JPS58118197A - Fixing mechanism for printed board - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] The invention of B relates to a fixing mechanism for a printed board.

A printed board installed in an electronic device is generally configured to be detachable from a connector 2 fixed to a motherboard 1, as shown in FIGS. The attachment/detachment operation is normally carried out by the operator while holding a part of the printed board 3. By the way, when fixing the printed board 3 to the 7-yard 74 etc. in the device, the stripe 1 figure (at, fb) It is constructed so that it can be fixedly operated using a thumbscrew 5, as shown in FIG. In addition, @1 figure (at K te 1
Reference numeral 8 indicates a fixing nut member, and reference numeral 8 indicates a fixing panel (surface plate) to which the printed board 3 is fixed via fixing screws 9.

According to each of the above configurations, after the printed board 3 is attached to the connector 2, the printed board 3 is securely fixed to the yarn 4 via the thumbscrew 5 or the ejector 6.

However, the conventional configuration described above has the following problems. That is, first of all, when attaching the printed board 3 to the connector 2, it can be attached by pressing the printed board 3 toward the connector 2 either directly or via the panel 8 or the like. , thumbscrew 5
In the case of the configuration shown in FIG. , the work of inserting the printed board 3 was extremely troublesome and had poor workability.Secondly, the structure in which the printed board 3 is fixed via the ejector 6 (see Fig. 2(a)
In the case of (b)), are there any of the above disadvantages? In this case, when the printed board 3 is to be pulled out, it must be pulled out by hand by the operator, and for that purpose, the printed board 3 is equipped with a pull-out device. There are two ways to make the extraction work easier, either by providing a station attendant or by using a extraction jig, which is not a good solution.

As mentioned above, the conventional structure also has its drawbacks and is not satisfactory.

The present invention has been made in view of the problems in the prior art described above, and by providing a printed board fixing mechanism that allows insertion, fixation, and removal of the printed board to be carried out extremely smoothly, This is a solution to a technical problem. Embodiments of the present invention will be described in detail below using the drawings from FIG. 3 onwards. In addition,
In the following description, the same members as those shown in FIGS. 1 and 2 will be designated by the same reference numerals, and the description thereof will be omitted.

In FIG. 3, the printed board 3 is generally indicated by 10.
This is a fixing mechanism (thumb screw mechanism) for the printed board 3, which is configured so that the printed board 3 can be reliably identified with respect to the printed board housing 11, and can obtain the pulling operation force when the printed board 3 is pulled out. It is configured as follows. That is, Figure 4 is an exploded view of each component that makes up the printed board fixing machine l1llllO.As shown in the figure, the printed board fixing mechanism 1
0 fixes the operating knob 12 for rotational operation and the printed board 3.

A screw rod 13 for pulling operation and a retaining ring 14. It is composed of four members: a screw rod U and a locking member 15 which is configured to be freely engageable and detachable. The operating knob 12 has a knob portion 12a, a flange portion 12b, and a shaft portion 12c and K.
The shaft center part is provided with a screw hole 16 for attaching a threaded rod 13, and the shaft part 12c has an Ichikawa groove 17 carved in the outer peripheral surface of the shaft part 12c. There is. The screw rod 13 is configured to be freely connected to the screw hole 16 of the imitation knob 12, and has a screw rod that engages in a direction perpendicular to the axial direction at the end opposite to the side that is engaged with the screw hole 16. Stopper/1
3a is made into a threaded rod body tab K 111 and is integrally provided. The locking member 15it is integrally embedded in the printed circuit board housing 11 as shown in FIG. A hole 15a is provided, and a groove t for guiding the locking pin 13a in the screw rod 13 is provided.
ab is provided. As shown in FIG. 6, a groove 15c for locking the bottle 13a is provided in the hole of the $x5b at an appropriate angle .alpha. relative to the longitudinal direction of the groove 15b. That is, the groove 15 c ii locking pin 13 a
The guide groove 15b is formed to intersect with the guide groove 15b at an appropriate angle α. A locking groove 15d for locking the locking pier 13a in cooperation with the sloped groove 15c is provided in the guide groove 15t) located on the back side of the side where the sloped groove 15c is formed. This groove 15 on the back side
(L is formed so as to form a letter 1 so as to be inclined in a direction symmetrical to the direction of inclination of the groove 15c (with respect to the axis perpendicular to the axial direction of the engaging member 15).

Operation knob 12i, i, third in the fixing mechanism 10
As shown in the figure, the shaft portion 12c is connected to the panel (surface plate) 8.
It is configured to be attached to the panel 8 by inserting it into a hole (not shown) provided in the panel 8 and then locking the retaining ring 14 in the groove 17.

The operation of this invention will be explained in detail in the above-mentioned structure.

First, when inserting the connector plate 3 into the connector 2,
As shown in FIGS. 7 and 8, the printed board 3 can be inserted into the connector 2 by simply pushing it. In this case, i4!
The screw 13 of the fixing mechanism 10 is simply inserted into the hole 15a of the locking member 15. Next, when one printed board 3 is designated, the operating knob 12 is rotated. Then, as shown in FIG. 9, the screw rod 13 is not inserted into the screw hole 16 of the sweeping knob 12, so the locking pin 13a moves to the right in the figure and locks (11415c). It engages with this #15e at the position.

Furthermore, when the operating knob 12 is rotated, the panel 8 is strongly pressed against the housing 11 as shown in FIG. 3, and the printed board 3 is fixed. You just have to rotate it in the opposite direction to the above. Then, the 10th
As shown in the figure, the locking pin 13a is disengaged from the locking groove 15c where it has been locked and is now locked in the lower (opposite) locking groove 15Q.

If the sweeping knob 12 is rotated in this state, the panel 8
The printed board 3 is forcibly moved to the right in the drawing, and this force causes the printed board 3 to be pulled out from the connector 2 with an even pulling force. Then, with the printed board 3 pulled out, the locking pin 13a is locked 1111.
Once removed from 5C, the screw rod 13 will be free and can be pulled out smoothly.

As described above, according to this invention, when inserting a printed board, it is possible to mount the printed board with a so-called one-touch operation, and when removing the printed board, the pulling force is obtained by the turning force of the screw. This makes it ideal as a printed board identification mechanism. Furthermore, since the screw can be pulled out in six sweeps using screw force, reliable pulling out operation can be expected.

[Brief explanation of drawings]

An explanatory diagram showing the prior art of the mechanism according to the invention, FIG. 3 is a side view of a printed board attachment part equipped with the fixing mechanism according to the invention, and FIG. FIGS. 5 and 6 are exploded explanatory views of essential parts; FIGS. 7 to 11 are enlarged explanatory views of essential parts of the present invention; FIGS. 29. Connector, 3... Printed board, 8... Panel,
IO solid electric rock structure, 12... operation knob, 13 screw rod, 13a... weight pin, 15... locking member, 15 b
, 15 c. groove. Figure 1 Figure 2 (a) (b) (a) (b) Figure 3 Figure 4 Figure 5 Figure 9 n

Claims (1)

[Claims] A connector that can be attached or detached from a connector fixed in an electronic device.
A fixing mechanism for a printed board for fixing a printed board to a 7-Year 7, etc., which includes two sweeping knobs that can be inserted into and locked into holes provided in the surface board of the printed board, and one of the sweeping knobs. A threaded rod part that can be screwed into a screw hole provided in the shaft center part, a guide groove part for guiding the locking pin provided in the threaded rod part so as to be freely inserted and removed, and a guide groove part for guiding the locking pin in the guide groove part. 1. A fixing mechanism for a printed circuit board, comprising: a fixing member having a fixing cap for fixing the board at an appropriate position.