JP5303016B2 - Gaze guidance light - Google Patents

Description

  The present invention relates to a self-luminous guide light that is installed along a shoulder or the like of a curved road to guide a vehicle driver's line of sight by lighting and displaying the road alignment.

On the shoulders of roads that have been curved in the past, line-of-sight guide lights that display the alignment of the roads are installed at predetermined intervals along the road shoulders. Among such line-of-sight guide lamps, a self-luminous lamp described in Patent Document 1 is known.
This line-of-sight guide lamp includes a light-emitting unit incorporating a light source, and a support base fixed to a road shoulder or the like by an anchor bolt. The light emitting unit is installed on a support base via a support column at a predetermined height corresponding to the driver's line of sight. Nipples are provided at the lower end of the light emitting unit and the upper end of the support base. The upper and lower ends of the closely wound coil spring are screwed into the spiral grooves of the upper and lower nipples, respectively, and the light emitting portion is tiltably connected to the support base in the front-rear and left-right directions. The closely coiled coil spring is covered with a flexible waterproof tube. A pair of upper and lower cup-shaped caps are attached so as to cover each nipple via the waterproof tube. In such a configuration, the closely wound coil spring elastically supports the light emitting portion, and is tilted in the front-rear and left-right directions due to its elastic deformation to absorb the impact at the time of contact and collision.

JP 2001-323420 A

The line-of-sight guide light needs to be fixed by adjusting the angle around the column axis of the light emitting unit so as to correspond to the line of sight of the driver of the vehicle traveling on the curved road. However, the above-mentioned conventional line-of-sight guide lamp is not easy to adjust and fix the angle around the support shaft, and easily breaks due to overtightening of the nut for fixing around the shaft.
Therefore, the invention according to this application is a line-of-sight guide lamp in which a closely wound coil spring elastically supports a lamp body and can absorb a shock at the time of contact and collision by tilting and restoring in the front-rear and left-right directions by its elastic deformation. Therefore, an object of the present invention is to provide a line-of-sight guide lamp that is easy to adjust and fix the angle around the support shaft and is less susceptible to damage due to overtightening of the fixing nut.
In addition, an object of the present invention is to provide a line-of-sight guide lamp that does not cause electric corrosion even when the lamp body and the first nipple are made of different metals.
Another object of the invention of this application is to provide a line-of-sight guide lamp that can reliably protect a penetrating power cable and at the same time effectively prevent plastic deformation due to repeated folding of a closely wound coil spring.

Hereinafter, the present invention will be described with reference to the accompanying drawings, but the present invention is not limited thereto.
The line-of-sight guide lamp 1 of the invention according to this application for solving the above-described problem is a line-of-sight guide lamp that is installed on a support along a road shoulder or the like in order to turn on and display the alignment of the road. The lamp body 2 having the light emitting portion 4, the first nipple 6 connected to the lower part of the lamp body 2, the second nipple 8 connected to the upper part of the support pipe P, and the nipple 8 A third nipple 9 connected to the upper portion of the first nipple, a fixed cover 10 for fixing the second nipple 8 and the third nipple 9, and an intermediate between the first nipple 6 and the third nipple 9. The tightly wound coil spring 7 and a flexible waterproof tube 11 covering the tightly wound coil spring 7 are provided. The first nipple 6 has a spring receiving tube portion 17 in which a spiral groove 20 is formed on the outer periphery of the lower portion. The third nipple 9 is connected to the upper part of the second nipple 8 so that the relative rotation angle around the axis can be adjusted, and has a spring receiving cylinder part 33 in which a spiral groove 37 is formed on the outer periphery of the upper part. The densely wound coil spring 7 is screwed into the spiral groove 20 of the first nipple 6 at the upper part and is screwed into the spiral groove 37 of the third nipple 9 at the lower part. The second nipple 8 includes a male screw cylinder portion 25 screwed onto the upper portion of the support pipe P, an operating rod portion 27 provided on the upper portion of the male screw cylinder portion 25, and an outer periphery provided on the upper portion of the operation rod portion 27. And a connecting flange portion 28 having an annular thrust engaging portion 30 formed of a large number of ridges and depressions formed radially at predetermined rotation angle increments. The third nipple 9 has a lower end portion of a connecting collar portion 31 having an annular corresponding thrust engaging portion 34 formed of a large number of concavo-convex ridges engaged with the thrust engaging portion 30 of the second nipple 8 on the lower end surface. It further comprises. The fixed cover 10 has a female screw cylinder portion 38 opened downward so as to be screwed to the outer peripheral screw portion 26 of the second nipple 8, and a lower surface located at the upper end portion of the female screw cylinder portion 38. An inner flange portion 39 abutting on the upper surface of the connection flange portion 28 and a central opening 41 penetrating upward from the connection flange portion 28 of the third nipple 9, and the internal thread cylinder portion 38 is connected to the second nipple. The third nipple 9 and the second nipple 8 are configured to be fastened and fixed in the thrust direction by being screwed into the outer peripheral threaded portion 26 of the Eight.

  According to the line-of-sight guide lamp of the invention according to this application, it is possible to prevent damage by absorbing the impact at the time of contact and collision by tilting and restoring in the longitudinal and lateral directions by elastic deformation of the closely wound coil spring, Angle adjustment and fixing are easy and reliable, and there is an effect that damage due to overtightening of the fixing nut is less likely to occur.

It is a front view of the gaze guidance lamp concerning the present invention. It is a vertical side view of the gaze guidance lamp of FIG. It is the front view which cut | disconnected a part of 1st nipple in the gaze guidance lamp of FIG. It is the front view which cut | disconnected a part of bushing in the gaze guidance lamp of FIG. It is the front view which cut | disconnected a part of 2nd nipple in the gaze guidance lamp of FIG. It is a top view of the 2nd nipple in the gaze guidance lamp of FIG. It is the front view which cut | disconnected a part of 3rd nipple in the gaze guidance lamp of FIG. It is a top view of the 3rd nipple in the gaze guidance lamp of FIG. It is a bottom view of the 3rd nipple in the gaze guidance lamp of FIG. It is the front view which cut | disconnected a part of fixed cover in the gaze guidance lamp of FIG. It is a bottom view of the fixed cover in the line-of-sight guide light of FIG.

Embodiments of the present invention will be described with reference to the drawings.
In FIG. 1, a line-of-sight guide lamp 1 includes a lamp body 2 and elastic struts 3 that support the lamp body 2 so that it can be tilted back and forth and left and right, and a lower end portion of the strut 3 is attached to a concrete foundation (not shown). It is fixed to the fixed support pipe P. The lamp body 2 includes a light emitting portion 4, and a connecting tube portion 5 is integrally projected at the lower center thereof. The power cable C penetrates through the support column 3 and the connecting cylinder portion 5.

  In FIG. 2, the column 3 is connected to the lower end of the connection cylinder portion 5, and includes a first nipple 6, a closely coiled coil spring 7, a second nipple 8, a third nipple 9, a fixed cover 10, and a waterproof tube 11. It has.

  2 and 3, a male screw cylinder 12 for connection is formed at the lower end of the connection cylinder 5 of the lamp body. The first nipple 6 is connected to the male screw cylinder 12 via a bushing 13 made of synthetic resin. In FIG. 3, the first nipple 6 includes a screw cylinder portion 15 having an inner peripheral screw 14 at an upper portion thereof, and a spring receiving cylinder portion 17 via a cylindrical tube receiver portion 16 at a lower portion thereof. The tube receiving portion 16 has a smaller diameter than the screw cylinder portion 15 and extends downward via a step portion 18. The spring receiving cylinder portion 17 has a smaller diameter than the tube receiving portion 16 and extends downward through the step portion 19. A spiral groove 20 is formed on the outer periphery of the spring receiving cylinder portion 17. The screw hole 48 is used for screwing a set screw to prevent the bushing 13 described later from rotating.

  2 and 4, the bushing 13 includes an inner peripheral screw 21 that is screwed into the male screw cylindrical portion 12 of the lamp body 2, and a screw cylindrical portion 23 that has an outer peripheral screw 22 that is screwed into the first nipple 6. And a flange portion 24 provided at the upper end portion of the screw tube portion 23. The flange portion 24 is interposed between the male screw cylinder portion 12 and the first nipple 6 and electrically insulates between the two. For example, when the lamp body 2 is made of an aluminum alloy and the nipple 6 is made of stainless steel, when both are made of different metals, the bushing 13 can avoid electric corrosion between the two.

  2, 5, and 6, the second nipple 8 has a male screw cylinder portion 25 having an outer peripheral screw 26 screwed into the upper portion of the support pipe P, and a hexagonal portion provided on the upper portion of the male screw cylinder portion 25. An operating rod portion 27 and a cylindrical connecting rod portion 28 provided on the upper portion of the operating rod portion 27 are provided. The connecting flange portion 28 has a threaded portion 29 on the outer periphery, and an annular thrust engaging portion 30 formed of a large number of concavo-convex ridges formed radially at a predetermined rotation angle increment on the upper end surface.

  2 and 7 to 9, the third nipple 9 has a connecting collar 31 at the lower end that is joined to the upper portion of the second nipple 8 so that the relative rotation angle around the axis can be adjusted. The tube receiving portion 32 has a spring receiving cylindrical portion 33 at the upper portion. The connecting collar portion 31 has an annular corresponding thrust engaging portion 34 formed of a number of concavo-convex ridges engaged with the thrust engaging portion 30 of the second nipple 8 on the lower end surface. By mutually engaging the thrust engaging portions 30 and 34 of the nipples 8 and 9 by shifting the concave and convex stripes one by one, the mutual angle can be changed by 2.5 ° around the axis. The cylindrical tube receiving portion 32 has a smaller diameter than the connection flange portion 31 and is provided on the upper portion of the connection flange portion 31 via the step portion 35. The spring receiving cylinder portion 33 has a smaller diameter than the tube receiving portion 32, extends upward through the step portion 36, and has a spiral groove 37 on the outer periphery.

  2, 10, and 11, the fixed cover 10 includes an external hexagonal female screw cylinder portion 38 and an inner flange portion 39 at the upper end thereof. The female screw cylinder portion 38 has an inner peripheral screw portion 40 and is opened downward so as to be screwed into the outer peripheral screw portion 29 of the connecting collar portion 28 of the second nipple 8 shown in FIG. The upper part of the third nipple 9 shown in FIG. 7 is opened upward from the opening 41 at the center of the flange part 38, and the step part 35 is brought into contact with the lower surface of the flange part 39 via the O-ring 42. As described above, the female screw cylinder portion 38 is screwed to the outer peripheral screw portion 29 of the nipple 8 to fix the nipples 8 and 9 in the thrust direction. Since the protrusions and recesses of the thrust engaging portions 30 and 34 of the nipples 8 and 9 are engaged with each other, the fixing in the direction around the axis is stable, and excessive tightening by the fixing cover 10 can be avoided.

  In FIG. 2, the closely wound coil spring 7 is interposed between the first nipple 6 and the third nipple 9, screwed into the spiral groove 20 of the first nipple 6 in the upper part, and third in the lower part. Are screwed into the spiral groove 37 of the nipple 9.

  In FIG. 2, the waterproof tube 11 has cylindrical portions 43, 44 at both upper and lower end portions and an intermediate bellows portion 45 and is mounted so as to cover the closely wound coil spring 7. The tube receiving portion 16 of one nipple 6 is airtightly fitted to the outer periphery of the tube receiving portion 16, and the lower cylindrical portion 45 is airtightly fitted to the outer periphery of the tube receiving portion 32 of the third nipple 9.

  In FIG. 2, the elastic protective tube 46 covering the power cable C penetrates the closely wound coil spring 7, the third nipple 9 and the second nipple 8 from the inside of the spring receiving tube portion 17 of the first nipple 6. The lower end protrudes into the support pipe P. The lower end is fixed on the insulating coating of the power cable C with a washer 47. The protective tube 46 is made of an elastic resin such as neoprene rubber, and prevents the cable C from being damaged by being rubbed against the inner periphery of the nipples 6, 8, 9 when the closely wound coil spring 7 is bent by receiving external force. At the same time, the closely wound coil spring 7 is reinforced.

DESCRIPTION OF SYMBOLS 1 Line-of-sight guide light 2 Lamp body 3 Support | pillar 4 Light emission part 5 Connection cylinder part 6 1st nipple 7 Closely coiled coil spring 8 2nd nipple 9 3rd nipple 10 Fixed cover 11 Waterproof tube 12 Male thread cylinder part 13 Bushing 14 Inside Peripheral screw 15 Screw tube portion 16 Tube receiving portion 17 Spring receiving tube portion 18 Step portion 19 Step portion 20 Spiral groove 21 Inner screw 22 Outer screw 23 Screw tube portion 24 Flange portion 25 Male screw tube portion 26 Outer screw 27 Operating collar portion 28 Connection flange 29 Threaded portion 30 on the outer periphery Thrust engagement portion 31 Connection flange portion 32 Tube receiving portion 33 Spring receiving cylinder portion 34 Thrust engagement portion 35 Step portion 36 Step portion 37 Spiral groove 38 Female thread cylinder portion 39 Inner flange portion 40 Inside Peripheral screw part 41 Opening 42 O-ring 43 Cylindrical part 44 Cylindrical part 45 Bellows part 46 Elastic protective tube 47 Washer 48 Screw hole C Power cable P Support Type

Claims (4)

A line-of-sight guide light that is installed on a support along the shoulder of a road to display the alignment of the road.
A lamp body having a light emitting unit;
A first nipple connected to the lower part of the lamp body and having a spring receiving cylinder part formed on the outer periphery with a spiral groove on the lower part;
A second nipple connected to the top of a support pipe fixed perpendicularly to the support;
This upper portion of the second nipple is adjustably connected relative angle of rotation around the axis, a third nipple having a spring receiving cylinder portion in which the helical groove is formed on the outer periphery at the top,
A fixing cover for fixing the third nipple and the second nipple;
A closely wound coil interposed between the first nipple and the third nipple and screwed into the spiral groove of the first nipple at the upper part and screwed into the spiral groove of the third nipple at the lower part Springs,
Comprising a flexible waterproof tube covering the tightly wound coil spring,
The second nipple includes a male threaded cylinder part screwed onto the upper part of the support pipe, an operating hook part provided on the upper part of the male threaded cylinder part, and a threaded part provided on the outer periphery of the operating hook part. And a connecting collar portion having an annular thrust engaging portion formed of a large number of concavo-convex ridges formed radially on the upper end surface at predetermined rotation angle increments,
The third nipple further includes a connecting hook portion formed at the lower end surface thereof in which an annular corresponding thrust engaging portion including a plurality of concave and convex strips engaged with the thrust engaging portion of the second nipple is formed at the lower end portion. And
The fixed cover has a female screw cylinder part opened downward so as to be screwed into an outer peripheral thread part of the second nipple, and a lower surface located at the upper end part of the female screw cylinder part and connected to the third nipple. An inner flange portion that comes into contact with the upper surface of the first portion and a central opening that penetrates upward from the connecting flange portion of the third nipple and screwing the female screw cylinder portion to the outer peripheral thread portion of the second nipple. A line-of-sight guide light characterized in that the third nipple and the second nipple can be fastened and fixed in the thrust direction. The lamp body has a male screw cylinder part for connection at the bottom,
A synthetic resin bushing is interposed between the lamp body and the first nipple, and the bushing has an inner peripheral screw that is screwed into the male screw cylinder portion of the lamp body and a screw having an outer peripheral screw. A cylindrical portion, and a flange portion provided at an upper end portion of the screw cylindrical portion and interposed between the male screw cylindrical portion and the first nipple,
2. The line-of-sight guide lamp according to claim 1, wherein the first nipple has a screw cylinder portion screwed into an outer peripheral screw of a screw cylinder portion of the bushing at an upper end portion. The first nipple further includes a cylindrical tube receiving portion having a smaller diameter and extending downward through a step portion at a lower portion of the screw cylinder portion, and the spring having a smaller diameter at the lower portion of the tube receiving portion. The receiving tube portion extends downward through the step portion,
The third nipple further includes a cylindrical tube receiving portion that protrudes upward through a step portion having a smaller diameter at the upper portion of the connection flange portion, and the smaller diameter of the third nipple is formed above the tube receiving portion. The spring receiving cylinder part extends upward through the step part,
An upper end portion of the waterproof tube is fitted in an airtight manner on an outer periphery of the tube receiving portion of the first nipple, and a lower end portion is fitted in an outer periphery of the tube receiving portion of the third nipple. The line-of-sight guide light according to claim 2.   Covering the power cable, projecting into the support pipe through the tightly wound coil spring, the third nipple and the second nipple from the spring receiving tube of the first nipple, and the lower end of the power cable 4. The line-of-sight guide lamp according to claim 1, further comprising an elastic protective tube fixed on the insulating coating.

Images