JPH0438419Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a work lighting device used to illuminate a repair area in an automobile repair shop or the like.

[Prior Art] Conventionally, when an automobile is repaired at an automobile repair shop or the like, it is necessary to illuminate the work area depending on the repair area, and a portable lighting device is used for this purpose.

Conventionally, some work lighting devices of this type use an incandescent light bulb as a light source, and the area around the incandescent light bulb is covered with a net-like protective member. However, since such incandescent light bulbs generate a large amount of heat, as the working time increases, the protective member also becomes quite hot, which may pose a danger to the worker.

Furthermore, recent work lighting devices that use fluorescent lamps as light sources have been put into practical use. Products using such fluorescent lamps do not generate much heat from the light source, so the fluorescent lamps are housed in a transparent acrylic cylindrical protective cover to prevent accidents such as damage to the fluorescent lamps during work. It is composed of In this case, a holder for holding the fluorescent lamp and a reflecting plate for concentrating light from the fluorescent lamp in a predetermined direction are provided inside the cylindrical protective cover.

[Problem to be solved by the invention] However, the problem that is provided inside the cylindrical protective cover,
The holder and the reflector are manufactured separately and then assembled and then assembled inside the protective cover, which takes time and effort, which may lead to an increase in costs. Further, when these holders and reflectors are incorporated into the protective cover, internal play may occur due to molding errors in the protective cover, which causes the fluorescent lamp to be held in an unstable state.

This invention was made in view of the above circumstances,
It is an object of the present invention to provide a work illumination device that can easily assemble a holder and a reflector into a protective cover, and can stably secure the holding state of a fluorescent lamp.

[Means for Solving the Problems] The present invention provides a reflecting plate having a protrusion formed in a gutter shape and having a protrusion in the middle part of at least one end.
A plurality of holders are integrally formed, each having a curved part in the middle to hold the fluorescent lamp and a contact part in the tip to abut against the inner surface of the protective cover, and these holders hold the fluorescent lamp. It is designed to be inserted into a transparent cylindrical protective cover together with the reflector.

[Function] According to the present invention, since the fluorescent lamp holder is integrally formed with the reflector, it is possible to simplify the work of holding the fluorescent lamp in the holder and then assembling it together with the reflector in the protective cover. In addition, the reflection plate built into the protective cover has a protrusion formed in the middle that presses against the inner surface of the protective cover, preventing rattling inside the protective cover and stabilizing the holding state of the fluorescent lamp. I'm making it a thing. Further, the fluorescent lamp holder has its abutting portion at its tip abutted against the inner surface of the protective cover, so that the holder is squeezed inward, making it possible to prevent the fluorescent lamp from shifting in the axial direction.

[Example] An example of the present invention will be described below with reference to the drawings.

FIG. 1 is a partial sectional view of the same embodiment. In the figure, reference numeral 1 denotes a transparent cylindrical protective cover, and a so-called twin-type fluorescent lamp 2 in which two fluorescent tubes are arranged side by side as a light source is incorporated into this protective cover 1.

In this case, the fluorescent lamp 2 is incorporated into the protective cover 1 while being held by a holder 4 integrally formed with the reflecting plate 3. Here, the reflective plate 3 is made of, for example, polycarbonate, which is highly elastic and resistant to impact. As shown in FIG. 2, the reflecting plate 3 is formed in the shape of a gutter, and a pair of slits 31, 31 are formed at a predetermined interval in the middle part of one end of the reflecting plate 3.
A protrusion 33 is formed at a portion of the protrusion 32 that is sandwiched between. Further, two pairs of holders 4 are integrally formed on such a reflecting plate 3 at a predetermined interval in the axial direction thereof. In this case, each pair of holders 4 has a curved portion 41 that bulges outward at the intermediate portion thereof, and also forms a protrusion 42 against the inner surface of the protective cover 1, and further has a tip portion that abuts against the inner surface of the protective cover 1. A contact portion 43 is formed. Note that the notch 341 of the side wall 34 formed at the other end of the reflection plate 3 is
This is an attachment part for a lighting switch (not shown) of the fluorescent lamp 2.

Then, the fluorescent lamp 2 is held by two pairs of holders 4 integrally formed with such a reflecting plate 3 and inserted into the cylindrical protective cover 1. In this case, as shown in FIG. 3, the reflective plate 3 is brought into contact with the inner surface of the protective cover 1, but the projection 3 at the middle part of one end
3 comes to be pressed against the inner surface of the protective cover 1 due to the warpage of the protruding piece 32. Thereby, even if the curved surface inside the protective cover 1 is distorted due to a molding error or the like, the intermediate portion of the reflector 3 can be reliably brought into contact with the inner surface of the protective cover 1 without floating up. Furthermore, the two pairs of holders 4 hold the fluorescent lamp 2 with their outwardly bulging curved portions 41, and have abutting portions 43 at their tips abut against the inner surface of the protective cover 1. As a result, the holder 4 is squeezed inward to hold the fluorescent lamp 2. Thereby, even if there is a variation in the diameter of the fluorescent lamp 2, this can be absorbed and the fluorescent lamp 2 can be held securely. In this case, the protrusion 42 of the holder 4 forms a slight gap with the inner surface of the protective cover 1, but this is because when the holder 4 tries to extend outward due to the heat generated by the fluorescent lamp 2, the protrusion 42 of the holder 4 forms a slight gap with the inner surface of the protective cover 1. The holding force of the fluorescent lamp 2 is prevented from decreasing.

Returning to FIG. 1, a transparent lid 5 is attached to one end of the protective cover 1 so that the light of the fluorescent lamp 2 can also be emitted from the tip. In addition, a lighting switch (not shown) is provided at the other end of the protective cover 1.
etc. are built in, and the outlet 7 is connected via the cord 6.
are connected. In this case, outlet 7 has
A lighting circuit necessary for lighting the fluorescent lamp 2 is integrated.

Therefore, in this way, the plurality of pairs of holders 4 that hold the fluorescent lamps 2 are integrally formed on the reflector 3, so that conventionally the holders and the reflector could be assembled as separately manufactured parts. Compared to the case where this is incorporated inside the protective cover, the assembly work can be simplified and costs can be reduced accordingly. Furthermore, by pressing the protrusion 33 of the intermediate portion of the reflector 3 against the inner surface of the protective cover 1, the intermediate portion of the reflector 3 can be brought into secure contact without floating up from the inner surface of the protective cover 1. 3 is assembled inside the protective cover 1, no looseness occurs, and a stable holding state of the fluorescent lamp can be ensured. Further, a curved portion 4 bulging outward of the holder 4
1 holds the fluorescent lamp 2, and in this state, the holder 4
Since the contact portion 43 at the tip comes into contact with the inner surface of the protective cover 1 and is narrowed inward, it is possible to reliably prevent the fluorescent lamp 2 from shifting in the axial direction.

Note that the present invention is not limited to the above embodiments,
It can be modified and implemented as appropriate without changing the gist. For example, in the above description, two pairs of holders 4 are integrally formed on the reflecting plate 3 at a predetermined interval, but a structure having two or more pairs of holders may also be used.
Further, the reflecting plate 3 may be one in which the side surface on which the fluorescent lamp 2 is held is plated to enhance the reflection effect.

[Effect of the invention] According to the invention, a curved part for holding the fluorescent lamp is formed in the middle part of the reflecting plate, which is formed into a gutter shape and has a protrusion in the middle part of at least one end. At the same time, a plurality of holders are integrally formed, each of which has a contact part that comes into contact with the inner surface of the protective cover at the tip, and the fluorescent lamp is held in this holder and inserted into the transparent cylindrical protective cover together with the reflector. This simplifies the process of holding the fluorescent lamp in the holder and assembling it together with the reflector inside the protective cover, thereby reducing costs. Since the protrusion of the protrusion formed in the middle of the reflector plate is pressed against the inner surface of the protective cover, it is possible to prevent the reflector plate from wobbling inside the protective cover, making it possible to stabilize the holding state of the fluorescent lamp. Furthermore, since the abutting portion of the tip of the fluorescent lamp holder can be brought into contact with the inner surface of the protective cover and the holder can be squeezed into the inner surface, it is possible to reliably prevent the fluorescent lamp from shifting in the axial direction.

[Brief explanation of the drawing]

Fig. 1 is a side view showing one embodiment of the present invention, Fig. 2 is a perspective view showing a reflector and a holder used in the same embodiment, and Fig. 3 is a cylindrical protective cover of the same embodiment. FIG. 3 is a sectional view showing a state in which a fluorescent lamp is incorporated. DESCRIPTION OF SYMBOLS 1...Protective cover, 2...Fluorescent lamp, 3...Reflector, 32...Protrusion, 33...Protrusion, 4...Holder, 41...Curved portion, 42...Protrusion, 43...Abutment Part, 5... Lid part, 6... Cord, 7... Outlet.

Claims (1)

[Scope of utility model registration request] A transparent cylindrical protective cover, a fluorescent lamp, a reflecting plate formed in the shape of a gutter and having a protrusion in the middle part of at least one end, and a plurality of pairs integrally formed with this reflecting plate and having the above-mentioned light in the middle part. a holder having a curved portion for holding the fluorescent lamp and a contact portion formed at the tip thereof to abut against the inner surface of the protective cover; A work lighting device characterized in that it is inserted into the protective cover.