CN110911913A

CN110911913A - Pull-hanging wire holder and lighting device

Info

Publication number: CN110911913A
Application number: CN201811080344.2A
Authority: CN
Inventors: 简烱喻; 郑思源; 三宅智裕
Original assignee: Panasonic Intellectual Property Management Co Ltd
Current assignee: Panasonic Intellectual Property Management Co Ltd
Priority date: 2018-09-17
Filing date: 2018-09-17
Publication date: 2020-03-24
Also published as: TWI745747B; TW202012840A

Abstract

The invention relates to a leading and hanging type wire holder and a lighting device. The invention can miniaturize the hanging type wire holder and ensure the clamping property when the adapter for the lighting apparatus is clamped on the hanging type wire holder. The hanging wire holder has: a housing having a1 st surface facing the lighting fixture adapter and a2 nd surface opposite to the 1 st surface; and a first blade receiver, a second blade receiver, and a third blade receiver having a first connected part, a second connected part, and a third connected part; the first, second, and third guide grooves are provided on the 1 st surface side of the housing, and each of the first, second, and third terminals, through which the end of one of the lighting fixture adapters has approximately the same height, is connectable to each of the first, second, and third connected portions.

Description

Pull-hanging wire holder and lighting device

Technical Field

The present invention relates to a ceiling-mounted wire holder and a lighting fixture.

Background

Conventionally, a pull-up type wire holder and a lighting fixture adaptor for electrically and mechanically connecting a lighting fixture to a ceiling have been known, for example, patent document 1.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open publication No. 2011-154889

Disclosure of Invention

[ problems to be solved by the invention ]

Generally, the adapter for a lighting fixture has at least two terminals for power supply. However, in consideration of the safety of the adapter for a lighting fixture in use, when the adapter for a lighting fixture has three or more terminals by adding another terminal, there is a space for examining the arrangement of the three or more terminals. In addition, the pull-up type wire holder must have three or more insertion holes corresponding to the adapter for lighting equipment in which three or more terminals are arranged. However, in order to solve the problems of the miniaturization and the clamping of the adapter for the lighting apparatus, it is necessary to examine the problems of the miniaturization and the clamping of the pull-up type wire holder.

The present invention has been made to solve the above-described problems, and an object thereof is to provide a pull-up type wire holder and a lighting device including the same, which can reduce the size of the pull-up type wire holder and ensure the holding property when an adapter for a lighting apparatus is engaged with the pull-up type wire holder.

[ means for solving problems ]

In order to solve the above-described problems, the present invention is characterized by a pull-up type wire holder for connecting an adapter for a lighting apparatus and an apparatus body of the lighting apparatus to a ceiling or the like, comprising: a housing having a1 st surface facing the lighting fixture adapter and a2 nd surface opposite to the 1 st surface; and a first blade, a second blade, and a third blade; each of the first blade, the second blade, and the third blade has a first connected portion, a second connected portion, and a third connected portion connected to each of the first terminal, the second terminal, and the third terminal, and the first terminal, the second terminal, and the third terminal, which are substantially the same in height as one end of the lighting fixture adapter, pass through the first guide groove, the second guide groove, and the third guide groove, which are connectable to each of the first connected portion, the second connected portion, and the third connected portion, are provided on the 1 st surface side of the housing.

Preferably, the third connected portion is closer to the 1 st surface side than the first connected portion and the second connected portion.

Preferably, the third connected portion is disposed axially below an upper edge of each of the first connected portion and the second connected portion.

Preferably, the third portion to be connected includes an opening for receiving the third terminal, a guide portion for guiding the third terminal, and an engagement portion for engaging with the third terminal.

Preferably, the opening portions are spaced apart from each other at a larger interval in a direction opposite to the sandwiching direction from the induction portion side.

Preferably, each of the first guide groove, the second guide groove, and the third guide groove includes: a first insertion portion, a second insertion portion, and a third insertion portion, each of the first terminal, the second terminal, and the third terminal being insertable in an axial direction, a first guide portion, a second guide portion, and a third guide portion, each of the first terminal, the second terminal, and the third terminal being capable of guiding each of the first blade, the second blade, and the third blade, and a first end portion, a second end portion, and a third end portion, each of the first terminal, the second terminal, and the third terminal being capable of restricting forward movement, wherein the first insertion portion has a width larger than a width of each of the first guide portion and the first end portion, and the second insertion portion has a width larger than a width of each of the second guide portion and the second end portion.

Preferably, each of the first guide groove, the second guide groove, and the third guide groove has a first insertion portion, a second insertion portion, and a third insertion portion into which each of the first terminal, the second terminal, and the third terminal is insertable in an axial direction, and the first insertion portion and the second insertion portion are different in shape when viewed from the 1 st surface side.

Preferably, each of the first guide groove, the second guide groove, and the third guide groove has a first insertion portion, a second insertion portion, and a third insertion portion into which each of the first terminal, the second terminal, and the third terminal is insertable in an axial direction, and a first position of the first insertion portion, a second position of the second insertion portion, and a third position of the third insertion portion are formed as 3 vertices of a triangle when viewed from the 1 st surface side.

Preferably, the first blade and the second blade are a pair of blades for receiving power supply from the pull-up type wire holder through the first terminal and the second terminal of the adapter for a lighting apparatus, and the third blade is a ground blade.

In addition, the present invention is a lighting fixture including: the leading and hanging type wire holder and the appliance body.

[ Effect of the invention ]

According to the present invention, it is possible to reduce the size of the pull-up type wire holder, ensure the clamping property when the adapter for a lighting fixture is engaged with the pull-up type wire holder, and ensure the insulation distance of the third connection target portion.

Drawings

Fig. 1 is an exploded view showing a lighting fixture according to an embodiment of the present invention.

Fig. 2 is a perspective view of the adapter for a lighting apparatus and the pull-up type wire holder according to the embodiment of the present invention.

Fig. 3 is an external perspective view of an adapter for a lighting apparatus and a pull-up type wire holder according to an embodiment of the present invention, as viewed from above.

Fig. 4 is a schematic view of a lighting fixture adaptor according to an embodiment of the present invention, as viewed from the horizontal direction.

Fig. 5 is a schematic view showing a lighting fixture adaptor according to another embodiment of the present invention, as viewed from the horizontal direction.

Fig. 6 is an exploded perspective view of a pull-up wire holder according to an embodiment of the present invention.

Fig. 7 is an exploded perspective view of a pull-up type wire holder according to an embodiment of the present invention, as viewed from below.

Fig. 8 is a perspective view showing a main body of a pull-type wire holder according to an embodiment of the present invention.

Fig. 9 is a plan view showing that the pull-type wire holder of fig. 8 is provided with a first blade, a second blade, and a third blade.

Fig. 10 is a schematic view showing the arrangement relationship between the first blade, the second blade, and the third blade in the pull-type wire holder of fig. 9 and the first guide groove 231, the second guide groove, and the third guide groove.

Fig. 11 is a schematic view showing a lighting fixture adapter according to an embodiment of the present invention without a pull-up type wire holder inserted therein.

Fig. 12 is a schematic view showing that the adapter for a lighting apparatus according to the embodiment of the present invention is inserted into the pull-up type wire holder.

Fig. 13 is a plan view showing the pull-up type wire holder of fig. 12.

Fig. 14 is a plan view illustrating connection of a third blade of the pull-type wire holder of fig. 12 with a third terminal.

Fig. 15 is a plan view showing the connection of the first blade, the second blade, and the third blade of fig. 12 to the first terminal, the second terminal, and the third terminal.

Fig. 16 is a schematic view showing the housing of the pull-type wire holder of fig. 9, and a first connection target portion, a second connection target portion, and a third connection target portion.

Fig. 17 is a schematic view showing the adapter for a lighting apparatus of fig. 4 engaged with the pull-up type wire holder of fig. 9.

Fig. 18 is a schematic view showing a lighting fixture adaptor of fig. 5 engaged with a pull-up type wire holder according to another embodiment of the present invention.

Fig. 19 is a schematic view showing a region where a conductive member cannot be arranged in a case where the first position, the second position, and the third position are arranged on a straight line.

Fig. 20 is a schematic view showing a region where a conductive member cannot be arranged in a case where the first position, the second position, and the third position are arranged at 3 vertices of an isosceles triangle.

Detailed Description

Hereinafter, a pull-up type wire holder and a lighting fixture adaptor according to embodiments of the present invention will be described with reference to the drawings. The embodiments described below are all shown by way of general or specific examples. The numerical values, shapes, materials, constituent elements, arrangement positions of constituent elements, and connection modes shown in the following embodiments are illustrative, and are not intended to limit the scope of the present invention. Among the components in the following embodiments, those not recited in the independent claims expressed in the highest concept can be described as arbitrary components.

Each of the drawings is a schematic view, and is not intended to limit the present invention. In addition, in the drawings, substantially the same components are denoted by the same reference numerals, and redundant description may be omitted or simplified. In the following embodiments, the expression of characters such as "rough" includes errors in manufacturing of the article, dimensional tolerances, and the like.

In the following embodiments, the drawings used for description are indicated by coordinate axes. The Z-axis direction represents a vertical direction, or an axial direction, and the X-axis direction and the Y-axis direction represent directions perpendicular to each other on a plane perpendicular to the Z-axis direction, and the directions of the XY plane are also represented in a horizontal direction. Further, the radial direction of a circle formed on the XY plane at the center positions of the adapter for a lighting fixture and the pull-up type wire holder is represented by a radial direction, and the circumferential direction of the circle is represented by a circumferential direction. In the following embodiments, the top view refers to a view seen from the + Z axis or the-Z axis direction.

[ embodiment ]

Hereinafter, a lighting fixture according to an embodiment of the present invention will be described. Fig. 1 is an exploded view showing a lighting fixture according to an embodiment of the present invention. Fig. 2 is an enlarged view of a region II in fig. 1, and shows an external appearance of the adapter for a lighting apparatus and the pull-up type wire holder according to the embodiment of the present invention as viewed from below. Fig. 3 is an external perspective view of an adapter for a lighting apparatus and a pull-up type wire holder according to an embodiment of the present invention, as viewed from above. The pull-type wire holder 200 shown in fig. 3 includes only the first guide groove 231, the second guide groove 232, and the third guide groove 233 on the 1 st surface 211a facing the lighting fixture adapter 100, and other portions are omitted.

As shown in fig. 1 to 3, the lighting apparatus 300 includes an adapter 100 for a lighting apparatus, a hanging wire holder 200, an apparatus body 310,

light source units

320a and 320b, a connector 330, a cover 340, and a lamp cover 350. The fixture body 310 is provided with a mounting hole 360.

The fixture body 310 is provided with

light source units

320a and 320b and a connector 330 electrically connected to the

light source units

320a and 320 b. A circular mounting hole 360 is provided in the center of the fixture body 310.

The

light source units

320a and 320b are light sources each having a plurality of LEDs therein, and emit light toward (below) the lamp cover 350.

The connector 330 is a connector connected to the adapter 100 for a lighting fixture. The adapter 100 for a lighting fixture and the fixture body 310 are electrically connected by connecting the connector 330 to the adapter 100 for a lighting fixture.

The globe 350 is an optical member having light transmittance, and the shape of the globe 350 in a plan view is a rectangular shape having rounded corners. The lamp cover 350 is attached to the fixture body 310 so as to cover the lower surface of the fixture body 310. The top view shape of the lamp housing 350 may also be circular or other shapes.

The adapter 100 for a lighting apparatus is an adapter for connecting the plug wire holder 200 and the apparatus body 310 of the lighting apparatus 300. The lighting fixture adapter 100 includes a housing 110, and a first terminal 121 and a second terminal 122 each having an L-shaped cross section protrude from a1 st surface 111a of the housing 110. In a state where the first terminal 121 is inserted into the first guide groove 231 and the second terminal 122 is inserted into the second guide groove 232, the lighting apparatus adapter 100 is mounted to the pull-up type wire holder 200 by rotating the lighting apparatus adapter 100 in the mounting direction with respect to the pull-up type wire holder 200. In other words, the adapter 100 for lighting apparatus is mechanically and electrically connected to the plug-in wire holder 200.

Further, if the adapter 100 for a lighting fixture is rotated so that the first terminal 121 reaches the end of the first guide groove 231 and the second terminal 122 reaches the end of the second guide groove 232, the position of the projection 181 biased toward the hanging wire holder 200 overlaps the position of the second guide groove 232, and the projection 181 protrudes from the 1 st surface 111a of the housing 110 and is inserted into the second guide groove 232. In this state, the rotation of the adapter 100 for a lighting apparatus with respect to the pull-up type wire holder 200 is restricted. In other words, the adapter 100 for a lighting apparatus is locked in rotation with respect to the pull-up type wire holder 200.

A first locking member 131 and a second locking member 132 protrude from the side wall of the housing 110. The first locking member 131 and the second locking member 132 are biased from the inside to the outside of the housing 110 by an elastic member (not shown) housed in the housing 110.

The user presses the fixture body 310 upward so as to insert the housing 110 of the adapter 100 for a lighting fixture into the mounting hole 360. At this time, the inner peripheral surface of the mounting hole 360 abuts the inclined surfaces of the end portions of the first locking member 131 and the second locking member 132, and the first locking member 131 and the second locking member 132 are pushed inward of the housing 110 against the biasing force of the elastic member.

If the mounting holes 360 of the first and

second locking members

131 and 132 pass through, the contact between the inner peripheral surfaces of the mounting holes 360 and the inclined surfaces of the end portions of the first and

second locking members

131 and 132 is eliminated. As a result, the first locking member 131 and the second locking member 132 are urged by the elastic member in the housing 110 to protrude outward from the housing 110. Thus, the peripheral edge of the mounting hole 360 of the tool body 310 is locked to the first locking member 131 and the second locking member 132.

Thereafter, the user connects the connector 330 to the connector insertion port 150 provided on the lower surface side of the housing 110 of the lighting fixture adapter 100, and attaches the cover 340 and the lamp cover 350 covering the attachment hole 360 from the lower surface side. Thereby, the lighting fixture 300 is mechanically and electrically mounted on the pull-up type wire holder 200.

The lighting fixture 300 is removed as follows. The user first detaches the lamp housing 350 and the cover 340 and then removes the connector 330 from the connector insertion port 150.

Next, the user pulls the first and

second levers

161 and 162, respectively, from the central portion of the housing 110 toward the outside. In that case, the first locking member 131 and the second locking member 132 move to the inside of the housing 110. Thus, the user can remove the fixture body 310 from the adapter 100 for a lighting fixture.

Then, the user can release the lock by pushing the lock release button 140 to pull out the protrusion 181 from the second guide groove 232. When the user presses the lock release button 140 and rotates the adapter 100 for a lighting apparatus in a direction of detaching from the pull-up type wire holder 200, the adapter 100 for a lighting apparatus can be detached from the pull-up type wire holder 200.

However, a third terminal 123 protrudes from the 1 st surface 111a of the housing 110 in addition to the first terminal 121 and the second terminal 122. The third terminal 123 is a ground terminal and is inserted into the third guide groove 233 of the pull-up type wire holder 200. In this way, when the lighting fixture adapter 100 includes three terminals, the three terminals are disposed in the space to be examined in the housing 110. In the adapter 100 for a lighting fixture, three terminals are arranged so that the increase in size of the housing 110 can be suppressed. The arrangement of the terminals will be described later.

[ Structure of adapter for Lighting apparatus ]

Next, the structure of the adapter 100 for a lighting fixture will be described with reference to fig. 1 to 3 together with fig. 4 and 5. Fig. 4 is a schematic view of the adapter 100 for a lighting apparatus according to the embodiment of the present invention, as viewed from the horizontal direction. Fig. 5 is a schematic view of a lighting fixture adaptor 100 according to another embodiment of the present invention, as viewed from the horizontal direction.

The lighting fixture adaptor 100 includes a housing 110, a first terminal 121, a second terminal 122, a third terminal 123, a first locking member 131, a second locking member 132, a lock release button 140, a first lever 161, a second lever 162, an elastic member (not shown), and a lock portion (not shown).

The housing 110 is a substantially flat cylindrical member that houses the respective components of the adapter 100 for a lighting apparatus. The housing 110 has a1 st surface 111a facing the pull-up wire holder 200 and a2 nd surface 112a opposite to the 1 st surface 111 a. Specifically, the housing 110 includes a main body 111 on the 1 st surface 111a side and a cover 112 on the 2 nd surface 112a side.

The main body 111 is a bottomed substantially cylindrical (flat) member having a side opening on the 2 nd surface 112 a. The main body 111 is formed of, for example, an insulator resin material, and the main body 111 and the cover 112 constitute the housing 110 of the lighting device adaptor 100.

The main body 111 has a terminal insertion hole 111a1, a terminal insertion hole 111a2, and a terminal insertion hole 111a3 at a portion facing the connection base 200. One end 121a of the first terminal 121 protrudes from the terminal insertion hole 111a1, one end 122a of the second terminal 122 protrudes from the terminal insertion hole 111a2, and one end 123a of the third terminal 123 protrudes from the terminal insertion hole 111a 3.

In addition, an opening 111b is provided in a portion of the main body 111 facing the pull-up type wire holder 200. A protrusion 181 including a locking portion protrudes from the opening 111 b.

A first opening 111c1 and a second opening (not shown) are provided in the side wall portion of the body portion 111. The first locking member 131 protrudes from the first opening 111c1 toward the outside of the main body 111. The second locking member 132 protrudes from the second opening toward the outside of the body 111.

A connector insertion port 150 is provided inside the main body 111. The connector insertion port 150 is a portion that extends cylindrically from the inner surface of the portion of the main body 111 facing the plug-in wire holder 200 toward the 2 nd surface 112 a. Connector insertion port 150 is exposed to the outside from housing 110 through opening 112b provided in the center of cover 112, and is connected to connector 330 of appliance main body 310 so as to be easily inserted and removed. The shape of connector insertion opening 150 in plan view is a substantially T-shape, and connector 330 also has a shape corresponding thereto. The connector insertion port 150 is, for example, a recess provided on the 2 nd surface 112a side of the housing 110.

The cover 112 is a resin plate-like member that covers the lower surface side of the main body 111. The cover 112 constitutes a lower surface (connection surface) of the housing 110, and an opening 112b is provided in the center of the cover 112. From this opening 112b, the connector insertion port 150, and a first operated portion (not shown) of the first lever 161 and a second operated portion (not shown) of the second lever 162 are exposed to the outside.

The first terminal 121, the second terminal 122, and the third terminal 123 are plate-shaped metal components. The first terminal 121, the second terminal 122, and the third terminal 123 are fixed by screws inside the body portion 111. One end portion 121a of the first terminal 121 protrudes from the terminal insertion hole 111a1 provided in the housing 110. The other end 121b of the first terminal 121 is disposed in the connector insertion port 150. Similarly, one end portion 122a of the second terminal 122 protrudes from the terminal insertion hole 111a2 provided in the housing 110. The other end 122b of the second terminal 122 is disposed in the connector insertion opening 150. One end 123a of third terminal 123 protrudes from terminal insertion hole 111a3 provided in housing 110, and the other end 123b of third terminal 123 is disposed in connector insertion opening 150.

The first terminal 121 and the second terminal 122 are a pair of terminals for receiving power supply from the pull-up type wire holder 200 to the lighting fixture 300. One end 121a of the first terminal 121 is inserted into the first guide groove 231, and one end 122a of the second terminal 122 is inserted into the second guide groove 232, whereby the first terminal 121 and the second terminal 122 are electrically connected to a pair of power feeding terminals in the lead type wire holder 200. The lighting fixture 300 receives ac power from the pull-up type wire holder 200, for example, but may receive dc power.

One end portion 121a of the first terminal 121 and one end portion 122a of the second terminal 122 are bent in an L shape. In a state where the one end portion 121a of the first terminal 121 is inserted into the first guide groove 231 and the one end portion 122a of the second terminal 122 is inserted into the second guide groove 232, if the adapter 100 for a lighting apparatus is rotated, the adapter 100 for a lighting apparatus is caught on the pull-up type wire holder 200. In other words, the first terminal 121 and the second terminal 122 are also used for mechanically connecting the adapter 100 for a lighting apparatus to the pull-up type wire holder 200.

On the other hand, the third terminal 123 is a ground terminal. The third terminal 123 is electrically connected to the ground terminal in the pull-up type wire holder 200 by inserting one end 123a of the third terminal 123 into the third guide groove 233. Unlike the first terminal 121 and the second terminal 122, one end 123a of the third terminal 123 is not bent, and the third terminal 123 is not used for mechanical connection with the lighting fixture adapter 100. However, one end 123a of the third terminal 123 may be bent, and the third terminal 123 may be used for mechanical connection with the lighting fixture adapter 100.

The other end 121b of the first terminal 121, the other end 122b of the second terminal 122, and the other end 123b of the third terminal 123 are connected to the metal terminals in the connector 330 in a state where the connector 330 is connected to the connector insertion port 150.

The length of the portion of the one end 123a of the third terminal 123 protruding from the 1 st surface 111a may be longer than the length of the portion of the one end 121a of the first terminal 121 protruding from the 1 st surface 111a and the length of the portion of the one end 122a of the second terminal 122 protruding from the 1 st surface 111 a. The length here is more specifically the length in the Z-axis direction.

Thus, when the adapter 100 for a lighting apparatus is mounted on the pull-up type wire holder 200, the third terminal 123 serving as a ground terminal is electrically connected to the terminal in the pull-up type wire holder 200 more easily than the first terminal 121 and the second terminal 122. This can improve the safety when the adapter 100 for a lighting apparatus is attached to the pull-up type wire holder 200.

Similarly, the other end 123b of the third terminal 123 may protrude further toward the 2 nd surface 112a than the other end 121b of the first terminal 121 and the other end 122b of the second terminal 122.

Thus, when the fixture body 310 and the adapter 100 for a lighting fixture are electrically connected, the third terminal 123 serving as a ground terminal is electrically connected to the fixture body 310 more easily than the first terminal 121 and the second terminal 122. This can improve the safety when the fixture body 310 is attached to the adapter 100 for a lighting fixture.

As shown in fig. 4, the first terminal 121, the second terminal 122, and the third terminal 123 each have a first protrusion 121a1, a second protrusion 122a1, and a third protrusion 123a1, in which one

end

121a, 122a, 123a protrudes from a terminal insertion hole 111a1, 111a2, 111a3 provided in the 1 st surface 111a of the housing 110. The lengths H1, H2, and H3 of the first protrusion 121a1, the second protrusion 122a1, and the third protrusion 123a1 in the axial direction are slightly the same. In other words, H1 ═ H2 ═ H3. For example, the lengths H1, H2, and H3 of the first protrusion 121a1, the second protrusion 122a1, and the third protrusion 123a1 in the axial direction range from approximately 3.5 to 20 mm. In other words, 3.5< H1 ═ H2 ═ H3<20 mm. The lengths H1, H2, and H3 of the first protrusion 121a1, the second protrusion 122a1, and the third protrusion 123a1 in the axial direction may be in the range of 5 to 12 mm. In other words, 5< H1 ═ H2 ═ H3<12 mm. The lengths H1, H2, and H3 of the first protrusion 121a1, the second protrusion 122a1, and the third protrusion 123a1 in the axial direction may be in the range of 7 to 8 mm. In other words, 7< H1 ═ H2 ═ H3<8 mm.

The lengths H1, H2, and H3 of the first protrusion 121a1, the second protrusion 122a1, and the third protrusion 123a1 in the axial direction are substantially the same, whereby the adapter 100 for a lighting fixture can be formed to be thin. Further, since the adapter 100 for a lighting fixture is formed to be thin, it can be easily packaged.

Further, if the length H3 of the third protrusion 123a1 in the axial direction is shorter than the lengths H1 and H2 of the first protrusion 121a1 and the second protrusion 122a1 in the axial direction, the problem of insufficient clamping area occurs when the third protrusion 123a1 is inserted into the pull-up type wire holder 200 and contacts with the third to-be-connected portion 223b of the third blade 223 described later. In this case, the third connected portion 223b needs to be provided in a direction to approach the third protruding portion 123a1, and the problem arises that the third connected portion 223b has an insufficient insulation distance.

Therefore, compared to the case where the length H3 of the third protrusion 123a1 in the axial direction is shorter than the lengths H1, H2 of the first protrusion 121a1 and the second protrusion 122a1 in the axial direction, the lengths H1, H2, H3 of the first protrusion 121a1, the second protrusion 122a1, and the third protrusion 123a1 in the axial direction are almost the same, and the contact area between the third protrusion 123a1 and the third connected portion 223b of the third blade 223 described later can be ensured, and thus good insertability can be obtained.

Fig. 5 is another embodiment of the first tab 121a1, second tab 122a1, and third tab 123a 1' of the present invention. As shown in fig. 5, the third protrusion 123a 1' protrudes toward the 1 st surface 111a side more than the first protrusion 121a1 and the second protrusion 122a 1. In other words, the length H3 'of the third protrusion 123a 1' in the axial direction is longer than the lengths H1, H2 of the first protrusion 121a1 and the second protrusion 122a1 in the axial direction. In other words, H3 '> H2 or H3' > H1. For example, the length H3 'of the third protrusion 123a 1' in the axial direction is longer than the length H1 of the first protrusion 121a1 in the axial direction by a range of 0.1-10mm, or a range of 0.5-5mm, or a range of 1-3 mm. In other words, the relationship between length H3 'and length H1 is 0.1< H3' -H1<10mm, or 0.5< H3 '-H1 <5mm, or 1< H3' -H1<3 mm. Similarly, the length H3 'of the third protrusion 123a 1' in the axial direction is longer than the length H2 of the second protrusion 122a1 in the axial direction by a range of 0.1-10mm, or a range of 0.5-5mm, or a range of 1-3 mm. In other words, the relationship between length H3 'and length H2 is 0.1< H3' -H2<10mm, or 0.5< H3 '-H2 <5mm, or 1< H3' -H2<3 mm. In the present embodiment, the length H1 and the length H2 are slightly the same. In other words, the relationship between length H1 and length H2 is H1 ═ H2. However, the length H1 and the length H2 may have different lengths. The length H3 ' of the third protrusion 123a1 ' in the axial direction is longer than the lengths H1 and H2 of the first protrusion 121a1 and the second protrusion 122a1 in the axial direction, so that the third protrusion 123a1 ' can be aligned with the third guide groove 233 first when the adapter 100 for a lighting fixture is inserted into the pull-up type wire holder 200, and insertion can be facilitated. Further, the third blade receiver 223 of the pull-up type wire holder 200 can be disposed at a position distant from the 1 st surface 211a, and the insulation distance of the third blade receiver 223 can be increased.

As shown in fig. 4 and 5, the first protrusion 121a1 of the first terminal 121 has a bent portion 121a 11. The bent portion 121a11 can be used to hang the adapter 100 for a lighting apparatus on the pull-up type wire holder 200. The bent portion 121a11 of the first terminal 121 is a portion of the first terminal 121 that forms an angle with the axial direction in cross section in the axial direction. In the present embodiment, the bent portion 121a11 extends in the radial direction of the lighting fixture adapter 100. However, the bent portion 121a11 may extend in the horizontal direction or may extend at an angle with respect to the horizontal direction. As shown in fig. 5, the length L1 of the bent portion 121a11 in the radial direction may be the same as the length of the portion of the third protrusion 123a 1' protruding from the first protrusion 121a1 and the second protrusion 122a 1. In other words, length L1 may also be slightly equal to the difference between H3 'and H1, i.e., L1 ═ H3' -H1, or length L1 may also be slightly equal to the difference between H3 'and H2, i.e., L1 ═ H3' -H2. Accordingly, in the case where the third protrusion 123a1 ' also needs to be formed with a bent portion, the bent portion of the third protrusion 123a1 ' can be formed by directly bending the portion of the third protrusion 123a1 ' protruding from the first protrusion 121a1 and the second protrusion 122a 1.

The bent portion 121a11 has a terminal connection portion 121a12 formed at a portion extending in the radial direction of the lighting fixture adapter 100. In the present embodiment, the first terminal 121 is connected to the first to-be-connected portion 221b of the first blade 221, which will be described later, by a portion passing through the terminal connection portion 121a 12. By forming the terminal connecting portion 121a12 on the bent portion 121a11, an additional supporting force can be provided when the adapter 100 for a lighting fixture is engaged to the pull-up type wire holder 200. The terminal connection part 121a12 may be a hook formed in a hook shape. Thereby, the terminal connection portion 121a12 can be more reliably hooked on the first blade 221.

As shown in fig. 4 and 5, the terminal connecting portion 121a12 is formed in a shape with a center depressed. Specifically, the terminal connecting portion 121a12 is formed in a substantially V-shaped cross section in the radial direction. With such a shape, when the first terminal 121 is connected to the first blade 221, the first terminal 121 and the first connected portion 221b can be connected through the contact point of the bottom surface, whereby the first terminal 121 and the first connected portion 221b can be more reliably connected, and the stability of the connection of the adapter 100 for a lighting apparatus to the pull-up type wire holder 200 can be improved. However, the terminal connecting portion 121a12 may have an inverted V-shaped, U-shaped, inverted U-shaped cross section, or the like, and the terminal connecting portion 121a12 may have a flat plate shape without forming a recess in the cross section.

In the present embodiment, as shown in fig. 4 and 5, the cross-sectional shape of the first protrusion 121a1 in the axial direction is an inverted L shape. However, the cross section of the first protrusion 121a1 in the axial direction may be an inverted J shape, an inverted U shape, or the like. The first protrusion 121a1 may not have the bent portion 121a11, and may be connected to the first connected portion 221b of the first blade receiver 221 by the first protrusion 121a1 itself.

As shown in fig. 4 and 5, the second protrusion 122a1 of the second terminal 122 has a bent portion 122a 11. The bent portion 122a11 can be used to hang the adapter 100 for a lighting apparatus on the pull-up type wire holder 200. The bent portion 122a11 of the second terminal 122 is a portion of the second terminal 122 that forms an angle with the axial direction in cross section in the axial direction. In the present embodiment, the bent portion 122a11 extends in the radial direction of the lighting fixture adapter 100. However, the bent portion 121a11 may extend in the horizontal direction or may extend at an angle with respect to the horizontal direction. As shown in fig. 5, the length L2 of the bent portion 122a11 in the radial direction may be the same as the length of the portion of the third protrusion 123a 1' protruding from the first protrusion 121a1 and the second protrusion 122a 1. In other words, length L2 may also be slightly equal to the difference between H3 'and H1, i.e., L2 ═ H3' -H1, or length L2 may also be slightly equal to the difference between H3 'and H2, i.e., L2 ═ H3' -H2. Accordingly, in the case where the third protrusion 123a1 ' also needs to be formed with a bent portion, the bent portion of the third protrusion 123a1 ' can be formed by directly bending the portion of the third protrusion 123a1 ' protruding from the first protrusion 121a1 and the second protrusion 122a 1.

The bent portion 122a11 has a terminal connecting portion 122a12 formed at a portion extending in the radial direction of the lighting fixture adapter 100. In the present embodiment, the second terminal 122 is connected to a second connection receiving portion 222b of a second blade 222, which will be described later, through a portion of the terminal connection portion 122a 12. By forming the terminal connecting portion 122a12 on the bent portion 122a11, an additional supporting force can be provided when the adapter 100 for a lighting fixture is engaged with the pull-up type wire holder 200. The terminal connecting portion 122a12 may be a hook formed in a hook shape. Thereby, the terminal connecting portion 122a12 can be more reliably hooked on the second blade 222.

As shown in fig. 4 and 5, the terminal connecting portion 122a12 is formed in a shape with a center depressed. Specifically, the terminal connecting portion 122a12 is formed in a substantially V-shaped cross section in the radial direction. With such a shape, when the second terminal 122 is connected to the second blade 222, the first terminal 121 and the first connected portion 221b can be more stably connected by the contact point of the bottom surface and the first connected portion 221b, and the stability of the connection of the adapter 100 for a lighting apparatus to the pull-up type wire holder 200 can be improved. However, the terminal connecting portion 122a12 may have an inverted V-shaped, U-shaped, inverted U-shaped cross section, or the like, and the terminal connecting portion 122a12 may have a flat plate shape without having a recess formed in the cross section.

In the present embodiment, as shown in fig. 4 and 5, the cross-sectional shape of the second protrusion 122a1 in the axial direction is an inverted L shape. However, the cross section of the second projecting portion 122a1 in the axial direction may be an inverted J shape, an inverted U shape, or the like. The second protrusion 122a1 may not have the bent portion 122a11, and may be connected to the second connected portion 222b of the second blade 222 via the second protrusion 122a1 itself.

By forming the bent portions 121a11 and 122a11 in the first and

second terminals

121 and 122, respectively, additional supporting force can be provided when the first and

second terminals

121 and 122 are connected to the first and

second blades

221 and 222. In the present embodiment, the first terminal 121 and the second terminal 122 have similar configurations, but the first terminal 121 and the second terminal 122 may be configured differently depending on the use requirement.

As shown in fig. 4 and 5, the third protrusions 123a1, 123a1 'of the third terminals 123, 123' have a long and straight pin shape. In other words, no bent portion is formed at the third protrusions 123a1, 123a 1'. Since the adapter 100 for a lighting apparatus has three terminals, if the three terminals are all formed with the bent portions, the adapter 100 for a lighting apparatus becomes difficult to be inserted into the pull-up type wire holder 200. Therefore, in the present embodiment, the third protrusions 123a1, 123a 1' take the shape of long straight pins. Accordingly, when the adapter 100 for a lighting apparatus is inserted into the pull-up type wire holder 200, it is not necessary to align the three bending portions at the same time, and the insertion can be facilitated. In other words, the insertability of the adapter 100 for a lighting apparatus can be improved. The user can visually determine the positions of the third terminals 123 and 123', and can also know the insertion direction. Further, the third protrusions 123a1, 123a1 'are in the shape of long straight pins, and the insertion positions of the third protrusions 123a1, 123a 1' into the third insertion portion 233a can be easily positioned, so that the insertion of the adapter 100 for a lighting fixture into the pull-up type wire holder 200 becomes easy. However, one end 123a, 123a1 'of the third terminal 123, 123' may have a bent portion.

Further, in order to make the third protrusions 123a1, 123a1 ' more smoothly rotate in the third guide groove 233 described later, the cross-sectional shapes of the third protrusions 123a1, 123a1 ' as viewed from the 1 st surface 111a correspond to the shape of the third guide groove 233, in other words, the cross-sectional shapes of the third protrusions 123a1, 123a1 ' as viewed from the 1 st surface 111a are formed in a shape that can smoothly rotate in the third guide groove 233. For example, the cross-section of the third protrusion 123a1, 123a1 'of the third terminal 123, 123' in the radial direction may be square, fan-shaped, crescent-shaped, semicircular, circular arc-shaped, or the like. Thereby, the third terminals 123, 123' can be more smoothly rotated in the third guide groove 233 along the circumferential direction. In other words, the stability at the time of engagement can be increased. The cross-sectional shape of each of the first protrusion 121a1 and the second protrusion 122a1 when viewed from the 1 st surface 111a may correspond to the shape of the first guide groove 231 and the second guide groove 232, and may be any of a square shape, a fan shape, a crescent shape, a semicircular shape, an arc shape, and the like. Further, the sectional shapes of the first protrusion 121a1, the second protrusion 122a1, and the third protrusions 123a1, 123a 1' as viewed from the 1 st surface 111a may be any shapes corresponding to the first guide groove 231, the second guide groove 232, and the third guide groove 233 as long as they can be smoothly guided.

The first locking member 131 and the second locking member 132 are resin members for holding the fixture body 310 in the adapter 100 for a lighting fixture. In other words, the first locking member 131 and the second locking member 132 are members for locking the fixture body 310 to the adapter 100 for a lighting fixture.

The first locking member 131 is biased from the inside of the housing 110 to the outside by an elastic member, and protrudes from the first opening 111c1 to the outside of the housing 110. The second locking member 132 is biased from the inside of the housing 110 to the outside by an elastic member, and protrudes from the second opening to the outside of the housing 110.

The first locking member 131 is moved in the Y-axis direction by operating the first lever 161. The second locking member 132 is moved in the Y-axis direction by operating the second lever 162.

The first lever 161 and the second lever 162 are resin components for removing the fixture body 310 from the lighting fixture adapter 100.

The first lever 161 is a member for moving the first locking member 131 in the Y-axis direction.

The second lever 162 is a member for moving the second locking member 132 in the Y-axis direction.

The user can pull the first operated portion and the second operated portion outward from the central portion of the housing 110, respectively, to move the first locking member 131 and the second locking member 132 in the housing 110, thereby removing the fixture body 310 from the adapter 100 for a lighting fixture.

The locking portion is a component for restricting the movement of the adapter 100 for a lighting apparatus with respect to the pull-up type wire holder 200 while maintaining the state in which the adapter 100 for a lighting apparatus is normally attached to the pull-up type wire holder 200. The locking part is provided with a protrusion 181

When the lighting fixture adapter 100 is rotated so that the first terminal 121 reaches the end of the first guide groove 231 and the second terminal 122 reaches the end of the second guide groove 232, the position of the projection 181 overlaps the position of the second guide groove 232, and the projection 181 is projected from the 1 st surface 111a of the housing 110 by the biasing force (elastic force) of the coil spring and inserted into the second guide groove 232. In this state, the rotation of the adapter 100 for a lighting apparatus with respect to the pull-up type wire holder 200 is restricted. In other words, the adapter 100 for a lighting apparatus is locked in rotation with respect to the pull-up type wire holder 200.

In this way, the projection 181 protrudes from the opening 111b provided on the 1 st surface 111a side of the housing 110 and is inserted into the second guide groove 232 provided in the pull-up type wire holder 200, thereby restricting the movement of the adapter 100 for a lighting apparatus with respect to the pull-up type wire holder 200.

The lock release button 140 is a button provided on a side wall of the housing 110 for pulling down the protrusion 181 from the second guide groove 232. The lock release button 140 is a resin-made member, a part of which is positioned outside the housing 110 through a notch provided in a side wall of the housing 110.

If the user pushes the lock release button 140 into the housing 110, the protrusion 181 is pulled out from the second guide groove 232. Thereby, the restriction of the rotation of the adapter 100 for a lighting apparatus with respect to the pull-up type wire holder 200 is released. The user can remove the lighting apparatus adapter 100 from the pull-up type wire holder 200 by rotating the lighting apparatus adapter 100 with respect to the pull-up type wire holder 200 while pressing the lock release button 140.

[ Structure of hanging wire holder ]

Next, the structure of the pull-up wire holder 200 will be described with reference to fig. 6 to 10. Fig. 6 is an exploded perspective view of a pull-up wire holder 200 according to an embodiment of the present invention. Fig. 7 is an exploded perspective view of a pull-up wire holder 200 according to an embodiment of the present invention, as viewed from below. Fig. 8 is a perspective view showing a main body of a pull-type wire holder according to an embodiment of the present invention. Fig. 9 is a plan view showing that the pull-type wire holder of fig. 8 is provided with a first blade receiver 221, a second blade receiver 222, and a third blade receiver 223. Fig. 10 is a schematic view showing the arrangement relationship of the first blade receiver 221, the second blade receiver 222, and the third blade receiver 223 and the first guide groove 231, the second guide groove 232, and the third guide groove 233 in the pull-type wire holder of fig. 9. Fig. 9 is a schematic view as seen from the 2 nd surface 212a of the pull-up wire holder 200, and fig. 10 is a schematic view showing the relationship among the first guide groove 231, the second guide groove 232, and the third guide groove 233 of the 1 st surface 211a, the first cutting edge 221, the second cutting edge 222, and the third cutting edge 223, and the first guide groove 231, the second guide groove 232, and the third guide groove 233, which are protruded from fig. 9.

The wire holder 200 includes a housing 210, a first guide groove 231, a second guide groove 232, a third guide groove 233, a first blade 221, a second blade 222, and a third blade 223.

The housing 210 is a substantially flat cylindrical member that accommodates the respective components of the pull-up wire holder 200. The housing 210 has a1 st surface 211a facing the lighting fixture adapter 100 and a2 nd surface 212a opposite to the 1 st surface 211 a. Specifically, the housing 210 includes a body 211 on the 1 st surface 211a side and a cover 212 on the 2 nd surface 212a side.

The main body 211 is a substantially cylindrical (flat) member having a bottom and opening on the 2 nd surface 212 a. The body portion 211 is formed of, for example, an insulator resin material, and the body portion 211 and the cover 212 constitute the housing 210 of the pull-up type wire holder 200.

The main body 211 has a first guide groove 231, a second guide groove 232, and a third guide groove 233 provided at a portion facing the lighting fixture adapter 100. The first guide groove 231, the second guide groove 232, and the third guide groove 233 are used to insert the first terminal 121, the second terminal 122, and the third terminal 123 and guide the first terminal 121, the second terminal 122, and the third terminal 123 to be connected to the first blade 221, the second blade 222, and the third blade 223.

The first guide groove 231 is used for guiding the first terminal 121 to be engaged with the first blade 221. The first guide groove 231 is a groove extending in the circumferential direction provided on the 1 st surface 211a of the pull-up type wire holder 200. Specifically, the first guide groove 231 is formed along the circumferential direction with the center position C of the body portion 211 as the center. The first guide groove 231 has a first insertion portion 231a, a first guide portion 231b, and a first terminal portion 231 c. The first insertion portion 231a is for inserting the first terminal 121 therethrough, the first guide portion 231b is for guiding the engagement of the first terminal 121 with the first blade 221, and the first terminal portion 231c is a terminal end of the first guide groove 231 for restricting the advance of the first terminal 121.

The second guide groove 232 guides the second terminal 122 to engage with the second blade 222. The second guide groove 232 is a groove extending in the circumferential direction provided on the 1 st surface 211a of the pull-up type wire holder 200. Specifically, the second guide groove 232 is formed along the circumferential direction with the center position C of the body portion 211 as the center. The second guide groove 232 has a second insertion portion 232a, a second guide portion 232b, and a second terminal portion 232 c. The second insertion portion 232a is for inserting the second terminal 122, the second guide portion 232b is for guiding the engagement of the second terminal 122 with the second blade 222, and the second terminal portion 232c is the end of the second guide portion 232b for restricting the advance of the second terminal 122.

In the present embodiment, the width of the first insertion portion 231a is larger than the width of each of the first guide portion 231b and the first end portion 231c, and the width of the second insertion portion 232a is larger than the width of each of the second guide portion 232b and the second end portion 232 c. In other words, the first and

second insertion portions

231a and 232a have wider diameters than the first and

second guide portions

231b and 232c, respectively. Specifically, the first insertion portion 231a and the second insertion portion 232a have a diameter width that allows the first terminal 121 and the second terminal 122 to be inserted therethrough in the axial direction. Thereby, when the first terminal 121 and the second terminal 122 are inserted, the insertion can be made easier. The user can visually determine the positions of the first insertion portion 231a and the second insertion portion 232 a. However, the widths of the first insertion portion 231a, the first guide portion 231b, and the first terminal portion 231c, and the widths of the second insertion portion 232a, the second guide portion 232b, and the second terminal portion 232c may be arbitrarily adjusted according to the use requirements.

The first insertion portion 231a and the second insertion portion 232a have different shapes when viewed from the 1 st surface 211a side. In other words, the first insertion portion 231a and the second insertion portion 232a have different shapes in the plan view from the 1 st surface 211a side. In the present embodiment, the first insertion portion 231a is a pentagon and the second insertion portion 232a is a quadrangle when viewed from the 1 st surface 211a side. Since the first insertion portion 231a and the second insertion portion 232a have different shapes, the respective positions of the first guide groove 231 and the second guide groove 232 can be easily distinguished, the respective insertion positions of the first terminal 121 and the second terminal 122 can be more accurately determined when the first terminal 121 and the second terminal 122 are inserted, and the positions of the terminals having different polarities can be accurately determined when the first terminal 121 and the second terminal 122 are terminals having different polarities. However, the first and

second insertion portions

231a and 232a may have any shape as long as the first and

second terminals

121 and 122 can be inserted therein. The first insertion portion 231a and the second insertion portion 232a may have the same shape. In the present embodiment, the first insertion portion 231a and the second insertion portion 232a are formed in such a shape that the first protrusion 121a1 and the second protrusion 122a1 of each of the first terminal 121 and the second terminal 122 can be inserted thereinto, when viewed from the 1 st surface 211a side. Therefore, the shapes of the first insertion portion 231a and the second insertion portion 232a can also be adjusted according to the shapes of the first protrusion 121a1 and the second protrusion 122a1 when viewed from the 1 st surface 111a of the lighting fixture adapter 100.

The third guide groove 233 is used to guide the third terminal 123 to engage with the third blade receiver 223. The third guide groove 233 is a groove extending in the circumferential direction provided on the 1 st surface 211a of the pull-up type wire holder 200. Specifically, the third guide groove 233 is formed along the circumferential direction with the center position C of the body portion 211 as the center. The third guide groove 233 has a third insertion portion 233a, a third guide portion 233b, and a third terminal portion 233 c. The third insertion portion 233a is for inserting the third terminal 123, the third guide portion 233b is for guiding the engagement of the third terminal 123 with the third blade 223, and the third terminal portion 233c is a terminal end of the third guide groove 233 for regulating the advance of the third terminal 123.

The third guide groove 233 has a slightly same radial width, unlike the first guide groove 231 and the second guide groove 232. In other words, the third insertion portion 233a, the third guide portion 233b, and the third terminal portion 233c have approximately the same radial width. The third insertion portion 233a has a diameter wide enough to allow the third terminal 123 to be inserted therethrough in the axial direction. However, the third insertion portion 233a may have a wider diameter than the third guide portion 233b and the third terminal portion 233 c.

The first guide groove 231, the second guide groove 232, and the third guide groove 233 may be formed in any shape as long as they can guide the first terminal, the second terminal 121, the second terminal 122, and the third terminal 123 to be engaged with the first blade 221, the second blade 222, and the third blade 223, respectively.

The first blade receiver 221, the second blade receiver 222, and the third blade receiver 223 are plate-shaped metal components. The first blade receiver 221, the second blade receiver 222, and the third blade receiver 223 may be fixed to the inside of the body 211 by the positioning portion 213, or may be fixed by a member such as a screw. As shown in fig. 6, one end 221c of the first blade receiver 221 includes a first connected portion 221b described below, one end 222c of the second blade receiver 222 includes a second connected portion 222b described below, and one end 223c of the third blade receiver 223 includes a third connected portion 223b described below.

The first blade 221 and the second blade 222 are a pair of blades for receiving power supply from the pull-up type wire holder 200 through the first terminal 121 and the second terminal 122 of the adapter 100 for a lighting apparatus 300. Thereby, the first blade 221 and the second blade 222 are electrically connected to the first terminal 121 and the second terminal 122. The lighting fixture 300 receives ac power from the pull-up type wire holder 200, for example, but may receive dc power.

On the other hand, the third cutting edge 223 is a ground cutting edge. The third terminal 123 is electrically connected to the third blade 223 in the pull-up type wire holder 200 by inserting one end 123a of the third terminal 123 into the third guide groove 233.

The first blade receiver 221 has a first base portion 221a and a first connected portion 221 b. The first connected portion 221b is formed extending from the first base portion 221a in the circumferential direction. In the present embodiment, the first connection receiving portion 221b is formed by 2 opposed blades having a width, with a gap G1 in the axial direction, and is engaged with the first terminal 121 at a gap G1. Specifically, in the present embodiment, the first terminal 121 and the first connection-receiving portion 221b are connected by the terminal connecting portion 121a12 of the first terminal 121 entering the gap G1 of the first connection-receiving portion 221 b. In the present embodiment, the width direction WD1 of the first connected portion 221b is arranged along the radial direction. In other words, the normal direction of the contact surface between the first terminal 121 and the first connected part 221b is parallel to the axial direction, so that when the first terminal 121 is connected to the first connected part 221b, the first terminal 121 can be hung on the first connected part 221b in the gravity direction (axial direction), and not only mechanical connection but also electrical connection can be provided. Further, the attachment stability can be increased by hanging the adapter 100 for a lighting apparatus itself in the direction of gravity.

The first base 221a is provided on the housing 210 to position the first blade receiver 221. In the present embodiment, the first base portion 221a is formed in an L-shape. However, the first base portion 221a may be formed in any shape.

The second blade receiver 222 has a second base portion 222a and a second connected portion 222 b. The second connected portion 222b is formed extending from the second base portion 222a in the circumferential direction. The first connection receiving portion 221b is formed by 2 opposing blades having a width with a gap G2 in the axial direction, and engages with the second terminal 122 at a gap G2. Specifically, in the present embodiment, the second terminal 122 is connected to the second connection-receiving portion 222b by the terminal connection portion 122a12 of the second terminal 122 entering the gap G2 of the second connection-receiving portion 222 b. In the present embodiment, the width direction WD2 of the second connected portion 222b is arranged along the radial direction. In other words, the normal direction of the contact surface between the second terminal 122 and the second connected portion 222b is parallel to the axial direction, so that when the second terminal 122 is connected to the second connected portion 222b, the second terminal 122 can be hung on the second connected portion 222b in the gravity direction (axial direction), and thus not only mechanical connection but also electrical connection can be provided. Further, the attachment stability can be increased by hanging the adapter 100 for a lighting apparatus itself in the direction of gravity.

The second base 222a is provided on the housing 210 to position the second blade 222. In the present embodiment, the second base portion 222a is formed in an L-shape. However, the second base portion 222a may be formed in any shape.

The third blade receiver 223 has a third base portion 223a and a third connected portion 223 b. The third connected portion 223b is formed extending from the third base portion 223a in the circumferential direction. The third connection portion 223b is formed by 2 opposed blades having a width, with a gap G3 in the radial direction, and is engaged with the third terminal 123 through a gap G3. Specifically, in the present embodiment, the third terminal 123 and the third connection-receiving portion 223b are connected by the third protrusion 123a1 of the third terminal 123 entering the gap G3 of the third connection-receiving portion 223 b. In the present embodiment, the width direction WD3 of the third connected portion 223b is arranged along the axial direction. In other words, the normal direction of the contact surface between the third terminal 123 and the third connected portion 223b is parallel to the radial direction, and therefore, when the third terminal 123 is connected to the third connected portion 223b, the connection between the third terminal 123 and the third connected portion 223b can be smoothly made along the opening portion 223b1, the inducing portion 223b2, and the engaging portion 223b3 and the third connected portion 223b along the engaging direction. In the present embodiment, the third terminal 123 has a long and straight pin shape, and has no bent portion, and insertion and engagement can be facilitated as compared with the case where the bent portions are formed in all of the first terminal 121, the second terminal 122, and the third terminals 123 and 123'.

The third base 223a is provided on the housing 210 to position the third blade receiver 223. In the present embodiment, the third base 223a is formed in an inverted u shape. However, the third base 223a may be formed in any shape.

The third connection target portion 223b has an opening portion 223b1, a guide portion 223b2, and an engagement portion 223b 3. As shown in fig. 10, the engaging portion 223b3 is disposed at a position corresponding to the third terminal end 233c of the third guide groove 233, and the guiding portion 223b2 and the opening portion 223b1 are disposed at positions corresponding to the third guide portion 233b of the third guide groove 233 in the plan view. The opening 223b1 does not extend to the position of the third insertion portion 233a in the plan view. However, the opening 223b1 may extend to the position of the third insertion portion 233 a. In this case, the opening 223b1 may be formed in a shape sufficient for the third terminal 123 to be inserted through and to advance to the inductive portion 223b2 through the opening 223b 1. With the above configuration, it is possible to ensure that the third terminal 123 can be connected to the third connected portion 223b first after being inserted into the third insertion portion 233 a. Accordingly, if the third terminal 123 and the third blade 223 are set as the ground terminal and the ground blade, respectively, the third terminal 123 can be connected to the third connected portion 223b after being inserted into the third insertion portion 233a, and safety in mounting the fixture body 310 to the adapter 100 for a lighting fixture can be improved.

As shown in fig. 10, the distance D3 between the third cutting edge 223 and the third insertion portion 233a is shorter than the distance D1 between the first cutting edge 221 and the first insertion portion 231a and the distance D2 between the second cutting edge 222 and the second insertion portion 232 a. As shown in fig. 10, an angle θ 3 between the third cutting edge 223 and the third insertion portion 233a with respect to the center position C is smaller than an angle θ 1 between the first cutting edge 221 and the first insertion portion 231a with respect to the center position C and an angle θ 2 between the second cutting edge 222 and the second insertion portion 232a with respect to the center position C. The distance here is more specifically a distance from the center positions of the first, second, and

third insertion portions

231a, 232a, and 233a to the first, second, and

third cutting edges

221, 222, and 223; the angle here is more specifically an angle between the center positions of the first, second, and

third insertion portions

231a, 232a, and 233a and the center position C of the first, second, and

third cutting edges

221, 222, and 223. Accordingly, when the third terminal 123 is inserted into the third insertion portion 233a and then the third terminal 123 is rotated, the third terminal 123 can be preferentially connected to the third blade 223. If the third terminal 123 and the third blade 223 are set as the ground terminal and the ground blade, respectively, the third terminal 123 can be connected to the third connected portion 223b after being inserted into the third insertion portion 233a, and safety in mounting the fixture body 310 to the adapter 100 for a lighting fixture can be improved.

Further, since the engaging portion 223b3 is disposed at a position corresponding to the third terminal portion 233c of the third guide groove 233, when the third terminal 123 is engaged with the engaging portion 223b3, the third terminal portion 233c can restrict the third terminal 123 from advancing, and the third terminal 123 can be stably engaged with the engaging portion 223b 3. Further, as shown in fig. 10, in the present embodiment, the third terminal portion 233c does not extend to the third base portion 223a, whereby the third terminal 123 can be restricted from advancing by the third terminal portion 233c when engaged with the engaging portion 223b 3.

The opening 223b1 is for receiving the third terminal 123 and guiding the third terminal 123 to the inducing portion 223b2, the inducing portion 223b2 is for inducing the third terminal 123 to the engaging portion 223b3, and the engaging portion 223b3 is for engaging the third terminal 123.

As shown in fig. 10, the opening 223b1 is disposed at a position adjacent to the third insertion portion 233a of the third guide groove 233. The opening 223b1 is formed in a shape that opens toward the third insertion portion 233 a. When viewed from the 2 nd surface 212a, the opening portions 223b1 are formed so that the distance increases from the side of the induction portion 223b2 toward the direction opposite to the sandwiching direction (engagement direction) in which the third terminal 123 is sandwiched (engaged) in the third connected portion 223 b. Accordingly, the third terminal 123 can pass through the opening 223b1 more easily, and the impact on the third blade 223 when the third terminal 123 passes through the opening 223b1 can be reduced. Specifically, when viewed from the 2 nd surface 212a, the opening angle formed by the 2 blades of the opening 223b1 may be 30 to 150 degrees, 45 to 120 degrees, or 60 to 90 degrees. However, the opening angle formed by the 2 blades of the opening 223b1 can be arbitrarily adjusted as required as long as the third terminal 123 can more easily pass through the opening 223b 1.

The guiding portion 223b2 extends from the opening portion 223b1 in the engaging direction and is connected to the engaging portion 223b 3. The inductive portions 223b2 are formed so that the intervals in the engaging direction become smaller. Accordingly, when the third terminal 123 passes through the guiding portion 223b2, an extra clamping force is generated by being clamped by the guiding portion 223b2, and when a user engages the adapter 100 for a lighting apparatus with the pull-up type wire holder 200, the user can feel the clamping force, and further, the user can know that the engagement process is surely performed, and the user can feel the actual feeling during the engagement.

The engaging portion 223b3 extends from the inducing portion 223b2 toward the engaging direction, and is connected to the third base portion 223 a. The engaging portions 223b3 are formed so that the interval increases in the engaging direction. Thus, when the third terminal 123 enters the engaging portion 223b3 from the guiding portion 223b2, it can be known that the third terminal 123 is located in the engaging portion 223b 3. Further, since the engagement portion 223b3 is disposed at a position corresponding to the third terminal portion 233c of the third guide groove 233, the third terminal 123 can be stably held in the engagement portion 223b3 by the third terminal 123 abutting against the third terminal portion 233 c.

Further, when viewed from the 2 nd surface 212a, the guiding portion 223b2 and the engaging portion 223b3 are formed in a substantially hourglass shape with a narrow gap in the middle. Due to the hourglass shape, when the third terminal 123 reaches the engaging portion 223b3 through the guiding portion 223b2, a click feeling occurs from the third connected portion 223b being pushed open to the restoration, and thus, the user can know that the lighting apparatus adapter 100 is stably engaged with the pull-up type wire holder 200. However, as long as the third terminal 123 can be induced and engaged, the shapes of the inducing portion 223b2 and the engaging portion 223b3 can be arbitrarily adjusted as required. .

The third base 223a has an enlarged portion 223a1 formed at a position where it is connected to the engagement portion 223b3 of the third connected portion 223 b. The enlarged portions 223a1 are formed so that the interval increases in the engaging direction. Accordingly, since the enlarged portions 223a1 are formed such that the interval in the engaging direction increases, the angle formed by the place where the enlarged portions 223a1 and the third base portion 223a are connected decreases, and the opening and closing angle between the third base portion 223a and the enlarged portions 223b4a1 caused by the movement of the third terminal 123 in and out decreases. Therefore, the amount of deformation of the third base 223a caused by the opening and closing of the third blade receiver 223 when engaging with the third terminal 123 can be reduced by the absorption of the enlarged portion 223b4a 1. Thereby, fatigue deformation or breakage of the third cutting edge 223 due to long-term use can be reduced.

In the present embodiment, the third connection-receiving portion 223b includes an opening portion 223b1, a guide portion 223b2, and an engagement portion 223b 3. However, the first connected portion 221b and the second connected portion 222b may also be formed with an opening portion 223b1, a guide portion 223b2, and an engaging portion 223b3 similar to the third connected portion 223 b.

The housing 210 is further provided therein with a positioning portion 213 for positioning the first blade receiver 221, the second blade receiver 222, and the third blade receiver 223. In the present embodiment, the positioning portion 213 is a convex portion formed on the inner wall of the housing 210. As shown in fig. 8 and 9, the positioning portion 213 is formed on the inner wall of the housing 210 to determine the arrangement position of the third base portion 223a of the third blade receiver 223. A plurality of positioning portions 213 may be formed. As shown in fig. 8 and 9, the plurality of positioning portions 213 are formed around the third blade receiver 223, so that the position of the third blade receiver 223 can be fixed to prevent the third blade receiver 223 from moving or rotating relative to the housing 210. As shown in fig. 9, the positioning portions 213 are formed on both sides of each of the first, second, and

third cutting edges

221, 222, and 223, respectively. The positions of the first blade receiver 221, the second blade receiver 222, and the third blade receiver 223 can be respectively positioned by the positioning parts 213 on one side, and the sliding or rotation of the first blade receiver 221, the second blade receiver 222, and the third blade receiver 223 can be respectively prevented by the positioning parts 213 on both sides. In the present embodiment, the positioning portion 213 is formed integrally with the housing 210 on the inner wall of the housing 210, but the positioning portion 213 may be formed separately from the housing 210, and positioning may be performed by an additional positioning protrusion or a positioning element.

The inner wall of the housing 210 is further provided with a restricting portion 215 which is provided on the inner wall of the housing 210 so as to restrict the third blade receiver 223 from being excessively deformed. In other words, the housing 210 is formed with the regulating portion 215 for suppressing the interval of the third cutting edge 223 so that the third cutting edge 223 is not excessively deformed. In the present embodiment, the restricting portion 215 is a convex portion formed on the inner wall of the housing 210. As shown in fig. 8 and 9, the restriction portion 215 is formed between the inner wall of the housing 210 and the third blade receiver 223. The third connected portion 223b of the third cutting edge 223 is disposed between the limiting portion 215 and the center position C of the housing 210. In the present embodiment, the restricting portion 215 is formed integrally with the housing 210 on the inner wall of the housing 210, but the restricting portion 215 may be formed separately from the housing 210.

As shown in fig. 9, the restricting portion 215 and the third connection-receiving portion 223b are disposed with a gap G4 therebetween. When the blade of the third connected portion 223b is opened to a certain extent, the third connected portion 223b comes into contact with the limiting portion 215, whereby the limiting portion 215 can suppress excessive deformation of the third connected portion 223 b. Further, the positioning portion 213 may be formed in plural numbers, for example, between the third connected portion 223b and the inner wall of the case 210 and between the third connected portion 223b and the center position C of the case 210, whereby excessive deformation of the third connected portion 223b can be more reliably prevented.

The restriction portion 215 is formed, for example, the restriction portion 215 may be a convex portion formed between the inner wall of the housing 210 and the third cutting edge 223. However, the restricting portion 215 may have any form as long as it can restrict the third cutting edge portion 223 from being excessively deformed. In the present embodiment, as shown in fig. 8 and 9, the restricting portion 215 is formed between the guide portion 223b2 of the third cutting edge 223 and the inner wall of the housing 210, and is formed at a distance from the guide portion 223b 2. However, the restricting portion 215 may be formed between the opening portion 223b1 of the third blade receiver 223 and the inner wall of the housing 210, or may be formed between the engaging portion 223b3 of the third blade receiver 223 and the inner wall of the housing 210.

Further, the inner wall of the housing 210 may be provided with a restricting portion for restricting excessive deformation of the first blade receiver 221 and the second blade receiver 222. In this case, the restricting portion can have a similar configuration to the restricting portion 215.

[ procedure for engaging an adapter for a lighting apparatus with a lead-on wire holder ]

Next, a process of engaging the lighting apparatus adapter 100 with the pull-up wire holder 200 will be described with reference to fig. 11 to 15. Fig. 11 is a schematic view showing the adapter 100 for a lighting apparatus according to the embodiment of the present invention without inserting the pull-up type wire holder 200. Fig. 12 is a schematic view showing the adapter 100 for a lighting apparatus according to an embodiment of the present invention inserted into the pull-up type wire holder 200. Fig. 13 is a plan view showing the pull-up type wire holder 200 of fig. 12. Fig. 14 is a plan view illustrating the connection between the third blade receiver 223 and the third terminal 123 of the pull-up wire holder 200 of fig. 12. Fig. 15 is a plan view showing the connection of the first blade receiver 221, the second blade receiver 222, and the third blade receiver 223 to the first terminal 121, the second terminal 122, and the third terminal 123 in fig. 12.

The hanging wire holder 200 is mounted on a ceiling or the like at a position above in a use state. As shown in fig. 11, the pull-up wire holder 200 is mounted on the ceiling with the 1 st surface 211a facing downward. At this time, the user holds the adapter 100 for a lighting fixture by hand, and aligns the first protrusion 121a1, the second protrusion 122a1, and the third protrusion 123a1 of the first terminal 121, the second terminal 122, and the third terminal 123 of the adapter 100 for a lighting fixture with the first insertion portion 231a, the second insertion portion 232a, and the third insertion portion 233a of the first guide groove 231, the second guide groove 232, and the third guide groove 233, respectively, of the pull-in type wire holder 200, and further inserts the first protrusion 121a1, the second protrusion 122a1, and the third protrusion 123a1 into the first insertion portion 231a, the second insertion portion 232a, and the third insertion portion 233a, respectively.

As shown in fig. 13, when viewed from the 1 st surface 111a of the adapter 100 for a lighting apparatus or the 2 nd surface 212a of the hanging wire holder 200, each of the first protrusion 121a1, the second protrusion 122a1, and the third protrusion 123a1 is arranged on the circumference of a single imaginary circle C1, and the imaginary circle C1 may be an imaginary circle having any center as a center, and preferably, a point located on a perpendicular bisector of the first protrusion 121a1 and the second protrusion 122a1 is an imaginary circle. In the present embodiment, the virtual circle C1 is a virtual circle formed around the center position C of the lighting fixture adapter 100. The first insertion portion 231a, the second insertion portion 232a, and the third insertion portion 233a of the pull-up type wire holder 200 can also have corresponding arrangement positions corresponding to the first protrusion 121a1, the second protrusion 122a1, and the third protrusion 123a1 of the lighting apparatus adapter 100.

After the first protrusion 121a1, the second protrusion 122a1, and the third protrusion 123a1 are inserted into the first insertion portion 231a, the second insertion portion 232a, and the third insertion portion 233a, respectively, as shown in fig. 12, the 1 st surface 111a of the adapter 100 for a lighting apparatus abuts against the 1 st surface 211a of the pull-up type wire holder 200, and the degree of freedom of insertion of the adapter 100 for a lighting apparatus into the pull-up type wire holder 200 in the insertion direction is restricted by the 1 st surface 111a of the adapter 100 for a lighting apparatus and the 1 st surface 211a of the pull-up type wire holder 200.

At this time, as shown in fig. 13, the first protrusion 121a1, the second protrusion 122a1, and the third protrusion 123a1 are located on the first insertion portion 231a, the second insertion portion 232a, and the third insertion portion 233a, respectively. In this state, the first protrusion 121a1, the second protrusion 122a1, and the third protrusion 123a1 are not yet connected to the first connected part 221b, the second connected part 222b, and the third connected part 223b, respectively. However, the third connected part 223b can be provided to be connected with the third protruding part 123a1 when the third protruding part 123a1 is inserted into the third insertion part 233 a. In other words, the third connected portion 223b can extend to the position of the third insertion portion 233a as viewed from the 2 nd surface 212 a. In this case, the opening portion 223b1 of the third connected portion 223b can be formed with a shape into which the third protruding portion 123a1 is inserted in the axial direction. With this arrangement, when the adapter 100 for a lighting apparatus is inserted into the pull-up type wire holder 200, the third protrusion 123a1 can be surely connected to the third connected portion 223b, whereby safety when the adapter 100 for a lighting apparatus is engaged with the pull-up type wire holder 200 can be ensured in a case where the third terminal 123 and the third blade 223 are set as the ground terminal and the ground blade, respectively.

Next, as shown in fig. 14, the first protrusion 121a1, the second protrusion 122a1, and the third protrusion 123a1 are rotated in the counterclockwise direction along the first guide portion 231b, the second guide portion 232b, and the third guide portion 233b of the first guide groove 231, the second guide groove 232, and the third guide groove 233, respectively, and the first protrusion 121a1, the second protrusion 122a1, and the third protrusion 123a1 are connected to the first connected part 221b, the second connected part 222b, and the third connected part 223b, respectively. In the present embodiment, as shown in fig. 14, when the first protrusion 121a1, the second protrusion 122a1, and the third protrusion 123a1 are connected to the first connected portion 221b, the second connected portion 222b, and the third connected portion 223b, respectively, the third protrusion 123a1 is connected to the third connected portion 223b first, and thereafter, the first protrusion 121a1 and the second protrusion 122a1 are connected to the first connected portion 221b and the second connected portion 222b, respectively. Accordingly, when the third terminal 123 and the third blade 223 are set as the ground terminal and the ground blade, respectively, the safety of the lighting apparatus adapter 100 when it is engaged with the pull-up wire holder 200 can be ensured.

Finally, as shown in fig. 15, the lighting apparatus adapter 100 is rotated counterclockwise with respect to the pull-up type wire holder 200 so that the third protrusion 123a1 advances to the engaging portion 223b3 along the opening portion 223b1 and the guide portion 223b2 of the third connected portion 223b, and the first protrusion 121a1 and the second protrusion 122a1 are engaged with the first blade 221 and the second blade 222. This realizes the process of engaging the adapter 100 for a lighting apparatus with the pull-up type wire holder 200.

As shown in fig. 13, in a state where the first protrusion 121a1, the second protrusion 122a1, and the third protrusion 123a1 are inserted into the first insertion portion 231a, the second insertion portion 232a, and the third insertion portion 233a, respectively, the distance D3a between the third blade receiver 223 and the third protrusion 123a1 is shorter than the distance D1a between the first blade receiver 221 and the first protrusion 121a1, and is shorter than the distance D2a between the second blade receiver 222 and the second protrusion 122a 1. As shown in fig. 13, the third insertion portion 233a is rotated in the circumferential direction by a rotation angle θ 3a connected to the third cutting edge 223, which is smaller than the rotation angle θ 1a of the first insertion portion 231a connected to the first cutting edge 221 in the circumferential direction, and the rotation angle θ 2a of the second insertion portion 232a connected to the second cutting edge 222 in the circumferential direction. The distance herein is more specifically a distance from the center position of the first protrusion 121a1, the second protrusion 122a1, and the third protrusion 123a1 to the first edge receiver 221, the second edge receiver 222, and the third edge receiver 223; the angle here more specifically means a rotation angle at which the first protrusion 121a1, the second protrusion 122a1, and the third protrusion 123a1 rotate to be connected to the first blade receiver 221, the second blade receiver 222, and the third blade receiver 223.

In the present embodiment, the adapter 100 for a lighting apparatus is engaged with the pull-up type wire holder 200 in an engaging direction rotating counterclockwise as viewed from the 1 st surface 111 a. However, the engagement direction may be clockwise. Further, the pull-up type wire holder 200 may be engaged by sliding in a horizontal direction, a vertical direction, or the like. In other words, any engagement direction is acceptable as long as the adapter 100 for a lighting apparatus can be engaged with the pull-up type wire holder 200.

[ State in which adapter for lighting apparatus is engaged with lead-on wire holder ]

Next, a state in which the lighting fixture adapter 100 is engaged with the pull-up type wire holder 200 will be described with reference to fig. 16 to 18. Fig. 16 is a schematic view showing the horizontal direction of the 1 st surface 211a, the first connection target portion, the second connection target portion, and the third connection target portion of the housing 210 of the pull-type wire holder of fig. 9. Fig. 17 is a schematic view showing the adapter for a lighting apparatus of fig. 4 engaged with the pull-up type wire holder of fig. 16. Fig. 18 is a schematic view showing the lighting fixture adaptor of fig. 5 engaged with the 1 st surface 211a, the first connection-receiving portion 221b, the second connection-receiving portion 222b, and the third connection-receiving portion 223 b' of the housing 210 of the pull-up type wire holder according to another embodiment of the present invention in the horizontal direction.

As shown in fig. 16, the first to-be-connected portion 221b, the second to-be-connected portion 222b, and the third to-be-connected portion 223b of the first blade edge 221, the second blade edge 222, and the third blade edge 223 are each formed by 2 opposing blade pieces having a width extending in the circumferential direction. However, the blades of the first blade receiver 221 and the second blade receiver 222 are formed at intervals of G1 and G2 in the axial direction, respectively; the blades of the third connecting part 223b are formed at intervals G3 in the radial direction. Therefore, the width direction WD3 of the third connected portion 223b is different from the width direction WD1 of the first connected portion 221b and the width direction WD2 of the second connected portion 222 b. In other words, the width direction WD3 of the third connected portion 223b forms an angle with the width direction WD1 of the first connected portion 221b and the width direction WD2 of the second connected portion 222 b. In the present embodiment, the width direction WD1 of the first connected portion 221b and the width direction WD2 of the second connected portion 222b are parallel to the radial direction, and the width direction WD3 of the third connected portion 223b is parallel to the axial direction. Accordingly, when the first protrusion 121a1 and the second protrusion 122a1 are engaged with the first blade 221 and the second blade 222, the terminal connecting portion 121a12 and the terminal connecting portion 122a12 can be engaged with the first connected portion 221b and the second connected portion 222b, respectively, and the first connected portion 221b and the second connected portion 222b, which are parallel to the width direction and the radial direction, provide a supporting force in the vertical direction, i.e., in the direction of gravity, thereby providing a supporting force to support the adapter 100 for a lighting fixture and to support the components such as the fixture body 310 to be mounted thereafter, and preventing the adapter 100 for a lighting fixture and the components such as the fixture body 310 from falling down.

As shown in fig. 17, corresponding to the adapter 100 for a lighting fixture of fig. 4, the pull-up wire holder 200 of the present embodiment is used to connect the first terminal 121, the second terminal 122, and the third terminal 123 of the adapter 100 for a lighting fixture, in which the heights of the one

end portions

121a, 122a, and 123a are substantially the same, to the first connection target portion 221b, the second connection target portion 222b, and the third connection target portion 223b, respectively, via the first guide groove 231, the second guide groove 232, and the third guide groove 233, respectively. As shown in fig. 17, the third connected portion 223b is closer to the 1 st surface 211a side than the first connected portion 221b and the second connected portion 222b, whereby the contact between the third terminal 123 and the third connected portion 223b can be ensured. Specifically, as shown in fig. 17, the lower edge 223b1b of the third coupled portion 223b is closer to the 1 st surface 211a side than the lower edge 221b1b of the first coupled portion 221b and the lower edge 222b1b of the second coupled portion 222 b. As shown in fig. 17, the third connecting-subject portion 223b is disposed axially below the upper edge 221b1a of the first connecting-subject portion 221b and the upper edge 222b1a of the second connecting-subject portion 222 b. In other words, the upper edge 223b1a of the third connected portion 223b is disposed at a position lower than the upper edge 221b1a of the first connected portion 221b and the upper edge 222b1a of the second connected portion 222b in the axial direction. However, the upper edge 223b1a of the third connecting-subject portion 223b may be disposed at a position axially above the upper edge 221b1a of the first connecting-subject portion 221b and the upper edge 222b1a of the second connecting-subject portion 222 b.

In the present embodiment, as shown in fig. 16 and 17, the upper edge 223b1a of the third connected portion 223b has the same level as the interval G1 of the first connected portion 221b and the interval G2 of the second connected portion 222 b. However, the upper edge 223b1a of the third connected portion 223b may have the same horizontal height as the upper edge 221b1a of the first connected portion 221b and the upper edge 222b1a of the second connected portion 222b, the upper edge 223b1a of the third connected portion 223b may have the same horizontal height as the lower edge 221b1b of the first connected portion 221b and the lower edge 222b1b of the second connected portion 222b, and the upper edge 223b1a of the third connected portion 223b may be disposed below the lower edge 221b1b of the first connected portion 221b and the lower edge 222b1b of the second connected portion 222 b. The third connected portion 223b may be disposed between the upper edge 221b1a of the first connected portion 221b and the lower edge 221b1b of the first connected portion 221b in the axial direction, and the third connected portion 223b may be disposed between the upper edge 222b1a of the second connected portion 222b and the lower edge 222b1b of the second connected portion 222b in the axial direction.

In the present embodiment, the lower edge 223b1b of the third connected portion 223b and the inner wall of the housing 210 are separated by a space, whereby the insulation distance of the third connected portion 223b with respect to the 1 st surface 211a can be increased. However, the lower edge 223b1b of the third connected portion 223b may contact the inner wall of the case 210, whereby the case 210 can provide a supporting force to the third connected portion 223 b.

Further, referring to fig. 4 and 17, the width W3 of the third connected portion 223b in the width direction WD3 is slightly smaller than the length H1, the length H2, and the length H3, whereby the contact between the third terminal 123 and the third connected portion 223b can be ensured. In other words, W3< H1, W3< H2, or W3< H3. However, the width W3 may be slightly the same as the length H1, the length H2, and the length H3. In other words, W3 ═ H1 ═ H2 ═ H3. Thereby, the contact between the third terminal 123 and the third connection-receiving portion 223b can be increased.

As shown in fig. 18, corresponding to the adapter 100 for a lighting fixture of fig. 5, the pull-up type wire holder 200 of the present embodiment is used for connecting the first terminal 121 and the second terminal 122 of the adapter 100 for a lighting fixture, in which the heights of the one end portion 121a and the one end portion 122a are substantially the same, and the third terminal 123 'in which the one end portion 123a is higher than the heights of the one end portion 121a and the one end portion 122a of the first terminal 121 and the second terminal 122, to the first connection-receiving portion 221b, the second connection-receiving portion 222b, and the third connection-receiving portion 223 b' through the first guide groove 231, the second guide groove 232, and the third guide groove 233, respectively. As shown in fig. 18, the upper edge 223b1a 'of the third connected portion 223 b' is arranged at a position higher than the upper edge 221b1a of the first connected portion 221b and the upper edge 222b1a of the second connected portion 222b in the axial direction. As shown in fig. 18, the lower edge 223b1b 'of the third connected portion 223 b' is disposed axially below the lower edge 221b1b of the first connected portion 221b and the lower edge 222b1b of the second connected portion 222 b. Accordingly, the contact area between the third terminal 123 'and the third connected portion 223 b' can be ensured, and the contact between the third terminal 123 'and the third connected portion 223 b' can be improved. In this case, the lower edge 223b1b 'of the third connected portion 223 b' may be spaced apart from the inner wall of the case 210, or may contact the inner wall of the case 210.

The lower edge 223b1b 'of the third coupled portion 223 b' may be disposed axially above the lower edge 221b1b of the first coupled portion 221b and the lower edge 222b1b of the second coupled portion 222 b. Thereby, the insulation distance of the third connection-receiving portion 223b can be ensured. Further, the lower edge 223b1b 'of the third connected portion 223 b' may have the same horizontal height in the axial direction as the lower edge 221b1b of the first connected portion 221b and the lower edge 222b1b of the second connected portion 222b, the lower edge 223b1b 'of the third connected portion 223 b' may have the same horizontal height in the axial direction as the interval G1 of the first connected portion 221b and the interval G2 of the second connected portion 222b, the lower edge 223b1b 'of the third connected portion 223 b' may have the same horizontal height in the axial direction as the upper edge 221b1a of the first connected portion 221b and the upper edge 222b1a of the second connected portion 222b, and the lower edge 223b1b 'of the third connected portion 223 b' may be disposed at a position above the upper edge 221b1a of the first connected portion 221b and the upper edge 221b1a of the second connected portion 222b in the axial direction. Thereby, the insulation distance of the third connection-receiving portion 223b can be ensured.

Further, referring to fig. 5 and 18, the width W3 'of the third connected portion 223 b' in the width direction WD3 'is greater than the length H1 and the length H2, but is smaller than the length H3'. In other words, H3 '> W3' > H1 or H3 '> W3' > H2. However, the width W3 'may be slightly the same as the length H3'. In other words, W3 'is H3'. However, the width W3 'may be larger than the difference between the length H3' and the length H1, or the width W3 'may be larger than the difference between the length H3' and the length H2, i.e., W3 '> H3' -H1 or W3 '> H3' -H2. The width W3 'may be smaller than the difference between the length H3' and the length H1, or the width W3 'may be smaller than the difference between the length H3' and the length H2, that is, W3 '< H3' -H1 or W3 '< H3' -H2. The width W3 'may be the same as the difference between the length H3' and the length H1, or the width W3 'may be the same as the difference between the length H3' and the length H2, that is, W3 ═ H3 '-H1 or W3 ═ H3' -H2.

[ arrangement of terminals and insertion portions ]

Next, the arrangement of the first terminal 121, the second terminal 122, and the third terminal 123 when the lighting fixture adapter 100 is viewed from the 1 st surface 111a side will be described with reference to fig. 11 to 13, 19, and 20.

As shown in fig. 11 to 13, the one end 121a of the first terminal 121, the one end 122a of the second terminal 122, and the one end 123a of the third terminal 123 protrude from the 1 st surface 111a of the lighting fixture adapter 100, and the one end 121a of the first terminal 121, the one end 122a of the second terminal 122, and the one end 123a of the third terminal 123 are configured to have three apexes of a triangle when viewed from the 1 st surface 111a side. Each of the one end portion 121a of the first terminal 121, the one end portion 122a of the second terminal 122, and the one end portion 123a of the third terminal 123 needs to be disposed with a predetermined interval therebetween in order to ensure insulator properties with respect to the other terminals or conductive members. If the first position P1 of the one end 121a of the first terminal 121, the second position P2 of the one end 122a of the second terminal 122, and the third position P3 of the one end 123a of the third terminal 123 are arranged on a straight line, the dimension of the housing 110 in the straight line direction may increase. The positions referred to herein (specifically, the first position P1, the second position P2, and the third position P3) are, for example, the center positions (or the coordinates indicated by the center positions) of the ends of the terminals when viewed from the 1 st surface 111a side.

Therefore, in the adapter 100 for a lighting fixture, the first position P1 of the one end 121a of the first terminal 121, the second position P2 of the one end 122a of the second terminal 122, and the third position P3 of the one end 123a of the third terminal 123 are not arranged in a straight line. The first position P1, the second position P2, and the third position P3 constitute 3 vertices of a triangle.

Thereby, as compared with the case where the first position P1, the second position P2, and the third position P3 are arranged on a straight line in the same direction, the size of the housing 110 in the same direction can be reduced.

The triangles having the 3 vertices of the first position P1, the second position P2, and the third position P3 may be any triangles, but the triangles in the adapter 100 for a lighting fixture are isosceles triangles. In other words, the first position P1, the second position P2, and the third position P3 are arranged so as to constitute 3 vertices of an isosceles triangle. In other words, the third position P3 is a perpendicular bisector between the first position P1 and the second position P2.

Thereby, the interval between the one end 121a of the first terminal 121 and the one end 123a of the third terminal 123 is equal to the interval between the one end 122a of the second terminal 122 and the one end 123a of the third terminal 123. In the case where the third terminal 123 is a ground terminal, the distances from each of the one end portion 121a of the first terminal 121 and the one end portion 122a of the second terminal 122 to the ground terminal can be easily made equal.

However, in the above arrangement, a conductive member cannot be arranged around each of the one end portion 121a of the first terminal 121, the one end portion 122a of the second terminal 122, and the one end portion 123a of the third terminal 123. For example, when viewed from the 1 st surface 111a side, it is assumed that a device having conductivity cannot be arranged in a circular region within the radius r from the center of each of the first position P1, the second position P2, and the third position P3. In this case, as shown in fig. 19, if the first position P1, the second position P2, and the third position P3 are arranged on a straight line with the interval r therebetween, the region a surrounded by the thick line is a region where a component having conductivity cannot be arranged. Fig. 19 is a view showing a region where a conductive member cannot be disposed in a case where the first position P1, the second position P2, and the third position P3 are disposed on a straight line.

When the first position P1, the second position P2, and the third position P3 are formed as 3 vertices of an isosceles triangle, the area B surrounded by a thick line in fig. 20 is an area where a component having conductivity cannot be disposed. Fig. 20 is a view showing a region where a component having conductivity cannot be arranged in a case where the first position P1, the second position P2, and the third position P3 are formed as 3 vertexes of an isosceles triangle.

Here, in fig. 20, if the length r1 of the perpendicular line formed from the vertex corresponding to the third position P3 to the opposite bottom line satisfies the relationship of r1 ≦ 1.13r, the area of the region B in fig. 20 may be equal to or smaller than the area of the region a in fig. 19. In other words, if the length of the base of the isosceles triangle formed by the first position P1, the second position P2, and the third position P3 is 1, the length of the perpendicular line from the vertex corresponding to the third position P3 to the opposing base in the isosceles triangle may be 1.13 or less. Thus, it is possible to easily arrange a conductive member even if the housing 110 is miniaturized. In other words, it is possible to easily miniaturize the housing 110 and to simultaneously secure the insulation distances of the first terminal 121, the second terminal 122, and the third terminal 123. Further, the minimum value of r1 may be (√ 3/2) × r, for example.

The arrangement of the first terminal 121, the second terminal 122, and the third terminal 123 when viewed from the 1 st surface 111a side has been described above. When viewed from the 2 nd surface 112a side, the position of the other end 121b of the first terminal 121, the position of the other end 122b of the second terminal 122, and the position of the other end 123b of the third terminal 123 are also configured as three vertexes of a triangle. In this case, the position of the other end 121b of the first terminal 121, the position of the other end 122b of the second terminal 122, and the position of the other end 123b of the third terminal 123 may be configured as 3 vertexes of an isosceles triangle.

Here, the arrangement relationship of the first position P1 of the one end 121a of the first terminal 121, the second position P2 of the one end 122a of the second terminal 122, and the third position P3 of the one end 123a of the third terminal 123 is described. Further, referring to fig. 10, the first position P1b of the first insertion portion 231a, the second position P2b of the second insertion portion 232a, and the third position P3b of the third insertion portion 233a of the pull-up type wire holder 200 are also applied to the arrangement relationship among the first position P1, the second position P2, and the third position P3. Further, referring to fig. 6, the other ends 221d, 222d, 223d of the first cutting edge 221, the second cutting edge 222, and the third cutting edge 223 are also applied to the arrangement relationship among the first position P1, the second position P2, and the third position P3.

[ Effect ]

As described above, the pull-up wire holder 200 according to the present embodiment is used for connecting the adapter 100 for a lighting apparatus and the apparatus main body 310 of the lighting apparatus 300 to be fixed to a ceiling or the like, and includes: a housing 210 having a1 st surface 211a facing the lighting fixture adapter 100 and a2 nd surface 212a opposite to the 1 st surface; and a first blade receiver 221, a second blade receiver 222, and a third blade receiver 223; each of the first blade receiver 221, the second blade receiver 222, and the third blade receiver 223 includes a first connected portion 221b, a second connected portion 222b, and a third connected portion 223b connected to each of the first terminal 121, the second terminal 122, and the third terminal 123, and each of the first terminal 121, the second terminal 122, and the third terminal 123 having substantially the same height as the end portion 121a, 122a, 123a of one of the lighting fixture adapters 100 is provided on the 1 st surface 211a side of the housing 210, and each of the first connected portion 221b, the second connected portion 222b, and the third connected portion 223b is allowed to pass through and be connected to each of the first guide groove 231, the second guide groove 232, and the third guide groove 233.

Thus, when the first terminal 121, the second terminal 122, and the third terminal 123 having the substantially same height at one

end

121a, 122a, and 123a are inserted, the size of the pull-up type wire holder can be reduced, and the holding property when the adapter for a lighting fixture is engaged with the pull-up type wire holder can be ensured.

In the pull-type wire holder 200 according to the present embodiment, the third connection-receiving portion 223b is located closer to the 1 st surface 211a than the first connection-receiving portion 221b and the second connection-receiving portion 222 b.

Accordingly, when the first terminal 121, the second terminal 122, and the third terminal 123 having the substantially same height at one

end portions

121a, 122a, and 123a are inserted, the connectivity between the third terminal 123 and the third connection-receiving portion 223b can be ensured.

In the pull-type wire holder 200 of the present embodiment, the third connected portion 223b is disposed axially below the upper edges 221b1a, 222b1a of the first connected portion 221b and the second connected portion 222b, respectively.

end portions

In the pull-type wire holder 200 according to the present embodiment, the third connected portion 223b includes an opening portion 223b1 for receiving the third terminal 123, a guide portion 223b2 for guiding the third terminal 123, and an engaging portion 223b3 for engaging with the third terminal 123.

Accordingly, when the third terminal 123 is engaged with the third blade 223, it can advance to the engaging portion 223b3 along the opening portion 223b1 and the guide portion 223b2 of the third blade 223, and stability at the time of engagement can be ensured.

In the pull-type wire holder 200 of the present embodiment, the opening 223b1 is spaced from the guiding portion 223b2 side to a direction opposite to the sandwiching direction.

Thereby, the third terminal 123 can enter the opening 223b1 more easily, and stability at the time of engagement can be ensured.

In the pull-type wire holder 200 according to the present embodiment, each of the first guide groove 231, the second guide groove 232, and the third guide groove 233 includes: a first insertion portion 231a, a second insertion portion 232a, and a third insertion portion 233a into which each of the first terminal 121, the second terminal 122, and the third terminal 123 is insertable in an axial direction, a first guide portion 231b, a second guide portion 232b, and a third guide portion 233b that can guide each of the first terminal 121, the second terminal 122, and the third terminal 123 at each of the first cutting edge 221, the second cutting edge 222, and the third cutting edge 223, and a first terminal portion 231c, a second terminal portion 232c, and a third terminal portion 233c that can restrict the advance of each of the first terminal 121, the second terminal 122, and the third terminal 123, wherein the first insertion portion 231a has a width larger than that of each of the first guide portion 231b and the first terminal portion 231c, and the second insertion portion 232a has a width larger than that of each of the second guide portion 232b and the second terminal portion 232c The degree is large.

Accordingly, the first terminal 121 and the second terminal 122 can be more easily inserted into the first insertion portion 231a and the second insertion portion 232a, and the insertion property when the adapter 100 for a lighting apparatus is inserted into the hanging wire holder 200 can be improved. In addition, the user can easily assign the positions of the first insertion portion 231a and the second insertion portion 232 a.

In the pull-type wire holder 200 according to the present embodiment, each of the first guide groove 231, the second guide groove 232, and the third guide groove 233 has a first insertion portion 231a, a second insertion portion 232a, and a third insertion portion 233a into which each of the first terminal 121, the second terminal 122, and the third terminal 123 is axially insertable, and the first insertion portion 231a and the second insertion portion 232a have different shapes when viewed from the 1 st surface 211a side.

Thereby, the user can easily assign the positions of the first insertion portion 231a and the second insertion portion 232 a.

In the pull-type wire holder 200 according to the present embodiment, each of the first guide groove 231, the second guide groove 232, and the third guide groove 233 has a first insertion portion 231a, a second insertion portion 232a, and a third insertion portion 233a into which each of the first terminal 121, the second terminal 122, and the third terminal 123 is axially insertable, and the first position P1b of the first insertion portion 231a, the second position P2b of the second insertion portion 232a, and the third position P3b of the third insertion portion 233a are configured as 3 vertices of a triangle when viewed from the 1 st surface 211a side.

Thereby, the size of the housing 210 can be easily reduced as compared with the case where the first position P1b, the second position P2b, and the third position P3b are arranged on a straight line. In other words, the size reduction of the pull-up type wire holder 200 can be easily achieved.

In the pull-up type wire holder 200 according to the present embodiment, the first blade 221 and the second blade 222 are a pair of blades for receiving power supply from the pull-up type wire holder 200 through the first terminal 121 and the second terminal 122 of the adapter 100 for a lighting apparatus in the lighting apparatus 300, and the third blade 223 is a ground blade.

Thus, since the pull-up wire holder 200 has a grounding blade, the safety of the pull-up wire holder 200 can be improved.

The lighting fixture 300 of the present embodiment is characterized by including the pull-up wire holder 200 and the fixture body 310.

Thus, the lighting device 300 including the pull-up type wire holder 200 which can ensure the engagement with the adapter 100 for the lighting device can be reduced in size and held.

[ other embodiments ]

While the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various improvements and modifications may be made without departing from the scope of the present invention.

For example, the lighting fixture described in the above embodiment is an example, and the specific form of the lighting fixture is not particularly limited. The lighting apparatus may be connected to the connection base by the adapter for a lighting apparatus in any form.

Further, the specific form of the adapter for a lighting fixture is not particularly limited. For example, in the above embodiment, the adapter for a lighting fixture is provided with the first latching member and the second latching member, and the fixture body of the lighting fixture is latched to the adapter for a lighting fixture. However, the adapter for a lighting fixture does not necessarily have to include the first locking member and the second locking member. For example, a spiral groove may be provided on each of the inner peripheral surface of the mounting hole of the fixture body and the outer peripheral surface of the side wall of the housing of the lighting fixture adapter, and the fixture body and the lighting fixture adapter may be screwed together.

Further, the specific form of the pull-up type wire holder is not particularly limited. The lead-hanging wire holder can be a ball-type full-lead-hanging wire holder, a ball-type lead-hanging wire holder, an angle-type lead-hanging wire holder, a lead-hanging embedded wire holder, a lead-hanging exposed wire holder and the like.

In addition, the present invention includes a configuration obtained by various modifications that can be made to the respective embodiments by those skilled in the art, and a configuration obtained by arbitrarily combining the components and functions of the respective embodiments without departing from the scope of the present invention.

[ description of symbols ]

100 adaptor for lighting device

110 casing

111 body part

111a1 st surface

111a1, 111a2, 111a3 terminal insertion hole

111b opening

111c1 first opening

112 cover

112a No. 2

112b open

121 first terminal

121a, 122a, 123a, and the like

121b, 122b, 123b, and the other end

121a1 first projection

121a11 bend

121a12 terminal connecting part

122 second terminal

122a1 second projection

122a11 bend

122a12 terminal connecting part

123. 123' third terminal

123a1, 123a 1' third projection

131 first stop component

132 second stop component

140 lock release button

150 connector insertion opening

161 first lever

162 second lever

181 projection

200 leading-hanging wire holder

210 casing

211 body part

211a 1 st surface

212 cover

212a No. 2

213 positioning part

215 restriction part

221 first edge receiver

221a first base

221b first connected portion

221b1a upper edge

221b1b lower edge

222 second blade receiver

222a second base part

222b second connected portion

222b1a upper edge

222b1b lower edge

223 third blade receiver

223a third base

223a1 enlargement part

223b, 223 b' third connected portion

223b1 opening part

223b2 induction part

223b3 snap-fit part

221c, 222c, 223c end

221d, 222d, 223d other end

223b1a, 223b1a

223b1b, 223b1 b' lower edge

231 first guide groove

231a first insertion part

231b first guide part

231c first terminal end

232 second guide groove

232a second insertion part

232b second guide part

232c second terminal end

233 third guide groove

233a third insertion part

233b third guide part

233c third terminal

300 Lighting appliance

310 appliance body

330 connector

340 cover

360 mounting hole

P1, P1b first position

P2, P2b second position

P3 and P3b third positions

C center position

radius r

Region A

Region B

C center position

Imaginary circle of C1

G1, G2, G3, G4 intervals

Length of H1

Length of H2

Length of H3, H3

L1 length

L2 length

WD1, WD2 in the width direction

WD3, WD 3' width direction

Width of W3, W3

Claims

1. A pull-up type wire holder for connecting an adapter for a lighting apparatus and an apparatus body of the lighting apparatus to a ceiling or the like, comprising:

a housing having a1 st surface facing the lighting fixture adapter and a2 nd surface opposite to the 1 st surface; and

a first blade, a second blade, and a third blade; and is

Each of the first blade, the second blade, and the third blade has a first connected portion, a second connected portion, and a third connected portion connected to each of the first terminal, the second terminal, and the third terminal,

the first, second, and third guide grooves are provided on the 1 st surface side of the housing, and each of the first, second, and third terminals, through which the end of one of the lighting fixture adapters has approximately the same height, is connectable to each of the first, second, and third connected portions.

2. The pull-type wire holder according to claim 1, wherein the third connected portion is closer to the 1 st surface side than the first connected portion and the second connected portion.

3. The pull-up type wire holder according to claim 1, wherein the third connected portion is arranged axially below an upper edge of each of the first connected portion and the second connected portion.

4. The pull-up type wire holder according to claim 1, wherein the third connected portion has an opening portion for receiving the third terminal, an inductive portion for inducing the third terminal, and an engaging portion for engaging with the third terminal.

5. The pull-up type wire holder according to claim 4, wherein the opening portion has a larger interval from the induction portion side toward a direction opposite to the sandwiching direction.

6. The pull-up wire holder according to claim 1, wherein:

each of the first guide groove, the second guide groove, and the third guide groove has:

a first insertion portion, a second insertion portion, and a third insertion portion into which the first terminal, the second terminal, and the third terminal are insertable in an axial direction,

a first guide portion, a second guide portion, a third guide portion, and an end portion capable of guiding each of the first terminal, the second terminal, and the third terminal to the first cutting edge, the second cutting edge, and the third cutting edge

A first terminal portion, a second terminal portion, and a third terminal portion capable of restricting the advance of each of the first terminal, the second terminal, and the third terminal, and

the first insertion portion has a width larger than a width of each of the first guide portion and the first terminal portion, and the second insertion portion has a width larger than a width of each of the second guide portion and the second terminal portion.

7. The pull-up wire holder according to claim 1, wherein:

each of the first guide groove, the second guide groove, and the third guide groove has a first insertion portion, a second insertion portion, and a third insertion portion into which each of the first terminal, the second terminal, and the third terminal is insertable in an axial direction,

the first insertion portion and the second insertion portion assume different shapes as viewed from the 1 st face side.

8. The plug-type wire holder according to any one of claims 1 to 7, wherein:

the first position of the first insertion portion, the second position of the second insertion portion, and the third position of the third insertion portion are 3 vertices of a triangle when viewed from the 1 st surface side.

9. The plug-type wire holder according to any one of claims 1 to 7, wherein:

the first blade and the second blade are a pair of blades for the lighting apparatus to receive power supply from the pull-up type wire holder via the first terminal and the second terminal of the adapter for the lighting apparatus,

the third blade is a ground blade.

10. A lighting fixture, characterized by comprising:

the plug-and-socket type wire holder according to any one of claims 1 to 9, and

the appliance body.