JP2017172164A - Support device for ditch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a support device for a ditch that enables a support frame to be disposed on a site boundary without leaving an interval.SOLUTION: A hanging fixing piece 35a is provided on at least either of right and left support frames 12a, 12b disposed on right and left side walls 4a, 4b constituting a ditch 1, the hanging fixing piece being situated on an inner side of an outer surface of a rising piece 13a of the support frame 12a. A storage interval W is formed between the outer surface of the rising piece 13a and the hanging fixing piece 35a, for housing an outer edge part of a screw rod 27. The configuration enables the rising piece 13a to be installed without leaving an interval from a site boundary t, even when the ditch 1 is installed a little apart from the site boundary t.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a groove supporting device that is disposed in a groove such as a drainage groove and supports a water-permeable covering member such as a grating lid.

  In general, a groove constructed by a groove member having a large open top such as a U-shaped groove supports a water flow covering member made of a grating lid or the like on the left and right side walls constituting the groove. The left and right support frames are arranged, and the upper opening of the groove is shielded by the water-permeable covering member supported by the support frame. As a configuration provided with such a support frame, for example, the configuration of Patent Document 1 has been proposed. By the way, the groove path is often arranged along the site boundary. When the configuration of Patent Document 1 is arranged in the groove path along the site boundary, the site boundary and the support are usually supported. A joint is provided between the frame.

  A specific example is shown in FIG. This is to form a water passage portion 109 narrower than the groove 101 on the side of the site boundary t on the groove 101 by the left and right support frames 112a and 112b. Here, one support frame 112a disposed on the side wall 104 on the site boundary t side of the groove 101 includes a narrow horizontal piece portion 114a mounted on the side wall 104, and the horizontal piece portion 114a. And a rising piece 113a coupled from the outer end. The other support frame 112b includes a wide horizontal piece 114b and a rising piece 113b continuous from the inner end of the horizontal piece 114b, and the outer end of the horizontal piece 114b is connected to the site boundary t. Is mounted on the side wall 104 on the opposite side. The left and right support frames 112a and 112b are connected by a plurality of connecting beams 118 arranged at predetermined intervals in the longitudinal direction of the support frame. Each connecting beam 118 is placed on the upper surfaces of the horizontal pieces 114a and 114b of the left and right support frames 112a and 112b, and is inserted into the insertion holes 115 and 115 formed in the rising pieces 113a and 113b. The parts 114a and 114b are joined by welding. Hanging ends 119 and 119 hanging downward are joined to both ends of each connecting beam 118 by welding so that both hanging portions 119 and 119 are located outside both side walls 104 and 104 of the groove 101. Respectively. The hanging portions 119, 119 are screwed with screw rods 120, 120 that can be press-fitted to the outer wall surface of the side wall 104. The screw rods 120, 120 on both sides are screwed to operate both side walls 104, The left and right support frames 112 a and 112 b connected by the connecting beam 118 are fixed to the side walls 104 and 104 of the groove 101 by being press-fitted to the 104.

JP 2007-154555 A (see FIGS. 8 and 10)

  By the way, in the conventional configuration of FIG. 10 described above, the hanging portion 119 is arranged outside the rising piece portion 113a of the support frame 112a, and the screw rod 120 is screwed to the hanging portion 119. And a joint s must be provided between the rising edge portion 113a of the support frame 112a disposed on the site boundary t side. However, since the joint s is formed by embedding concrete, mortar, or the like after the support frames 112a and 112b are arranged in the groove 101, the joint s is placed between the joint boundary s. If it is not provided, the beauty at the site boundary t can be improved. Furthermore, if the joint s is not provided, the cost and time required for the embedding work of concrete, mortar, or the like as described above can be reduced. For these reasons, there has been a demand for a configuration in which the support frame can be disposed without any gap from the site boundary t.

  Furthermore, the groove path provided along the site boundary mentioned above is formed, for example, by excavating the ground along the site boundary and burying a U-shaped groove. When excavating to just below the site boundary during this construction, the curb stones may sink. Therefore, the ground is usually excavated to a position slightly away from the site boundary, and slightly separated from the site boundary. Embed the groove. Further, since excavation of the ground is performed using a predetermined excavation machine from the outside of the site boundary, the separation distance between the site boundary and the groove (U-shaped groove) differs depending on the construction site. When the groove is buried away from the site boundary in this way, it is difficult to arrange the support frame without a gap from the site boundary, and the joints described above have to be provided. Therefore, even if there is a different separation distance depending on each construction site, there has been a demand for a configuration in which the support frame can be disposed without any gap between the site boundary as described above.

  As described above, the present invention proposes a groove support device that can dispose a support frame at a site boundary without a gap.

  The present invention includes a horizontal piece portion mounted on each of the left and right side walls constituting the groove, and a rising piece portion coupled to one side end of each horizontal piece portion, with a predetermined interval above the groove passage. A pair of support frames that form a water flow portion between both rising pieces arranged opposite to each other, and a plurality of support frames that are arranged at predetermined intervals in the longitudinal direction of the support frame and connect the two support frames A connecting beam, a pair of hanging fixing pieces connected to the both support frames, and a screw rod screwed to each hanging fixing piece, and the hanging fixing pieces are positioned outside the left and right side walls. In addition, in the groove support device having frame fixing means for fixing both support frames to the side walls of the groove by sandwiching both side walls with each screw rod of the hanging fixing piece pair, at least one of the hanging fixing The one part is provided on the inner side of the outer side surface of the rising piece part of the support frame, and the rising piece The inner surface of the hanging fixing piece portion is spaced from the outer surface of the hanging fixing piece portion so that the screw rod screwed to the hanging fixing piece portion does not protrude outward from the outer surface of the rising piece portion. It is the groove | channel support apparatus characterized by setting it as the accommodation space | interval which accommodates at least an outer-end part.

  In such a configuration, the hanging fixing piece portion is provided on the inner side of the outer surface of the rising piece portion of the support frame, and a screw rod screwed into the hanging fixing piece portion is provided on the rising piece portion. Since it does not protrude outward from the outer side surface, the rising piece can be disposed without gaps on the site boundary. Further, the screw rod screwed into the hanging fixing piece portion moves inward and outward with respect to the hanging fixing piece portion by a screwing operation, and contacts the side wall by changing its position. In this configuration, since the outer end portion of the screw rod that changes the position in the inner and outer directions is accommodated within the accommodation interval, the groove path does not protrude outward from the accommodation interval. The support frame can be appropriately positioned and fixed to the side wall. As a result, the support frame is positioned so that the rising piece portion of the support frame is arranged at the site boundary with no gap even for the groove provided at a distance from the site boundary as described above. Can be fixed.

  Furthermore, since the groove is provided relatively long along the site boundary, a difference in the distance from the site boundary tends to occur in the longitudinal direction. Thus, even if there is a difference in the separation distance, according to the present configuration, the rising piece portion can be separated from the site boundary and the gap in the longitudinal direction by appropriately adjusting the position of the screw rod relative to the hanging fixing piece portion. It is possible to arrange without. As described above, according to the present configuration, the support frame can be easily and accurately disposed at a position free from the site boundary by positioning the screw rod in accordance with the separation distance between the site boundary and the groove on the construction site. it can.

  In the above-described groove supporting device of the present invention, the hanging fixing piece provided at an accommodation interval from the outer surface of the rising piece of the support frame is joined to the lower surface of the horizontal piece of the support frame. What is comprised by the site | part dripped below from this horizontal piece part of the connected piece is proposed.

  In such a configuration, the hanging fixing piece portion can be easily provided at a position spaced from the outer surface of the rising piece portion of the support frame.

  In the above-described groove support device of the present invention, an insertion hole formed in the horizontal piece portion of the support frame and opening downward, and a connecting piece fitted into the insertion hole and connected to the support frame. The hanging fixing piece portion provided at an accommodation interval from the outer surface of the rising piece portion of the support frame is constituted by a portion of the connecting piece fitted in the fitting hole that is lowered downward from the horizontal piece portion. What is being proposed is proposed.

  In such a configuration, the hanging fixing piece portion can be easily and accurately provided at a position spaced from the outer surface of the rising piece portion of the support frame by fitting the connecting piece into the insertion hole. Since the insertion hole also determines the longitudinal position of the hanging fixing piece, the left and right hanging fixing pieces are paired by fitting the connecting piece into the fitting hole. The support frame can be easily and accurately provided. Thus, when the hanging fixing piece portion is provided on the support frame, it is not necessary to perform the positioning operation of the hanging fixing piece portion, and the cost and time required for the operation can be reduced.

  In the above-described groove support device of the present invention, a fitting hole formed at a lower portion of the rising piece portion of the support frame and opening outward and downward, a fitting portion fitted into the fitting hole, and the fitting A connecting piece consisting of a hanging part extending downward through a portion extending inward from the lower end of the joint part, provided at an accommodation interval from the outer surface of the rising piece part of the support frame As the drooping fixed piece portion, one constituted by a drooping portion of a connecting piece fitted into the fitting hole is proposed.

  In such a configuration, the hanging fixing piece portion can be easily and accurately provided at a position spaced from the outer surface of the rising piece portion of the support frame by fitting the connecting piece into the insertion hole. And even if it is in this structure, as above-mentioned, it can provide easily and correctly so that a right and left droop fixing piece may become a pair by fitting a connection piece with an insertion hole. Therefore, the positioning work of the hanging fixed piece portion is not required, and the cost and time can be reduced.

  According to the groove supporting device of the present invention, the supporting frame is positioned with respect to the side wall of the groove by the screw rod of the hanging fixing piece, and the holding interval provided on the outer side of the hanging fixing piece is used. Since the outer end portion of the screw rod is accommodated, the rising piece portion of the support frame can be arranged without a gap at the site boundary. And also for the grooves provided at different separation distances at the construction site, the screw rods can be positioned according to the separation distance while accommodating the outer ends of the screw rods in the accommodation interval. The rising piece of the support frame can be arranged at the site boundary without any gap. Furthermore, even if there is a difference in the separation distance in the longitudinal direction of the groove, the support frame can be arranged without gaps between the site boundary in the longitudinal direction by adjusting the positioning of the screw rods according to each difference. it can.

It is a longitudinal cross-sectional view which shows the construction state of 11 A of groove | channel support apparatuses of Example 1. FIG. It is an external appearance perspective view of 11 A of groove supporting apparatuses same as the above. It is a longitudinal cross-sectional view which shows the state which constructed 11 A of groove | channel support apparatuses same as the above in the groove 1 embed | buried in the position where the separation distance R with the site boundary t differs. It is a longitudinal cross-sectional view which shows the construction state of the support apparatus 11B for groove paths of Example 2. FIG. FIG. 6 is a partially enlarged perspective view showing a support frame 12a and a connecting piece 45 in Example 2 in an exploded manner. It is a longitudinal cross-sectional view which shows the construction state of 11 C of groove | channel support apparatuses of Example 3. FIG. It is an external appearance perspective view of 11 C of channel support apparatuses same as the above. FIG. 10 is a partially enlarged perspective view showing a support frame 12a and a connecting piece 55 in Example 3 in an exploded manner. It is a longitudinal cross-sectional view which shows the construction state of support apparatus 11D for groove paths of Example 4. FIG. It is a longitudinal cross-sectional view which shows the construction state of the support frames 112a and 112b of a conventional structure.

  Examples 1-4 according to the present invention will be described below with reference to the accompanying drawings.

  As shown in FIG. 1, the groove 1 is provided so as to be close to a site boundary t with a site 91 on which a curb 92 or the like is installed. Then, as shown in FIG. 2, the groove 1 includes a plurality of groove members 2 formed of U-shaped grooves formed in a substantially U-shaped cross section including a bottom wall 3 and left and right side walls 4 a and 4 b. It is built by embedding in a row at a predetermined depth. Here, the groove member 2 is embedded at a position slightly away from the site boundary t. This is because, as described above, if the ground is excavated to just below the site boundary t, the curb 92 or the like may sink, and it is difficult to excavate with the excavating machine to the very limit of the site boundary t. In this embodiment, the distance between the site boundary t and the groove member 2 (groove 1) is represented as a separation distance R. The separation distance R varies depending on the construction site.

  As shown in FIGS. 1 and 2, the groove supporting device 11 </ b> A according to the first embodiment of the present invention covers the upper opening of the groove 1 so as to allow water to pass, and includes left and right support frames 12 a and 12 b. ing. Here, the one support frame 12a disposed on the side wall 4a on the site boundary t side stands vertically from the horizontal piece portion 14a mounted on the side wall 4a and the outer end of the horizontal piece portion 14a. The horizontal piece portion 14a is formed with a predetermined width wider than the upper surface width of the side wall 4a. As will be described later, the support frame 12a is positioned so that the rising piece 13a is disposed on the site boundary t without a gap, and is placed on the side wall 4a of the groove 1 and in this state, the rising piece 13a is mounted. The outer side surface of the portion 13a is located on the outer side of the outer wall surface 5a of the side wall 4a. On the other hand, the other support frame 12b is formed of a wide horizontal piece 14b whose outer end is mounted on the side wall 4b, and a rising piece 13b that rises vertically from the inner end of the horizontal piece 14b. The rising piece 13b is disposed between the side walls 4a and 4b. The rising piece 13b of the other support frame 12b is disposed opposite to the rising piece 13a of the one support frame 12a at a predetermined interval, and is located near the site boundary t between the side walls 4a and 4b. A water passage 9 is formed between the two rising pieces 13a and 13b arranged in this way, and the upper opening of the groove 1 excluding the water passage 9 is shielded by the horizontal piece 14b of the other support frame 12b. ing.

  Both the support frames 12a and 12b are made of a plate-like metal material made of steel or stainless steel, and the length thereof is a plurality of groove members in a line as shown in FIG. The length is a predetermined length in the longitudinal direction. The rising pieces 13a and 13b and the horizontal pieces 14a and 14b of the support frames 12a and 12b may be formed by bending a single metal plate into an L-shaped cross section, or two metal plates. May be joined by welding so as to have an L-shaped cross section.

  The left and right support frames 12a and 12b are connected by a plurality of connecting beams 15 arranged at predetermined intervals in the longitudinal direction of the support frames 12a and 12b. Each connecting beam 15 is made of a metal square pipe having excellent strength, and has a predetermined length that is slightly longer (or substantially the same) than the width between the outer wall surfaces 5a and 5b of the left and right side walls 4a and 4b constituting the groove 1. It is formed with. Each connecting beam 15 is disposed in contact with the upper surfaces of the horizontal pieces 14a and 14b of the support frames 12a and 12b, and passes through the through-hole 16 formed in the rising piece 13b of the other support frame 12b. The horizontal piece portions 14a and 14b are joined to each other by welding. The left and right ends of the connecting beams 15 that connect the left and right support frames 12a and 12b in such a manner as to be immovable on the side walls 4a and 4b of the groove 1 are horizontal pieces of the support frames 12a and 12b. It is mounted via the parts 14a and 14b.

  Further, in the first embodiment, the support rod 19 passed between the rising pieces 13a and 13b is located near the upper ends of the rising pieces 13a and 13b of the support frames 12a and 12b. A plurality of support frames 12a and 12b are arranged at predetermined intervals in the longitudinal direction. Each support rod 19 is made of a metal square pipe, and both end portions thereof are welded to both rising pieces 13a and 13b.

  Moreover, as shown in FIG. 1, the metal water-permeable covering member 20 is arrange | positioned in the water flow part 9 formed between both standing piece parts 13a and 13b. The metal water-permeable covering member 20 is made of a grating lid made of steel, stainless steel or cast iron, and is detachably mounted on the upper surface of each support rod 19 placed horizontally between both rising pieces 13a, 13b. And installed so as to shield the water passage 9.

Next, the main part of the present invention will be described.
In the connecting beam 15 described above, the two connecting beams 15 and 15 disposed at both ends in the longitudinal direction of the support frames 12a and 12b are opposite to the site boundary t as shown in FIGS. Is connected to the outer wall surface 5b of the side wall 4b on the outer side of the side wall 4b opposite to the site boundary t. It hangs down along. The lower part of this connection piece part 21 is the hanging fixing piece part 22 concerning this invention. A screw rod 27 whose tip is press-contactable with the outer wall surface 5b of the side wall 4b is screwed into the hanging fixing piece portion 22 of the connecting piece portion 21 from the outside. The screw rod 27 is a so-called bolt type composed of a screw body and a screw head 27a.

  On the other hand, the support frame 12a placed on the upper surface of the side wall 4a on the site boundary t side is joined to the lower surface of the horizontal piece portion 14a by a connecting piece 35 having a cross section L shape by welding. The connecting piece 35 includes a rectangular joining portion 35b joined to the horizontal piece portion 14a and a rectangular hanging fixing piece portion 35a continuous downward from the inner end of the joining portion 35b. The connecting piece 35 is formed by bending a metal flat plate such as a steel material, or is formed by joining two metal flat plates to form an L-shaped cross section by welding. Applicable.

  The connecting piece 35 is joined to the support frame 12a so that the outer surface of the hanging fixed piece 35a is positioned at a predetermined distance inward from the outer surface of the rising piece 13a of the support frame 12a. A screw rod 27 similar to that of the connecting piece portion 21 is screwed onto the hanging fixing piece portion 35a of the connecting piece 35, and the tip of the screw rod 27 can be pressed against the outer wall surface 5a of the side wall 4a. It has become. Such connecting pieces 35 are provided at both ends in the longitudinal direction of the support frame 12a, and the respective positions in the longitudinal direction are the two connecting beams 15, 15 provided at both ends in the longitudinal direction of the support frame 12a. And the same position. That is, the hanging fixed piece portion 35a of the connecting piece 35 and the hanging fixed piece portion 22 of the connecting piece portion 21 of the connecting beam 15 are disposed at the same position in the longitudinal direction and face each other. By pressing the tips of the screw rods 27, 27 screwed to the opposite hanging fixing pieces 35a, 22 on both sides in this manner, the side walls 4a, 4b are pressed against the outer wall surfaces 5a, 5b of the side walls 4a, 4b. 4b can be clamped. The screw head 27a of the screw rod 27 is an outer end portion of the screw rod according to the present invention.

  Here, the inner and outer intervals between the outer surface of the hanging fixed piece portion 35a of the connecting piece 35 and the outer surface of the rising piece portion 13a of the support frame 12a are the accommodation interval W according to the present invention. As described above, the accommodation interval W is such that the screw head 27a of the screw rod 27 rises in a state where the tip of the screw rod 27 screwed to the hanging fixing piece 35a is pressed against the outer wall surface 5a of the side wall 4a. The interval is determined so as not to protrude outward from the outer surface of the piece 13a, in other words, the interval for accommodating the screw head 27a. More specifically, the screw rod 27 moves forward and backward with respect to the hanging fixing piece 35a by being screwed, and according to the distance between the hanging fixing piece 35a and the outer wall surface 5a of the side wall 4a. Thus, the inner and outer positions pressed against the outer wall surface 5a are different. That is, the position of the screw rod 27 in the inner and outer direction that is pressed against the side wall 4a varies depending on the position of the support frame 12a with respect to the side wall 4a. In this way, the screw spacing 27 is arranged so that the screw head 27a of the screw rod 27 that changes the position in the inner and outer direction pressed against the side wall 4a and located outside the hanging fixing piece 35a is housed in the housing space W. W is set. Specifically, as described above, the groove 1 (the groove member 2 formed of a U-shaped groove) is buried slightly away from the site boundary t, so that the site boundary t and the side wall 4a of the groove 1 are provided. Based on the empirical value of the generated separation distance R, the accommodation interval W is set so that the screw head 27a of the screw rod 27 can be accommodated even if the rising piece 13a of the support frame 12a is arranged without gaps on the site boundary t. Set. Thereby, as shown in FIG. 3, for example, even when the separation distance R between the site boundary t and the groove 1 is relatively short, the screw rod 27 on the site boundary t side is matched to the separation distance R. By positioning the inner and outer direction positions, the screw head 27a of the screw rod 27 can be accommodated in the accommodation interval W, and the rising piece 13a of the support frame 12a can be arranged on the site boundary t without any gap. Accordingly, at each construction site where the separation distance R between the site boundary t and the groove 1 is different, the screw head 27a does not protrude outward from the outer surface of the rising piece 13a, and the screw rod 27 is inserted into the groove 1. The rising piece 13a can be disposed on the site boundary t without any gap by being pressed against the side wall 4a.

  The above-mentioned groove supporting device 11A of the first embodiment described above has the left and right support frames 12a and 12b connected by a plurality of connecting beams 15 when being applied to the groove 1 buried slightly away from the site boundary t. Is placed on the side walls 4a and 4b of the groove 1 so that the rising piece 13a of the support frame 12a is disposed on the site boundary t without a gap. At this time, the rising piece portion of the support frame 12a in a state where the tip of the screw rod 27 screwed to the hanging fixing piece portion 35a of the support frame 12a on the site boundary t side is in contact with the outer wall surface 5a of the side wall 4a. The position of the screw rod 27 in the inner and outer direction with respect to the hanging fixing piece 35a is positioned so that 13a is arranged with no gap from the site boundary t. Thereby, the tip of the screw rod 27 of the support frame 12a is brought into contact with the outer wall surface of the side wall 4a, and the support frame 12a is placed on the side wall 4a, whereby the rising piece 13a of the support frame 12a is It is arranged without gaps at the site boundary t. Here, the screw head 27a of the positioned screw rod 27 is located within the accommodation interval W of the support frame 12a and does not protrude outward from the outer surface of the rising piece 13a. The screw rod 27 is positioned at the construction site according to the separation distance R between the site boundary t and the side wall 4a of the groove 1.

  After the support frames 12a and 12b are thus placed on the side walls 4a and 4b, the screw rods 27 screwed into the hanging fixing piece 22 of the connecting piece 21 welded to the end of the connecting beam 15 are tightened. And tightening the screw rod 27 on the opposite side of the site boundary t and the screw rod 27 on the site boundary t side by screwing in the direction and pressing the front end thereof to the outer wall surface 5b of the side wall 4b. The support frames 12a and 12b are fixed to the side walls 4a and 4b of the groove 1 via the. And in this fixed state, the pavement material 95 which consists of the concrete 96 and the decorative tile 97 is laid continuously on the horizontal piece part 14b of the support frame 12b. Here, in the first embodiment, the frame fixing according to the present invention is achieved by the connecting piece 35 (the hanging fixing piece portion 35a), the connecting piece portion 21 (the hanging fixing piece portion 22), and the screw rods 27 and 27 on both sides. Means are configured.

  In the configuration of the first embodiment, the support frame 12a disposed on the site boundary t side is provided with the hanging fixing piece portion 35a with an accommodation interval W on the inner side of the outer side surface of the rising piece portion 13a. Since the screw head 27a of the screw rod 27 is accommodated within the accommodation interval W, the outer surface of the rising piece 13a is located on the outermost side on the site boundary t side. And, for the groove 1 installed with a different separation distance R between the site boundary t depending on the construction site, the inside and outside direction of the screw rod 27 on the site boundary t side according to the separation distance R. By positioning the position, the rising piece 13a of the support frame 12a can be disposed on the site boundary t without any gap (see FIGS. 1 and 3). In this way, by arranging without gaps at the site boundary t, it is not necessary to provide the joint s with the site boundary t as in the above-described conventional configuration (see FIG. 10), and the cost and time for forming the joint s. Can be reduced. In addition, the aesthetics at the site boundary after construction is improved.

  Furthermore, the groove 1 is often arranged relatively long along the site boundary t, and a difference in the separation distance R from the site boundary t tends to occur in the longitudinal direction. Also with respect to the groove 1, the rising piece 13 a of the support frame 12 a can be moved to the groove by adjusting the position of the screw rod 27 on the site boundary t side in accordance with the separation distance R that changes in the longitudinal direction. 1 can be easily and accurately arranged without any gap between the site boundary t and the longitudinal direction. This is because the screw head 27a of the screw rod 27 is accommodated in the accommodation interval W even if the position of the screw rod 27 in the inner and outer directions is changed. As described above, the configuration of the first embodiment also has an adjustment function for adjusting the position of the support frame 12 a in the inner and outer directions with respect to the groove 1.

  In the first embodiment, the left and right ends of the plurality of connecting beams 15 are disposed on the upper surfaces of the left and right side walls 4a and 4b of the groove 1 via the horizontal pieces 14a and 14b of the support frames 12a and 12b. Therefore, even when a heavy load such as an automobile is applied, the connecting beam 15 passed over the left and right side walls 4a and 4b of the groove 1 has a predetermined strength that can withstand the load. Can be obtained.

  As shown in FIGS. 4 and 5, the groove support device 11 </ b> B according to the second embodiment has an insertion hole 41 formed in the horizontal piece 14 a of the support frame 12 a disposed on the site boundary t side. A rectangular flat plate-like connecting piece 45 is fitted and suspended. In addition, since the other structure of such insertion hole 41 and the connection piece 45 is the same as Example 1 mentioned above, the same code | symbol was described to the same component and the overlapping description was abbreviate | omitted.

  The fitting hole 41 has a rectangular shape in which the connecting piece 45 can be fitted, and penetrates the horizontal piece portion 14a of the support frame 12a in the vertical direction. The insertion holes 41 are respectively formed at both ends in the longitudinal direction of the support frame 12a, and the respective longitudinal positions thereof are two connecting beams 15, respectively disposed at both ends in the longitudinal direction of the support frame 12a. 15 and the same position. In other words, the insertion hole 41 of the support frame 12a and the through holes 16 at both ends in the longitudinal direction of the support frame 12b are at the same position in the longitudinal direction. Furthermore, the insertion hole 41 is formed at a position spaced a predetermined distance inward from the outer surface of the rising piece 13a of the support frame 12a. This predetermined distance is the same as the above-described accommodation interval in the first embodiment. W is set.

  The connecting piece 45 is made of a rectangular plate made of metal such as steel, and the upper end portion thereof is fitted into the insertion hole 41 and joined to the horizontal piece portion 14a by welding. Thus, the connecting piece 45 is suspended from the horizontal piece portion 14a, and the hanging-down fixing piece portion 45a according to the present invention is constituted by a portion that is suspended downward from the horizontal piece portion 14a. The hanging fixed piece 45a is suspended from the support frame 12a on the outer side of the side wall 4a of the groove 1 along the outer wall surface 5a of the side wall 4a, and the outer side surface of the rising piece 13a of the support frame 12a. Is provided at a position with an accommodation interval W inward from the inside. The hanging fixing piece 45a of the connecting piece 45 fitted in the insertion hole 41 formed at both ends in the longitudinal direction of the support frame 12a is connected to the connecting beam 15 connected to both ends in the longitudinal direction of the support frame 12a. The hanging fixed piece 22 of the connecting piece 21 faces each other.

  A screw rod 27 is screwed onto the hanging fixing piece 45a of the connecting piece 45, and the screw head 27a of the screw rod 27 is accommodated within the accommodation interval W, as in the first embodiment.

  In the construction, the groove supporting device 11B according to the second embodiment has the left and right support frames 12a and 12b, and the rising piece 13a of the support frame 12a has no gap at the site boundary t, as in the first embodiment. After being placed on the side walls 4a, 4b of the groove 1 so as to be arranged, the support frames 12a, 12b are turned into the side walls 4a, 12b by screwing the screw rods 27 on the side opposite to the site boundary t. It is fixed to 4b. Even in such a configuration, similarly to the first embodiment, by positioning the position of the screw rod 27 on the site boundary t side in accordance with the separation distance R between the site boundary t and the groove 1, The screw head 27a of the screw rod 27 is accommodated in the accommodation interval W, and the rising piece 13a of the support frame 12a can be arranged at the site boundary t without a gap. Thereby, it is not necessary to provide the joint s at the site boundary t, the cost and time for forming the joint s can be reduced, and the aesthetics at the site boundary after construction is improved. Further, even in the second embodiment, since the position of the support frame 12a in the inner and outer directions can be adjusted with respect to the groove 1, it can be easily and accurately disposed in the longitudinal direction of the groove 1 with no gap between the site boundary t. .

  Moreover, since the structure of the present Example 2 joins the upper end part of the connection piece 45 by fitting in the insertion hole 41 of the horizontal piece part 14a, the hanging fixing piece part 45a of this connection piece 45 is the support frame 12a. It is firmly fixed to. Furthermore, by fitting the connecting piece 45 into the insertion hole 41, the hanging fixing piece 45a can be easily and accurately positioned at a predetermined position. And the positioning work of the hanging fixed piece 45a is not required, and the cost and time required for the work can be reduced.

  As shown in FIGS. 6 to 8, the groove supporting device 11 </ b> C according to the third embodiment is provided at the end on the site boundary t side of the connecting beams 15 respectively disposed at both ends in the longitudinal direction of the support frame 12 a. A connecting piece 55 to be fitted in a fitting hole 51 formed in the support frame 12a is joined, and a lower portion of the connecting piece 55 is suspended below the support frame 12a. In addition, since the other structure of such a connection piece 55 and the insertion hole 51 is the same as Example 1 mentioned above, the same code | symbol was described to the same component and the overlapping description was abbreviate | omitted.

  The insertion holes 51 of the support frame 12a are formed in a substantially rectangular shape at the lower part of the rising piece part 13a and open outward and downward, and are respectively provided at both ends in the longitudinal direction of the support frame 12a. Each insertion hole 51 is provided at a position facing each through hole 16 at both ends in the longitudinal direction provided in the rising piece 13b of the support frame 12b.

  The connecting piece 55 fitted into the fitting hole 51 includes a fitting portion 55b fitted into the fitting hole 51, a coupling portion 55c coupled inward from the lower end of the fitting portion 55b, It comprises a hanging portion 55a coupled downward from the inner end of the coupling portion 55c. Here, the fitting portion 55b of the connecting piece 55 has a substantially rectangular shape fitted into the fitting hole 51 of the support frame 12a, and the outer surface of the fitting portion 55b is substantially flush with the outer surface of the rising piece portion 13a. It fits in this insertion hole 51 so that it may become. The coupling portion 55c is provided inward from the fitting portion 55b, and the hanging portion 55a hangs at a position spaced from the outer surface of the rising piece portion 13a to the inside. Here, the inner and outer widths of the coupling portion 55c are set so that the predetermined interval becomes the same accommodation interval W as in the first embodiment. Thereby, the drooping portion 55a is hung along the outer wall surface 5a of the side wall 4a of the groove 1 at a position with the accommodation interval W inward from the outer surface of the rising piece 13a. This hanging portion 55a is the hanging fixing piece 55a according to the present invention. In the third embodiment, the connecting piece 55 may be formed by bending a flat plate made of metal such as a steel material, or formed by joining three flat plates.

  Each connecting piece 55 is joined to the inner side surface of the fitting portion 55b by welding the ends of the connecting beams 15 disposed on both sides in the longitudinal direction of the support frame 12a. As a result, the connecting beam 15 has the connecting piece 55 provided at the end on the site boundary t side and the connecting piece 21 provided at the other end, and the hanging fixed piece 55a of the connecting piece 55 The hanging fixed piece 22 of the connecting piece 21 faces each other.

  Further, the screw rod 27 is screwed onto the hanging fixing piece portion 55a of the connecting piece 55, and the screw head 27a of the screw rod 27 is accommodated within the accommodation interval W. .

  In the construction of the groove support device 11C of the third embodiment, the left and right support frames 12a and 12b are connected to each other so that the rising piece 13a of the support frame 12a has no gap at the site boundary t, as in the first embodiment. After being placed on the side walls 4a, 4b of the groove 1 so as to be arranged, the support frames 12a, 12b are turned into the side walls 4a, 12b by screwing the screw rods 27 on the side opposite to the site boundary t. It is fixed to 4b. Even in such a configuration, similarly to the first embodiment, by positioning the position of the screw rod 27 on the site boundary t side in accordance with the separation distance R between the site boundary t and the groove 1, The screw head 27a of the screw rod 27 is accommodated in the accommodation interval W, and the rising piece 13a of the support frame 12a can be arranged at the site boundary t without a gap. Thereby, it is not necessary to provide the joint s at the site boundary t, the cost and time for forming the joint s can be reduced, and the aesthetics at the site boundary after construction is improved. Furthermore, even in the third embodiment, since the position of the support frame 12a in the inner and outer directions can be adjusted with respect to the groove 1, it can be easily and accurately disposed in the longitudinal direction of the groove 1 with no gap between the site boundary t. .

  Further, in the configuration of the third embodiment, since the connecting piece 55 is joined to the end portion of the connecting beam 15, the hanging fixed piece portion 55 a of the connecting piece 55 is supported via the connecting beam 15. It is firmly fixed to 12a. Furthermore, the connecting piece 55 can be accurately and easily positioned at a predetermined position by fitting the connecting piece 55 into the insertion hole 51 of the support frame 12a.

  As shown in FIG. 9, the groove supporting device 11D according to the fourth embodiment has a rectangular flat plate shape at the end on the site boundary t side of the connecting beams 15 respectively disposed at both ends in the longitudinal direction of the support frame 12a. The connecting piece 65 is joined, and the lower part of the connecting piece 65 is suspended downward through the fitting hole 41 opened downward to the horizontal piece portion 14a of the support frame 12a. In addition, since the other structure of such a connection piece 65 is the same as Example 2 mentioned above, the same code | symbol was described to the same component and the overlapping description was abbreviate | omitted.

  The insertion holes 41 provided in the horizontal piece 14a of the support frame 12a are respectively formed at the same positions in the longitudinal direction as the through holes 16 at both ends in the longitudinal direction of the opposing support frame 12b, as in the second embodiment. . And the insertion hole 41 is the rectangular shape which can fit together the connection piece 55, and is penetrated and formed in the up-down direction. Furthermore, the inner and outer intervals between the insertion hole 41 and the outer surface of the rising piece 13a of the support frame 12a are set to the same accommodation interval W as in the second embodiment.

  The connecting piece 65 includes a joining upper part 65b joined to the joining beam 15, and a hanging fixing piece part 65a joined downward from the joining upper part, and on the inner side surface of the joining upper part 65b, The end on the site boundary t side is joined by welding, and the hanging fixing piece 65a is suspended downward from the end of the connecting beam 15. Thereby, the connecting beam 15 is provided with the connecting piece 65 at the end on the site boundary t side and the connecting piece 21 at the other end, and is connected to the hanging fixed piece 65 a of the connecting piece 65. The hanging fixing piece 22 of the piece 21 faces each other.

  The connecting beam 15 to which the connecting piece 65 is joined is placed on the upper surface of the horizontal piece portion 14a by inserting the connecting piece 65 from above into the insertion hole 41 of the horizontal piece portion 14a of the support frame 12a. Then, the connecting beam 15 is joined to the horizontal piece 14a by welding. As a result, the connecting piece 65 is fitted into the insertion hole 41, and the hanging fixing piece 65 a is suspended below the horizontal piece 14 a through the insertion hole 41. Further, a screw rod 27 is screwed onto the hanging fixing piece portion 65a of the connecting piece 65, and the screw head 27a of the screw rod 27 is accommodated within the accommodation interval W. .

  In the construction, the support device 11D for the groove of the fourth embodiment has the left and right support frames 12a and 12b, and the rising piece portion 13a of the support frame 12a has no gap at the site boundary t, as in the first embodiment. After being placed on the side walls 4a, 4b of the groove 1 so as to be arranged, the support frames 12a, 12b are turned into the side walls 4a, 12b by screwing the screw rods 27 on the side opposite to the site boundary t. It is fixed to 4b. Even in such a configuration, similarly to the first embodiment, by positioning the position of the screw rod 27 on the site boundary t side in accordance with the separation distance R between the site boundary t and the groove 1, The screw head 27a of the screw rod 27 is accommodated in the accommodation interval W, and the rising piece 13a of the support frame 12a can be arranged at the site boundary t without a gap. Thereby, it is not necessary to provide the joint s at the site boundary t, the cost and time for forming the joint s can be reduced, and the aesthetics at the site boundary after construction is improved. Furthermore, even in the fourth embodiment, since the position of the support frame 12a in the inner and outer directions can be adjusted with respect to the groove 1, it can be easily and accurately arranged in the longitudinal direction of the groove 1 with no gap between the site boundary t. .

  Furthermore, in the configuration of the fourth embodiment, since the connecting piece 65 is joined to the end of the connecting beam 15, the hanging fixing piece 65 a of the connecting piece 65 is supported via the connecting beam 15. It is firmly fixed to 12a. Furthermore, the connecting piece 65 can be accurately and easily positioned at a predetermined position by fitting the connecting piece 65 into the insertion hole 41 of the support frame 12a.

In the present invention, the present invention is not limited to the first to fourth embodiments described above, and configurations other than the above-described embodiments can be implemented with appropriate modifications within the scope of the present invention.
For example, as another example of the first embodiment, a rectangular flat plate-like connection piece similar to that of the second embodiment may be joined to the lower surface of the horizontal piece portion 14a of the support frame 12a instead of the L-shaped connection piece. good. As another example of the third embodiment, the connection piece and the end of the connection beam may not be joined. Further, as another example of the second embodiment, instead of a flat plate connecting piece, a connecting piece having a cross-section L shape may be fitted from above into the fitting hole 41 of the horizontal piece portion 14a of the support frame 12a. In this configuration, the L-shaped connecting piece is composed of a mounting part placed on the upper surface of the horizontal piece part 14a and a hanging part coupled downward from one end of the mounting part. The hanging fixing piece is configured by the portion of the hanging portion that hangs downward through the insertion hole 41. And in this structure, the insertion hole 41 is formed in the position adjacent to the connection beam 15 distribute | arranged on the horizontal piece part 14a in a longitudinal direction.

  Moreover, in Examples 1-4 mentioned above, although it is the structure which screwed the screw rod 27 which has the screw head 27a to the drooping fixed piece part by the side of site t, it is not restricted to this, All screw types The screw rods may be screwed together. Even when this all screw type screw rod is used, the accommodation interval W for accommodating the outer end portion of the screw rod is set.

  Moreover, in Examples 1-4 mentioned above, although it is the structure which provided the connection piece in the longitudinal direction both ends of the support frame 12a, not only this but the arrangement | positioning number of connection pieces can be set suitably. For example, it is good also as a structure which provides a connection piece part in all the connection beams which connect a support frame, and arrange | positions a connection piece so that all the connection piece parts may be opposed, respectively.

  Further, in the first to fourth embodiments described above, the water flow portion 9 formed between the rising portions 13a and 13b of the left and right support frames 12a and 12b is narrower than the width of the groove 1 and close to the site boundary t. However, the present invention is not limited to this, and the water passing portion may be formed to be substantially the same as the width of the groove 1. In this case, the support frame 12a placed on the side wall 4a on the site boundary t side and the support frame having the same substantially L-shaped cross section are placed on the other side wall 4b. Further, the support frame placed on the other side wall 4b may be configured such that a connecting piece is disposed similarly to the support frame 12a of the first to fourth embodiments.

  On the other hand, as described above, the groove support device of the present invention exemplified in Examples 1 to 4 (and another example) can arrange the rising piece of the support frame without gaps on the site boundary. It is also possible to provide a gap with the site boundary. For example, when excavating as close as possible to the site boundary during construction, there is a risk of crossing the border by mistake.Therefore, avoid such a risk of crossing the border and have a sufficient distance from the site boundary. There is also a case of drilling. In this case, the groove supporting device of the present invention may be provided with a gap between the site boundary and the joint is provided in the gap. However, in the above-described conventional configuration, it is necessary to provide the joint width (interval with the site boundary) to some extent, but according to the configuration of the present invention, the joint width can be reduced as much as possible. Specifically, in the conventional configuration of FIG. 10, since the hanging portion 119 and the screw head of the screw rod 120 are located outside the rising piece portion 113a of the support frame 112a, the joint width needs to be at least about 15 to 30 mm. However, in the configuration of the present invention, since the rising piece 13a of the support frame 12a is located on the outermost side as described above, the width of the joint can be reduced to 10 mm or less. Furthermore, even in the case where such joints are provided, according to the configuration of the present invention, since it has the function of adjusting the position in the inner and outer directions as described above, the boundary of the site extends in the longitudinal direction of the groove. (Interval width) can be kept substantially constant. Thus, according to the groove support device of the present invention, even when a joint is to be provided at the construction site, the width of the joint can be made as narrow as possible and the width of the joint can be made substantially constant. The appearance can be improved as compared with the conventional configuration.

DESCRIPTION OF SYMBOLS 1 Groove 4a, 4b Side wall 9 Water flow part 11A, 11B, 11C, 11D Groove support apparatus 12a, 12b Support frame 13a, 13b Standing piece part 14a, 14b Horizontal piece part 15 Connection beam 22 Hanging fixing piece part 27 Screw Ａ 27a Screw head (outer end of screw 杆)
41, 51 Insertion hole 35, 45, 55, 65 Connecting piece 35a, 45a, 55a, 65a Suspension fixing piece 55b Fitting part t Site boundary W Storage interval

Claims (4)

A horizontal piece portion mounted on each of the left and right side walls constituting the groove path and a rising piece portion coupled to one side end of each horizontal piece portion, facing each other at a predetermined interval above the groove path A pair of support frames forming a water flow portion between both rising pieces arranged in a shape;
A plurality of connecting beams arranged at predetermined intervals in the longitudinal direction of the support frame and connecting both support frames;
A pair of hanging fixing pieces connected to both support frames and a screw rod screwed to each hanging fixing piece, respectively, and both hanging fixing pieces are positioned outside the left and right side walls, In a groove support device comprising frame fixing means for fixing both support frames to the side walls of the groove by sandwiching both side walls with each pair of screw rods,
At least one hanging fixing piece is provided on the inner side of the outer surface of the rising piece of the support frame,
The interval between the outer surface of the rising piece and the hanging fixing piece is set so that the screw rod screwed to the hanging fixing piece does not protrude outward from the outer surface of the rising piece. The groove supporting device is characterized by having an accommodation interval for accommodating at least the outer end portion of the screw rod.   The hanging fixing piece provided at an accommodation interval from the outer surface of the rising piece of the support frame is hung downward from the horizontal piece of the connecting piece joined to the lower surface of the horizontal piece of the supporting frame. The groove supporting device according to claim 1, wherein the groove supporting device is configured by a portion. An insertion hole formed in the horizontal piece of the support frame and opening downward;
A coupling piece fitted into the insertion hole and coupled to the support frame;
The hanging fixing piece portion provided at an accommodation interval from the outer surface of the rising piece portion of the support frame is configured by a portion of the connecting piece fitted in the fitting hole that hangs downward from the horizontal piece portion. The groove supporting apparatus according to claim 1, wherein the groove supporting apparatus is provided. An insertion hole formed at the lower part of the rising piece of the support frame and opening outward and downward;
A coupling piece comprising a fitting portion fitted into the fitting hole and a hanging portion extending downward through a portion extending inward from the lower end of the fitting portion;
The hanging fixing piece portion provided at an accommodation interval from the outer surface of the rising piece portion of the support frame is constituted by a hanging portion of a connecting piece fitted into the fitting hole. The groove support apparatus described.

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