WO2016135928A1 - Bushing and light fixture - Google Patents
Bushing and light fixture Download PDFInfo
- Publication number
- WO2016135928A1 WO2016135928A1 PCT/JP2015/055663 JP2015055663W WO2016135928A1 WO 2016135928 A1 WO2016135928 A1 WO 2016135928A1 JP 2015055663 W JP2015055663 W JP 2015055663W WO 2016135928 A1 WO2016135928 A1 WO 2016135928A1
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- WIPO (PCT)
- Prior art keywords
- bush
- thin
- column
- insertion hole
- view
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
- F21S8/08—Lighting devices intended for fixed installation with a standard
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V31/00—Gas-tight or water-tight arrangements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B17/00—Insulators or insulating bodies characterised by their form
- H01B17/56—Insulating bodies
- H01B17/58—Tubes, sleeves, beads, or bobbins through which the conductor passes
Definitions
- the present invention relates to a bush for inserting a pipe and a lighting fixture.
- lighting fixtures installed outdoors such as road lights
- lighting fixtures that are used, for example, by installing a column made of a metal pipe on the side of the road and attaching it to the tip of the column.
- a rubber bush may be attached to the connecting portion between the lighting device and the support column in order to prevent rainwater, insects, and the like from entering the device main body.
- the bush is used not only in lighting equipment but also in various places such as a casing wall through which an electric wire passes (see, for example, Patent Document 1).
- the bushing pipe mounting part is integrally formed in a multi-stage shape, and the mounting part is cut at a position that matches the outer diameter of the pipe to be inserted, so that one type of bush can accommodate several types of pipe outer diameters.
- the technique to make is disclosed (for example, refer patent document 2).
- the bushing for lighting fixtures has only one type of insertion hole for inserting the column, so prepare multiple types of bushes according to the outer diameter of the column to which the lighting fixture is attached and match the outer diameter of the column. It was necessary to select a bush and attach it to a lighting fixture. In addition, even if a stepped bush that can accommodate pipes with different outer diameters is used as in the conventional configuration described above, it is necessary to cut the mounting portion of the bush to a suitable hole diameter using a cutter or nipper at the site. There is. Since the work of attaching the luminaire to the column is performed at a high place, the work using a sharp tool is not preferable.
- This invention is made
- the bush of the present invention is a bush having an insertion hole into which a pipe having a different outer diameter can be inserted, and a plurality of annular thin portions are provided at positions corresponding to the outer diameter of the pipe.
- an insertion hole having a different diameter can be formed by cutting a thin portion.
- the plurality of insertion holes may be formed so that one point on the circumference substantially matches.
- a cutout portion serving as a starting point of breakage may be formed in each of the thin portions.
- the notch portion may be formed on the opposite side to the one point with respect to the center of the thin portion.
- the plurality of insertion holes may be formed in multiple stages.
- the present invention provides a lighting fixture in which a lamp body is supported by a pipe, the bush including an insertion hole into which a pipe having a different outer diameter can be inserted, and the bush is annular at a position corresponding to the outer diameter of the pipe. It is characterized in that a plurality of thin wall portions are provided and the thin wall portions are cut so that insertion holes having different diameters can be formed.
- the bush is provided with a plurality of annular thin portions at positions corresponding to the outer diameter of the pipe, and a plurality of insertion holes having different diameters can be formed by cutting the thin portions. Pipes with different outer diameters can be inserted without using a tool.
- FIG. 1 is a perspective view showing a road lamp according to a first embodiment of the present invention.
- 2A and 2B are diagrams illustrating a lighting fixture, where FIG. 2A is a plan view, FIG. 2B is a side view, FIG. 2C is a bottom view, FIG. 2D is a front view, and FIG. FIG. 3 is a bottom view showing the lighting apparatus with the lower cover body removed.
- 4 is a cross-sectional view taken along the line IV-IV in FIG. 5 is a cross-sectional view taken along the line VV of FIG.
- FIG. 6 is a perspective view showing the bush.
- 7A and 7B are diagrams showing the bush, in which FIG. 7A is a plan view, FIG. 7B is a front view, FIG.
- FIG. 7C is a side view
- FIG. 8 is a sectional view taken along line VIII-VIII in FIG.
- FIG. 9 is an enlarged view of a portion A in FIG.
- FIG. 10 is a perspective view showing a bush according to the second embodiment of the present invention.
- 11A and 11B are diagrams showing a bush, in which FIG. 11A is a plan view, FIG. 11B is a front view, FIG. 11C is a side view, and FIG. 12 is a cross-sectional view taken along the line XII-XII in FIG.
- FIG. 13 is an enlarged view of a portion B in FIG.
- FIG. 1 is a perspective view showing a road lamp according to the first embodiment.
- 2A and 2B are views showing a road light.
- FIG. 2A is a plan view
- FIG. 2B is a side view
- FIG. 2C is a bottom view
- FIG. 2D is a front view
- FIG. (E) is a rear view.
- FIG. 3 is a bottom view showing the road lamp with the lower cover body removed.
- 4 is a sectional view taken along line IV-IV in FIG. 3
- FIG. 3 is a sectional view taken along line VV in FIG. As shown in FIG.
- the road lamp 1 includes an instrument body 10 that is supported by a distal end portion 3 of an arm-type column (pipe) 5.
- the column 5 is a column erected on the roadside ground such as a road shoulder, and the column 5 is bent from the middle of the column and the tip 3 extends horizontally or inclined at a predetermined angle with respect to the horizontal direction. Yes.
- the appliance body 10 is formed of a material (for example, aluminum or aluminum alloy) that has sufficient corrosion resistance to withstand outdoor use and has high thermal conductivity. As shown in FIGS. 1 and 2, the instrument main body 10 has a long rectangular box shape in plan view from one end 11A to the other end 11B, and is supported by the tip 3 of the column 5 in the vicinity of the one end 11A. The other end 11B is installed with the road side (the roadway side) facing.
- a material for example, aluminum or aluminum alloy
- the instrument body 10 includes a base case body 20 and a lower cover body 21, which constitute a substantially box-shaped case body of the instrument body 10.
- the base case body 20 is formed in a box shape having an open lower surface, and the inside thereof is a clamp mounting chamber 27 ⁇ / b> B on the one end 11 ⁇ / b> A side of the instrument body 10 and a light source chamber 27 ⁇ / b> A on the other end 11 ⁇ / b> B side. And are partitioned by a partition 28.
- a clamp unit 26 is disposed in the clamp mounting chamber 27B, and a light source (not shown) (for example, a light emitting element such as an LED) is disposed in the light source chamber 27A.
- the light source chamber 27 ⁇ / b> A is covered with a flat plate-like transparent globe 13
- the clamp mounting chamber 27 ⁇ / b> B is covered with a flat plate-like lower cover body 21, and the globe 13 and the lower cover body 21 are fastened to the lower surface of the base case body 20. (For example, screws).
- Each of the globe 13 and the lower cover body 21 is provided with an annular packing (not shown) as a seal member on the entire circumference. When the globe 13 and the lower cover body 21 are attached to the base case body 20, the packing is sandwiched between the globe 13 and the base case body 20 and between the lower cover body 21 and the base case body 20. Thus, the inside of the base case body 20 is sealed.
- the base case body 20 includes a top surface 10C, a back surface 10B (an outer surface in the vicinity of the one end 11A), a front surface 10D (an outer surface in the vicinity of the other end 11B), and left and right outer surfaces among the six outer surfaces of the instrument body 10. 10E and 10F are comprised, and the lower cover body 21 comprises the bottom face 10A of the instrument main body 10.
- FIG. The instrument body 10 is provided with a shorting cap 7 that can be connected to an automatic lighting device (not shown) that receives light and automatically turns on a light source (not shown). Is mounted in the lighting device mounting opening 12 formed on the top surface 10C.
- An arm insertion hole 15 for inserting the support column 5 is provided on the back surface 10B.
- the clamp unit 26 includes a bracket 26A that holds the tip 3 of the column 5 from below, and a fixture 26B (bolts in this embodiment) that fixes the bracket 26A to the base case body 20.
- pillar 5 is not limited to this structure.
- the instrument body 10 is configured so that the mounting angle in the vertical direction of the column 5 can be adjusted in multiple stages.
- the base case body 20 has a ceiling surface 20A that constitutes the ceiling of the clamp mounting chamber 27B, and support bodies 30 that are in contact with and support the upper surface of the column 5 are provided on the ceiling surface 20A at predetermined intervals. It has been.
- the plurality of supports 30 are formed in a step shape by increasing the amount of protrusion downward from the ceiling surface 20A from the back surface 10B to the front surface 10D. By bringing the upper surface of the support column 5 into contact with any one of the supports 30, the vertical mounting angle of the support column 5 can be adjusted in multiple stages. By adjusting the attachment angle of the column 5 in multiple stages, the vertical inclination angle of the instrument body 10 can be adjusted in multiple stages.
- a bush 40 for sealing the arm insertion hole 15 is fitted into the arm insertion hole 15, and the support column 5 is inserted into the insertion hole 41 of the bush 40.
- the bush 40 will be described in detail.
- FIG. 6 is a perspective view showing the bush 40.
- 7 is a view showing the bush 40
- FIG. 7A is a plan view
- FIG. 7B is a front view
- FIG. 7C is a side view
- FIG. 7D is a bottom view
- 8 is a cross-sectional view taken along line VIII-VIII in FIG. 7,
- FIG. 9 is an enlarged view of a portion A in FIG.
- the bush 40 is a packing formed using an elastic material such as rubber, for example, and is formed in an annular shape as shown in FIG.
- a fitting groove 42 to be fitted into the arm insertion hole 15 is formed on the outer peripheral surface of the bush 40 in the circumferential direction. By fitting the fitting groove 42 into the arm insertion hole 15, one end 40A (axially inner side) of the bush 40 is positioned inside the instrument body 10, and the other end 40B (axially inner side) of the bush 40 is instrument body. 10 outside.
- the bush 40 includes a planar attachment portion 43 for attaching the support column 5 on the other end 40 ⁇ / b> B side, and an insertion hole 41 ⁇ / b> A for inserting the support column 5 is formed in the attachment portion 43.
- the diameter D1 of the insertion hole 41A is set according to the support column 5 having the smallest outer diameter among the assumed outer diameters.
- the insertion hole 41 ⁇ / b> A is eccentrically provided on the upper side of the instrument body 10 with respect to the center of the bush 40.
- a plurality of annular thin portions 44 are formed around the insertion hole 41 ⁇ / b> A in the attachment portion 43.
- the plurality of thin portions 44 are formed in the number corresponding to the assumed outer diameter of the column 5, and the diameters of the plurality of thin portions 44 are set to a diameter corresponding to the assumed outer diameter of the column 5.
- the plurality of thin-walled portions 44 are formed so that the uppermost point P1 on the circumference substantially coincides with each other and does not contact each other. In order to make the plurality of thin portions 44 approach one point P1, the width of each thin portion 44 is formed so as to be thinner toward the top. By cutting any of the thin portions 44, insertion holes 41B to 41D are formed.
- the insertion holes 41 formed by the thin-walled portion 44 are denoted by 41B to 41D in ascending order of diameter.
- the diameters D1 to D4 of the four insertion holes 41A to 41D are set to 27 mm, 35.7 mm, 40.8 mm, and 51.4 mm, respectively.
- the size is not limited to this.
- the attachment portion 43 is provided with thick portions 45 that are thicker than the thin portions 44, alternately with the thin portions 44.
- the thin portion 44 is disposed outside the center M in the thickness direction of the thick portion 45.
- the thin portion 44 is formed to a thickness that can be cut off, and the thick portion 45 is formed to a thickness that does not cause damage when the thin portion 44 is cut.
- the ease of tearing of the thin portion 44 is caused by the difference between the thickness of the thin portion 44 and the thickness of the thin portion 44 and the thick portion 45.
- the thickness of the thin part 44 and the thick part 45 is each set to 0.5 mm and 2 mm, it is not limited to this.
- Each thin portion 44 is formed with at least one notch 46 (in this embodiment, one).
- the cutout portion 46 is a through portion that becomes a starting point when the thin portion 44 is to be cut, and in this embodiment, the cutout portion 46 is formed as a round hole, and the diameter of the round hole functions as a starting point of fracture.
- the surface tension of water is set at about 1.5 mm.
- the shape, size, and number of the notches 46 are not limited to this, and may be formed as triangular holes, square holes, or cut lines, for example.
- the cutout portion 46 is provided at the lowermost portion of the thin portion 44 on the opposite side to the one point P1 in the circumferential direction.
- a positioning member 29 is integrally formed on the inner surface of the back surface 10 ⁇ / b> B at a position below the arm insertion hole 15.
- a positioning groove 47 is formed on the outer end surface of the bush 40 on the one end 40 ⁇ / b> A side at a position and shape corresponding to the positioning member 29.
- the positioning member 29 is formed as two prismatic protrusions, and the positioning groove 47 is provided for each positioning member 29 and is formed into a rectangular groove so that the positioning member 29 can be inserted.
- the positioning member 29 and the positioning groove 47 By providing the positioning member 29 and the positioning groove 47, the angular deviation in the circumferential direction of the bush 40 can be prevented, and the sealing performance between the arm insertion hole 15 and the support column 5 can be secured. Note that the position, number, and shape of the positioning member 29 and the positioning groove 47 are not limited thereto.
- the arm insertion hole 15 is arranged so that the mounting range of the column 5 can be secured. It is formed in a long round shape in the direction. Similarly to the arm insertion hole 15, the bush 40 is also formed in an oval shape that is long in the vertical direction of the instrument body 10. By forming the bush 40 in the shape of an elongated circle, the rotation of the bush 40 can be suppressed, so that the point P1 reliably contacts the upper surface of the column 5 and the sealing property between the arm insertion hole 15 and the column 5 is improved. There is also an effect that it can be secured.
- a groove-shaped reduced diameter portion 48 is formed in the circumferential direction on the other end 40B side of the outer peripheral surface of the bush 40. Since the attachment portion 43 can be inclined with respect to the axial direction by providing the reduced diameter portion 48, the attachment portion of the bush 40 follows the attachment angle of the support column 5 even if the attachment angle of the support column 5 is adjusted. 43 can move, and the sealing performance between the arm insertion hole 15 and the support column 5 can be secured.
- the road lamp 1 is shipped with the bush 40 fitted into the arm insertion hole 15.
- the work of attaching the road light 1 to the column 5 is work in the vicinity of the tip 3 of, for example, 5 to 8 m from the ground, that is, at a high place.
- the operator confirms the outer diameter of the tip portion 3 of the support column 5 at a high place, and cuts the thin portion 44 at a position matching the outer diameter.
- the thin portion 44 can be easily cut off without using a sharp tool such as a nipper or a cutter.
- the insertion hole 41 corresponding to the outer diameter of the column 5 can be easily formed.
- the support 5 having several types of outer diameters is formed with one type of bush. Since it is possible to cope with it, the number of parts can be reduced, and management and selection of plural kinds of parts can be omitted.
- it is not necessary to bring a sharp tool for cutting the bush 40 to a high place it is safe and easy to attach the road light 1 at the site (high place).
- the hole diameter of the bush 40 is matched with the outer diameter of the column 5 first, the cutting work of the bush 40 at a high place becomes unnecessary.
- the outer diameter of the column 5 does not match the hole diameter of the bush 40 and the hole diameter of the bush 40 is too large, the road lamp 1 is lowered to the ground once again and a new bush 40 is attached to the road lamp 1. Work is required.
- the bush 40 includes a thin portion 44 having a thickness that can be cut off, and a thick portion 45 that is thicker than the thin portion 44. Due to the difference in thickness between the thin wall portion 44 and the thick wall portion 45, the thin wall portion 44 can be easily cut off without cutting off portions other than the thin wall portion 44 that needs to be broken. Further, since the notched portion 46 is formed in the thin portion 44, the thin portion 44 is not easily cut off, or a portion other than the thin portion 44 that needs to be broken is cut off forcibly. Can be prevented. Moreover, since the notch part 46 was formed as a hole, the notch part 46 can be made visible more easily than the case where it forms as a cut
- the notch portion 46 is disposed on the opposite side to the point P1 with respect to the center of the thin portion 44, that is, at a portion where the plurality of thin portions 44 are separated from the position of the single point P1, and thus the thin portion 44 that breaks. It can suppress that the thin part 44 adjacent to breaks. Since the notch 46 is provided at the lowermost part of the thin portion 44, the notch 46 is positioned below the support column 5, so that foreign matter can be prevented from entering the notch 46. Further, in the present embodiment, since the width of each thin portion 44 is formed so as to become thicker at the lowermost portion, the notch portion 46 can be designed at the lowermost portion by providing the cutout portion 46 at the lowermost portion. The degree can be improved.
- the bush 40 is a bush having the insertion hole 41 into which the support column 5 having a different outer diameter can be inserted, and has an annular thin wall at a position corresponding to the outer diameter of the support column 5.
- a plurality of insertion holes 41 having different diameters can be formed by providing the portion 44 and cutting the thin portion 44 into pieces. With this configuration, it is possible to insert the column 5 having a different outer diameter without using a sharp tool.
- the plurality of insertion holes 41 are formed so that the circumferential point P1 substantially coincides. Even if the outer diameter of the support
- the notch 46 is formed on the opposite side of the point P1 with respect to the center of the thin portion 44.
- FIG. 10 is a perspective view showing a bush 140 according to a modification.
- 11A and 11B are views showing the bush 140.
- FIG. 11A is a plan view
- FIG. 11B is a front view
- FIG. 11C is a side view
- FIG. 11D is a bottom view.
- 12 is a cross-sectional view taken along the line XII-XII of FIG. 11, and FIG.
- the bush 140 is a packing formed using an elastic material such as rubber, for example, and is formed in an oval shape as shown in FIGS. 10 to 13.
- a fitting groove 42 to be fitted into the arm insertion hole 15 is formed on one end 40A side of the outer peripheral surface of the bush 140, and a reduced diameter portion 48 is formed on the other end 40B side of the outer peripheral surface of the bush 140 in the circumferential direction.
- a positioning groove 47 is formed on the outer end surface of the bush 40 on the one end 40 ⁇ / b> A side at a position and shape corresponding to the positioning member 29.
- the thin wall portion 144 protrudes outward in the axial direction of the bush 140 to form a side wall portion, and the thin wall portion 144 and the thick wall portion 145 extending in a planar shape in the radial direction of the bush 140 are alternately arranged.
- the mounting portion 143 is formed in a step shape.
- An insertion hole 141A for inserting the column 5 is formed in the mounting portion 143, and the diameter E1 of the insertion hole 141A is set according to the column 5 having the smallest outer diameter among the assumed outer diameters.
- the insertion hole 141 ⁇ / b> A is eccentrically provided on the upper side of the instrument body 10 with respect to the center of the bush 140.
- the plurality of thin wall portions 144 are formed by the number of outer diameters of the assumed support columns 5, and the diameters of the plurality of thin wall portions 144 are set to a diameter corresponding to the assumed outer diameter of the support columns 5.
- the plurality of thin portions 44 are formed so that the uppermost point P2 on the circumference coincides.
- the width of the thin portion 44 is the same in the circumferential direction.
- the diameters E1 to E4 of the four insertion holes 141A to 141D are set to 32 mm, 42 mm, 48 mm, and 60.5 mm, respectively.
- the number and size of the insertion holes 141A to 141D are the same. It is not limited to.
- the thicknesses of the thin portion 144 and the thick portion 145 are set to 0.5 mm and 2 mm, respectively, as in the first embodiment, but are not limited thereto.
- Each thin-walled portion 144 is formed with at least one cutout portion 46 (one in the present embodiment) serving as a starting point of breakage, and this cutout portion 146 is one point with respect to the center of the thin-walled portion 144. It is on the opposite side to P2 and is provided at the lowermost portion of the thin portion 144.
- a plurality of insertion holes 141 are formed in multiple stages. With this configuration, since the plurality of insertion holes 141 can be made to coincide with each other at one point P2, even if the outer diameter of the column 5 is different, the insertion hole 141 can be more accurately matched with the position of the column 5, The sealing property between the insertion hole 15 and the column 5 can be further ensured.
- the above-described embodiment is an aspect of the present invention, and it is needless to say that the embodiment can be appropriately changed without departing from the gist of the present invention.
- the bushes 40 and 140 are formed in an oval shape, but the shape of the bushes 40 and 140 is not limited to this.
- the bushes 40 and 140 may be formed in a circular shape as long as the mounting angle of the column 5 is not adjusted.
- the insertion holes 41 and 141 are eccentric with respect to the centers of the bushes 40 and 140.
- the insertion holes 41 and 141 may be disposed at the centers of the bushes 40 and 140. In this case, what is necessary is just to change the attachment position with respect to the instrument main body 10 of the support
- the instrument main body 10 is attached to the arm-type support column 5.
- the instrument main body 10 is attached to a pole-type support column (also referred to as a straight type) in which the distal end portion 3 extends straight in the vertical direction.
- a pole insertion hole for inserting a pole-shaped support may be formed on the bottom surface 10A near the one end 11A, for example.
- the road lamp 1 may be configured to be attachable to both the arm-type column 5 and the pole-type column.
- the light source is described as a light emitting element such as an LED, but the light source is not limited to the light emitting element, and various light sources such as a lamp can be used.
- the lighting fixture was demonstrated as the road light 1, if a lighting fixture is not only a road light but a lighting fixture with which a fixture main body is supported by the front-end
- the bushes 40 and 140 of the present invention are applicable not only to lighting equipment but also to various devices.
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- General Engineering & Computer Science (AREA)
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- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Provided are a bushing and a light fixture with which it is possible to insert pipes having different outside diameters without the use of a sharp tool. A bushing 40 has an insertion hole 41 through which pipes 5 having different outside diameters can be inserted, wherein a plurality of annular thin parts 44 are provided to positions corresponding to the outside diameters of the pipes 5, and a plurality of insertion holes 41 having different diameters can be formed by tearing off the thin parts 44.
Description
本発明は、パイプを挿入するブッシュ及び照明器具に関する。
The present invention relates to a bush for inserting a pipe and a lighting fixture.
従来、道路灯等の屋外に設置される照明器具においては、例えば金属パイプからなる支柱を道路脇に設置し、その支柱の先端部に取り付けて使用される照明器具がある。その照明器具と支柱との接続部には、雨水や虫等が器具本体内に浸入することを抑制するため、例えばゴム製のブッシュを取付けられていることがある。
ブッシュは、照明器具に限らず、電線が通されるケーシング壁等、多様な箇所に使用されている(例えば、特許文献1参照)。
また、ブッシュのパイプを取り付ける取付部を多段形状に一体成形し、挿入するパイプの外径に合わせた位置で取付部を切断することにより、1種のブッシュで数種のパイプの外径に対応させる技術が開示されている(例えば、特許文献2参照)。 2. Description of the Related Art Conventionally, in lighting fixtures installed outdoors such as road lights, there are lighting fixtures that are used, for example, by installing a column made of a metal pipe on the side of the road and attaching it to the tip of the column. For example, a rubber bush may be attached to the connecting portion between the lighting device and the support column in order to prevent rainwater, insects, and the like from entering the device main body.
The bush is used not only in lighting equipment but also in various places such as a casing wall through which an electric wire passes (see, for example, Patent Document 1).
Also, the bushing pipe mounting part is integrally formed in a multi-stage shape, and the mounting part is cut at a position that matches the outer diameter of the pipe to be inserted, so that one type of bush can accommodate several types of pipe outer diameters. The technique to make is disclosed (for example, refer patent document 2).
ブッシュは、照明器具に限らず、電線が通されるケーシング壁等、多様な箇所に使用されている(例えば、特許文献1参照)。
また、ブッシュのパイプを取り付ける取付部を多段形状に一体成形し、挿入するパイプの外径に合わせた位置で取付部を切断することにより、1種のブッシュで数種のパイプの外径に対応させる技術が開示されている(例えば、特許文献2参照)。 2. Description of the Related Art Conventionally, in lighting fixtures installed outdoors such as road lights, there are lighting fixtures that are used, for example, by installing a column made of a metal pipe on the side of the road and attaching it to the tip of the column. For example, a rubber bush may be attached to the connecting portion between the lighting device and the support column in order to prevent rainwater, insects, and the like from entering the device main body.
The bush is used not only in lighting equipment but also in various places such as a casing wall through which an electric wire passes (see, for example, Patent Document 1).
Also, the bushing pipe mounting part is integrally formed in a multi-stage shape, and the mounting part is cut at a position that matches the outer diameter of the pipe to be inserted, so that one type of bush can accommodate several types of pipe outer diameters. The technique to make is disclosed (for example, refer patent document 2).
しかしながら、照明器具用のブッシュには、支柱を挿入する挿入孔が1種のみ設けられているため、照明器具を取り付ける支柱の外径に合わせてブッシュを複数種用意し、支柱の外径に合ったブッシュを選択して照明器具に取付けて使用する必要があった。
また、上述した従来の構成のように、外径が異なるパイプに対応できる段付のブッシュを採用したとしても、現場でカッターやニッパを用いて適合する穴径にブッシュの取付部を切断する必要がある。照明器具を支柱に取り付ける作業は高所で行なうため、鋭利な工具を使用する作業は好ましくない。
本発明は、上述した事情に鑑みてなされたものであり、鋭利な工具を用いることなく、外径が異なるパイプを挿入可能なブッシュ及び照明器具を提供することを目的とする。 However, the bushing for lighting fixtures has only one type of insertion hole for inserting the column, so prepare multiple types of bushes according to the outer diameter of the column to which the lighting fixture is attached and match the outer diameter of the column. It was necessary to select a bush and attach it to a lighting fixture.
In addition, even if a stepped bush that can accommodate pipes with different outer diameters is used as in the conventional configuration described above, it is necessary to cut the mounting portion of the bush to a suitable hole diameter using a cutter or nipper at the site. There is. Since the work of attaching the luminaire to the column is performed at a high place, the work using a sharp tool is not preferable.
This invention is made | formed in view of the situation mentioned above, and it aims at providing the bush and lighting fixture which can insert the pipe from which an outer diameter differs, without using a sharp tool.
また、上述した従来の構成のように、外径が異なるパイプに対応できる段付のブッシュを採用したとしても、現場でカッターやニッパを用いて適合する穴径にブッシュの取付部を切断する必要がある。照明器具を支柱に取り付ける作業は高所で行なうため、鋭利な工具を使用する作業は好ましくない。
本発明は、上述した事情に鑑みてなされたものであり、鋭利な工具を用いることなく、外径が異なるパイプを挿入可能なブッシュ及び照明器具を提供することを目的とする。 However, the bushing for lighting fixtures has only one type of insertion hole for inserting the column, so prepare multiple types of bushes according to the outer diameter of the column to which the lighting fixture is attached and match the outer diameter of the column. It was necessary to select a bush and attach it to a lighting fixture.
In addition, even if a stepped bush that can accommodate pipes with different outer diameters is used as in the conventional configuration described above, it is necessary to cut the mounting portion of the bush to a suitable hole diameter using a cutter or nipper at the site. There is. Since the work of attaching the luminaire to the column is performed at a high place, the work using a sharp tool is not preferable.
This invention is made | formed in view of the situation mentioned above, and it aims at providing the bush and lighting fixture which can insert the pipe from which an outer diameter differs, without using a sharp tool.
上述した目的を達成するために、本発明のブッシュは、外径が異なるパイプを挿入可能な挿入孔を有するブッシュであって、前記パイプの外径に対応する位置に環状の薄肉部を複数設け、薄肉部を千切ることで径が異なる挿入孔を形成可能に構成したことを特徴とする。
In order to achieve the above-described object, the bush of the present invention is a bush having an insertion hole into which a pipe having a different outer diameter can be inserted, and a plurality of annular thin portions are provided at positions corresponding to the outer diameter of the pipe. In addition, it is characterized in that an insertion hole having a different diameter can be formed by cutting a thin portion.
上述の構成において、複数の前記挿入孔を周上の一点が略一致するように形成してもよい。
In the above-described configuration, the plurality of insertion holes may be formed so that one point on the circumference substantially matches.
上述の構成において、前記薄肉部のそれぞれに破断の起点となる切り欠き部を形成してもよい。
In the above-described configuration, a cutout portion serving as a starting point of breakage may be formed in each of the thin portions.
上述の構成において、前記切り欠き部を前記薄肉部の中心に対して前記一点と反対側に形成してもよい。
In the above-described configuration, the notch portion may be formed on the opposite side to the one point with respect to the center of the thin portion.
上述の構成において、複数の前記挿入孔を多段に形成してもよい。
In the above-described configuration, the plurality of insertion holes may be formed in multiple stages.
また、本発明は、灯具本体をパイプに支持した照明器具において、外径が異なるパイプを挿入可能な挿入孔を有するブッシュを備え、前記ブッシュを、前記パイプの外径に対応する位置に環状の薄肉部を複数設けて、薄肉部を千切ることで径が異なる挿入孔を形成可能に構成したことを特徴とする。
Further, the present invention provides a lighting fixture in which a lamp body is supported by a pipe, the bush including an insertion hole into which a pipe having a different outer diameter can be inserted, and the bush is annular at a position corresponding to the outer diameter of the pipe. It is characterized in that a plurality of thin wall portions are provided and the thin wall portions are cut so that insertion holes having different diameters can be formed.
本発明によれば、ブッシュには、パイプの外径に対応する位置に環状の薄肉部を複数設け、薄肉部を千切ることで径が異なる複数の挿入孔を形成可能に構成したため、鋭利な工具を用いることなく、外径が異なるパイプを挿入できる。
According to the present invention, the bush is provided with a plurality of annular thin portions at positions corresponding to the outer diameter of the pipe, and a plurality of insertion holes having different diameters can be formed by cutting the thin portions. Pipes with different outer diameters can be inserted without using a tool.
以下、図面を参照して本発明の実施形態について説明する。本実施形態では、照明器具の一例として道路灯を説明する。
<第1実施形態>
図1は、第1本実施形態に係る道路灯を示す斜視図である。図2は道路灯を示す図であり、図2(A)は平面図、図2(B)は側面図、図2(C)は底面図、図2(D)は正面図、及び図2(E)は背面図である。また、図3は、下カバー体を外した道路灯を示す底面図である。図4は図3のIV-IV断面図であり、図3は図2のV-V断面図である。
この道路灯1は、図1に示すように、アーム型の支柱(パイプ)5の先端部3に支持される器具本体10を備えている。支柱5は路肩等の道路脇の地面に立設された柱であり、支柱5は、柱の途中から曲がって先端部3が水平方向に水平、或いは水平方向に対して所定角度傾いて延びている。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. In this embodiment, a road lamp will be described as an example of a lighting fixture.
<First Embodiment>
FIG. 1 is a perspective view showing a road lamp according to the first embodiment. 2A and 2B are views showing a road light. FIG. 2A is a plan view, FIG. 2B is a side view, FIG. 2C is a bottom view, FIG. 2D is a front view, and FIG. (E) is a rear view. FIG. 3 is a bottom view showing the road lamp with the lower cover body removed. 4 is a sectional view taken along line IV-IV in FIG. 3, and FIG. 3 is a sectional view taken along line VV in FIG.
As shown in FIG. 1, theroad lamp 1 includes an instrument body 10 that is supported by a distal end portion 3 of an arm-type column (pipe) 5. The column 5 is a column erected on the roadside ground such as a road shoulder, and the column 5 is bent from the middle of the column and the tip 3 extends horizontally or inclined at a predetermined angle with respect to the horizontal direction. Yes.
<第1実施形態>
図1は、第1本実施形態に係る道路灯を示す斜視図である。図2は道路灯を示す図であり、図2(A)は平面図、図2(B)は側面図、図2(C)は底面図、図2(D)は正面図、及び図2(E)は背面図である。また、図3は、下カバー体を外した道路灯を示す底面図である。図4は図3のIV-IV断面図であり、図3は図2のV-V断面図である。
この道路灯1は、図1に示すように、アーム型の支柱(パイプ)5の先端部3に支持される器具本体10を備えている。支柱5は路肩等の道路脇の地面に立設された柱であり、支柱5は、柱の途中から曲がって先端部3が水平方向に水平、或いは水平方向に対して所定角度傾いて延びている。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. In this embodiment, a road lamp will be described as an example of a lighting fixture.
<First Embodiment>
FIG. 1 is a perspective view showing a road lamp according to the first embodiment. 2A and 2B are views showing a road light. FIG. 2A is a plan view, FIG. 2B is a side view, FIG. 2C is a bottom view, FIG. 2D is a front view, and FIG. (E) is a rear view. FIG. 3 is a bottom view showing the road lamp with the lower cover body removed. 4 is a sectional view taken along line IV-IV in FIG. 3, and FIG. 3 is a sectional view taken along line VV in FIG.
As shown in FIG. 1, the
器具本体10は、屋外使用に十分に耐え得る耐食性があり、なおかつ、熱伝導性が高い材料(例えば、アルミニウムやアルミニウム合金)で形成されている。この器具本体10は、図1及び図2に示すように、一端11Aから他端11Bにかけて長い平面視略矩形の箱型を成し、その一端11Aの近傍で上記支柱5の先端部3に支持され、他端11Bを道路側(車道側)に向けて設置される。
The appliance body 10 is formed of a material (for example, aluminum or aluminum alloy) that has sufficient corrosion resistance to withstand outdoor use and has high thermal conductivity. As shown in FIGS. 1 and 2, the instrument main body 10 has a long rectangular box shape in plan view from one end 11A to the other end 11B, and is supported by the tip 3 of the column 5 in the vicinity of the one end 11A. The other end 11B is installed with the road side (the roadway side) facing.
器具本体10は、ベースケース体20と、下カバー体21とを備え、これらが器具本体10の略箱型のケース体を構成する。ベースケース体20は、図3に示すように、下面を開放する箱形に形成され、その内部が器具本体10の一端11Aの側のクランプ取付室27Bと、他端11Bの側の光源室27Aとに仕切28で仕切られている。クランプ取付室27Bにはクランプユニット26が配設され、光源室27Aには不図示の光源(例えば、LED等の発光素子)が配設されている。
The instrument body 10 includes a base case body 20 and a lower cover body 21, which constitute a substantially box-shaped case body of the instrument body 10. As shown in FIG. 3, the base case body 20 is formed in a box shape having an open lower surface, and the inside thereof is a clamp mounting chamber 27 </ b> B on the one end 11 </ b> A side of the instrument body 10 and a light source chamber 27 </ b> A on the other end 11 </ b> B side. And are partitioned by a partition 28. A clamp unit 26 is disposed in the clamp mounting chamber 27B, and a light source (not shown) (for example, a light emitting element such as an LED) is disposed in the light source chamber 27A.
光源室27Aは平板状の透明な素材のグローブ13で覆われ、クランプ取付室27Bは平板状の下カバー体21で覆われ、グローブ13及び下カバー体21はベースケース体20の下面に締結具(例えば、ねじ)で固定される。グローブ13及び下カバー体21には、それぞれシール部材としての環状のパッキン(不図示)が全周に設けられている。グローブ13及び下カバー体21をベースケース体20に取り付けた際には、グローブ13とベースケース体20との間、及び、下カバー体21とベースケース体20との間でそれぞれパッキンが挟み込まれて、当該ベースケース体20の内部がシールされる。
The light source chamber 27 </ b> A is covered with a flat plate-like transparent globe 13, the clamp mounting chamber 27 </ b> B is covered with a flat plate-like lower cover body 21, and the globe 13 and the lower cover body 21 are fastened to the lower surface of the base case body 20. (For example, screws). Each of the globe 13 and the lower cover body 21 is provided with an annular packing (not shown) as a seal member on the entire circumference. When the globe 13 and the lower cover body 21 are attached to the base case body 20, the packing is sandwiched between the globe 13 and the base case body 20 and between the lower cover body 21 and the base case body 20. Thus, the inside of the base case body 20 is sealed.
ベースケース体20は、器具本体10の六面の外側面のうち、天面10C、背面10B(一端11A近傍の外側面)、正面10D(他端11B近傍の外側面)、左右側の外側面10E、10Fを構成し、下カバー体21は、器具本体10の底面10Aを構成する。
器具本体10には、光を受光して光源(不図示)を自動的に点灯する自動点灯器(不図示)を接続可能な短絡キャップ7(shorting cap)が設けられており、この短絡キャップ7は、天面10Cに形成された点灯器取付開口部12に装着されている。 Thebase case body 20 includes a top surface 10C, a back surface 10B (an outer surface in the vicinity of the one end 11A), a front surface 10D (an outer surface in the vicinity of the other end 11B), and left and right outer surfaces among the six outer surfaces of the instrument body 10. 10E and 10F are comprised, and the lower cover body 21 comprises the bottom face 10A of the instrument main body 10. FIG.
Theinstrument body 10 is provided with a shorting cap 7 that can be connected to an automatic lighting device (not shown) that receives light and automatically turns on a light source (not shown). Is mounted in the lighting device mounting opening 12 formed on the top surface 10C.
器具本体10には、光を受光して光源(不図示)を自動的に点灯する自動点灯器(不図示)を接続可能な短絡キャップ7(shorting cap)が設けられており、この短絡キャップ7は、天面10Cに形成された点灯器取付開口部12に装着されている。 The
The
背面10Bには、支柱5を挿入するアーム用挿入孔15が設けられている。器具本体10を支柱5に取り付ける場合には、当該支柱5の先端部3が、器具本体10の背面10Bからアーム用挿入孔15に挿入され、クランプユニット26によってベースケース体20に固定される。
本実施形態では、クランプユニット26は、支柱5の先端部3を下方から押さえるブラケット26Aと、ブラケット26Aをベースケース体20に固定する固定具26B(本実施形態では、ボルト)とを備えて構成されている。なお、支柱5の器具本体10への固定手段は、この構成に限定されるものではない。 Anarm insertion hole 15 for inserting the support column 5 is provided on the back surface 10B. When the instrument body 10 is attached to the column 5, the tip 3 of the column 5 is inserted into the arm insertion hole 15 from the back surface 10 </ b> B of the instrument body 10 and fixed to the base case body 20 by the clamp unit 26.
In the present embodiment, theclamp unit 26 includes a bracket 26A that holds the tip 3 of the column 5 from below, and a fixture 26B (bolts in this embodiment) that fixes the bracket 26A to the base case body 20. Has been. In addition, the fixing means to the instrument main body 10 of the support | pillar 5 is not limited to this structure.
本実施形態では、クランプユニット26は、支柱5の先端部3を下方から押さえるブラケット26Aと、ブラケット26Aをベースケース体20に固定する固定具26B(本実施形態では、ボルト)とを備えて構成されている。なお、支柱5の器具本体10への固定手段は、この構成に限定されるものではない。 An
In the present embodiment, the
器具本体10は、支柱5の上下方向の取付角度を多段階に調整可能に構成されている。詳述すると、ベースケース体20はクランプ取付室27Bの天井を構成する天井面20Aを有し、この天井面20Aに、支柱5の上面と接触して支持する支持体30が所定の間隔で設けられている。複数の支持体30は、背面10Bから正面10Dに掛けて天井面20Aから下方への突出量を増加させて段状に形成されている。支柱5の上面を支持体30のいずれかに当接させることで、支柱5の上下方向の取付角度が多段階に調整できる。支柱5の取付角度を多段階に調整することで、器具本体10の上下方向の傾斜角度を多段階に調整することができる。
The instrument body 10 is configured so that the mounting angle in the vertical direction of the column 5 can be adjusted in multiple stages. Specifically, the base case body 20 has a ceiling surface 20A that constitutes the ceiling of the clamp mounting chamber 27B, and support bodies 30 that are in contact with and support the upper surface of the column 5 are provided on the ceiling surface 20A at predetermined intervals. It has been. The plurality of supports 30 are formed in a step shape by increasing the amount of protrusion downward from the ceiling surface 20A from the back surface 10B to the front surface 10D. By bringing the upper surface of the support column 5 into contact with any one of the supports 30, the vertical mounting angle of the support column 5 can be adjusted in multiple stages. By adjusting the attachment angle of the column 5 in multiple stages, the vertical inclination angle of the instrument body 10 can be adjusted in multiple stages.
また、アーム用挿入孔15には、図4及び図5に示すように、このアーム用挿入孔15をシールするブッシュ40が嵌め込まれ、このブッシュ40の挿入孔41に支柱5が挿入される。以下、このブッシュ40について詳細に説明する。
Further, as shown in FIGS. 4 and 5, a bush 40 for sealing the arm insertion hole 15 is fitted into the arm insertion hole 15, and the support column 5 is inserted into the insertion hole 41 of the bush 40. Hereinafter, the bush 40 will be described in detail.
図6は、ブッシュ40を示す斜視図である。また、図7はブッシュ40を示す図であり、図7(A)は平面図、図7(B)正面図、図7(C)は側面図、図7(D)は底面図である。図8は図7のVIII-VIII断面図であり、図9は図8のA部を拡大して示す図である。
ブッシュ40は、例えばゴム等の弾性素材を用いて形成されたパッキンであり、図6に示すように、環状に形成されている。ブッシュ40の外周面には、アーム用挿入孔15に嵌め込まれる嵌込溝42が周方向に亘って形成されている。嵌込溝42がアーム用挿入孔15に嵌め込まれることで、ブッシュ40の一端40A(軸方向内側)が器具本体10の内部に位置し、ブッシュ40の他端40B(軸方向内側)が器具本体10の外部に位置する。 FIG. 6 is a perspective view showing thebush 40. 7 is a view showing the bush 40, FIG. 7A is a plan view, FIG. 7B is a front view, FIG. 7C is a side view, and FIG. 7D is a bottom view. 8 is a cross-sectional view taken along line VIII-VIII in FIG. 7, and FIG. 9 is an enlarged view of a portion A in FIG.
Thebush 40 is a packing formed using an elastic material such as rubber, for example, and is formed in an annular shape as shown in FIG. A fitting groove 42 to be fitted into the arm insertion hole 15 is formed on the outer peripheral surface of the bush 40 in the circumferential direction. By fitting the fitting groove 42 into the arm insertion hole 15, one end 40A (axially inner side) of the bush 40 is positioned inside the instrument body 10, and the other end 40B (axially inner side) of the bush 40 is instrument body. 10 outside.
ブッシュ40は、例えばゴム等の弾性素材を用いて形成されたパッキンであり、図6に示すように、環状に形成されている。ブッシュ40の外周面には、アーム用挿入孔15に嵌め込まれる嵌込溝42が周方向に亘って形成されている。嵌込溝42がアーム用挿入孔15に嵌め込まれることで、ブッシュ40の一端40A(軸方向内側)が器具本体10の内部に位置し、ブッシュ40の他端40B(軸方向内側)が器具本体10の外部に位置する。 FIG. 6 is a perspective view showing the
The
ブッシュ40は、図7に示すように、支柱5を取り付ける平面状の取付部43を他端40B側に備え、取付部43には支柱5を挿入する挿入孔41Aが形成されている。この挿入孔41Aの径D1は、想定される外径のうち外径が最も小さい支柱5に合わせて設定される。挿入孔41Aは、ブッシュ40の中心に対して、器具本体10の上側に偏心して設けられている。
As shown in FIG. 7, the bush 40 includes a planar attachment portion 43 for attaching the support column 5 on the other end 40 </ b> B side, and an insertion hole 41 </ b> A for inserting the support column 5 is formed in the attachment portion 43. The diameter D1 of the insertion hole 41A is set according to the support column 5 having the smallest outer diameter among the assumed outer diameters. The insertion hole 41 </ b> A is eccentrically provided on the upper side of the instrument body 10 with respect to the center of the bush 40.
また、取付部43には、挿入孔41Aの周囲に、円環状の薄肉部44が複数(本実施形態では、3つ)形成されている。複数の薄肉部44は想定される支柱5の外径の数だけ形成され、複数の薄肉部44の径は想定される支柱5の外径に対応した径に設定される。複数の薄肉部44は、周上の最上部の一点P1が略一致するように、また、互いに接しないように形成されている。複数の薄肉部44を一点P1に近接させるため、各薄肉部44の幅を最上部ほど細くなるように形成している。薄肉部44のいずれかを千切ることにより、挿入孔41B~41Dがそれぞれ形成される。
ここで、薄肉部44によって形成される挿入孔41に、径が小さい順に41B~41Dと付すものとする。本実施形態では、4つの挿入孔41A~41Dの径D1~D4が、それぞれ27mm、35.7mm、40.8mm、51.4mmに設定されているが、挿入孔41A~41Dの数や径の大きさはこれに限定されるものではない。 In addition, a plurality of annular thin portions 44 (three in the present embodiment) are formed around theinsertion hole 41 </ b> A in the attachment portion 43. The plurality of thin portions 44 are formed in the number corresponding to the assumed outer diameter of the column 5, and the diameters of the plurality of thin portions 44 are set to a diameter corresponding to the assumed outer diameter of the column 5. The plurality of thin-walled portions 44 are formed so that the uppermost point P1 on the circumference substantially coincides with each other and does not contact each other. In order to make the plurality of thin portions 44 approach one point P1, the width of each thin portion 44 is formed so as to be thinner toward the top. By cutting any of the thin portions 44, insertion holes 41B to 41D are formed.
Here, it is assumed that the insertion holes 41 formed by the thin-walled portion 44 are denoted by 41B to 41D in ascending order of diameter. In this embodiment, the diameters D1 to D4 of the four insertion holes 41A to 41D are set to 27 mm, 35.7 mm, 40.8 mm, and 51.4 mm, respectively. The size is not limited to this.
ここで、薄肉部44によって形成される挿入孔41に、径が小さい順に41B~41Dと付すものとする。本実施形態では、4つの挿入孔41A~41Dの径D1~D4が、それぞれ27mm、35.7mm、40.8mm、51.4mmに設定されているが、挿入孔41A~41Dの数や径の大きさはこれに限定されるものではない。 In addition, a plurality of annular thin portions 44 (three in the present embodiment) are formed around the
Here, it is assumed that the insertion holes 41 formed by the thin-
取付部43には、図8及び図9に示すように、薄肉部44に比べて厚みのある肉厚部45が薄肉部44と交互に設けられている。本実施形態では、薄肉部44は、肉厚部45の厚さ方向中央Mより外側に配置されている。
薄肉部44は千切ることができる厚さに形成され、肉厚部45は薄肉部44を千切る際に損傷を受けない程度の厚さに形成される。ここで、薄肉部44の千切れ易さは、薄肉部44の厚さと、薄肉部44と肉厚部45の厚さの差に起因する。本実施形態では、薄肉部44と肉厚部45の厚さは、0.5mm、2mmにそれぞれ設定されているが、これに限定されるものではない。 As shown in FIGS. 8 and 9, theattachment portion 43 is provided with thick portions 45 that are thicker than the thin portions 44, alternately with the thin portions 44. In the present embodiment, the thin portion 44 is disposed outside the center M in the thickness direction of the thick portion 45.
Thethin portion 44 is formed to a thickness that can be cut off, and the thick portion 45 is formed to a thickness that does not cause damage when the thin portion 44 is cut. Here, the ease of tearing of the thin portion 44 is caused by the difference between the thickness of the thin portion 44 and the thickness of the thin portion 44 and the thick portion 45. In this embodiment, although the thickness of the thin part 44 and the thick part 45 is each set to 0.5 mm and 2 mm, it is not limited to this.
薄肉部44は千切ることができる厚さに形成され、肉厚部45は薄肉部44を千切る際に損傷を受けない程度の厚さに形成される。ここで、薄肉部44の千切れ易さは、薄肉部44の厚さと、薄肉部44と肉厚部45の厚さの差に起因する。本実施形態では、薄肉部44と肉厚部45の厚さは、0.5mm、2mmにそれぞれ設定されているが、これに限定されるものではない。 As shown in FIGS. 8 and 9, the
The
各薄肉部44には、少なくとも1つ(本実施形態では、1つ)の切り欠き部46が形成されている。切り欠き部46は、薄肉部44は千切る際の起点となる貫通部であり、本実施形態では、切り欠き部46は丸孔として形成されおり、この丸孔の径は破断の起点として機能するとともに水の表面張力が働く1.5mm程度に設定されている。なお、切り欠き部46の形状、大きさ及び数は、これに限定されず、例えば、三角孔や四角孔として形成されてもよいし、切れ目として形成されてもよい。
切り欠き部46は、一点P1と周方向反対側であって、薄肉部44の最下部に設けられている。 Eachthin portion 44 is formed with at least one notch 46 (in this embodiment, one). The cutout portion 46 is a through portion that becomes a starting point when the thin portion 44 is to be cut, and in this embodiment, the cutout portion 46 is formed as a round hole, and the diameter of the round hole functions as a starting point of fracture. In addition, the surface tension of water is set at about 1.5 mm. Note that the shape, size, and number of the notches 46 are not limited to this, and may be formed as triangular holes, square holes, or cut lines, for example.
Thecutout portion 46 is provided at the lowermost portion of the thin portion 44 on the opposite side to the one point P1 in the circumferential direction.
切り欠き部46は、一点P1と周方向反対側であって、薄肉部44の最下部に設けられている。 Each
The
図4及び図5に示すように、背面10Bの内面には、アーム用挿入孔15の下方位置に、位置決め部材29が一体に形成されている。また、ブッシュ40の外周面の一端40A側には、位置決め部材29に対応する位置及び形状で位置決め溝47が形成されている。本実施形態では、位置決め部材29は2つの角柱状の突出部として形成され、位置決め溝47は、位置決め部材29毎に設けられ、位置決め部材29を挿入可能に角溝に形成されている。ブッシュ40がアーム用挿入孔15に嵌め込まれた際には、位置決め部材29が位置決め溝47に挿入されてブッシュ40が周方向に位置決めされる。これらの位置決め部材29及び位置決め溝47を設けることで、ブッシュ40の周方向の角度ずれを防止でき、アーム用挿入孔15と支柱5との間のシール性を確保できる。
なお、位置決め部材29及び位置決め溝47の位置、数、形状は、これに限定されるものではない。 As shown in FIGS. 4 and 5, a positioningmember 29 is integrally formed on the inner surface of the back surface 10 </ b> B at a position below the arm insertion hole 15. A positioning groove 47 is formed on the outer end surface of the bush 40 on the one end 40 </ b> A side at a position and shape corresponding to the positioning member 29. In the present embodiment, the positioning member 29 is formed as two prismatic protrusions, and the positioning groove 47 is provided for each positioning member 29 and is formed into a rectangular groove so that the positioning member 29 can be inserted. When the bush 40 is fitted into the arm insertion hole 15, the positioning member 29 is inserted into the positioning groove 47 and the bush 40 is positioned in the circumferential direction. By providing the positioning member 29 and the positioning groove 47, the angular deviation in the circumferential direction of the bush 40 can be prevented, and the sealing performance between the arm insertion hole 15 and the support column 5 can be secured.
Note that the position, number, and shape of the positioningmember 29 and the positioning groove 47 are not limited thereto.
なお、位置決め部材29及び位置決め溝47の位置、数、形状は、これに限定されるものではない。 As shown in FIGS. 4 and 5, a positioning
Note that the position, number, and shape of the positioning
本実施形態では、道路灯1が支柱5の上下方向の取付角度を調整可能に構成されているため、アーム用挿入孔15は、支柱5の取付範囲を確保するように、器具本体10の上下方向に長い長丸状に形成されている。ブッシュ40も、アーム用挿入孔15と同様に器具本体10の上下方向に長い長丸状に形成されている。ブッシュ40を長丸状に形成することで、ブッシュ40の回転を抑制できるので、一点P1が支柱5の上面に確実に接触して、アーム用挿入孔15と支柱5との間のシール性を確保できるという効果も奏する。
また、ブッシュ40の外周面の他端40B側には、溝状の縮径部48が周方向に亘って形成されている。縮径部48を設けることで、取付部43を軸方向に対して傾斜させることができるので、支柱5の取付角度が調整されても、支柱5の取付角度に追従してブッシュ40の取付部43が移動でき、アーム用挿入孔15と支柱5との間のシール性を確保できる。 In the present embodiment, since theroad lamp 1 is configured to be able to adjust the mounting angle in the vertical direction of the column 5, the arm insertion hole 15 is arranged so that the mounting range of the column 5 can be secured. It is formed in a long round shape in the direction. Similarly to the arm insertion hole 15, the bush 40 is also formed in an oval shape that is long in the vertical direction of the instrument body 10. By forming the bush 40 in the shape of an elongated circle, the rotation of the bush 40 can be suppressed, so that the point P1 reliably contacts the upper surface of the column 5 and the sealing property between the arm insertion hole 15 and the column 5 is improved. There is also an effect that it can be secured.
Further, a groove-shaped reduceddiameter portion 48 is formed in the circumferential direction on the other end 40B side of the outer peripheral surface of the bush 40. Since the attachment portion 43 can be inclined with respect to the axial direction by providing the reduced diameter portion 48, the attachment portion of the bush 40 follows the attachment angle of the support column 5 even if the attachment angle of the support column 5 is adjusted. 43 can move, and the sealing performance between the arm insertion hole 15 and the support column 5 can be secured.
また、ブッシュ40の外周面の他端40B側には、溝状の縮径部48が周方向に亘って形成されている。縮径部48を設けることで、取付部43を軸方向に対して傾斜させることができるので、支柱5の取付角度が調整されても、支柱5の取付角度に追従してブッシュ40の取付部43が移動でき、アーム用挿入孔15と支柱5との間のシール性を確保できる。 In the present embodiment, since the
Further, a groove-shaped reduced
次に、器具本体10の支柱5への取付手順、及び、ブッシュ40の作用について説明する。
道路灯1は、ブッシュ40がアーム用挿入孔15に嵌め込まれて出荷される。道路灯1を支柱5に取り付ける作業は、地上から例えば5~8mの先端部3付近、すなわち高所での作業となる。
作業者は、高所において支柱5の先端部3の外径を確認し、この外径に合う位置の薄肉部44を千切る。この際、薄肉部44は千切ることができる厚さに形成されているため、ニッパやカッター等の鋭利な工具を使用することなく、薄肉部44を容易に千切ることができ、これにより、支柱5の外径に対応する挿入孔41を容易に形成できる。
支柱5の外径に合わせてブッシュを複数種用意する場合には、部品の管理及び部品の選択が煩雑になるが、本実施形態では、1種のブッシュで数種の外径の支柱5に対応できるので、部品点数を削減できるとともに、複数種の部品の管理や選択を省くことができる。また、本実施形態では、ブッシュ40を切断するための鋭利な工具を高所に持ち込む必要がないので、現場(高所)での道路灯1の取付作業が安全且つ容易になる。 Next, the procedure for attaching the instrumentmain body 10 to the column 5 and the operation of the bush 40 will be described.
Theroad lamp 1 is shipped with the bush 40 fitted into the arm insertion hole 15. The work of attaching the road light 1 to the column 5 is work in the vicinity of the tip 3 of, for example, 5 to 8 m from the ground, that is, at a high place.
The operator confirms the outer diameter of thetip portion 3 of the support column 5 at a high place, and cuts the thin portion 44 at a position matching the outer diameter. At this time, since the thin portion 44 is formed to a thickness that can be cut off, the thin portion 44 can be easily cut off without using a sharp tool such as a nipper or a cutter. The insertion hole 41 corresponding to the outer diameter of the column 5 can be easily formed.
When a plurality of types of bushes are prepared in accordance with the outer diameter of thesupport 5, the management of the parts and the selection of the parts become complicated, but in this embodiment, the support 5 having several types of outer diameters is formed with one type of bush. Since it is possible to cope with it, the number of parts can be reduced, and management and selection of plural kinds of parts can be omitted. Moreover, in this embodiment, since it is not necessary to bring a sharp tool for cutting the bush 40 to a high place, it is safe and easy to attach the road light 1 at the site (high place).
道路灯1は、ブッシュ40がアーム用挿入孔15に嵌め込まれて出荷される。道路灯1を支柱5に取り付ける作業は、地上から例えば5~8mの先端部3付近、すなわち高所での作業となる。
作業者は、高所において支柱5の先端部3の外径を確認し、この外径に合う位置の薄肉部44を千切る。この際、薄肉部44は千切ることができる厚さに形成されているため、ニッパやカッター等の鋭利な工具を使用することなく、薄肉部44を容易に千切ることができ、これにより、支柱5の外径に対応する挿入孔41を容易に形成できる。
支柱5の外径に合わせてブッシュを複数種用意する場合には、部品の管理及び部品の選択が煩雑になるが、本実施形態では、1種のブッシュで数種の外径の支柱5に対応できるので、部品点数を削減できるとともに、複数種の部品の管理や選択を省くことができる。また、本実施形態では、ブッシュ40を切断するための鋭利な工具を高所に持ち込む必要がないので、現場(高所)での道路灯1の取付作業が安全且つ容易になる。 Next, the procedure for attaching the instrument
The
The operator confirms the outer diameter of the
When a plurality of types of bushes are prepared in accordance with the outer diameter of the
なお、先にブッシュ40の穴径を支柱5の外径に合わせておけば、高所でのブッシュ40の切断作業は不要となる。しかし、支柱5の外径とブッシュ40の穴径とが合っていなかった場合、ブッシュ40の穴径が大きすぎると、道路灯1をもう一度地上に降ろして、新しいブッシュ40を道路灯1に取り付ける作業が必要となる。
In addition, if the hole diameter of the bush 40 is matched with the outer diameter of the column 5 first, the cutting work of the bush 40 at a high place becomes unnecessary. However, if the outer diameter of the column 5 does not match the hole diameter of the bush 40 and the hole diameter of the bush 40 is too large, the road lamp 1 is lowered to the ground once again and a new bush 40 is attached to the road lamp 1. Work is required.
このブッシュ40は、千切ることができる厚さの薄肉部44と、この薄肉部44よりも肉厚の肉厚部45とを備えて構成されている。この薄肉部44と肉厚部45の厚さの差により、破断が必要な薄肉部44以外の部分を千切ることなく、薄肉部44を容易に千切ることができる。
また、薄肉部44には切り欠き部46が形成されているため、薄肉部44が容易に千切れなかったり、無理に切ろうとして破断が必要な薄肉部44以外の部分が切れてしまったりすることを防止できる。また、切り欠き部46を孔として形成したため、切れ目として形成する場合に比べ、切り欠き部46を見えやすくすることができる。さらに、切り欠き部46を孔状に形成することで、例えば、道路灯1の取付作業に用いるドライバー等を切り欠き部46に差し込むこともできるので、薄肉部44の破断を容易に開始できる。 Thebush 40 includes a thin portion 44 having a thickness that can be cut off, and a thick portion 45 that is thicker than the thin portion 44. Due to the difference in thickness between the thin wall portion 44 and the thick wall portion 45, the thin wall portion 44 can be easily cut off without cutting off portions other than the thin wall portion 44 that needs to be broken.
Further, since the notchedportion 46 is formed in the thin portion 44, the thin portion 44 is not easily cut off, or a portion other than the thin portion 44 that needs to be broken is cut off forcibly. Can be prevented. Moreover, since the notch part 46 was formed as a hole, the notch part 46 can be made visible more easily than the case where it forms as a cut | interruption. Furthermore, by forming the notch 46 in the shape of a hole, for example, a driver or the like used for the work of attaching the road lamp 1 can be inserted into the notch 46, so that the thin portion 44 can be easily started to break.
また、薄肉部44には切り欠き部46が形成されているため、薄肉部44が容易に千切れなかったり、無理に切ろうとして破断が必要な薄肉部44以外の部分が切れてしまったりすることを防止できる。また、切り欠き部46を孔として形成したため、切れ目として形成する場合に比べ、切り欠き部46を見えやすくすることができる。さらに、切り欠き部46を孔状に形成することで、例えば、道路灯1の取付作業に用いるドライバー等を切り欠き部46に差し込むこともできるので、薄肉部44の破断を容易に開始できる。 The
Further, since the notched
複数の挿入孔を同心円状に形成した場合、外径が異なる支柱5を支持するためには、例えば支柱5の上下両側に一対のクランプユニットを配置して支柱5を支持する必要がある。
これに対し、本実施形態では、複数の挿入孔41を周上の一点P1が略一致するように形成したため、外径が異なる支柱5を、支柱5の上面の位置を変えずに器具本体10に取り付けられるので、例えば、1つのクランプユニット26によって支柱5を支持できる。
なお、複数の薄肉部44は、破断を必要とする薄肉部44以外の部分の破断を防止するために、一点P1を完全に一致させて形成することができず、複数の薄肉部44間にずれδが生じている。しかしながら、ブッシュ40はゴム等の弾性素材によって形成されているため、挿入孔41に支柱5を挿入すると、素材の弾性によって挿入孔41が変形し、このずれδは解消されることとなる。 When a plurality of insertion holes are formed concentrically, in order to support thecolumns 5 having different outer diameters, for example, it is necessary to support the columns 5 by arranging a pair of clamp units on the upper and lower sides of the column 5.
On the other hand, in the present embodiment, since the plurality of insertion holes 41 are formed so that one point P1 on the circumference substantially coincides, thecolumn 5 having a different outer diameter can be formed without changing the position of the upper surface of the column 5. For example, the column 5 can be supported by one clamp unit 26.
The plurality ofthin portions 44 cannot be formed by completely matching one point P1 in order to prevent breakage of portions other than the thin portions 44 that need to be broken. Deviation δ occurs. However, since the bush 40 is formed of an elastic material such as rubber, when the support column 5 is inserted into the insertion hole 41, the insertion hole 41 is deformed by the elasticity of the material, and this deviation δ is eliminated.
これに対し、本実施形態では、複数の挿入孔41を周上の一点P1が略一致するように形成したため、外径が異なる支柱5を、支柱5の上面の位置を変えずに器具本体10に取り付けられるので、例えば、1つのクランプユニット26によって支柱5を支持できる。
なお、複数の薄肉部44は、破断を必要とする薄肉部44以外の部分の破断を防止するために、一点P1を完全に一致させて形成することができず、複数の薄肉部44間にずれδが生じている。しかしながら、ブッシュ40はゴム等の弾性素材によって形成されているため、挿入孔41に支柱5を挿入すると、素材の弾性によって挿入孔41が変形し、このずれδは解消されることとなる。 When a plurality of insertion holes are formed concentrically, in order to support the
On the other hand, in the present embodiment, since the plurality of insertion holes 41 are formed so that one point P1 on the circumference substantially coincides, the
The plurality of
切り欠き部46は、薄肉部44の中心に対して一点P1と反対側、すなわち、一点P1の位置に比べて複数の薄肉部44が離間する部分に配置されているため、破断する薄肉部44に隣接する薄肉部44を破断してしまうことを抑制できる。
切り欠き部46は、薄肉部44の最下部に設けられているため、切り欠き部46が支柱5の下方に位置することとなるので、切り欠き部46への異物の侵入を防止できる。また、本実施形態では、各薄肉部44の幅を最下部ほど太くなるように形成されているため、切り欠き部46を薄肉部44の最下部に設けることで、切り欠き部46の設計自由度を向上できる。 Thenotch portion 46 is disposed on the opposite side to the point P1 with respect to the center of the thin portion 44, that is, at a portion where the plurality of thin portions 44 are separated from the position of the single point P1, and thus the thin portion 44 that breaks. It can suppress that the thin part 44 adjacent to breaks.
Since thenotch 46 is provided at the lowermost part of the thin portion 44, the notch 46 is positioned below the support column 5, so that foreign matter can be prevented from entering the notch 46. Further, in the present embodiment, since the width of each thin portion 44 is formed so as to become thicker at the lowermost portion, the notch portion 46 can be designed at the lowermost portion by providing the cutout portion 46 at the lowermost portion. The degree can be improved.
切り欠き部46は、薄肉部44の最下部に設けられているため、切り欠き部46が支柱5の下方に位置することとなるので、切り欠き部46への異物の侵入を防止できる。また、本実施形態では、各薄肉部44の幅を最下部ほど太くなるように形成されているため、切り欠き部46を薄肉部44の最下部に設けることで、切り欠き部46の設計自由度を向上できる。 The
Since the
以上説明したように、本実施形態によれば、ブッシュ40は、外径が異なる支柱5を挿入可能な挿入孔41を有するブッシュであって、支柱5の外径に対応する位置に環状の薄肉部44を設け、薄肉部44を千切ることで径が異なる複数の挿入孔41を形成可能に構成した。この構成により、鋭利な工具を用いることなく、外径が異なる支柱5を挿入できる。
As described above, according to the present embodiment, the bush 40 is a bush having the insertion hole 41 into which the support column 5 having a different outer diameter can be inserted, and has an annular thin wall at a position corresponding to the outer diameter of the support column 5. A plurality of insertion holes 41 having different diameters can be formed by providing the portion 44 and cutting the thin portion 44 into pieces. With this configuration, it is possible to insert the column 5 having a different outer diameter without using a sharp tool.
また、本実施形態によれば、複数の挿入孔41を周上の一点P1が略一致するように形成する構成とした。この構成により、支柱5の外径が異なっても、支柱5の器具本体10への固定位置を略同一にすることができるので、支柱5の固定構造を簡素化できる。
Further, according to the present embodiment, the plurality of insertion holes 41 are formed so that the circumferential point P1 substantially coincides. Even if the outer diameter of the support | pillar 5 differs by this structure, since the fixing position to the instrument main body 10 of the support | pillar 5 can be made substantially the same, the fixing structure of the support | pillar 5 can be simplified.
また、本実施形態によれば、薄肉部44のそれぞれに破断の起点となる切り欠き部46を形成する構成としたため、薄肉部44をより容易に千切ることができるとともに、破断を必要とする薄肉部44以外の部分の破断を抑制できる。
Moreover, according to this embodiment, since it was set as the structure which forms the notch part 46 used as the starting point of a fracture | rupture in each thin part 44, while being able to cut the thin part 44 more easily, a fracture | rupture is required. Breakage of portions other than the thin portion 44 can be suppressed.
また、本実施形態によれば、切り欠き部46を薄肉部44の中心に対して一点P1と反対側に形成する構成とした。この構成により、複数の薄肉部44が比較的離間する部分に力を加える切り欠き部46を配置できるので、破断を必要とする薄肉部44以外の薄肉部44を破断してしまうことを抑制できる。
Further, according to the present embodiment, the notch 46 is formed on the opposite side of the point P1 with respect to the center of the thin portion 44. With this configuration, it is possible to arrange the notched portion 46 that applies a force to a portion where the plurality of thin portions 44 are relatively separated from each other, and therefore, it is possible to suppress breaking of the thin portions 44 other than the thin portion 44 that requires breaking. .
<第2実施形態>
第1実施形態では、ブッシュ40の取付部43を平面状に形成したが、第2実施形態では、ブッシュ140の取付部143を段状に形成している。なお、第2実施形態では、第1実施形態と同一部分には同一の符号を付して説明を省略する。
図10は、変形例に係るブッシュ140を示す斜視図である。図11はブッシュ140を示す図であり、図11(A)は平面図、図11(B)正面図、図11(C)は側面図、図11(D)は底面図である。図12は図11のXII-XII断面図であり、図13は図12のB部を拡大して示す図である。
ブッシュ140は、例えばゴム等の弾性素材を用いて形成されたパッキンであり、図10乃至図13に示すように、長丸状に形成されている。ブッシュ140の外周面の一端40A側にはアーム用挿入孔15に嵌め込まれる嵌込溝42が、ブッシュ140の外周面の他端40B側には縮径部48が、周方向に亘って形成されている。また、ブッシュ40の外周面の一端40A側には、位置決め部材29に対応する位置及び形状で位置決め溝47が形成されている。 Second Embodiment
In the first embodiment, the mountingportion 43 of the bush 40 is formed in a planar shape, but in the second embodiment, the mounting portion 143 of the bush 140 is formed in a step shape. In the second embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.
FIG. 10 is a perspective view showing abush 140 according to a modification. 11A and 11B are views showing the bush 140. FIG. 11A is a plan view, FIG. 11B is a front view, FIG. 11C is a side view, and FIG. 11D is a bottom view. 12 is a cross-sectional view taken along the line XII-XII of FIG. 11, and FIG. 13 is an enlarged view of a portion B of FIG.
Thebush 140 is a packing formed using an elastic material such as rubber, for example, and is formed in an oval shape as shown in FIGS. 10 to 13. A fitting groove 42 to be fitted into the arm insertion hole 15 is formed on one end 40A side of the outer peripheral surface of the bush 140, and a reduced diameter portion 48 is formed on the other end 40B side of the outer peripheral surface of the bush 140 in the circumferential direction. ing. A positioning groove 47 is formed on the outer end surface of the bush 40 on the one end 40 </ b> A side at a position and shape corresponding to the positioning member 29.
第1実施形態では、ブッシュ40の取付部43を平面状に形成したが、第2実施形態では、ブッシュ140の取付部143を段状に形成している。なお、第2実施形態では、第1実施形態と同一部分には同一の符号を付して説明を省略する。
図10は、変形例に係るブッシュ140を示す斜視図である。図11はブッシュ140を示す図であり、図11(A)は平面図、図11(B)正面図、図11(C)は側面図、図11(D)は底面図である。図12は図11のXII-XII断面図であり、図13は図12のB部を拡大して示す図である。
ブッシュ140は、例えばゴム等の弾性素材を用いて形成されたパッキンであり、図10乃至図13に示すように、長丸状に形成されている。ブッシュ140の外周面の一端40A側にはアーム用挿入孔15に嵌め込まれる嵌込溝42が、ブッシュ140の外周面の他端40B側には縮径部48が、周方向に亘って形成されている。また、ブッシュ40の外周面の一端40A側には、位置決め部材29に対応する位置及び形状で位置決め溝47が形成されている。 Second Embodiment
In the first embodiment, the mounting
FIG. 10 is a perspective view showing a
The
ブッシュ140は、薄肉部144がブッシュ140の軸方向外側に突出して側壁部を形成しており、薄肉部144と、ブッシュ140の径方向に平面状に延在する肉厚部145とが交互に配置されて、取付部143が段状に形成されている。
取付部143には支柱5を挿入する挿入孔141Aが形成され、この挿入孔141Aの径E1は、想定される外径のうち外径が最も小さい支柱5に合わせて設定される。挿入孔141Aは、ブッシュ140の中心に対して、器具本体10の上側に偏心して設けられている。 In thebush 140, the thin wall portion 144 protrudes outward in the axial direction of the bush 140 to form a side wall portion, and the thin wall portion 144 and the thick wall portion 145 extending in a planar shape in the radial direction of the bush 140 are alternately arranged. The mounting portion 143 is formed in a step shape.
Aninsertion hole 141A for inserting the column 5 is formed in the mounting portion 143, and the diameter E1 of the insertion hole 141A is set according to the column 5 having the smallest outer diameter among the assumed outer diameters. The insertion hole 141 </ b> A is eccentrically provided on the upper side of the instrument body 10 with respect to the center of the bush 140.
取付部143には支柱5を挿入する挿入孔141Aが形成され、この挿入孔141Aの径E1は、想定される外径のうち外径が最も小さい支柱5に合わせて設定される。挿入孔141Aは、ブッシュ140の中心に対して、器具本体10の上側に偏心して設けられている。 In the
An
複数の薄肉部144は想定される支柱5の外径の数だけ形成され、複数の薄肉部144の径は想定される支柱5の外径に対応した径に設定される。複数の薄肉部44は、周上の最上部の一点P2が一致するように形成されている。本実施形態では、薄肉部44の幅は周方向に同一である。薄肉部144のいずれかを千切ることにより、挿入孔141B~141Dがそれぞれ形成される。
ここで、薄肉部144によって形成される挿入孔141に、径が小さい順に141B~141Dと付すものとする。本実施形態では、4つの挿入孔141A~141Dの径E1~E4が、それぞれ32mm、42mm、48mm、60.5mmに設定されているが、挿入孔141A~141Dの数や径の大きさはこれに限定されるものではない。
薄肉部144と肉厚部145の厚さは、第1実施形態と同様に、0.5mm、2mmにそれぞれ設定されているが、これに限定されるものではない。 The plurality ofthin wall portions 144 are formed by the number of outer diameters of the assumed support columns 5, and the diameters of the plurality of thin wall portions 144 are set to a diameter corresponding to the assumed outer diameter of the support columns 5. The plurality of thin portions 44 are formed so that the uppermost point P2 on the circumference coincides. In the present embodiment, the width of the thin portion 44 is the same in the circumferential direction. By cutting any of the thin portions 144, insertion holes 141B to 141D are formed.
Here, it is assumed that 141B to 141D are attached to theinsertion hole 141 formed by the thin portion 144 in order of decreasing diameter. In this embodiment, the diameters E1 to E4 of the four insertion holes 141A to 141D are set to 32 mm, 42 mm, 48 mm, and 60.5 mm, respectively. However, the number and size of the insertion holes 141A to 141D are the same. It is not limited to.
The thicknesses of thethin portion 144 and the thick portion 145 are set to 0.5 mm and 2 mm, respectively, as in the first embodiment, but are not limited thereto.
ここで、薄肉部144によって形成される挿入孔141に、径が小さい順に141B~141Dと付すものとする。本実施形態では、4つの挿入孔141A~141Dの径E1~E4が、それぞれ32mm、42mm、48mm、60.5mmに設定されているが、挿入孔141A~141Dの数や径の大きさはこれに限定されるものではない。
薄肉部144と肉厚部145の厚さは、第1実施形態と同様に、0.5mm、2mmにそれぞれ設定されているが、これに限定されるものではない。 The plurality of
Here, it is assumed that 141B to 141D are attached to the
The thicknesses of the
各薄肉部144には、破断の起点となる切り欠き部46を少なくとも1つ(本実施形態では、1つ)形成されており、この切り欠き部146は、薄肉部144の中心に対して一点P2と反対側であって、薄肉部144の最下部に設けられている。
Each thin-walled portion 144 is formed with at least one cutout portion 46 (one in the present embodiment) serving as a starting point of breakage, and this cutout portion 146 is one point with respect to the center of the thin-walled portion 144. It is on the opposite side to P2 and is provided at the lowermost portion of the thin portion 144.
このように、本実施形態によれば、第1実施形態と同様の効果を奏する。また、本実施形態では、複数の挿入孔141を多段に形成する構成とした。この構成により、複数の挿入孔141を一点P2でより一致させることができるため、支柱5の外径が異なっても、挿入孔141を支柱5の位置により正確に合わせることができるので、アーム用挿入孔15と支柱5との間のシール性をより確保できる。
Thus, according to the present embodiment, the same effects as in the first embodiment can be obtained. In the present embodiment, a plurality of insertion holes 141 are formed in multiple stages. With this configuration, since the plurality of insertion holes 141 can be made to coincide with each other at one point P2, even if the outer diameter of the column 5 is different, the insertion hole 141 can be more accurately matched with the position of the column 5, The sealing property between the insertion hole 15 and the column 5 can be further ensured.
但し、上述の実施形態は本発明の一態様であり、本発明の趣旨を逸脱しない範囲において適宜変更可能であるのは勿論である。
例えば、上述の実施形態では、ブッシュ40,140を長丸状に形成したが、ブッシュ40,140の形状はこれに限定されるものではない。例えば、支柱5の取付角度を調整しないものであれば、ブッシュ40,140を円形状に形成してもよい。 However, the above-described embodiment is an aspect of the present invention, and it is needless to say that the embodiment can be appropriately changed without departing from the gist of the present invention.
For example, in the above-described embodiment, the bushes 40 and 140 are formed in an oval shape, but the shape of the bushes 40 and 140 is not limited to this. For example, the bushes 40 and 140 may be formed in a circular shape as long as the mounting angle of the column 5 is not adjusted.
例えば、上述の実施形態では、ブッシュ40,140を長丸状に形成したが、ブッシュ40,140の形状はこれに限定されるものではない。例えば、支柱5の取付角度を調整しないものであれば、ブッシュ40,140を円形状に形成してもよい。 However, the above-described embodiment is an aspect of the present invention, and it is needless to say that the embodiment can be appropriately changed without departing from the gist of the present invention.
For example, in the above-described embodiment, the
また、上述の実施形態では、挿入孔41,141をブッシュ40,140の中心に対して偏心させていたが、挿入孔41,141はブッシュ40,140の中心に配置されてもよい。この場合、支柱5の外径に応じて、支柱5の器具本体10に対する取付位置を変更すればよい。
In the above-described embodiment, the insertion holes 41 and 141 are eccentric with respect to the centers of the bushes 40 and 140. However, the insertion holes 41 and 141 may be disposed at the centers of the bushes 40 and 140. In this case, what is necessary is just to change the attachment position with respect to the instrument main body 10 of the support | pillar 5 according to the outer diameter of the support | pillar 5. FIG.
また、上述の実施形態では、器具本体10をアーム型の支柱5に取り付けていたが、器具本体10を先端部3が鉛直方向に真っ直ぐに延びるポール型(ストレート型とも呼ばれる)の支柱に取り付けてもよい。この場合、ポール型の支柱を挿入するポール用挿入孔は、例えば一端11A近傍の底面10Aに形成すればよい。また、道路灯1をアーム型の支柱5及びポール型の支柱の両方に取り付け可能に構成してもよい。
In the above-described embodiment, the instrument main body 10 is attached to the arm-type support column 5. However, the instrument main body 10 is attached to a pole-type support column (also referred to as a straight type) in which the distal end portion 3 extends straight in the vertical direction. Also good. In this case, a pole insertion hole for inserting a pole-shaped support may be formed on the bottom surface 10A near the one end 11A, for example. Further, the road lamp 1 may be configured to be attachable to both the arm-type column 5 and the pole-type column.
また、上述の実施形態では、光源をLED等の発光素子として説明したが、光源は発光素子に限定されるものではなく、ランプ等種々の光源を用いることができる。
In the above-described embodiment, the light source is described as a light emitting element such as an LED, but the light source is not limited to the light emitting element, and various light sources such as a lamp can be used.
また、上述の実施形態では、照明器具を道路灯1として説明したが、照明器具は、道路灯に限らず、支柱の先端部に器具本体が支持される照明器具であれば、例えば街灯等の任意の照明器具に適用可能である。
また、本発明のブッシュ40,140は、照明器具に限らず、種々の装置に適用可能である。 Moreover, in the above-mentioned embodiment, although the lighting fixture was demonstrated as theroad light 1, if a lighting fixture is not only a road light but a lighting fixture with which a fixture main body is supported by the front-end | tip part of a support | pillar, for example, a street light etc. Applicable to any lighting fixture.
Moreover, the bushes 40 and 140 of the present invention are applicable not only to lighting equipment but also to various devices.
また、本発明のブッシュ40,140は、照明器具に限らず、種々の装置に適用可能である。 Moreover, in the above-mentioned embodiment, although the lighting fixture was demonstrated as the
Moreover, the
1 道路灯(照明器具)
5 支柱(パイプ)
10 灯具本体
40,140 ブッシュ
41,141 挿入孔
44,144 薄肉部
46 切り欠き部
P1,P2 一点 1 road lights (lighting fixtures)
5 Prop (pipe)
10 Lamp body 40,140 Bushing 41,141 Insertion hole 44,144Thin part 46 Notch P1, P2 One point
5 支柱(パイプ)
10 灯具本体
40,140 ブッシュ
41,141 挿入孔
44,144 薄肉部
46 切り欠き部
P1,P2 一点 1 road lights (lighting fixtures)
5 Prop (pipe)
10 Lamp body 40,140 Bushing 41,141 Insertion hole 44,144
Claims (6)
- 外径が異なるパイプを挿入可能な挿入孔を有するブッシュであって、
前記パイプの外径に対応する位置に環状の薄肉部を複数設け、薄肉部を千切ることで径が異なる挿入孔を形成可能に構成したことを特徴とするブッシュ。 A bush having an insertion hole into which pipes having different outer diameters can be inserted,
A bush characterized in that a plurality of annular thin portions are provided at positions corresponding to the outer diameter of the pipe, and an insertion hole having a different diameter can be formed by cutting the thin portion. - 複数の前記挿入孔を周上の一点が略一致するように形成したことを特徴とする請求項1に記載のブッシュ。 The bush according to claim 1, wherein the plurality of insertion holes are formed so that one point on the circumference substantially coincides.
- 前記薄肉部のそれぞれに破断の起点となる切り欠き部を形成したことを特徴とする請求項1又は2に記載のブッシュ。 The bush according to claim 1 or 2, wherein a cutout portion serving as a starting point of breakage is formed in each of the thin-walled portions.
- 前記切り欠き部を前記薄肉部の中心に対して前記一点と反対側に形成したことを特徴とする請求項3に記載のブッシュ。 The bush according to claim 3, wherein the notch is formed on the opposite side to the one point with respect to the center of the thin portion.
- 複数の前記挿入孔を多段に形成したことを特徴とする請求項1乃至4のいずれかに記載のブッシュ。 The bush according to any one of claims 1 to 4, wherein a plurality of the insertion holes are formed in multiple stages.
- 灯具本体をパイプに支持した照明器具において、
外径が異なるパイプを挿入可能な挿入孔を有するブッシュを備え、
前記ブッシュを、前記パイプの外径に対応する位置に環状の薄肉部を複数設けて、薄肉部を千切ることで径が異なる挿入孔を形成可能に構成したことを特徴とする照明器具。 In the lighting fixture that supported the lamp body on the pipe,
A bush having an insertion hole into which pipes having different outer diameters can be inserted,
A lighting apparatus comprising: a plurality of annular thin portions provided at positions corresponding to the outer diameter of the pipe, and the thin portions being cut to form insertion holes having different diameters.
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Cited By (1)
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JP2020527016A (en) * | 2017-07-13 | 2020-08-31 | アイコテック・プロジェクト・ゲーエムベーハー・ウント・コー・カーゲー | Distortion reduction bushing |
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JPH0686230U (en) * | 1993-05-24 | 1994-12-13 | 都孝 溝部 | Cable bush |
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