JP5579117B2 - Fixing device for groove lid - Google Patents

Description

  The present invention is for fixing a groove cover attached to a drain groove such as a side groove provided in a side portion of an indoor or outdoor passage or a transverse groove provided so as to cross the passage to the lid receiving frame. The present invention relates to a fixing device for a groove lid.

  In general, a groove lid that covers an upper opening of a drainage groove such as a side groove or a transverse groove is detachably attached to the drainage groove in a state of being mounted on a lid receiving frame disposed at the upper part of the drainage groove. However, when the groove lid is simply mounted on the lid receiving frame, the groove lid rattles due to the passage of a person or a car and noise is generated, or there is a problem that it is displaced from the attachment position due to an impact caused by the passage of a car. is there.

  In order to solve such a problem, a groove lid fixing device is known in which a groove lid is fixed to a lid receiving frame by a bolt and a nut (for example, see Patent Document 1). As shown in FIG. 11, the bolt c is erected on the lid receiving frame b disposed in the upper part of the drainage channel a, while the bolt is placed at a predetermined position on the lower surface of the groove lid d corresponding to the bolt c. A bottom plate e provided with an insertion hole f is disposed, and a nut g is screwed into a protruding end of the bolt c inserted into the bolt insertion hole f of the bottom plate e from below to tighten the groove lid d. It is designed to be fixed to the lid receiving frame b.

  In addition, as shown in FIG. 12, a configuration is also known in which a cap j having a U-shaped cross section is fitted into a concave space portion h generated in the mounting portion of the nut g, and the space portion h is closed by the cap j. ing.

JP 2000-45376 (paragraph number [0002], FIG. 11)

  By the way, in the general groove lid fixing device as disclosed in Patent Document 1 described above, the box wrench k (see FIG. 11) is used for the rotation operation of the nut g. A large concave space h in which k can be inserted from above is formed in the mounting portion of the nut g. For this reason, there is a problem in that a high-heeled heel or a tip of a cane is easily fitted in the space h. In addition, in the configuration in which the space portion h is closed by the cap j as shown in FIG. 12, the cap j is only fitted in a loose-fitting shape, so that it can be lifted by an impact caused by the passage of an automobile, There was a risk of detachment.

  The present invention was made in order to solve such a conventional problem, and it is possible to ensure the safety of walking by eliminating the concave space portion in the mounting portion of the nut, and the constituent members are lifted by impact, It is an object of the present invention to provide a groove lid fixing device that can obtain a stable fixing state that does not come off.

  The present invention relates to a groove lid fixing device for fixing a groove lid mounted on a lid receiving frame provided in a drainage groove to the lid receiving frame, a screw rod standing on the lid receiving frame, and the screw A storage recess provided at a predetermined position of the groove lid corresponding to the flange and having a bottom plate formed with a through hole through which the screw flange can be inserted from below, and a rotation operation tool engageable with the upper end. A nut member in which a screw hole that can be screwed to the screw rod is formed at the lower end, a lower surface is in surface contact with the bottom plate of the housing recess, and an upper surface is substantially the same as the upper surface of the groove lid The lower plate portion, which is embedded in the storage recess in a single state and has a through-hole through which the screw rod can be inserted from below, and the engagement tip portion of the turning operation tool are inserted. A cutting plate comprising an upper plate portion in which a possible operation hole is formed, and a hollow portion in which the nut member can be inserted and removed from both end openings. A cylindrical fixture having a B-shaped cylindrical fixture, the cylindrical fixture having the nut member disposed in the cavity is embedded in a storage recess of a groove lid mounted on a lid receiving frame, and the through hole of the storage recess and the The groove lid fixing device is configured to fix the groove lid and the groove receiving frame via a cylindrical fixture by screwing the nut member into a screw rod inserted through the insertion hole.

  Here, the lid receiving frame provided in the drainage channel includes a horizontal edge and a vertical edge rising from the outer end of the horizontal edge, and is disposed in a pair of left and right on the upper inner edge of the drainage channel, A structure in which the left and right side edges of the groove lid are mounted on both horizontal edges is applied, and in this case, a screw rod is erected on the horizontal edge. In addition, the other lid receiving frame is composed of left and right support frames disposed in the upper part of the drainage channel, and a lid receiving member horizontally mounted between the supporting frames. The one on which the lid is mounted is applied. In this case, the screw rod is erected on the lid receiving rod.

  According to such a configuration, the nut member disposed in the hollow portion of the cylindrical fixture is screwed into the screw rod and tightened, whereby the lower surface of the cylindrical fixture and the upper surface of the bottom plate of the storage recess are brought into pressure contact with each other, and the groove cover Can be fixed to the lid receiving frame. Here, since the cylindrical fixture is fixed in surface contact with the bottom plate of the housing recess through the tightening action, a relatively wide contact surface can be secured. Therefore, there is also an advantage that the groove lid can be easily fixed stably to the lid receiving frame.

  Furthermore, in the state fixed as described above, the upper surface of the cylindrical fixture is substantially flush with the upper surface of the groove lid, and the upper portion of the storage recess can be shielded by the cylindrical fixture. A concave space portion h (see FIG. 11) does not occur, thereby ensuring the safety of walking. In addition, since the cylindrical fixture is fixed through the tightening action of the nut member and the screw rod, a stable fixed state in which the cylindrical fixture is not lifted or detached due to an impact is obtained.

  Since the nut member can be rotated by a rotation operation tool engaged with an engagement hole formed in the upper end portion, a clearance allowing insertion of a box wrench k (see FIG. 11) around the nut member. There is no need to form. Therefore, since it is easy to ensure a relatively wide upper surface of the cylindrical fixture, it is possible to prevent as much as possible, for example, that a heel of a high heel or a tip of a cane is caught. Further, since the nut member is disposed in the hollow portion of the cylindrical fixture, it is difficult to loosen in the above-described fixed state, and the fixed state can be stably maintained over a relatively long period. Even if loosening occurs, the nut member is difficult to come off, so that the cylindrical fixture can be maintained in a state where it is embedded in the housing recess.

  In the above-described groove lid fixing device, a configuration is proposed in which the through hole of the bottom plate of the storage recess forms a long hole shape along the longitudinal direction of the drainage channel.

  According to such a configuration, the groove lid can be moved with respect to the lid receiving frame within the range of the long hole size of the through hole, so that the groove lid can be disposed at a desired position. That is, the through hole can be easily positioned at a desired position by inserting the screw rod, and can be appropriately modified and arranged at a desired position.

  The groove lid fixing device described above, wherein the insertion hole of the lower plate portion of the cylindrical fixture has a long hole shape along the longitudinal direction of the lid receiving frame, and is formed to have a hole width that prevents the nut member from being inserted. A configuration is proposed. Here, the hole width is a width along a direction orthogonal to the longitudinal direction of the lid receiving frame.

  According to such a configuration, the cylindrical fixture can be moved with respect to the screw rod within the range of the long hole size of the insertion hole, so that the arrangement of the cylindrical fixture can be easily positioned appropriately. Here, in the case of the configuration provided with the long hole-shaped through-hole described above, it is easier to position the cylindrical fixture at a desired position, and accordingly, workability for fixing the groove lid to the lid receiving frame is improved. To do. Moreover, since the hole width of the insertion hole is incapable of inserting the nut member, it is possible to further stabilize the fixed state through the tightening action of the nut member.

  In the above-described groove lid fixing device, the operation hole of the upper plate portion of the cylindrical fixture is formed so as to face the long hole-shaped insertion hole and have substantially the same shape as the insertion hole. Proposed.

  According to this configuration, the turning tool can be inserted from the operation hole according to the fixing position of the cylindrical fixing tool, and the cylindrical fixing tool positioned at the desired position is stably fixed by the tightening action of the nut member. it can. Further, since the nut member cannot be inserted through the operation hole and is held in the hollow portion of the cylindrical fixture, even if the nut member is loosened from the tightened state with the screw rod, it is difficult to come off. It can be stably maintained in a state of being embedded in the storage recess. In addition, the cylindrical fixture has an advantage that it is easy to form an insertion hole and an operation hole during its manufacture.

  In the groove lid fixing device described above, the nut member includes, on the outer periphery thereof, a pair of side surface portions facing each other and a wide side portion facing each other wider than the width between the side surface portions, It is formed so as to be able to enter and exit into the hollow portion of the cylindrical fixture and to be non-rotatable within the hollow portion, and to allow the nut member to be fitted along the pair of side surfaces, and to be narrower than the width between the opposed wide side portions A state in which a detent having a pair of elastic side pieces facing each other forming a gap is provided, and the detent and a nut member fitted between both elastic side pieces are arranged in the cavity of the cylindrical fixing portion Thus, a configuration is proposed in which the nut member is rotatable by resisting the elastic force of the elastic side piece.

  According to such a configuration, the cylindrical fixing portion in which the detent member and the nut member fitted between both elastic side pieces are arranged in the hollow portion is embedded in the storage recess of the groove lid, and the nut member is By rotating against the elastic force of the elastic side piece of the stopper, it can be screwed into the screw rod and tightened, and in the tightened state, the rotation of the nut member is suppressed and the tightening is performed. It can suppress that a state loosens. This is due to the fact that the wide side portion of the nut member cannot rotate between the elastic side pieces unless a force against the elastic force of both elastic side pieces is applied to widen the gap. Thus, in this structure, it can suppress that the tightening state of the said nut member loosens by the vibration which arises by passage of a person or a motor vehicle.

  Here, the detent is provided with a through-hole through which the screw rod can be inserted, has a rectangular bottom plate portion on which the nut member is mounted, and the elastic side pieces stand upright from both side edges of the bottom plate portion. The structure which is provided in is proposed. In addition, as a detent | locking tool of this structure, the structure of a cross-sectional substantially U shape is suitable.

  According to such a configuration, the tightening action of the nut member allows the detent to be clamped and fixed between the nut member and the lower plate portion of the cylindrical fixing portion, thereby suppressing the loosening of the nut member. The effect is further improved.

  In the present invention, a cylindrical fixture having a nut member disposed in a hollow portion is embedded in a storage recess of a groove lid mounted on a lid receiving frame, and a through hole of the storage recess and an insertion hole of the cylindrical fixture are provided. Since the groove cover and the groove receiving frame are fixed by screwing the nut member into the inserted screw rod, it is easy to stably fix the groove cover to the groove receiving frame via the cylindrical fixture. . And in the fixed state, since the upper part of a storage recessed part is shielded, the safety of passage can be ensured in connection with this. Further, since the nut member is tightened and screwed to the screw rod in the hollow portion of the cylindrical fixture, a stable fixed state in which these constituent members are not lifted or detached by impact is obtained. The cylindrical fixture can be stably maintained for a relatively long time in an embedded state.

  Further, the groove lid fixing device includes a detent having a pair of elastic side pieces that allow the nut member to be fitted along a side surface portion thereof and that is narrower than the width of the wide side portion. In the case of the above-described configuration, a cylindrical fixture in which a detent and a nut member fitted between the elastic side piece portions are arranged in the cavity portion is embedded in a storage recess of the groove lid, and the elastic side piece portion is Since the nut member is restrained from rotating according to the elastic force of the elastic side piece in a state in which the nut member is screwed and tightened against the elastic force, vibration generated by the passage of a person or an automobile Therefore, it is possible to suppress the tightening state of the nut member from being loosened.

It is a longitudinal cross-sectional view which shows the construction state of the groove cover 13 by the fixing device 29 concerning Example 1. FIG. It is a top view which shows the construction state of the groove cover 13 same as the above. It is a longitudinal cross-sectional view explaining the attachment process of the fixing device 29 same as the above. It is a top view which shows the other construction state of the fixing device 29 same as the above. It is a longitudinal cross-sectional view which shows the construction state of the groove cover 51 by the fixing device 29 concerning Example 2. FIG. It is a top view which shows the construction state of the groove cover 51 same as the above. (A) An enlarged longitudinal sectional view along the lateral direction of the groove lid 13, and (B) An enlarged longitudinal section along the longitudinal direction of the groove lid 13, showing the construction state of the groove lid 13 by the fixing device 69 according to the third embodiment. FIG. It is an enlarged plan view which shows the construction state of the groove cover 13 same as the above. It is the (A) top view showing the nut member 71 and the detent tool 81 which comprise the fixing device 69 same as the above, (B) The front view. It is (A) top view showing the cylindrical fixing tool 91 of another example, and (B) longitudinal cross-sectional view. It is a longitudinal cross-sectional view which shows the fixing device of the conventional groove cover. It is a perspective view which shows the conventional cap j.

  An embodiment of a groove lid fixing device according to the present invention will be described with reference to the accompanying drawings.

  As shown in FIG. 1, the drainage channel 1 is constructed by concrete 11 placed in a substantially U-shaped section at a predetermined depth position of the ground. A pavement material 10 such as a tile 12 is provided continuously in the upper periphery of the drainage channel 1.

  As shown in FIGS. 1 and 3, as shown in FIGS. 1 and 3, a substantially L-shaped left and right side having a horizontal edge 5 and a vertical edge 6 rising from the outer end of the horizontal edge 5 are provided at the upper inner edges of the drainage channel 1. A pair of lid receiving frames 4, 4 are arranged along the longitudinal direction of the drainage channel 1. The lid receiving frames 4, 4 are made of a metal angle material, and the length thereof is a predetermined length along the longitudinal direction of the drainage groove 1.

  At the horizontal edge portions 5 and 5 of the lid receiving frames 4 and 4 described above, screw rods 9 are respectively erected at positions corresponding to at least the vicinity of both ends in the longitudinal direction of the groove lid 13 described later. This screw rod 9 is constituted by a male screw portion of a welding bolt that is inserted from below into the horizontal edge portion 5 of the lid receiving frame 4 and protrudes above the horizontal edge portion 5 by a predetermined length (FIG. 3 ( The welding bolt is fixed to the lower surface of the horizontal edge portion 5 of the lid receiving frame 4 through welding so as not to rotate.

  A groove lid 13 is mounted on the horizontal edge portions 5 and 5 of the lid receiving frames 4 and 4. As shown in FIG. 2, the groove lid 13 includes a plurality of main bars 14 arranged in parallel at a predetermined interval along a direction orthogonal to the lid receiving frame 4, and an appropriate number of cross bars 15 orthogonal to the main bars 14. It consists of a metallic grating provided with side bars 16 and 16 disposed at the left and right ends of each main bar 14 along the cross bar 15 and rides on the horizontal edges 5 and 5 of the lid receiving frames 4 and 4. By being mounted, the opening 2 provided between the vertical edges 6 and 6 of the lid receiving frames 4 and 4 is covered so as to be able to pass water. In addition, the mutual space | interval of each main bar 14 is set to the predetermined space | interval of 9 mm or less at which the tip of a high-heeled heel or a cane is difficult to fit.

  On both the left and right sides of the groove lid 13, storage recesses 18 are respectively provided at positions corresponding to the screw rods 9 of the lid receiving frame 4. The storage recesses 18 are formed by cutting out the end portions of an appropriate number (two in the illustrated example) of the main bars 14 adjacent to each other, so that the two main bars 14 and 14 and the side bars 16 located on both sides thereof are cut off. And the other side is partitioned by a short partition bar 17 provided between the main bars 14 on both sides so as to face the side bar 16. Here, the partition bar 17 is welded to the two main bars 14, 14 whose both ends are welded to the two main bars 14, 14 located on both sides of the partition bar 17. A rectangular bottom plate 19 is disposed so as to shield the bottom of the space surrounded by the two main bars 14 and 14, the side bar 16, and the partition bar 17. The bottom plate 19 is welded to the side surfaces of the two main bars 14, 14, the side bar 16, and the partition bar 17 at the four edges. A through-hole 20 that can be inserted is formed.

  Here, the through hole 20 provided in the bottom plate 19 is formed in a long hole shape along the longitudinal direction of the drainage channel 1 as shown in FIG. 2, and the hole width along the direction orthogonal to the longitudinal direction is formed. The size of the screw rod 9 is loosely fitted. Thus, the groove lid 13 can be moved in the longitudinal direction and the width direction within the range of the hole shape dimensions with the screw rod 9 inserted through the through hole 20 (see FIG. 4).

  A cylindrical fixture 31 is disposed in the housing recess 18 so as to be able to enter and exit. As shown in FIGS. 1 to 3, the cylindrical fixture 31 includes a rectangular lower plate portion 32, side plate portions 33 and 33 erected from both side edges of the lower plate portion 32, and the side plate portions 33 and 33. It has a square cylinder shape with a cross-section of a square shape composed of an upper plate portion 34 coupled to the upper edge. Here, the lower plate portion 32 and the upper plate portion 34 are formed so as to face each other, and the both side plate portions 33 and 33 are formed to face each other, and a hollow portion 35 having a rectangular cross section is formed in the inside surrounded by them. Is formed. The cylindrical fixture 31 is stored in the storage recess 18 so that the lower surface of the lower plate portion 32 is in surface contact with the upper surface of the bottom plate 19 of the storage recess 18, and the upper surface of the upper plate portion 34 is the groove cover. 13 is substantially flush with the upper surface of 13. In this state, the upper portion of the storage recess 18 is substantially shielded by the upper plate portion 34 of the cylindrical fixture 31. Thus, the dimensional shape of the cylindrical fixture 31 is set so as to be stored in the storage recess 18.

  Further, the lower plate portion 32 of the cylindrical fixture 31 is provided with a long hole-shaped insertion hole 36 through which the screw rod 9 can be inserted from below, and the upper plate portion 34 faces the insertion hole 36. A long hole-shaped operation hole 37 is provided. The insertion hole 36 and the operation hole 37 are formed in the same shape and dimension, have a long hole shape along the longitudinal direction of the drainage channel 1, and the hole width along the direction orthogonal to the longitudinal direction The dimensions are such that the screw rod 9 is loosely fitted. And this hole width is formed in the width dimension which cannot penetrate the nut member 21 mentioned later. Thereby, the nut member 21 cannot enter and exit through the insertion hole 36 and the operation hole 37. The insertion hole 36 and the operation hole 37 may be formed in different shapes and dimensions.

  The screw rod 9 inserted through the through hole 20 can be screwed into the nut member 21 in the hollow portion 35 of the cylindrical fixture 31 in a state where the cylindrical fixture 31 is stored in the storage recess 18. It is set to a length dimension that projects to a predetermined height position. A nut member 21 is screwed onto the protruding end of the screw rod 9.

  The nut member 21 can be inserted into the hollow portion 35 of the cylindrical fixture 31 from the opening at both ends thereof, and cannot be inserted / extracted from the insertion hole 36 and the operation hole 37 of the cylindrical fixture 31. It is formed in a hexagonal column shape in which a length dimension and a width dimension are set. The width dimension is such that the lower end surface of the nut member 21 is in contact with the upper surface of the bottom plate 19 in a state in which the nut member 21 is screwed into the screw rod 9, and the contact area is further widened. It is preferable that it is set so that it can be secured.

  The nut member 21 has an engagement hole 22 having a hexagonal cross section capable of engaging the tip of a hexagon wrench 60 (see FIG. 3B) as a turning operation tool at the upper end thereof. And the screw hole 23 which can be screwed together with the said screw rod 9 is formed in the lower end part. These engagement holes 22 and screw holes 23 are formed so as to communicate in the vertical direction. The nut member 21 is not limited to the hexagonal column shape, and may be another prismatic shape or a cylindrical shape. Further, the engagement hole 22 may be a square hole having a cross-sectional shape such as a square, or a hole shape capable of engaging a flathead screwdriver or a positive screwdriver. A rotating operation tool corresponding to the hole shape of the engagement hole is used.

  In the first embodiment, the screw lid 9, the storage recess 18, the nut member 21, and the cylindrical fixture 31 described above constitute the fixing device 29 for the groove lid 13.

Next, a usage mode of the fixing device 29 for the groove lid 13 will be described.
As shown in FIG. 3 (A), the groove lid 13 is mounted on the lid receiving frames 4 and 4 disposed on the upper inner edges of the drainage channel 1 facing each other. At this time, since the through hole 20 of the housing recess 18 of the groove lid 13 is freely fitted onto the screw rod 9 of the lid receiving frame 4, the screw rod 9 serves as a guide and the groove lid 13 is mounted. It can be positioned and arranged relatively easily with respect to the drainage channel 1. Thereby, the replacement | exchange operation | work of the groove cover 13, etc. can be performed comparatively easily.

  When the groove lid 13 is mounted on the lid receiving frames 4 and 4 and the screw rod 9 standing on the lid receiving frame 4 is inserted through the through hole 20 of the bottom plate 19 from below, as shown in FIG. In addition, the cylindrical fixture 31 in which the nut member 21 is disposed in the cavity 35 is disposed in the storage recess 18. Here, the screw rod 9 protruding in the storage recess 18 is inserted into the hollow portion 35 of the cylindrical fixture 31 through the insertion hole 36, and the nut member 21 is rotated from the operation hole 37 with a hexagon wrench. And screwed into the screw rod 9. By this screwing, the cylindrical fixture 31 enters the storage recess 18, and the nut member 21 is tightened so that the lower surface of the cylindrical fixture 31 is pressed against the upper surface of the bottom plate 19 of the storage recess 18. By this tightening action, the groove lid 13 is fixed to the lid receiving frame 4 via the cylindrical fixture 31 as shown in FIG. In this fixed state, the upper surface of the cylindrical fixture 31 is substantially flush with the upper surface of the groove lid 13 and shields the upper end portion of the storage recess 18 (see FIG. 1). Thus, in the state where the cylindrical fixture 31 is embedded in the storage recess 18, the nut member 21 and the screw rod 9 are screwed together in a tightened state. These constituent members are in a stable fixed state in which they are not lifted or detached by impact. In particular, the nut member 21 is screwed in the hollow portion 35 of the cylindrical fixture 31 and cannot be discharged out of the hollow portion 35 in an embedded state. The fixed state can be maintained over the entire range. Moreover, since the upper part of the storage recessed part 18 is shielded by the cylindrical fixing tool 31, the conventional recessed space part h (refer FIG. 11) does not arise, and this ensures the safety of passage, such as walking and running. Is done.

  Further, when the cylindrical fixture 31 is embedded, the screw rod 9 inserted into the insertion hole 36 serves as a guide, and the insertion hole 36 and the operation hole 37 have a long hole shape. Thus, the positioning of the groove lid 13 with respect to the groove receiving frames 4 and 4 is not hindered, and the positioning is facilitated. Thereby, the mounting operation of the cylindrical fixture 31 can be performed relatively easily, and the workability can be improved when the groove lid 13 is removed. As shown in FIG. 4A, the groove lid 13 can be stably fixed even at a position slid in the longitudinal direction and the lateral direction with respect to the lid receiving frames 4 and 4. Furthermore, even if the groove lid 13 is attached to the lid receiving frames 4 and 4 in an inclined state as shown in FIG.

  As shown in FIG. 5, the drainage channel 1 in the second embodiment is constructed by embedding U-shaped grooves 41 having a substantially U-shaped cross section in a row at a predetermined depth position on the ground. A pair of left and right support frames 45, 45 having an L-shaped cross section are fixed to the upper ends of the side walls 42, 42 of the U-shaped groove 41, and a plurality of lid receiving rods 49 are horizontally mounted between the support frames 45, 45. Has been. Here, the support frame 45 includes a vertical rising edge 46 and a horizontal edge 47 coupled to each other, and both ends of the lid receiving rod 49 are joined to the rising edges 46 and 46 of the left and right support frames 45 and 45. The pair of left and right support frames 45, 45 and a plurality of lid receiving rods 49 constitute the lid receiving frame 43 of the present invention. The lid receiving rod 49 is made of a metal square pipe, and is disposed at a position corresponding to at least the vicinity of both ends in the longitudinal direction of a groove lid 51 described later. In the lid receiving rod 49, screw rods 9 are respectively erected at the intermediate portion in the width direction. Here, the bolts constituting the screw rod 9 are fixed so as not to be rotatable by welding the heads of the bolts to the lower surface of the lid receiving rod 49. In addition, on the left and right horizontal edges 47, 47 of the lid receiving frame 43 arranged in this way, the pavement material 10 such as concrete 11 and tile 12 laid in the upper periphery of the drainage channel 1 is continuously laid. Has been.

  Further, as shown in FIG. 6, the groove lid 51 mounted on each lid receiving rod 49 of the lid receiving frame 43 is arranged in parallel at a predetermined interval (9 mm or less) along the longitudinal direction of the support frames 45, 45. The main bar 52 and an appropriate number of cross bars 53 orthogonal to the main bar 52 are assembled in a lattice shape, and further, it is made of a metal grating in which end bars 54 are joined to both ends in the longitudinal direction. In addition, each configuration of the partition bar 17 and the bottom plate 19 for defining the storage recess 18, the cylindrical fixture 31 embedded in the storage recess 18, and the nut member 21 screwed into the screw rod 9 has been described above. The components are the same as those in the first embodiment, and the same reference numerals are given to these components, and redundant description is omitted.

  In the fixing device 29 for the groove lid 51 described above, the groove lid 51 is mounted on the lid receiving rod 49, and the screw rod 9 erected on the lid receiving rod 49 is inserted into the through hole 20 of the bottom plate 19. When the nut member 21 disposed in the hollow portion 35 of the cylindrical fixture 31 is screwed into the screw rod 9 and tightened in a state of being inserted from below, the lower surface of the cylindrical fixture 31 is attached to the bottom plate 19. The groove lid 51 is fixed to the lid receiving frame 43 through the cylindrical fixture 31 while being pressed against the upper surface. Here, in a state where the cylindrical fixture 31 is embedded in the storage recess 18, the upper surface of the cylindrical fixture 31 and the upper surface of the groove lid 51 are substantially flush, and the upper portion of the storage recess 18 is shielded. Is done. Even in the configuration of the second embodiment, the same effects as those of the first embodiment described above can be achieved.

  The fixing device 69 for the groove lid 13 according to the third embodiment includes a nut member 71 and a detent provided in the hollow portion 35 of the cylindrical fixture 31 similar to the above-described first embodiment, as shown in FIGS. 81. Here, except for the nut member 71 and the detent member 81, the configuration is the same as that of the first embodiment described above, and the same components are denoted by the same reference numerals and the description thereof is omitted. The fixing device 69 is for fixing the groove lid 13 to the drainage channel 1 similar to that of the first embodiment.

  As shown in FIG. 9, the nut member 71 includes a columnar lower end 73 having a short height and a hexagonal columnar main body 72 formed on the upper side of the lower end 73. Here, the outer diameter of the lower end 73 is larger than the outer diameter of the circumscribed circle of the main body 72. As in the first embodiment described above, the nut member 71 is inserted into the hollow portion 35 of the cylindrical fixture 31 through the opening at both ends thereof, and the insertion hole 36 of the cylindrical fixture 31 and The length dimension and the width dimension are set so as to prevent entry / exit from the operation hole 37.

  The main body portion 72 of the nut member 71 is formed in a hexagonal column shape having a substantially regular hexagonal cross section inscribed in a virtual circle, and includes three sets of a pair of side surface portions 74a to 74c facing each other. At the same time, there are provided three sets of wide side portions 75a to 75c that are opposed to each other and are constituted by respective corner portions. And the width dimension (distance) between the wide side parts 75a-75c which opposes is large compared with the width dimension between a pair of side part 74a-74c.

  Further, the nut member 71 includes the engagement hole 22 and the screw hole 23 as in the first embodiment. The nut member 71 is limited to a hexagonal column shape as long as the main body portion 72 has at least a pair of side portions and wide side portions facing each other that are wider than the width of the side portions. However, it may be in the form of another prism, or may have a configuration including a planar side surface portion and a curved wide side portion.

  On the other hand, as shown in FIG. 9, the detent member 81 includes a rectangular bottom plate portion 82 and a pair of elastic side pieces 83, 83 that rise upward from opposite side edges of the bottom plate portion 82. It has a substantially U-shaped cross section. This detent tool 81 is formed of a stainless steel band for springs (specifically, SUS304-CSP), and has a function as a so-called leaf spring.

  Here, the bottom plate portion 82 is formed with a through hole 84 through which the screw rod 9 can be inserted. Further, the pair of elastic side pieces 83 and 83 are slightly inclined in the direction approaching each other as compared with the vertical direction, and bent upper end portions 86 and 86 are formed at the upper end edges thereof, respectively. Has been. Here, the detent member 81 has a bottom plate portion 82 on which the lower end portion 73 of the nut member 71 can be mounted, and the nut member 71 can be fitted between the pair of elastic side pieces 83, 83. The shape dimension is set. That is, the distance between the bent upper end portions 86 and 86 of the pair of elastic side piece portions 83 and 83 is set to be slightly narrower than the width dimension of the pair of side surface portions 74a to 74c of the nut member 71. ing. Therefore, the nut member 71 can be fitted between the pair of elastic side pieces 83, 83 in the direction along the pair of side surface portions 74a to 74c. In addition, as for a pair of elastic side piece parts 83 and 83, the space | interval between bending upper end parts 86 and 86 may be equivalent to the width dimension of a pair of side part 74a-74c of the nut member 71.

  Further, the size and shape of the detent member 81 are set so that the detent member 81 can be inserted into the hollow portion 35 of the cylindrical fixture 31 from the opening at both ends thereof and cannot be rotated in the hollow portion 35. . The pair of elastic side pieces 83 and 83 may have a configuration formed along the vertical direction, a configuration inclined outward, or the like in addition to the configuration inclined inward. Moreover, it is good also as a structure which is not provided with the bending upper end parts 86 and 86. FIG.

  In the fixing device 69 for the groove lid 13 according to the third embodiment, the nut member 71 is fitted between the elastic side pieces 83 and 83 of the detent member 81 as shown in FIGS. In this state, the detent tool 81 is inserted into the hollow portion 35 of the cylindrical fixture 31 along the direction orthogonal to the elastic side piece 83. Then, the groove lid 13 is placed on the lid receiving frames 4, 4, and the detent member 81 is inserted in a state where the screw rod 9 erected on the lid receiving frame 4 is inserted into the through hole 20 of the bottom plate 19 from below. And the nut member 71 and the cylindrical fixture 31 disposed in the cavity 35 is disposed in the storage recess 18. As a result, the nut member 71 is screwed and tightened into the screw rod 9 inserted through the through hole 20 of the bottom plate 19 and the through hole 84 of the detent member 81, whereby the lower surface of the cylindrical fixture 31 is fixed to the bottom plate 19. The groove lid 13 is fixed to the lid receiving frame 4 via the cylindrical fixture 31. Here, the rotation of the nut member 71 is suppressed by the elastic force of both elastic side pieces 83, 83 of the detent 81, but by applying a force against the elastic force using a hexagon wrench. It can be turned and can be screwed into the screw rod 9. In the fastened state, the rotation of the nut member 71 is suppressed by the elastic force of both elastic side pieces 83 and 83 of the detent tool 81. This is because the nut member 71 cannot be rotated against the elastic force of both elastic side pieces 83 and 83 of the detent member 81 unless a turning tool such as a hexagon wrench is used. is there. Further, in the fastening state, the detent member 81 is sandwiched and fixed by the nut member 71 and the bottom plate 19 of the cylindrical fixture 31. From the above, it is possible to prevent the tightening state of the nut member 71 from being loosened by vibrations generated by a person passing through the groove lid 13 or an automobile.

  The configuration of the third embodiment has the same effects as those of the first embodiment described above in addition to the above-described loosening suppression effect of the nut member 71.

  Further, in the configuration of the third embodiment described above, the detent member 81 is configured to include the bottom plate portion 82 on which the nut member 71 is mounted, but may be configured not to include the bottom plate portion. For example, a substantially U-shaped section or a substantially V-shaped section having a pair of elastic side pieces so as to support the nut member 71 from the side may be used.

  On the other hand, as another example of the above-described third embodiment, as shown in FIG. 10, the cylindrical fixture 91 has a protrusion 92 a that prevents the nut member 71 and the detent member 81 disposed in the cavity 35 from falling off. A configuration with 92b is also proposed. Here, the protrusions 92 a and 92 b are formed so as to protrude into the cavity 35 at both ends of the lower plate portion 32 of the cylindrical fixture 91. And the protrusion 92a is provided in the center part of one opening end, and the protrusion length of this protrusion 92a is made so that it cannot enter / exit in the state which mounts the nut member 71 on the detent tool 81. Is set. Further, the protrusion 92b is provided near the side of the other opening end, and can be arranged in the cavity 35 by pushing the nut member 71 from the outside while being mounted on the detent 81. It is. Furthermore, if it arrange | positions in the cavity part 35, it cannot take out, unless the same external force is applied. The protrusion 92b is formed so as to have such a protruding length. Therefore, while the nut member 71 and the detent member 81 are arranged in the cavity portion 35, the nut member 71 and the detent tool 81 do not fall off by coming into contact with the protrusion 92 a at the X position in the cavity portion 35 (see FIG. 10B). At the Y position (see FIG. 10 (B)), it abuts against the protrusion 92b and does not fall off.

  According to the configuration of such another example, when the nut member 71 is pushed into the hollow portion 35 of the cylindrical fixture 91 from the other opening provided with the protrusion 92b while being mounted on the detent 81. The nut member 71 and the detent member 81 can be prevented from falling off from the cylindrical fixture 91. Therefore, in the work of fixing the groove lid 13, the workability can be improved and the loss of the nut member 71 and the detent member 81 can be prevented.

  In this alternative example, the cylindrical fixture 91 in which the nut member 71 and the detent member 81 of the third embodiment are arranged is illustrated, but the present invention is not limited to this, and can also be applied to the cylindrical fixture of the first and second embodiments. It is. Furthermore, the protrusions 92a and 92b can be provided not only on the lower plate portion but also on the side plate portion and the upper plate portion.

  The present invention is not limited to the configurations of the above-described embodiments, and configurations other than the embodiments can be implemented with appropriate modifications within the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Drain channel 4,43 Lid receiving frame 9 Screw rod 13,51 Groove lid 18 Storage recessed part 19 Bottom plate 20 Through-hole 21,71 Nut member 22 Engagement hole 23 Operation hole 29,69 Fixing device 31,91 Cylindrical fixing tool 32 Lower plate portion 33 Upper plate portion 35 Cavity portion 36 Insertion hole 37 Operation holes 74a to 74c Side surface portions 75a to 75c Wide side portion 81 Detent tool 82 Bottom plate portion 83 Elastic side piece portion 84 Through hole

Claims (6)

In the groove lid fixing device for fixing the groove lid mounted on the lid receiving frame provided in the drainage channel to the lid receiving frame,
A screw rod standing on the lid receiving frame;
A storage recess provided with a bottom plate disposed at a predetermined position of a groove lid corresponding to the screw rod and having a through hole through which the screw rod can be inserted from below;
A nut member in which an engagement hole capable of engaging with a rotating operation tool is formed at an upper end portion and a screw hole capable of being screwed with the screw rod is formed at a lower end portion;
An insertion hole through which the screw rod can be inserted from below, with the lower surface being in surface contact with the bottom plate of the storage recess and the upper surface being substantially flush with the upper surface of the groove lid A lower plate portion formed with an upper plate portion formed with an operation hole through which the engaging tip of the turning operation tool can be inserted, and a cavity portion through which the nut member can be inserted and removed from both ends. And a cylindrical fixing tool having a B-shaped cross section,
A cylindrical fixture having the nut member disposed in the cavity is embedded in a storage recess of a groove lid mounted on a lid receiving frame, and the nut is inserted into a screw rod that is inserted through the through hole of the storage recess and the insertion hole. A groove lid fixing device characterized in that a groove lid and a groove receiving frame are fixed via a cylindrical fixture by screwing members together.   2. The groove lid fixing device according to claim 1, wherein the through hole of the bottom plate of the housing recess has a long hole shape along the longitudinal direction of the drainage groove.   The insertion hole of the lower plate portion of the cylindrical fixture has a long hole shape along the longitudinal direction of the drainage groove, and is formed to have a hole width that prevents the nut member from being inserted. The fixing device of the groove cover of Claim 1 or Claim 2.   4. The groove cover according to claim 3, wherein the operation hole of the upper plate portion of the cylindrical fixture is formed so as to face the long hole-shaped insertion hole and have substantially the same shape as the insertion hole. Fixing device. The nut member includes, on its outer periphery, a pair of side portions facing each other and wide side portions facing each other wider than the width between the side portions,
It is formed so as to be able to enter and exit into the hollow portion of the cylindrical fixture and to be non-rotatable within the hollow portion, and to allow the nut member to be fitted along the pair of side surfaces, and to be narrower than the width between the opposed wide side portions. A detent having a pair of opposing elastic side pieces that are spaced apart from each other;
The nut member can be rotated by resisting the elastic force of the elastic side piece portion in a state where the detent and the nut member fitted between the elastic side piece portions are arranged in the hollow portion of the cylindrical fixing portion. The groove lid fixing device according to any one of claims 1 to 4, wherein the groove lid fixing device is provided.   The detent is provided with a through-hole through which a screw rod can be inserted, has a rectangular bottom plate portion on which a nut member is mounted, and is provided so that elastic side pieces stand up from both side edges of the bottom plate portion. The groove lid fixing device according to claim 5, wherein the groove lid fixing device is provided.

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