JP2016132896A - Drain ditch unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drain ditch unit which consists of a water channel and a cover detachably fitted to the water channel, and is installed along balustrades on road shoulders, and which prevents the cover from coming out of the water channel and jumping up, even when a tire of a vehicle runs over the cover.SOLUTION: An insertion part 32 laterally protruding toward a balustrade 26A is arranged on a road-surface-side side wall 21c constituting a water channel 21, and on the other hand, a support pin 23 and a stopper 24 are arranged on a balustrade-side side wall 21b oppositely to the insertion part 32. A cover 22 comprises a lateral part 22a and a vertical part 22b, and has an insertion hole 33 of which the groove width is greater than the thickness of the insertion part 32 formed on a suspension part 22c suspended from the road-surface-side end of the lateral part. Attachment and detachment of the cover 22 are performed by turning the cover while shifting it along the insertion part 32.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a drainage ditch installed on a shoulder or a median strip such as a road or a road bridge (in the present specification, these are simply referred to as a shoulder, and thus the road shoulder in this specification includes the median strip). Regarding the unit.

  FIG. 1 shows an example of a conventional drainage groove unit of this type, which includes a water channel portion 1 and a cover portion 2 that is detachably mounted on the water channel portion 1 and covers the water channel portion. In addition, a metal fitting 3 having an inverted L-shaped cross section is attached to the inner surface of the balustrade-side side wall by welding, and a cylindrical fixing metal fitting 4 is vertically welded to the lower side thereof. And the receiving metal fitting 3a of a reverse L-shaped cross section is attached to the inner surface of the side wall part on the road surface side by welding. On the other hand, one side of the cover portion 2 is supported by the receiving bracket 3, the other side is supported by the receiving bracket 3 a, and the one side is fixed by inserting a rubber fixing pin 5 into the fixing bracket 4. It has become. In the figure, reference numeral 6 denotes drain holes formed in large numbers at appropriate intervals in the longitudinal direction of the drain groove unit.

  In the drainage groove unit as described above, for example, a car tire rides on one end of the cover part 2 having a certain length, and the downward force due to the weight of the car is connected to the water channel part 1 and the cover part 2 by the fixing pin 5. When the force is exceeded, the other side portion of the cover portion is lifted, the fixing pin 5 is pulled out from the fixing bracket 4, the cover portion 2 is detached from the water channel portion 1, and is sometimes lifted up and jumped out.

  In order to cope with this problem, the following Patent Document 1 includes a water channel portion 11 having a substantially L-shaped cross section as shown in FIG. 2 and a cover portion 12 that covers the water channel portion 11 and is detachably mounted. The water channel portion 11 projects fitting pins 13 and 14 inwardly onto a balustrade side mounting surface 11a constituting the water channel portion 11 and a road surface side mounting surface 11b shorter than the mounting surface 11a. 12 is provided with fitting grooves 15 and 16 on the balustrade side and road surface side, and the fitting grooves 15 and 16 are fitted to the fitting pins 13 so that the cover part 12 is detachably attached to the water channel part 11. In the drainage groove unit, the rib 17 protrudes inwardly on the balustrade side mounting surface of the water channel portion 11, and waits above the fin 18 provided on the inclined surface portion 12 a of the cover portion 12. To engage from the side Those so as to prevent the splashing up of the cover portion 12 I have been proposed. In the figure, 19 is an anchor embedded in the balustrade 20.

Japanese Patent No. 4256302

  In the drainage groove unit shown in FIG. 2, the cover 12 is removed by lifting the cover 12 as indicated by a one-dot chain line, separating the fitting grooves 15 and 16 from the fitting pins 13 and 14, and removing the fins 18. After engaging the rib 17, the cover portion 12 is moved in the direction of the arrow in the figure, and the fin 18 is removed from the rib 17, but the inclined surface portion 12 a at the end of the cover portion 12 having a certain length is formed. When the tire on the automobile rides up, the other end of the cover part is lifted, and the tire riding on the inclined surface part 12a with the fin 18 engaged with the rib 17 is returned to the road surface side, this movement is followed. There is a risk that the cover part 12 may come off the water channel part 11 and repel.

  An object of the present invention is to provide a drainage groove unit that solves the above-described problems and can more reliably prevent the cover from splashing.

  The invention according to claim 1 includes a bottom wall portion, a water channel portion comprising side wall portions rising from both ends of the bottom wall portion, and a removable cover portion attached to the water channel portion in a state supported by support means. Of the both side walls on the road surface side and balustrade side constituting the water channel portion, the side wall portion on the road surface side is formed with an insertion portion protruding into the water channel portion, and integrated with the road surface side end of the cover portion. An insertion hole is formed in the hanging portion that is formed and is opposed to the side wall portion on the road surface side, and the insertion portion is inserted into the water passage portion so that the insertion portion is inserted with play. The operation is performed by a combination of an operation of shifting the cover portion along the insertion portion while the insertion portion is inserted into the insertion portion and an operation of turning the cover portion around the insertion portion as a fulcrum.

  The invention according to claim 2 is the invention according to claim 1, wherein the side wall portion on the balustrade side of the both side wall portions constituting the water channel portion is provided with a stopper, while the cover portion is connected with the cover portion. When turning at a certain angle with the insertion part as a fulcrum, a locking part is provided to stop the turning of the cover part by locking to the stopper, and the cover part is stopped in a state where the turning part is locked to the stopper and the turning of the cover part is stopped. When the portion is shifted along the insertion portion, the locking portion is detached from the stopper, and the cover portion can be turned.

  The invention according to claim 3 is characterized in that, in the invention according to claim 1 or 2, the cover part has a horizontal part in which a tire of an automobile can enter and a vertical part that rises without inclining from the horizontal part. .

  In the drainage groove unit of the invention according to claim 1, the attachment of the cover part to the water channel part applies the end of the insertion part to the insertion hole, inserts the insertion hole into the insertion part, and inserts the cover part into the insertion part. By turning the insertion part as a fulcrum, turning in the direction of falling to the road surface side, or by shifting the cover part by a certain amount along the insertion part and turning the insertion part as a fulcrum Done. Therefore, the combination of the operation of shifting the cover portion along the insertion portion and the operation of turning the cover portion with the insertion portion as a fulcrum is performed without shifting both operations, Including operations where the operations are performed independently and alternately little by little.

  Removal of the cover part from the water channel part is performed by an operation reverse to the above-described attachment method, and the cover part cannot be removed unless a combination of both operations is used. Even if the tire of a vehicle such as an automobile rides on the cover part and the other end of the cover part is lifted, the drainage groove unit shown in FIG. When the force of the direction is applied, the cover part may come off from the water channel part and repel, whereas in the present invention, if the movement of both operations does not occur, the cover part will come off from the water channel part and repel up. Therefore, it is possible to more reliably prevent the cover portion from coming off and splashing up.

  According to the second aspect of the present invention, the cover part is removed by a combination of the operation of shifting along the insertion part and the turning operation as described above, and the turning part is locked by the stopper during turning. When the cover is stopped, the above-described shifting operation is performed, and the removal of the cover portion requires a more complicated operation than that shown in FIG. For this reason, it is possible to more reliably prevent the cover portion from being inadvertently detached and repelled by an external force.

  If the cover has an inclined surface on which the tires of the car can ride, the cover may be displaced or swivel when the tire on the inclined surface returns to the road surface. The cover part is not likely to be removed by the deviation in this direction. In particular, as in the case of the cover portion of the invention according to claim 3, when there is no inclined surface, even if the tire of an automobile enters the lateral portion, the above-described displacement or turning of the cover portion does not occur. Can be more reliably prevented from coming off and splashing.

Sectional drawing of the prior art example of a drain ditch unit. The figure which shows the other conventional example of a drainage groove unit. The perspective view of the drain ditch unit concerning the present invention. The longitudinal cross-sectional view of the drainage groove unit shown in FIG. Sectional drawing which shows an aspect when attaching / detaching a cover part. Sectional drawing which shows an aspect when a protruding piece passes through a stopper. Sectional drawing which shows the AA line of FIG. Sectional drawing which shows an aspect when a cover part turns and a protrusion hits a stopper. Sectional drawing which shows the deformation | transformation aspect of a drain ditch unit.

Hereinafter, a drainage groove unit of an embodiment of the present invention will be described with reference to the drawings.
FIG. 3 shows the overall structure of the drainage groove unit, and FIG. 4 shows the cross-sectional structure of the unit after construction. The waterway part 21 has a fixed length and can be removed by covering the waterway part 21. The water channel portion 21 is composed of a cover portion 22 having the same length as that of the water channel portion 21, and the water channel portion 21 has a bottom portion 21 a, a long side wall portion 21 b on the balustrade side that rises from both ends of the bottom portion, and a short side wall portion on the road surface side. 21c is substantially L-shaped in cross section, and support pins 23 as support means are parallel to the bottom wall portion 21a toward the road surface 27 with a certain interval in the longitudinal direction of the water channel portion 21 at the upper portion of the side wall portion 21b. And L-shaped stoppers 24 projecting sideways in a symmetrical manner in opposite directions on both sides in the longitudinal direction of the intermediate portion in the vertical direction. 4 shown in FIG. 4 is an anchor embedded in the balustrade 26 to fix the water channel portion 21 to the balustrade 26.

  On the side wall 21c, a support pin 28, which is also a support means, faces the railing 26 and faces the support pin 23 in the water channel portion in parallel with the bottom wall portion 21a at a certain interval in the longitudinal direction of the water channel portion 21. A thin plate-like insertion portion 29 is provided between the support pins 28 on both sides in the longitudinal direction so as to protrude in the same direction as the support pins 28 in parallel with the bottom wall portion 21a.

  The cover part 22 is composed of a horizontal part 22a and a vertical part 22b that rises perpendicular to the horizontal part 22a and forms an angle, and a hanging part that faces the side wall part 21c of the water channel part 21 at the horizontal part end on the road surface side. The concave portion 22c is integrally formed by being bent downward, and the hanging portion 22c is formed with a recess 31 in which the support pin 28 is fitted at a position corresponding to the support pin 28, and the water channel between the recesses on both sides in the longitudinal direction. An insertion hole 33 into which the insertion part 29 of the part 21 is inserted is formed. The insertion hole 33 is formed so that the groove width in the vertical direction is larger than the thickness of the insertion part 29 having a thin plate shape, whereby the insertion part 32 is inserted into the insertion hole 32. Can tilt up and down within a certain range.

  On the balustrade side of the vertical portion 22b, ribs 35 are protruded at a certain interval in the longitudinal direction toward the balustrade 26 (three places in FIG. 3), and at the portions corresponding to the stoppers 24 of the ribs 35 on both sides. A protruding piece 37 as a locking portion that can be engaged with the stopper 24 protrudes from the rib 35.

  An L-shaped covering portion 22d covering the rib 33 is integrally formed at the upper end of the vertical portion 22b so as to protrude toward the balustrade 26, and the hanging portion 22e hanging from the end of the covering portion 22d is provided at a position corresponding to the support pin 23. A recess 36 into which the support pin 23 is fitted is formed. In the figure, reference numeral 38 denotes a drainage hole that is formed on both sides in the longitudinal direction of the cover portion 22 so as to straddle both portions at the intersection of the horizontal portion 22a and the vertical portion 22b.

  The drainage groove unit of the present embodiment is configured as described above, and the cover portion 22 is attached after the water channel portions 21 are arranged in a line along the balustrade 26, and the cover portion 22 is attached as follows. Done. In FIG. 3, reference numeral 39 denotes a connection fitting provided at the connection portion of the water channel portion 21 for sealing the connection portion.

  With the cover portion 22 tilted as shown in FIG. 5, the insertion hole 33 is applied to the protruding end of the insertion portion 29 and fitted. Next, the cover portion 22 is turned clockwise along the insertion portion 29 so that the insertion hole 33 moves toward the base of the insertion portion 29. 6 and 7, during the turning, the projecting piece 37 does not stop when the projecting piece 37 hits the stopper 24 from above, and the turning operation is performed while shifting so as to pass through the gap between the side wall portion 21 b and the stopper 24. However, the shift and the turn may be divided into a certain amount and the turn may be performed, and the shift and the turn may be alternately performed.

  FIG. 4 shows a state in which the cover portion 22 is attached. In this state, the cover portion 22 is attached and supported on the water channel portion by the support pin 28 that fits into the recess 31 and the support pin 23 that fits into the recess 36. The

  When the cover portion 22 is removed, the reverse procedure is performed. However, when the cover portion 22 is simply turned, the projecting piece 37 hits the stopper 24 as shown in FIG. Therefore, in this case, the cover portion 22 is slightly shifted to the left in FIG. 8, which is the direction in which the cover portion 22 is withdrawn from the insertion portion 32, and the projecting piece 37 is removed from the stopper 24 to the gap between the stopper 24 and the side wall portion 21b. It is advisable to perform a turn while shifting in a positioned state.

  In the state where the cover portion 22 is attached as shown in FIG. 4, a tire of a vehicle such as an automobile can be put into the lateral portion 22 a, but a tire of a vehicle gets into one end of the cover portion 22, thereby the cover portion 22. Even if the other end of the cover is lifted, the lift is limited until the lower end surface of the insertion hole 33 comes into contact with the insertion part 29, and no other movement occurs in the cover part 22. No more jumping off.

  Although the cover part 22 of this embodiment is comprised by the horizontal part 22a and the vertical part 22b, and does not have the inclined surface part 12a as shown in FIG. 2, in another embodiment, an inclined surface part is provided. Even if it has such an inclined surface part, and a movement of returning to the road surface 27 after the vehicle tire rides on the inclined surface part, the cover part 22 does not cause the above-described displacement or turning, Therefore, the cover part 22 does not come off the water channel part 21 and repels.

  In the said embodiment, although the insertion part 32 has comprised the thin plate shape, the cross section may have comprised circular, ellipse, large diameter, and other arbitrary shapes, for example. When the cross section is circular, for example, the insertion hole 33 is formed as a large-diameter circular hole or a vertical hole.

  In the above-described embodiment, the support pins 23 and 28 are exemplified as the support means for supporting the cover portion 22. However, if there is no problem in strength, the insertion portion 29 has a function as a support means for the cover portion 22. The insertion part 29 may be used as a support means. In this case, the support pin 28 can be omitted. Also, instead of the support pin 23 or together with the support pin 23, a leg for landing on the bottom portion 21 a of the water channel portion 21 is provided on the lateral portion 22 a of the cover portion 22, and the leg constitutes a support means for the cover portion 22. It may be used.

  In FIG. 9, instead of the stopper 24, a pin or a thin plate-like stopper 39 protruding from the side wall 21 b of the water channel portion 21 toward the road surface 27 is provided, and a locking portion that can be engaged with the stopper 39 is a pin 42. It is what. Further, a support pin 23 for supporting the cover portion 22 is provided below the stopper 39, and the support pin 43 is fitted into a recess 45 formed in an angle member 44 fixed to the rib 41 to support the cover portion 22. Therefore, the angle member 44 may have a function as a spacer by changing the thickness or changing the number of stacked members.

  In attaching and detaching the cover portion 22 in the present embodiment, when the pin 42 hits the stopper 39, the cover portion 22 is shifted to avoid detachment of the pin 42 from the stopper 39, the post-avoidance cover portion 22 is turned, and the combined operation of shifting and turning is performed. The cover portion 22 is attached and detached by the above.

  The support pin 43 shown in FIG. 9 may be replaced with a block, and an angle member 44 fixed to the rib 41 or a step formed on the rib 41 may be directly engaged with the block.

  The drainage groove unit of each of the embodiments is provided along a railing installed on a road shoulder such as a road or a road bridge. In other embodiments, the drainage groove unit is provided along a median strip.

21 ·· Channel portion 22 ··· Cover portion 23, 28, 43 · · Support pins 24 and 39 · · Stopper 26 · · Railing 29 · · Insertion portion 31, 36, 45 · · · Recess 33 · · · Insert hole 35 41 ·· Rib 37 · · Projection piece 40 · · Connection fitting 42 · · Pin 44 · · Angle material

Claims (3)

  A road surface comprising a bottom wall part, a water channel part comprising side wall parts rising from both ends of the bottom wall part, and a removable cover part attached to the water channel part in a state supported by support means. Of the both side walls on the side and balustrade side, the side wall portion on the road surface side is formed with an insertion portion that protrudes into the water channel portion, while being integrally formed at the road surface side end of the cover portion, and on the road surface side An insertion hole into which the insertion part is inserted with play is formed in the hanging part facing the side wall part, and the insertion and removal of the cover part to the water channel part is performed by inserting the insertion part into the insertion hole. A drainage groove unit characterized in that it is performed by a combination of an operation of shifting the cover portion along the insertion portion in a state and an operation of turning the cover portion around the insertion portion as a fulcrum.   A stopper is provided on the balustrade-side side wall portion of the both side wall portions constituting the water channel portion, while the cover portion is locked to the stopper when the cover portion is turned at a certain angle with the insertion portion as a fulcrum. A locking part for stopping the turning of the cover part is provided. When the locking part is locked to the stopper and the turning of the cover part is stopped, the cover part is shifted along the insertion part, and the locking part is stopped by the stopper. The drainage groove unit according to claim 1, wherein the drainage groove unit is further separated to enable turning of the cover portion.   The drainage groove unit according to claim 1 or 2, wherein the cover part has a horizontal part into which an automobile tire can enter and a vertical part that rises without inclining from the horizontal part.