JP6355045B2 - Fall prevention device and lighting apparatus - Google Patents

Description

  The present invention relates to a fall prevention device and a lighting fixture using the fall prevention device.

  As a conventional example, a lighting device (lighting fixture) described in Patent Document 1 is illustrated. The conventional example described in Patent Document 1 is attached to a high place such as a utility pole installed on a road, a pole installed in a park, or a wall. The conventional example described in Patent Document 1 includes a security light (lamp) and an arm (mounting bracket) for mounting the lamp on a utility pole, pole, wall, or the like. The mounting bracket has a curved portion in which an intermediate portion is curved in a substantially L shape by a metal piece having a U-shaped cross section. In addition, the mounting bracket is provided with a through hole through which the mounting band passes at one end. For example, when the lighting fixture of the conventional example is attached to a utility pole, a pole, or the like, the attachment band is passed through the through hole of the attachment bracket, and is attached by being wound around the utility pole, the pole, or the like.

  By the way, the lighting fixtures installed at a high place as in the above-described conventional example usually use a fall prevention device in order to prevent a fall.

  As an example of a conventional fall prevention device, there is a bolt clip. A bolt clip is comprised with the volt | bolt provided with the hole in the axial part, a washer, a wire, and a nut.

  A method of using the bolt clip will be briefly described. The wire is passed through the hole of the bolt and wound around a utility pole or pole. Then, the wire is passed through the hole of the bolt in the opposite direction to the previous time, adjusted so that there is no gap between the wire and the utility pole, pole, etc., and then tightened and fixed with a nut. Both ends of the wire are attached to the fixture of the lighting fixture.

  Thus, even if the mounting fixture of the lighting fixture is detached from the utility pole, pole, etc., the lighting fixture can be prevented from falling by the fall prevention device (bolt clip).

JP 2012-216477 A

  By the way, in the fall prevention apparatus of the said prior art example, since it is necessary to give the process which provides a hole in a volt | bolt beforehand, cost may become high. Moreover, in the fall prevention apparatus of the said prior art example, it takes time to pass a wire through a hole, and the problem that working efficiency falls arises.

  The present invention has been made in view of the above-described reasons, and an object thereof is to reduce component costs and improve work efficiency.

  The fall prevention device of the present invention includes a fastener and a wire, and the fastener includes a base member, a pressing member, and a fastening member, and the base member has a plate-like flat plate portion having an opening. And a guide portion for positioning the wire so as not to overlap the opening on one surface of the flat plate portion, the pressing member is formed in a plate shape having an insertion hole, and the fastening member is The wire is inserted into the opening of the flat plate portion and the insertion hole of the presser member, the wire is sandwiched between the flat plate portion and the presser member, and the base member and the presser member are connected to the fastening member. It is characterized in that the members are configured to be applied with forces in a direction that attracts each other.

  The lighting fixture of the present invention includes a fixture main body and the fall prevention device, wherein one end of the wire is fixed to the fixture main body, and the other end of the wire is fixed to a structure by the fastener. And

  The fall prevention device and the lighting fixture of the present invention have an effect that the cost of parts can be reduced and the working efficiency can be improved.

It is a perspective view which shows Embodiment 1 of the fall prevention apparatus and lighting fixture which concern on this invention. It is a perspective view same as the above. FIG. 3A is a front view, FIG. 3B is a plan view, and FIG. 3C is a right side view. It is a disassembled perspective view which shows the principal part of a fall prevention apparatus same as the above. It is a perspective view which shows Embodiment 2 of the fall prevention apparatus which concerns on this invention. It is sectional drawing which shows Embodiment 3 of the fall prevention apparatus which concerns on this invention. It is a perspective view same as the above. It is a perspective view same as the above.

Hereinafter, embodiments of the fall prevention device 10 and the lighting apparatus according to the present invention will be described in detail with reference to FIGS. 1 to 8.
(Embodiment 1)
Initially, the lighting fixture of this embodiment is demonstrated with reference to FIG. The lighting fixture of this embodiment is attached to the high place of structures 100, such as a utility pole and a pole, and is used, for example as a street light or a crime prevention light.

  The lighting fixture includes a fixture body 30, a mounting member 20, and a fall prevention device 10. Furthermore, the lighting fixture includes a light source unit (not shown), a power supply unit (not shown), and the like. The instrument body 30 includes a body 301, a cover 302, and the like.

  The body 301 is formed of a resin material such as ASA (Acrylonitrile-Styrene-Acrylate resin) into a box shape with one surface opened. The body 301 includes a rectangular main portion 3011 and a side wall 3012 that falls along the thickness direction over the entire circumference of the main portion 3011. Further, a groove (not shown) in which the cover 302 can be fitted is formed in the side wall 3012. Further, a groove (not shown) that can be fitted to the attachment member 20 is formed in the side wall 3012.

  The cover 302 is formed in a semi-cylindrical shape with one surface opened by a light-transmitting resin such as a PMMA (Poly Methyl Methacrylate) resin. A pair of hooks 3021 are provided at the tip of the cover 302. Each hook 3021 is hooked rotatably on a pair of shafts (not shown) provided at the tip of the body 301. The cover 302 is attached to the body 301 so as to be rotatable between a closed position where the opening of the body 301 is closed and an open position where the opening of the body 301 is opened, with the axis of the body 301 as a fulcrum. On the periphery of the opening of the cover 302, a projecting piece (not shown) that protrudes in the direction along the thickness direction is formed over the entire periphery. The protrusion fits into the groove of the body 301 when the cover 302 is in the closed position.

  By fitting the protruding piece of the cover 302 into the fitting groove of the body 301, the body 301 and the cover 302 accommodate the light source unit, the power supply unit, a part of the mounting member 20 (a support portion described later), and the like. To constitute a housing.

  The light source unit includes, for example, a plurality of LEDs (light emitting diodes), a printed wiring board on which the LEDs are mounted, and the like. The printed wiring board is electrically connected to the power supply unit using a cable or the like.

  The power supply unit includes a converter that converts AC power from the outside into DC power. The power supply unit is configured to turn on the LED by supplying the converted direct-current power to the light source unit.

  The attachment member 20 is formed of, for example, a metal plate such as a steel plate, and includes a rectangular main plate 200 and a pair of side plates 204. Each side plate 204 is formed so as to rise along the thickness direction from both sides along the longitudinal direction of the main plate 200. The attachment member 20 includes a support portion (not shown) that supports the body 301 and an attachment portion 20A that is attached to the structure. The support portion is attached to the body 301 by screwing or the like, and is stored in the instrument body 30. The attachment portion 20 </ b> A is exposed outside the instrument main body 30 and is attached to the structure 100. As shown in FIG. 1, the mounting portion 20 </ b> A is curved so as to tilt the support portion at a certain angle (for example, 60 degrees or more). The main plate 200 of the mounting portion 20A is provided with three insertion holes 201, 202, 203 through which the screws 61, 62, 63 are inserted.

  As shown in FIG. 1, the attachment member 20 is attached to the structure 100 using an attachment bracket B1. The mounting bracket B1 is formed of a metal plate such as a steel plate and has a rectangular main plate B10 and a pair of side plates B11. The side plate B11 is formed so as to protrude in the direction along the thickness direction from the left and right end edges of the main plate B10. Each side plate B11 is provided with a slit B111 whose longitudinal direction is the vertical direction. Furthermore, the main plate B10 is provided with three female screws (not shown).

  Next, a method for attaching the lighting fixture to the structure 100 will be described.

  First, the operator winds the belt B2 around the structure 100, passes the belt B2 through the slit B111 of the mounting bracket B1, and fixes the mounting bracket B1 to the structure 100. Then, the operator superimposes the main plate B10 of the mounting bracket B1 and the main plate 200 of the mounting portion 20A of the mounting member 20, and uses screws 61, 62, 63 inserted through the insertion holes 201, 202, 203 of the mounting portion 20A. By screwing into each female screw of the mounting bracket B1, the mounting member 20 is screwed to the mounting bracket B1.

  Note that a pair of rectangular slits 205 may be provided on the side plate 204 of the mounting member 20. When attaching the lighting fixture to the structure 100 without using the mounting bracket B1, the operator winds the belt B2 around the structure 100, passes the belt B2 through the slit 205 of the mounting member 20, and the fixture main body 30 to the structure 100. To fix.

  Next, the fall prevention device 10 of the present embodiment will be described with reference to FIGS. In the following description, the vertical and horizontal directions and the front-rear direction are defined in the direction shown in FIG.

  The fall prevention device 10 includes a fastener 1 and a wire 2. The fastener 1 includes a base member 3, a pressing member 4, and a fastening member 5.

  The base member 3 includes a flat plate portion 31, a side wall portion, and a guide portion.

  The flat plate portion 31 is formed of a metal material into a rectangular plate shape with a circular opening 311 provided at the center. An internal thread is provided on the inner peripheral surface of the opening 311.

  The side wall portion has a first side wall portion 32 and a second side wall portion 33. The first side wall portion 32 is formed so as to rise upward from the front edge of the flat plate portion 31. The second side wall portion 33 is formed so as to rise upward from the rear end edge of the flat plate portion 31. The first side wall part 32 and the second side wall part 33 may be provided with side parts 321 and 331 at both left and right ends. In addition, it is preferable that the 1st side wall part 32 and the 2nd side wall part 33 are integrally formed with the flat plate part 31 by bending a metal plate.

  The guide portion has an introduction hole and a lead-out hole, and is configured to regulate the position of the wire 2 with respect to the flat plate portion 31. By allowing the wire 2 to pass through the introduction hole and the lead-out hole, a range in which the wire 2 can move on the flat plate portion 31 is limited. The introduction hole includes a first introduction hole 341 and a second introduction hole 342. The lead-out hole includes a first lead-out hole 351 and a second lead-out hole 352. The first introduction hole 341 and the second lead-out hole 352 are oval and open across the flat plate portion 31 and the first side wall portion 32. The second introduction hole 342 and the first lead-out hole 351 are oval and open across the flat plate portion 31 and the second side wall portion 33. However, the shapes of the guide portions (the first introduction hole 341, the second introduction hole 342, the first outlet hole 351, and the second outlet hole 352) are not limited to the present embodiment.

  The wire 2 is introduced into the first introduction hole 341 from the outside of the flat plate portion 31 and is led out of the flat plate portion 31 through the first lead-out hole 351. Similarly, the wire 2 is introduced from the outside of the flat plate portion 31 into the second introduction hole 342 and led out of the flat plate portion 31 through the second lead-out hole 352.

  The first introduction hole 341 and the first lead-out hole 351 are configured so that the wire 2 does not overlap the opening 311 when viewed from the thickness direction of the flat plate portion 31. When viewed from the thickness direction of the flat plate portion 31, the second introduction hole 342 and the second introduction hole 352 are not overlapped with the opening 311 and are passed from the first introduction hole 341 to the first introduction hole 351. The wire 2 and the opening 311 are arranged to face each other.

  The pressing member 4 is formed of a metal material into a disk shape having a circular insertion hole 41 at the center. Further, the diameter of the pressing member 4 is formed to be smaller than the distance from the first side wall portion 32 to the second side wall portion 33 of the base member 3. The insertion hole 41 is formed larger than the screw portion 52 of the fastening member 5 and smaller than the head portion 51, similarly to the opening 311 of the base member 3.

  The fastening member 5 is a metallic male screw having a head portion 51 and a screw portion 52. The head 51 has a cross hole 511. The screw part 52 is inserted into the opening 311 of the flat plate part 31 and the insertion hole 41 of the pressing member 4. The screw part 52 of the fastening member 5 is fastened to the female screw of the opening 311 using a Phillips screwdriver. The pressing member 4 and the fastening member 5 may be integrally formed like a bolt with a washer.

  The wire 2 may be formed of a metal material and may include a ring hook 21 at one end (see FIG. 1).

  In the fall prevention device 10 of the present embodiment, how to use the ring hook 21 for the wire 2 will be described with reference to FIGS. 1 and 4.

  As shown in FIG. 1, the operator takes out one end of the wire 2 on which the ring hook 21 is provided from the upper opening of the mounting fixture B1 of the lighting fixture through the slit B111 to the outside. The operator passes the other end of the wire 2 protruding from the upper opening of the mounting bracket B1 through the ring hook 21. In this way, one end of the wire 2 is fixed to the mounting bracket B1. The operator introduces the other end of the wire 2 into the first introduction hole 341 of the base member 3 and leads it out from the first lead-out hole 351. Then, the operator winds the wire 2 around the structure 100 for 2 to 3 turns. Further, the operator introduces the other end of the wire 2 into the second introduction hole 342 and causes the second introduction hole 352 to lead out. Next, the operator puts the pressing member 4 on the flat plate portion 31, inserts the screw portion 52 of the fastening member 5 into the insertion hole 41 and the opening 311 from above the pressing member 4, and uses a Phillips screwdriver. The fastening member 5 is fastened into the opening 311. As a result, the wire 2 is pressed and supported between the base member 3 and the pressing member 4.

  When the fall prevention device 10 is used in this way, the operator can easily tighten the wire 2.

  Moreover, in the fall prevention apparatus 10 of embodiment, the case where the ring hook 21 is not used is demonstrated with reference to FIG.2 and FIG.4.

  The operator passes one end of the wire 2 from the outside to the inside through the slit B111 of the mounting fixture B1 of the lighting fixture. The operator winds both ends of the wire 2 around the structure 100 one turn at a time. In this case, the operator winds each end in the opposite direction such that one end of the wire 2 is clockwise and the other end is counterclockwise. Then, the operator introduces one end of the wire 2 into the first introduction hole 341 of the base member 3 and leads out from the first lead-out hole 351. Further, the operator introduces the other end of the wire 2 into the second introduction hole 342 and causes the second introduction hole 352 to lead out. Next, the operator puts the pressing member 4 on the flat plate portion 31, inserts the screw portion 52 of the fastening member 5 into the insertion hole 41 and the opening 311 from above the pressing member 4, and uses a Phillips screwdriver. The fastening member 5 is fastened into the opening 311. As a result, the wire 2 is pressed and supported between the base member 3 and the pressing member 4. In this case, it is possible to fix the wire 2 without further loosening the wire 2.

  When the fall prevention device 10 is used in this way, the fastener 1 and the structure 100 are in closer contact with each other, so that the wire 2 is hardly loosened. Therefore, when the belt B2 is loosened or detached and the luminaire moves downward, the moving distance of the luminaire is reduced and safety is improved.

  By the way, when the mounting bracket B1 is not used, the fall prevention device 10 is mounted through the wire 2 to the slit 205 of the mounting member instead of the slit B111 of the mounting bracket B1.

  Thus, unlike the conventional example (bottle clip), the fastening member 5 of the present embodiment does not need to be processed in advance with a hole through which the wire 2 is passed. Furthermore, the conventional example is configured with six points of a male screw, a nut, three washers, and a wire. On the other hand, the fall prevention device 10 of the present embodiment is configured by four points: a base member 3, a pressing member 4, a fastening member 5, and a wire 2. Further, the fall prevention device 10 of the present embodiment is configured by three points including the base member 3 and the wire 2 when the pressing member 4 and the fastening member 5 are integrally formed. That is, the number of parts of the fall prevention device 10 of this embodiment is smaller than the number of parts of the conventional example. Therefore, for the above two reasons, the fall prevention device 10 of this embodiment can be expected to reduce the component cost.

  The fall prevention device 10 of this embodiment includes a fastener 1 and a wire 2. The fastener 1 includes a base member 3, a pressing member 4, and a fastening member 5. The base member 3 includes a plate-shaped flat plate portion 31 having an opening 311 and a guide portion for positioning the wire 2 so as not to overlap the opening 311 on one surface of the flat plate portion 31. The pressing member 4 is formed in a plate shape having an insertion hole 41. The fastening member 5 is inserted into the opening 311 of the flat plate portion 31 and the insertion hole 41 of the pressing member 4. The wire 2 is sandwiched between the flat plate portion 31 and the pressing member 4. The base member 3 and the presser member 4 are configured so that the fastening members 5 apply forces in a direction that attracts each other.

  Therefore, unlike the conventional example, the fall prevention device 10 according to the present embodiment does not need to process a hole through which the wire 2 is passed in the fastening member 5 in advance, and has fewer parts than the conventional example. Reduction of parts cost can be expected.

  In the fall prevention device 10 of the present embodiment, the guide part preferably includes an introduction hole and a lead-out hole. It is preferable that the wire 2 introduced from the introduction hole is passed through one surface of the flat plate portion 31 and led out from the lead-out hole.

  In the fall prevention device 10 of the present embodiment, the introduction hole preferably includes a first introduction hole 341 and a second introduction hole 342. The outlet hole preferably includes a first outlet hole 351 and a second outlet hole 352. It is preferable that the first introduction hole 341 and the first lead-out hole 351 do not overlap the opening 311 when viewed from the thickness direction of the flat plate portion 31. The second introduction hole 342 and the second lead-out hole 352 are passed through the first introduction hole 341 and the first lead-out hole 351 without overlapping the opening 311 when viewed from the thickness direction of the flat plate portion 31. It is preferable that the wire 2 and the opening 311 are opposed to each other.

  Therefore, in the fall prevention device 10 of the present embodiment, the position of the wire 2 is regulated by passing the wire 2 through the introduction holes 341 and 342 and the lead-out holes 351 and 352, so that the operator can easily perform the fastening operation. It can be carried out. Therefore, the fall prevention device 10 of the present embodiment can be expected to improve work efficiency.

  In the fall prevention device 10 of the present embodiment, the fastening member 5 is preferably a male screw, and a female screw that fits into the male screw is preferably provided in the opening 311 of the base member 3.

  Therefore, in the fall prevention device 10 of the present embodiment, since the internal thread is formed in the opening 311 of the base member 3, no member such as a nut is necessary, and the number of parts can be reduced. Therefore, the fall prevention device 10 of this embodiment can be expected to reduce the cost of components and improve the work efficiency by reducing the number of components. However, the fastening member 5 is not limited to a screw and may be a rivet or the like.

  The lighting fixture of this embodiment includes a fixture body 30 and a fall prevention device 10. One end of the wire 2 is fixed to the instrument body 30, and the other end of the wire 2 is fixed to the structure 100 by the fastener 1.

Therefore, in the lighting apparatus of this embodiment, it becomes easy to attach the wire 2 to the fastener 1 even in a work environment where the worker is working at a high place, that is, it is difficult to move freely, and improvement in work efficiency is expected. it can.
(Embodiment 2)
Hereinafter, Embodiment 2 of the fall prevention device 10 according to the present invention will be described with reference to FIG. In addition, about the structure which overlaps with Embodiment 1, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted. Further, in the following description, the vertical and horizontal directions and the front-rear direction are respectively defined in the orientation shown in FIG.

In the fastener 1 of Embodiment 1, when the operator tries to hold the first side wall part 32 and the second side wall part 33 of the base member 3 by hand, the wire 2 becomes an obstacle and the base member 3 is difficult to handle. Therefore, in the fastener 1 of the present embodiment, it is preferable that the base member 3 is provided with a protruding piece 312. The projecting pieces 312 are formed so as to fall downward from the left and right end edges of the flat plate portion 31.
The operator can hold the base member 3 without being disturbed by the wire 2 by placing a finger on the protruding piece 312. Therefore, the fall prevention device 10 of the present embodiment can be expected to improve the work efficiency because the operator can more easily handle the base member 3.
(Embodiment 3)
Hereinafter, Embodiment 3 of the fall prevention device 10 according to the present invention will be described with reference to FIGS. 6 to 8. The present embodiment is characterized by the structure of the presser member 4, and other configurations are the same as those of the first embodiment. Therefore, the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. In the following description, the vertical and horizontal directions and the front-rear direction are defined in the directions shown in FIGS. Further, in the direction shown in FIG. 6, the front side is the front side.

  The presser member 4 includes a main portion 42 and leg portions 43. The main part 42 is formed in a rectangular plate shape provided with an insertion hole into which the fastening member 5 is inserted at the center. The main portion 42 is formed with a pair of leg portions 43 that fall downward from the left and right end edges of the main portion 42.

  The pressing member 4 is superposed on the base member 3 from above the base member 3 so that the leg portion 43 faces downward so that the leg portion 43 does not hit the side wall portions 32 and 33 of the base member 3.

  Therefore, since the fall prevention device 10 of the present embodiment is formed so that the operator can easily hold the presser member 4 by providing the leg portions 43, improvement in work efficiency can be expected.

DESCRIPTION OF SYMBOLS 1 Fastener 2 Wire 3 Base member 4 Holding member 5 Fastening member 10 Fall prevention apparatus

Claims (5)

  A fastener and a wire; the fastener includes a base member, a pressing member, and a fastening member; the base member includes a plate-like flat plate portion having an opening; and one surface of the flat plate portion A guide portion for positioning the wire so as not to overlap the opening portion, the pressing member is formed in a plate shape having an insertion hole, and the fastening member is the opening portion of the flat plate portion And the wire is sandwiched between the flat plate portion and the presser member, and the base member and the presser member are attracted to each other by the fastening member. The fall prevention device is configured to be added.   The guide portion includes an introduction hole and a lead-out hole, and is configured to let the wire introduced from the introduction hole pass through one surface of the flat plate portion and lead out from the lead-out hole. The fall prevention device according to claim 1, characterized in that:   The introduction hole includes a first introduction hole and a second introduction hole, the lead-out hole includes a first lead-out hole and a second lead-out hole, and the first introduction hole and the first lead-out hole are The wire is configured such that the wire does not overlap the opening when viewed from the thickness direction of the flat plate portion, and the second introduction hole and the second lead-out hole are the wire when viewed from the thickness direction of the flat plate portion. 3 is configured so as not to overlap the opening and to face the wire passed from the first introduction hole to the first lead-out hole with the opening interposed therebetween. Fall prevention device.   The fall prevention device according to any one of claims 1 to 3, wherein the fastening member is a male screw, and a female screw that fits into the male screw is provided in the opening of the base member.   An instrument main body and the fall prevention device according to claim 1, wherein one end of the wire is fixed to the instrument main body, and the other end of the wire is fixed to the structure by the fastener. Characteristic lighting equipment.

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