JP2018006288A - Suspension tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a suspension tool which suppresses oscillation, and which suppresses breakage of a connection part between a support body and an installation side bracket.SOLUTION: A suspension tool includes: an installation side bracket fixed on a surface to be installed and having an opening on a lower surface; a support body in which an installation side end part provided in one end in the longer direction is inserted in an opening and connected to the installation side bracket; a tool mounting bracket provided on the other end of the support body; and an elastic member for supporting the support body. The support body has a spring holding part provided by protruding to an outer periphery of the installation side end part. The installation side bracket has a bottom part inside surface for supporting the elastic member. The spring holding part is located above the opening and the bottom part inside surface. The elastic member is installed between the spring holding part and the bottom part inside surface, and generates a reaction force by a load from the spring holding part.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a hanging tool, and more particularly to a connection structure between a support and a mounting portion that supports an object suspended from an installation surface.

  2. Description of the Related Art Conventionally, a hanging tool is used when installing a lighting fixture from a mounted part such as a ceiling. According to the hanging fixture for lighting equipment described in Patent Document 1, a pipe-shaped support body provided with a hooking portion at the tip is hooked on a hooking opening of a mounting bracket fixed to a ceiling surface. Has been. A cover is attached so as to cover the mounting bracket and a part of the support on the mounting bracket side, and a cushioning material is attached between the support and the cover.

  In the lighting device described in Patent Document 2, a pipe-shaped support is inserted into a cylindrical mounting bracket fixed to the ceiling surface, and a cushioning material is provided between the mounting bracket and the support. . This buffer material suppresses the vibration of the support.

Japanese Utility Model Publication No. 52-16615 JP 2014-203682 A

  According to the hanging fixture for lighting equipment described in Patent Document 1, a ring-shaped stopper formed of elastic rubber or the like is used as a buffer material, and a pipe-shaped support is passed through the stopper. A support is also passed through the cover, and a stopper is inserted into a recess in the lower surface of the cover. The cover is supported from below by the frictional force generated by the contact between the stopper and the pipe. And a cover is fixed in the state which contacted the ceiling surface with the stopper. The stopper which is such a structure and is a buffer material is for suppressing contact between the cover and the pipe, and there is a problem that the swing of the pipe which is the support body cannot be suppressed. is there.

  According to the illuminating device described in Patent Document 2, the cylindrical mounting bracket and the support fixed to the ceiling are fixed via a cushioning material, but are fixed by screws from the side of the support. . Even if the swinging of the lighting device is alleviated by the cushioning material, the support swings, which causes a problem that the screw is loosened and the support is dropped. On the other hand, when the connection between the support and the mounting bracket is strengthened, there is a problem that a load is applied to the connection portion between the support and the mounting bracket, and the connection portion is damaged.

  The present invention has been made in order to solve the above-described problems, and provides a suspension device that can suppress the swinging of the support body due to the vibration transmitted from the installation surface and suppress the breakage of the connecting portion. It is to provide.

  The hanging tool according to the present invention includes an installation-side bracket that is fixed to an installation surface and includes an opening, and an installation-side end provided at one end in a longitudinal direction is inserted into the opening, and the installation-side bracket A support body to be connected; an instrument mounting bracket connected to the other end of the support body; and an elastic member attached to the installation side end portion, wherein the support body is an outer periphery of the installation side end portion. The installation side bracket has a bottom inner surface that supports the elastic member, and the spring holding portion includes the opening and the bottom. Provided on the side where the surface to be installed is located with respect to the inner side surface, the elastic member is installed between the spring holding portion and the inner side surface of the bottom portion, and generates a reaction force due to a load from the spring holding portion.

  According to the hanging tool according to the present invention, the elastic member is disposed between the support and the installation side bracket, and the swinging due to the vibration transmitted from the installation surface can be suppressed and restored to a predetermined position. . As a result, damage to the connecting portion between the support and the installation side bracket can be suppressed.

It is the perspective view seen from the lighting fixture side of the illuminating device which concerns on Embodiment 1 of this invention. It is the perspective view seen from the to-be-mounted surface side of the illuminating device which concerns on Embodiment 1 of this invention. It is a perspective view of the hanging tool of FIG. It is a disassembled perspective view of the hanging tool of FIG. It is sectional drawing of the hanging tool of FIG. It is a perspective view of the spring part as a modification applicable to the hanging tool which concerns on Embodiment 1 of this invention. It is a perspective view of the spring part as a modification applicable to the hanging tool which concerns on Embodiment 1 of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to the embodiments described below. Moreover, what attached | subjected the same code | symbol in each figure is the same, or is equivalent to this, and this is common in the whole text of a specification. Further, in the embodiment, “upper” means a direction in which the installation surface 80 is located with respect to the hanging tool 1, and “lower” means a side where the hanging tool 1 is located with respect to the installation surface 80. To do. In other words, “lower” means the side on which the lighting fixture or the like of the hanger 1 is attached.

Embodiment 1 FIG.
Hereinafter, embodiments of the hanging tool of the present invention will be described with reference to the drawings. In Embodiment 1, as an example, a hanging tool that is attached to an installation surface such as a ceiling and supports an emergency lighting fixture will be described.

(Lighting device 100)
FIG. 1 is a perspective view of the lighting apparatus 100 according to Embodiment 1 of the present invention as viewed from the lighting fixture 90 side. FIG. 2 is a perspective view of illumination device 100 according to Embodiment 1 of the present invention as viewed from the installation surface 80 side. The lighting device 100 includes a lighting fixture 90 and a hanging tool 1. An upper end portion of the hanging tool 1 is fixed to an installation surface 80 such as a ceiling surface, and a lighting fixture 90 is attached to a lower end portion of the hanging tool 1. By being configured in this way, the lighting fixture 90 is installed at a position away from the ceiling surface by a predetermined distance downward.

  As shown in FIG. 1, the hanging tool 1 includes a support body 10, an installation side bracket 20, and an instrument mounting bracket 60. The installation side bracket 20 is fixed to an installation surface 80 such as a ceiling surface. One end of the support 10 in the longitudinal direction is connected to the installation side bracket 20. The support 10 extends downward from the installation side bracket 20, and an instrument mounting bracket 60 is connected to the lower end of the support 10. The lighting fixture 90 is fixed to the fixture mounting bracket 60.

  FIG. 3 is a perspective view of the hanging tool 1 of FIG. FIG. 4 is an exploded perspective view of the hanging tool 1 of FIG. FIG. 5 is a cross-sectional view of the hanging tool 1 of FIG. A spring portion 30, a spring holding portion 40, and a nut 50 are arranged inside the installation side bracket 20 on the installation surface 80 side of the hanging tool 1.

  The installation side bracket 20 is provided with an opening 25 into which the installation side end 13 of the support 10 is inserted at the center. That is, the opening 25 is opened in the lower surface of the installation side bracket 20 fixed to the installation surface 80, and the installation side end 13 of the support 10 is inserted into the opening 25 from below the installation side bracket 20. The The support body 10 is inserted until the installation side flange portion 11 protruding to the outer periphery thereof contacts the bottom outer surface 23 b of the installation side bracket 20 around the opening 25. In the first embodiment, a washer 72 is sandwiched between the installation side flange portion 11 and the bottom outer surface 23b around the opening 25. In addition, the part from the installation side flange part 11 of the support body 10 to the front-end | tip 14 in the upper side of FIG.

  The spring part 30 is arranged so as to surround the outer periphery of the inserted installation side end part 13, and the spring holding part 40 is arranged on the upper part of the spring part 30. Above the spring holding portion 40, a nut 50 is fixed to the installation side end portion 13 of the support 10. Two nuts 50 are arranged at the installation side end 13, screwed into the screw part 18 of the installation side end 13, and fixed by, for example, a double nut. In the first embodiment, two nuts 50 are arranged and fixed. However, the number is not limited to this, and other means may be used as the fixing method. The lower end surface 31 of the spring part 30 is supported by the bottom inner side surface 23 a of the installation side bracket 20. The upper end surface 32 of the spring part 30 supports the spring holding part 40 from below. The spring holding portion 40 is regulated so as not to move upward because there is a nut 50 fixed upward. Since the nut 50 can move the screw portion 18 provided on the distal end side of the installation side end portion 13 up and down, the position of the nut 50 can be moved up and down according to the dimensions of the spring portion 30.

  The front end 14 of the support 10 has a bush 70 inserted inside the support 10 which is a cylindrical body. The bush 70 covers the tip 14 and is a cylinder, and communicates with the cylinder of the support 10.

  Next, the configuration of the lower end of the hanging tool 1 will be described. The instrument mounting side end 15 on the lower side of the support 10 is connected to the instrument mounting bracket 60. The instrument mounting bracket 60 is provided with an opening 65 for inserting the instrument mounting side end 15 of the support 10 at the center. The instrument mounting side end 15 of the support 10 is inserted into the opening 25 from above the instrument mounting bracket 60. The appliance attachment side flange portion 16 protruding from the outer periphery of the support 10 is inserted until it abuts on the appliance attachment bracket outer surface 64 around the opening 65. In addition, the part from the instrument attachment side flange part 16 of the support body 10 to the front-end | tip 17 in the lower side of FIG.

  A nut 50 is disposed on the instrument mounting side end 15 inserted inside the instrument mounting bracket 60. Two nuts 50 are arranged at the instrument attachment side end 15, screwed into the screw portion 19 of the instrument attachment side end 15, and fixed by, for example, a double nut. In the first embodiment, two nuts 50 are arranged and fixed. However, the number is not limited to this, and other means may be used as the fixing method.

  The inner surface 63 of the instrument mounting bracket 60 and the nut 50 are in contact with each other, and the instrument mounting bracket 60 is sandwiched between the nut 50 and the instrument mounting side flange portion 16 and connected to the support 10. A bush 70 is inserted into the distal end 17 on the instrument mounting side of the support 10 inside the instrument mounting bracket 60. The bush 70 covers the tip 17 of the support 10 and is a cylinder, and communicates with the cylinder of the support 10.

  As shown in FIG. 1 and FIG. 2, a lighting fixture 90 is attached to the fixture mounting flange 61 of the fixture mounting bracket 60. The luminaire 90 is fixed to the fixture mounting hook 61 with a screw or the like passing through the fixture mounting hook 61 and suspended.

(Support 10)
The support body 10 has a cylindrical shape with a hollow inside, and an installation side flange portion 11 serving as a receiving portion of the installation side bracket 20 is provided at the installation side end portion 13 on the side attached to the installation surface 80. ing. An appliance attachment side flange portion 16 serving as a receiving portion of the appliance attachment bracket 60 is provided at the appliance attachment side end portion 15 on the side where the lighting fixture 90 is attached. Further, the installation side end 13 and the appliance attachment side end 15 are respectively provided with screw portions 18 and 19 for screwing the nut 50. The screw portion 18 of the installation side end 13 is provided in a predetermined region from the installation side tip. Under the nut 50 fixed to the screw portion 18 of the installation side end portion 13, a disc-shaped spring holding portion 40 having a hole in the center portion is disposed through the installation side end portion 13. The Further, the spring portion 30 is disposed under the spring holding portion 40. The spring portion 30 is, for example, a coil spring, and the installation side end portion 13 is passed through the inside of the coil shape. That is, the spring part 30 is positioned between the spring holding part 40 and the bottom inner side surface 23 a of the installation side bracket 20. The installation side end 13 of the support body 10 is not provided with a screw portion 18 at a portion through which the spring portion 30 is passed, and the screw portion 18 is within a range necessary for adjusting the compression amount of the spring portion 30. Is provided. The spring holding portion 40 is disposed at a position where the spring portion 30 can be compressed in order to bias the support body 10 described later.

  Further, the installation side end portion 13 of the support 10 has an end shape from the installation side flange portion 11 to the tip end 14, and a cross section perpendicular to the longitudinal direction of the support 10 has a D shape. This D-shape is a shape in which a part of the circular shape is formed in a linear shape. The section perpendicular to the longitudinal direction of the support 10 in the part from the instrument mounting side flange portion 16 to the tip end 17 of the instrument mounting side end 15 may also be formed in this D shape. The support 10 has a D-shaped cross section perpendicular to the longitudinal direction, whereby the position of the support 10 with respect to the installation side bracket 20 or the instrument mounting bracket 60 is determined and rotates horizontally around the longitudinal axis of the support 10. There is nothing. However, the cross-sectional shape perpendicular to the longitudinal direction of the support 10 at the installation side end portion 13 and the opening 25 are not limited to the D shape, and may be other shapes as long as they are fitted so that they cannot be rotated relative to each other. May be. The support 10 is formed in a pipe shape, and wiring (not shown) drawn from the installation surface 80 is inserted into the internal space of the support 10 in order to receive power supply from a commercial power source. By being configured so that the installation side bracket 20 or the instrument mounting bracket 60 does not rotate with respect to the support 10, there is an effect that the internal wiring is not twisted and the wiring is not burdened.

(Installation side bracket 20)
The installation bracket 20 has an opening 25 at the center of the bottom of the bottomed cylindrical shape. The opening 25 is formed in a D shape, and the installation side end 13 of the support 10 is inserted and positioned so as not to rotate. The opening 25 is formed in a size that provides a clearance with respect to the outer shape of the installation side end 13 of the support 10. Moreover, the installation side bracket 20 is formed with an installation collar portion 21 projecting outward from an open end portion of the bottomed cylindrical shape. A plurality of holes are formed in the installation collar portion 21 and are fixed to the installation surface 80 with, for example, screws.

(Equipment mounting bracket 60)
The instrument mounting bracket 60 is provided with an opening 65 at the center of the bottom of the bottomed cylindrical shape. The opening 65 is formed in a D shape, and the instrument mounting side end 15 of the support 10 is inserted and positioned so as not to rotate. The opening 65 is formed in such a size that a clearance is provided with respect to the outer shape of the instrument mounting side end 15 of the support 10. In addition, the instrument mounting bracket 60 is formed with an instrument mounting flange 61 projecting outward in the open end of the bottomed cylindrical shape. A plurality of holes are formed in the fixture mounting flange 61, and the lighting fixture 90 is fixed by, for example, screws.

  In addition, it is also possible to use a common component for the installation side bracket 20 and the instrument mounting bracket 60 in Embodiment 1 by making the opening 25 into which the support body 10 is inserted into the same shape. By making the installation side bracket 20 and the appliance mounting bracket 60 common, it is possible to reduce the types of parts, improve productivity, and reduce manufacturing costs.

(Spring part 30)
In the first embodiment, the spring portion 30 is a coil spring formed in a columnar shape, for example, and the installation side end portion 13 of the support 10 is inserted inside. The spring portion 30 corresponds to the “elastic member” of the present invention. The spring part 30 is not limited to a coil spring but may be a member having elasticity. Moreover, it is not restricted to a cylindrical coil spring, A trapezoid spring may be used. The natural length of the spring portion 30 is longer than the distance from the spring holding portion 40 to the bottom inner side surface 23a of the installation side bracket 20.

  The elastic force of the spring portion 30 is formed so as to absorb the load A of the support 10 and the lighting fixture 90 to be attached and the load B due to vibration of the support 10 and the lighting fixture 90 to be attached. That is, the spring portion 30 has an elastic force that can be elastically deformed even when a load B caused by vibration is applied in a state where a normal load A is applied. For example, in the spring portion 30, the load load A is set to 80N and the maximum allowable load is set to 140N. That is, the spring part 30 may form the maximum allowable load in a size that is 1.5 to 2.0 times the load A or more.

  The spring portion 30 may be not only the coil spring described above but also an elastic member of another form. The spring portion 30 corresponds to the “elastic member” of the present invention.

  FIG. 6 is a perspective view of a spring portion 30a as a modification that can be applied to the hanger 1 according to Embodiment 1 of the present invention. The spring part 30 may be a spring part 30a formed in a shape such that the installation surface side spreads as shown in FIG. By adopting such a shape, the length of the spring portion 30a that can be compressed from the natural length can be made larger than that of the spring portion 30 that is a coil spring formed in a cylindrical shape. That is, since the spring portion 30a is a trapezoidal spring, it is easily elastically deformed, and when vibration is generated in the hanging tool 1, the spring portion 30a can absorb the vibration and suppress the load on the bottom portion 23.

  Further, since the spring portion 30a is a trapezoidal spring that is wound so that the diameter of the winding wound in a coil shape gradually increases (decreases), a winding with a small diameter is wound with a small diameter when compressed. Elastically deforms so that it enters the inside. Therefore, the spring part 30a can be arranged in a narrower space than the spring part 30 that is formed in a columnar shape and deforms so as to overlap when pressed, and the suspension 1 can be downsized.

  FIG. 7 is a perspective view of a spring portion 30b as a modification that can be applied to the hanger 1 according to Embodiment 1 of the present invention. The elastic member applied to the hanger 1 may be a spring portion 30b formed of a leaf spring as shown in FIG. The spring part 30b is bent diagonally downward at both ends, leaving a flat plate part 37 at the center of one sheet metal. The inclined surface portion 38 extending obliquely downward from the flat plate portion 37 is bent at the tip to form an abutting portion 36. The abutting portion 36 abuts on the bottom inner side surface 23 a of the installation side bracket 20. In the flat plate portion 37 of the spring portion 30b, the support body 10 is passed through the through hole 35 formed in the center portion, and the spring holding portion 40 is in contact with the flat plate portion 37 from above. That is, the spring portion 30 b is sandwiched between the spring holding portion 40 and the bottom inner side surface 23 a of the installation side bracket 20. The spring portion 30b is assembled in a state compressed more than the natural length, and the elastic force can be freely set by the shape, length, and plate thickness of the flat plate portion 37 and the slope portion 38. By forming the spring portion 30b with a leaf spring, it is possible to produce the wire more easily than when it is formed in a coil shape.

(Spring holder 40)
The spring holding part 40 has a disk shape with a hole in the center. The spring holding portion 40 has a nut 50 fixed on the upper side and is arranged so as not to move upward. The spring part 30 is disposed below the spring holding part 40, and the spring part 30 is compressed and biased. Therefore, the spring holding part 40 is hold | maintained in the state pressed against the nut 50 by the spring part 30 from the lower side. In the first embodiment, the spring holding portion 40 has a disk shape with a hole and is prevented from moving upward by the nut 50, but may be other as long as the spring portion 30 can be held in a biased state. It may be fixed to the support 10 by this method. For example, a screw may be cut on the inner diameter side of the hole of the spring holding portion 40 and may be screwed to the screw portion 18 and fixed to the support body 10.

  Next, the function of the spring part 30 installed in the connection part of the support body 10 and the installation side bracket 20 is demonstrated using FIG. In the installation side bracket 20, the installation side flange portion 11 abuts on the bottom outer surface 23 b of the bottom portion 23 of the bottomed cylindrical portion provided with the opening 25, and the spring portion 30 abuts on the bottom inner side surface 23 a. The bottom portion 23 of the installation side bracket 20 is sandwiched between the installation side flange portion 11 and the spring portion 30 and connected to the support 10. At this time, in the spring portion 30, the bottom inner side surface 23 a of the installation side bracket 20 is in contact with the lower end surface 31, and the spring holding portion 40 is in contact with the upper end surface 32. The spring holding portion 40 compresses the spring portion 30 by tightening the nut 50 by the amount of the screw portion 18 of the support 10.

  When the vibration is generated on the installation surface 80, the suspension 1 transmits the vibration from the installation side bracket 20 to the support body 10. At this time, vibration is transmitted to the support 10 through the spring portion 30. Therefore, the vibration is absorbed by the elastic deformation of the spring portion 30. Then, the vibration force transmitted to the support 10 is limited to the elastic force of the spring portion 30 and the swing of the support 10 is suppressed. Further, even if vibration is transmitted to the support 10 and the support 10 swings, or deviates or tilts from the initial position supported by the installation side bracket 20, the support 10 does not have the spring portion 30. It is returned to the initial position by the restoring force.

  Further, the installation side bracket 20 holds the support 10 through the spring portion 30. Therefore, the spring portion 30 absorbs the load caused by vibration, and the spring portion 30 is in contact with the bottom inner side surface 23a of the installation-side bracket 20 constituted by a plane, so that the support 10 and the installation-side bracket 20 are damaged. Can be suppressed.

  In general, the hanging tool 1 is inclined so that the central axis of the support 10 passes through the center of gravity of the lighting fixture 90 when the center axis holding the support 10 and the center of gravity of the lighting fixture 90 to be attached are different. End up. However, in the hanging tool 1 of the present embodiment, even if the center of gravity of the lighting fixture 90 to be attached is not on the central axis of the hanging tool 1, the load of the spring portion 30 (support 10 and attached). The restoring force with respect to the lighting fixture or the like is a pulling force, and the tilt of the support 10 can be suppressed.

  Moreover, although the hanging tool 1 of this Embodiment demonstrated regarding the shape which hold | maintains an emergency lighting fixture, what is attached to the hanging fixture 1 is not only an emergency lighting lighting fixture but a spotlight-shaped thing, It may be a long member, a guide light, or a rail member for mounting a lighting fixture. Furthermore, the present invention is not limited to a lighting fixture, and can be used to suspend a ceiling fan such as a ceiling fan or a mirror ball that is supplied with electric power and is rotated and supplied with electric power.

(Effect of Embodiment 1)
(1) According to the hanging tool of the first embodiment, the installation side bracket 20 that is fixed to the installation surface 80 and includes the opening 25 and the installation side end 13 provided at one end in the longitudinal direction are opened. The support 10 inserted into the part 25 and connected to the installation side bracket 20, the instrument mounting bracket 60 connected to the other end of the support 10, and the spring parts 30, 30 a and 30 b attached to the installation side end 13. And comprising. The support 10 has a spring holding portion 40 provided to protrude from the outer periphery of the installation side end portion 13. The installation bracket 20 has a bottom inner side surface 23a provided with an opening 25 and supporting the spring portions 30, 30a, 30b. The spring holding portion 40 is provided on the side where the mounting surface 80 is located with respect to the opening 25 and the bottom inner side surface 23a. The spring portions 30, 30 a, and 30 b are installed between the spring holding portion 40 and the bottom inner side surface 23 a and generate a reaction force due to a load from the spring holding portion 40. The spring portions 30, 30a, 30b correspond to the “elastic member” of the present invention.
With this configuration, when the vibration is generated on the installation surface 80, the suspension 1 transmits the vibration from the installation side bracket 20 to the support body 10. At this time, vibration is transmitted to the support 10 via the spring portions 30, 30a, 30b. Therefore, the vibration is absorbed by elastic deformation of the spring portions 30, 30a, 30b. And the force of the vibration transmitted to the support body 10 is restrict | limited to the elastic force of the spring parts 30, 30a, 30b, and the shaking of the support body 10 is suppressed.

(2) According to the hanging tool 1 of the first embodiment, the support 10 includes the installation-side flange portion 11 that is located closer to the instrument mounting bracket 60 than the spring holding portion 40 and protrudes to the outer peripheral surface. The installation side flange portion 11 abuts against the bottom outer surface of the installation side bracket 20 on the side where the instrument mounting bracket is located, and the distance between the spring holding portion 40 and the bottom inner side surface 23a is the spring portion. It is set shorter than the natural length of 30, 30a, 30b.
With this configuration, the spring portions 30, 30 a, and 30 b are compressed and are held in a state where the reaction force is applied to the spring holding portion 40 and the bottom inner side surface 23 a of the installation side bracket 20. When the mounted surface 80 vibrates, the vibration force transmitted to the support 10 is limited to the elastic force of the spring portions 30, 30a, 30b, and the swing of the support 10 is suppressed. Further, even if the vibration is transmitted to the support 10 and the support 10 swings, deviates from the initial position supported by the installation side bracket 20, or tilts, the support 10 has the spring portion 30. It is returned to the initial position by the restoring force.

(3) According to the hanging tool 1 of the first embodiment, the spring holding portion 40 is configured such that the fixed position is movable in the longitudinal direction of the support.
By comprising in this way, the amount which the spring parts 30, 30a, and 30b compress can be adjusted. Therefore, the elastic force applied to the spring holding part 40 and the bottom inner side surface 23a of the installation side bracket 20 can be adjusted. For example, when the elastic force is to be changed according to the weight of the lighting fixture 90 or the like, When the compression amount of the spring portions 30, 30a, 30b needs to be changed according to the specifications of 30a, 30b, it can be adjusted as appropriate.

(4) According to the hanging tool 1 of the first embodiment, the shape of the opening 25 and the cross-sectional shape perpendicular to the longitudinal direction of the support 10 at the installation side end portion 13 regulate relative rotation to each other. Mating.
By being configured in this manner, the installation side bracket 20, the support body 10, the suspended lighting fixture 90, and the like do not rotate relative to each other, so that the wiring passing through the inside of the support body 10 is twisted. In addition, since the wiring is not burdened, the hanging tool 1 having high durability and ensuring reliability can be obtained.

(5) According to the hanging tool 1 of Embodiment 1, the support body 10 is a cylinder.
By being configured in this way, the hanging tool 1 has the effects (1) to (3) described above, and allows wiring for supplying power such as the lighting fixture 90 to the inside of the support 10. it can.

(6) According to the hanging tool 1 of the first embodiment, the spring holding part 40 has a disk shape, and the installation side end part 13 penetrates through the hole opened in the center part. Includes a screw portion 18 in a predetermined region from the tip 14, and a nut 50 is fixed to the screw portion 18, and the nut 50 abuts against the spring holding portion 40 from the side where the installation surface 80 is located.
By being configured in this way, the effect (3) can be obtained without complicating the structure, and sharing with other parts is also possible. As a result, it becomes possible to constitute the hanging tool 1 while suppressing the cost.

(7) According to the hanging tool 1 of the first embodiment, the spring portion 30 is a coil spring and is disposed so as to surround the outer peripheral surface of the support 10. Alternatively, the spring portion 30 a is a trapezoidal spring and is disposed so as to surround the outer peripheral surface of the support 10. Or the spring part 30b is a leaf | plate spring, and the instrument mounting bracket 60 is arrange | positioned from the flat plate part 37 by which the through-hole 35 is opened in the center part, and the edge part which the flat plate part 37 opposes a leaf | plate spring. And a sloped portion 38 extending to the side. The flat plate portion 37 is located on the installation surface 80 side, contacts the spring holding portion 40, the end portion of the inclined surface portion 38 contacts the bottom inner side surface 23 a, and the support body 10 passes through the through hole 35. .
By comprising in this way, the hanging tool 1 can acquire the effect of said (1)-(3) with a simple structure. Moreover, the effect which suppresses the vibration which arose in the hanging tool 1 can be heightened. Furthermore, by using the trapezoidal spring as the spring portion 30a, the spring portion 30a can be disposed in a narrower space than the spring portion 30 that is a coil spring, and the hanging tool 1 can be downsized. In addition, by forming the spring portion 30b with a leaf spring, the wire can be more easily produced than when it is formed in a coil shape.

  DESCRIPTION OF SYMBOLS 1 Hanging tool, 10 Support body, 11 Installation side flange part, 13 Installation side edge part, 14 Tip, 15 Instrument attachment side end part, 16 Instrument attachment side flange part, 17 Tip, 18 Screw part, 19 Screw part, 20 Installation side bracket, 21 Installation collar, 22 End surface, 23 Bottom, 23a Bottom inner surface, 23b Bottom outer surface, 25 Opening, 30 Spring, 30a Spring, 30b Spring, 31 End, 32 End, 35 Through hole 36, abutting portion, 37 flat plate portion, 38 slope portion, 40 spring holding portion, 50 nut, 60 device mounting bracket, 61 device mounting collar, 63 inner surface, 64 device mounting bracket outer surface, 65 opening, 70 bush, 72 washer, 80 installation surface, 90 lighting fixture, 100 lighting device, A load load, B load.

Claims (9)

An installation side bracket fixed to the installation surface and having an opening;
A support body that is installed at one end in the longitudinal direction with an installation side end inserted into the opening and connected to the installation side bracket;
An instrument mounting bracket coupled to the other end of the support;
An elastic member attached to the installation side end,
The support is
A spring holding portion provided protruding from the outer periphery of the installation side end,
The installation side bracket is
The opening is provided and has a bottom inner side surface that supports the elastic member,
The spring holding part is
Provided on the side where the installation surface is located with respect to the opening and the inner surface of the bottom,
The elastic member is
A hanging tool that is installed between the spring holding part and the inner surface of the bottom part and generates a reaction force due to a load from the spring holding part. The support is
A flange portion that is located on the side where the instrument mounting bracket is disposed with respect to the spring holding portion and protrudes to the outer peripheral surface;
The flange portion is
The installation side bracket is a surface on the side where the instrument mounting bracket is located, abutting the bottom outer surface,
The distance between the spring holding portion and the bottom inner surface is
The hanging tool according to claim 1, wherein the hanging tool is set shorter than a natural length of the elastic member. The spring holding part is
The hanging tool according to claim 1 or 2, wherein a fixed position is configured to be movable in a longitudinal direction of the support body. The shape of the opening and the cross-sectional shape perpendicular to the longitudinal direction of the support at the installation side end are:
The hanging tool according to any one of claims 1 to 3, which are fitted so as to restrict relative rotation to each other. The support is
The hanging tool according to any one of claims 1 to 4, which is a cylindrical body. The spring holding part is
It is a disc shape, and the installation side end penetrates a hole opened in the center,
The installation side end is
A screw part is provided in a predetermined area from the tip, and a nut is fixed to the screw part.
The nut is
The suspension tool according to any one of claims 1 to 5, wherein the suspension tool comes into contact with the spring holding portion from a side on which the installation surface is located. The elastic member is
The suspension tool according to any one of claims 1 to 6, which is a coil spring and is disposed so as to surround an outer peripheral surface of the support. The elastic member is
The hanging tool according to any one of claims 1 to 6, which is a trapezoidal spring and is disposed so as to surround an outer peripheral surface of the support. The elastic member is
A leaf spring,
The leaf spring is
A flat plate portion having a through hole in the center, and
A slope portion extending from the opposing end of the flat plate portion to the side where the instrument mounting bracket is disposed, and
The flat plate portion is
Abutting against the spring holding part,
The end of the slope is
Abutting against the inner surface of the bottom,
In the through hole,
The hanging tool according to any one of claims 1 to 6, wherein the support body penetrates.

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