JPS642325Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a hanging lighting fixture that is provided with a shade that is detachably hinged to a top plate and is used while being suspended from a ceiling.

For hanging lighting equipment that is used by hanging from the ceiling, and whose shade is hinged to the top plate and can be attached and removed from the top plate, it is necessary to hang it from the ceiling when replacing the bulb or cleaning. The shade is opened by releasing the locking state between the shade and the top plate while being lowered. FIG. 1 is a diagram showing a hanging state of a conventional hanging lighting fixture in which a shade is attached and detached as described above. In the figure, reference numeral 1 denotes a shade hinged to a top plate (not shown) with a hinge part 3, and reference numeral 2 denotes a lighting fixture main body housing projecting from the center of the top plate. This hanging lighting fixture is suspended from the ceiling part 6 by two hanging fittings 4 whose ends are fixed to the above-mentioned top plate, and the lighting fixture main body storage part 2
Electrical connection is made by hooking a hanging ceiling connected to a more extended cord 5 to a hanging ceiling on the ceiling part 6. The shade 1 is locked to the top plate during use. However,
When the locking state between the shade 1 and the top plate is released while it is suspended from the ceiling part 6 as described above, the shade 1 is supported by the hinge part 3, so it is shown by the two-dot chain line in Fig. 1. It sways greatly. Therefore, there is a risk that the swinging shade 1 may collide with people or objects around the lighting equipment, which poses a safety problem. In addition, in order to prevent it from swinging, it is necessary to open the shade while holding it by hand, which makes it inconvenient to handle. Furthermore, as shown in Figure 2, if the distance between the two hanging fittings 4 is narrowed, the top plate itself will tilt when the shade 1 is opened, and a portion of the top plate will hit the ceiling 6, damaging the lighting fixture. When reducing the installation interval of the hanging metal fittings 4, it becomes necessary to make the hanging metal fittings 4 sufficiently long so that the top plate does not hit the ceiling. The problem was that the length and length could not be set freely, and the usable mounting range was limited.

In view of the above-mentioned conventional drawbacks, this invention allows the shade to be safely and smoothly attached to and removed from the top plate, and allows the installation interval and length of the hanging fittings to be freely set. To provide an insect-proof hanging lighting fixture that prevents insects from entering the shade.

This idea consists of a tension spring with one end fixed in place on the top plate, and a string with one end hooked to the other end of the tension spring and the other end extending downward through a hole formed in the top plate. The other end of the string is attached below the top plate, and the engagement receiving member is fixed to the shade, and the string is inserted below the top plate, and the string passes through the hole formed in the top plate. The present invention is characterized by comprising a washer that closes the blank space formed when the washer is pressed, and a coil spring that biases the washer upward.

Embodiments of this invention will be described below with reference to the drawings.

Fig. 3 is a sectional view of an insect-proof hanging lighting fixture that is an embodiment of this invention, Fig. 4 is an enlarged sectional view of the main part showing the state in which the washer etc. are locked when the shade is locked, and Fig. 5 is a sectional view of the main part showing the locking state of the washer etc. A perspective view of the attached engagement receiving member is shown.

The shade 7 is held at one end by a wire rod 10 rotatably attached to a mounting bracket 9 fixed to the top plate 8, and at the other end by a movable bracket (not shown) attached to the top plate 8 so as to be slidable in the horizontal direction. to lock it to the top plate 8. The shade 7 is made of glass and has a flat pot-like shape as a whole. An edge 7a is provided around the upper opening, the end surface of which comes into close contact with a packing 11 fixed to the lower surface of the top plate 8 when the shade is engaged.
As shown in FIG. 4, an L-shaped engagement receiving member 12 is fixed to a part of the edge 7a with screws 13. As shown in FIG. 5, the engagement receiving member 12 has an S ring 14 hooked onto a cut-and-raised portion 12a. One end of the S ring 14 is hooked to the other end of a tension spring 15, one end of which is fixed to a proper position on the top plate 8, and a string 16 extends downward through a hole 8a formed in the top plate. The other end is caulked with a sleeve 17. Further, washers 18a, 18b and a coil spring 19 are inserted through the string 16 below the top plate 8. The washer 18a is
The washer 18b is a coil spring 19 that urges the washer 18a upward to close the blank space formed when the string 16 passes through the hole 8a formed in the top plate 8 to prevent insects from entering. This is to hold the lower end of the. The top plate 8, which also serves as a reflector for the light source, is a circular plate having a diameter larger than the diameter of the opening of the shade 7, and the peripheral edge 8b is bent vertically downward over the entire circumference. A ballast storage part 20 is protruded from the center of the top plate 8, and a cord 21 connected to a hook ceiling on the ceiling is pulled out from the center of the ballast storage part 20. In addition, hanging metal fittings 2 attached to the top surface of the ballast storage part 20 at two locations are also included.
2, the entire lighting fixture is suspended from the ceiling by being hooked to a hook on the ceiling.

Next, the action of the cord of the insect-proof hanging lighting device having the above structure and the wire rotatably attached to the mounting bracket fixed to the top plate will be explained.

FIG. 4 shows the state of the string 16 when the shade 7 is locked to the top plate 8. In this state,
As shown in FIG. 3, the wire rod 10 pushes up the inner wall of the shade 7, and a movable metal fitting (not shown) supports the edge 7a of the shade 7 directly below the edge 7a of the shade 7, so that the end surface of the edge 7a of the shade 7 is It is in close contact with the packing 11 over the entire circumference. When the shade 7 is supported by a movable metal fitting (not shown), the gravity of the shade 7 does not act on the tension spring 15, so that it contracts to the minimum length and pulls the string 16. When the string 16 is tensioned by the tension spring 15 as shown in FIG. It is in close contact with the lower surface of the top plate 8 so as to close it from below. At this time, as the string 16 is pulled upward, the washer 18b that is in contact with the sleeve 17 is also pulled upward, and the coil spring 1
9 gives an austere force. The tightening force of the coil spring 19 acts as a contact force that urges the washer 18a upward, and the contact force of the washer 18a completely closes the margin of the hole 8a formed when the string 16 passes through from below. I'm here. Therefore, even if insects gather during use of this lighting fixture, they will not enter into the shade 7 through the hole 8a of the top plate 8.

Next, the operation when removing the shade 7 from the top plate 8 will be explained.

FIG. 6 shows a cross-sectional view of the shade 7 fully opened to the top plate 8. When the shade 7 is locked to the top plate 8 as shown in FIG. 3, the wire rod 10 pushes up the inner wall of the shade 7, and
Since a movable metal fitting (not shown) at the opposing portion supports the area directly below the edge 7a, the end face of the edge 7a of the shade 7 is in close contact with the packing 11 over the entire circumference. This third
When the movable metal fitting (not shown) is slid inward in the horizontal direction from the state shown in the figure, one side of the shade 7 is released. When the shade 7 is unlocked, a shared load is applied to one side of the shade 7 on the string 16 hooked to the engagement receiving member 12 by the S ring 14. When the load shared by the shade 7 is applied to the string 16, the tension spring 15 stretches, so that the edge 7 that was in close contact with the packing 11
The end face a is separated and the shade 7 is gradually lowered. on the other hand,
When the shade 7 is tilted by releasing the movable metal fitting (not shown), the wire 10 is moved by the coil spring 9a.
It gradually rotates downward against the upward biasing force. When the wire rod 10 begins to rotate downward and the locking portion with the shade 7 is lowered, the entire shade slides sideways and is caught on the hook 7b. Sade 7
Even if it is hooked on the protrusion of the hook 7b, the tip of the wire 10 will continue to move until the moment due to the rotational restoring force of the coil spring 9a and the shared load of the shade 7, one of which is supported by the string 16, is balanced. It rotates downward and becomes as shown in Figure 6.

As shown in the enlarged view in FIG. 7, when the rotation of the wire rod 10 on which a part of the hooking fitting 7b is hooked stops and the lowering of the string 16 stops, the shade 7 is fully opened to the top plate 8. That means that. In other words, the shade 7 is attached to the top plate 8 to the extent that there is no problem in replacing the fluorescent light etc. attached to the lower part of the top plate 8.
located far away from. In this state, you can replace the fluorescent light, parts, etc., and clean the inside.

To release the engagement state between the shade 7, the wire rod 10, and the string 16, remove the S ring 14 hooked on the engagement receiving member 12, then support the shade 7 by slightly lifting it, and hook the wire rod 10. This is done by removing it from the metal fitting 7b. Engage the S ring 14 with the engagement receiving member 12
When removed, the string 16 is pulled upward by the tensile force of the tension spring 15, and the washer 18a is brought into close contact with the top plate 8 in the same way as when the shade 7 is locked. When the shade 7 is removed from the wire 10, the wire 10 is pulled upward due to the upward biasing force of the coil spring 9a, and the vicinity of the tip abuts the end surface of the peripheral edge 8b of the top plate 8.

Next, the operation until the removed shade 7 is locked to the top plate 8 will be briefly explained.

When attaching the removed shade 7 to the top plate 8, first attach the S ring 1 to the cut-out portion 12a of the engagement receiving member 12.
4, and wire rod 1 on the hooking fitting 7b.
Add 0 to create the state shown in Figure 6. Thereafter, the lower part of the shade 7 is supported and lifted by hand, and the end face of the edge 7a is brought into contact with the gasket 11 over the entire circumference. With the end face of the edge 7a of the shade 7a in contact with the gasket 11 over the entire circumference, a movable metal fitting (not shown) is slid horizontally outward, and the area immediately below the edge 7a is supported by the movable metal fitting. Then, as shown in FIG. 3, one side of the shade 7 is locked with a movable metal fitting,
The other end is locked with the wire rod 10, and the attachment to the top plate 8 is completed.

As described above, according to this invention, one end of the tension spring is fixed to a proper position on the top plate, one end is hooked to the other end of the tension spring, and the other end is passed through a hole formed in the top plate. The string extends downward, the other end of the string is attached below the top plate, and the engagement receiving member is fixed to the shade, and the string is inserted through the string below the top plate and formed on the top plate. It is equipped with a washer that closes the blank space that is formed when the string passes through the hole that is attached, and a coil spring that biases this washer upward, so that it can prevent the sudden movement of the shade that occurs when the movable metal fitting is unlatched. It is possible to suppress the recoil force,
It has extremely high workability and safety, and also has the advantage that insects will not enter the shade during use, causing a decrease in lighting efficiency. Further, since it is possible to prevent the shade and the top plate from swinging greatly, there is an advantage that the length and spacing of the hanging metal fittings are not restricted.

[Brief explanation of drawings]

FIGS. 1 and 2 are diagrams illustrating a state in which a shade of a conventional hanging lighting fixture is removed. Fig. 3 is a sectional view of an insect-proof hanging lighting device according to an embodiment of this invention when the shade is locked, Fig. 4 is an enlarged sectional view of the main parts showing the engaged state of the washer etc. when the shade is locked, FIG. 5 is a perspective view of the engagement receiving member with the string attached, FIG. 6 is a cross-sectional view of the shade fully opened to the top plate, and FIG. 7 is an enlarged view of the main part of FIG. 6. 7...Sade, 8...Top plate, 8a...Hole, 11
...Packskin, 12...Engagement receiving member, 15...
Tension spring, 16... string, 18a, 18b... wire, 19... coil spring.

Claims (1)

[Scope of Claim for Utility Model Registration] A hanging lighting fixture that is used by hanging from the ceiling and has a shade that is hinged to the top plate at one side and is locked to the top plate when in use, at an appropriate location on the top plate. a tension spring having one end fixed to the top plate; a string having one end hooked to the other end of the tension spring and the other end extending downward through a hole formed in the top plate; An engagement receiving member to which the other end of the string is attached below and fixed to the shade, and a hole formed in the top plate through which the string is inserted below the top plate. An insect-proof hanging lighting fixture comprising a washer that closes a blank space formed when the washer is penetrated, and a coil spring that biases the washer upward.