JPS594496Y2 - Lifting lighting device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a lifting lighting device, and its purpose is to improve the strength of a rope.

Conventionally, as shown in FIG. 1 or FIG. 2, the end of the rope 1 is connected to a drum 2 on which a rope 1 on which a lighting fixture is suspended is wound and a winding force is applied by a spring. There is a drum 2 with a hole 3 in the side wall and a knot 4 at the end of the rope 1 inserted through the hole, and the knot 4 is used to prevent the rope from being pulled out. There was a risk that the rope would be damaged or the rope knot 4 would come undone.

Also, in FIG. 2, adjacent notches 5.6 are provided in the side wall of the drum 2, and a knot 7 is provided at the end of the rope, and this knot 7 is locked inside one notch 5, and the rope is connected to the other notch 6. Some ropes are inserted into the drum and wound around the drum 2 once, and then wrapped around the first rope near the notch 6 to prevent the rope from coming off the drum. However, when an impact force acts on the rope 1, There was a risk that the entangled part of the rope would break.

The present invention has been made in view of the above points, and will be explained below based on the drawings.

3 and 4 show an embodiment of the present invention, in which a drum 9, which houses a spring 8 inside and is given a rope winding force in one direction, is shaped like a substantially pincushion and has flanged side walls 10 on both sides of the cylinder. It is made of a molded product and has two adjacent notches 11 on one side wall 10.
, 12, adjacent notches 13 and holes 14 provided on substantially opposite sides, and a plurality of positioning protrusions 15 on the outer surface, and thick protrusions around the notches 13 and holes 14. 16 are provided.

17 is a metal auxiliary plate with notches 11, 12 and positioning protrusions 1
5 and the thick convex portion 16, respectively, with a notch of 18°1.
9. Using a disc provided with a positioning hole 34 and notches 20 and 7L35, insert the positioning protrusion 15 into the positioning hole 34, and fit the thick protrusion 16 into the notch 20 and hole 35,
It is attached closely to the outer surface of the side wall 10 of the drum 9.

Note that the width of the notch 18 is slightly larger than the diameter of the rope 21.

The rope 21 has a knot 22 formed at its end, and this knot 22
into the notch 11 of the drum side wall 10 and into the notch 18 of the auxiliary plate 17, lock the knot 22 around the periphery of the notch 18, pass over the auxiliary plate 17, and insert it into the drum from the adjacent notch 12. After winding approximately half the circumference around the drum 9, it is passed through the notch 13 outward again, passing over the thick convex portion 16 and the auxiliary plate 17, and introduced into the drum through the adjacent hole 14. Wind it around the drum.

The tensile force acting on the rope 21 is first held by the friction between the bent portion of the rope 21 passed through the hole 14 and the notch 13, the drum side wall 10, and the auxiliary plate 17, and then
It is held by the frictional force at the bent part 2.

In the bending part from the hole 14 that first retains the tensile force acting on the rope 21 to the notch 13, the thick protrusion 16 formed around the hole 14 and the notch 13 is inserted into the hole 35 of the auxiliary plate 17 and the notch 20. The rope 21 is fitted into the hole 35 and the notch 20 so that the rope 21 does not touch the edges of the hole 35 and the notch 20, preventing damage to the rope 21, and preventing the rope 21 from being damaged. The side wall 10 of the drum on which the bending force is applied is reinforced by an auxiliary plate 17 provided on the outer surface, and the drum, which is not easily damaged, is covered with a case and attached to the mounting bracket 25 as shown in FIGS. 5 and 6. , the mounting bracket 25 engages with a fixing bracket 26 provided on the ceiling.

The power line 27 is connected to the lamp 30 with a curl cord 29 via a hook blade 28 provided on the fixing metal fitting 27, and the rope 21 is inserted into the curl cord 29 and connected to the lamp body with a caulking metal fitting 31 crimped at the lower end. The lamp is engaged with a support fitting 33 screwed to the lamp 32, thereby suspending the lamp.

Therefore, the lamp 30 and the fixture 26 are electrically connected to each other through the rope 21, the auxiliary plate 17, the shaft 24, and the mounting bracket 25.
The ground wire 34 is connected to the fixture 26.

The present invention is constructed as described above, in which a hole and a notch having a thick wall around the periphery are provided adjacent to each other in the side wall of the drum, and a metal auxiliary plate is provided approximately in close contact with the outer surface of the side wall. A hole and a notch are formed into which the thick part fits, and the rope is bent from the notch, passed over the auxiliary plate, and inserted into the hole.The rope is locked to the drum by the bent part, and no impact force is applied to the rope. When this happens, an inward bending force is applied to the side wall of the drum due to the bent portion of the rope, but this bending force is supported by the auxiliary plate, preventing the side wall of the drum from breaking, and the holes and notches in the auxiliary plate The circumference of the hole is covered by a thick convex portion formed on the drum, so that there is no risk of the rope touching the edge of the hole and being damaged, and the rope is securely latched to the drum.

[Brief explanation of drawings]

1 and 2 are perspective views of drums showing different conventional examples. 3 and 4 show an embodiment of the present invention, with FIG. 3 being an exploded perspective view of the drum portion, and FIG. 4 being a side view of the same. 5 and 6 are a cross-sectional front view and an enlarged front view of the lamp and rope retaining portion showing the present invention in use.

Claims (1)

[Scope of utility model registration request] In an elevating lighting device in which a lamp is suspended so that it can be raised and lowered by a rope wound around a drum to which a rope winding force is applied, a notch and a hole are provided adjacent to the side wall of the drum of the molded product, and the notch and A thick protrusion is formed on the outer surface around the hole, and a metal auxiliary plate with a hole and a cutout that fits into the thick protrusion is provided on the outer surface of the side wall in almost close contact with each other, and the rope is passed from the notch to the top of the auxiliary plate. An elevating lighting device characterized in that a rope is bent and inserted through a hole and fixed to a drum.