JPH02181998A - Printed board locking mechanism - Google Patents

Abstract

PURPOSE:To eliminate a special operation for locking and to avoid the inadvertent forgetting of locking by locking a removable lever by a locking member in a state of engaging the part of a shelf and locking a printed board with the shelf. CONSTITUTION:When a printed board 1 is inserted into a shelf 6 and upper and lower removable levers 4, 5 are respectively rotated in directions C1, D1, a through hole 10 is engaged with the horizontal arm 18 of a locking member 14 by the rotation of the removable lever 4. An actuating arm 9 pushes the face 23 of this side of the groove 22 of a shelf 2, the printed board 1 is strongly energized in a direction of an arrow A by the principle of a leverage to be connected with a connector 3, and the printed board 1 is completely contained in the shelf 6. The connecting part 20 of a tongue piece 19 is engaged with a step 13, the removable lever 5 is limited in the rotation of a direction of an arrow D2 to be locked at that position, and the actuating arm 9 of the locked lever 5 abuts against the face 23.

Description

[Detailed Description of the Invention] (Summary) Regarding a mechanism for locking printed circuit boards in a state housed in a shelf, the object is to enable automatic locking upon completion of a printed board storage operation f'l. At both ends of the front H of the printed circuit board inserted and housed in the shelf,
An insertion/extraction lever is provided which is rotated at the final stage of the application and at the initial stage of the application, and locks a part of the cylinder and urges the printed circuit board in the insertion direction and in the direction of the corporation. A mounting for locking a printed circuit board in a stored state in a shelf, the insert 1 being mounted on the printed circuit board itself.
1, 1 is provided with a locking member that engages the insertion/extraction lever rotated to the final position, and the insertion/extraction lever is locked by the locking member while retaining a part of the shelf, and the puddings 1 to 1 It has a structure in which a 1° locking metal 4 is screwed and fixed so that the 1tH is locked to the shelf.

[Industrial application field]

The present invention relates to a mechanism for locking printed circuit boards inserted into a shelf.

In recent years, with the miniaturization of devices, the printed circuit boards inserted into the shelf are not limited to conventional LS [and ICs], but are also equipped with media such as disks, hard disks, etc. I'm getting excited as if I'm being treated like that.

The weight of such a pudding 1 board increases and the shelf l\\
If you rely only on the holding force at the connecting part of the connector to maintain the housed state, there is a risk that the printed circuit board will come out of the shelf due to vibration during transportation, and it may be difficult to lock the printed circuit board. It becomes necessary.

[Conventional technology] Conventionally, after a printed circuit board is inserted into a shelf and housed, the printed circuit board falls out on the curved surface of the shelf. [Problem that the invention aims to solve]

With this configuration, locking requires work such as screwing the metal fittings after housing the printed circuit board, resulting in poor operability.

Also, it is necessary to allow some space between the metal fittings and the front edge of the printed circuit board, and the printed circuit board (although it is suspended, there is some movement in the direction of the board).

It is an object of the present invention to provide a print storage system with g<60 that can be automatically locked upon completion of the printed circuit board storage operation.

[Means to solve problems]

In the present invention, both ends of the front edge of a printed circuit board inserted and housed in a shelf are rotated at the final stage of insertion and at the initial stage of removal, and a part of the shelf is locked. A device is provided for cocking the printed circuit board, which is equipped with an inserting lever that biases the printed circuit board in the insertion direction and the removal direction, into the storage state in the shelf. Final position 16 in the insertion part
A locking member is provided, and the i+fi f/u lever is locked by the locking member with a part of the cylinder locked, and the The printed circuit board is configured to be locked to the shelf.

[Effect]

Since the insertion/extraction lever is locked by the locking member, the printed circuit board is automatically locked to the shelf when the operation of storing the printed circuit board in the shelf is completed.

The locking member is provided not on the shell but on the printed circuit board itself, and the locking part is not affected by assembly errors of the shelf.

〔Example〕

FIG. 4 shows the relationship between the printed circuit board 1 and the shelf.

Print J, (a plurality of parts (as shown in the figure) are mounted on the board 1, a connector 3 is fixed to the rear edge 1a side, and the front edge 1b
Insertion/extraction levers 4, 5 are provided at both the upper and lower ends of the.

This printed circuit board 1 is inserted into the shelf 6 as shown by an arrow △ and housed within the shelf 6.

When replacing, etc., it is pulled out of the shell 26 in the direction of arrow B.

1, 2, and 3 show the insertion/extraction lever 5 on the + side in a state where the printed circuit board 1 is accommodated in the shelf 6, respectively.
and the relationship between this and related members.

The insertion/extraction lever 5 is supported by a pin 7 on the printed circuit board 1 so as to be rotatable within a predetermined angular range.

The insertion/removal lever 5 has an operating arm 8 with a long arm and an operating arm 9 with a short arm.

A through hole 10 is formed in the operating arm 8.

11 is an inlet, and 12 is an outlet. As shown in FIG. 2, the inlet 11 has a tapered shape and is wide on the inlet side.

Reference numeral 13 denotes a stepped portion, which is formed to protrude into the through hole 10.

Reference numeral 14 denotes a lock part shrine, which has an abbreviated shape, and has a JJr bent part screwed to the pudding 1 to base 1 with a screw 15, and a vertical arm part 16 connected to an arc part 17 centered on the pin 7 of the insertion/extraction lever 5. It is a horizontal arm part that extends horizontally in front of 9°18i which is attached to the printed circuit board 1, and is bent back from the tip side to form a tongue piece 19 that makes the bullet ↑/1 right. It is. Reference numeral 20 is the tip of the tongue 1119, which is a locking portion 1E that locks the stepped portion 13. 21 is the tip of the horizontal arm 18, the base of the tongue 19 is the locking portion 20 of the tongue 19, and the stepped portion 13 of the insertion/extraction lever 5 (when the pudding 1 to M plate 1 are fully accommodated). The locking portion 20 is arranged to lock the stepped portion 13 at −f' If.1 The length of the horizontal arm portion 18 is shown in FIG. It is designed to protrude more than 18 in the plane.

Next, the operation and motion when lifting the pudding 1 edge plate 1 by 1 llf person will be explained. 1 Pudding 1 to ball plate 1 are 1. II handling lever 5 is inserted into the shelf 6 as shown in FIG. 4 with its neck in the rotational position shown by the dashed dotted line in FIG.

At the final stage of insertion, press the upper and lower offshore levers 4 and 5 to C+.
, perform one PII operation in the direction of DtIJ.

By rotating the insertion/extraction lever 4, the UJ through hole 10 is fitted into the horizontal arm portion 18 of the locking member 14.Since the entrance 11 is arbor-shaped, the above ID; 11.

Further, by rotating the lever 4, the action +11i1 part 9 is applied to the front surface 22 of the shelf 2, as shown in FIG.
, and by the lever principle, the printed circuit board 1 moves in the direction of arrow AiJ.
The connector 3 is connected by being strongly urged in the direction, and the printed circuit board 1 is completely housed in the shelf 6 as shown in FIG.

When the printed circuit board 1 is completely housed in the shell groove, the insertion/extraction lever 5 and the locking member 14 are in the retracted state as shown in FIGS. 1 to 3. .

That is, the locking portions 20 of the three pieces 19 engage with the step portion 13, and the insertion (
The companion lever 5 is restricted from rotating by ff1ll in the direction of arrow D27J and is locked at that position.

Moreover, the action of this locked lever 5 lff1 part 9
However, it is in contact with 23.

As a result, the printed circuit board 1 is restricted from moving in the removal direction and is locked in a state housed within the shelf 2.

The six printed circuit boards 1 are similarly locked by the upper lever 4.

As can be seen from the above, when the operation of housing the printed circuit board 1 in the shelf 2 is completed, it will be locked automatically, and no special operation is required for locking.
Good operability.

Next, the operation for removing the printed circuit board 1 and the vJ function will be explained.

Sorry, unlock the ltj handling lever 5 (4) 1.
The lock is released by, for example, pinching the tip protruding from the lever 5 with your fingertips. As a result, the tongue piece 19 is elastically deformed in the direction of arrow E7J in FIG.
It can be rotated in two directions. .

The method for releasing the lock is not limited to the above, and may be performed by inserting a jig into the hole 10, for example.Then, the upper levers 4 and 5 are rotated 1 degree in the directions of arrows C2 and D2. .

By rotating the lever 5, the operating arm 9 presses against the surface 24 as shown in FIG. 6, and the printed circuit board 1 is strongly urged in the direction of the arrow 131J by the lever principle, as shown in FIG. like,
Start removing from cylinder 1 and 6. After that, pudding 1~
The substrate 1 is placed in the state shown by the dashed dotted line in FIG. 7, and placed in the shell.

FIG. 8 shows a modification of the locking mechanism of the iL1 lever 5A.

This insertion/extraction lever 5A has 7+1 when releasing the lock.
A lock release button 25 is provided.

When the button 25 is pressed in the locked state in which the engaging portion 20Δ of the tongue piece 19Δ is retaining the stepped portion 13, the tongue piece 19Δ is bent and the lock is released.

In this configuration, the horizontal arm portion 18 of the locking member 14A
A(7) The handle has a length that does not protrude forward from the currency opening 10.1 Note that the locking by the locking member of the II Ik levers 4 and 5 is not limited to the configuration shown in -F. Any configuration may be used as long as it engages a portion of the lever 4.5 when the lever levers 4, 5 are rotated at the end position.

Note that a configuration in which the locking member 14 is provided not on the printed circuit board 1 but on the shell 76 side is also conceivable.

However, if you do it like this, there will be 6 sets of shelves! The influence of i'7 accuracy extends to the locking part, and the timing of locking deviates from the point when the printed circuit board is completely accommodated, and there are cases where it is locked several songs after the printed circuit board is completely accommodated1.In this case, the printed circuit board 4 ．． ! In the state where treatment 1 is completely accommodated (at t5,
The insertion/extraction lever is loose, and the print is below↓. This means that the L plate 1 can move slightly in the removal direction with respect to the shelf, and the lock tends to be incomplete.

On the other hand, when the locking member 14 is placed on the print bulb 1 itself as in the above embodiment, the influence of the above-mentioned shelf assembly error is eliminated, and the storage of the prints 1 to nt boards is completed. , the insertion/extraction lever 4.5 is locked at one point, the insertion lever 4.5 has no looseness 1'', and the print head 1 is completely locked against the shelf 6.

(Effects of the Invention) As explained above, according to the present invention, locking toughness is performed in connection with the operation of inserting and storing a printed circuit board in a shelf, and the printed circuit board is locked against the shelf. Because of the structure, no special operation is required for one lock, and the operation is easy and you can avoid forgetting to lock the lock.

A locking member is provided on the printed circuit board itself, and this is configured to lock the insertion lever that is also located on the printed circuit board, so the lock part is not affected by the assembly accuracy of the shelf, and the insertion lever is Hagatatsu J"<r<
Thus, the printed circuit board can be locked with limited handling and limited access.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of four parts of the Pudding l-M temporary locking mechanism according to an embodiment of the present invention, Fig. 2 is a sectional view taken along the line ■-■ in Fig. 1, and Fig. 3 is a
2. A view viewed from the direction ■-■ in the figure, showing the board 1 in FIG. 1 in correspondence with the shelf. Figure 5 of the same figure is a diagram showing the state immediately before locking when inserting the printed circuit board, Figure 6 is a diagram showing the initial state of the printed circuit board assembly, and Figure 7 is a diagram showing the state of the printed circuit board 4fi being removed. , FIG. 8 is a diagram showing another example of locking the insertion lever. 6 is a shelf, 101, te1 gravity specific gravity 13 is a stepped portion, 14 is a locking member, 18 is a horizontal arm portion, 19 is a tongue piece, 20 is a locking portion, and 23 is a surface. Patent Applicant Fujitsu Ltd. In the diagram, 1 is the printed circuit board, 4.5 is the insertion lever 7' ring pk matagin, and the contact ball just before the harrow 2 is shown. The sweet and sweet Korean example of j dai, 5 ho 1''
Country chart top 1 glance back 2 A coffee

Claims (1)

[Scope of Claims] On both ends of the front edge (1b) of the printed circuit board (1) inserted and housed in the shelf (6), rotationally operated at the final stage of insertion and the initial stage of removal, A device for locking a printed circuit board in a stored state in a shelf, which is provided with an insertion/extraction lever (4, 5) that locks a part (23) of the shelf and urges the printed circuit board in the insertion direction and the extraction direction. The printed circuit board (1) itself is provided with a locking member (14) that engages the insertion/extraction levers (4, 5) rotated to the final position during the insertion, and the insertion/extraction levers (4, 5) ) is part of the above shelf (23
) is locked by the locking member (14), and the printed circuit board (1) is secured to the shelf (6).
) Printed circuit board locking mechanism configured to be locked against.