JPS5923317Y2 - Lifting device for electrical appliances - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a lifting device for electric appliances used for lighting equipment and the like.

As shown in FIG. 1, the conventional high ceiling lighting equipment is constructed by attaching an elevator 2 to the ceiling 1 and attaching a fixture mounting bracket 4 to the tip of a hanging wire 3 wound up by the elevator 2. The appliance mounting bracket 4 is configured to be able to move up and down, and a lamp 5 is screwed and fixed to the appliance attachment bracket 4. On the other hand, a contact support part 7 is provided inside a cover 6 that covers the upper part of the elevator 2 and the appliance attachment bracket 4. A contact 9 fixed to the lower surface of the contact support 7 via an insulator 8 is supplied with power via a cord 10 from an under-the-ceiling power supply line (not shown). Connect the cord 13 to the contact 12 fixed through the
Connect one end of the cord 13, connect the other end of the cord 13 to the lamp 5, press the contact 12 to the contact 9 using the wire cutting blade of the elevator 2, and enable power to be supplied from the attic power supply line to the lamp 5. By pulling down and disconnecting the contacts 9.degree. 12, the lamp 5 can be disconnected from the ceiling power supply line and the lamp can be replaced.

However, such conventional high-ceiling lighting equipment has contact point 9.
, 12 was obtained by the wire tensioning blade of the elevator 2, there was a risk that the contact pressure would be insufficient if the hanging wire 3 was stretched or if the wire tensioning was insufficient.

Therefore, an object of this invention is to provide a lifting device for electrical appliances that can prevent insufficient contact pressure.

A second high ceiling lighting fixture to which an embodiment of this invention is applied
As shown in the figure.

That is, in this lighting fixture for high ceilings, the contact support part 7 is configured to be able to move up and down within a certain range (indicated by arrow A) with respect to the cover 6, and the contact support part 7 is configured to move up and down between the contacts 9 and 12 due to its own weight. I am trying to obtain contact pressure.

In this case, the contact support part 7 is set to have a weight greater than the required contact pressure between the contacts 9 and 12, and its downward movement is restricted by the flange 6a at the lower end of the cover 6. contact 9 by lowering it below a predetermined height.
, 12 are separated.

Note that the other configurations are the same as in the first point.

As a result of this configuration, the contact pressure between the contacts 9 and 12 does not decrease even if the hanging wire 3 is stretched or the elevator 2 is insufficiently raised.

As described above, the lifting device for electric appliances of this invention consists of an elevator main body attached to the ceiling, a hanging wire wound up by the elevator main body, and a hanging wire attached to the tip of the hanging wire and attached to the top surface. an electrical appliance fixture having a power receiving contact;
Since it is provided with a contact support that can be raised and lowered to press the power supply contact provided on the lower surface of the power supply contact to the power reception contact by its own weight, it is effective in preventing a drop in contact pressure.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a conventional high ceiling lighting fixture, and FIG. 2 is a sectional view of a high ceiling lighting fixture to which an embodiment of this invention is applied. 1...Ceiling, 2...Elevator, 3...
... Suspension wire, 4... Appliance mounting bracket, 5.
...Lighting, 6...Cover, 9゜12...
····contact.

Claims (1)

[Scope of utility model registration request] An elevator main body attached to the ceiling, a hanging wire wound by the elevator main body, an electric appliance fixture attached to the tip of the hanging wire and having a power receiving contact on the upper surface,
A lifting device for an electric appliance, comprising a contact support that can be raised and lowered to press a power feeding contact 4 provided on the lower surface of the appliance to the power receiving contact by its own weight.