JPS6340810Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] This invention relates to a guard device for a work light.

[Background technology]

BACKGROUND OF THE INVENTION In work lights that illuminate the hands of workers in machine tools, etc., the guard needs to be detachable for lamp replacement and guard cleaning. As shown in FIG. 1, a conventional work light of this type has a pair of flanges 2 and 3 on the outer periphery of a lamp body 1, and a connecting portion 6 of a vertical bar 5 of a guard 4 is elastically connected between the flanges 2 and 3. It was something to fit into. 7 is a lamp.

However, this lamp has the drawback that the vertical bar 5 is easily deformed and rattled because it is necessary to climb over the brim 2 when attaching the guard 4. Further, when removing the guard 4, it is necessary to pull the vertical bar 5 to open it, which makes the work difficult. Furthermore, when changing the illumination position by holding the guard 4, the guard 4 rotates and is difficult to move.

[Purpose of invention]

Therefore, an object of this invention is to provide a guard device for a work light that can be firmly fixed without rotating and is easy to attach and detach.

[Disclosure of invention]

This idea involves forming a pair of brim around the outer periphery of the lamp body, forming a curved part that curves toward the center at the end of the plurality of vertical bars of the cylindrical guard, and connecting this curved part to the brim. An elastic retaining ring is inserted into the notch and positioned between the brim, and has both ends intersecting to form a knob, and is fitted into the curved portion. Therefore, the cylindrical guard can be easily removed by opening the elastic retaining ring, and the curved part of the vertical bar fits between the ribs just by pushing it in, so there is no plastic deformation. It can be firmly installed without rotating and is easy to attach and detach.

An embodiment of this invention is shown in FIGS. 2 to 5. That is, 8 is the lamp body, 9 is the lamp, and 10
11 is a flexible tube, 11 is a cylindrical guard, and 12 is an elastic retaining ring. The lamp body 8 is attached to the tip of the flexible tube 10 and has a pair of flanges 13 and 14 on its outer periphery, and a predetermined number of notches 15 are formed in the flanges 13 on the lamp connection side of the lamp body 8.
The cylindrical guard 11 has a plurality of ring rods 16a to 16.
It is formed into a cylindrical shape by welding the same number of vertical bars 17 as the notches 15 to c, one end of the vertical bars 17 extends in the axial direction beyond the ring bar 16c, and the end has a curved part facing the center. It composes 18 songs. The elastic retaining ring 12 has both ends crossed and folded back, and the folded back portion serves as a grip portion 19.

To attach the cylindrical guard 11, the end of the vertical bar 18 is pushed through the notch 15 of the collar 13, and the curved portion 18 is positioned between the collars 13 and 14. In this state, the diameter of the elastic retaining ring 12 is increased by pinching the knob 19 of the elastic retaining ring 12, and the elastic retaining ring 12 is positioned between the ribs 13 and 14, and the elastic retaining ring 12 is compressed by releasing the grip 19. It is elastically fitted into the concave portion of the curved portion 18 by radial movement.
When removing the cylindrical guard 11, perform the reverse procedure.

With this configuration, the vertical bar 17 does not deform significantly during installation, so there is no plastic deformation, and the curved portion 18 is passed through the notch 15 and locked between the flanges 13 and 14, and the curved portion 18 is attached to the elastic retaining ring 12. Since it fits into place, it can be firmly fixed without accidentally coming off. Further, since the vertical bar 17 passes through the notch 15, the guard 11 does not rotate, making it easy to move the lamp. Furthermore, the opening and closing operation of the elastic retaining ring 12 is simple because it is a knob operation. In this way, lamp replacement and cleaning can be done easily. When the lamp is not in use, it can be stored by hooking the ring of the knob 19 onto a protrusion of a machine tool.

[Effect of idea]

As described above, according to the work light guard device of this invention, lamp replacement and cleaning of the cylindrical guard can be easily performed without plastically deforming the cylindrical guard, and moreover, the cylindrical guard cannot be accidentally removed. This has the effect of being able to be firmly fixed without rotating.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of a conventional example, Fig. 2 is an exploded perspective view of an embodiment of this invention, Fig. 3 is a side view thereof, Fig. 4 is a half side view of the guard installed state, and Fig. 5 is an exploded perspective view of a conventional example. FIG. 3 is a partial perspective view of the lamp body. 8... Lamp body, 11... Cylindrical guard, 12...
...Elastic retaining ring, 13, 14...Brim, 15...
...Notch, 17... Vertical bar, 18... Curved part, 1
9...Knob section.

Claims (1)

[Scope of utility model registration request] A lamp body having a pair of flanges on the outer periphery and a predetermined number of notches formed in the rib on the lamp connection side, and a lamp body that can be fitted into the notches and has the same number of vertical bars as the notches, and has a radial center at each end. A cylindrical guard provided with a curved part that curves towards the end, and a knob part that crosses both ends, and the curved part is fitted into the curved part with the curved part inserted between the ribs. Guard device for work lights equipped with an elastic retaining ring.