit board 10 and the backplane 12 and the positional deviation of the connector. It also serves as a fine adjustment mechanism.

  Then, the detachable lever 16 is moved in the direction opposite to the arrow A, and moved in the direction opposite to that when the slide cam plate 15 is removed. At this time, the cam follower shaft 17 of the backplane 12 set on the first and second cam follower bearing portions 22a and 22b of the slide cam plate 15 moves in a direction to press the backplane 12 against the circuit board 10 and is mounted. Insertion is completed almost simultaneously with all of the above.

  As described above, the connector on the circuit board 10 has a large number of pins and requires a large force for fitting. In the example of the present invention, a force of about 100 kg is required when the backplane 12 is removed, and a force of 400 kg is required when the backplane 12 is attached. By using the present invention, this operation can be safely performed manually without relying on power such as an air pressure source and electric power.

  In addition, by attaching the attachment / detachment operation portions 29a and 29b of the attachment / detachment lever 16 to the left and right by the connecting portion 30 and uniformly arranging four or more cam follower shafts 17 with respect to the backplane 12, The backplane 12 can be fitted uniformly. The connector used in this portion has a large number of pins, and if the front / rear / right / left forces are uneven, the connector is likely to be damaged. Furthermore, when the backplane 12 is fitted to a plurality of circuit boards 10, the positions of the backplanes 12 are often shifted, and the mechanism of the present invention has a fine adjustment function to absorb this shift. Thus, damage to the connector can be prevented.

  5 to 7 are semiconductor tester heads (semiconductor tester heads) provided with a plurality (two in the embodiment) of circuit board storage devices of the present invention, and the present invention relating to a detachable lever and a slide cam plate. Since the mechanism of the essential part is the same as that described above, it is omitted, and the function of adding the function of drawing the circuit board forward after the backplane is detached from the circuit board is added.

  As shown in FIG. 5, the slide cam plate 15 is moved downward in the drawing by rotating the detachable lever 16 from the downward direction shown in the drawing upward by about 90 degrees about the lever rotation shaft. The backplane 12 moves away from the circuit board 10 and moves away from the circuit board 10. At this time, although not shown in the drawing, the circuit board is locked by a locking member inside and can hold the same position even if the backplane 12 is removed.

  Then, as shown in FIG. 6, the detached back plane 12 is pulled out toward the front in the figure and installed like a table.

Next, as shown in FIG. 7, the circuit board 10 to be replaced is pulled out and placed on the upper part of the backplane 12 drawn out in the front direction, and the replacement is performed.
In this way, the replacement work can be performed safely by one person and without requiring other power.
After the circuit board 10 is replaced, the circuit board 10 is stored in the replaced position, the backplane 12 is returned to the original position, and the detachable lever 16 is rotated so that the entire circuit board 10 is inserted into the backplane 12. This completes the replacement of the series of circuit boards 10.

  A slide cam plate is installed on both sides of the backplane to move the backplane to which multiple circuit boards are inserted and mounted by the cam pivoting operation linked to the lever pivoting operation. By moving the plane away from the circuit board, it is possible to provide a circuit board storage device that can remove the backplane itself without requiring a large force when replacing the circuit board.

It is the perspective view which showed schematically the circuit board storage apparatus of this invention. It is the perspective view which decomposed | disassembled and showed the mechanism part used as the principal of this invention. It is explanatory drawing which showed operation | movement of the mechanism used as the key of this invention. It is explanatory drawing which showed operation | movement of the mechanism used as the key of this invention. It is a perspective view which shows a mode that it diverted to the semiconductor test machine head (semiconductor tester head) provided with two circuit board storage apparatuses of this invention. It is a perspective view which shows a mode that it diverted to the semiconductor testing machine head (semiconductor tester head) provided with two circuit board storage apparatuses of this invention, and shows the state which removed the back plane in order to take out a circuit board. is there. It is a perspective view which shows a mode that it diverted to the semiconductor testing machine head (semiconductor tester head) provided with two circuit board storage apparatuses of this invention, and shows a mode that the circuit board was pulled out on the backplane in order to take out a circuit board It is a thing. It is explanatory drawing which shows the circuit board storage apparatus in a prior art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Circuit board 11 Back panel 12 Back plane 13 Bearing part 14 Base 15 Slide cam board 16 Removable lever 17 Cam follower shaft 18 Slide cam board mounting part 19a 1st slide cam support shaft 19b 2nd slide cam support shaft 19c 3rd slide Cam support shaft 21 Cam guide portion 22a First cam follower bearing portion 22b Second cam follower bearing portion 23a First slide bearing portion 23b Second slide bearing portion 23c Third slide bearing portion 25 Inclined portion 26 Inclined portion 27a Cam portion 27b Cam portion 28a Lever rotation shaft 28b Lever rotation shaft 29a Attachment / detachment operation portion 29b Attachment / detachment operation portion 30 Connection portion.

Claims (3)

A circuit board storage device including a backplane for inserting a plurality of circuit boards,
Provided on both sides of the backplane are slide cam plates that move in a linear direction by a cam rotation operation that is linked to a lever rotation operation,
A circuit board storage device comprising a function of releasing or restoring the mounting state of the circuit board by moving the backplane away from the circuit board when the slide cam plate moves. A cam, a rotation shaft provided at a central position of the cam, and a lever connected to the cam, and a detachable lever that is rotatable about the rotation shaft;
A backplane having a back panel on which a plurality of circuit boards are inserted and mounted, and a cam follower shaft for moving the back panel itself on both side surfaces;
A cam follower bearing comprising a cam guide portion that engages with the cam and converts the cam movement into a linear movement with respect to the cam movement, and a groove that moves the backplane in a vertical direction with respect to the linear movement. A slide cam plate provided with a portion,
With
The cam of the detachable lever is engaged with the cam guide portion of the slide cam plate, the cam follower shaft of the backplane is engaged with the cam follower bearing portion of the slide cam plate, and the backplane is moved to the slide cam. Place it to support it with a plate,
When the lever is rotated about the rotation axis of the detachable lever, the cam guide portion of the slide cam plate is moved in a linear direction in accordance with the movement of the cam that rotates in conjunction with the lever. In response to this movement, the cam follower shaft engaged with the cam follower bearing portion is regulated in the vertical direction, so that the back plane also moves in the vertical direction and is detached from or inserted into the circuit board. A circuit board storage device. A circuit board storage device including a backplane for inserting a plurality of circuit boards,
Provided on both sides of the backplane are slide cam plates that move by the cam pivoting movement in conjunction with the lever pivoting movement,
A circuit board storage method, wherein when the slide cam plate moves, the backplane is moved away from the circuit board to release or restore the mounting state with the circuit board.

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