JPH03171698A - Rotary holding device for printed board - Google Patents

Abstract

PURPOSE:To obtain a holding device which is able to surely hold a printed board even if it is vertical or horizontal in position by a method wherein slits are provided to an L-shaped holder extending to its bent part, and the L-shaped holder is fixed to a mounting table taking advantage of machine screws inserted into slits. CONSTITUTION:A holding device is composed of a holder 5 L-shaped in cross section, which is fixed to a printed board 1 with machine screws 2 and provided with two slits 5a and 5b that extend vertical to its lengthwise direction reaching to its bent part, mounting protrusions 6c and 6d which are formed by bending protrusions provided to the upper side of a chassis and provided with tapped holes 6a and 6b, and two machine screws 7 which are inserted into the slits. When the printed board 1 is mounted at a horizontal position, it is kept horizontal in position, the machine screws 7 are fitted into the tapped holes 6a and 6b and fastened. When the printed board 1 is kept at a vertical position, the machine screws 7 are unfastened, and the board 1 is fitted upright and then fixed by fastening the machine screws again.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a printed circuit board rotating and holding device used in various electronic devices having a printed circuit board, such as an optical disk device.

(Prior Art) A conventional printed circuit board rotating and holding device of this type will be explained with reference to FIGS. 5 to 7. FIG. 5 is an exploded perspective view of a conventional printed circuit board rotating and holding device, and FIGS. 6 and 7 are side views of essential parts showing the printed circuit board in horizontal and vertical positions, respectively. In Figure 5, the conventional printed circuit board rotation holding device is
Projections 3c and 3d, which are fixed to the printed circuit board l with a plurality of screws 2 and have round holes 3a and 3b for mounting at both ends, also have a Z-shaped cross section with bent portions 3e formed at the two edges, respectively. It consists of a metallic holder 3, two L-shaped engagement protrusions 4a and 4b formed at the upper end of the vertical wall of the chassis 4, and a platform-shaped stopper 4C in the middle. has been done.

The operation of the thus configured printed circuit board rotation and holding device will be explained.

In FIG. 6, in order to attach the printed circuit board to the chassis 4 in a horizontal state, the round holes 3a and 3 of the holder 3 are
After inserting the screws into the L-shaped engaging protrusions 4a and 4b of the chassis 4, the screws are placed in a horizontal position. In addition, when it is necessary to stand up the printer 1 and the board 1 during equipment servicing, etc., the L-shaped engaging protrusions 4a and 4b are used as fulcrums to rotate in the direction of time shown by arrow A, and the seventh As shown in the figure, the bent portion 3e of the holder 3 was placed vertically against the collar 4c.

(9! Problem to be solved by Akira) However, with the above configuration, when servicing the equipment, as shown in Figure 7, when the printed circuit board 1 is stood upright, it is difficult to move in eight directions due to slight vibrations and shocks. There was also the problem that the printed circuit board 1 would fall down due to vibrations even when it was placed horizontally as shown in FIG. 5. The present invention solves the above problems.
The present invention provides a printed circuit board rotating and holding device that can reliably hold the printed circuit board regardless of whether it is positioned horizontally or vertically. (Means for Solving the Problems) In order to solve the above problems, the present invention provides an L-shaped holder with a slit spanning the bent portion, and utilizes a screw inserted through the slit. It is fixed to a mounting base formed by bending the -L@ of the chassis.

(Function) With the above configuration, if it is necessary to rotate the printed circuit board when servicing the equipment, it can be held securely by loosening the screws, rotating the printed circuit board using the screws as a fulcrum, and then tightening the screws again. can.

(Example) An example of the present invention will be described with reference to FIGS. 1 to 4. FIG. 1 shows a printed circuit board rotation holding device htt according to the present invention.
The exploded perspective view, FIG. 2, FIG. 3, and FIG. 4 are sectional views of main parts for explaining the operation.

In the first figure, the printed circuit board rotating and holding device R according to the present invention is fixed to a printed circuit board 1 with a plurality of screws 2.
A holder 5 made of metal, for example, in the shape of a slit, and a protrusion formed at one end of the chassis 6, are provided with two slits 5a and 5b extending over the bent part and perpendicular to the lugs. It consists of mounting projections 6c and 6d which are bent and provided with screw holes 6a and 6b, respectively, and two screws 7 which are inserted into the slits 5a and 5b.

To mount the remaining printed board 1 in a horizontal position using the printed circuit board rotation holding device ``l'' constructed in this way, the 5th second
As shown in the figure, while holding the printed circuit board 1 horizontally, the screws 7 inserted through the slits 5a and 5b of the holder 5 are fitted into the screw holes 6a and 6b of the mounting projections 6c and 6d of the chassis 6. If you want to stand the printed circuit board 1 vertically when servicing the equipment, loosen the screws 7 and raise the printed circuit board 1 to the board in the direction of arrow A as shown in Figure 3. Since it can be easily stood up using 7 as a support, tighten the screw 7 again to fix it while standing vertically.

Horizontal and square 4: r. Since both are fixed with screw 7, they will not fall off or fall due to vibration or impact. Also, when returning the printed circuit board to its original horizontal position, loosen the screw 7 and set it at 'f' in the opposite direction to when raising it. (Effects of the Invention) As explained above, according to the present invention, the printed circuit board can be opened and closed simply by loosening the screws, so there is no need to worry about a dropped screw causing an electrical short circuit. .

A printed circuit board rotation holding system that can be reliably held in horizontal and vertical positions, has good workability, and is highly reliable is obtained.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of the printed circuit board rotating and holding device μ according to the present invention, Figs. 2, 3 and 4 are enlarged cross-sectional views of main parts of the side bucket for explaining its operation, and Fig. 5 is a conventional one. An exploded perspective view of the printed circuit board rotating and holding device, and FIGS. 6 and 7 are side views of essential parts for explaining its operation. l... Printed circuit board, 2,7... Screw,
3, 5...Holder, 3a g 3b...Round hole, 3c, 3d...Protrusion, 3e...Bend portion, 4
．． 6 - chassis, 4a, 4b - L-shaped engagement protrusion, 4c... stopper, 5a, 5b... slit, 6a, 6b... screw hole, 6c, 6d mounting protrusion.

Claims (1)

[Claims] A holder with an L-shaped cross section that is attached to the printed circuit board and has multiple slits spanning the bending line and perpendicular to the slits, multiple screws that are inserted through the slits, and horizontally formed on the upper end of the chassis. A printed circuit board rotation holding device comprising a plurality of mounting protrusions having screw holes corresponding to the slits.