JP5638872B2 - Grating support structure - Google Patents

Description

  The present invention mainly relates to a support structure for a grating that is mounted in a side groove on a roadside or a crossing groove on a road.

  Most of the gratings are made of steel and are attached to the same steel receiving frame attached to the side groove of the roadside or the drainage of the floor drainage system, but it is difficult to install it without any gap in the receiving frame. When a vehicle runs above the vehicle or a pedestrian walks, the grating hits the receiving frame and tends to generate a rattling sound. In order to prevent looseness, a metal mat or rubber mat is interposed between the grating and the receiving frame (Patent Documents 1 and 2).

  The gutter where the grating is installed may also have signs or signs indicating the direction of travel of vehicles or pedestrians nearby, many of which can be identified at night by fluorescent paint or by being lit up. Has been. Similarly, road markings such as arrows, lines, pedestrian crossings, speed limits, etc. are also displayed on the road surface near the grating mounted in the crossing groove of the road with fluorescent paint.

  On the other hand, in snowy countries, winter snow removal measures are an important issue in daily life. Snowplows are being scraped by snowplows on main roads, but in places where there is little hindrance to the passage of vehicles and pedestrians such as in the ditch and the vicinity, snow-scraped snow accumulates and is left unattended. The situation is that snow is being removed by hand only in places where troubles occur.

JP-A-8-49286 JP 2005-320768 A

  The applicant previously described in Japanese Patent Application No. 2008-64344 a piezoelectric elastic mat that is mounted between the receiving frame or the step portion of the upper edge of the side groove in order to prevent rattling of the grating that is mounted on the side groove. It is composed of elements, or a piezoelectric element is assembled on the mat, and the piezoelectric element is connected to a sign near the grating, a light emitter such as an LED constituting a road marking on the road surface, a light or a buzzer that illuminates the sign or signboard. A support structure was proposed.

  In order to damage or break the piezoelectric element and the lead wire connected to the piezoelectric element due to external force, or to make them waterproof, the piezoelectric element is embedded in an anti-rattle material and integrally molded. However, this requires complicated molds and advanced molding techniques, and has the disadvantage of increasing production costs.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a grating support structure capable of protecting a piezoelectric element from an external force and ensuring waterproofness without insert-molding the mat on a mat.

The invention according to claim 1 is a grating supporting structure in which a grating is attached to a side groove or road crossing groove via a raising material such as a square steel pipe, and is attached to the inside of the raising material, A piezoelectric element connected to a sign, a light emitter that constitutes a road marking on a road surface, a light or a buzzer that illuminates a signboard, and a receiving frame that is directly or directly attached to a step on the upper edge of the opening of the side groove or the transverse groove On the grating mounted on the lateral groove or the transverse groove, which has a pin that protrudes into the raising material through the raising material, hits the piezoelectric element, or has a pin with an appropriate gap. When load is applied to move the vehicles and pedestrians, or the contact pressure to the pin of the piezoelectric element is increased, or one where the piezoelectric element is in contact with the pin, the mounting of the grating There is canceled, or the contact pressure to the pin of the piezoelectric element is reduced, or the piezoelectric element is characterized in that power generation by the piezoelectric element is effected by spaced apart from the pin.

The invention according to claim 2 is characterized in that, in the invention according to claim 1, the piezoelectric element is supported inside the raising material by a support member with an appropriate distance from the raising material.
The invention according to claim 3 is the invention according to claim 1 or 2, characterized in that the pin is fixed to an elastically deformable mat fixed to the lower surface of the raising material, and protrudes downward from the mat.
The invention according to claim 4 is the invention according to claim 1 or 2, wherein the raising material is mounted via an elastically deformable mat mounted on the stepped portion or a receiving frame mounted on the stepped portion. The pin is movable up and down.

  The invention according to claim 5 is the invention according to claim 2, wherein a plurality of piezoelectric elements are attached to the steel strip attached in close contact with the support member or the inner surface of the raising material with an appropriate interval. It is characterized by.

  According to the first aspect of the invention, the grating moves up and down each time the vehicle or pedestrian moves on the grating, and the piezoelectric element is pressed against the pin, the pressing is released, or the contact pressure to the pin changes. Power is generated, and light sources such as signs, signboards, road signs, etc. emit light, making it easy to identify them even at night, and by sounding a buzzer, nearby pedestrians and vehicle drivers It is possible to call attention, and by supplying power to the heating wire to generate heat, it is possible to melt snow and eliminate the need for snow removal, and the connection part between the piezoelectric element and lead wire is rigid. Because it is installed inside a raised material and protected from external forces, it is prevented from being damaged or disconnected, and it is not directly exposed to rainwater, so there is no need to consider waterproof measures. It, raising material may be not fixed to the grating ends, if fixed, have an effect such that the strength of the grating is increased. In addition, when the power generation capacity of the piezoelectric element alone is insufficient, the battery is charged when there is insufficient power for lighting or melting snow, and when used as a lighting power source for a certain period of time, for example, the electric energy is supplied from the battery to the light emitter at night. It is good to do so.

  The entire piezoelectric element may be attached in close contact with the raising material inside the raising material. However, as in the invention according to claim 2, the piezoelectric element is supported with a gap between the raising material. And it moves up and down by the contact with the protrusion, and the power generation capacity is improved.

According to the invention of claim 3, the grating is supported by the step at the upper edge of the opening of the side groove or the transverse groove by the pin or the receiving frame attached to the step, and even if there is some unevenness in the step, the receiving frame Even if there is a gap between them, it can be supported without causing backlash.
According to the invention according to claim 4, the grating is supported via a step on the upper edge of the opening of the side groove or the transverse groove or a mat attached to the receiving frame. Even if there is a gap between them, the pin can be supported without rattling, the pin is not affected by deformation due to compression of the mat, the contact of the piezoelectric element with the pin is maintained, and power can be generated, etc. Has an effect.

  According to the fifth aspect of the present invention, when a plurality of piezoelectric elements are attached, it is easier to remove, attach, repair, or replace the piezoelectric elements than to the individual raising members, and repair and maintenance can be performed easily.

Sectional drawing which shows the support structure of the grating with which the side groove | channel was mounted | worn. The perspective view of grating. The longitudinal cross-sectional view of the raising material. AA line sectional view of Drawing 3. The bottom view of the principal part of the raising material. The longitudinal cross-sectional view of the raising material at the time of loading. Sectional drawing in the BB line of FIG. The figure which shows another aspect of the supporting member of a piezoelectric element. The figure which shows another aspect of the supporting member of a piezoelectric element. Sectional drawing which shows the support structure of another embodiment. The top view of the mat | matte used for the support structure shown in FIG. The bottom view of the raising material used for the support structure shown in FIG. The top view of the band used for the support structure shown in FIG.

Hereinafter, a grating mounting structure according to an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows a mounting structure of a grating 2 attached to a side groove 1 which is one example of use of grating. The grating 2 is connected to the main member 2a and both ends of the main member 2a arranged in parallel as shown in FIG. It consists of an end plate 2b to be fixed and a cross bar 2c that is orthogonal to the main member 2a and fixed to the upper end of the main member. The mat 4 is mounted and supported via a possible mat 4 and a raising member 5 made of a square steel pipe raising member having high rigidity.

  For example, a rubber or resin molded body can be used as the anti-rattle material 4, and among these, it is desirable to use a rubber mat.

  The raising material 5 has holes 6 formed in the bottom wall portion at appropriate intervals in the longitudinal direction, and the mat 4 and the raising material 5 are fixed to both ends of the grating. These fixings are performed by bonding the mat 4 to the lower surface of the raising material or fixing the mat 4 with a fastening device such as a bolt, a screw or a rivet, and fixing the upper surface of the raising material directly to the grating 2 or not shown. This is done by welding to the mounting plate or by fastening with the fastening tool.

  3 is a longitudinal sectional view of the raising material, FIG. 4 is a sectional view taken along line AA in FIG. 3, and FIG. 5 is a bottom view of the main part of the raising material 5. Attached to the inner surface by a fastening tool such as a bolt, screw or rivet (not shown). It should be noted that the fastening of the band by the fastening tool is performed between the main members of the grating 2.

  A support member 8 having a concave cross section is fixed to the band 7 at locations corresponding to the holes 6 formed in the raised material 5, and a piezoelectric element 9 is attached to each support member 8 and an appropriate upper wall of the raised material. Affixed at intervals. The band 7 is made of metal, but may not be made of metal as long as it has an appropriate rigidity like a hard resin.

  The support member 8 is an elongated elastic body having conductivity and high elasticity made of, for example, any one of weathering steel, spring steel, phosphor bronze, tool steel, and the like, and piezoelectric elements are attached to both front and back surfaces. Is done. This is called a bimorph, but it may be a single-sided sticking called a so-called unimorph. In addition, when sticking on one side, the bending of the support member 8 can be enlarged.

  The above-mentioned bonding of the piezoelectric element 9 is performed by using a thermosetting adhesive such as an epoxy resin, or by performing a heating and pressing process using a polymer film having adhesiveness.

  The piezoelectric element 9 is also connected to a lead wire (not shown), which is connected to a sign near the grating, a light-emitting body constituting a road marking on the road surface, such as a light-emitting diode, a light or a buzzer for illuminating a signboard. Has been.

  The mat 4 corresponds to the hole 6 formed in the raising material 5 and is fixed vertically in a position protruding from the backlash preventing material 4 at a position corresponding to the piezoelectric element 9 from the mat 4. A projecting portion projecting downward contacts the step portion 3, thereby supporting the mat 4 on the step portion 3 with an appropriate distance from the step portion 3. A protruding portion 11 a protruding upward from the mat 4 protrudes through a hole 6 formed in the raised material bottom wall and faces the piezoelectric element 9.

  6 and 7, the vehicle passes over the grating, or a pedestrian walks and is loaded on the grating 2, so that the grating 2 and the raising material 5 bring the mat 4 into the stepped portion 3 in the direction of the arrow in FIG. It shows a state of being pushed down and lowered, and the mat 4 is deformed as shown in the figure when the raising material 5 is lowered, and the piezoelectric element 9 hits the protruding portion 11a of the pin 11 supported by the step portion 3, and the raising material When 5 further descends, the piezoelectric element 9 is crimped to the protruding portion 11a while the support member is bent. On the other hand, when the vehicle or pedestrian passes over the grating and the load is released, the restoring force of the mat 4 causes FIG. As shown in FIG. 4, the grating 2 and the raising material 5 are raised, and the piezoelectric element 9 is separated from the protruding portion 11a.

  As described above, each time a vehicle or a pedestrian passes on the grating, the piezoelectric element 9 strikes the protruding portion 11a to generate power, and the light emitting diodes constituting the signs near the grating and the road signs on the road surface, and the light emitting diodes illuminating the signboard are turned on. Or a buzzer is sounded.

  According to the grating support structure of the present embodiment, the grating 2 is supported at a plurality of locations by the pins 11 on the step 3 of the upper edge of the side groove at both ends thereof, and each pin 11 is a step even if the step is uneven. 3 that the piezoelectric element 9 hits the projecting portion 11a of the pin 11 due to the passage of a vehicle or a pedestrian, and generates electricity by causing a light emitting body such as a sign, a signboard, or a road sign to emit light. Can be easily identified at night, a buzzer can be used to call attention to nearby pedestrians and vehicle drivers, and heat can be generated by supplying power to the heating wire. It is possible to melt the snow and eliminate the need for snow removal by using the raising member 5 made of a rigid raising member whose connecting portion to the piezoelectric element 9 and the lead wire (not shown) is used. Therefore, it is protected from external force, is not easily damaged or disconnected, and is not directly exposed to rainwater, so that it does not have to be waterproof. The piezoelectric element 9 is directly bonded to the support member 8 using a commercially available one. The mounting cost is lower than that of insert molding, and the piezoelectric element 9 is attached to the band 7 at an appropriate interval. Therefore, the band 7 is attached to the raising member 5 by attaching the raising member 5 to the raising member 5. The piezoelectric element 9 can be attached at a predetermined interval simply by inserting the band 7 into the raising member 5 and fixing it to the raising member 5 using bolts, screws, rivets and the like. Removal is easy at the time of replacement, and repairs and maintenance are easy.

  In the above embodiment, the piezoelectric element 9 is attached to the support member 8 having a concave cross section. However, as shown in FIG. 8, the piezoelectric element 9 may be attached to a support member 15 having a cantilever shape and flexibility. As shown in FIG. 9, one end may be fixed to the upper wall of the raising material and the other end may be attached to a mountain-shaped support member 16 that is slidably supported by the upper wall.

  The piezoelectric element 9 also has a chip shape and is attached to the inner surface of the upper surface of the raising member 5 by supporting members 8, 15, and 16. However, the supporting members 8, 15, and 16 are omitted, and the band 7 or the raising member is removed. The piezoelectric element 9 may be directly attached in close contact with the wall inner surface, or the piezoelectric element 9 may be formed in a long shape instead of being formed in a chip shape and attached to the band 7 or the raising material 5. In this case, the hole 6 formed in the raising material 5 is formed in a long hole or groove extending in the longitudinal direction of the raising material 5, and the pin 11 fitted in the elongated hole or long groove also extends long in the longitudinal direction of the raising material 5. It is formed in a thin plate shape.

  FIG. 10 shows another mounting structure of the grating 2. As in the above-described embodiment, the grating 2 has a mat 21 that can be elastically deformed at both end portions on the end plate side into a step 3 on the upper edge of the opening of the side groove. It is mounted and supported with a raising member 22 made of a square pipe made of steel having high rigidity.

  The mat 21 is preferably a rubber plate, like the mat 4 of the above-described embodiment, and is described later at one place in the center or at a plurality of places (two places in the example shown in FIG. 11) at regular intervals. A fitting hole 24 is formed through the pin 23 so as to be movable up and down.

  The raising member 22 is formed with a plurality of holes 25 (five places in FIG. 12) having a diameter larger than the fitting holes 24 at an appropriate interval in the longitudinal direction in the bottom wall portion, and two of them on both sides sandwiching the central hole 25. The hole 25 is formed at the same position as the fitting hole 24.

  FIG. 13 shows a band 26 fixed to the inner surface of the upper wall of the raising member 22, and a piezoelectric element 27 is attached to a portion corresponding to the fitting hole 24 on the inner surface facing the fitting hole 24. The band 26 is fixed together with the raising member 22 by fastening to the grating 2 with a fastening tool such as a bolt, a screw, or a lippet through the hole 25, and is provided at three locations other than the hole 25 corresponding to the fitting hole 24. The hole 25 is used when the fastening tool is fastened with a tool.

  The raising material 22 can also be fixed to the grating 2 by welding or adhesion, and the band 26 can also be adhered and fixed to the raising material 22. In this case, the hole 25 corresponds to the fitting hole 24. It is only necessary to form two places in the place, and the other three holes 25 are unnecessary.

  The pin 23 through which the fitting hole 24 is movably moved up and down is supported by the step portion 3 and is preferably made of rubber or resin as a whole, and has a head portion 23a in contact with the piezoelectric element 27 at the upper end, and has a convex section. The head 23 a can be fitted into the hole 25, but cannot be passed through the fitting hole 24, and is caught by the hole edge of the fitting hole 24 to be prevented from coming off.

  The mat 21 is assembled to the raising member 22 in a state where the two fitting holes 24 of the mat 21 are respectively passed through the pins 23 supported by the step portion 3 and the heads 23a of the pins 3 are directed upward. Is inserted into the hole 25 of the raising material 22 and brought into contact with the piezoelectric element 27, and the mat 21 is applied to the lower surface of the raising material and adhered to the lower wall of the raising material, or is fixed by a fastening tool such as a screw or a reppet. Do by wearing. FIG. 10 shows an attached state.

  According to the grating support structure of the present embodiment, the grating 2 is attached to the step 3 on the upper edge of the side groove via the mat 21 and the raising material 22 at both ends, and the step 3 has some unevenness. However, the mat 21 is elastically deformed and is in close contact with the ratchet, and when a vehicle or a pedestrian passes on the grating, the mat 21 is compressed by the weight, and the grating 2 is lowered together with the raising material 22 to raise the raising material. The lowering of 22 raises the contact pressure of the piezoelectric element 27 to the pin head 23a supported by the step portion 3 to generate electricity. Thus, similar to the above embodiment, it is possible to melt snow by causing the illuminant to emit light, sounding a buzzer, supplying electric power to the heating wire to generate heat, and the connection portion with the piezoelectric element 27 and the lead wire Since it is housed inside the rigid body raising material 22, it is difficult to cause damage or disconnection, and is not directly exposed to rainwater, so that it is not necessary to have a waterproof structure, and the pin 23 is separate from the raising material 22, and the raising material 22 Therefore, no matter how the mat 21 is compressed, the pin 23 supported by the step portion 3 does not receive an external force. The contact of the element 27 with the pin head 23a can be reliably maintained, the commercially available piezoelectric element 27 can be used as it is, and the pair of piezoelectric elements 27 is separated from the band 26 by a predetermined distance. Since the band 26 is inserted into the raising material 22 from one end and is fastened to the raising material 22 using a fastening tool such as a bolt, a screw or a lippet, the piezoelectric elements 27 are attached at predetermined intervals. It can be attached corresponding to the fitting hole 24, and can be easily attached to and detached from the raising member 22, and can be easily repaired and maintained.

  In the above-described embodiment, the piezoelectric element 27 is attached to the band 26. However, similarly to the above-described embodiment, the piezoelectric element 27 may be attached to the support member 8 having a concave cross section fixed to the band, or the band may be omitted. And may be directly attached to the inner surface of the upper wall of the raising material.

  The grating 2 in each of the above embodiments is directly attached to the step 3 of the upper edge of the side groove through the raising material 5 and the mat 4 attached to both ends, and the pin is supported by the step, but the upper edge of the side groove is A well-known receiving frame may be attached to the stepped portion 3, the grating 2 may be mounted on the receiving frame, and the pins may be supported by the receiving frame.

1 .. Side groove 2.. Grating 3.. Step 4, 21.. Mat 5, 22.. Raising material 6, 25.. Hole 7, 26 ... Band 8, 15, 16. 27..Piezoelectric elements 11, 23..Pin 11a..Protrusion 23a..Head 24..Fitting hole

Claims (5)

A grating support structure in which a grating is attached to a side groove or road crossing groove via a raising member such as a square steel pipe. The grating is attached to the inside of the raising member and constitutes a sign near the grating and a road marking on the road surface. A light emitting body, a piezoelectric element connected to a light or a buzzer for illuminating a signboard, and supported vertically in a step frame on the upper edge of the opening of the side groove or the transverse groove or in a receiving frame attached to the step part, A vehicle or pedestrian moves over the grating mounted in the side groove or the transverse groove, which protrudes into the raising material through the raising material and has a pin which hits the piezoelectric element or has an appropriate gap with the piezoelectric element. When load is applied, or the contact pressure to the pin of the piezoelectric element is increased, or one where the piezoelectric element is in contact with the pin, the loading of the grating is released, the piezoelectric element The support structure of the grating, characterized in that power generation by the piezoelectric element is performed by the contact pressure to the pins of either decreases, or a piezoelectric element is separated from the pin.   2. The grating support structure according to claim 1, wherein the piezoelectric element is supported inside the raising material by a supporting member at an appropriate distance from the raising material.   The grating support structure according to claim 1, wherein the pin is fixed to an elastically deformable mat fixed to a lower surface of the raising material and protrudes downward from the mat.   2. The raising member is mounted via an elastically deformable mat mounted on the stepped portion or a receiving frame mounted on the stepped portion, and the mat is movable up and down with respect to the pin. Or the support structure of the grating of 2 description. The grating support structure according to claim 2, wherein the support member is long and a plurality of piezoelectric elements are attached at an appropriate interval.