JPH0647986Y2 - Receiving frame such as groove lid - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a receiving frame to which a groove lid such as a grating used for a side groove and a lid of a water collecting basin are attached.

[Prior Art] This type of receiving frame is formed in various shapes such as a linear shape and a rectangular shape by using L-shaped steel and other steel materials, and is often fixedly supported by an anchor embedded in concrete. .

The conventional receiving frame includes one having an anchor integrally and one having an anchor as a separate body and fixed to the receiving frame at the time of construction. The former includes a receiving frame A in which the upper portion of the anchor 5 is integrally joined to the outer surface of the receiving frame main body 1 by welding 6 as shown in FIG. 8, and the latter includes the receiving frame main body 1 as shown in FIG.
A receiving frame A in which a nut 7 is welded to the outer surface of the anchor 7 and a screw portion 51 formed on the top of the anchor 5 is screwed into the nut 7 to be attached is included.

[Problems to be Solved by the Invention] In the above-described two types of receiving frames A, in which the anchor 5 is integrally fixed to the receiving frame main body 1 as shown in FIG. 8, the anchor 5 is fixed during storage or transportation. It takes up a lot of space,
Moreover, there is a problem that other materials are easily damaged by the anchor 5.

On the other hand, in the case where the separate anchor 5 is attached to the receiving frame main body 1 as shown in FIG. 9, the above-mentioned problems rarely occur. However, this is not only expensive to manufacture the anchor 5 because it is necessary to thread the top of the anchor 5 to form the threaded portion 51, but also the anchor 5 and the receiving frame body 1 that have been separately delivered to the construction site. It may cause an inconvenient situation that the number of and does not match, and when attaching the anchor 5 to the receiving frame body 1 at the construction site, screw the screw part 51 to the nut 7 and then rotate the anchor 5 many times. The complicated and time-consuming work of screwing the screw portion 51 into the nut 7 is required. Also, anchor 5
Since the lower inclined portion 52 and the horizontal portion 53 rotate largely horizontally when turning, it becomes difficult to screw and attach the anchor 5 after the receiving frame main body 1 is placed at the installation location. Therefore, it is necessary to attach the anchor 5 to the receiving frame main body 1 and then dispose the anchor 5 at the installation location, and it is not possible to appropriately change the procedure for attaching the anchor 5 to the receiving frame main body 1 as required. was there.

Therefore, the applicant of the present application has filed a frame A shown in FIG. 10 according to Japanese Patent Application No. 2-51392, that is, a frame body 1 made of L-shaped steel or the like.
The receiving frame A in which the top 54 of the anchor 5 is rotatably fixed to the rising piece 11 by the rivet 8 is proposed.

According to this, the anchor 5 can be rotated around the rivet 8 so as to be superposed on the rising piece 11 of the receiving frame body 1 and stored, so that the storability and transportability of the receiving frame A are improved, and the anchor 5 and the number of the receiving frame body 1 are always the same, and there is no fear of inconvenience such as insufficient number of either one when used at the construction site, and troublesome work such as screw cutting during assembly. The effect that the workability is improved by eliminating the need for an assembly workability, and the workability is improved because it is sufficient to rotate the anchor 5 and project it from the rising piece 11 at the construction site of the receiving frame A. There is.

By the way, in the receiving frame A described with reference to FIG. 10, the rivet 8 for fixing the anchor 5 and the receiving frame main body 1 has the mounting hole 55 formed in the top 54 of the anchor 5 and the hole 12 formed in the receiving frame main body 1. The leading end of the rivet 8 is crimped so that the crimped portion 81 is raised from the inner side surface 11a of the rising piece 11 of the receiving frame body 1. for that reason,
When positioning the receiving frame main body 1 prior to placing concrete, as shown in the figure, the caulking portion 81 hits the fixing timber 110 of the formwork, and the outer surface 111 of the timber 110 and the inner surface of the rising piece 11 are attached. There is a possibility that a gap may be formed between the receiving frame body 1 and 11a and the positioning of the receiving frame body 1 may be misaligned. In addition, when a groove cover or the like is fitted into the constructed receiving frame A for mounting, the caulking portion
The bottom of the groove lid side hit the 81 and it was difficult to fit. others,
The caulking work of the large-diameter rivet 8 is difficult in the cold, and the hot caulking work is often required. Therefore, the workability of assembling the large-sized receiving frame A which requires the use of the large-diameter rivet 8 is improved. There was an inconvenience that it was extremely easy to deteriorate. Reference numeral 120 is a nail that is driven into the square bar 110 by using the nail hole 13 of the rising piece 11.

The present invention has been made in view of the above circumstances. Basically, the anchor and the receiving frame main body are integrated to reduce the manufacturing cost and improve the workability at the site, and at the time of storage and transportation. Not only can bulkiness be eliminated and storage and transportability can be significantly improved, but positioning of the receiving frame body can be performed stably and reliably.
It is an object of the present invention to provide a receiving frame for a groove lid or the like that can be easily and satisfactorily fitted and fitted to the groove lid or the like.

[Means for Solving the Problems] In order to achieve the above object, a receiving frame such as a groove lid according to the present invention is provided on either the rising side or the outer side of the horizontal side of the receiving frame body made of L-shaped steel or the like. The anchor's top is rotatably attached in a plane along the outer surface of the rising piece or the horizontal piece, and the entire length of the anchor is stored on the rising surface of the receiving frame body or the outer surface of the horizontal piece. A receiving frame such as a groove lid, which is configured to be switchable between a state in which most of the receiving frame body except the top portion is protruded from a side of an outer surface of a rising piece or a horizontal piece of the receiving frame main body, the anchor being the anchor. The shaft portion of the shaft body with a head is rotatably inserted into the mounting hole formed at the top of the shaft body, and the tip of the shaft portion of the shaft body is either the rising piece portion or the horizontal piece portion of the receiving frame body. It is inserted in the through hole formed in Further, the tip of the shaft portion is fixed to the through hole portion by welding or the like without protruding to the inner side surface of the receiving frame body.

[Operation] According to the receiving frame such as the groove lid of the present invention having the above-described configuration, when the receiving frame is stored or transported, the anchor is rotated around the shaft body at the top of the receiving frame so that the rising frame portion or the horizontal frame of the receiving frame body is rotated. By placing the entire length of the anchor on the outer side surface of the part so as to be stored, it is possible to stack the plurality of receiving frames in a less bulky state because the entire receiving frame is not bulky due to the protrusion of the anchor. At the same time, it is possible to avoid the inconvenience that the anchor damages other materials.
In addition, during actual use at the construction site, most of the anchors except the top part are raised by a simple operation such as rotating the anchor integrally fixed to the receiving frame main body around the shaft, It is possible to exert a predetermined anchoring action by projecting it from the side of the outer side surface of the horizontal piece, and compared with the conventional one in which a separate anchor is screwed into the receiving frame body and attached. The manufacturing cost can be reduced because no processing is required, and the workability can be improved by eliminating the troublesome and time-consuming work at the construction site.

In addition, since the tip of the shaft of the shaft to which the anchor is rotatably attached and the welded portion that secures the tip of the shaft do not project to the inner side surface of the receiving frame main body, the receiving frame main body is positioned when the receiving frame and the mold are positioned. The outer surface of the fixing square timber to be fitted between the mold and the frame can be brought into close contact with the rising surface of the receiving frame body or the inner surface of the horizontal piece without any gap, and as a result, the positioning of the receiving frame body can be ensured. become. further,
Since there is no protruding portion on the inner side surface of the receiving frame main body, it is easy to fit the groove cover or the like into the constructed receiving frame, and it is possible to fit it without any gap.

[Embodiment] FIGS. 1 and 2 show a receiving frame A of the present invention. This receiving frame A uses a receiving frame main body 1 made of L-shaped steel, and a head portion 9 for a rising piece 11 of the receiving frame main body 1, and a top portion 54 thereof.
And an anchor 5 rotatably attached in a plane along the outer side surface of the rising piece portion 11.
Has a wide portion 56 at the lower end thereof, and by the rotation of the top portion 54 around the shaft body 9, the entire length of the anchor 5 is superposed on the outer surface of the rising piece portion 11 of the receiving frame main body 1 in a stored state. And most of the top part except the top part 54 is the rising piece 11 of the receiving frame main body 1.
It is configured to be switchable to a protruding state in which the outer side surface of the is protruded downward.

As shown in FIG. 3, the headed shaft body 9 integrally includes a collar-shaped head portion 91 and a pin-shaped shaft portion 92 concentric with the head portion 91, and the length dimension of the shaft portion 92. Is the thickness of the top 54 of the anchor 5.
It is longer than t1 and shorter than the thickness dimension t2 of the overlapping portion of the top 54 of the anchor 5 and the rising piece 11 of the receiving frame body 1. And a mounting hole provided on the top 54 of the anchor 5.
The shaft 92 is rotatably inserted into the shaft 55, and the shaft 92 is inserted into the hole 12 formed in the rising piece 11.
The tip end of 92 is inserted in a state that it does not project to the inner surface side of the rising piece portion 11, and the tip end of the shaft portion 92 is located at a position slightly deeper than the opening edge 12a in the hole portion 12 on the shaft portion insertion direction X side. The tip of the shaft 92 and the inner surface of the hole 12 are welded together.
It is bonded and fixed by. When the diameter of the hole portion 12 is about 10 mm, the gap between the tip of the shaft portion 92 and the opening edge 12a may be set to about 1 to 1.5 mm. Welding can be easily applied to the inner surface of the body so that it does not travel.

According to this structure, since the tip of the shaft portion 92 of the headed shaft body 9 is welded to the inner surface of the hole 12 of the rising piece portion 11, the shaft portion 92 is formed on the inner surface of the rising piece portion 11 of the receiving frame body 1. The tip and weld do not stick out. Therefore, when positioning the form 100 or the receiving frame A as shown in FIG. 4 prior to the concrete pouring, the outer surface 111 of the fixing square bar 110 fitted between the receiving frame main body 1 and the form 100. Hits the inner side surface 11a of the rising piece portion 11 so that a gap is unlikely to be formed between the two surfaces, the square member 110 is stabilized, and the positioning of the mold 100 and the receiving frame A is ensured. Further, it becomes possible to easily fit a groove lid or the like into the constructed receiving frame A (see FIG. 5). Reference numeral 120 is a nail that is driven into the timber 110 using the nail hole 13 of the rising piece 11.

The anchor 5 is rotated around the headed shaft body 9 to receive the receiving frame body 1
By stacking them on the rising piece portion 11 and storing them, the plurality of receiving frames A ... Can be stacked so as not to be so bulky. In particular, when the width dimension of the wide portion 56 of the anchor 5 is set shorter than the width dimension of the rising piece portion 11, the entire anchor 5 including the wide portion 56 as shown in FIG. Since the receiving frame main body 1 and the anchor 5 are integrated, the receiving frame A does not have an extreme protruding portion because the receiving frame main body 1 and the anchors 5 are integrally formed. When the receiving frame A has such a shape, the tip of the shaft portion 92 and the welding do not project on the inner side surface of the rising piece 11 of the receiving frame main body 1, which allows a plurality of receiving frames A ... As shown in FIG. 7, they can be piled up in a state that they are not so bulky, and they can be stored, transported or packed without taking up space. It is desirable that the width dimension of the wide portion 56 of the anchor 5 is smaller than the width dimension of the outer side surface of the rising piece portion 11 of the receiving frame body 1, but even if it is slightly increased, the same effect as described above can be obtained. Further, the same effect can be obtained even if the anchor 5 is structured to overlap the outer surface of the receiving frame main body 1 with a small gap.

Here, the anchor 5 can rotate the anchor 5 around the shaft 9 with a head only when a force is applied to the anchor 5 by hand, and when the hand is released from the anchor 5, the anchor 5 can be rotated by its own weight or the like. It is desirable to be in a state in which it stops at that position without rotating (this state is called a hands-free state). When the anchor 5 is in the hands-free state as described above, the anchor 5 does not rotate by its own weight when piled up as shown in FIG. 7 after the anchor 5 is stored as shown in FIG. 1, It has the advantage of improved handling. This advantage is particularly beneficial as it is difficult to hold all of the anchors 5 by hand when they are numerous.

When constructing the receiving frame A, the anchor 5 is rotated around the headed shaft body 9 so that the anchor 5 is projected below the rising piece 11 as shown in FIG. After performing such a pre-work, place it at the construction position and weld the lower end wide portion 56 of the anchor 5 to one of the concrete reinforcing rebars F as shown in FIG. After fixing the position, the concrete is placed and the anchor 5 is embedded in the concrete C as shown in FIG. The wide portion 56 of the anchor 5 is firmly bonded to the concrete C when the concrete C hardens, and the anchor 5 exhibits an anchoring action as a whole.

When the anchor 5 is embedded in the concrete C as shown in FIG. 5 and an upward force is applied to the receiving frame body 1 for some reason, the anchor ring is moved only at one position in the longitudinal direction of the receiving frame body 1. If so, depending on the magnitude of the force at that time, there is a concern that the receiving frame main body 1 moves in an arc shape around the anchor 5 and peels off from the concrete C. However, in the embodiment, since the anchors 5 are provided at a plurality of positions in the longitudinal direction of the receiving frame main body 1, the receiving frame main body 1 can be moved in an arc shape around a specific anchor by the cooperation of the anchors 5 ... It is prevented beforehand, and a reliable and sturdy anchoring action is exhibited. In addition,
In FIG. 5, B shows a groove lid such as grating.

In the above description, the anchor 5 is attached to the outer side surface of the rising piece 11 of the receiving frame main body 1. However, as in the receiving frame A shown in FIG. It may be attached to the portion 14. Anchor 5 on horizontal piece 14
As shown in the figure, the anchor 5 is horizontally arranged with the anchor 5 protruding from the horizontal piece portion 14, and concrete C is placed around the anchor 5. This also ensures reliable anchoring. Further, it is possible to stack the anchor 5 on the outer side surface of the horizontal piece portion 14 to bring it into a housed state in the same manner as described above. The receiving frame A shown in FIG. 6 is the same as the receiving frame A shown in FIGS. 1, 2, and 3 rotated by 90 degrees. Therefore, the receiving frame A of FIGS. 1 and 2 can be constructed as shown in FIG. 5 and as shown in FIG.

Further, the tip of the shaft portion of the headed shaft body may be chamfered around the periphery.

[Advantage of Invention] As described above, according to the present invention, the receiving frame main body and the anchor are rotatably attached so that they can be handled as an integral body. Compared to the one in which both are screwed together and connected, the inconvenience of the number of both does not occur when used in the field, and the screwing is unnecessary and the manufacturing cost of the entire receiving frame is reduced. In addition, it is possible to reduce the number of work pieces, and at the construction site, it is only necessary to perform a simple operation such as rotating the anchor to switch to the projecting state, and it is possible to remarkably improve the construction workability at the site. Still,
When storing or transporting the receiving frame, rotate the anchor around the shaft at the top of the receiving frame so that the entire length of the anchor overlaps the rising side or the outer side of the horizontal side of the receiving frame body so that it is stored. This makes it possible to eliminate the bulkiness of the entire receiving frame due to the protrusion of the anchor, stack a plurality of receiving frames in a state with little bulkiness, and store and transport them without taking up space, and The inconvenience of damaging other materials can be avoided.

Moreover, since it is not necessary to project the shaft end of the shaft to which the anchor is rotatably attached and the welded part that secures the shaft end to the inner side surface of the receiving frame body at all, when fixing the receiving frame, the fixing square member is fixed. It is possible to bring the rising piece of the receiving frame body or the inner side surface of the horizontal piece into close contact with the outer surface of the receiving frame body without a gap, so that the receiving frame body can be reliably positioned. Further, since there is no protruding portion on the inner side surface of the receiving frame main body, it is very easy to fit the groove cover or the like into the constructed receiving frame, and it is possible to fit it without any gap. Further, since it is possible to fix the headed shaft body and the inner surface of the through hole by welding or the like, even when assembling a large receiving frame using a headed shaft body with a large diameter, when using a rivet Compared with this, the workability can be improved.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing a state where an anchor is housed in a receiving frame according to an embodiment of the present invention, FIG. 2 is a schematic perspective view showing a state where the anchor is projected in the receiving frame, and FIG. 3 is an enlarged sectional view of the receiving frame. FIG. 4 is a cross-sectional view showing a positioning state of the receiving frame before pouring concrete, FIG. 5 is a vertical sectional view showing an installing state of the receiving frame, and FIG. 6 is a vertical sectional view showing another installing state of the receiving frame. , FIG. 7 is an explanatory view of a state in which the receiving frames are overlapped with each other, FIGS. 8 and 9 are side views and sectional views of a conventional receiving frame, and FIG. 10 is a sectional view showing a positioning state of the receiving frames according to a comparative example. is there. A ... Receiving frame, B ... Groove cover, 1 ... Receiving frame main body, 5 ... Anchor, 9
... Headed shaft body, 11 ... Standing piece, 12 ... Hole, 12a ... Hole opening edge, 14 ... Horizontal piece, 54 ... Anchor top, 55 ... Mounting hole, 92 ... Shaft, X ... Shaft Part insertion direction, W ... Welding.

Claims (1)

[Scope of utility model registration request] 1. A top of an anchor is provided on either the outer surface of a rising piece or a horizontal piece of a receiving frame body made of L-shaped steel or the like in a plane along the outer surface of the rising piece or the horizontal piece. Installed movably, and put the entire length of the anchor on the outer surface of the rising piece or the horizontal piece of the receiving frame body in the stored state, and most of the parts except the top are outside the rising piece or horizontal piece of the receiving frame body. A receiving frame such as a groove lid configured to be switchable to a projecting state in which it projects from a side of a side surface,
A shaft portion of a shaft body with a head is rotatably inserted into a mounting hole formed in the top portion of the anchor, and a tip end of the shaft portion of the shaft body is the rising piece or horizontal piece of the receiving frame body. Has been inserted into the through hole formed in any of the
Further, a receiving frame such as a groove lid, characterized in that the tip of the shaft portion is fixed to the through hole portion by welding or the like in a state of not protruding to the inner side surface of the receiving frame body.