JPS61223318A - Space bush - Google Patents

Abstract

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

Description

[Detailed Description of the Invention] [1 Already Required] A spacing Boussocie combining a flywheel and a core,
The structure is such that a tightening screw can be inserted into this spacer bushing and screwed onto the mounting plate using only a screwdriver.

[Industrial application field]

The present invention relates to a spacing bushing for supporting and fixing holders and the like at predetermined intervals, and particularly to a spacing bushing that can be easily installed in a narrow space.

In recent years, there has been a strong demand for electronic devices to be smaller and more lightweight. Therefore, when mounting a holder for a component mounted inside a device at a predetermined distance from a mounting plate, a spacer or a holder bent into a U-shape is generally used. However, since it is difficult to install in a narrow space, it is desired to develop a bushing that can be easily screwed on with only a screwdriver.

[Conventional technology]

2 and 3 are a side view of the main part using a spacer, and FIG. 3 is a side view of the main part using a holder, for explaining a conventional spacing bush.

In FIG. 2, a mounting plate 1 made of a metal material such as iron is shown.
, then tighten the holder 3 by a predetermined distance (D) and tighten the screw 4.
When screwing the spacer 2 in place, first place the spacer 2 in contact with the not-illustrated hole 1' in the mounting plate 1, and align the not-illustrated hole in the spacer 2 with the hole drilled in the holder 3. It has a structure in which it is screwed in with a tightening screw 4 in this state.

In FIG. 3, a metal material such as iron is bent into a U-shape, and the center of the bottom of the U-shape is placed lTl2 (=J
When fixing the holder 5 provided with a hole to the mounting plate 1, the structure is such that the holder 5 is first brought into contact with a screw hole (not shown) in the mounting plate 1, and then screwed in with the tightening screw 4.

, [Problem that the invention seeks to solve]
” - The structure of the bushing has the problem that it is very difficult to install it in a narrow place, such as a place that cannot be accessed, and the U-shaped holder requires many man-hours to bend. was there.

[Means for solving problems]

The present invention provides a spacing bunche that solves the above problems. That is, the problem can be solved by inserting the core 8 into the spring ring 7, inserting the tightening screw 4 into the set spacing bushing, inserting the spacing bushing into the hole 61 of the holder 6, and screwing it onto the mounting plate 1. be done.

[Effect]

The spacing bushing has a structure that allows the spring ring, core, and holder to be inserted into the tightening screw all at once and screwed onto the mounting plate using only a screwdriver, and there is no fear of loosening due to the elasticity of the spring ring.

〔Example〕

FIG. 1 is a detailed explanation of the present invention (al is an exploded perspective view, and FIG. 1(b) is a side sectional view after installation; parts equivalent to those in FIG. 2 are given the same reference numerals.

In Fig. 1+al, it is made of an elastic metal such as a steel bar, and has a partially tapered hole 71 and a plurality of notches 72 (at least four along the circumference). Spring ring 7 and 1. The core 8, which is made of metal such as iron and has a screw insertion hole 81 and whose outer periphery is shaped like a drum, is inserted into the spring ring 7. In this case, the minimum diameter of the taper of the hole 71 forming the taper of the spring ring 7 is If the part is D and the outer diameter of the thin core 8 is d, then the relationship D>d must be satisfied.

After inserting the core 8 from the end of the spring ring 7 where the notch 72 is provided, the tightening screw 4 is inserted into the screw insertion hole 81 of the core 8, and then the spring ring 7 is inserted into the hole of the holder 6. 81, and screw the tightening screw 4 into the threaded hole 11 of the mounting plate l, the notch 72 of the spring ring 7 will align with the drum-shaped inclined part of the core 8, as shown in FIG. 1(b). When the core 8 comes into contact with the mounting plate 1, the screwing is completed.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, the holder can be easily installed in a narrow space, and the elasticity of the spring ring reduces the risk of loosening, so that improved quality can be expected.

[Brief explanation of drawings]

Figure 1 is an exploded perspective view for explaining the present invention in detail, lb) is a side sectional view after installation, Figures 2 and 3 are
The drawings are for explaining a conventional spacing bush. FIG. 2 is a side view of the main part using a spacer, and FIG. 3 is a side view of the main part using a holder. In the figure, ■ is a mounting plate, 2 is a spacer, 3, 5, 6 is a holder, 4 is a tightening screw, 7 is a spring ring, 8 is a core, 11 is a screw hole, 61 is a blank hole, and 71 is a taper. 72 is a notch, and 81 is a screw insertion hole.

Claims (1)

[Claims] A spacing bush for supporting and fixing a holder, etc. at a predetermined distance from a mounting plate, the spacing bush being formed by a spring ring (7) with a plurality of notches and a drum-shaped taper on the outer surface. The core (8) is inserted into the spring ring (7), the tightening screw (4) is inserted into the core (8), and the holder (5) is inserted. A spacer bushing characterized in that it is screwed onto an intervening mounting plate (1).