JP4325358B2 - lighting equipment - Google Patents

Description

  The present invention relates to a lighting fixture attached to a lower surface of a ceiling.

Conventionally, as disclosed in Japanese Patent Application Laid-Open No. 2001-266635, an instrument body that is detachably attached to a hook ceiling installed on the lower surface of the ceiling, a light source provided on the lower surface side of the instrument body, A leaf spring as a buffer that is removably attached to the lower surface of the instrument body so as to cover the light source, and a shock absorber provided on the upper surface side of the instrument body to relieve rattling of the instrument body when the glove is attached / detached A lighting fixture having a rigid body having elasticity as described above is known.
JP 2001-266635 A

  However, in the thing of the above-mentioned patent document 1, since a shock absorber is a metal like a leaf | plate spring and this is exposed, there exists a discomfort with an instrument main body, and the external appearance when it looks up from diagonally downward is bad. When the weight balance of the main body is biased, the above-mentioned Patent Document 1 uses the same shape of the shock absorber, so that the balance of the device is lost and the device cannot be mounted horizontally.

  The present invention has been made in view of the above points, and has a good appearance when viewed from obliquely below, and even when the weight balance of the main body is uneven, the instrument main body can be installed horizontally in a well-balanced manner. It is an object to provide a lighting fixture.

In order to solve the above-described problem, the lighting fixture according to claim 1 has a fixture main body 1 that is detachably attached to a hooking ceiling 11 installed on the ceiling lower surface 10, as shown in FIG. A light source 2 provided on the lower surface side of the instrument body 1, a globe 3 that is detachably attached to the lower surface of the instrument body 1 so as to cover the light source 2, and a vertical movement provided on the upper surface side of the instrument body 1 possess a resin container 4 universal, and a plurality of springs 5 which gives relatively repulsive force with respect to the upper surface and the ceiling lower surface 10 of the instrument body 1 is housed in the resin container 4, the resin vessel 4 Is located outside the hook ceiling 11 and is formed in an annular shape so as to surround the hook ceiling 11 .
The lighting fixture according to claim 2 is the lighting fixture according to claim 1, wherein the resin container 4 is a combination of a large-diameter upper resin cover 41 and a small-diameter lower resin cover 42 as shown in FIG. The upper resin cover 41 is slidable up and down with respect to the lower resin cover 42,
The upper resin cover 41 includes a donut-shaped top plate 41a, a cylindrical outer tube plate 41b extending downward from the outer periphery of the top plate 41a, and a cylindrical inner tube extending downward from the inner periphery of the top plate 41a. The plate 41c is integrally molded,
The lower resin cover 42 includes a donut-shaped bottom plate 42a, a cylindrical outer cylindrical plate 42b extending upward from the outer peripheral edge of the bottom plate 42a, and a cylindrical inner cylindrical plate 42c extending upward from the inner peripheral edge of the bottom plate 42a. And is integrally molded,
Locking claws 41e and 42e are provided at the lower end of the inner cylinder plate 41c of the upper resin cover 41 and the upper end of the inner cylinder plate 42c of the lower resin cover 42, respectively. .
The lighting fixture of claim 3 is the lighting fixture of claim 2, as shown in FIG. 4, the top of the upper resin cover 41 is arranged so that a plurality of springs 5 are housed in a fixed position in the resin container 4. A storage cylinder 41d extending downward is provided on the lower surface of the plate 41a, and a storage cylinder 42d extending upward is provided on the upper surface of the bottom plate 42a of the lower resin cover 42.

  According to the present invention, when a lighting fixture attached to the ceiling is viewed from obliquely below, a metal such as a leaf spring is not exposed, so the appearance is good, and the resin container can be the same color as the fixture body. The appearance as the instrument body is also improved. Furthermore, even when there is a bias in the weight balance of the main body, the instrument main body can be installed horizontally with a good balance.

  FIG. 1 is a cross-sectional view of the lighting fixture of the present invention. The instrument body 1 includes a light source 2 on the lower surface. For example, a round fluorescent lamp is attached as the light source 2 and used. Moreover, this instrument main body 1 has a glove 3 attached to its lower surface in a detachable manner so as to cover the light source 2. As the globe 3, one formed by vacuum forming a milky white polyethylene resin sheet material having a plate thickness of about 1 to several mm and having a substantially bowl shape with an upper surface opening is adopted. The tool body 1 and the globe 3 may have a circular shape as illustrated, or may have various shapes such as a square shape. A plug 12 is formed on the upper surface of the instrument body 1 and is attached by being inserted into a hole of the hooking ceiling 11 and rotating. Moreover, it is good also as a structure which can mount | wear the hooking ceiling 11 with the upper surface of the instrument main body 1 via a suitable intermediate adapter. In short, the upper surface of the instrument body 1 is electrically and mechanically connected to the hooking ceiling 11 that is a wiring instrument.

  FIG. 2 is a top view of the resin container 4 provided on the upper part of the fixture body 1 of the lighting fixture. FIG. 3 is a cross-sectional view showing a state in which the resin container 4 is pressed against the ceiling lower surface 10. FIG. 4 is a cross-sectional view showing a state where the resin container 4 is not pressed against the ceiling lower surface.

  The resin container 4 is a combination of an upper resin cover 41 and a lower resin cover 42, and the upper resin cover 41 is slidable up and down with respect to the lower resin cover 42. Yes.

  The upper resin cover 41 includes a donut-shaped top plate 41a, a cylindrical outer tube plate 41b extending downward from the outer periphery of the top plate 41a, and a cylindrical inner tube extending downward from the inner periphery of the top plate 41a. The plate 41c is integrally molded. A thin packing 43 is stuck on the top surface of the top plate 41a. The packing 43 is made of a material such as urethane foam, and is used for maintaining the coefficient of friction with the ceiling lower surface 10. In addition, when the instrument main body 1 is attached to the hooking ceiling 11, the packing 43 is thin, so that the appearance is hardly visible.

  The lower resin cover 42 includes a donut-shaped bottom plate 42a, a cylindrical outer cylindrical plate 42b extending upward from the outer peripheral edge of the bottom plate 42a, and a cylindrical inner cylindrical plate 42c extending upward from the inner peripheral edge of the bottom plate 42a. And the bottom surface of the bottom plate 42 a is fixed to the top surface of the instrument body 1. The fixing means may be adhesion, screwing, engagement or other means.

  A plurality of springs 5 are provided at equal intervals between the upper resin cover 41 and the lower resin cover 42. Due to the repulsive force of the spring 5, the instrument body 1 is stretched against the ceiling lower surface 10 to prevent the instrument body 1 from rattling or rotating. In order to store these springs 5 in a fixed position, a storage cylinder 41d extending downward is provided on the lower surface of the top plate 41a of the upper resin cover 41, and on the upper surface of the bottom plate 42a of the lower resin cover 42. A storage cylinder 42d extending upward is provided.

  The spring 5 is a coil spring and is housed in the housing cylinders 41d and 42d of the resin covers 41 and 42 with the axial direction oriented in the vertical direction. A rib 42f having a diameter slightly smaller than the inner diameter of the spring 5 is provided on the larger diameter of the storage cylinder. This is because when the spring 5 moves in the horizontal direction, the spring 5 is inclined and prevents the spring repulsion force from being lowered.

  At the lower end of the inner cylinder plate 41c of the upper resin cover 41 and the upper end of the inner cylinder plate 42c of the lower resin cover 42, locking claws 41e and 42e are provided to be locked with each other. In a state where these locking claws 41e and 42e are locked to each other, as shown in FIG. 4, the upper and lower storage cylinders 41d and 42d have portions (height h) that overlap each other. Thereby, even if it attaches to a ceiling, it has the structure where the spring 5 does not jump out. Since the storage cylinders 41d and 42d overlap each other when the resin covers 41 and 42 are locked together, the resin covers 41 and 42 are rotated with respect to the instrument body 1. Even so, the storage cylinders 41d and 42d are in contact with each other and do not rotate. Therefore, the locking claws 41e and 42e are not detached, and the locking claws do not need to be provided on the entire circumference.

  The upper and lower resin covers 41, 42 have a large diameter on the upper side and a small diameter on the lower side. Even if the height of the resin cover 41 on the upper surface of the instrument body 1 is different due to the difference in height of the hooking ceiling 11, The height of the resin cover 41 is set so that only the side surface of the upper resin cover 41 can be seen from the eye line. FIG. 5 is a cross-sectional view showing a state where the lighting fixture of the present invention is fixed to a normal hooking ceiling 11, and FIG. 6 shows a state where the lighting fixture of the present invention is fixed to a hooking ceiling 11 ′ having a height higher than usual. It is sectional drawing shown. In either case, as shown by the arrows, since only the side surface of the upper resin cover 41 can be seen from the line of sight of the person when looking up from below, the seam is not noticeable and the appearance is improved. The resin container 4 may be a telescopic container.

  FIG. 7 is a top view of the lighting fixture according to the first embodiment of the present invention, and FIG. 8 is a sectional view thereof. The present embodiment is characterized in that a spring 5A having a relatively strong repulsive force is provided on the lightweight side of the instrument body 1 when the weight balance of the instrument body 1 is biased. In the figure, 5A is a spring with a strong repulsive force, and 5B is a spring with a low repulsive force. As shown in FIG. 8, the appliance body 1 is provided with a lighting circuit 12 on the right side, and the right side is relatively heavier than the left side.

  When the weight balance of the instrument body 1 is biased, a spring 5A having a relatively strong repulsive force is provided on the lightweight side of the instrument body 1 and a spring 5B having a weak repulsive force is provided on the weight side, and the instrument body 1 is kept horizontal. Yes. Such a spring repulsive force is arranged by providing a spring 5A having a relatively strong repulsive force since the instrument body 1 is inclined to the ceiling (upper side) when the spring force is evenly balanced. This is for pushing down to the opposite side (lower side) of the ceiling.

  The present invention can be used as, for example, a ceiling-mounted lighting fixture for general households.

It is sectional drawing of the state which mounted | wore the ceiling lower surface with the lighting fixture of this invention. It is a top view of the resin container provided in the fixture main body upper part of the lighting fixture of this invention. It is sectional drawing which shows the state which pressed the resin-made container provided in the fixture main body upper part of the lighting fixture of this invention against the ceiling lower surface. It is sectional drawing which shows the state which has not pressed the resin container provided in the fixture main body upper part of the lighting fixture of this invention against the ceiling lower surface. It is sectional drawing which shows the state which fixed the lighting fixture of this invention to the usual hook ceiling. It is sectional drawing which shows the state which fixed the lighting fixture of this invention to the hook ceiling whose height is higher than usual. It is a top view of the lighting fixture of Example 1 of this invention. It is sectional drawing of the lighting fixture of Example 1 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Instrument main body 2 Light source 3 Globe 4 Resin container 5 Spring 10 Bottom surface of ceiling 11 Hook ceiling 41 Upper resin cover 42 Lower resin cover 43 Packing

Claims (3)

An instrument body that is detachably mounted on a hook ceiling installed on the lower surface of the ceiling, a light source provided on the lower surface side of the instrument body, and a glove that is detachably attached to the lower surface of the instrument body so as to cover the light source A vertically movable resin container provided on the upper surface side of the instrument main body, and a plurality of springs housed in the resin container and providing a repulsive force relative to the upper surface of the instrument main body and the lower surface of the ceiling luminaire have a preparative, resin container is located outside the ceiling-mounted hooking receptacle, characterized by being formed into an annular shape so as to surround the ceiling-mounted hooking receptacle. In Claim 1, the resin container is a combination of a large-diameter upper resin cover and a small-diameter lower resin cover, and the upper resin cover is movable up and down with respect to the lower resin cover. It is possible to slide,
The upper resin cover is formed by integrally molding a donut-shaped top plate, a cylindrical outer cylinder plate extending downward from the outer peripheral edge of the top plate, and a cylindrical inner cylinder plate extending downward from the inner peripheral edge of the top plate. And
The lower resin cover is formed by integrally molding a donut-shaped bottom plate, a cylindrical outer cylinder plate extending upward from the outer peripheral edge of the bottom plate, and a cylindrical inner cylinder plate extending upward from the inner peripheral edge of the bottom plate And
An illuminating device characterized in that a locking claw for locking each other is provided at a lower end of the inner cylindrical plate of the upper resin cover and an upper end of the inner cylindrical plate of the lower resin cover . 3. The lower resin cover according to claim 2, wherein a storage cylinder extending downward is provided on the lower surface of the top plate of the upper resin cover so that a plurality of springs are stored in fixed positions in the resin container. An illuminating device characterized in that a housing cylinder extending upward is provided on an upper surface of the bottom plate.

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