JPH02312210A - Ballast for discharge lamp - Google Patents

Abstract

PURPOSE:To make it possible to easily restore the mutual position between the main body of a stabilizer and a mounting plate by a method wherein a mounting piece is bent and locked to a notch through the intermediary of an elastic material for vibration dumping, and the gap between a stopper, provided on either of a base and the mounting plate, and the end part opposing thereto, is specifically prescribed. CONSTITUTION:A plurality of notches 2 are provided on the base 1 of the main body A of a stabilizer, a vibration dumping elastic material 3 is brought into contact with the notch 2, and a mounting piece 5, which is provided on a mounting plate 4 through the vibration absorbing elastic material 3, is bent and attached to the notch. Also, a stopper 6, which is engaged to the base 1, is provided on the side A of the stabilizer main body of the mounting plate 4, and the distance (a) between the stopper 6 and the base 1 is provided smaller than the thickness (a) of the side edge protruding from the mounting piece of the vibration dumping elastic material 3. As a result, even when the strong force (Fx) such as impulse and the like is given to the mounting plate 4, for example, the mounting plate 4 returns to its original state by the elasticity of the vibration dumping elastic material 3 when the Fx is removed.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention provides a ballast for a discharge lamp in which a ballast main body and a mounting plate are attached through a vibration-proofing elastic body to prevent positional displacement. It is something that will take place.

[Conventional technology]

In order to prevent the vibration of the ballast from being transmitted to the lighting equipment, a ballast for a discharge lamp, in which the ballast body is attached to a mounting plate via a vibration-proofing elastic body, has conventionally been constructed as shown in Figure 5. The ballast main body, in which the iron core and the winding are combined and fastened to the base 1 with an #ir plate, is interposed between the ballast body and the mounting plate 4 through a plurality of vibration-isolating elastic bodies 3, as shown in FIG. It was installed by.

[Problem to be solved by the invention]

In the above conventional technology, the pressing part 9 of the base 1 of the stabilizer main body A, which is pressed against the mounting plate 4, is pressed against the base 1 by the mounting pieces 5 provided on the mounting plate 4 via the vibration isolating elastic bodies 3 respectively. Since they are formed in a parallel straight line, if a force such as an impact is applied in the X direction shown in Fig. 6, the positions of the 1-dimensional plate 4 and the base I will shift, causing the original There was a problem with not coming back.

An object of the present invention is to obtain a ballast for a discharge lamp in which the ballast main body is attached to a mounting plate via an anti-corrosion elastic body without causing displacement of the ballast main body due to impact or the like. .

[Means to solve the problem]

The above purpose is to provide a notch in either the base or the mounting plate, provide a mounting piece on the other side that engages with the notch via an elastic body for vibration isolation, and also provide a notch in either the base or the mounting plate. The distance between the stopper provided on the vibration isolating elastic body and the other base or mounting plate is
! This is achieved by making the ll smaller than the edge thickness.

[Effect]

As mentioned above, if the stopper is notched, it is sufficient to provide it on either the base or the mounting plate, but for the sake of simplicity, in the case where the notch is provided on the base and the mounting piece and stopper are provided on the mounting plate. I would like to talk about this.

Because the distance between the stopper provided on the mounting plate and the end of the base was made smaller than the thickness of the side edge of the vibration-isolating elastic body installed in the notch, the position of the base may shift due to impact or other force applied from the outside. Even if it comes into contact with the stopper of the mounting plate, the side line of the vibration-isolating elastic body located between the notch in the base and the mounting piece provided on the mounting plate will not be completely compressed and will remain within the elastic limit. By limiting the deformation to , the relative position between the base and the mounting plate returns to its original state due to the elastic restoring force of the vibration isolating elastic body.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a sectional view showing an embodiment of a ballast for a discharge lamp according to the present invention, and FIG. External force Fx on the example Suku It board
3(a) is a perspective view showing the elastic body for vibration isolation, FIG. 3(b) is a sectional view showing the state in which the elastic body for queen vibration isolation is attached, and FIG. It is a perspective view which shows another example of a vibration elastic body.

In Figure 1, what is the l\-space 1 of one ballast A? !
A vibration-proofing elastic body 3 is brought into contact with the notch 2, and a mounting piece 5 provided on the mounting plate 4 is bent into the notch 2 through the vibration-proofing elastic body 3. The distance between the stopper 6 and the base is increased by 1L. Since fa is made smaller than the thickness a' of the side edge of the vibration isolating elastic body 3 that protrudes from the mounting piece, a large force Fx such as an impact is applied to the mounting plate 4 from the left side of FIG. 1, for example. In this case, as shown in FIG. 2, even if the side surface of the base 1 and the side surface of the stopper 6 come into contact, the peeling of the vibration isolating elastic body 3 will not be completely crushed, and the elastic By keeping the deformation within limits, when a large force Fx such as an impact is removed, the elastic body 3 returns to its original state as shown in FIG. 1.

Note that it goes without saying that the same effects as in the above embodiment can be obtained with respect to other silk fittings in the notch 2, the mounting piece 5, the stopper 6, the base 1, and the mounting plate 4. In addition, the thick part 61 extending along the mounting plate 4 to the lower part of the base 1 at the base of the stopper 6 has a gap in the fall impact in the y direction shown in FIG. This is to avoid excessive pressure on the bottom part 31 of the vibration isolating elastic body 3 sandwiched between the mounting plate 4 and the base 1, and as shown in FIG. distance ``b,''
The thickness is smaller than the thickness b' of the bottom portion 31. Here, the distance a and the distance 1 are required for vibration isolation between the base 1 and the handle 1 plate 4.

A specific example of the elastic body 3 for defense installation is shown in FIGS. 3(a) and 3(b).
). (a) shows the state before mounting, and (b) shows the state in which it is mounted. That is, the mounting plate 4 and the base l are connected at positions corresponding to the notches 2 provided in the base l.
The above-mentioned vibration isolating elastic body 3 is sandwiched between the above-mentioned notch 2
Inward from bending part 8! +t, the mounting piece 5 is bent through the groove 7 of the vibration isolating elastic body 3, and the stabilizer main body A is fixed to the mounting plate 4. No. 4 (2) is a diagram showing another example of the vibration isolating elastic body 3 used in this embodiment, and this example is suitable for use by attaching it to the base 1 (11) in advance when assembling the stabilizer. The above-mentioned vibration-proofing elastic body is formed by molding an elastic material with high restorability and vibration absorption, similar to the one shown in FIG.

The ballast for discharge lamps shown in this example can be used even if an external force such as an impact is applied and the mounting plate collides with the base of the ballast body.
Any deformation of the vibration isolating elastic body 3 remains within the elastic limit, and the relative position between the base, that is, the stabilizer body A, and the mounting plate 4 can be returned to its original state.

〔Effect of the invention〕

As described above, the ballast for a discharge lamp according to the present invention is a ballast for a discharge lamp in which a ballast main body, in which an iron core and a winding are combined and fastened to a base, is attached to a mounting plate via an elastic body for vibration isolation. A notch is provided in either the base or the mounting plate, a mounting piece is provided in the supporting mounting plate or the base corresponding to the notch, and the mounting piece is inserted into the cutout through the vibration-isolating elastic body. The above-mentioned vibration isolating elastic body bends and engages the notch, and the above-mentioned vibration isolating elastic body fills the gap between the stopper with the above-mentioned base or the stopper provided on either one of the plates and the opposite end of the base or mounting plate. By making the side that protrudes from the mounting plate smaller than the thickness of the ballast, vibrations generated by the ballast body are prevented from being transmitted to the lighting equipment via the mounting plate, and it is also prevented from being subjected to shocks from the outside. Even if the stabilizer body contacts the stopper of the mounting plate, the vibration-isolating elastic body only deforms within its elastic limit, so the mutual position of the stabilizer body and the mounting plate can be easily restored to its original position. It has the effect of being able to recover.

[Brief explanation of drawings]

Fig. 1 is a sectional view showing an embodiment of a discharge lamp ballast according to the present invention, Fig. 2 is a sectional view showing a state in which an external force Fx is applied to the mounting plate of the above embodiment, and Fig. 3(a) is FIG. 3(b) is a sectional view showing a state in which the vibration isolating elastic body is installed; FIG. 4 is a perspective view showing an example of a song of the vibration isolating elastic body; FIG. 5 is a perspective view showing a conventional ballast main body;
FIG. 6 is a perspective view showing a conventional ballast for a discharge lamp in which the ballast main body is attached to a mounting plate via a vibration-proofing elastic body. DESCRIPTION OF SYMBOLS 1...Base, 2...Notch, 3...Elastic body for vibration isolation, 4...1 dimension plate, 5...1 dimension piece, G...Stopper, A... - Stabilizer body. Patent applicant Hitachiguchi Sanmei Co., Ltd. Figure 2

Claims (1)

[Claims] 1. In a discharge lamp ballast, in which the ballast body, which combines an iron core and a winding wire and is fastened to a base, is attached to a mounting plate via an elastic body for vibration isolation, a notch is formed in either the base or the mounting plate. A mounting piece is provided on the other mounting plate or base corresponding to the above-mentioned notch, and the above-mentioned mounting piece is bent and locked to the above-mentioned notch via the vibration-isolating elastic body, and the above-mentioned base or mounting The gap between the stopper provided on either side of the plate and the opposing end of the base or mounting plate is made smaller than the thickness of the side edge of the vibration-proofing elastic body protruding from the mounting piece. Characteristic ballast for discharge lamps.