JPS5930999Y2 - Shield beam light bulb holder - Google Patents

Description

[Detailed description of the invention] The present invention relates to a sealed beam light bulb holder used in a multi-lamp type shadowless illumination lamp, and includes a fitting frame into which the welded part of the irradiation surface and the reflective surface of the sealed beam light bulb is fitted. A dashed line is provided on the top surface of the frame to directly or indirectly contact the welded portion, and a pressing mechanism is provided on the bottom surface of the fitting frame to press the sealed beam bulb in the insertion direction, so that the welded portion of the sealed beam bulb is always kept in contact with the welded portion. In a sealed beam bulb holder for a multi-lamp type shadowless illumination lamp in which a sealed beam bulb is fixedly held while being pressed against a dashed line of a fitting frame, one end of the linear elastic body is attached to the fitting frame as the pressing mechanism. The other end is removably latched to the fitting frame at a position opposite to the pivoting part, and the elastic force of the central part of this linear elastic body causes the irradiation surface of the sealed beam light bulb to be shielded. This device is characterized by being provided with a pressing mechanism that presses in the direction in which the beam light bulb is inserted.

Hereinafter, an embodiment of a sealed beam bulb holder in a multi-lamp type shadowless illumination lamp according to the present invention will be described based on the drawings. and a hem portion 1b having a diameter slightly larger than the diameter of the insertion portion 1a.

On the upper edge of the fitting frame 1, that is, on the upper surface of the fitting part 1a, a dashed line IC is provided over the entire inner circumference of the fitting part 1a, which comes into contact with the welding part 2a when the sealed beam light bulb 2 is fitted.

A linear elastic body 3 made of metal, resin, or the like and having elastic force is attached to the hem portion 1b at the lower end of the fitting frame 1.

The linear elastic body 3 passes through the center of the fitting frame 1 and is supported horizontally, and one end is pivotally attached to the hem portion 1b in a downward range, and the other end is attached to the pivot portion 1b. It is removably locked in a notched locking hole 1e provided in the hem portion 1b at a position opposite to.

The sealed beam light bulb 2 has an irradiation surface 2b and a reflection surface 2C.
The welded portion 2a is welded at a welded portion 2a, and the welded portion 2a is formed into a brim shape.

In addition, a plurality of abutting protrusions 2d are provided on the upper surface of the welding part 2a at balanced positions, and the welding part 2a is attached to the abutting protrusions 2d.
It comes into contact with the dashed line 1C via.

Further, 2e is a guide protrusion, 1d is a guide notch, and these stop the horizontal rotation of the sealed beam light bulb 2.
Positioned.

In the above configuration, when installing the sealed beam light bulb 2, first attach the movable end of the linear elastic body 3 to the hem portion 1b.
Remove it from the notch locking hole 1e and rotate it downward.

Then, fit the sealed beam light bulb 2 into the fitting frame 1 from below, rotate it horizontally, and insert the guide protrusion 2e into the guide notch 1d.
is inserted, and in this state, the movable end of the linear elastic body 3 that has been removed is locked in the notched locking hole 1e of the hem portion 1b.

In this fitted state, as shown in FIG. The sealed beam light bulb 2 is fixed by being pressed in the insertion direction of the beam light bulb 2.

In this case, in front of the irradiation surface 2b of the sealed beam bulb 2,
Since the linear elastic body 3 is located, a part of the irradiation light from the irradiation surface 2b is blocked by the linear elastic body 3, but the linear elastic body 3 is thin and the blocking area is small. At the same time, the irradiated light beam of the sealed beam bulb 2 is reflected by the reflective surface 2.
Since the beam becomes almost parallel due to the reflection of C, the blocking area does not increase even if the irradiation distance becomes long, and there is almost no problem in actual use.

In the above embodiment, the case where the linear elastic bodies were positioned on the center line of the irradiation surface of the sealed beam light bulb was shown, but it is also possible to use two linear elastic bodies arranged in parallel, Both expanding ends of a 7-shaped or ■-shaped elastic body are pivoted to the fitting frame, and the other end is removably locked to the fitting frame, or a linear elastic body bent into an S-shape is used. It is also possible to use a thin strip made of metal or transparent resin as the linear elastic body.

In addition, as a method of supporting the linear elastic body to the fitting frame, in addition to the method of pivoting one end and removably locking the other end, it is also possible to attach both ends to the fitting frame. In this state, the central portion of the linear elastic body can be attached so that it can be bent laterally against the elastic force so that the sealed beam bulb can be inserted into and removed from the fitting.

As shown in FIG. 4, a conventional sealed beam light bulb holder of this kind has a sealed beam light bulb 2 fitted into a fitting frame 1 similar to that described above, and a sealed beam light bulb 2 that is welded along a welded portion 2a of the sealed beam light bulb 2. A C-shaped elastic body 4 bent diagonally up and down between the lower surface of the portion 2a and the lower end portion of the hem portion 1b.
was inserted, and the welded portion 2a of the sealed beam light bulb 2 was pressed by the elastic force of the elastic body 4 generated by the reaction force from the lower end portion of the hem portion 1b.

However, in the conventional sealed beam light bulb holder configured in this way, a C-shaped elastic body bent diagonally up and down is inserted between the lower surface of the welding part and the lower end of the hem. It required considerable force and some skill to attach and detach the sealed beam light bulb, making it difficult to attach and detach the sealed beam light bulb easily and smoothly.

The sealed beam bulb holder in a multi-lamp type non-shadow illumination lamp is normally used in a state that is incorporated into the lantern casing of the multi-lamp type non-shadow illumination lamp, so when replacing the light bulb, it is necessary to With the light hanging from the ceiling, etc., I was holding down the hem 1b of the fitting frame 1 with one hand and attaching and removing the elastic body with the other hand, but at this time, a fairly large force was applied to the fitting frame 1. The applied force could sometimes shift the optical axis of the sealed beam bulb holder that holds the replaced sealed beam bulb.

Furthermore, since the elastic body used was C-shaped, bent diagonally up and down, the processing of this elastic body was complicated and required high precision, making the cost of the elastic body high. Ta.

In addition, as a conventional sealed beam holder, the welded part between the irradiation surface and the reflective surface of the sealed beam bulb is held between an upper support frame and a lower support frame, and both support frames are held together by multiple screws. There was something that stopped me.

However, in this case, even if you are replacing a single sealed beam bulb, you must loosen a few screws, remove the lower support frame and the sealed beam bulb, and then replace the new sealed beam bulb and lower support frame. Because they must be fixed to the upper support frame with multiple screws, the simple task of replacing light bulbs is particularly difficult when replacing multiple sealed beam light bulbs in a multi-beam shadowless lighting lamp suspended from the ceiling. However, it requires a lot of effort, and it is important to note that the sealed beam bulb mounting hole drilled in the multi-lamp type shadowless lighting lamp is not significantly larger than the size of the sealed beam light bulb. Since the focal point is usually set at a predetermined depth, the installation angle of each sealed beam bulb is not constant, making it even more difficult to replace the sealed beam bulb.

On the other hand, the sealed beam light bulb holder according to the present invention is constructed as described above, in which both ends of the linear elastic body are pivotally attached to the fitting frame and detachably latched, and the linear elastic body The irradiation surface of the sealed beam bulb is pressed and fixed by the elastic force in the center of the body, so when replacing the sealed beam bulb, simply move the movable end of the linear elastic body and insert it into the frame. Sealed beam bulbs can be attached and detached easily and smoothly with a single touch, without the need for force as in conventional methods, which not only helps improve the efficiency of bulb replacement work, but also especially for multi-lamp type shadowless bulbs. When replacing a plurality of light bulbs in a lighting lamp, work efficiency is significantly improved, and the optical axis will not be distorted due to force being applied to the fitting frame of the sealed beam light bulb holder.

Furthermore, the elastic body is linear and does not have a complicated shape as conventionally used, and precision is not required, resulting in low cost.

In this way, the sealed beam light bulb holder according to the present invention is
This has unprecedented practical effects.

In addition, as shown in the example, when one linear elastic body is used as the linear elastic body and the linear elastic body is located on a line passing through the center of the irradiation surface of the shield beam light bulb, the shield The effect of making it easy to attach and detach the beam bulb, and the effect of reducing the cost of the elastic body are attractive, and when replacing the sealed beam bulb, it is possible to resist the elasticity of the elastic body without having to engage or detach the movable end of the elastic body. It also has the operational simplicity of being able to push it sideways and replace the light bulb. teeth,
The linear elastic body with as little pressing area as possible has the effect of preventing the light bulb from swinging and stabilizing the installed state.

[Brief explanation of drawings]

1 to 3 are a perspective view, a sectional view, and a bottom view showing an embodiment of a sealed beam light bulb holding device according to the present invention, and FIG. 4 is a bottom view showing a conventional device. 1...Inset frame, 1a...Inset part, 1C
...Dotted line, 1e...Notch locking hole, 2.
... Sealed beam light bulb, 2a ... Welded part, 2b ... Irradiation surface, 2C ... Reflection surface, 3 ... Linear elastic body .

Claims (3)

[Scope of utility model registration request] (1) On the upper surface of the fitting frame into which the welded portion of the irradiation surface portion and the reflective surface portion of the sealed beam light bulb is inserted, a dashed line that directly or indirectly abuts the welded portion is provided, and on the lower surface of the fitting frame. , in a sealed beam bulb holder for a multi-lamp shadowless illumination light provided with a pressing mechanism for pressing a sealed beam bulb in a fitting direction, one end of a linear elastic body is pivotally attached to a fitting frame as the pressing mechanism, A pressing mechanism is provided, the other end of which is removably latched to a fitting frame at a position facing the pivot portion, and which presses the irradiation surface of the sealed beam light bulb by the elastic force of the central portion of the linear elastic body. A sealed beam light bulb holder for a multi-lamp type shadowless illumination lamp characterized by: (2) A claim for utility model registration characterized in that one linear elastic body is used as the linear elastic body, and the linear elastic body is located on a line passing through the center of the irradiation surface of a sealed beam light bulb. A sealed beam light bulb holder in a multi-lamp shadowless illumination lamp according to scope (1). (3) The utility model registration claim (1) is characterized in that the linear elastic body is an elastic body bent into an appropriate shape, such as approximately ■-shape, Y-shape, or S-shape. Sealed beam bulb holder for multi-lamp shadowless lighting.