JP4915682B1 - Mounting fixture for lighting equipment - Google Patents

Abstract

An object of the present invention is to simplify the structure of parts constituting a lock mechanism and to visually check an incomplete operation state of a lock piece.
A lock piece 4a, which is linked via a cam mechanism at a lock body linking portion 51 of a release button 5 and urged in a constantly protruding state, is fitted into a plug blade inlet 17 of a sealing outlet 16. While the lock piece is released, the lock piece is unlocked by pressing the button, and the extension 51a is retracted to the side of the lock claw that does not interfere with the lock claw 7 when the lock piece protrudes. On the other hand, the lock mechanism 40 that enters between the end faces of the respective locking claws when the lock piece is immersed and restricts the movement of the locking claws, and the opening 14 that visually confirms the color 53 on the lower surface of the extension 51a cover the cover. The color 53 appears in the opening 14 when the lock piece is in a state of being depressed from the state of being protruded by the action of the sealing outlet.
[Selection] Figure 4

Description

  The present invention relates to a lighting fixture mounting adapter used for a ceiling direct lighting fixture to be attached to a ceiling outlet fixed to a ceiling.

  A conventional ceiling-mounted lighting fixture mounting apparatus includes a ceiling outlet fixed to the ceiling and a lighting fixture mounting adapter (hereinafter referred to as a mounting adapter) attached to the ceiling outlet. The mounting adapter is inserted in the plug blade inlet of the sealing outlet, rotated in the mounting direction (clockwise), mechanically locked to the receiving blade, and electrically connected at the same time, while counterclockwise It can be removed by rotating it.

  In such an apparatus, a rotation stopping mechanism (locking mechanism) of the mounting adapter with respect to the ceiling outlet and a locking claw mechanism for mounting the lighting fixture on the mounting adapter are provided. Both of these mechanisms are configured to be functionally independent, and the locking claw mechanism can be operated regardless of the locking mechanism (Cited Document 1, Cited Document 2).

  In the apparatus having the above mechanism, the luminaire main body is properly attached to the locking claw of the mounting adapter because the locking mechanism is incompletely locked when the mounting adapter is not rotated until the mounting adapter stops with respect to the ceiling outlet. It will not be locked in the state.

  There has been proposed a lock mechanism including means for preventing the attachment of the lighting fixture body when the attachment adapter is attached to the ceiling outlet without rotating until it stops. For example, in Cited Document 3, fitting recesses are provided in the rear portions of the left and right locking members, respectively, and in the locked state, the locking claws are fitted into the locking recesses so that each locking claw is moved into a state of being sunk from both sides of the adapter base. On the other hand, in the unlocked state, the locking member is provided with a locking claw lock portion that abuts the rear portions of the left and right locking members and locks the locking claws in a state of protruding from both side portions of the adapter base. Is disclosed.

  However, the locking claw lock part integrated with the locking member moves perpendicularly to the flow line of the left and right locking members, and moves within the motion trajectory when the left and right locking members appear and disappear. It has a structure that always exists. Therefore, it is necessary to have a fitting recess in the rear part of each locking member so that each locking claw can be moved into a state of being recessed from both sides of the adapter base, and the structure of the locking member and each locking member is complicated. It has become. Further, when the latching claw moves in the locked state, contact may occur between the latching claw lock portion of the lock member within the fitting recess of the latching claw. In addition, when the mounting adapter is rotated with respect to the ceiling outlet and the locking claw is pushed in due to the action of the sealing outlet, that is, when the mounting adapter is not rotated, the locking claw is operated. I had to check if it was movable.

JP 7-37410 A Japanese Patent Laid-Open No. 11-213745 Japanese Patent No. 4119071

The problem to be solved is that the means that enters between the end surfaces of each locking claw in the unlocked state and locks each locking claw in the protruding state is within the movement locus of the end surface of the locking claw in the locked state. It is always present and interference with the locking claw is inevitable.
In addition, when attaching the mounting adapter to the sealing outlet, visually check the state of the lock piece being immersed due to the action of the sealing outlet in the process from when the plug blade is inserted into the plug blade inlet to when it is stopped. It is impossible.

The invention according to claim 1 inserts a plug blade into a plug blade inlet of a sealing outlet fixed to the ceiling surface, rotates the plug blade in the mounting direction, and mechanically locks the plug blade to the receiving blade, and A mounting adapter for a lighting fixture for electrical connection,
The open side which is the lower surface of the body is closed with a cover, and the bottomed cylindrical body whose upper side of the sealing outlet is the upper surface of the body,
A latching claw mechanism provided with a pair of latching claws that can be projected and retracted from a symmetrical position on the side surface of the body by a linear motion, and provided with an elastic body that constantly urges each latching claw to protrude from the side surface of the body;
A lock body with a lock piece that can be raised and lowered from the upper surface of the body is linked via a cam mechanism at the lock body linkage of the release button located on the side of the body, and is always protruding from the upper surface of the body by the elastic body The lock piece urged by is inserted into the plug blade inlet of the sealing outlet so as to be locked, while the lock piece is depressed by pressing the release button to release the lock, and the lock An extension part forming a part of the body linkage part is located in the body, and when the extension part protrudes from the lock piece, it does not interfere with the end faces of the pair of locking claws and enters the side of the locking claw side body. A lock mechanism that retracts between the end surfaces of the respective locking claws in a state in which the lock pieces are immersed, and restricts the movement of the locking claws;
Confirmation means comprising an opening formed in the cover so as to face the color of the lower surface of the extension part forming part of the lock body linkage part and the position where the extension part enters between the end faces of the respective locking claws; With
In the mounting to the sealing outlet, when the lock piece changes from a protruding state to an immersive state due to the action of the sealing outlet, it is made visible by a color appearing in the opening .

  As another characteristic configuration, the cam mechanism includes a cam groove having a predetermined inclination angle and a cam protrusion that engages with the cam groove. The color appearing in the opening of the cover is the color of the molded body of the release button itself or a colored portion provided on a part of the lower surface of the release button, preferably red.

According to the first aspect of the present invention, the structure of the parts constituting the lock mechanism is simplified, and the safety against dropping of the lighting fixture and the detachability of the lighting fixture are improved. Further, in the process of rotating the mounting adapter with respect to the sealing outlet, the lock piece is immersed due to the action of the sealing outlet, that is, the incomplete operation state can be visually confirmed.

FIG. 1 is an explanatory view showing a mounting state of the direct-mounted lighting fixture. FIG. 2 is an explanatory diagram illustrating a ceiling outlet and a mounting fixture for a lighting fixture. FIG. 3 is a perspective view of a mounting fixture for a lighting fixture. FIG. 4 is an exploded perspective view of the lighting fixture mounting adapter as seen from below. FIG. 5A is an exploded view of the locking mechanism. FIG. 5B is an explanatory diagram of a lock mechanism in which the arrangement of the elastic body is changed. FIG. 5C is an exploded view of a lock mechanism composed of a release button of a red molded body. FIG. 6A is a partially broken explanatory view showing the unlocked state. 6B is a cross-sectional view taken along line AA in FIG. 6A. FIG. 7A is a partially broken explanatory view showing a locked state. FIG. 7B is a cross-sectional view taken along line BB in FIG. 7A. FIG. 8 is an explanatory diagram of a sealing outlet and a lighting fixture mounting adapter when the plug blade is inserted into the plug blade inlet. FIG. 9 is an explanatory diagram of a locking claw mechanism and a locking mechanism when the plug blade is inserted into the plug blade inlet. FIG. 10 is an explanatory diagram of the confirmation means when the plug blade is inserted into the plug blade inlet. FIG. 11 is an explanatory view when the lock piece is immersed due to the action of the sealing outlet. FIG. 12 is an explanatory diagram of the locking claw mechanism and the lock mechanism when the lock piece is in a state of being immersed by the action of the sealing outlet. FIG. 13 is an explanatory view of the confirmation means when the lock piece is in a state of being immersed due to the action of the sealing outlet. FIG. 14 is an explanatory diagram when the lock piece protrudes and is inserted into the plug blade inlet of the sealing outlet, and is in a locked state. FIG. 15 is an explanatory diagram of the locking claw mechanism and the lock mechanism when the lock piece protrudes and fits into the plug blade introduction port of the sealing outlet and enters the locked state. FIG. 16 is an explanatory view of the confirmation means when the lock piece protrudes and fits into the plug blade inlet of the sealing outlet and enters the locked state. FIG. 17 is an explanatory diagram of another embodiment.

While the extension part that forms part of the lock body linkage part of the release button in the locked state retreats to the side of the locking claw that does not interfere with the end face of each locking claw, it enables the locking claw to be pushed in by external force In the state that the lock piece is immersed due to the action of the sealing outlet, it enters between the respective locking claws and restricts the movement of the locking claws, and the sealing outlet and the mounting adapter are incompletely locked by the colored portion appearing in the opening It can be confirmed visually.
Embodiments will be described in detail below with reference to the drawings.

  FIG. 1 is an explanatory diagram showing a mounting state of a direct lighting fixture, FIG. 2 is an explanatory diagram showing a ceiling outlet and a lighting fixture mounting adapter, and FIG. 3 is a perspective view of the lighting fixture mounting adapter.

  A lighting fixture mounting adapter (hereinafter referred to as a mounting adapter) 15 is attached to a ceiling outlet 16 fixed to the ceiling surface 20, and a lighting fixture 21 is mounted on the mounting adapter 15.

  The mounting adapter 15 is closed with a bottomed cylindrical body 1 and a cover 2 fixed to the opening side of the body 1 with screws 10. Since the bottom of the body 1 is attached to the ceiling outlet 16 with the bottom facing the ceiling, the bottom side of the body 1 is referred to as the top surface of the body and the cover 2 side is referred to as the bottom surface of the body.

  The body 1 includes a lock mechanism 40 including a lock body 4 and a release button 5, a pair of locking claws 7, a locking claw mechanism 30 including a locking claw operation unit 71 that moves each locking claw 7, and a lock Confirmation means 50 for visually checking whether or not the piece 4a is in an incompletely operating position.

  An operation opening 24 is formed in the cover 2 on the lower surface of the body so as to face the locking claw operation portion 71. On the upper surface of the body, a pair of plug blades 3 are provided at diagonal positions with the center of the body 1 extending from the body 1, and a lock piece 4 a of the lock body 4 is located near one of the plug blades 3. Has been placed.

  The sealing outlet 16 is provided with a wide pair of plug blade introduction ports 17 into which the pair of plug blades 3 are inserted, and an arcuate slit 17a having a width slightly larger than the blade thickness is formed from the plug blade introduction port 17. Thus, when the mounting adapter 15 is mounted, the mounting adapter 15 can be rotated in the mounting direction (clockwise). When the plug blade 3 of the mounting adapter 15 is inserted into the plug blade inlet 17 of the sealing outlet 16 and rotated clockwise, the plug blade 3 is mechanically locked to the receiving blade (not shown) and electrically Connected.

  The luminaire 21 includes a luminaire main body 22 and a shade 23. The luminaire 21 is attached by fitting an attachment hole of the luminaire main body 22 to the attachment adapter 15 and locking the locking claw 7 to the periphery of the attachment hole. The connector 13 of the electric wire 12 terminal-connected to the plug blade 3 is connected to the connector on the lighting fixture 21 side and can be used.

The mounting adapter will be described in detail. FIG. 4 is a perspective view of the mounting adapter as viewed from below.
Inside the body 1, a partition wall 32 orthogonal to the linear movement of the locking claw 7 and left and right side walls 33 for guiding the linear movement of the locking claw 7 constituting the locking claw mechanism 30 are provided at the center of the body. A notch 31 is formed on the side surface of the body between the side walls. The locking claw 7 is incorporated in a space surrounded by the partition wall 32 and the side wall 33, and is provided so as to protrude from the notch 31.

  The latching claw mechanism 30 includes a pair of independent latching claws 7 protruding from the symmetrical position on the side of the body, and the end surfaces of the respective latching claws 7 are symmetrical and do not interfere with the partition wall 32. The contact portion 73 is integrally formed. The elastic body 8 is interposed between the concave locking portion 74 (see FIG. 9) formed in the vicinity of the end face of the locking claw 7 and the partition wall 32, and the locking claw 7 is constantly urged to protrude. ing. A projection 72 is provided on the upper surface of the locking claw 7 as shown in FIG. On the other hand, a guide groove 34 is formed on the bottom surface of the body 1 in the linear movement direction of the locking claw 7, and the projection 72 of the locking claw 7 is guided in the guide groove 34. On the lower surface of the locking claw 7, a locking claw operating part 71 for operating with a fingertip is provided.

The locking mechanism will be described with reference to FIGS.
The lock mechanism 40 includes a release button 5 that operates in a direction orthogonal to the direction of movement of the locking claw 7, and a lock provided with a lock piece 4 a that is linked to the release button 5 and operates in the vertical direction of the body 1. It consists of a body 4 and an elastic body 6 that urges the lock body 4 so that the lock piece 4a always protrudes from the upper surface of the body. In the release button 5, a pressing portion is exposed in the concave portion 1 a on the side surface of the body, and a lock body linking portion 51 wider than the pressing portion is assembled in a partitioned place in the body 1. The lock body linking part 51 is open in the vertical direction, and is provided with a cam projection 52 facing the inner surface thereof, and an extension part 51a having the same width as the linking part 51 is integrally formed on the side opposite to the pressing part. Molded.

  The lock body 4 is integrally formed with a lock piece 4a and a base portion having a rectangular cross section, and a cam groove 18 having a predetermined inclination angle is formed on the side surface and the opposite side surface of the base portion. The cam groove 18 is engaged with a circular cam protrusion 52 of the lock body linkage portion 51 to constitute a cam mechanism. When the release button 5 is pressed, the cam mechanism moves the lock body 4 against the urging force of the elastic body 6 to immerse the lock piece 4a from the upper surface of the body into the unlocked state (state shown in FIG. 6). When the release button 5 is released, the lock piece 4a is protruded from the upper surface of the body by the urging force of the elastic body 6 to be in a locked state (the state shown in FIG. 7).

  The elastic body 6 is arranged between the cover 2 and the lock body 4 as shown in FIG. 5A, or between the end face of the release button 5 and the body 1 as shown in FIG. 5B. Any arrangement may be implemented. Further, the cam groove 18 and the cam projection 52 may be provided in the opposite relationship, that is, the cam groove 18 may be provided in the lock body linking portion 51 and the cam projection 52 may be provided in the lock body 4.

A means for visually confirming whether or not the lock piece is in an incomplete operation state will be described with reference to FIGS.
The confirmation means 50 is provided with a colored portion 53 having a predetermined width on the lower surface edge side of the extending portion 51a forming a part of the lock body linking portion 51 of the release button 5, and an opening 14 facing the colored portion 53 is formed in the cover 2. Has been. The extension part 51a of the lock body linking part 51 retreats to the side of the locking claw that does not interfere with the end face of each locking claw 7 only when the lock piece 4a protrudes (state shown in FIGS. 9 and 15). In the state in which the lock piece 4a is immersed, it enters between the end faces of the respective locking claws 7 to restrict the movement of the locking claws 7 (state of FIG. 12).

  In the state shown in FIG. 6, since the colored portion 53 appears in the opening 14 of the cover 2, it can be visually confirmed that the lock piece 4a is in an incomplete operating state. In the state shown in FIG. 7, since the colored portion 53 does not appear in the opening 14 of the cover 2, it can be visually confirmed that the lock piece 4a is in a normal operating state. The colored portion 53 is preferably red.

  As another specific example, when the release button 5 is made of, for example, a red molded body (see FIG. 5C), a part of the release button 5 can be visually confirmed from the opening 14.

Next, the operation of this embodiment will be described.
First, as shown in FIG. 8, the plug blade 3 of the mounting adapter 15 is inserted into the plug blade introduction port 17 of the sealing outlet 16. At this time, as shown in FIG. 9, the release button 5 and the locking claw 7 protrude from the side surface of the body. The lock piece 4a protrudes from the upper surface of the body and is in a normal operation state. Since the extended portion 51a of the lock body linking portion 51 is located away from the opening 14, that is, the position retracted to the side of the locking claw, the colored portion 53 does not appear in the opening 14 as shown in FIG. It can be visually confirmed that the lock piece 4a is in a normal operation state. In this state, the locking claw 7 is pushed into the body 1 by an external force.

  Subsequently, when the mounting adapter 15 is rotated in the mounting direction (clockwise), the lower surface of the sealing outlet 16 comes into contact with the lock piece 4a. When the mounting adapter 15 is further rotated, the locking piece 4a is moved into the body 1 by the action of the sealing outlet 16. Push in and become immersive. In this process, the movement of the lock piece 4a moves the release button 5 toward the center of the body. Thereby, as shown in FIG. 12, the extension part 51a of the lock body linkage part 51 enters between the end face of one locking claw 7 and the contact part 73 of the other locking claw 7, and at the same time the opening 14 is formed. It is blocked. In this state, the locking claw 7 is prevented from being pushed into the body, and a colored portion 53 appears in the opening 14 (the state shown in FIG. 13). When the colored portion 53 appears in the opening 14, it can be visually confirmed that the lock piece 4a is in an incomplete operating state.

  Further, when the mounting adapter 15 is rotated in the mounting direction, the lock piece 4a protrudes when it coincides with the plug blade introduction port 17, the lock piece 4a is fitted into the plug blade introduction port 17, and the removal direction of the mounting adapter 15 (reverse) Lock the clockwise rotation. At this time, the movement of the lock piece 4a causes the release button 5 to move in a direction protruding from the side surface of the body, and the extension 51a of the lock body linking portion 51 is disengaged from between the locking claws 7, and the end surfaces of the respective locking claws 7 It retracts to the side of the locking claw that does not interfere, and the locking claw 7 can be pushed in by an external force. In this state, since the colored portion 53 has disappeared from the opening 14, it is possible to correctly attach the lighting fixture by looking at this.

FIG. 17 is an explanatory view showing another embodiment of the present invention.
In this embodiment, the release button 5 is applied to a mounting adapter that does not restrict the movement of the locking claw 7. Since the release button 5 does not have an extended portion that enters between the end faces of the locking claw 7 when the lock piece 4a is in an incompletely operated state pushed by the action of the sealing outlet 16, as shown in FIG. When the locking claw 7 is pushed in the direction indicated by the arrow in FIG. 17, it can be retracted into the body 1. The cover 2 is provided with an opening 14 at a position deviating from the movement line of the locking claw and where the lock piece 4a overlaps the lower surface of the release button 5 in an incompletely operated state.
According to such a configuration, even when the mounting adapter 15 is attached to the ceiling outlet 16 without rotating until it stops, that is, even when the lock piece 4a is in an incompletely operating state, it appears in the opening 14 of the cover 2. It can be visually confirmed by the color of the release button 5 and the color of the colored portion provided on the lower surface of the release button 5.

  In the above-described embodiment, the mounting adapter is applied to a type in which the mounting outlet is turned into a recessed state by acting on the locking piece of the locking mechanism by rotating the mounting adapter by a predetermined angle with respect to the rectangular sealing outlet. However, the present invention is not limited to this. In the case of a round type sealing outlet, when the plug blade is inserted into the plug blade inlet, the sealing outlet abuts in the direction of pushing into the lock piece, and the lock piece protrudes before turning due to the action of the sealing outlet at this time Change from state to immersive state. In this type, since the lock piece is incompletely operated in the process from when the plug blade is inserted into the plug blade inlet to when it is stopped, it is effective to apply the confirmation means of the present invention. .

DESCRIPTION OF SYMBOLS 1 Body 2 Cover 3 Plug blade 4 Locking body 4a Locking piece 5 Release button 6 Elastic body 7 Locking claw 8 Elastic body 14 Opening 15 Mounting fixture for lighting fixtures 16 Ceiling outlet 17 Plug blade introduction port 18 Cam groove 20 Ceiling surface 21 Illumination Appliance 22 Lighting fixture body 23 Sede 30 Locking claw mechanism 40 Lock mechanism 50 Confirmation means 51 Lock body linkage portion 51a Extension portion 52 Cam projection 53 Colored portion

Claims (4)

Installation for lighting fixtures where the plug blade is inserted into the plug blade inlet of the ceiling outlet fixed to the ceiling surface, rotated in the mounting direction, mechanically locked to the receiving blade, and electrically connected An adapter,
The open side which is the lower surface of the body is closed with a cover, and the bottomed cylindrical body whose upper side of the sealing outlet is the upper surface of the body,
A latching claw mechanism provided with a pair of latching claws that can be projected and retracted from a symmetrical position on the side surface of the body by a linear motion, and provided with an elastic body that constantly urges each latching claw to protrude from the side surface of the body;
A lock body with a lock piece that can be raised and lowered from the upper surface of the body is linked via a cam mechanism at the lock body linkage of the release button located on the side of the body, and is always protruding from the upper surface of the body by the elastic body The lock piece urged by is inserted into the plug blade inlet of the sealing outlet so as to be locked, while the lock piece is depressed by pressing the release button to release the lock, and the lock An extension part forming a part of the body linkage part is located in the body, and when the extension part protrudes from the lock piece, it does not interfere with the end faces of the pair of locking claws and enters the side of the locking claw side body. A lock mechanism that retracts between the end surfaces of the respective locking claws in a state in which the lock pieces are immersed, and restricts the movement of the locking claws;
Confirmation means comprising an opening formed in the cover so as to face the color of the lower surface of the extension part forming part of the lock body linkage part and the position where the extension part enters between the end faces of the respective locking claws; With
An attachment adapter for a lighting fixture, which is made visible by a color appearing in the opening when the lock piece is brought into a sunk state due to the action of the ceiling outlet in the attachment to the ceiling outlet . The mounting adapter for a lighting fixture according to claim 1, wherein the cam mechanism includes a cam groove having a predetermined inclination angle and a cam protrusion that engages with the cam groove. The mounting adapter for lighting equipment according to claim 1 , wherein a color appearing in the opening of the cover is a color of a molded body of the release button or a colored portion on a lower surface of the release button. The luminaire mounting adapter according to claim 3 , wherein the color that appears in the opening of the cover is red.

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