JPS593442Y2 - Yoke for fluorescent light fixtures - Google Patents

Description

[Detailed explanation of the idea] This invention relates to a yoke 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 fixed at appropriate intervals along the length of the instrument body so as to cross the width 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, when the fluorescent light fixture is a recessed type, the main body of the fluorescent light fixture is installed above the ceiling surface, so a yoke is used on the edge of the ceiling surface to adjust the position of the fluorescent light fixture. In order to determine this, it is necessary to use a yoke with legs at both ends.

In other words, this type of yoke has a substantially U-shape structure consisting of a yoke body that crosses the width of the instrument body and legs bent from both sides of the yoke body.

By the way, when the yoke is shipped from the factory, it is normally packed inside the main body of the device.

On the other hand, there has recently been a demand for smaller instrument bodies, and for this reason both the width and depth of the instrument body are sometimes shorter than the length of the legs of the yoke.

Therefore, the yoke cannot be inserted into the instrument body, or even if it is inserted, the legs end up protruding from the instrument body.

This design allows the legs of the yoke to be lengthened or shortened, and when stored in the instrument body, can be shortened and stored.Also, when in use, the legs can be shortened to the required length, and the legs can be changed in length or lengthened. The purpose is to simplify fixation.

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

1 is a box-shaped instrument main body, 2 is a side wall thereof, and 3 is a yoke.

The yoke 3 includes a yoke main body 4, a pair of main legs 5, and an auxiliary leg 6.

The upright wall 7 of the yoke body 4 is formed with a pair of slits 8 that open at the upper end, and holes 9 that widen in opposite directions from each lower end. form.

To attach the yoke body 4 to the instrument body 1, the side wall 2 of the instrument body 1 is pushed inward against its elasticity, and its lower end is inserted into the slit 8.

Then, when the tip of the key part is faced to the small hole 11 formed in the side wall 2 in advance and the side wall 2 is loosened, when it returns to its original position due to the elasticity of the side wall 2, the small hole 11
The key part 10 enters.

This means that the yoke body 4 is attached to the instrument body 1.

The yoke body 4 and the main leg portion 5 integrated therewith are set at a height sufficient to be accommodated within the instrument body 1.

The auxiliary leg section 6 is detachable from the main leg section 5 and is rotatable in the attached state.

For this purpose, a shaft 12 is attached to the main leg portion 5, and a shaft 12 is attached to the auxiliary leg portion 6.
A hole 13 is formed into which the holder can be rotatably fitted.

As a result, with the shaft 12 fitted into the hole 13, the shaft 12
The auxiliary leg portion 6 is rotatable around the center.

Here, when the distance from the center of the shaft 12 to the lower end α of the main leg 5 is L, the distance from the center of the hole 13 of the auxiliary leg 6 to the lower end of the auxiliary leg 6 is longer than the distance. It is.

Note that the shaft 12 may be formed in the auxiliary leg portion 6 and the hole 13 may be formed in the main leg portion 5.

The main leg part 5 has a cut-and-raised piece 14 cut outward above the shaft 12, and the auxiliary leg part 6 has a cut-and-raised piece 15 cut and raised inwardly below the hole 13. form.

The upper end C of the auxiliary leg part 6 can be engaged with the cut-and-raised piece 14, and the lower end a of the main leg part 5 can be engaged with the cut-and-raised piece 15, respectively.

The lower end of the auxiliary leg portion 6 has a bent portion 16, which engages with the field edge.

When the instrument main body 1 is packed, the yoke main body 4 and the auxiliary legs 6 are stored separately inside the instrument main body 1, as shown in FIG.

When installing the instrument, the auxiliary leg 6 is attached to the main leg 5 by fitting the shaft 12 of the main leg 5 into the hole 13 of the auxiliary leg 6 (see FIG. 3).

Next, the auxiliary leg section 6 is rotated about the shaft 12 so that the upper end C of the auxiliary leg section 6 is engaged with the cut and raised piece 14, and the lower end a of the main leg section 5 is engaged with the cut and raised piece 15.

This means that the auxiliary leg section 6 is securely fixed to the main leg section 5.

When fitting the shaft 12 into the hole 13, it is expected that the cut and raised pieces 14 will touch the auxiliary leg part 6 and the cut and raised pieces 15 will come into contact with the main leg part 5, so that they cannot be brought into contact with each other and overlapped. In reality, the distance from the center of the hole 13 in the auxiliary leg 6 to the side edge of the auxiliary leg 6 is calculated from the axis 1 of the main leg 5.
2 to the cut and raised piece 14, and the main leg portion 5
If the distance from the shaft 12 to the side edge of the main leg part 5 is set shorter than the distance from the hole 13 to the cut-and-raised piece 15 in the auxiliary leg part 6, when the auxiliary leg part 6 is attached, 3
As shown in the figure, if the shaft 5 is inserted into the hole 13 with the auxiliary leg section 6 crossing the main leg section 5, the cut and raised pieces 14, 1
5 does not get in the way, and the main leg part 5 and the auxiliary leg part 6
and can be superimposed so that they are in contact with each other.

In this fixed state, the lower end of the auxiliary leg portion 6 is located further below the lower end a of the main leg portion 5, and thereby the leg portion of the yoke 3 is extended.

No special tools are required for this extension work.

Note that when the auxiliary leg portion 6 is rotated until its upper end C engages with the cut-and-raise piece 14, if it is necessary to restrain its rotational position, the surface of the cut-and-raise piece 14.15 and the auxiliary leg A projection 17 is formed near the upper end C of the portion 6 and a recess 18 is formed on the other end of the main leg portion 5.
8, the rotational position described above can be restrained.

As detailed above, according to this invention, the main leg part that is integrated with the yoke body is shortened so that the yoke itself can be stored inside the instrument body, and the auxiliary leg part is attached to the main leg part when in use. The leg can have the required length, and the auxiliary leg can be fixed to the main leg by attaching the auxiliary leg so that it can rotate relative to the main leg and then rotating it. Since this is done by engaging the lower ends of the main legs and the upper ends of the auxiliary legs with the cut-and-raised pieces, it is extremely easy to attach them, and it is possible to attach them reliably.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing an embodiment of this invention, Fig. 2 is an exploded perspective view of the main parts, Fig. 3 is a perspective view showing the installation process, Fig. 4 is a perspective view when the installation is completed, Fig. 5 FIG. 2 is a perspective view showing the packaged state. 1... Appliance body, 2... Side wall, 3...
...Yoke, 4...Yoke body, 5...
...Main leg section, 6...Auxiliary leg section, 12...
...shaft, 13... hole, 14.15...
section.

Claims (1)

[Scope of utility model registration request] It consists of a yoke body, a main leg part integrally connected to both ends of the yoke body, and an auxiliary leg part, and a shaft is rotatable in one of the main leg part and the auxiliary leg part, and the shaft is rotated in the other. By providing a hole into which the shaft can be freely fitted, and by fitting the shaft into the hole, the auxiliary leg can be rotatably supported with respect to the main leg, and the center of rotation of the auxiliary leg can be rotated from the center of rotation of the auxiliary leg to the main leg. The distance from the center of rotation of the auxiliary leg to the lower end of the auxiliary leg is longer than the distance to the lower end of the auxiliary leg, and the lower end of the auxiliary leg In the rotated position below the lower end of the main leg, the cut and raised piece that the lower end of the main leg engages with the auxiliary leg, and the upper end of the auxiliary leg engages with the auxiliary leg. A yoke for a fluorescent lamp apparatus, wherein cut and raised pieces are formed on each of the main leg parts.