JPS5844483Y2 - Yoke mounting device for fluorescent light fixtures - Google Patents

Description

[Detailed explanation of the idea] This invention relates to a yoke mounting device for a fluorescent light fixture.

As is well known, this type of yoke is used for fixing reflectors and positioning fluorescent lamps.

That is, at least two yokes are mounted across the width of the instrument body at appropriate intervals along the length of the instrument body.

The attachment position of the appliance main body to the ceiling is then determined by screwing a reflector to this yoke or by fixing both ends of the yoke to the ceiling edge.

By the way, the yoke is attached to the instrument main body by forming a pair of key parts facing each other on the yoke and inserting these into holes provided in the side wall of the instrument main body from the outside.

Specifically, by pushing the side wall of the instrument body inward against its elasticity, inserting it between the opposing key parts, facing the key part with the hole, and then releasing the recess in the side wall, The key fits into the hole when it returns to its original position due to the elasticity of the side wall.

This allows the yoke to be attached to the instrument body.

However, with this mounting method, if the side wall is carelessly pinched and lifted, the side wall will snap inward and the key will come out through the hole, causing the yoke to fall out of the lifted device body. Sometimes I end up doing it.

The purpose of this invention is to prevent the yoke, once attached, from unnecessarily separating from the instrument body.

An embodiment of this invention will be described with reference to the drawings.

Reference numeral 1 designates an instrument main body having a U-shaped cross section, 2 a side wall, and 3 a yoke.

As shown in FIG. 1, the appliance main body 1 is installed on a ceiling or the like with its open side facing downward.

A hole 4 is formed in the side wall 2 into which a key portion to be described later can be inserted.

The yoke 3 has key parts 5 facing each other with an interval slightly narrower than the width of the instrument body 1.

6 is a leg. To attach the yoke 3 to the instrument body 1, the side wall 2 is shrunk inward and then inserted between the opposing key parts 5.

After aligning the hole 4 with the tip of the key part 5, the side wall 2
Once the tension is released, the side wall 2 returns to its original state due to its restoring elasticity, and at this time the key portion 5 is inserted into the hole 4 from its tip.

This attachment operation has already been explained.

However, according to this invention, a retaining piece 7 whose tip faces toward the installation side of the key part 5 is formed on the yoke 3 by cutting and bending.

At the initial stage of inserting the key part 5 into the hole 4 as described above,
The retaining piece 7 is pushed down by the lower edge 2A of the side wall 2, but when it is fully inserted, the lower edge 2A finishes passing over the engaging piece 7, so the retaining piece 7 has its restoring elasticity. stands up again.

At this time, the tip of the retaining piece 7 faces or comes into contact with the inner surface of the side wall 2 above the lower edge 2A.

If you pinch the side wall 2 in an attempt to lift the instrument body 1 with the yoke 3 attached, the side wall 2 will try to contract inward, but at this time the tip of the retaining piece 7 will come into contact with the inner surface of the side wall 2. The side wall 2 cannot move inwards beyond this point.

As a result, the hole 4 cannot be pulled out from the key part 5, and therefore the yoke 3 is prevented from detaching from the instrument body 1.

If the retaining piece 7 were not provided, the key part 5 of the hole 4 could be freely removed from the key part 5, so when the side wall 2 is pinched in an attempt to lift the instrument body 1, it will not collapse inward. It is clear that the key part 5 could easily be pulled out from the hole 4 if the key part 5 were to be removed.

As shown in the figure, if an inclined part 8 is provided on the inner surface of the proximal end of the key part 5 and a downwardly directed retaining piece 9 is provided on the inner surface of the distal end of the key part 5, when the key part 5 is inserted into the hole 4, , the lower edge 2A rises on the inclined portion 8, and the lower edge of the hole 4 approaches or abuts the inner surface of the tip of the key portion 5.

Therefore, even if the side wall 2 is shrunk inward, the lower edge of the hole 4 touches the retaining piece 9 and cannot be shrunk inward beyond this, thereby also preventing the yoke 3 from coming off.

Therefore, in addition to the retaining piece 7, the inclined part 8. By providing the engagement piece 9, it is possible to more reliably prevent the yoke 3 from coming off.

As detailed above, according to this invention, the yoke attached to the instrument body has the effect of reliably preventing the yoke from detaching from the instrument body even if the side wall of the instrument body is subsequently lifted in such a way as to compress it. play.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing an embodiment of this invention, FIG. 2 is a perspective view of the yoke, and FIG. 3 is an enlarged sectional view of the main parts. 1... Appliance body, 2... Side wall, 3...
... Yoke, 4 ... Hole, 5 ... Key part, 7 ... Engagement piece.

Claims (1)

[Scope of utility model registration request] A retaining piece is provided on a yoke formed with the key parts facing each other, the tip of which faces toward the installation side of the key part, and when the key part is inserted into the hole formed in the side wall of the main body of the instrument, the retaining piece is provided. A yoke mounting device for a fluorescent lamp apparatus, wherein the tip of the joint piece faces or abuts the inner surface above the lower edge of the side wall.