JPH0232139Y2 - - Google Patents

Description

[Detailed description of the invention] A. Purpose of the invention [Field of industrial application] The present invention relates to a lighting device for a display case, which is used in museums, art galleries, stores, etc. and has at least three sides made of glass plates.

[Conventional technology]

In this type of display case, an illuminator such as a spot light is installed inside the case to illuminate the displayed items.

[Problem that the invention attempts to solve]

Therefore, when performing maintenance such as adjusting the irradiation direction of the illuminator or replacing the lamp, it is extremely inconvenient to do so by opening and closing the rear wall surface through which display items are taken in or out, or an entrance/exit door provided on that surface. There were also problems such as the heat from the lamps getting trapped inside the case and damaging the displayed items.

The present invention aims to solve the above problems.

B. Structure of the invention [Means for solving the problem] This invention consists of two sides of the upper corner of the display case 1
Each corner 1 of the intersection of a, 1b and the ceiling surface 1c
A substantially triangular hole 2 is formed by cutting out aa, 1ba, and 1ca into triangular shapes, and an illuminator box 3 consisting of three sides, ie, both sides 3a, 3b, and a top surface 3c, is placed in a display case so as to close the triangular hole 2. 1, and the upper part 3 of both sides 3a and 3b of the corner of the illuminator box 3.
aa and 3ba are cut out parallel to the top surface 3c to form a heat radiation opening 4a, and a corner 3ca of the top surface 3c is formed.
is cut into a triangular shape to provide an opening 4b for controlling the irradiation direction and the like which opens facing the triangular hole 2, and a lid 6 is provided on the top surface 3c of the illuminator box so as to be openable and closable.
An illuminator hanging member 7 is attached to the back surface of the upper surface 3c of the illuminator box so that it can freely rotate horizontally about a vertical axis 8, and a socket mounting arm 9 of a lamp 5 is attached to the hanging member 7 so that it can freely rotate up and down about a horizontal axis 10. This is a lighting device for display cases.

[Effect]

Normally, as shown in Figure 3, the top surface 3c of the illuminator box 3
The lid 6 covering the display case 1 is closed, the operation opening 4b is closed, and the heat from the lamps is released to the outside of the display case 1 through the opening 4a.

When the lid 6 is opened as shown in FIG. 4, a large opening 4 is opened by the triangular operation opening 4b on the top surface 3c of the container and the heat radiation openings 4a on both sides 3a, 3b.

By inserting a finger into the opening 4 and pinching the extension part 9a of the socket mounting arm 9, the hanging member 7 is moved horizontally around the vertical axis 8, and the mounting arm 9 is lifted up and down around the horizontal axis 10, thereby removing the lamp. The irradiation direction of step 5 is adjusted from outside the display case 1.

In addition, with the hanging member 7 and the mounting arm 9 facing the corner direction of the illuminator box 3 as shown in FIG. exchange etc.

〔Example〕

The figure shows an example in which illuminators are provided at the left and right corners of the upper front of a transparent glass display case 1. Reference numeral 11 designates a stand for display items, reference numeral 12 designates an inlet/outlet thereof, and reference numeral 13 designates an opening/closing door thereof.

The illuminator box 3 is formed by, for example, bending a metal plate at right angles to form both side surfaces 3a and 3b, and a bent portion 3 at the top thereof.
The top plate 3c is fixed to 1 and 31 by spot welding or the like. Then, attach it to the corner of case 1 using adhesive or the like.

The lid 6 is formed to a size that covers the entire top surface 3c of the container box including the heat dissipation opening 4a, and is attached to one side of the top plate 3c with a hinge 14 so that it can be opened and closed. 15 is a heat insulating material such as asbestos attached to the contact surface of the lid 6 with the top plate 3c, which prevents the heat of the lamp 5 from being transmitted to the lid 6 via the top plate 3c, and prevents the heat from being transferred to the ceiling of the display case. Prevents spectators from inadvertently touching it and getting burned.
Reference numeral 16 denotes a magnet for adsorbing and holding the opening/closing lid 6 on the top plate 3c.

If a small light bulb, such as a halogen dichroic mirror, is used as the lamp 5, the illuminator box 3 can be made small, and the notches at the corners of the display case 1 are also small, so that the external appearance is not spoiled. By using a 12V power supply, the wiring can be run inconspicuously along the corner edge of case 1. 17 is a socket, and 18 is a reflective shade.

C. Effects of the invention Since the present invention has the above-mentioned configuration, maintenance such as adjusting the irradiation direction of the illumination lamp 5 and replacing the lamp can be performed from outside the display case as described in the section of the operation, making it easier to handle. Extremely convenient. Furthermore, since the heat of the lamps is not trapped inside the case 1, deterioration of the quality of the displayed items due to heat is prevented. Furthermore, since a small illumination box is attached to the upper corner of the case, it has a good external appearance.

Note that the cutout portion 1 for forming the triangular hole 2
aa, 1ba, 1ca, as shown in the fourth diagram, if the corner of each glass surface 1a to 1c is cut into a triangular shape, for example, when the corner is cut into a square, the cutout part will be cut out from the glass surface. No cracks will appear.

[Brief explanation of the drawing]

FIG. 1 is a front view of a display case equipped with the lighting device of the present invention, FIG. 2 is a plan view thereof, FIG. 3 is an enlarged perspective view of the lighting device, and FIG. 4 is the same view with the lid open. FIG. 5 is an enlarged sectional view taken along the line V-V in FIG. 4. 1 is a transparent glass display case, 1a and 1b are its sides, 1c is the ceiling surface, 2 is a triangular hole, 3 is a lighting box, 3a and 3b are its sides, 3c is the top surface, 4 is the opening, 4a is for heat radiation 4b is an opening, 5 is a lamp, 6 is a lid, 7 is an illuminator hanging member, 8 is a vertical axis,
9 is the socket mounting arm, and 10 is the horizontal axis.

Claims (1)

[Scope of Claim for Utility Model Registration] A display case whose at least three sides are made of glass plates has a substantially triangular hole formed by cutting out each corner at the intersection of both sides of the upper corner and the ceiling surface, and forming a substantially triangular hole on both sides. An illuminator box consisting of three sides, a top surface and a top surface, is attached to the outside corner of the display case so as to cover the triangular hole mentioned above, and the tops of both sides of the corner of the illumination box are cut out parallel to the top surface. In addition to forming an opening for heat radiation, a corner of the top surface is cut into a triangular shape to provide an opening for operation such as adjusting the irradiation direction, which opens facing the triangular hole, so that the lid can be opened and closed on the top surface of the illuminator box. established in
A lighting device for a display case, in which a lighting device hanging member is attached to the back surface of the top surface of the lighting box so that it can freely rotate horizontally about a vertical axis, and a lamp socket mounting arm is attached to the hanging member so that it can freely move up and down about a horizontal axis.