JP4548452B2 - lighting equipment - Google Patents

Description

  The present invention relates to a lighting fixture.

  Conventionally, when a plurality of straight tube fluorescent lamps are continuously arranged along the axial direction, a cap is provided on the side surfaces of both ends of the fluorescent lamp instead of the end faces of both ends of the fluorescent lamp. There has been provided a fluorescent lamp that prevents the occurrence of non-light emitting portions at both ends. Moreover, the lighting fixture provided with the socket by which such a fluorescent lamp is detachably attached is also provided, for example, there exists a thing as disclosed by patent document 1. FIG. Hereinafter, a conventional example of such a lighting fixture will be described with reference to the drawings. In the following description, the vertical and horizontal directions in FIG. 8 are defined as the vertical and horizontal directions.

  In this conventional example, as shown in FIG. 8, a long flat plate-like instrument body 1 fixed to a ceiling A with a mounting screw S <b> 1 and fluorescent lamps 3 are detachably provided at both longitudinal ends of the instrument body 1. A pair of sockets 4 attached to the main body 1, a ballast (not shown) attached to the fixture body 1 for supplying lighting power to the fluorescent lamp 3 through the socket 4, and routed from the ceiling A to the ballast A power line B connected via a terminal block (not shown) and a cover 2 made of a long box having an upper surface opened and having a function of a reflecting plate that reflects light from the fluorescent lamp 3 are provided. The cover 2 is attached to the instrument main body 1 so as to cover the lower surface of the instrument main body 1 with a fixing screw S2, and a substantially rectangular opening for allowing the socket 4 to face the outside on the lower surfaces of both ends in the longitudinal direction. 20 is penetrated. Thus, after the cover 2 is attached to the fixture main body 1, the terminal pins 30 a protruding from the caps 30 provided on the upper side surfaces of both ends of the fluorescent lamp 3 are provided on the lower surface of the socket main body 40 through the opening 20. The fluorescent lamp 3 is attached to the socket 4 by being inserted into the opened pin insertion hole 41 and connecting the terminal pin 30a to a connecting portion (not shown) housed in the socket body 40. . The socket body 40 is attached to the fixed base 10 having base parts 10a that are attached to both longitudinal ends of the instrument body 1 and protrude downward.

  The socket body 40 is provided with a support spring 5 for holding the base 30 of the fluorescent lamp 3. The support spring 5 is formed in a substantially U-shaped cross section from a pair of side plate portions 51 opposed to each other and a bottom plate portion 50 connecting one end of each side plate portion 51, and the bottom plate portion with the side plate portion 51 facing downward. 50 is attached to the upper surface of the socket body 40. The side plate portions 51 are urged in the directions approaching each other, and holding portions 52 bent in the directions approaching each other are provided on the other end on the opposite side of the bottom plate portion 50. Thus, when the fluorescent lamp 3 is mounted in the socket 4, the base 30 of the fluorescent lamp 3 is inserted between the side plates 51 of the support spring 5 and the side plate of the base 30 as shown in FIG. The protrusions 30 b provided on both side surfaces facing 51 are locked to the holding part 52, whereby the base 30 is held between the side plate parts 51 and the fluorescent lamp 3 is held on the socket 4.

A fall prevention material 6 for preventing the fluorescent lamp 3 from falling is attached to each support spring 5. The fall prevention member 6 is made of a wire material bent in a substantially U shape, and has a shaft portion 60 that is bent with each tip portion inward. Then, by passing the shaft portion 60 from the outside through a substantially circular insertion hole 51a penetrating each side plate portion 51, the fall prevention member 6 is rotatable to the support spring 5 about the shaft portion 60 as an axis. It is attached (see FIGS. 7A and 7B). Thus, after the fluorescent lamp 3 is mounted on the socket 4, the fall prevention material 6 is disposed so as to straddle the lower surface of the fluorescent lamp 3, so that the fluorescent lamp 3 is erroneously removed when the fluorescent lamp 3 is removed from the socket 4. The fluorescent lamp 3 can be prevented from falling on the ground by being caught by the fall prevention material 6 even if it is separated from the hand.
JP 2004-363029 A

  However, in the above conventional example, since the rotation of the fall prevention member 6 is not restricted, for example, as shown in FIG. 7A, the fall prevention member 6 is stored in the space between the instrument body 1 and the cover 2. If the cover 2 is attached to the instrument main body 1 in a state where it has been moved to a possible position, the fall prevention material 6 is confined between the instrument main body 1 and the cover 2, so that when the fluorescent lamp 3 is attached to the socket 4. There was a problem that the fall prevention material 6 could not be used.

  This invention is made | formed in view of said point, and it aims at providing the lighting fixture which can prevent that a fall prevention material is confined between a cover and an instrument main body.

  In order to achieve the above-mentioned object, the invention according to claim 1 is provided with one or a plurality of instrument main bodies and a straight tube type fluorescent lamp provided on the instrument main body and having a base on at least a side surface of the end portion. The socket, one or more support springs sandwiching the side surface of the base of the fluorescent lamp with the fluorescent lamp mounted on the socket, and the support spring or the vicinity thereof and can be rotated about the mounting location. It has a fall prevention material that prevents the fluorescent lamp from falling off the socket by being provided so as to straddle the lower surface of the fluorescent lamp, and an opening that allows the socket and the support spring to face the outside, and is attached to the instrument body And a fluorescent lamp mounted on the socket from the outside of the cover with the cover attached to the instrument body, the fall prevention material being the instrument Characterized by comprising a restricting means for restricting the rotation of the fall prevention member such that the position does not rotate until a can be stored in a space between the body and the cover.

  The invention of claim 2 is characterized in that, in the invention of claim 1, the fall prevention material is made of a wire having elasticity.

  According to a third aspect of the present invention, in the first or second aspect of the invention, the restricting means moves away from the instrument body when the fall prevention material rotates in a direction away from the instrument body from a predetermined position within the rotation range of the fall prevention material. It has a structure that elastically biases the fall prevention material in the direction.

  According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, the restricting means is provided in the vicinity of the rotation center of the fall prevention member.

  According to the first aspect of the present invention, since the fall prevention material is provided with the restricting means for restricting the rotation of the fall prevention material so that it does not rotate to a position where it can be stored in the space between the device main body and the cover. When attaching a cover to a main body, it can prevent that a fall prevention material is confined in the space between an instrument main body and a cover.

  According to the invention of claim 3, since the fall prevention material is biased to a position away from the instrument body by rotating the fall prevention material in a direction away from the instrument body from a predetermined position, the track for removing the fluorescent lamp It is possible to prevent the fall prevention material from remaining on the top.

  Hereinafter, embodiments of a lighting apparatus according to the present invention will be described with reference to the drawings. However, since the basic configuration of the present embodiment is the same as that of the conventional example, common portions are denoted by the same reference numerals and description thereof is omitted. In the present embodiment, as shown in FIGS. 1A and 1B, a substantially rectangular cut-and-raised portion 50 a that is cut downward from the bottom plate portion 50 of the support spring 5, and the side surface of the socket body 40. Is disposed in the shaft portion 60 of the fall prevention material 6 to be described later, so that the fall prevention material 6 approaches the instrument body 1 (counterclockwise in FIG. 1A). (Hereinafter, referred to as “inward”).

  The fall-preventing member 6 is made of a metal and elastic wire, and is bent in a substantially U shape and has a shaft portion 60 bent inward with each tip portion inward as in the conventional example. (See FIG. 2A). As shown in FIG. 2C, a bent portion formed by bending the distal end portion at a substantially right angle (downward in the drawing) with respect to the axial direction of the shaft portion 60. 61 is provided. As shown in FIG. 2B, the bent portion 61 includes a first inclined portion 61a that inclines downward in the drawing as it goes to the tip portion, and a bent portion 61 in the drawing that goes from the first inclined portion to the tip portion. It consists of a second inclined portion 61b that is inclined upward, and a convex portion 61c that corresponds to the intersection of the first inclined portion 61a and the second inclined portion 61b.

  As shown in FIG. 1B, the fall prevention member 6 is attached to the support spring 5 by inserting the shaft portion 60 into the insertion hole 51 a of the side plate portion 51 of the support spring 5 from the outside of the support spring 5. The part 60 is rotatable about the axis. Further, a bent portion 61 provided on the shaft portion 60 is disposed between the cut-and-raised portion 50a and the socket body 40, and the convex portion 61c and the second inclined portion 61b are moved in accordance with the rotation of the fall prevention member 6. The tip portions are respectively in contact with the side surface of the socket body 40 and the cut-and-raised portion 50a.

  Hereinafter, the regulation means of the fall prevention material 6 of this embodiment will be described with reference to the drawings. In a state where the cover 2 is not attached to the instrument body 1, when the fall prevention member 6 is turned inward and the fall prevention member 6 reaches the first predetermined position, it is shown in FIGS. 3 (a) and 3 (b). As described above, the tip end portion of the second inclined portion 61b of the bent portion 61 contacts the cut and raised portion 50a. If the fall prevention member 6 is further rotated inward from this state, the bent portion 61 is bent by the tip portion of the second inclined portion 61b being pressed against the raised portion 50a, and dropped due to the repulsive force. The prevention member 6 returns to the original position. Thus, it is possible to restrict the fall prevention member 6 from turning inward from the first predetermined position.

  Here, since the first predetermined position can be adjusted by changing the inclination or the like of the bent portion 61, the fall prevention member 6 is opened in consideration of the state in which the cover 2 is attached to the instrument body 1. It adjusts so that it may not be located inside the edge part of the part 20 (right side in Fig.3 (a)). By adjusting in this way, when attaching the cover 2 to the instrument main body 1, it is possible to prevent the fall prevention member 6 from being pushed by the cover 2 and being confined in the space between the instrument main body 1 and the cover 2. .

  By the way, when the fluorescent lamp 3 is removed from the socket 4, the fall prevention material 6 is oriented away from the instrument body 1 (clockwise direction in FIG. 1A, hereinafter referred to as “outward direction”). The fluorescent lamp 3 is prevented from being caught by the fall prevention material 6 by being rotated toward the opposite direction. However, in the conventional example, as shown in FIG. There was a possibility that the preventive material 6 would remain and the fluorescent lamp 3 would be caught by the fall preventive material 6 and could not be removed.

  Therefore, in this embodiment, means for restricting the rotation of the fall prevention material 6 is provided so that the fall prevention material 6 does not remain on the track for removing the fluorescent lamp 3 from the socket 4. Hereinafter, the means will be described with reference to the drawings. In the state where the fluorescent lamp 3 is mounted on the socket 4, when the fall prevention member 6 is rotated outward, as shown in FIGS. 4 (a) and 4 (b), the convex portion 61c of the bent portion 61 is formed. The bent portion 61 is bent by being pressed against the side surface of the socket body 40. When the fall prevention member 6 is further rotated outward from this state and the fall prevention member 6 reaches the second predetermined position, the projection 61c is directed away from the side surface of the socket body 40, that is, outward. Since a repulsive force is generated, the fall prevention member 6 stops after rotating to the third predetermined position.

  Here, since the third predetermined position can be adjusted by changing the inclination or the like of the bent portion 61, the fall prevention member 6 is located outside the fluorescent lamp 3 (on the left side in FIG. 4A). Adjust to position. By adjusting in this way, the fall prevention material 6 does not remain on the track for removing the fluorescent lamp 3 from the socket 4, so that the fluorescent lamp 3 can be prevented from being caught by the fall prevention material 6 and being unable to be removed.

  As described above, by arranging the bent portion 61 of the fall prevention member 6 between the cut-and-raised portion 50a and the side surface of the socket main body 40, the fall prevention member 6 is rotated inward from the first predetermined position. Since the restricting means for restricting the movement is configured, it is possible to prevent the fall prevention member 6 from being confined in the space between the instrument body 1 and the cover 2 when the cover 2 is attached to the instrument body 1. Further, the fall prevention material 6 is automatically turned to the third predetermined position and stopped by turning the fall prevention material 6 outwardly to the second predetermined position. It is possible to prevent the fall prevention material 6 from remaining on the track removed from the socket 4.

  By the way, in the said embodiment, the fall prevention material 6 can be freely rotated centering | focusing on the axial part 60 by inserting the axial part 60 of the fall prevention material 6 in the insertion hole 50a provided in the side-plate part 51 of the support spring 5. As shown in FIG. Although the cut-and-raised portion 50a is provided in the bottom plate portion 50 of the support spring 5, the portion that supports the fall-preventing member 6 so as to be rotatable and the cut-and-raised portion are provided as a base portion of the fixed base 10a may be provided. Specifically, as shown in FIGS. 5A and 5B, projecting pieces 11 projecting downward from both end edges in the width direction of the base portion 10 a are provided, and the shaft portion 60 is provided substantially at the center of the projecting piece 11. Is inserted through a substantially circular insertion hole 11a, and a substantially rectangular cut-and-raised portion 10b cut and raised downward from the base portion 10a is provided. Thus, by inserting the shaft portion 60 into the insertion hole 11a of the projecting piece 11, the fall prevention member 6 is rotatably attached to the projecting piece 11 about the shaft portion 60, and the cut-and-raised portion 10b and the socket A bent portion 61 of the fall prevention member 6 is disposed between the main body 40 and the body 40. The side plate portion 51 of the support spring 5 is cut out at a portion facing the protruding piece 11 so that the bent portion 61 of the fall prevention member 6 can be cut and raised between the portion 10b and the socket body 40. Formed. Even in the above configuration, the same effects as those of the above embodiment can be obtained.

It is principal part explanatory drawing which shows the lighting fixture of embodiment of this invention, (a) is a front view, (b) is a bottom view. It is explanatory drawing of a fall prevention material same as the above, (a) is the figure seen from one direction, (b) is the figure seen from the direction different from the said one direction, (c) is (a), (b It is the figure seen from a different direction. It is explanatory drawing which shows the control means which controls rotation to the inner side of a fall prevention material same as the above, (a) is a front view, (b) is a principal part enlarged view. It is explanatory drawing which shows the control means which controls rotation to the outer side of a fall prevention material same as the above, (a) is a front view, (b) is a principal part enlarged view. It is a figure which shows another structure same as the above, (a) is a front view, (b) is a bottom view. It is a side view which shows the conventional lighting fixture. It is explanatory drawing which shows a problem same as the above, (a) is a front view which shows the case where a fall prevention material is confined in the space between an instrument main body and a cover, (b) is a fall prevention material sockets a fluorescent lamp. It is a front view which shows the case where it remains on the track | orbit removed from. It is a whole perspective view same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Instrument main body 2 Cover 20 Opening part 3 Fluorescent lamp 30 Base 4 Socket 40 Socket main body 5 Support spring 50a Cut-and-raised part 6 Fall prevention material 60 Shaft part 61 Bending part

Claims (4)

  A fixture body, one or more sockets in which a straight fluorescent lamp provided on the fixture body and having a base on at least an end thereof is detachably mounted, and a fluorescent lamp is mounted in the socket. One or a plurality of support springs that sandwich the side surface of the base of the lamp, and a fluorescent lamp that is attached to the support spring or its vicinity and is rotatable about the mounting location, and is provided so as to straddle the lower surface of the fluorescent lamp With an anti-drop material that prevents the socket from falling off the socket, an opening that allows the socket and the support spring to face the outside, and a cover that can be attached to the instrument body, with the cover attached to the instrument body A lighting fixture that attaches a fluorescent lamp to the socket from the outside of the cover, up to a position where the fall prevention material can be stored in the space between the fixture body and the cover An illumination fixture comprising the restricting means for restricting the rotation of the fall-preventing member to prevent movement.   The lighting apparatus according to claim 1, wherein the fall prevention material is made of an elastic wire.   The restricting means has a structure that elastically biases the fall prevention material in a direction away from the instrument body when the fall prevention material rotates in a direction away from the instrument body from a predetermined position in a rotation range of the fall prevention material. The lighting fixture according to claim 1 or 2, characterized in that   The lighting device according to any one of claims 1 to 3, wherein the restricting means is provided in the vicinity of a rotation center of the fall prevention material.

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