JPS5936952Y2 - spacer - Google Patents

Description

[Detailed explanation of the idea] This invention relates to a spacer.

Generally, spacers are interposed between objects in order to maintain a constant distance between the objects, but when there are many objects to be attached, a corresponding number of spacers are required.

Fig. 1 shows an example in which a printed board is attached to a case C with a spacer a interposed therebetween. In this case, a spacer a is located between the printed boards and between the printed board and the case.
The case and the topmost printed board are fixed to the spacer with screws d, and each intermediate printed board is fixed to the spacer with headless screws e.

According to this, the same number of spacers a are required as there are printed boards to be attached, and as the number of printed boards increases, the number of spacers also increases, and the installation work becomes more laborious.

Furthermore, multiple printed boards cannot be fixed at the same time, the headless screws used to fix intermediate printed boards are troublesome to handle, and the more layers there are, the weaker the strength against twisting etc. There is also.

This idea was made to solve the above-mentioned inconveniences of the conventional spacers.It can be installed by simply fitting it in, no screws are required, and one spacer can be used for multiple printed boards. The gist is that grooves for fitting printed boards are arranged in parallel on the circumferential surface of a columnar (or rod-shaped) body whose cross-sectional area gradually changes from one end to the other.

Hereinafter, a detailed explanation will be given with reference to drawings showing an embodiment of this invention. Reference numeral 1 denotes a spacer made of synthetic resin or the like;
It has a truncated conical shape (truncated conical shape) with a cross-sectional area that gradually changes from one end to the other, and there are grooves on its circumferential surface.
a are arranged in parallel at predetermined intervals.

Reference numeral 2 denotes a printed board, in which holes 2a are formed to fit into the grooves 1a of the spacer 1, and the diameters of the holes correspond to the diameters of the grooves of the spacer 1, respectively.

Therefore, the holes 2a of the printed board 2 have different sizes.

This printed board 2 is held and fixed at a fixed interval using spacers 1, but the point of attachment is to use spacers 1.
The hole 2a of the printed board 2 may be fitted into the groove 1a.

That is, the printed boards 2 with the largest hole 2a are fitted in order, but since the diameter of the hole 2a is smaller than the diameter of the upper edge of the groove 1a, it is not possible to suddenly fit the printed board into the groove 1a.
When the hole 2a is caught on the upper edge of the groove 1a, the printed board 2
By pressing downward, it can be slid over the upper edge of the groove 1a and snapped into the groove 1a.

In this way, all the printed boards 2 can be fitted into the grooves 1a of the spacer 1, respectively.

The spacer 1 is fixed to the case 3 with screws 4.

According to this invention, mounting grooves are provided in parallel in a truncated conical spacer, and printed boards with holes corresponding to these grooves are sequentially fitted, thereby allowing multiple printed boards to be mounted at predetermined intervals. Therefore, there is no need to interpose a spacer between each printed board, and screws for fixing each printed board are not required, which greatly simplifies the installation work.

Furthermore, even if the number of printed boards increases, since they are attached to one spacer, the structure is strong against external forces such as twisting.

Furthermore, since the hole diameters formed in each printed board are different, it is easy to distinguish between printed boards, and when combined,
This is advantageous because printed boards can be placed accurately without making mistakes in the order.

Note that the shape of the spacer is not limited to that of the embodiment described above, and may be a cone, a pyramid (truncated pyramid), or any other suitable columnar shape.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of a conventional example, FIG. 2 is a sectional view of a main part showing an embodiment of this invention, and FIG. 3 is an external view of a spacer. 1...Spacer, 1a...Groove, 2...
...Printed board, 2a...hole, 3...
...Case, 4...Screws.

Claims (1)

[Scope of utility model registration request] A spacer characterized in that grooves for fitting plate materials are arranged in parallel on the circumferential surface of a columnar body whose cross-sectional area gradually changes from one end to the other.