JP7108233B2 - spring system and lighting system - Google Patents

Description

Embodiments of the present invention relate to a spring device using a wire spring and a lighting device using this spring device.

Conventionally, for example, in a lighting device, a spring device is used to detachably attach a light source unit to a fixture body.

A torsion spring is often used for such a spring device. However, the torsion spring always exerts an elastic force in the direction in which the light source unit is attached to the fixture body. A mounting operation is required, which may be inconvenient.

Also, there is a mounting structure in which a wire spring is supported via a slide mechanism, the wire spring is held in a pulled-out state, and an elastic force is generated by pushing back the wire spring, but the structure is complicated. be.

JP 2016-212954 A

SUMMARY OF THE INVENTION An object of the present invention is to provide a spring device and a lighting device that are simple in structure and easy to use.

A spring device of an embodiment includes a wire spring, a bearing member, and a pressing member. The wire spring has a hook portion, a pair of arm portions bent from both ends of the hook portion so as to face each other, and a pair of shaft portions bent from the ends of these arm portions. The bearing member rotatably bears the pair of shaft portions of the wire spring. A pair of arm portions of a wire spring that rotates in one direction come into contact with the pressing member. The holding member elastically deforms the wire spring so that the gap between the pair of arms widens until the wire spring rotates to a predetermined rotation position, and when the wire spring rotates in one direction beyond the predetermined rotation position, the holding member elastically deforms the wire spring. The wire spring is pressed to rotate in one direction by an elastic force that narrows the gap between the pair of arm portions. The pressing member is installed on the same member as the bearing member.

According to the embodiment, it can be expected to provide a spring device that has a simple configuration and is easy to use.

1 is an exploded perspective view of a fixture body and a light source unit of a lighting device showing an embodiment; FIG. It is a perspective view of the attachment state of the fixture main body and light source unit of the lighting device same as the above. Fig. 2 is a perspective view of a mounting device including a spring device of the lighting device; It is a side view which shows the relationship between the wire spring of a spring apparatus same as the above, and a pressing member. FIG. 5 is a front view of the wire spring and the bearing member in the neutral position of the same spring device as viewed from arrow A in FIG. 4 ; It is a front view of the wire spring of the same spring device. It is a top view of a spring device same as the above. It is a front view of the spring support of the attachment device same as the above. FIG. 2 is a perspective view of a state in which a wire spring of the same light source unit is in a neutral position; FIG. 4 is a perspective view of a state in which a wire spring of the same light source unit is in an unfolded position; It is a perspective view of the state which the wire spring of the light source unit same as the above rotates in a folding rotation direction. Fig. 10 is a perspective view of the wire spring of the same light source unit in a mounting position; It is a perspective view of the one side hanging state of the light source unit same as the above. It is sectional drawing of the one side suspension state of the light source unit same as the above. It is a perspective view of the both-sides hanging state of the light source unit same as the above. It is sectional drawing of the one side push-up state of the light source unit same as the above. It is sectional drawing of the other one side push-up state of the light source unit same as the above. It is sectional drawing of the other one side push-up state of the light source unit same as the above. It is sectional drawing of the mounting state of a light source unit same as the above.

An embodiment will be described below with reference to the drawings.

A lighting device 10 is shown in FIGS. The lighting device 10 is, for example, a ceiling lighting fixture. The lighting device 10 includes a fixture body 11 installed on an installation surface such as a ceiling surface, a light source unit 12 detachably attached to the fixture body 11, a fixture body 11 as a first member, and a second member. and a light source unit 12 detachably attached to each other. The illumination device 10 is formed in a rectangular outer shape. In this embodiment, the illumination device 10 is formed in a square outer shape of 400 mm in length and width, for example.

The instrument main body 11 is integrally formed by pressing a metal plate, for example. The device body 11 has a rectangular top surface 15, a side surface 16 bent downward from the periphery of the top surface 15, and a substantially L-shaped cross section bent outward from the side surface 16. A fitting protrusion 17 is provided. Mounting holes 18 for installation, wiring holes 19 and the like are formed in the top surface portion 15 .

A power supply unit 21, a terminal block 22, and the like are arranged in the instrument main body 11. As shown in FIG. The power supply unit 21 is arranged along two opposite sides of the instrument main body 11 on the lower surface, which is the inner surface of the top surface portion 15 . A cable with a connector for connection with the light source unit 12 side is pulled out from the lighting power output section of the power supply unit 21 . The power supply unit 21 inputs an external power source, a dimming signal, etc., converts the external power source into a predetermined lighting power source based on the dimming signal, and outputs the lighting power source. Two terminal blocks 22 are used, for example, one for power supply and one for signal, and are arranged near the wiring hole 19 on the lower surface of the top surface portion 15 . The terminal block 22 and the power input section and signal input section of the power supply unit 21 are electrically connected by internal wiring. The terminal block 22 is connected to a power line or a signal line for supplying an external power source drawn from the wiring hole 19 when the device main body 11 is installed.

The light source unit 12 also includes a base plate 25, a light emitting module 26 attached to the bottom surface of the base plate 25, and a translucent cover 27 attached to the base plate 25 to cover the light emitting module 26. As shown in FIG.

The base plate 25 is integrally formed, for example, by pressing one metal plate. The base plate 25 has a rectangular plate portion 29 and a fitting frame portion 30 bent upward from the periphery of the plate portion 29 . The fitting frame portion 30 can be fitted around the fitting protrusion 17 of the device body 11 . A plurality of grooves 31 are formed in the peripheral portion of the plate portion 29 . A crimping piece 32 for crimping the translucent cover 27 to the fitting frame portion 30 is provided at the edge of each groove portion 31 .

The light-emitting module 26 includes a rectangular substrate 33 and a plurality of light-emitting elements (semiconductor light-emitting elements) 34 (see FIG. 16) mounted on the surface side of the substrate 33 . The back side of the substrate 33 is mounted in a state of being thermally connected to the base plate 25 . A cable with a connector for power supply is connected to the light emitting module 26 . This cable with connector is pulled out from base plate 25 through groove 31 of base plate 25 or a wiring hole separately provided in base plate 25 and is connected to a cable with connector pulled out from power supply unit 21 .

The light-transmitting cover 27 has light-transmitting properties and may further have light-diffusing properties. The light-transmitting cover 27 has a rectangular lower surface portion 35 and a side surface portion 36 protruding upward from the peripheral portion of the lower surface portion 35 . The upper end side of the side surface portion 36 is fitted to the fitting frame portion 30 of the base plate 25 via a packing (not shown), and the base plate 25 and the translucent cover 27 are integrally connected by a plurality of crimping pieces 32 .

Next, as shown in FIGS. 1 and 3, the mounting device 13 has a spring device 40 mounted on the light source unit 12 side and a spring receiver 41 mounted on the fixture main body 11 side. Two sets of mounting devices 13 are used, each consisting of a spring device 40 and a spring bearing 41 . The two sets of mounting devices 13 are arranged corresponding to the positions of the two opposite sides in different directions with respect to the positions of the two opposite sides of the fixture body 11 on which the two power supply units 21 are arranged.

The spring device 40 includes a wire spring 44, a bearing member 45, and a pressing member 46. As shown in FIG.

As shown in FIGS. 3 to 6, the wire spring 44 is formed by bending a wire made of, for example, a metal spring material. Stainless steel, for example, is used as the spring material. The wire spring 44 includes an intermediate hook portion 49, a pair of arm portions 50 bent from both ends of the hook portion 49 so as to face each other substantially in parallel, and extending outward from the ends of the arm portions 50. It has a pair of shaft portions 51 that are bent at both ends.

The hook portion 49 is formed in a substantially linear shape, and a pair of arm portions 50 are bent from both ends thereof.

The pair of arm portions 50 includes an arm guide portion 50a provided on the distal side, an arm linear portion 50b provided on the proximal side, an arm connection portion 50c connecting the arm guide portion 50a and the arm linear portion 50b, and an arm An arm contact portion 50d is provided between the straight portion 50b and the arm connecting portion 50c and closer to the base end side than the arm guide portion 50a. The arm guide portion 50a is formed in a convex curved shape that protrudes upward when folded toward the inside of the light source unit 12 as shown in FIG. The arm contact portion 50d is formed by a bent portion between the arm linear portion 50b and the arm connection portion 50c.

The pair of shaft portions 51 are bent outward from opposite ends of the pair of arm portions 50 . The pair of shaft portions 51 are bent substantially at right angles to the pair of arm portions 50, for example. The pair of shaft portions 51 may be bent at an obtuse angle with respect to the pair of arm portions 50 .

Further, as shown in FIGS. 3 to 5, the bearing member 45 is integrally formed by bending a single metal plate. The bearing member 45 includes a mounting portion 54 attached to the base plate 25, a raised portion 55 raised from the mounting portion 54, and both lateral sides of the raised portion 55 bent so as to face the mounting portion 54. and a pair of bearing portions 57 provided at the ends of the pair of support portions 56 . The pair of bearing portions 57 are formed by bending the distal end portion of the support portion 56 into a tubular shape. A pair of shaft portions 51 of the wire spring 44 are inserted from the inner end sides of the pair of bearing portions 57 facing each other. A pair of shaft portions 51 of the wire spring 44 are rotatably supported by the pair of bearing portions 57 .

The axis a of the pair of bearings 57 is symmetrically inclined in the same direction with respect to the virtual central axis b connecting the opposing ends of the pair of bearings 57 . The direction in which the axis a of the pair of bearings 57 is inclined is such that the angle β is 90° or more when the reference position P0 at which the pair of arms 50 of the wire spring 44 are parallel to the upper surface of the light source unit 12 is 0°. preferably in the range of 90-120°. In this embodiment, the direction in which the axis a of the pair of bearing portions 57 is inclined is, for example, the direction in which the angle β is 120°. Moreover, the angle α at which the axis a of the pair of bearing portions 57 is inclined with respect to the virtual center axis b is preferably about 10°.

4 and 5 (a front view of the wire spring 44 and the bearing member 45 at the neutral position P3 as viewed from arrow A in FIG. 4), the wire spring 44 supported by the bearing member 45 is positioned at the virtual center It is rotatable around the axis b. Therefore, the virtual central axis b is the rotation axis around which the wire spring 44 rotates. Further, the wire spring 44 supported by the bearing member 45 is at a neutral position P3 where the pair of arm portions 50 of the wire spring 44 and the axis a of the pair of bearing portions 57 overlap when viewed from the axial direction of the virtual central axis b. , is in the most elastically deformed state so that the distance between the pair of arm portions 50 changes. That is, in the wire spring 44 itself, the pair of shaft portions 51 are bent at, for example, a right angle or an obtuse angle with respect to the pair of arm portions 50, while the pair of bearing portions 57 of the bearing member 45 bend the pair of shaft portions. By symmetrically tilting the portions 51 in the same direction by the angle α, the entire wire spring 44 is in the most elastically deformed state so that the gap between the pair of arm portions 50 is narrowed.

Therefore, the wire spring 44 repels elastic deformation at a neutral position P3 where the axis a of the pair of bearings 57 and the pair of arms 50 of the wire spring 44 overlap when viewed from the axial direction of the virtual central axis b. The rotational force is applied in one of the rotational directions, i.e., the unfolding rotational direction F1, in which the light source unit 12 is opened to the outside, and in the folding rotational direction, F2, in which the light source unit 12 is folded inward, which is the other rotational direction. occurs. That is, the angle at which the pair of shaft portions 51 of the wire spring 44 is tilted with respect to the virtual central axis b by the pair of bearing portions 57 is the largest when the pair of arm portions 50 are positioned at the neutral position P3. It becomes smaller as the portion 50 rotates from the neutral position P3 toward the unfolding rotational direction F1 or the folding rotational direction F2, and becomes the smallest at 90° to the neutral position P3. Therefore, when the pair of arm portions 50 are rotated from the neutral position P3 in the unfolding rotation direction F1 or the folding rotation direction F2 even a little, the elastic force is a repulsive force that tries to return to the original state against the elastic deformation of the wire spring 44. As a result, a rotational force is generated in the unfolding rotational direction F1 or the folding rotational direction F2. Incidentally, when the pair of shaft portions 51 of the wire spring 44 are bent at an obtuse angle with respect to the pair of arm portions 50, the elastic deformation of the wire spring 44 is increased, resulting in a stronger rotational force.

As shown in FIGS. 3 and 7, the pressing member 46 is in contact with a pair of arm portions 50 of the wire spring 44 rotating in one direction, that is, the folding rotation direction F2, so that the wire spring 44 rotates in a predetermined direction. The wire spring 44 is elastically deformed so that the gap between the pair of arm portions 50 widens until the wire spring 44 is rotated to the rotating position (pressing direction switching position P1), and the wire spring 44 exceeds the predetermined rotating position (pressing direction switching position P1). When it rotates in the folding rotation direction F2, which is one direction, the elastic force that narrows the gap between the pair of arm portions 50 presses the wire spring 44 so as to rotate in the folding rotation direction F2, which is one direction. be.

The pressing member 46 is integrally formed by bending a leaf spring. A stainless plate, for example, is used as the leaf spring. The pressing member 46 has a mounting portion 60 and a pair of pressing portions 61 that are bent from both sides of the mounting portion 60 and with which the pair of arm portions 50 of the wire spring 44 come into contact.

The mounting portion 60 has the mounting portion 54 of the bearing member 45 overlaid on the mounting portion 60 and is fixed to the base plate 25 integrally with the mounting portion 54 by screwing. That is, the pressing member 46 is installed in the light source unit 12 which is the same member as the bearing member 45 .

A pair of pressing portions 61 are formed from raised portions 62 bent inward from both sides of the mounting portion 60 so as to narrow the distance from each other, and from the upper portion of the raised portions 62 to the outside so as to widen the distance from each other. It has a guide portion 63 that is bent toward.

The pair of pressing portions 61 (guide portions 63) are kept until the pair of arm portions 50 of the wire spring 44, which rotates in one direction, the folding rotation direction F2, rotates to a predetermined rotation position (pressing direction switching position P1). The expansion guide portion 64 that guides the pair of arm portions 50 so as to widen the distance between them, and the pair of arm portions 50 of the wire spring 44 that rotates in the folding rotation direction F2, which is one direction, reach a predetermined rotation position (holding direction switching). After passing the position P1), a presser guide portion 65 is provided to guide the pair of arm portions 50 so that the distance therebetween is narrowed. Between the expanding guide portion 64 and the pressing guide portion 65, there is a switch for switching between guiding so as to widen the gap between the pair of arm portions 50 and guiding so as to narrow the interval between the pair of arm portions 50. A rib 66 is provided. The position of the switching portion 66 corresponds to a predetermined rotational position (pressing direction switching position P1) of the pair of arm portions 50 of the wire spring 44 rotating in the folding rotational direction F2, which is one direction. The width between the expanding guide portions 64 of the pair of pressing portions 61 and the width between the pressing guide portions 65 are set wider than the width between the pair of arm portions 50 .

Then, when the wire spring 44 is rotated in the folding rotation direction F2 in a state in which the pair of arm portions 50 of the wire spring 44 are in contact with the expanding guide portions 64 of the pair of pressing portions 61 of the pressing member 46, the pair of The wire spring 44 is elastically deformed so that the interval between the arm portions 50 is widened, and the pressing member 46 is elastically deformed so that the interval between the pair of pressing portions 61 is narrowed. Further, the pair of arm portions 50 of the wire spring 44 rotated in the folding rotation direction F2 passes a predetermined rotation position (pressing direction switching position P1), that is, the switching portion 66, and the pair of pressing portions of the pressing member 46 61, the pair of arm portions 50 of the wire spring 44 engages the pair of pressing portions 61 of the pressing member 46 due to the elastic force that is the repulsive force against the elastic deformation of the wire spring 44 and the pressing member 46. The wire spring 44 moves in the folding rotation direction F2 along the pressing guide portion 65, and a rotational biasing force is generated to rotate the wire spring 44 in the folding rotation direction F2.

Here, referring to FIG. 4, the movement of the wire spring 44 is summarized. The wire spring 44 is folded to the inside of the light source unit 12 with a rotational force A1 in the unfolding rotation direction F1 that opens the light source unit 12 to the outside due to the repulsive force of the elastic deformation of the wire spring 44 with the neutral position P3 as a boundary. A rotational force A2 is generated in the folding rotational direction F2. The wire spring 44 is rotated and held from the neutral position P3 to the developed independent position P4 abutting on the periphery of the base plate 25 by a rotational force A1 generated in the deployed rotational direction F1. The wire spring 44 is rotated from the neutral position P3 to the folding self-supporting position P2 where it abuts against the expansion guide 64 of the pressing member 46 by the rotational force A2 generated in the folding rotation direction F2. The rotational forces A1 and A2 in the unfolding rotation direction F1 and the folding rotation direction F2 generated in the wire spring 44 are relatively weak, and the wire spring 44 can be maintained in a self-sustaining state. is released.

Further, the wire spring 44 is guided by the repulsive force of the elastic deformation of the wire spring 44 and the repulsive force of the elastic deformation of the pressing member 46 and the inclination of the expanding guide portion 64 and the pressing guide portion 65, with the pressing direction switching position P1 as a boundary. As a result, a rotational force B1 is generated in the unfolding rotation direction F1 between the presser direction switching position P1 and the folding independent position P2, and the folding rotation direction is generated between the presser direction switching position P1 and the maximum presser position P5. A rotational force B2 is generated toward F2. The rotational force B2 in the folding rotational direction F2 generated in the wire spring 44 is relatively strong and is strong enough to support the weight of the light source unit 12 itself. It should be noted that the strengths of the rotational forces A1, A2 and the rotational forces B1, B2 have a relationship of A1, A2<B1, B2.

Further, as shown in FIGS. 3 and 8, the spring bearing 41 of the mounting device 13 is integrally formed by bending a single metal plate. The spring bearing 41 includes a mounting plate portion 70, a guide plate portion 71 bent from one side of the mounting plate portion 70, a receiving plate portion 72 bent from the guide plate portion 71, and the other side of the mounting plate portion 70. It has a cover portion 73 that is bent from the bottom. Further, the spring bearing 41 has an opening 74 and a hooking portion 75 provided in the guide plate portion 71 .

The mounting plate portion 70 is attached to the lower surface of the instrument body 11 by screwing.

The guide plate portion 71 is bent downward from the mounting plate portion 70 . The guide plate portion 71 is formed with an opening 74 through which the hook portion 49 of the wire spring 44 and the pair of arm portions 50 are inserted.

The receiving plate portion 72 obliquely protrudes from the lower end of the guide plate portion 71 toward the outside of the guide plate portion 71 .

The cover portion 73 includes a rear cover portion 76 that is bent downward from the mounting plate portion 70, and side surfaces that are bent from both sides of the rear cover portion 76 so as to be arranged below both sides of the mounting plate portion 70. It has a cover portion 77 . The lower area of the mounting plate portion 70 is surrounded by the cover portion 73 together with the guide plate portion 71 so that, for example, a cable with a connector arranged between the fixture main body 11 and the light source unit 12 does not enter. .

The opening 74 is formed continuously from the guide plate portion 71 to part of the mounting plate portion 70 . The width in the width direction of the opening 74 formed in the guide plate portion 71 is such that the lower side of the opening 74, which is the edge side of the opening 74 where the hook portion 75 is provided, is between the pair of arm portions 50 of the wire spring 44. , and is formed in a substantially trapezoidal shape so that it becomes narrower from the edge side of the opening 74 where the hook 75 is provided toward the upper side of the opening 74, which is the opposite edge side. . The width of the upper portion of the opening 74 enables the width between the pair of arm portions 50 of the wire spring 44 to be restricted in the width direction, and is formed to be approximately the same as the width between the pair of arm portions 50, for example.

The hooking portion 75 projects from the guide plate portion 71 into the opening portion 74 so that the hook portion 49 of the wire spring 44 can be hooked thereon. The hook portion 75 is provided at the center of the width direction of the opening portion 74 at the lower edge portion of the opening portion 74 , which is the edge portion of the opening portion 74 away from the mounting plate portion 70 . The hooking portion 75 is formed to have a substantially L-shaped cross section so that the tip end thereof protrudes toward the inner surface of the guide plate portion 71 .

Next, the operation of lighting device 10 will be described.

FIG. 9 shows a state in which the wire spring 44 of the light source unit 12 is at the neutral position P3.

When the pair of arm portions 50 of the wire spring 44 are slightly rotated from the neutral position P3 in the deployment rotation direction F1, the elastic force of the wire spring 44 causes the rotation force A1 in the deployment rotation direction F1 as described above. occur. Therefore, as shown in FIG. 10, the wire spring 44 rotates in the unfolding rotation direction F1, and the hook portion 49 and the tip side of the pair of arm portions 50 are unfolded so as to protrude outwardly of the light source unit 12, thus extending to the unfolding independent position P4. is held to

On the other hand, when the pair of arm portions 50 of the wire spring 44 are slightly rotated from the neutral position P3 in the folding rotation direction F2, the elastic force of the wire spring 44 causes the rotation force in the folding rotation direction F2 as described above. A2 is produced. Therefore, as shown in FIG. 11, the wire spring 44 rotates in the folding rotation direction F2, the hook portion 49 and the pair of arm portions 50 incline toward the inside of the light source unit 12, and the pair of arm portions 50 move toward the pressing member. It is held at the folding self-supporting position P2 in contact with the pair of pressing portions 61 (expanding guide portions 64) of 46. As shown in FIG.

12 shows a state in which the wire spring 44 of the light source unit 12 is in the mounting position (between the pressing direction switching position P1 and the maximum pressing position P5). The wire spring 44 is folded over the light source unit 12, and the pair of arm portions 50 come into contact with the pair of pressing portions 61 (pressing guide portions 65) of the pressing member 46. As shown in FIG. In this state, as described above, due to the elastic force of the wire spring 44 and the pressing member 46, a rotational force B2 is generated in the wire spring 44 in the folding rotational direction F2.

Next, a procedure for attaching the light source unit 12 to the fixture main body 11 installed on the installation surface will be described.

As shown in FIG. 13, the wire spring 44 on one side of the light source unit 12 is rotated to the unfolded self-supporting position P4 where the light source unit 12 protrudes outward. The wire spring 44 at the developed independent position P4 is held at the developed independent position P4 even if the light source unit 12 is tilted or rotated unless it is rotated. The wire spring 44 on the other side of the light source unit 12 may be rotated to the unfolded independent position P4 or rotated to the folded independent position P2.

One side of the light source unit 12 is directed upward, and the hook portion 49 of the wire spring 44 and the tip side of the pair of arm portions 50 arranged on one side of the light source unit 12 are connected to the opening 74 of the spring receiver 41 of the instrument main body 11. , and the hook portion 49 is hooked on the hook portion 75 . At this time, since the wire spring 44 is held at the unfolded self-supporting position P4, there is no need to manually hold the wire spring 44 in the unfolded state, and workability can be improved.

At this time, as shown in FIG. 14, the opening 74 of the spring support 41 has a lower width wider than the width between the pair of arm portions 50, so that the hook portion 49 and the tip side of the pair of arm portions 50 are attached to the instrument. It can be easily inserted into the opening 74 of the spring bearing 41 of the main body 11, and the hook portion 49 can be easily hooked on the hook portion 75, resulting in good operability.

With the hook portion 49 of the wire spring 44 hooked on the hook portion 75 of the spring receiver 41, the light source unit 12 is suspended from one side of the fixture body 11. As shown in FIG. In this one-sided suspended state, the connector-equipped cable from the power supply unit 21 and the connector-equipped cable from the light source unit are connector-connected.

As shown in FIG. 15, the other side of the light source unit 12 is moved upward, and the hook portion 49 of the wire spring 44 and the tip end side of the pair of arm portions 50 arranged on the other side of the light source unit 12 are moved to the spring support 41. As shown in FIG. , and the hook portion 49 is hooked on the hook portion 75 . At this time as well, due to the shape of the opening 74 of the spring receiver 41, it is easy to insert the hook portion 49 and the distal ends of the pair of arm portions 50 into the opening 74 of the spring receiver 41 of the instrument body 11, and the hook portion 49 is hooked. It is easy to hook on the part 75 and has good operability. Further, when the hook portion 49 of the wire spring 44 is guided to the opening portion 74 of the spring receiver 41, the hook portion 49 is guided to the opening portion 74 of the spring receiver 41 by rotating the wire spring 44 to the folding independent position P2. Easy to enter and works well.

When the other side of the light source unit 12 is moved upward, the wire spring 44 on one side of the light source unit 12 exceeds the neutral position P3, and a rotational force A2 is generated in the folding rotation direction F2. Therefore, the rotational force A2 of this wire spring 44 acts to shift one side of the light source unit 12 to the proper position with respect to the fixture body 11, and the wire spring 44 on the other side of the light source unit 12 is moved to the spring support 41. Easy to put on.

Then, by hooking the hook portion 49 of the wire spring 44 on the other side of the light source unit 12 to the hook portion 75 of the spring receiver 41, the light source unit 12 is suspended from both sides of the apparatus main body 11. As shown in FIG. In this state, the wire spring 44 on one side of the light source unit 12 and the wire spring 44 on the other side are balanced, and the light source unit 12 is automatically positioned in the center parallel to the fixture body 11 . At this time, the wire spring 44 on one side of the light source unit 12 and the wire spring 44 on the other side generate a rotational force A2 in the direction in which they are caught by the spring receiver 41, respectively. Since the wire spring 44 does not come off the spring receiver 41 unless the wire spring 44 is removed from the hooking portion 75 of the spring receiver 41, the light source unit 12 does not fall off accidentally.

After that, the light source unit 12 is pushed up and attached to the fixture main body 11 . At this time, one side and the other side of the light source unit 12 may be pushed up in parallel to attach the light source unit 11 to the fixture body 11, or one side or the other side of the light source unit 12 may be pushed up one by one to attach the fixture. It may be attached to the main body 11 .

FIG. 16 shows a state in which one side of the light source unit 12 is pushed up by pushing up the other side of the light source unit 12 . 16 to 19, the operation when one side of the light source unit 12 is pushed up will be described.

As shown in FIG. 16, the hook portion 49 of the wire spring 44 arranged on one side of the light source unit 12 is hooked on the hook portion 75 of the spring receiver 41, and the wire spring 44 connects the one side of the light source unit 12 to the fixture main body. It is in a state of being suspended at 11. At this time, the pair of arm portions 50 of the wire spring 44 are not in contact with the pair of pressing portions 61 (expanding guide portions 64) of the pressing member 46. As shown in FIG.

As one side of the light source unit 12 is pushed up, the wire spring 44 rotates in the folding rotation direction F2 due to the rotational force A2 of the wire spring 44 . While pushing up one side of the light source unit 12, the pair of arm portions 50 of the wire spring 44 come into contact with the pair of pressing portions 61 (expanding guide portions 64) of the pressing member 46, and the wire spring 44 folds and rotates. The rotation in the direction F2 is once stopped at the folding self-supporting position P2, after which the wire spring 44 is pushed up together with one side of the light source unit 12. As shown in FIG.

As shown in FIG. 17, the arm guide portions 50a of the pair of arm portions 50 of the wire spring 44 pushed up together with one side of the light source unit 12 come into contact with the lower surface of the mounting plate portion 70 of the spring support 41, and the arm guide portions 50a rise is regulated. Therefore, when one side of the light source unit 12 is further pushed up, the wire spring 44 is forcibly rotated in the folding rotation direction F2. As a result, the convex arc-shaped arm guide portion 50a is inserted into the opening 74 of the spring receiver 41 while sliding on the lower surface of the mounting plate portion 70 of the spring receiver 41 . As described above, the wire spring 44 rotates in the folding rotation direction F2 and moves toward the spring bearing 41 side, so that the arm abutting portions 50d of the pair of arm portions 50 move above the receiving plate portion 72 of the spring bearing 41. move to the area.

At this time, as shown in FIG. 18, the pair of arms 50 move to the narrow region on the upper side of the opening 74, and the widthwise position of the pair of arms 50 is restricted by both side edges of the opening 74. . As a result, the position of the light source unit 12 to be pushed up with respect to the fixture main body 11 is positioned via the wire spring 44, and the light source unit 12 can be correctly combined with the fixture main body 11 and attached.

Further, while the pair of arm portions 50 of the wire spring 44 are in contact with the expanding guide portions 64 of the pair of pressing portions 61 of the pressing member 46, one side of the light source unit 12 is further pushed up, and the wire spring 44 is folded and rotated. As it rotates in the direction F2, the wire spring 44 is elastically deformed so that the gap between the pair of arm portions 50 widens, and the holding member 46 is elastically deformed so that the gap between the pair of holding portions 61 is narrowed.

When one side of the light source unit 12 is further pushed up, the pair of arm portions 50 of the wire spring 44 rotating in the folding rotation direction F2 reaches a predetermined rotation position (pressing direction switching position P1), that is, a switching portion. 66, it contacts the pressing guide portions 65 of the pair of pressing portions 61 of the pressing member 46. As shown in FIG. As a result, the pair of arm portions 50 of the wire spring 44 move along the pressing guide portions 65 of the pair of pressing portions 61 of the pressing member 46 due to the elastic force that is the repulsive force against the elastic deformation of the wire spring 44 and the pressing member 46. A rotational force B2 that rotates in the folding rotation direction F2 is generated in the wire spring 44 so that the wire spring 44 rotates in the folding rotation direction F2.

Therefore, as shown in FIG. 19, the wire spring 44 rotates in the folding rotation direction F2 due to the rotational biasing force acting on the wire spring 44, and has already moved to the area above the receiving plate portion 72 of the spring support 41. The arm abutting portions 50d of the pair of arm portions 50 abut on the upper surface side of the receiving plate portion 72 of the spring support 41, and one side of the light source unit 12 moves with the contact point between the arm abutting portions 50d and the receiving plate portion 72 as a fulcrum. It is pulled upward toward the instrument body 11 . As a result, one side of the light source unit 12 is attached to the fixture main body 11, and the fixture main body 11 and the light source unit 12 are held in the mounted state.

It should be noted that the operation when the other side of the light source unit 12 is pushed up is the same as the operation when the one side of the light source unit 12 is pushed up.

Further, the light source unit 12 can be removed from the fixture main body 11 by performing an operation opposite to the operation of attaching the light source unit 12 to the fixture main body 11 .

At the time of this removal, with the light source unit 12 pulled down from the fixture body 11, the wire spring 44 on one side and the wire spring 44 on the other side of the light source unit 12 are caught by the spring receivers 41 and stopped. At this time, the wire spring 44 on one side of the light source unit 12 and the wire spring 44 on the other side generate a rotational force A2 in the direction in which they are caught by the spring receiver 41, respectively. Since the wire spring 44 does not come off from the spring receiver 41 unless the wire spring 44 is removed from the hook portion 75 of the spring receiver 41, it is possible to prevent the light source unit 12 from accidentally falling off.

Furthermore, when removing, for example, the wire spring 44 on the other side is removed from the spring holder 41, and when the light source unit 12 is suspended by the wire spring 44 on one side as shown in FIG. Since the rotational force A1 is generated in F1 and the unfolded state is maintained, for example, the hook portion 49 of the wire spring 44 can be removed from the spring receiver 41 by pushing up the light source unit 12, resulting in good workability.

Thus, in the spring device 40 of the present embodiment, the axial centers a of the pair of bearing portions 57 of the bearing member 46 are aligned in the same direction with respect to the virtual central axis b connecting the opposing ends of the pair of bearing portions 57. symmetrically, elastic deformation occurs at a neutral position P3 where the axis a of the pair of bearings 57 and the pair of arms 50 of the wire spring 44 overlap when viewed from the axial direction of the virtual central axis b. can generate rotational force in one and the other direction of rotation respectively by the repulsive force of the spring device 40, which has a simple configuration and is easy to use.

That is, the wire spring 44 supported by the bearing member 45 is at a neutral position P3 where the pair of arm portions 50 of the wire spring 44 and the axis a of the pair of bearing portions 57 overlap when viewed from the axial direction of the virtual center axis b. , is in the most elastically deformed state so that the distance between the pair of arm portions 50 changes. Furthermore, the angle at which the pair of shaft portions 51 of the wire spring 44 is tilted with respect to the virtual central axis b by the pair of bearing portions 57 is the largest when the pair of arm portions 50 are positioned at the neutral position P3. It becomes smaller as the portion 50 rotates from the neutral position P3 toward one or the other of the rotational directions. As a result, when the pair of arm portions 50 are rotated in one or the other direction from the neutral position P3, the elastic force, which is a repulsive force that tends to return to the elastic deformation of the wire spring 44, causes rotation. Rotational forces A1, A2 can be generated in one or the other of the directions.

By using the spring device 40 including the wire spring 44 and the bearing member 45 in the mounting structure for mounting the light source unit 12 on the fixture body 11, the lighting device 10 with good workability can be provided.

The pressing member 46 of the spring device 40 is kept in contact with the pair of arm portions 50 of the wire spring 44 rotating in one direction until the wire spring 44 rotates to a predetermined rotation position (pressing direction switching position P1). elastically deforms the wire spring 44 so that the gap between the pair of arm portions 50 widens, and when the wire spring 44 rotates in one direction beyond a predetermined rotation position (pressing direction switching position P1), the pair of arm portions 50 The wire spring 44 can be pressed so as to rotate in one direction by the elastic force that narrows the gap between them, and the spring device 40 can be provided with a simple structure and good usability.

The pressing member 46 is composed of leaf springs, and when the wire spring 44 contacts the pair of arm portions 50, the pair of pressing portions 61 is elastically deformed. It can be pressed to rotate in one direction.

The pair of pressing portions 61 guide the pair of arm portions 50 so that the gap between the pair of arm portions 50 widens until the pair of arm portions 50 of the wire spring 44 rotating in one direction rotates to a predetermined rotation position (pressing direction switching position P1). After the expansion guide portion 64 and the pair of arm portions 50 of the wire spring 44 rotating in one direction have passed a predetermined rotation position (pressing direction switching position P1), the gap between the pair of arm portions 50 is narrowed. Since the holding guide portion 65 is provided for guiding, the wire spring 44 can be held so as to be rotated in one direction.

Since the pressing member 46 that presses the wire spring 44 is arranged on the same member as the bearing member 45 that bears the wire spring 44, the positional relationship between the wire spring 44 and the pressing member 46 is constant, and the spring device 40 can operate stably. It becomes possible.

By using the spring device 40 having the pressing member 46 in the mounting structure for mounting the light source unit 12 on the fixture body 11, the lighting device 10 with good workability can be provided.

In addition, the width of the opening 74 of the spring bearing 41 in the width direction is such that the lower side of the opening 74, which is the edge side of the opening 74 where the hook 75 is provided, is the width between the pair of arm portions 50 of the wire spring 44. , and narrows from the edge side of the opening 74 where the hook 75 is provided toward the upper side of the opening 74, which is the opposite edge side, so that the wire spring 44 The operation of inserting the hook portion 49 into the opening portion 74 and hooking it on the hook portion 75 can be easily performed, and the light source unit 12 as the second member is attached to the fixture main body 11 as the first member. At this time, the pair of arm portions 50 of the wire spring 44 moves to the upper side of the opening portion 74, and by positioning the width direction positions of the pair of arm portions 50 at both side edges of the opening portion 74, the tool body 11 On the other hand, the light source unit 12 can be correctly combined and attached.

By abutting the arm abutting portion 50d of the wire spring 44 against the receiving plate portion 72 bent from the guide plate portion 71, the instrument main body 11 and the light source unit 12 can be held in the attached state.

Furthermore, the spring device 12 combined with the spring receiver 41 is provided with the pressing member 46 described above, so that the pair of arm portions 50 of the wire spring 44 are opened corresponding to the operation of attaching the light source unit 12 to the fixture body 11. By moving to the upper side of the portion 74 and positioning the positions of the pair of arm portions 50 in the width direction at both side edges of the opening portion 74, the light source unit 12 can be correctly assembled and attached to the fixture main body 11. By bringing the arm contact portion 50d of the wire spring 44 into contact with the receiving plate portion 72 bent from the guide plate portion 71, the fixture main body 11 and the light source unit 12 can be held in the attached state.

Further, in the lighting device 10, the outer shape of the light source unit 12 is larger than the outer shape of the fixture body 11. For example, when installed on the ceiling, the fixture body 11 is hidden, and only the translucent cover 27 through which the light from the light source unit 12 is emitted is provided. It looks good and has good design.

The spring device 40 and the spring receiver 41 are arranged inside the fixture body 11 and the light source unit 12, and when the light source unit 12 is attached to the fixture body 11, the wire spring 44 of the spring device 40 is folded inside the light source unit 12. Thus, such a lighting device 10 can be realized.

The device main body 11 is provided with a mounting hole 18 and a wiring hole 19, and two power supply units 21 and a terminal block 22 are mounted. can be compactly configured, and the spring device 40 and the spring receiver 41 can be arranged in the limited space of the instrument body 11.

The pair of shaft portions 51 of the wire spring 44 may be bent toward the inside of the pair of arm portions 50. As shown in FIG.

Further, in the present embodiment, the axial center a of the pair of bearing portions 57 of the bearing member 45 is such that the tip sides of the pair of shaft portions 51 of the wire spring 44 approach the pair of arm portions 50 at the neutral position P3 of the wire spring 44. However, conversely, the tip sides of the pair of shaft portions 51 of the wire spring 44 may be inclined in the direction away from the pair of arm portions 50 . In this case, at the neutral position P3 of the wire spring 44, the entire wire spring 44 is elastically deformed so as to widen the distance between the pair of arm portions 50, so that the same effects as those of the above-described embodiment can be obtained.

Alternatively, the spring device 40 may be attached to the fixture main body 11 and the spring receiver 41 may be attached to the light source unit 12 .

In addition to the lighting device 10, the spring device 40 and the mounting device 13 can also be applied to a mounting structure for detachably mounting the first member and the second member to each other.

While several embodiments of the invention have been described, these embodiments have been presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and modifications can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the scope of the invention described in the claims and equivalents thereof.

10 lighting equipment
11 Instrument body
12 Light source unit
40 spring device
41 Spring support
44 wire spring
45 Bearing member
46 Holding member
49 Hook
50 Arm
51 Shaft
60 Mounting part
61 Presser foot
64 Expansion guide
65 Presser foot guide

Claims (4)

A wire spring having a hook portion, a pair of arm portions bent so as to face each other from both ends of the hook portion, and a pair of shaft portions bent from the ends of these arm portions;
a bearing member that rotatably bears the pair of shaft portions of the wire spring;
The pair of arm portions of the wire spring rotating in one direction come into contact with each other, and the wire spring is elastically deformed so that the gap between the pair of arm portions increases until the wire spring rotates to a predetermined rotational position. and a pressing member that presses the wire spring so as to rotate in the one direction by an elastic force that narrows the gap between the pair of arms when the wire spring rotates in the one direction beyond a predetermined rotation position. When;
Equipped with death,
The holding member is installed on the same member as the bearing member
A spring device characterized by: 4. The pressing member is composed of a leaf spring, and has a mounting portion and a pair of pressing portions that are bent from both sides of the mounting portion and are in contact with the pair of arm portions of the wire spring. 2. A spring device according to claim 1. The pair of pressing portions of the pressing member are expanded to guide the pair of arm portions of the wire spring that rotates in one direction so that the gap between the pair of arm portions increases until the pair of arm portions rotates to a predetermined rotational position. An open guide part and a pressing guide part that guides the pair of arm parts so that the gap between the pair of arm parts of the wire spring that rotates in one direction narrows after the pair of arm parts of the wire spring that rotates in one direction exceeds a predetermined rotational position. 3. A spring device according to claim 2 . a device body;
a light source unit attached to the fixture body;
a wire spring having a hook portion, a pair of arm portions bent so as to face each other from both ends of the hook portion, and a pair of shaft portions bent from the ends of the arm portions; A bearing member that rotatably bears the pair of shafts and the pair of arm portions of the wire spring that rotates in one direction come into contact with each other until the wire spring rotates to a predetermined rotation position. The wire spring is elastically deformed so as to widen the gap between the arms, and when the wire spring rotates in the one direction beyond a predetermined rotation position, the elastic force narrows the gap between the pair of arms. a pressing member that presses the spring so as to rotate in the one direction; The bearing member and the pressing member are attached to either one of the fixture main body and the light source unit.Lubaa spring device;
a spring receiver attached to the other of the fixture main body and the light source unit and engaged with the wire spring;
A lighting device comprising:

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