JP6133751B2 - lighting equipment - Google Patents

Description

  The present invention relates to a lighting fixture embedded in a ceiling board or the like.

  Conventionally, for example, it is configured to be mounted from the indoor side to a groove portion or the like provided on a ceiling board, and has an embedded body having a light source inside and a flange that is in contact with the front side surface of the ceiling board at the bottom. Various lighting fixture mounting structures are known.

  In Patent Document 1, a mounting bracket that comes into contact with the back side surface of the ceiling plate is provided on the side wall of the instrument body, and the mounting bracket is brought into contact with the back side surface of the ceiling board by inserting a finger from the inside of the instrument body. The thing which clamps and attaches a ceiling board with the flange of an attachment metal fitting and an instrument main body is disclosed.

  Patent Document 2 includes a mounting bracket on the side wall of the instrument body that is bent when placed in the groove and presses the inner surface of the groove by the stress of spreading outward, and the width of the opening of the groove is widened. There has been disclosed a technique in which a fixture body is fitted into a groove portion in a state of being suppressed to a smaller size, and a ceiling plate is sandwiched between a fixture and a flange of the fixture body.

  In Patent Document 3, a tool that is formed in a U-shape and has flanged contact portions on both side walls that contact the back side surface of the ceiling plate is provided on the upper side of the device body, and is provided on both side walls of the device body. With the upper surface side of the formed flange in contact with the front side surface of the groove portion, by rotating the screw, the lower surface side of the contact portion of the tool is brought into contact with the rear side surface of the groove portion, and the flange of the tool and the tool body In the above, there is disclosed a method in which a ceiling board is sandwiched and attached.

Utility Model Registration No. 3033234 Japanese Patent No. 4716924 JP 2010-40203 A

  However, in the mounting structure as in Patent Document 1, when a lighting fixture is mounted in a narrow groove or the like, it is difficult to perform a mounting operation by inserting a finger from the inside of the lighting fixture and operating a mounting bracket. .

  In addition, in the mounting structure as disclosed in Patent Document 2, it is necessary to fit into the groove while suppressing the spread of the mounting bracket during mounting, and the mounting bracket that naturally spreads while being fitted into the groove is the end of the groove, etc. There is a problem that the construction material such as the ceiling board is damaged due to contact or rubbing.

  In the mounting structure such as Patent Document 1 in which the mounting strength is secured by the frictional force between the flange and the ceiling plate and in Patent Document 2 in which the mounting strength is secured by the stress of the mounting bracket spreading, the mounting strength on the ceiling plate surface is low. There was room for improvement in order to increase the mounting strength.

  Furthermore, in the mounting structure as in Patent Document 3, if the ceiling plate on both sides of the groove portion to be sandwiched between the flange of the instrument body and the contact portion of the tool is not set to the same thickness, the flange and the contact portion Any one of the ceiling panels on both sides sandwiched between the two does not come into contact with the ceiling board surface, and a gap is generated between the ceiling board surface and the flange or the contact portion, so that the ceiling board cannot be attached. There was a problem.

  An object of the present invention is to provide a luminaire that can be easily attached / detached even in a narrow groove provided on a ceiling plate, and can secure high attachment strength with a simple structure.

  That is, this invention has the structure as described in following [1]-[2].

[1] An instrument main body attached from the front side of the ceiling board to the groove provided in the ceiling board, and at least partly contacting the front side surface of the ceiling board;
A connecting and holding member that has a rod-like body extending vertically and is provided on the upper part of the instrument body so as to be rotatable from the indoor side;
A movable plate provided so as to be movable up and down along the axis of the connection holding member by rotating the connection holding member;
A leaf spring provided so as to be positioned on both sides of the groove width in the opening width direction when the instrument body is attached to the groove;
With
The leaf spring is provided so that the upper end moves together with the moving plate, the lower end is formed as a free end and abuts against the side of the instrument body, and the intermediate portion is larger than the opening width of the groove. A luminaire characterized by being formed so as to protrude outward with a small width dimension.

[2] A restricting portion that is located below the upper limit position of the moving plate that moves up and down, is located inside the minimum opening width of the groove and outside the maximum width of the moving plate,
2. The lighting device according to claim 1, wherein when the moving plate is raised inside the restricting portion, an outer surface portion of the leaf spring comes into contact with the restricting portion.

  According to the invention described in [1] above, the instrument main body attached from the front side of the ceiling plate to the groove portion provided on the ceiling plate and having at least a part in contact with the front side surface of the ceiling plate, and the bar shape extending vertically A connecting and holding member provided on the upper part of the instrument body so as to be rotatable from the indoor side, a moving plate provided so as to be movable up and down along the axis of the connecting and holding member by rotating the connecting and holding member, And a leaf spring provided so as to be positioned on both sides of the opening of the groove when the main body is attached to the groove. The leaf spring is provided such that the upper end moves together with the moving plate, and the lower end serves as a free end. It is formed and abuts against the side surface of the instrument body, and the intermediate part is formed so as to protrude outward with the width dimension smaller than the opening width dimension of the groove part. Like sandwiching The net structure, it is possible to attach the lighting fixtures only on the ceiling plate to the rotational operation of the connection holding member from the interior side easily.

  While the moving plate descends and the lower end of the leaf spring comes into contact with the side surface of the appliance body, the vertical position is fixed by contacting the lower part of the appliance body or the upper surface of the ceiling plate, etc. The middle part protrudes outward from the opening width dimension of the groove part and can be brought into contact with the back side of the ceiling board, and the lighting equipment can be securely attached by sandwiching the ceiling board from the front and back together with a part of the equipment body Can be fixed.

  Even the middle part of the leaf spring formed so as to protrude most outward is formed with a dimension smaller than the opening width dimension of the groove, so that the leaf spring is being fitted into the groove. However, there is no possibility that the construction material of the ceiling plate will be damaged by contacting or rubbing the end of the groove or the like.

  Since the leaf spring abuts against the back side of the ceiling plate, the ceiling plate can be sandwiched together with a part of the fixture body using the force to hold down the ceiling plate of the leaf spring, ensuring the necessary mounting strength. Can do.

  Since leaf springs are used, even if the thickness of both sides of the groove of the ceiling plate is different, it is possible to match the ceiling plates on both sides with different plate thicknesses by using the elastic force of the leaf springs, ensuring the lighting fixture It can be attached and fixed to.

  According to the invention described in [2] above, the restricting portion that is positioned below the upper limit position of the moving plate that moves up and down, is located inside the minimum opening width of the groove and outside the maximum width of the moving plate. When the movable plate is raised inside the restricting portion, the outer surface portion of the leaf spring comes into contact with the restricting portion, so that the leaf spring can be restricted to be surely smaller than the opening width dimension of the groove portion. The lighting fixture can be reliably removed from the groove.

  That is, in order to take out the mounted lighting fixture from the groove, it is necessary to make the outward projecting width dimension of the leaf spring smaller than the opening width dimension of the groove section. In some cases, the leaf spring that protrudes largely outwards is less likely to have a width dimension smaller than the opening width dimension of the groove section while being deformed to be larger than the opening width dimension of the groove section due to secular change or the like.

  Even in such a case, when the moving plate rises inside the restricting portion, the leaf spring comes into contact with the restricting portion, and the portion projecting outward of the leaf spring is forced to the minimum opening width of the groove portion. Since the leaf spring can be restrained so as to be surely suppressed to a dimension smaller than the opening width dimension of the groove, it can be reliably removed from the groove.

It is external appearance explanatory drawing of the lighting fixture which concerns on this invention. It is a perspective view of the lighting fixture which concerns on this invention. It is explanatory drawing for demonstrating the attachment fixture of the lighting fixture which concerns on this invention. It is explanatory drawing for demonstrating the attachment method of the lighting fixture which concerns on this invention. It is explanatory drawing for demonstrating the removal method of the lighting fixture which concerns on this invention. It is explanatory drawing for demonstrating the attachment fixture in the case of not providing a control part.

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

  FIG. 1 is an explanatory view of the appearance of the lighting fixture 100, FIG. 2 is a perspective view of the lighting fixture 100, FIG. 3 is an explanatory view for explaining the mounting fixture 2 of the lighting fixture 100, and FIG. FIG. 5 is an explanatory diagram for explaining a method for removing the lighting fixture 100, and FIG. 6 is an explanatory diagram for explaining a mounting fixture when the restricting portion 27 is not provided. FIG.

  The luminaire 100 according to the present invention is attached to the groove G provided in the ceiling plate C.

  Hereinafter, the case where the lighting fixture 100 is attached to the ceiling panel C will be described, and the interior side is defined as the front side with the ceiling panel C as a boundary, and the opposite side is defined as the back side. The indoor side is defined as the lower side, and the opposite side is defined as the upper side.

  The lighting fixture 100 includes a fixture main body 1, a connection holding member 3, and a mounting fixture 2. The connection holding member 3 having a bar-like body extending vertically is inserted into the mounting fixture 2, and the connection holding member 3 is It is provided so that it can be rotated from the indoor side.

  The instrument body 1 is made of a metal such as aluminum, and is attached to a groove portion G provided on the ceiling plate C so as to be embedded from the front side surface of the ceiling plate C.

  In addition, the instrument main body 1 may be made of not only a metal but also a resin.

  As shown in FIG. 1 (a) a front view of the lighting fixture 100, (b) a plan view of the lighting fixture 100, and (c) a side view of the lighting fixture 100, the fixture main body 1 is formed in a rectangular parallelepiped shape, Is provided with a mounting fixture 2 which will be described later for mounting and fixing the instrument body 1 so as to be embedded in the groove G provided on the ceiling plate C.

  The instrument main body 1 has a U-shaped cross section in the short direction, a light emitting portion in which an LED or a circuit serving as a light source for illumination is provided inside the U shape, a spotlight, a pendant light, etc. A duct rail portion (not shown) that can be slidably mounted with the illumination lamp is provided, and a portion where the light emitting portion is provided is closed by a lid portion 13 made of a translucent plate or the like.

  The instrument main body 1 is provided with flanges 11 at the lower ends on both sides along the longitudinal direction.

  When the appliance main body 1 is attached to the groove part G so as to be embedded, the upper surface side of the flange part 11 comes into contact with the lower side surface of the groove part G of the ceiling panel C, that is, the front side surface of the groove part G of the ceiling panel C. It is configured.

  For example, an airtight packing is provided at a portion of the flange portion 11 that contacts the front side surface of the ceiling plate C so that the airtightness between the flange portion 11 and the ceiling plate C is maintained.

  In the upper part of the instrument main body 1, when attaching the instrument main body 1 to the ceiling plate C, an operation hole 12 is provided so that the connection holding member 3 can be rotated from the indoor side, for example, the instrument main body 1. .

  The operation hole 12 is formed to have a diameter sufficiently larger than the diameter of the rod-like body of the connection holding member 3, for example, the screw member 31, so that it can be easily rotated from the inside of the instrument body 1.

  The mounting fixture 2 is made of a metal such as aluminum, and includes a frame body 21 formed of a plate-like body, a bottom plate 23 to which the frame body 21 is attached, a connection holding member 3 inserted through the mounting fixture 2, and an elastic member. A plate spring 22 having force, and a single moving plate 25 provided to be movable up and down along the axis of the connection holding member 3 are provided.

  The mounting fixture 2 is provided on the instrument main body 1 so as to be positioned on the back side of the ceiling board C when the instrument main body 1 is installed so as to be embedded in the groove G from the front side surface of the ceiling board C. As shown in the figure, it is provided on the upper part of the instrument body 1.

  The frame body 21 is formed by bending a plate-like body, screwed in parallel to the longitudinal direction of the instrument main body 1 via the bottom plate 23, and disposed in a convex shape on the upper part of the instrument main body 1.

  An insertion hole 231 having a smaller diameter than the operation hole 12 provided on the upper surface of the instrument body 1 is formed in the bottom plate 23 to which the frame body 21 is attached, and the insertion hole 231 overlaps with the operation hole 12 of the instrument body 1. The bottom plate 23 is disposed on the bottom plate 23, and the frame body 21 is attached on the bottom plate 23.

  The frame body 21 formed in a convex shape has openings 211 that are open on both sides in the short direction of the instrument body 1.

  An insertion hole 24 having a diameter larger than that of the screw member 31 of the connection holding member 3 is provided in the upper portion of the frame body 21, and the connection holding member 3 inserted from the operation hole 12 of the instrument body 1 is provided in the insertion hole 24. Is inserted.

  A moving plate 25 to which a leaf spring 22 is attached is provided inside the frame body 21.

  The moving plate 25 is provided with a screw hole 26 formed with a female screw into which the connection holding member 3 that is a male screw is screwed, and is configured to be movable up and down along the axis of the connection holding member 3 in the frame 21. Has been.

  The screw member 31 of the connection holding member 3 screwed into the screw hole 26 is provided so as to be rotatable from the inside of the instrument body 1 through the operation hole 12 of the instrument body 1, and the moving plate 25 is connected to the connection holding member 3. It is configured to ascend or descend with the rotation operation.

  The moving plate 25 is formed in a square shape having a dimension that can move up and down inside the frame body 21, and its rotation is restricted by both side walls of the frame body 21.

  The screw member 31 is inserted into the insertion hole 231 of the bottom plate 23 from the operation hole 12 provided in the upper part of the instrument body 1, and is inserted into the insertion hole 24 of the screw hole 26 and the upper part of the frame body 21. The member 32 is fastened at the upper part of the mounting fixture 2.

  The leaf spring 22 is made of a single plate-like material having elasticity, is bent according to the shape of the bottom of the moving plate 25, and is attached to the bottom of the moving plate 25.

  Both end portions of the leaf spring 22 are provided as a lower end portion 22b so as to hang downward.

  Note that “attached” means that the plate spring 22 is fixedly attached to the moving plate 25 by welding or the like, and that the moving plate 25 and the plate spring 22 are individually provided, and the plate spring 22 is attached to the moving plate 25. It is used in the meaning including both states of sticking or abutting.

  The leaf springs 22 are provided so as to be positioned on both sides of the groove part G in the opening width direction when the instrument body 1 is attached to the groove part G.

  The plate spring 22 is provided with a hole 221 to which the connection holding member 3 is attached together with the screw hole 26 of the moving plate 25. The hole 221 of the plate spring 22 is, for example, a screw hole of the moving plate 25 in which a female screw is formed. The diameter is larger than 26.

  The hole 221 of the leaf spring 22 may be formed to have the same size as the diameter of the screwing hole 26. At least the connection holding member 3 is screwed into the screwing hole 26, and the moving plate 25 is connected and held. What is necessary is just to be comprised so that a movement along the axis | shaft of the member 3 is possible.

  The leaf spring 22 is provided so as to be urged upward by an urging member 33 to be described later and stuck to the bottom of the moving plate 25 so that the upper end portion 22a moves together with the moving plate 25. It is provided so as to extend from the portion 211 to the outside lower side of the frame body 21.

  As for the leaf | plate spring 22, each lower end part 22b is formed as a free end, and the lower end part 22b is each in contact with the side part lower part of the instrument main body 1, for example.

  The leaf spring 22 is configured to be deformed along with the movement of the moving plate 25, and the lower end portion 22 b of the leaf spring 22 is brought into contact with the side surface side of the device body 1 when the moving plate 25 is lowered. The position in the vertical direction is fixed by contacting the lower portion of the main body 1 or the upper surface of the ceiling plate C, and the intermediate portion 22c of the leaf spring 22 is bent so as to protrude in the opening width direction of the groove portion G.

  On the other hand, the upper end portion 22a of the leaf spring 22 is moved upward as the moving plate 25 is moved upward, so that the amount of protrusion of the intermediate portion 22c outward is reduced.

  The shape of the leaf spring 22 will be described in detail. When the moving plate 25 is located at the uppermost position, the leaf spring 22 is formed in a shape that gently curves outward from the moving plate 25 to the lower end portion 22b. .

  When the moving plate 25 is positioned at the uppermost position, the intermediate portion 22c of the leaf spring 22 is formed so as to protrude outward, but the opening width of the groove portion G even at the maximum protruding portion. The width dimension is set to be smaller than the dimension.

  Even if the lower end portion 22b of the leaf spring 22 is formed as a free end, the lower end portion 22b of the leaf spring 22 is configured to abut against the lower end portion of the side surface of the instrument body 1 so as not to be lowered below the flange portion 11. The leaf spring 22 is gradually bent and curved so as to project outward in accordance with the amount of movement of the moving plate 25, and the moving plate 25 is located at the lowest position. The leaf spring 22 is deformed into a shape that is curved so as to protrude outward, that is, a shape that protrudes outward most.

  Since the lower end portion 22b of the leaf spring 22 is formed as a free end, the leaf spring 22 can be freely moved according to the vertical movement of the moving plate 25, and the leaf spring 22 can be adjusted according to the thickness of the ceiling plate C to be attached. It can be freely bent and brought into contact with the back surface of the ceiling board C.

  For example, the plate spring 22 is such that the plate surface of the lower end portion 22 b of the plate spring 22 comes into contact with the front side surface of the ceiling plate C of the instrument body 1 (the ridge portion 11). Or when the gap between the groove portion G and the side surface of the instrument body 1 is narrow, by contacting the end of the back side surface of the ceiling plate C in contact with the side surface of the instrument body 1, that is, a leaf spring When the lower end 22b of 22 abuts at least the side surface of the instrument body 1, the leaf spring 22 can be flexed freely according to the thickness of the ceiling plate C to be attached.

  When the moving plate 25 is lowered by the rotation operation of the connection holding member 3, the luminaire 100 is deformed so as to spread outward beyond the opening width dimension of the groove portion G and contacts the back side surface of the ceiling plate C. By contact, the moving plate 25 moves downward and is sandwiched from the front and back by the leaf spring 22 projecting in the opening width direction of the groove portion G of the mounting fixture 2 and the flange portion 11 of the fixture body 1. It is fixed and attached to.

  The leaf spring 22 bends so as to protrude larger than the opening width dimension of the groove portion G as the moving plate 25 descends, so that the luminaire 100 attached to the groove portion G does not come off the ceiling plate C. It can be securely attached to the ceiling board by being sandwiched together with the flange 11.

  It is preferable that an urging member 33 made of, for example, a spring spring is provided between the bottom plate 23 and the leaf spring 22.

  By providing the urging member 33 between the bottom plate 23 and the leaf spring 22, the leaf spring 22 can be always urged upward, and rattling of the leaf spring 22 can be prevented. it can.

  The urging member 33 is not limited to the illustrated form, and may not be attached to the shaft of the connection holding member 3, for example, and always urges at least the leaf spring 22 upward. Anything can be used.

  The frame body 21 is provided with a restricting portion 27 thereabove, and the lower end portion of the restricting portion 27 is formed on both sides in the opening width direction of the groove portion G so as to face the plate surface of each leaf spring 22 as shown in the figure. ing.

  The restricting portions 27 are formed so as to widen downward toward the bottom so that the distance between the restricting portions 27 provided on both sides in the width direction of the groove portion G gradually widens downward.

  The lower limit of the restricting portion 27 is located below the upper limit position of the moving plate 25 that moves up and down, and is located inside the minimum opening width of the groove portion G and outside the maximum width of the moving plate 25. Is set.

  The upper limit position of the moving plate 25 indicates an upper limit position where the moving plate 25 can be raised inside the frame body 21.

  By being configured in this way, the moving plate 25 can move up and down inside the restricting portion 27, and the restricting portion 27 raises the moving plate 25 inside the restricting portion 27 when removing the mounting fixture 2. The outer surface portion of the leaf spring 22, that is, the leaf surface of the leaf spring 22 is configured to abut against the lower end portion of the restricting portion 27.

  By configuring in this way, the leaf spring 22 abuts against the restricting portion 27 and deforms so that the outward protrusion of the leaf spring 22 is forcibly closed inward, and is smaller than the opening width dimension of the groove portion G. The size can be suppressed.

  For example, when the lighting fixture 100 is attached to the ceiling plate C for a long period of time, when the attachment fixture 2 is removed, the leaf spring 22 is originally gently bent outward as the moving plate 25 rises. The plate spring 22 that is bent so as to protrude outward larger than the opening width dimension of the groove portion G is bent. However, it may become hazy as it is, and it may be difficult to return to the original shape.

  Even when the leaf spring 22 remains bent, the movable plate 25 rises while the lower end portion of the restricting portion 27 is in contact with the outer surface portion of the leaf spring 22, and the leaf spring 22 is attached to the biasing member 33. By pulling upward by the force, the bending of the plate spring 22 is gradually suppressed from the upper end portion 22 a side to the lower end portion of the restricting portion 27, and the leaf spring 22 is accommodated inside the restricting portion 27.

  If the lower end portion of the restricting portion 27 is configured to come into contact with the outer surface portion of the leaf spring 22 when the moving plate 25 is located at the uppermost position, the restricting portion 27 is further outside the leaf spring 22. The spread to the direction can also be suppressed.

  As shown in FIG. 6, if the restricting portion 27 is not provided in the frame body 21, when the mounting fixture is removed while the leaf spring 22 remains in such a bent state, the frame 21 is bent as the moving plate 25 is raised. Since the flat leaf spring 22 rises in a deformed shape, the width dimension of the leaf spring 22 does not become smaller than the opening width dimension of the groove portion G, so that the lighting device cannot be removed from the groove portion G.

  As described above, if the restricting portion 27 is provided as shown in FIGS. 1 to 5, it is difficult to achieve a width dimension smaller than the opening width dimension of the groove portion G while the leaf spring 22 is largely deformed as described above. Even if it is a case, the leaf | plate spring 22 is accommodated inside the frame 21 and the illuminating device can be removed from the groove part G by suppressing the outward spread of the leaf | plate spring 22 by the control part 27. FIG.

  Based on FIGS. 3 and 4, a method of attaching the lighting fixture 100 in which the fixture 2 is installed on the upper portion of the fixture body 1 will be described.

  As shown in FIG. 3, the initial state of the mounting fixture 2 is a state in which the movable plate 25 is located at the upper portion and the leaf spring 22 is gently curved outward with a width smaller than the opening width of the groove G. To do.

  First, the mounting fixture 2 is set in an initial state, and the mounting fixture 2 is inserted into the opening of the groove portion G from above, and the upper surface of the flange portion 11 of the instrument body 1 is brought into contact with the front side surface of the ceiling plate C.

  As shown in FIG. 4A, with the upper surface of the flange portion 11 in contact with the front side surface of the ceiling board C, a screwdriver or the like is inserted from the inside of the instrument body 1 so that the connection holding member 3 is rotated around the axis. Rotate (eg, rotate clockwise).

  In addition, when inserting a screwdriver etc. from the inner side of the instrument main body 1, it inserts by inserting through the hole previously provided in the cover part 13 of the instrument main body 1, or removing the cover part 13 of the instrument main body 1 beforehand. You can do it.

  As the connecting and holding member 3 rotates, the moving plate 25 gradually descends, and the lower end portion 22b of the leaf spring 22 abuts against the side surface of the instrument body 1, so that the leaf spring 22 gradually stretches outward. It bends to come out.

  Further, by rotating the connection holding member 3, as shown in FIG. 4B, the lower end portion 22b of the leaf spring 22 comes into contact with the upper surface of the flange portion 11 of the instrument body, and the vertical position is fixed. Then, the outer surface portion (plate surface) of the leaf spring 22 is bent so as to protrude outward, and the outer surface portion (plate surface) of the leaf spring 22 protruding outward contacts the back side surface of the ceiling plate C. The ceiling board C is sandwiched from the front and back together with the flange 11 of the appliance body 1.

  The outer surface portion of the leaf spring 22 abuts on the back side surface of the ceiling plate C, and the upper surface of the flange portion 11 of the appliance body 1 abuts on the front side surface of the ceiling plate C. It is attached and fixed so as to be sandwiched from the front and back by the flange portion 11.

  Then, the removal method of the lighting fixture 100 is demonstrated based on FIG.

  With the ceiling plate C sandwiched from the front and back by the leaf spring 22 and the flange portion 11 of the instrument body 1, a driver or the like is inserted from the inside of the instrument body 1 with the leaf spring 22 protruding so as to project outward. Then, the connection holding member 3 is rotated around the axis in the direction opposite to that at the time of attachment (for example, rotated counterclockwise).

  As described above, if the lighting fixture 100 is attached to the ceiling plate C for a long period of time, the bending of the leaf spring 22 may become distorted, making it difficult to return to the original shape. In this case, FIG. ), The movable plate 25 gradually rises as the connecting and holding member 3 rotates, and the lower end portion 22b is a free end, so that it remains bent so as to project outward. The leaf spring 22 is also urged upward by the urging force of the urging member 33 and gradually rises.

  As shown in FIG. 5 (b), when the outer surface portion of the raised leaf spring 22 comes into contact with the lower end of the restricting portion 27, the outwardly projecting deflection is pushed back inward, and the leaf spring 22 further outwards. Suppresses the spread of

  Further, by rotating the connection holding member 3, the leaf spring 22 whose outward spread is suppressed is gradually accommodated inside the restricting portion 27 as the moving plate 25 rises.

  When the leaf spring 22 is accommodated inside the restricting portion 27 and the width dimension of the leaf spring 22 is smaller than the opening width dimension of the groove portion G, the lighting fixture 100 is removed by removing the mounting fixture 2 from below.

  In the above description, the restricting portions 27 are provided on both sides of the groove portion G in the opening width direction, and are formed so as to widen toward the bottom. However, the present invention is not limited to this, and at least the restricting portion 27 includes the movable plate. As long as it is configured to be able to suppress the overhang beyond the opening width of the groove portion G of the leaf spring 22 that rises with the rise of 25 to a size smaller than the opening width of the groove portion G.

  For example, a rod-like body that comes into contact with the plate surface of the plate spring 22 that rises as the moving plate 25 rises may be provided as a restricting portion, and the rod-like body may be attached to any part of the mounting fixture 2. .

  In the above description, the moving plate 25 is provided in the frame body 21 and the leaf spring 22 is attached to the bottom of the moving plate 25. However, for example, the moving plate 25 is not provided and the moving plate 25 corresponds to the moving plate 25. The thickness may be increased by increasing the thickness of the partial leaf spring 22.

  In the above description, the upper end portion 22a of the leaf spring 22 is attached so as to stick to the bottom portion of the moving plate 25. However, the present invention is not limited to this, and the upper end portion 22a is moved to the moving plate 25 by welding or the like. The upper end portion 22a may be attached so as to stick to the upper portion of the moving plate 25, or may be fixedly attached to the upper portion of the moving plate 25. What is necessary is just to be comprised so that the upper end part 22a of 22 may be provided so that it may move with the movement board 25. FIG.

  When the upper end 22a of the leaf spring 22 is attached so as to stick to the upper portion of the moving plate 25, for example, the leaf spring 22 is always attached downward between the upper plate of the frame 21 and the leaf spring 22. In other words, a biasing member or the like that constantly biases the leaf spring 22 toward the moving plate 25 may be provided so that the upper end portion 22a sticks to the moving plate 25.

  The means configured so that the upper end portion 22a sticks to the moving plate 25 is not limited to one using an urging force, and may use a magnetic force, for example.

  In the above description, the lighting fixture 100 is attached to the ceiling plate C. However, when the lighting fixture 100 is attached to the wall surface, the mounting fixture 2 according to the present invention can be attached.

  As described above, the fixture body 1 attached from the front side of the ceiling plate C to the groove portion G provided on the ceiling plate C and having at least a part in contact with the front side surface of the ceiling plate C, and the rod-like body extending vertically. A connection holding member 3 provided on the upper part of the instrument body 1 so as to be rotatable from the indoor side, and a movable plate provided so as to be movable up and down along the axis of the connection holding member 3 by rotating the connection holding member 3 25 and a leaf spring 22 provided so as to be positioned on both sides in the opening width direction of the groove portion G when the instrument body 1 is attached to the groove portion G. The upper end portion 22a of the leaf spring 22 moves together with the moving plate 25. The lower end portion 22b is formed as a free end and abuts against the side surface side of the instrument body 1 so that the intermediate portion 22c protrudes most outward with a width dimension smaller than the opening width dimension of the groove portion G. Formed into Therefore, it is possible to easily attach the lighting fixture 100 to the ceiling plate C by simply rotating the connection holding member 3 from the indoor side by a simple structure in which the ceiling plate C is sandwiched between the fixture body 1 and the leaf spring 22. it can.

  While the moving plate 25 descends and the lower end portion 22b of the leaf spring 22 abuts on the side surface of the instrument main body 1, the vertical position is fixed by contacting the lower part of the instrument main body 1 or the upper surface of the ceiling board C. Thus, the intermediate portion 22c of the leaf spring 22 can be protruded outward from the opening width dimension of the groove portion G so as to be brought into contact with the back surface side of the ceiling plate C. The lighting fixture 100 can be securely attached and fixed so as to be sandwiched from the front and back sides.

  Even the intermediate portion 22c of the leaf spring 22 formed so as to protrude most outward is formed with a size smaller than the opening width size of the groove portion G, so that the lighting device 100 is fitted into the groove portion G. During this time, the leaf spring 22 does not naturally expand beyond the opening width dimension of the groove portion G, so that there is no possibility that the construction material of the ceiling plate C is damaged by contacting or rubbing the end portion of the groove portion G.

  Since the leaf spring 22 abuts against the back side surface of the ceiling plate C, the ceiling plate C can be sandwiched together with a part of the appliance main body 1 by using the force of pressing the ceiling plate C of the leaf spring 22. Mounting strength can be secured.

  Since the leaf spring 22 is used, even if the thicknesses on both sides of the groove portion G of the ceiling plate C are different from each other, the elastic force of the leaf spring 22 can be used to match the ceiling plates C on both sides with different plate thicknesses. The lighting apparatus 100 can be securely attached and fixed.

  The moving plate 25 includes a restricting portion 27 that is located below the upper limit position of the moving plate 25 that moves up and down, and that is located inside the minimum opening width of the groove G and outside the maximum width of the moving plate 25. When the inner side of the restricting portion 27 is raised, the outer surface portion (plate surface) of the leaf spring 22 comes into contact with the restricting portion 27, so that the leaf spring 22 is restrained to be surely suppressed to a size smaller than the opening width size of the groove portion G. Therefore, the luminaire 100 can be reliably removed from the groove G.

  That is, in order to take out the mounted lighting fixture 100 from the groove G, it is necessary to make the outward projecting width dimension of the leaf spring 22 smaller than the opening width dimension of the groove G. When the leaf spring 22 that protrudes outward larger than the opening width dimension is deformed larger than the opening width dimension of the groove part G due to secular change or the like, it is difficult to become a width dimension smaller than the opening width dimension of the groove part G There is.

  Even in such a case, when the moving plate 25 rises inside the restricting portion 27, the leaf spring 22 abuts on the restricting portion 27 and the portion protruding outward from the leaf spring 22 is forcibly forced. Since the leaf spring 22 can be restrained so as to be surely suppressed to a size smaller than the opening width dimension of the groove portion G by being pressed inside the restriction portion 27 smaller than the minimum opening width of the groove portion G, the lighting device 100 can be restricted to the groove portion. Can be reliably removed from G.

  The embodiment described above is merely an example of the present invention, and it is needless to say that the specific configuration and the like can be appropriately changed and designed within the scope of the effects of the present invention.

DESCRIPTION OF SYMBOLS 1 ... Appliance main body 2 ... Mounting fixture 3 ... Connection holding member 22 ... Leaf spring 25 ... Moving plate 27 ... Restriction part 100 ... Lighting fixture C ... Ceiling board G ... Groove part

Claims (1)

An instrument body that is attached from the front side of the ceiling plate to the groove provided in the ceiling plate, and at least a part of which is in contact with the front side surface of the ceiling plate;
A connecting and holding member that has a rod-like body extending vertically and is provided on the upper part of the instrument body so as to be rotatable from the indoor side;
A movable plate provided so as to be movable up and down along the axis of the connection holding member by rotating the connection holding member;
A leaf spring provided so as to be positioned on both sides of the groove width in the opening width direction when the instrument body is attached to the groove;
With
The leaf spring is provided so that the upper end moves together with the moving plate, the lower end is formed as a free end and abuts against the side of the instrument body, and the intermediate portion is larger than the opening width of the groove. Is also formed to protrude outwards with a small width dimension ,
It is located below the upper limit position of the moving plate that moves up and down, and includes a restricting portion located inside the minimum opening width of the groove and outside the maximum width of the moving plate,
When the moving plate is raised inside the restricting portion, an outer surface portion of the leaf spring comes into contact with the restricting portion .

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