JP2959568B1 - Board insertion / extraction device - Google Patents

Abstract

An object of the present invention is to obtain a board insertion / extraction device having a function of ensuring a sufficient length of a lever when used and preventing the board from coming off. The board insertion / extraction device includes a board insertion / extraction tool and a protrusion.
3 The board insertion / extraction tool 21 is composed of a lever 22 and a main body 23 in which the slide portion 22A is slidably disposed on the cylindrical portion 23A and is rotatably attached to the printed board 31 via a center hole 28. When mounting the printed circuit board 31, the sharp jaw 23BA is hooked on the protruding piece 33 arranged on the immobile member, the slide portion 22A is pulled up to the upper limit position, and the insertion / extraction action portion 22B is rotated in the direction of the arrow 52. To remove the printed circuit board 31, it is rotated in the direction of the opposite arrow 53. If the slide portion 22A is pressed down after the printed board 31 is mounted, the size is reduced, and the lower portion of the slide portion 22A contacts the protruding piece 33 to prevent the printed board 31 from coming off.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a board inserting / extracting apparatus used for inserting / extracting a board such as a printed board.

[0002]

2. Description of the Related Art A board insertion / extraction device may be conventionally used for attaching a board composed of a printed board or a memory element to a connector arranged on a board such as a housing or a motherboard, or removing the attached board. . The board insertion / extraction device is a device used in combination with a board insertion / extraction tool arranged on the side where the board is attached and a member arranged on the side where the board is attached, and is used for insertion / extraction of the board.
Some of them also have a function of preventing the inserted board from coming off accidentally. In a substrate insertion / extraction device, it is usual that a substrate is inserted / extracted by rotating a lever provided in the device.

Recently, miniaturization of electronic parts or electronic devices has been remarkably progressing, and there has been a demand for miniaturization of a board insertion / extraction tool for inserting / extracting a board. On the other hand, in order to mount the board to the connector with high reliability, the force required for inserting and removing the board is required to be gradually increased. In such a situation, the length of the lever in the board insertion / extraction tool is increased when the lever is used, and the lever is made compact when not in use.

FIG. 10 shows a portion of a board insertion / extraction tool of a board insertion / extraction device disclosed in Japanese Patent Application Laid-Open No. 6-29678. As shown in FIG. 1A, the board insertion / extraction tool 11 includes a main body 13 that is rotatable about a pivot point 12. The main body 13 has a slot 14 in which a pin 15 is provided. A lever 17 penetrating and attached to a flange (not shown) is slidably disposed together with the pin 15.

[0005] The main body 13 is rotatably attached to an end portion of a substrate (not shown) at a pivot 12 such as a pin. The main body 13 is provided with a jaw 18, which is hooked on an end of a chef (not shown in the figure) to rotate the main body 13 to attach a board to the chef,
The board is removed from the chef.

FIG. 11 shows the board insertion / extraction tool 11 shown in FIG.
5 shows a state in which the lever 17 of FIG. Arrow 19 with lever 17 pulled out
By applying a force in the direction and rotating the main body 13 about the shaft fulcrum 12, insertion and removal of the substrate can be performed with less force.

[0007]

However, in the board insertion / extraction device disclosed in Japanese Patent Application Laid-Open No. Hei 6-29678, when the lever 17 is rotated with the board mounted, for example, the main body 15 always rotates. The board is removed from the chef. That is, there is no lock mechanism for holding the mounted state in the board insertion / extraction device,
If a force is applied to the lever 17 for any reason in a state where the lever 17 is pulled out, the substrate is inadvertently removed.

On the other hand, Japanese Patent Application Laid-Open No. Hei 10-51165 proposes a board insertion / extraction device having a function of preventing a printed board from coming off. In this board insertion / extraction device, a shaft for rotating the lever is housed in one of the two arc portions connected and arranged in a shape of “8”, and is also movably arranged in the other arc portion. . By rotating the lever while the shaft is housed in one of the arcs, it is possible to insert and remove the substrate, and in the state in which the shaft is moved to the other arc, a lock state in which such rotation cannot be performed, The board is not accidentally removed.

As described above, in the technique disclosed in Japanese Patent Application Laid-Open No. 10-51165, the lever can be locked. However, because of this function, the length of the lever portion of the board insertion / extraction device cannot be increased, and handling during insertion / extraction is worse than that of the substrate insertion / extraction device shown in FIGS. There is a problem that the size of the tool itself becomes large.

As described above, conventionally, it is impossible to achieve both the miniaturization of the board insertion / extraction tool constituting the board insertion / extraction device and the function of preventing the board from coming off, and after mounting the printed circuit board to prevent the board from coming off. In general, a method of fixing with screws to a housing or the like has been adopted. However,
Fixing the housing by screwing in this way requires extra work steps and has a problem that workability deteriorates.

SUMMARY OF THE INVENTION An object of the present invention is to provide a board inserting / extracting apparatus having a function of securing a sufficient length of a lever when used and preventing the board from coming off.

[0012]

According to the first aspect of the present invention, there are provided a slide part having a rod-like shape for applying a rotational force when inserting and removing a substrate, and a slide part having a predetermined direction. A slide part holding means that holds the slide part in a reciprocating manner and has a length in this direction shorter than the length in the predetermined direction of the slide part, and is provided on a member integrally arranged with the slide part holding means, A rotation support for rotatably holding a side of the slide portion holding means, the end of which is protrudable, close to an end of the slide portion holding means so as to be rotatable with respect to a substrate to be inserted and withdrawn, and an integral part of the slide portion holding means; A main body portion having a facing portion which is a member arranged in a manner and which slides and protrudes from the sliding portion holding means on the side closer to the rotation support when the sliding means protrudes from the sliding portion holding device at a predetermined interval.
(C) a member having a fixed positional relationship with the object to be inserted / extracted from / to which the substrate is inserted / extracted, wherein the substrate is inserted into the object to be inserted / extracted, and a slide portion protruding from the slide portion holding means and an opposing portion; The board insertion / extraction device is provided with an immovable member arranged to be sandwiched.

That is, in the first aspect of the present invention, the slide portion is reciprocally held by the slide portion holding means, so that in a predetermined case, the slide portion is pulled out from the slide portion holding means to increase the length of the lever and In other cases, the size is reduced by storing the case.
In addition, by making the slide portion holding means shorter than the length of the slide portion, the slide portion is protruded from the slide portion holding device in a direction opposite to that when the lever is used when the lever is not used. In this case, the components are arranged so as to sandwich the immovable member between them, thereby preventing the board from coming off when the mounting of the board is completed.

According to the second aspect of the present invention, it is preferable that a plurality of concave portions are formed in the sliding portion in the moving direction, and the convex portion which selectively fits into these concave portions is formed in the sliding portion holding means. Features. Thus, the slide portion can be fixed to a position used as a lever or a position used for locking.

According to the third aspect of the present invention, the rotation support member has a hole provided on a member integrally provided with the slide portion holding means, and the member is rotatable to the substrate via the hole. And a pin to be held at the same time. Screws may be used instead of pins. Also,
In principle, a hole may be provided on the substrate side to support the rotating support rotatably from the substrate side.

According to the fourth aspect of the present invention, the slide portion has a polygonal cross section, and the slide portion holding means and the main body portion are a single plate-shaped member, and a hole having a polygonal cross section penetrates the slide portion. This feature is characterized in that the portions forming the slide portion holding means. By making the cross section into a polygon in this way, unlike a circular case, it is possible to prevent the slide part from rotating carelessly about the axis.

According to the fifth aspect of the present invention, an insertion / removal action portion bent at a predetermined angle with respect to the longitudinal direction of the slide portion is integrally attached to an end of the slide portion on the side remote from the rotation support. The side close to the substrate is characterized in that the rotation is regulated by contacting the end of the substrate at a rotational position where the slide portion is substantially vertical. In this type of board insertion / extraction device, the board can be inserted with a relatively small force by using the lever. Therefore, if the lever is unnecessarily rotated, the connector may be inserted too much and cause a failure. In view of this, it is possible to prevent a predetermined portion from hitting the printed circuit board itself and rotating it further after rotating to a certain rotational position. Of course, you are free to eliminate such measures.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to embodiments.

FIG. 1 shows a cross-sectional structure of a substrate insertion / extraction tool in a state where a substrate insertion / extraction device according to an embodiment of the present invention is disassembled. The board insertion / extraction tool 21 includes a lever 22 and a main body 23 having a cylindrical portion 23A into which a slide portion 22A of the lever 22 is inserted. On the right side in the figure of the slide portion 22A of the lever,
Two hemispherical recesses 24, 25 at a given distance
Is provided. A hemispherical convex portion 26 that selectively enters one of the two concave portions 24 and 25 is disposed inside the cylindrical portion 23A. A central hole 28 is formed in a flat plate portion 23B other than the cylindrical portion 23A of the main body 23, and the main body 23 rotates around an end of a printed circuit board (not shown) around the central hole 28 as a rotation center.

A central hole 28 is formed in the flat plate portion 23B of the main body 23.
A jaw 23BA having a slightly pointed tip is formed in the vicinity of, and its tip portion 29 is to be an action point for a projecting piece of a casing not shown in this figure. The insertion / removal action portion 22B located above the slide portion 22A of the lever 22 has two recesses 24, 25 of the slide portion 22A.
The protrusion 22BA is formed on the side where is formed. The projecting portion 22BA is connected to the lever sliding portion 22A.
When the slide part 22A is inserted into the cylindrical part 23A of the main body,
Acts as a stopper for preventing the cartridge from falling off, and when the insertion / extraction section 22B of the lever is rotated clockwise, the end of the printed circuit board (not shown) to which the main body 23 is attached. The levers 22 are in contact with each other, whereby the rotation angle of the lever 22 is restricted.

FIG. 2 shows a state in which the printed board to which the board inserting / extracting device of the present embodiment is attached is locked by being attached to a housing. A male connector, which is inserted into a female connector, which is also disposed on the inner side (not shown) of the housing 32 (shown by a broken line), is disposed at an end of the printed circuit board 31 on the rear side (not shown). In the lower part on the near side of the printed circuit board 31, the board insertion / extraction tool 21 is rotatably held by a pin 41 via a center hole 28 on the side of the surface shown in the figure. On the floor of the housing 32 where the board insertion / extraction tool 21 is arranged, a protruding piece 33 is vertically provided.
Reference numeral 1 denotes a state in which this is sandwiched between the distal end portion 29 and a portion opposed to the slide portion 22A.

FIG. 3 shows the relationship between the board insertion / extraction tool and the protruding piece constituting the board insertion / extraction device in a state where the protruding piece is cut along a plane parallel to the flat plate portion in a state where the printed circuit board is locked. . When the printed circuit board 31 is locked as described above, the protruding portion 22BA is in contact with the upper surface of the flat plate portion 23B of the main body, and the slide portion 22A of the lever is lowered to the maximum. Further, the board insertion / extraction tool 21 is rotated to a position where an end surface of the slide portion 22A parallel to the longitudinal direction is substantially parallel to a vertical surface of the projecting piece 33. Also,
In this locked state, the projection 26 is fitted in the upper recess 24 shown in FIG.

FIG. 4 shows a section taken along the line AA in FIG. In this embodiment, the cylindrical portion 23A and the flat plate portion 2
3B is formed integrally, and a hole having a substantially hexagonal cross section is opened on the side of the cylindrical portion 23A.
A is inserted. Also in this figure, the concave 2
4 shows a state in which the convex portions 26 are fitted.

Next, the printed circuit board 31 is
FIG.
This will be described with reference to FIG.

FIG. 5 shows a state immediately before the printed circuit board is inserted into the housing. The operator moves the printed circuit board 31 in the direction of the arrow 51 (the depth direction of the housing) along a guide member (not shown) provided in the housing (not shown). With the tip of the male connector at the tip of the printed circuit board 31 abutting against the female connector (not shown) of the housing, the operator pulls out the lever insertion / removal action portion 22B of the lever pulled out from the cylindrical portion 23A of the board insertion / extraction tool 21. And rotate it in the direction of arrow 52 (clockwise). In this state, the convex portion 26 of the slide portion 22A of the lever is fitted in the lower concave portion 25 shown in FIG.

When the insertion / extraction portion 22B is rotated, first, the jaw 23BA of the flat plate portion of the main body 23 is caught by a protruding piece 33 vertically provided on the floor of the housing as shown in FIG. It comes into contact with the piece 33. The printed circuit board 31
There is some error in the mounting position of the board insertion / extraction tool 21 with respect to, and when the printed circuit board 31 is moved in the direction of the arrow 51, the protruding piece 33 comes into contact with the tip of the board insertion / extraction tool 21 in the moving direction and moves in this direction. There is a possibility that the movement of the vehicle may be hindered. In such a case, the printed circuit board 3
If the side on which the first board insertion / extraction tool 21 is attached is slightly lifted once, the jaw 23BA of the flat plate portion can get over the projecting piece 33 and the tip end 29 can be brought into contact with the projecting piece 33. it can.

FIG. 6 shows a state in which the lever is fully rotated clockwise from the state shown in FIG.
The protrusion 22BA of the lever is in contact with the end of the printed circuit board 31, and the slide portion 22A of the lever is kept substantially vertical in this state. Board insertion / extraction tool 2 up to this rotation position
By rotating 1 about the center hole 28,
The tip portion 29 of the main body moves the printed circuit board 31 in the direction of the arrow 51 with a relatively large force, and the connection of the connector is performed. When the slide portion 22A of the lever is pushed down in the direction of arrow 61 as shown in FIG. 7 in this rotation stopped state, the state shown by the broken line is obtained, and the protruding piece 33 is sandwiched between the slide portion 22A of the lever and the jaw 23BA of the main body. As a result, the rotation of the lever 22 is prevented. That is, disconnection of the connector is prevented.

To remove the printed circuit board 31 from the connector of the housing, first, as shown in FIG. 7, the slide portion 22A of the lever is lifted in the direction of arrow 62, and the lower concave portion 25 shown in FIG. 26. Then, the lever 22 is rotated in the direction of arrow 53 opposite to the direction of arrow 52. Then, as shown in FIG. 5, the corner 23AA of the cylindrical portion 23A of the main body comes into contact with the protruding piece 33, and this becomes the point of action, and the printed board 33 moves in the direction of the arrow 54, and the printed board 31 is removed. Will be

The substrate insertion / extraction of the present embodiment as described above
In the installation, the slide portion 22A of the board insertion / extraction tool 21 is a cylindrical portion.
Since it is slidably arranged inside 23A, insertion and removal of the board
Can be reduced in size when not performing
it can. This will be described. FIG. 6 uses the board insertion / extraction tool 21
Showing the state where the printed circuit board 31 is inserted and removed
At this time, the slide portion 22A secures the insertion / extraction force.
Is raised to the upper limit position. At this time
The height of the board insertion / extraction tool 21 is L₁And In contrast, FIG.
FIG. 4 shows a state in which the printed circuit board 31 is locked.
However, in this state, there is no need to use the lever 22.
Thus, the slide portion 22A is in a depressed state. This
In this case, the height of the board insertion / extraction tool 21 is equal to the length of the lever 22.
New height L _TwoBecomes Moreover, it is pushed down and protrudes downward
The sliding portion 22A prevents the printed board 31 from coming off.
It has also helped to stop.

Modification

FIG. 8 shows a sectional structure of a board insertion / extraction tool of a board insertion / extraction device according to a first modification of the present invention. The cutting positions in this modification correspond to FIG. As described above, in this modification, the main body 72 of the board insertion / extraction tool 71 is formed by bending a flat plate into a “6” shape, and the slide portion 74 of the lever is loosely fitted in the cavity 73 formed thereby. It has become. Further, in this modification, the recesses 24 and 25 as shown in FIG. 1 are not formed in the slide portion 74 of the lever, and the projection 26 shown in FIG. For this reason, in the board insertion / extraction tool 71 of the board insertion / extraction device of this modification, the sliding portion 74
Is always lowered to the lower limit position, and the protruding portion 22BA shown in FIG.

The operator places the slide portion 74 in the hollow portion 73 of the apparatus main body only when inserting or removing a board such as a printed board.
Then, the lever may be rotated in a predetermined direction in this state.

In this modification, not only the manufacturing cost of the board insertion / extraction tool 71 can be reduced, but also the slide portion 74 automatically descends while the board is inserted into the housing or the like. Although it is difficult, there is an advantage that measures can be taken to automatically prevent the printed circuit board from coming off.

FIG. 9 shows a configuration of a board insertion / extraction device side of a board insertion / extraction tool according to a second modification of the present invention.
In this modification, the substrate insertion / extraction tool 81 has a slit 83 formed in the length direction of the slide portion 82A of the lever 82. A slit 8 is formed in a flat main body 85 having a center hole 84 formed therein.
3, two upper and lower screw holes 86 and 87 are threaded. These screw holes 86 and 87 are provided with slide portions 82A.
By slightly loosening the screws 88 and 89 through the board, the board insertion / extraction tool 81 having the same function as that of the embodiment can be obtained.

The board insertion / extraction tool 81 of this modification example
With the slide portion 82A of the lever pressed down,
By tightly tightening 8, 89, the slide portion 82A can be fixed so as not to slide in the slit 83. Therefore, it is possible to completely prevent a board such as a printed board from coming off. As shown in the second modification, the slide portion 82A does not necessarily need to be inserted into a cylindrical member, but may be any member that can be slidably supported.

In the embodiments and the modifications, the board insertion / extraction device is rotatably attached to the lower portion of the board.
You may make it attach to the upper part so that rotation is possible. In this case, the protrusions such as the protruding pieces constituting the board insertion / extraction device described in the embodiment are arranged on the upper portion of the housing or the like on the board mounting side. In the embodiment, the protrusion 22BA of the lever is used.
Is bent toward the printed circuit board 31 so as to be in contact with the end face of the printed circuit board 31. However, such a structure is not adopted. For example, a convex portion is provided at a predetermined position of the flat plate portion 23B on the printed circuit board 31 side, and the rotation is similarly performed. The angle may be regulated.

[0038]

As described above, claims 1 to 5 are provided.
According to the invention described above, the length of the slide portion holding means is made shorter than the length of the slide portion, and when the slide portion is pulled out in a predetermined direction, the function of extending the lever is achieved. In this case, the locking is performed using this, so that both the purpose of reducing the size of the device and adding the locking function can be achieved with fewer components.

According to the fifth aspect of the present invention, an insertion / removal action portion which is bent at a predetermined angle with respect to the longitudinal direction of the slide portion is integrally attached to an end of the slide portion on the side remote from the turning support. The side close to the board is in a rotation position where the slide part is almost vertical, so that it contacts the end of the board and the rotation is regulated, so even those who are not skilled in work can safely mount the board. Insertion and removal can be performed.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating a cross-sectional structure of a substrate insertion / extraction device of an embodiment of the present invention in a state where a substrate insertion / extraction tool side is disassembled.

FIG. 2 is a perspective view showing a state in which a printed board to which a board insertion / extraction tool of the board insertion / extraction device of the present embodiment is attached is locked by being attached to a housing.

FIG. 3 is a partial cross-sectional view illustrating a relationship between a board insertion / removal tool and a protruding piece in a state where the printed circuit board is locked in this embodiment, in a state where only the protruding piece is cut along a plane parallel to a flat plate portion.

FIG. 4 is a cross-sectional view illustrating a cross section in the AA direction in FIG. 3;

FIG. 5 is a partial cross-sectional view illustrating a relationship between a board insertion / extraction tool and a protruding piece at a rotation angle immediately before a printed board is inserted into a housing in the present embodiment.

FIG. 6 is a partial cross-sectional view showing a state in which a printed board is moved to the maximum extent in a housing direction and a lever is raised in the present embodiment.

FIG. 7 is a partial cross-sectional view showing a state in which a lever is moved up and down at a rotation position of the board insertion / extraction tool shown in FIG.

FIG. 8 is a perspective view of an A of a board insertion / extraction tool according to a first modification of the present invention.
It is sectional drawing showing the cross section of the -A direction.

FIG. 9 is a plan view illustrating a configuration of a board insertion / extraction tool according to a second modification of the present invention.

FIG. 10 is a side view showing a state in which a lever is housed in a main body side in a conventional board insertion / extraction device.

11 is a side view showing a state in which the lever is pulled out by the board insertion / extraction device shown in FIG.

[Explanation of symbols]

 21, 71, 81 Board insertion / extraction tool 22, 82 Lever 22A, 74 Slide portion 22B Insertion / extraction portion 22BA Projection portion 23 Main body 23A Tube portion 23B Flat plate portion 23BA Jaw 24, 25 Concave portion 26 Convex portion 28, 84 Center hole 29 Tip portion 31 Printed circuit board 33 Protrusion piece 41 Pin 52, 53 Arrow 72, 85 Body part 73 Cavity part 83 Slit 88, 89 Screw

Claims (5)

(57) [Claims] 1. A slide part having a rod-like shape for applying a rotational force when inserting and removing a substrate, and a slide part for reciprocatingly holding the slide part in a predetermined direction and a length of the slide part in the predetermined direction. A sliding portion holding means having a shorter length in this direction than that provided on a member integrally arranged with the sliding portion holding means,
A rotating support for rotatably holding a side close to an end of the slide portion holding means in which an end of the slide portion is freely protrudable with respect to the substrate to be inserted and withdrawn, and the slide portion holding; When the slide means is protruded from the slide part holding means on the side close to the pivot support, a member arranged integrally with the means and an opposing part facing at a predetermined distance from the slide part holding means. A main body portion provided with a slide portion, which is a member having a fixed positional relationship with an insertion / extraction object to be inserted / extracted with the substrate, and a slide portion protruding from the slide portion holding means in a state where the substrate is inserted into the insertion / extraction object. A board inserting / extracting device, comprising: a stationary member disposed so as to be sandwiched between the facing portion and the facing portion. 2. The slide part has a plurality of recesses formed in the direction of movement thereof, and the slide part holding means has protrusions which are selectively fitted into these recesses. Item 2. The substrate insertion / extraction device according to Item 1. 3. The rotation support device has a hole provided on a member integrally arranged with the slide portion holding means,
2. The board insertion / extraction device according to claim 1, further comprising a pin for rotatably holding the member to the board via the hole. 4. The slide section has a polygonal cross section, and the slide section holding means and the main body are a single flat plate-shaped member, and the section where the polygonal hole penetrates. 2. The board insertion / extraction device according to claim 1, wherein the device comprises a slide portion holding means. 5. An insertion / removal action portion which is bent at a predetermined angle with respect to the longitudinal direction of the slide portion is integrally attached to an end of the slide portion on a side remote from the rotation support member, and is attached to a substrate of the slide portion. 2. The substrate insertion / extraction device according to claim 1, wherein the near side contacts the end of the substrate at a rotation position where the slide portion is substantially vertical and rotation is restricted.