JPH0546312Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention relates to a mounting structure for printed wiring boards, and in particular, when repairing or adjusting equipment, the printed wiring board can be raised and tilted diagonally without completely removing it from the housing. This invention relates to a printed wiring board mounting structure that allows work to be carried out by temporarily fixing the printed wiring board in a fixed state.

[Prior Art] When installing a printed wiring board within an electronic supply housing, the printed wiring board is fixed to a mounting portion of the housing, chassis, or the like using screws or the like. When repairing or adjusting equipment, it may be easier to work by removing the screws and tilting the printed wiring board, but conventionally there was no way to hold the printed wiring board in this position. Instead, the printed wiring board is removed from the housing, chassis, etc. during work.

[Problems to be solved by the invention] However, the conventional method of completely removing the printed wiring board for repair, adjustment, etc. has the drawback of extremely poor workability.

The purpose of this invention is to eliminate the above-mentioned conventional drawbacks and to provide a printed wiring board mounting structure that allows the printed wiring board to be temporarily fixed in an upright position when repairing or adjusting equipment, etc. .

[Means for Solving the Problems] The printed wiring board mounting structure of this invention is a mounting structure for mounting a printed wiring board on a housing, chassis, or other mounting part of an electronic device. A small metal fitting having an engaging stepped portion on the rear edge is attached to the end side, and an engaging pin is provided protruding from the small metal fitting, and a side plate located on the side of the side edge of the printed wiring board has a , a guide groove provided with a track for guiding the engagement pin so that the printed wiring board is in a horizontal state, and an engagement piece capable of engaging the engagement step portion; is formed with an engaging portion that engages the engaging pin so that the printed wiring board is held in an inclined state when the engaging stepped portion is engaged with the engaging piece. .

In this case, a screw hole may be formed in the engagement piece so that the engagement piece also serves as a mounting portion for the printed wiring board.

[Function] As before, printed wiring boards are fixed to the mounting parts of the housing, chassis, etc. with screws, etc., but when repairing or adjusting equipment, the screws are removed and the printed wiring board is moved forward in this state. Raise the front edge side while pulling it out.

An engagement pin protruding from a small metal fitting attached to the rear end of the side edge of the printed wiring board is fitted into a guide groove formed in the side plate located on the side of the side edge of the printed wiring board. The guide groove has a track that guides the engagement pin so that the printed wiring board can advance diagonally upward. The engagement step portion is engaged with the engagement piece while the printed wiring board is moved forward to a position where the rear end edge of the small metal fitting passes through the engagement piece. As a result, the engaging pin cannot descend within the guide groove, so the printed wiring board is maintained in an inclined state and temporarily fixed.

Repairs, adjustments, etc. are performed in this state, and after the work is completed, the engagement between the engagement step and the engagement piece is released, the printed wiring board is returned to a horizontal state, and the printed wiring board is fixed to the mounting part using screws, etc. Fix it.

[Embodiment] An embodiment of the printed wiring board mounting structure of this invention will be described based on FIGS. 1 to 3. Figure 1 is an exploded perspective view of the main parts of the printed wiring board and side plate, Figure 2 is a side view showing the relationship between the engagement pins and guide grooves, and Figure 3 is a temporary view of the printed wiring board when it is tilted. FIG. 3 is a perspective view showing a fixing process.

In the figure, 1 is a printed wiring board, 2 is a small metal fitting attached to the rear end side of both side edges 1a of the printed wiring board 1, and is shaped like an "L" in cross section by the mounting piece 2a and the vertical piece 2b. It is formed into a mold, and an engaging stepped portion 3 is formed on the rear end edge 2c. This small metal fitting 2 has an engaging pin 4 projecting in the lateral direction, and in the embodiment, the engaging pin 4 is formed by screwing a stepped screw into the vertical piece 2b.

Reference numeral 5 denotes a side plate located on the side of the side edge 1a of the printed wiring board 1, and when a part of the casing is provided with a cut-and-raised part and the printed wiring board 1 is attached using this as a mounting part, the casing is The side plate of the body becomes the side plate 5, and if there is a distance between the side edge 1a and the case side plate when the printed wiring board 1 is attached to a chassis etc., the side plate is used as a part of the chassis. 5 may be launched. This side plate 5 has a guide groove 6 provided with a track for guiding the engaging pin 4 so that the printed wiring board 1 can move diagonally upward, and a state in which the printed wiring board 1 is moved forward. An engagement piece 7 with which the engagement step 3 can be engaged is provided, and the rear edge 2c of the small metal fitting 2 is connected to the front edge 7a of the engagement piece 7.
If the engagement step 3 is engaged with the engagement piece 7 while the printed wiring board 1 is moved forward to a position where it passes through the guide groove 6, the engagement pin 4 will not be able to descend within the guide groove 6. The printed wiring board 1 is temporarily fixed while maintaining the oblique state.

To explain the above configuration in detail, the guide groove 6 is connected to the side plate 5.
An "L" shaped part 6 is formed from the upper edge through a "V" shaped notch 6a and communicates with the notch 6a.
b and the folded portion 6c from the tip of the “L” shaped portion 6b.
and an inclined portion 6d formed diagonally through the slanted portion 6d. In addition, the engaging piece 7 is the side plate 5 in the embodiment.
A substantially "U"-shaped notch 7b is formed in a part of the board, and the remaining piece is bent inward to form a horizontal engagement piece 7, and the printed wiring board 1 is attached to this engagement piece 7.
A screw hole 8 is provided for fixing the engaging piece 7 with a screw so that the engaging piece 7 can also be used as a mounting part for the printed wiring board 1.

Therefore, when assembling the printed wiring board 1, the printed wiring board 1 is assembled by lowering the engagement pin 4 from the notch 6a and lowering it to the bottom of the inclined part 6d via the "L" shaped part 6b and the folded part 6c. is the engaging piece 7
It is placed horizontally, and in this state it is screwed into the screw hole 8.

When repairing or adjusting equipment, remove the screws, pull out the printed wiring board 1 forward, and lift the front edge of the printed wiring board 1. The engaging pins 4 will rise along the slope 6d, and the engaging pins will 4
When it reaches the vicinity of the folded part 6c, the rear edge 2 of the small metal fitting 2
c passes through the front edge 7a of the engagement piece 7, so the engagement step 3 is engaged with the engagement piece 7 in this state. As a result, as shown in FIG. 3, the engaging pin 4 cannot descend within the inclined portion 6d by engaging the vicinity of the folded portion 6c as the engaging portion 6e. The printed wiring board 1 serves as a fulcrum of a "lever" and maintains its inclined state.

[Effects of the invention] According to the mounting structure of the printed wiring board of this invention, when repairing or adjusting equipment, the printed wiring board can be raised up and temporarily fixed in an inclined state, which improves the workability of repairs, etc. Since the structure is not particularly complicated, it is most suitable as a mounting structure for a printed wiring board.

[Brief explanation of drawings]

The drawings show an embodiment of the printed wiring board mounting structure of this invention. Figure 1 is an exploded perspective view of the main parts of the printed wiring board and side plate, and Figure 2 shows the relationship between the engagement pin and the guide groove. The side view shown and FIG. 3 are perspective views showing the process of temporarily fixing the printed wiring board in a tilted state. 1...Printed wiring board, 2...Small metal fittings, 3...
Engagement step portion, 4... Engagement pin, 5... Side plate, 6...
Guide groove, 6e... Engaging portion, 7... Engaging piece, 8...
...screw hole.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. In a mounting structure for mounting a printed wiring board to a housing, chassis, or other mounting part of an electronic device, an engagement step is provided on the rear end side of the side edge of the printed wiring board. A small metal fitting having a section is attached, and an engaging pin is protruded from the small metal fitting, and the printed wiring board is placed in a horizontal state on a side plate located on the side of the side edge of the printed wiring board. A guide groove having a track for guiding the engagement pin and an engagement piece capable of engaging the engagement step are provided in the guide groove. A printed wiring board characterized in that an engaging portion is formed to engage the engaging pin so that the printed wiring board is held in an inclined state when engaged with the engaging piece. installation structure. 2. The printed wiring board mounting structure according to claim 1, wherein the engaging piece has a screw hole formed therein so that the engaging piece also serves as a mounting part for the printed wiring board.