JPH0320901A - Spotlight lighting equipment - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] [Purpose of the invention] (Industrial application field) The present invention relates to a spotlight type lighting device.

(Prior art) This type of lighting equipment is equipped with a bowl-shaped reflecting mirror inside a cylindrical shade, and the opening of this reflecting mirror faces the inner peripheral part of the opening of the shade, and the focal point inside the reflecting mirror is A lamp is provided in the shade, and the light from the lamp is reflected by a reflecting mirror and radiated forward from the opening of the shade. In order to effectively radiate the light from the lamp in front of the shade, it is necessary to place the lamp precisely at the focal point inside the reflecting mirror, and for this purpose an adjustment mechanism is required to move the lamp forward and backward in its axial direction. is provided.

(Problem to be Solved by the Invention) However, in the past, when the adjustment mechanism moves the lamp forward and backward in its axial direction to place it at the focal point of the reflecting mirror, the lamp deviates from the central axis of the reflecting mirror.
As a result, it sometimes becomes difficult to accurately position the lamp at the focal point of the reflecting mirror.

This invention was made with attention to these points, and provides a spotlight-type lighting device that allows the lamp to move forward and backward at all times properly and smoothly, and to place the lamp precisely at the focal point of the reflective lamp. The purpose is to provide the following.

[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above object, the present invention provides a socket fixture in the main body of a lighting fixture, attaches a socket to the socket fixture, and attaches a socket to the socket. A lamp is mounted, the lamp is placed inside a bowl-shaped reflecting mirror, and the light from the lamp is reflected by the reflecting mirror and radiated in front of it, wherein a fitting opening is formed in the main body. , the socket fitting is slidably inserted into the fitting opening, an adjustment mechanism is provided between the socket fitting and the main body to move the socket fitting forward and backward in the direction of the socket; A guide mechanism is provided between the socket fixture and the main body to guide the forward and backward movement of the socket fixture.

(Function) When moving the socket fixture back and forth to place the lamp at the focal point of the reflecting mirror, the socket fixture is guided by the guide mechanism and moves smoothly parallel to the central axis of the reflecting mirror. The lamp can always be accurately placed at the focal point of the reflecting mirror.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

The first embodiment is shown in Figs. 1 and 2. In the figures, 1 is a support plate attached to the ceiling of the room, and a metal hanging vibrator 2 is fixed to the center of the lower surface of this support plate 1. A main body 4 of the lighting fixture is attached to the lower end of the hanging vibe 2 via a joint 3.
It is possible to change its posture in various ways by rotating it horizontally and vertically as appropriate.

The main body 4 is formed into a disk shape, and a fitting hole 7 is bored in the center thereof, and on opposite side edges of the fitting hole 7, there are holes protruding from one side of the main body 4 so as to face each other. Guide walls 8, 8 are integrally formed, and a U-shaped bridge 9 is provided between both edges of the fitting port 7, protruding from one side of the main body 4 and spanning the fitting port 7. . Then, the socket fitting 10 is slidably inserted into the fitting opening 7,
An adjustment screw 11 constituting an adjustment mechanism is inserted from the end surface of the bridge 9 to one end surface of the socket fixture 10, and a stopper 12 is attached to the tip of the adjustment screw 11 to prevent it from coming off.

A socket 13 is attached to the other end surface of the socket fixture 10, and a high-intensity lamp 14 is attached to this socket 13. The adjusting screw 11 is screwed into the socket fitting 10, but is supported by the bridge 9 in a state where it can rotate freely and cannot move in the axial direction. By turning the socket fixture 10, the socket fixture 10 moves forward and backward along its axial direction.

Ribs 17, 17 are integrally formed on the outer surfaces of both side surfaces of the socket fixture 10 and protrude along the longitudinal direction, and guide grooves corresponding to the ribs 17, 17 are formed on the inner surfaces of the guide walls 8, 8. 18.18 is formed and the socket fitting 10
The ribs 17, 17 are slidably engaged with the guide walls 18, 18 with both side surfaces thereof in contact with the guide walls 8, 8, thereby guiding the forward and backward movement of the socket fitting 10. Machine purchasing is configured.

The main body 4 has a cylindrical shade 2 made of aluminum alloy, etc.
1 is attached, and this shade 21 allows the lamp 14 to be
The outer circumferential side of is covered. The end surface on the front end side of the shade 21 is open, and a bowl-shaped reflecting mirror 23 is inserted into the shade 21 from this opening 22. The lamp 14 is arranged inside this anti-11 mirror 23, and the lamp 14 is arranged inside the anti-11 mirror 23. A flange 24 is integrally formed around the periphery of the opening on the front end side of the mirror 23. Further, a plurality of support protrusions 25 are integrally formed on the inner circumferential surface of the shade 2l so as to protrude uniformly along the circumferential direction thereof. A mounting groove 26 is formed on the inner circumferential surface of the opening 22 of the seventh guard 21, adjacent to the flange 24 of the reflecting mirror 23 and continuous along the circumferential direction of the opening 22.

The back surface of the flange 24 of the reflecting mirror 23 is in contact with and supported by the tip end side of each of the support protrusions 25.
In addition, the restraining ring 2 can be expanded freely when it is installed.
7 is attached, and this retaining ring 27 holds the reflecting mirror 2.
The front surface of the flange 24 of No. 3 is pressed.

Further, on the inner circumferential surface of the opening 22 of the shade 21, a plurality of protrusions 30 are uniformly formed integrally and integrally along the circumferential direction, and the inner surface of the protrusions 30... Engagement grooves 31 are formed along the circumferential direction of the shade 21. A cylindrical front cover 32 is provided on the inner circumferential side of the opening 22 of the shade 21, and hemispherical engagement grooves corresponding to the engagement grooves 31 are formed on the outer circumference of the front cover 32. Engagement protrusions 33... are integrally formed to protrude, and these engagement protrusions 33... are connected to each of the engagement grooves 31...
As a result, the front cover 32 is fixed to the shade 21 with its rear opening edge in close contact with the front surface of the flange 24 of the reflecting mirror 23. Also, front cover 3
A lamp cap 37 is supported at the opening on the rear end side of the lamp 2 via a support 36, and the tip of the lamp 14 is covered by the lamp cap 37.

On the other hand, a lid cover 42 is attached to the rear end of the shade 21, and the main body 4 is covered and hidden by this lid cover 42. An operation port 43 is formed in the lid cover 42 so as to face the adjustment screw 11.

Note that a power cord (not shown) is led out from the ceiling of the room, and this power cord is connected to the socket 13 through the hanging vibrator 2.

In such a spotlight-type lighting device, when adjusting the lamp 14 so that it is placed at the focal point of the reflecting mirror 23, first insert a driver into the inside of the lid cover 42 through the operation port 43, and use this driver to adjust the lamp 14. Rotate the screw 11. By this rotation operation, the socket fitting 10
moves forward and backward in its axial direction, and this operation places the lamp 14 at the focal point of the reflecting mirror 23. At this time, both sides of the socket fixture 10 are in surface contact with the guide walls 8, 8,
In addition, since the ribs 17, 17 protruding from both sides of the mirror 23 fit into the guide grooves 18, 18 formed in the guide wall 8.8, the anti-n=t mirror 23 is prevented from inadvertently tilting. The lamp 14 moves forward and backward parallel to the central axis line and smoothly, so that the lamp 14 does not deviate from the central axis line of the reflecting mirror 23, and the lamp 14 can always be precisely placed at the focal point of the reflecting mirror 23.

3 and 4 show a second embodiment, in which a guide member 45 is attached to one end surface of the socket fixture 10, and this guide member 45 has a pair of guide side plates 46, 46 facing each other and spaced apart from each other. The bridge 9 of the main body 4 is interposed inside the guide side plate 46.46, and both side edges of the bridge 9 contact the inner surface of the guide side plate 46.46, and the bridge 9 and the guide member 45, and a subring 4 that elastically presses these to opposite sides.
7 is provided.

Even in such a configuration, the guide side plates 46 46
The guide action of the bridge 9 prevents the socket mount 10 from inadvertently tilting, and the socket mount 10 smoothly moves forward and backward parallel to the central axis of the reflecting mirror 23, so that the lamp 14 always accurately aligns with the reflecting mirror. It is placed at the focal point of 23.

[Effects of the Invention] As explained above, according to the present invention, a fitting opening is formed in the main body of a lighting device, a socket fitting is slidably inserted into the fitting opening, and the socket fitting and the main body are connected. An adjustment mechanism for moving the socket fitting forward and backward in the axial direction is provided between the socket fitting, and a guide mechanism is provided between the socket fitting and the main body to guide the forward and backward movement of the socket fitting. When moving the fixture back and forth to place the lamp at the focal point of the reflecting mirror, the socket fixture is moved smoothly parallel to the center axis of the reflecting mirror to ensure that the lamp is always accurately positioned at the focal point of the reflecting mirror. This has the effect of making it possible to

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view of the entire lighting fixture showing a first embodiment of the present invention, Fig. 2 is a perspective view of its main parts, and Fig. 3 is a main part showing a second embodiment of the invention. The perspective view and FIG. 4 are also sectional views.

Claims (1)

[Claims] A socket fitting is provided in the main body of the lighting equipment, a socket is attached to this socket fitting, a lamp is attached to this socket, and this lamp is placed inside a reflecting mirror formed in a bowl shape, and the light from the lamp is In the device in which the reflection is reflected by the reflecting mirror and radiated forward, a fitting opening is formed in the main body, the socket fitting is slidably inserted into the fitting opening, and the socket fitting is inserted between the socket fitting and the main body. A spot characterized by having an adjustment mechanism for moving the socket fitting forward and backward in the axial direction thereof, and a guide mechanism for guiding the forward and backward movement of the socket fitting between the socket fitting and the main body. Light type lighting equipment.