JPH0113292Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial field of application) This invention is a desk that is installed under an attached member located above the desk, such as a shelf of a bookshelf placed on the desk, in order to illuminate the desk. This invention relates to retractable lighting equipment.

(Prior art and its problems) Conventionally, desk lighting fixtures installed under the shelves of bookshelves placed on desks have been divided into two types: those installed directly under the shelves, etc.; There was also one that was installed so as to extend from the top toward the desk.

However, in the case of lighting fixtures equipped with light bulbs such as incandescent bulbs that are installed directly under shelves etc., the distance from the lighting fixture to the desk is long and the lighting becomes dim.
It was not possible to change the position of the lighting fixtures to provide appropriate lighting, and there were problems such as being left in the dark. In particular, unlike straight tube fluorescent lights, incandescent bulbs and other light bulbs are point light sources, so they often leave people in the dark while using them.

On the other hand, in the case of a lighting fixture that is installed so as to extend from the bottom of a shelf toward the desk, the distance to the desk is short;
Although the lighting is brighter, such lighting equipment remains extended from the bottom of the shelf etc. even when it is not illuminated, so if you put something under the shelf etc., this lighting equipment is not suitable. There was also the problem that it got in the way and spoiled the appearance.

Furthermore, there have been desks in the past where straight tube fluorescent lights were used by rotating or sliding them from under the shelf to the front of the top plate (Utility Model Publication No. 77338, 1983;
No. 25861). However, since the light source is a straight tube type fluorescent lamp, if this method is used as is for point light source light bulbs such as incandescent bulbs, it may become dark.

This idea was made to solve the above problem, and when lighting a desk, the lighting equipment can be extended from under the shelf etc. towards the desk to provide sufficient illumination. The object of the present invention is to provide a lighting fixture that can be stored compactly without hanging down due to its own weight by placing the lighting fixture close to the bottom of a shelf or the like when not in use.

(Means for Solving the Problems) The retractable lighting fixture for a desk according to the present invention includes an upper substrate 51 that is attached under a member to be attached located above the desk 1, and a horizontal rotation on the upper substrate 51. A lower substrate 52 is movably supported, an arm member 8 is suspended from the lower surface of the lower substrate 52 and is rotatably pivoted about a horizontal axis, and an end portion of the arm member 6 is The lighting fixture body 7, which is provided with a rotatably mounted light bulb such as an incandescent bulb, and the arm member rotate upward, and the arm member 6 is locked in a state where the lighting fixture body 7 approaches the member to be attached 4. It consists of a locking means 8 for locking.

(Function) This device is configured as described above, and when illuminating a desk, the arm member 6 is rotated downward, and the lighting device main body 7 is placed on the shelf 4 or the like located above the desk 1. Illumination is performed by bringing the mounted member 4 closer to the desk 1, and the lighting fixture body 7 is rotated relative to the arm member 6 to adjust the angle of illumination. Further, by horizontally rotating the lower substrate 52 with respect to the upper substrate 51, the lighting fixture main body 7 is moved in the horizontal direction, and the illumination is adjusted so that it does not become dark.

In addition, when not lighting, the arm member 6
is rotated upward to bring the lighting fixture main body 7 close to the member to be attached 4, and in this state, the arm member 6 is locked by the locking means 8, and the arm member 6 moves freely under the weight of the lighting fixture main body 7. It is designed to suppress downward rotation.

(Example) Hereinafter, an example of this invention will be described in detail based on the drawings.

In this embodiment, as shown in FIG. 3, a shelf 4 of a bookshelf 3 removably placed on the back of a top plate 2 of a desk 1 serves as an attached member 4, and below this shelf 4 An arm member 6 is pivotally attached to the lower surface of the attached mounting base 5 so as to be freely rotatable in the vertical direction, and a lighting fixture main body 7 is rotatably attached to the end of the arm member 6. The lighting fixture main body 7 is provided with a light bulb such as an incandescent bulb.

In this embodiment, as shown in FIGS. 1 and 2, the mounting base material 5 consists of an upper substrate 51 fixed to the lower surface of the shelf 4 and a lower substrate 52 supporting the lighting fixture body 7. A protrusion 53 protruding from the upper surface of the substrate 52 is in sliding contact with the lower surface of the upper substrate 51, and the substrate 52 is supported under the upper substrate 51 so that it can rotate horizontally without wobbling. Along with such horizontal rotation of the lower substrate 52, the lighting fixture main body 7 is rotated in the horizontal direction, and its position is changed.

Furthermore, in this embodiment, the arm member 6 is composed of a pair of first links 61 that are disposed opposite to each other with a required spacing therebetween, and a second link 62 that is provided parallel to the first links 61 with a required spacing therebetween. ing. Here, as shown in FIGS. 1 and 2, these first and second links 61 and 62 have their upper ends pivotally supported by pin receiving pieces 54 provided on the lower substrate 52, respectively, in the vertical direction. The lower ends of the first and second links 61 and 62 are pivoted to the ends of the substantially U-shaped construction links 63, forming a four-bar parallelogram link mechanism. ing.

A mounting piece 71 protruding from the upper surface of the lighting fixture main body 7 is rotatably and fixedly attached to the center of the construction link 63 with an adjustment screw 72, and It is designed to rotate up and down as 61 and 62 rotate in the up and down direction. Note that the first and second links 61, 62
When the second link 62 rotates, the second link 62 rotates in the space between the pair of opposed first links 61, and the first and second links 61 and 62 are rotated upward. Even when it is rotated to be horizontal, the second link 62 fits between the pair of first links 61 and there is no collision.

8 is a locking means, and the locking means 8 locks the arm member 6 when the arm member 6 rotates upward and the lighting device body 7 approaches the shelf 4, and the locking device 8 locks the arm member 6 when the arm member 6 rotates upward and the lighting device body 7 approaches the shelf 4. This prevents the lighting fixture body 7 from rotating downward together with the arm member 6. In this embodiment, the first link 61 is connected to the lower substrate 52.
As shown in FIG. 62 rotates slightly above the horizontal state, the tensile force of this spring 83 applies an upward rotational force to the second link 62, thereby causing the lighting fixture body 7 to be placed on the shelf 4. They are designed to be locked in close proximity.

(Effects of the invention) As detailed above, in the retractable lighting fixture for a desk according to this invention, when illuminating the desk, the arm member is rotated downward, and the lighting fixture body is moved above the desk. It is possible to brightly illuminate the desk by bringing it closer to the desk from the shelf of the bookshelf where it is located, and the main body of the lighting device, which is equipped with a light bulb such as an incandescent bulb, can be rotated vertically relative to the arm member, and the upper board can be moved closer to the desk. On the other hand, by rotating the lower substrate in the horizontal direction, the angle can be adjusted and illumination can be performed at an appropriate angle to prevent the hands from getting dark. In particular, by adjusting the angle of light bulbs such as incandescent bulbs, you will not be left in the dark.Furthermore, when in use, the lighting fixture itself will move downward and forward from its storage position under a shelf, etc. For,
It can brightly illuminate your hands.

In addition, when not lighting, the arm member is rotated upward to bring the lighting fixture body close to the bottom of the shelf, etc., and in this state, the arm member is locked by the locking means, so the arm member At the same time, the irradiation device itself does not rotate downwards due to its own weight, and instead remains close to the bottom of the shelf, etc., and as a result, it is possible to avoid placing objects under the shelf, etc. on which the lighting device is attached. Even when placed, the lighting equipment does not get in the way like in the past, and the appearance becomes cleaner.

[Brief explanation of the drawing]

The drawings all show one embodiment of this invention; Fig. 1 is a side view showing how the lighting fixture is installed, Fig. 2 is a front view showing how it is installed, and Fig. 3 shows a desk with the lighting fixture installed. FIG. DESCRIPTION OF SYMBOLS 1... Desk, 4... Mounting member, 5... Mounting base material, 6... Arm member, 7... Lighting fixture body, 8
...Locking means.

Claims (1)

[Scope of utility model registration request] An upper substrate 51 is attached below the member to be attached located above the desk 1, a lower substrate 52 is supported by the upper substrate 51 so as to be rotatable in the horizontal direction, and the lower substrate 5
An arm member 8 is suspended from the lower surface of 2 and rotatably pivoted around a horizontal axis, and a light bulb such as an incandescent bulb is rotatably attached to the end of the arm member 6. A retractable lighting device for a desk, comprising a lighting device main body 7 with a fixed position, and a locking means 8 for locking the arm member 6 in a state in which the arm member rotates upward and the lighting device main body 7 approaches the attached member 4. utensils.