JP2015170436A - Lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a light fixture excellent in assembly workability.SOLUTION: A light fixture 1 includes: a lamp socket 11 to which a bulb type lamp 10 is connected; a lamp shade 12 that covers the lamp 10 and the lamp socket 11; a power source cord 15 that is extended to outside of the lamp shade 12 through a cord insertion hole 120 penetrated from a cord connection terminal 113 of the lamp socket 11 to the lamp shade 12; and a cord bush 16 that is annularly provided in the power source cord 15, fitted and fixed to the lamp socket 11, and supports and fixes the power source cord 15 to the lamp socket 11 in a slip-off state.

Description

  The present invention relates to a luminaire using a light bulb-type lamp as a light source, and more particularly to a luminaire having a configuration in which a power cord is extended outward from a cord insertion hole of a lamp shade.

  In a lighting fixture that uses a light bulb-type lamp as a light source, such as a spotlight, a pendant light, and a clip light, a power cord that extends outward from a cord insertion hole that is opened in a lamp shade is known (for example, Patent Document 1).

  However, in the case of the lighting fixture having the above-described configuration, every time the lamp shade is moved, the peripheral portion of the cord insertion hole comes into contact with a specific portion of the power cord, and there is a possibility that the power cord is disconnected or the covering is damaged. In this case, if an excessive tensile stress is applied to the power cord, a load is concentrated on the connecting portion between the power cord and the lamp socket, and there is a possibility that the connecting portion is disconnected.

  Considering these problems, conventionally, as shown in FIG. 7, a cord bush 56 is provided at a predetermined position of the power cord 55, and the cord bush 56 is inserted into a cord insertion hole 520 provided in the ramp shade 52. Accordingly, there has been proposed a lighting fixture 5 configured to fix the power cord 55 to the lamp shade 52 in a state of being prevented from coming off (see, for example, Patent Documents 2 and 3).

JP 2007-42303 A JP 2006-127953 A Japanese Patent Laid-Open No. 9-245516

  However, in the above-described conventional lighting fixture 5, during assembly, the work of wiring the power cord 55 to the lamp socket 51, the work of screwing and fixing the lamp socket 51 to the lamp shade 52, the cord attached to the power cord 55 The operation of fitting the bushing 56 into the cord insertion hole 520 of the lamp shade 52 needs to be performed separately, and the assembling workability is poor.

  This invention is made | formed in view of the above-mentioned situation, The objective is to provide the lighting fixture with favorable assembly workability | operativity.

  The present invention includes a lamp socket to which a bulb-type lamp is connected, and a lamp shade that covers the lamp and the lamp socket, and a power cord is connected to the lamp socket through a cord insertion hole formed in the lamp shade from the cord connection terminal of the lamp socket. A lighting fixture extending outside the shade is provided with a cord bush that is provided around the power cord and is fitted and fixed to the lamp socket, and the power cord is supported and fixed to the lamp socket in a state of being prevented from coming off.

  In this case, the power cord is secured in a state where it is prevented from coming off by a cord bush provided in the lamp socket. Therefore, when assembling, the power cord is wired to the lamp socket and the cord bush is attached to the lamp socket. Can be performed simultaneously. That is, it does not take time to insert the cord bush into the cord insertion hole of the lamp shade.

  In the lighting apparatus, preferably, the cord bush is configured to be supported and fixed to the lamp socket in a state where the power cord is bent in a substantially L shape or a substantially S shape.

  In this case, the power cord is bent into a substantially L shape or a substantially S shape by fitting and fixing the cord bush to the lamp socket, and the bent portion is fixed to the lamp socket in a retaining state. Therefore, there is little effort to fix the power cord to the lamp socket.

  As described above, according to the present invention, it is possible to provide a lighting apparatus with good assembling workability.

It is a partial exploded perspective view of the lighting fixture which concerns on embodiment of this invention. It is side view longitudinal cross-sectional view of the lamp shade periphery of the lighting fixture which concerns on embodiment of this invention. It is a perspective view of the lamp socket of the lighting fixture which concerns on embodiment of this invention. It is a top view of the lamp socket of the lighting fixture which concerns on embodiment of this invention. It is a side view longitudinal cross-sectional view of the lamp shade periphery of the lighting fixture which concerns on other embodiment of this invention. It is a perspective view of the lamp socket of the lighting fixture which concerns on other embodiment of this invention. It is a partial exploded perspective view of the conventional lighting fixture.

Next, embodiments for carrying out the present invention will be described in detail with reference to the accompanying drawings.
As shown in FIG. 1, a lighting fixture 1 according to an embodiment of the present invention is a clip light using a light bulb-type lamp 10 as a light source, a lamp socket 11 to which the lamp 10 is connected, a lamp 10 and a lamp socket. 11 and a lamp shade 12 that covers 11. Further, an arm 13 having a clip 14 at the tip is connected to the outer surface of the ramp shade 12, and the clip 14 is used by being sandwiched at a desired position such as a shelf board or a column. In the present embodiment, a description will be given of an apparatus provided with an arm 13 with a clip 14. However, the present invention provides a spotlight having a support arm fixed to a wall surface and a suspension wire suspended from a ceiling. It can also be applied to the pendant light provided.

  As shown in FIGS. 1 and 2, the lamp socket 11 is formed in a substantially cylindrical shape having a lamp mounting port 110 on the front end side (lower side in FIGS. 1 and 2). The lamp 10 is screwed and connected. On the other hand, a cylindrical screw receiving portion 112 is erected at the center of the rear end surface 111 of the lamp socket 11, and the fixing screw 14 is screwed into the screw receiving portion 112 from the outside of the rear wall 121 of the lamp shade 12. The lamp socket 11 is fixed to the lamp shade 12.

  On the outer peripheral side of the screw receiving portion 112 on the rear end surface 111 of the lamp socket 11, a pair of cord connecting terminals respectively connected to a metal receiver 11A and a contact terminal 11B (see FIG. 2) provided inside the lamp socket 11. 113 is provided. A power cord 15 is connected to the cord connection terminal 113.

  The power cord 15 extends from the cord connection terminal 113 to the outside through a cord insertion hole 120 formed in the rear wall 121 of the lamp shade 12, and is connected to an outlet such as a wall surface at the end, though not shown. A power plug is provided.

  As shown in FIGS. 3 and 4, the power cord 15 is composed of two conductive wires 15A and 15B, and one of the conductive wires 15A is connected to the cord connection terminal 113A on the metal receiver 11A side. The other conductive line 15B is connected to the cord connection terminal 113B on the contact terminal 11B side.

  On the outer peripheral side of the screw receiving portion 112 on the rear end surface 111 of the lamp socket 11, a columnar protruding piece 114 and a rib-shaped protruding piece 115 are erected with a predetermined gap between the lamp receiving portion 112 and the screw receiving portion 112. Yes. The conductive wire 15A extends from the cord connection terminal 113A along the rear end surface 111, and is press-fitted and held in the gap between the screw receiving portion 112 and the protruding piece 114. On the other hand, the conductive wire 15B extends from the cord connection terminal 113B along the rear end surface 111, and is press-fitted and held in the gap between the screw receiving portion 112 and the protruding piece 115. Therefore, even if an excessive tensile stress is applied to the power cord 15, no load is applied to the connection portion between the power cord 15 and the cord connection terminals 113 </ b> A and 113 </ b> B.

  At the rear end 116 of the peripheral wall of the lamp socket 11, a flat cylindrical cord holding portion 160 provided around a predetermined range of the outer periphery of the power cord 15, and the state where the power cord 15 is pressed against the rear end surface 111 side of the lamp socket 11. A cord bush 16 is provided that includes a cord pressing portion 161 that is held by the cord bushing 161.

  The cord holding portion 160 is integrally formed on the upper surface (the surface facing the rear wall 121 of the lamp shade 12) 162 of the cord pressing portion 161, and toward the rear end side (upper side in FIG. 3) of the lamp socket 11. It extends and protrudes outside the lamp shade 12 through the cord insertion hole 120. That is, the cord holding part 160 is interposed between the power cord 15 and the inner peripheral edge of the cord insertion hole 120.

  As shown in FIGS. 1, 3, and 4, a notch 117 for attaching the cord bush 16 is formed in the rear end 116 of the peripheral wall of the lamp socket 11. On the other hand, a groove portion 166 that matches the side edge shape of the notch portion 117 is formed on the side surface of the cord pressing portion 161, and the groove portion 166 and the side edge of the notch portion 177 are frictionally joined, whereby the cord bush 16 Is fixedly held in the lamp socket 11.

  As shown in FIG. 2, the cord pressing portion 161 is formed in a deformed cylindrical shape that opens downward (on the rear end surface 111 side of the lamp socket 11), and its internal space communicates with the internal space of the cord holding portion 160. doing. Further, a notch hole 167 serving as an insertion hole for the power cord 15 is provided at a lower end of the side wall 163 of the cord pressing portion 161 and at a position facing the screw receiving portion 112 of the lamp socket 11. The lamp socket 11 is held between the rear end surface 111 of the lamp socket 11 and the upper edge of the cutout hole 167 (the end edge facing the rear end surface 111 of the lamp socket 11) and passes through the internal space of the cord holding part 160. It extends to the rear end side. That is, when the cord bush 16 is fitted and fixed to the lamp socket 11, the power cord 15 is bent into a substantially L shape inside the cord bush 16, and the bent portion is prevented from being detached from the lamp socket 11. It is fixed with.

  Further, the lower end of the side wall 163 of the cord pressing portion 161 is in contact with the rear end surface 111 of the lamp socket 11, and the upper surface 162 of the cord pressing portion 161 is in surface contact with the rear wall 121 of the lamp shade 12. That is, when the lamp socket 11 is fixed to the lamp shade 12, the cord pressing portion 161 is sandwiched between the rear end surface 111 of the lamp socket 11 and the rear wall 121 of the lamp shade 12. The lamp socket 11 is fixed and held more firmly.

  As described above, according to the luminaire 1, the power cord 15 is fixed in a state of being prevented from being detached by the cord bush 16 provided in the lamp socket 11, so that the power cord 15 is wired to the lamp socket 11 during assembly. And the operation of attaching the cord bush 16 to the lamp socket 11 can be performed simultaneously. That is, it does not take time to fit the cord bush 16 into the cord insertion hole 120 of the lamp shade 12. Therefore, it is possible to provide a lighting apparatus with good assembly workability.

  In this case, the cord bush 16 is fitted and fixed to the lamp socket 11, whereby the power cord 15 is bent into an approximately L shape inside the cord bush 16, and the bent portion is attached to the lamp socket 11 by this bent portion. On the other hand, the power cord 15 is fixed in a state in which the power cord 15 is prevented from being detached. Therefore, it is possible to provide a lighting apparatus with better assembly workability.

  Further, in this case, since the power cord 15 is fixed to the lamp socket 11 by the bent portion, the power cord 15 and the cord connecting terminal 113A are connected even if excessive tensile stress is applied to the power cord 15. , 113B concentrates on the connection part and no load is applied. Therefore, disconnection of the connecting portion is unlikely to occur.

  In this case, since the cord holding portion 160 of the cord bush 16 is interposed between the power cord 15 and the inner peripheral edge of the cord insertion hole 120 of the ramp shade 12, even if the ramp shade 12 is moved, The peripheral edge of the cord insertion hole 120 does not contact the outer peripheral surface of the power cord 15. Therefore, disconnection of the power cord 15 and damage to the coating are unlikely to occur.

  In the above-described embodiment, the cord holding portion 160 of the cord bush 16 is extended toward the rear end side of the lamp socket 11, but as shown in FIGS. 5 and 6, the cord bush 16 The cord holding portion 160 may be extended in the outer peripheral direction of the lamp socket 11. More specifically, the cord holding portion 160 of the lighting fixture 1 in the present embodiment is integrally formed on the side wall 163 of the cord pressing portion 161, extends toward the outer peripheral side of the lamp socket 11, and It protrudes to the outside of the lamp shade 12 through a cord insertion hole 120 formed on the peripheral surface. Further, the internal space of the cord holding portion 160 is from a position above the upper edge of the notch hole 167 provided on the lower end of the side wall 163 of the cord pressing portion 161 (upper side in FIG. 5) toward the outer peripheral side of the lamp socket 11. The power cord 15 is formed and extends to the outer peripheral side of the lamp socket 11 through the internal space of the cord holding portion 160 in a state where the power cord 15 is sandwiched between the rear end surface 111 of the lamp socket 11 and the upper edge of the notch hole 167. Is issued. That is, when the cord bush 16 is fitted and fixed to the lamp socket 11, the power cord 15 is bent into a substantially S shape inside the cord bush 16, and the bent portion is detached from the lamp socket 11. Fixed in the stopped state. Thereby, there exists an effect similar to the said embodiment.

  In the above embodiment, the groove portion 166 provided in the cord pressing portion 161 of the cord bush 16 and the side edge of the notch portion 177 provided in the peripheral wall rear end 116 of the lamp socket 11 are friction-joined. Although the cord bush 16 is configured to be fixedly held by the lamp socket 11, the cord bush 16 is provided at the cord pressing portion 161 of the cord bush 16 and the peripheral wall rear end 116 of the lamp socket 11. The cord bush 16 may be configured to be fixedly held by the lamp socket 11 by fitting the recessed portion.

1 Lighting fixture 10 Lamp 11 Lamp socket 113 Cord connection terminal
12 Lampsade 120 Cord insertion hole 15 Power cord 16 Cord bush 167 Notch hole

Claims (2)

It has a lamp socket to which a bulb-type lamp is connected and a lamp shade that covers the lamp and the lamp socket, and the power cord goes from the cord connection terminal of the lamp socket to the outside of the lamp shade through the cord insertion hole established in the lamp shade A lighting fixture to be extended,
A lighting apparatus comprising a cord bushing that is provided around a power cord and is fitted and fixed to a lamp socket, and that supports and fixes the power cord in a state of being prevented from being detached from the lamp socket. The lighting fixture according to claim 1,
The cord bush is a lighting fixture configured to be supported and fixed to the lamp socket in a state where the power cord is bent in a substantially L shape or a substantially S shape.

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