JPH0754892Y2 - Hanging light fixture - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention provides a lamp holder that detachably holds a lamp for illumination under the main body of a device that is suspended and supported, and is attached to this lamp holder. It is a hanging type lighting fixture with a shade attached to cover the outer peripheral side of the lamp.
When the shade is contaminated with dust due to use, it can be removed from the instrument body and washed by water etc. independently, so that the instrument body passes vertically through the holding frame of the shade. A locking portion that forms an opening of a movable size and that contacts the holding frame with a load receiving surface formed on the device body from above to hold the holding frame on the device body, and the locking portion. The present invention relates to a hanging type lighting fixture provided with a locking mechanism having an operating section for switching between the locked state and the unlocked state.

[Conventional technology]

In a conventional hanging-type lighting fixture, a locking portion of the locking mechanism and an operating portion are integrally formed on an upper end surface of the holding frame of the shade that is substantially flush with a top surface of the top of the lighting device body. The locking member configured as described above is brought into contact with the top plate of the instrument body serving as the load receiving surface from above and in a laterally outward direction from the top plate of the instrument body. It was mounted so as to be rotatable about the longitudinal axis in the unlocked state (see, for example, Japanese Utility Model Laid-Open Nos. 62-59910 and 64-36908).

[Problems to be solved by the device]

However, in the above-mentioned conventional hanging-type lighting fixture, when the dirty shade is removed and cleaning such as washing with water is performed, the holding fixture is held at a high position above the top surface of the hanging-supported fixture body. The locking member attached to the upper end face must be switched from the locked state to the unlocked state, and at this time, while supporting the shade and the holding frame with one hand, the locking member is Since the switching operation is performed by hand, the work of attaching and detaching the shade is complicated, and the attaching and detaching of the shade requires a lot of labor.

Further, as a method of performing the work of attaching and detaching the shade at a low position with respect to the ground, for example, the shade is screwed to the instrument body from the lower surface side of the instrument body, or the shade and the instrument body are attached to the lower surface of the instrument body. It is conceivable that the shades are screwed together from the side so that only the shade can be attached to and detached from the instrument main body in the suspended state.

However, even in this case, when attaching and detaching the shade, since the main body of the fixture is apt to swing due to the nature of the hanging type lighting fixture, it is necessary to hold the fixture main body with one hand and remove it with the other hand. However, there is a problem that the attachment and detachment work becomes complicated and a lot of trouble is involved.

The present invention has been made in view of the above circumstances,
The purpose is to devise a structure for attaching and detaching the shade to and from the device body so that the shade can be quickly and easily attached to and detached from the suspended device body at a low position in the ground. It is in.

[Means for Solving the Problems]

The characteristic configuration of the present invention for achieving the above-mentioned object is that in the hanging type lighting fixture described above, the operating portion of the locking mechanism is
The holding frame is disposed in the shade, and is disposed at a position where the holding frame can be released from the inside of the shade with the fingers that hold the holding frame.

[Action]

When removing the dirty shade and cleaning it with water,
Since the operating portion of the locking mechanism is attached to the portion facing the inside of the shade, it is not necessary to lean over the top surface of the suspended and supported instrument body, and the locking mechanism can be operated at a low position in the ground. The operation part can be unlocked.

Moreover, since the operation portion can be unlocked from the inside of the shade with fingers holding the holding frame, it is necessary to have another person support the shade and the holding frame until the locking is released. Instead, it is sufficient to pull out the holding frame of the shade that is being gripped at the time of releasing the lock of the operating portion.

In addition, when mounting the shade on the instrument body, in a state where the holding frame of the shade grasped together with the operating portion of the locking mechanism is moved from below the instrument body to a position above the load receiving surface of the instrument body, When the operating part in the unlocked state is switched to the locked state, the locking part comes into contact with the load receiving surface of the device body during the downward movement of the holding frame, and the holding frame including the shade is held in the device body. It is placed and supported on the load bearing surface of. In other words, the holding frame can be mounted just by lowering the holding frame after raising the holding frame slightly above the load receiving surface of the instrument body and switching the locking portion to the locking position in this state. For example, as in the case where the locking portion of the locking mechanism is configured to be fitted to the instrument body from the horizontal direction, it is necessary to visually check the engagement position of the locking portion with respect to the instrument body in the vertical direction one by one. Absent.

[Effect of device]

Therefore, when removing the shade, the unlocking operation of the operating portion of the locking mechanism can be performed with the fingers holding the holding frame in the shade, and the engaging position in the vertical direction of the locking portion when the shade is attached. By synergizing with the fact that it is not necessary to visually check each one, the shade frame of the shade can be quickly set by one person at a low position above the ground with respect to the device main body that is suspended.
It can be easily removed.

〔Example〕

 Embodiments of the present invention will be described below with reference to the drawings.

The hanging type lighting fixture shown in FIGS. 1 and 2 is a fixture main body (A) suspended from the ceiling surface via an electric cord (1) and two ring-shaped lamps (2) having different ring diameter dimensions.
And a shade (3) removably attached to the fixture body (A) while covering the outer peripheral side of the ring-shaped lamp (2) mounted on the lamp holder (B). It is provided as a main component.

The device body (A) has a case (4) that opens downward.
And a cover (5) that opens upward.

Of these, at four locations in the circumferential direction near the periphery of the opening of the cover (5), as shown in FIG. 7, L-shaped portions horizontally projecting inward in the radial direction of the annular lamp (2). The locking pieces (5b) are continuously provided. On the other hand, as shown in FIG. 8, an annular flange (4a) is continuously provided on the peripheral edge of the opening of the case (4), and the flange (4a) is provided at four circumferential positions. Covers (5), respectively
A receiving piece (4b) for holding the engaging piece (5b) of the above in a horizontally engageable and disengageable manner is formed by punching out downward.

Then, the cover (5) is rotated with respect to the case (4) with the locking piece (5b) of the cover (5) being in contact with the lower surface of the flange (4a) of the case (4). Thus, the locking piece (5b) of the cover (5) is configured to be locked and held on the receiving piece (4b) of the flange (4a) in a mounted state.

The maximum engagement position between the locking piece (5b) of the cover (5) and the receiving piece (4b) of the flange (4a) is determined by the stopper portion (5c) of the locking piece (5b) and the receiving piece (4b). It is configured to be regulated by contact with one end of the.

A board (6) having a lighting electronic circuit, a pull switch, a safety ball, etc. are provided in an internal space surrounded by the case (4) and the cover (5). At the center position of the light reflecting surface (5a) of the cover (5) and passing through the center of gravity of the lighting fixture, the lamp holder (B) is fitted in the vertical direction and the lamp holder (B) is moved in the horizontal direction. Is provided with a cylindrical projection (7) for preventing the movement of the.

The protrusion (7) is only rotatable about the longitudinal axis (X) with respect to the cover (5), and is provided at the central portion in the longitudinal direction of the holding case (8) of the lamp holder (B). It has a length protruding downward through the formed through hole (8a).

The lower end portion of the protrusion (7) protruding below the holding case (8) fitted to the protrusion (7) can be grasped with fingers. ), And a male and female connector part (10) for electrically connecting the substrate (6) of the fixture body (A) and the first lamp socket (9) of the lamp holder (B). It is configured to receive the operation reaction force generated at the time of connection in 11).

Further, between the fixture body (A) and the lamp holder (B), there is provided an engagement mechanism (12) capable of switching the two (A) and (B) between an engaged state and a disengaged state. The male and female connector parts (10) and (11) are connected to each other in the vertical direction when the lamp holder (B) is fitted to a predetermined position of the protrusion (7).

The holding case (8) of the lamp holder (B) is provided at one longitudinal end thereof with two upward semicircular lamp holding portions (13a) along the curved surface of the ring-shaped lamp (2) and is elastically deformable. The first arm (13) is connected continuously,
At the other end, a rigid cylindrical second arm (14) having two upward semicircular lamp receiving portions (14a) along the curved surface of the annular lamp (2) is connected. .

In each lamp receiving portion (14a) of the second arm (14),
A second lamp socket (15) is provided which can be connected to the pin-shaped terminal (2a) of the ring-shaped lamp (2).

As shown in FIG. 2, the engagement mechanism (12) has a pair of locking protrusions (which project radially inward) on the inner peripheral surface of the holding case (8) forming the through hole (8a). 12a) are provided in a row, and a first locking groove (12b) that engages with the locking projection (12a) in the vertical direction is provided on the outer peripheral surface of the projection body (7).
And a second engaging groove (12c) which engages with the engaging protrusion (12a) in the lateral direction and is formed to communicate with each other in an inverted L shape.

Then, after engaging the locking projection (12a) of the holding case (8) from below along the first locking groove (12b) of the projection body (7), the grip portion (7a) is grasped with fingers. With protrusions (7)
By rotating around the vertical axis (X),
The lamp holder (B) is configured to be engaged with and held by the fixture body (A) by engaging a) with the second locking groove (12c).

Further, between the upper end of the protrusion (7) and the case (4) facing the upper end, the protrusion (7) is held by elastic force at the engaging operation position and the engagement releasing position, respectively. A positioning mechanism (16) is provided.

Then, as shown in FIGS. 2 to 6, the holding frame (17) holding the shade (3) in a mounted state has a circular opening through which the instrument body (A) can move vertically. (18)
Further, the holding frame (17) including the shade (3) is provided at two opposite positions of the holding frame (17).
A locking mechanism (C) for holding the entire apparatus body (A) in a mounted state is provided.

The locking mechanism (C) is capable of contacting the load receiving surface (a) formed on the instrument body (A) from above with a contact portion (19).
A locking portion (19) having a substantially T-shape in plan view including a) and two locking portions (19) are swingably connected to a holding frame (17) about a vertical axis. Pivot shaft (20), a coil spring (21) for urging the both locking portions (19) inward in the radial direction on the locking side, and both locking portions (19) for the coil spring (21). ), And an operation portion (22) for pressing the device body (A) radially outward to a locking release position that allows relative movement of the instrument body (A), further comprising: The operation portion (22) is a portion located inside the shade (3) of the holding frame (17), and can be unlocked by fingers holding the holding frame (17) from inside the shade (3). It is arranged in the part.

The load receiving surface (a) is the flange (4) of the case (4).
The upper part of the cover (5) is configured to be used also, and at the upper end edge of the cover (5), the locking part (19) located on the load receiving surface (a) of the flange (4a) moves in the horizontal direction. An annular cap (5c) that regulates the above is integrally connected.

Then, as shown in FIG. 2, the operating portion (22) of each locking mechanism (C) is operated by the fingers holding the holding frame (17) to move the locking portion (19) to the locking position (first position). (See FIG. 5), the lock release position (see FIG. 6) is switched, and in this unlocked state, with respect to the suspended instrument body (A),
The holding frame (17) holding the shade (3) can be freely moved up and down.

Further, the retaining frame (17) of the shade (3) is attached to the device body (A) from below to prevent the device body (A) from falling off.
When the pushing operation of the operating portion (22) of the locking mechanism (C) is released in a state of being lifted to a position higher than d), the locking portion (19) is engaged by the elastic biasing force of the coil spring (21). It is swung from the stop release position (see FIG. 6) to the locking position (see FIG. 5).

When the holding frame (17) is moved downward in this locked state,
As shown in FIG. 3, the engaging portion (19) abuts the load receiving surface (a) of the flange (4a) of the instrument body (A) during the movement of the holding frame including the shade (3). (17) is locked and held on the load receiving surface (a) of the instrument body (A) in a mounted state.

[Another embodiment]

[I] FIGS. 9 to 11 show the second part of the locking mechanism (C).
An example is shown, which includes an engaging portion (19) in a plan view arc shape having two abutment portions (19a) abutting on a load receiving surface (a) of an instrument body (A), and this engagement. A pair of compression springs (23) for urging the stop portion (19) to move inward in the radial direction, and the locking portion (19) against the elastic urging force of the compression spring (23), and the instrument body (A). And an operating portion (22) for pressing the outer side in the radial direction to a locking release position that allows the relative passage movement thereof.

Further, the operating portion (22) is integrally connected to the central portion of the locking portion (19) in the longitudinal direction.

[II] In the above-mentioned embodiment, the shade (3) and the holding frame (17) are separately configured. However, even if the shade (3) and the holding frame (17) are integrally configured, they may be implemented. Good.

[III] In the above-described embodiment, the locking portion (19) of the locking mechanism (C) is elastically moved and biased to the locking position. It may be configured so as to be able to hold the respective positions at the two positions of the stop release position.

[IV] In the above-mentioned embodiment, the fall prevention portion (5d) is formed on the cover (5) side, but the flange (4
You may carry out by connecting to the outer peripheral edge of a).

Further, in the above-mentioned embodiment, the drop-out preventing portion (5d) is formed in an annular shape, but it may be formed intermittently at a plurality of circumferential positions of the cover (5) or the case (4). .

[V] In the above-described embodiment, the load receiving surface (a) is also used as the upper surface of the flange (4a) of the case (4), but a dedicated load is applied to the case (4) or the cover (5) side. You may implement it, forming a receiving surface (a).

[VI] In the above-described embodiment, the lamp holder (B) is configured to be attachable to and detachable from the lower side surface of the fixture body (A) in the vertical direction. However, the lamp holder (B) is attached to the fixture body (A).
It may be configured such that it can be detachably attached to the lower side surface from the horizontal direction.

In short, the lamp holder (B) for the fixture body (A)
Any structure may be adopted as the attachment / detachment structure as long as it can be easily attached / detached from the lower side of the instrument body (A).

Further, as a double safety measure, another locking mechanism for preventing fall may be provided to engage the fixture body (A) and the lamp holder (B).

Further, considering the operation surface for attaching and detaching the shade (3), it is desirable that the lamp holder (B) is detachably attached to the lower surface of the instrument body (A). When the shade (3) can be easily attached and detached by removing the lamp holder (B), the lamp holder (B) may be formed integrally with the instrument body (A).

[VII] In each of the above embodiments, two ring-shaped lamps (2)
Although the luminaire of the type in which the ring lamp 2 is mounted has been described, the number of ring lamps (2) to be mounted may be one, or three or more.

It should be noted that reference numerals are added to the claims of the utility model for convenience of comparison with the drawings, but the present invention is not limited to the structure of the accompanying drawings by the entry.

[Brief description of drawings]

1 to 8 show a first embodiment of a hanging type lighting fixture according to the present invention, FIG. 1 is a partially cutaway front view of the whole fixture, FIG. 2 is an exploded view of the whole fixture, 3 is an enlarged cross-sectional view of a main part, FIG. 4 is a cross-sectional view of the entire holding frame, FIG. 5 is an enlarged cross-sectional view showing a locked state of a locking mechanism, and FIG. FIG. 7 is an enlarged perspective view of a main part of the cover, and FIG. 8 is an enlarged perspective view of a main part of the case.
9 to 11 show a second embodiment, FIG. 9 is an enlarged partial cutaway side view of the locking mechanism, and FIG. 10 is a partial cutaway enlarged view showing the locked state of the locking mechanism. FIG. 11 is an enlarged view showing an unlocked state of the locking mechanism. (A) ... Instrument body, (B) ... Lamp holder, (C)
…… Locking mechanism, (a) …… Load receiving surface, (2) …… Lamp, (3) …… Sade, (4) …… Case, (4a) ……
Flange, (5) …… Cover, (5d) …… Fall prevention part,
(17) …… Holding frame, (18) …… Opening, (19) …… Locking part, (22) …… Operating part.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masao Aya 7-36 Higashi-Nakahama, Joto-ku, Osaka City, Osaka Prefecture Optoelectronics Co., Ltd. (72) Inventor Shozaburo Sudo Takakura-cho, Miyakojima-ku, Osaka-shi, Osaka 3-12-14 Electric Iron Works Co., Ltd. (56) References Actually open 64-36908 (JP, U) Actually open 62-59910 (JP, U)

Claims (1)

[Scope of utility model registration request] 1. A lamp holder (B) for detachably holding a lamp (2) for illumination is provided on the lower side of an equipment body (A) which is suspended and supported, and is attached to this lamp holder (B). In the holding frame (17) of the shade (3) that covers the outer peripheral side of the lamp (2), an opening (18) having a size through which the instrument body (A) can pass in the vertical direction is formed, and the holding frame is also provided. (17) a locking part (19) that abuts against the load receiving surface (a) formed on the device body (A) from above and holds the holding frame (17) on the device body (A). The locking part (19)
A hanging lighting device provided with a locking mechanism (C) having an operating part (22) for switching between a locked state and a unlocked state, the operating part of the locking mechanism (C). (22) to the holding frame (1
7) Hanging-type lighting fixtures that are located in the shade (3) and that can be unlocked by the fingers holding the holding frame (17) from the inside of the shade (3) .