JP4846647B2 - Anchor bracket - Google Patents

Description

  The present invention relates to a differential bar in which a receiving frame provided on a side portion of a substantially U-shaped groove is fixed to a structure made of concrete or the like in order to place a groove lid or the like that closes the substantially U-shaped groove provided on a floor surface or the like. It is related with the anchor metal fitting for attaching to support members, such as.

Conventionally, a groove lid receiving frame (receiving frame) for placing a groove lid or the like that closes a substantially U-shaped groove provided on a floor surface or the like is implanted in a structure made of concrete or the like as described in Patent Document 1. It is attached and fixed to a supporting member such as a differential bar. The groove lid receiving frame includes a mounting portion in which a groove with a lip is formed in which a pair of lips extending inward from the end edges of both side walls of a U-shaped groove formed along the longitudinal direction is provided. The groove lid receiving frame is supported by attaching an anchor fitting engaged and fixed to the attachment portion to the support member by welding or the like.
JP 7-269106 A

  As an example, the anchor metal fitting includes a plate-like engagement portion that is engaged and fixed in a groove with a lip of the attachment portion, and a fixing portion that extends from the engagement portion and is fixed to the support member. Consists of. The anchor metal engaging portion has a short side shorter than the width of the opening formed between both lips of the lip groove and a long side longer than the width of the opening and shorter than the inner width of the lip groove. It has a substantially rectangular shape. When the anchor fitting is engaged with the groove with the lip of the mounting portion of the groove cover receiving frame and fixed, first, the short side of the engaging portion is oriented perpendicular to the longitudinal direction of the groove with the lip, and the engaging portion is set to both lips. The lip-attached groove is inserted through the opening formed between the two and the engagement portion is rotated so that the edge of the short side of the engagement portion can be engaged with the lip. Next, the screw is screwed into a screw hole provided at a substantially central position of the engagement portion, and the engagement portion is moved to the lip side by pressing the tip of the screw against the bottom wall, so that the short side of the engagement portion The end edge of this is engaged with the lip and fixed.

  Thus, in order to engage and fix the anchor fitting to the groove with the lip in the mounting portion of the groove cover receiving frame, the step of positioning the engaging portion within the groove with the lip and the engagement by screwing the screw are engaged. When the groove lid receiving frame is fixed to the support member with a large number of anchor fittings, it takes a lot of time to fix the anchor fitting to the groove lid receiving frame. It took time and was troublesome. Therefore, this invention aims at providing the anchor metal fitting which solves the said subject.

  In order to solve the above problems, the present invention is provided along the longitudinal direction of a receiving frame provided on a side portion of a substantially U-shaped groove for placing a groove lid or the like that closes the substantially U-shaped groove provided on a floor surface or the like. The difference between the formed groove having a U-shaped cross section and fixed to a structure made of concrete or the like by being engaged with a mounting portion provided with a pair of lip grooves provided with a pair of lips extending inwardly from the edges of both side walls of the groove. An anchor fitting for attaching a receiving frame to a support member such as a line, the anchor fitting having a plate-like engagement portion that is engaged between a bottom wall of a groove with a lip formed in the attachment portion and both lips. A fixing portion that extends from the engaging portion and is fixed to the support member, and the width of any one of the engaging portions is made shorter than the width of the opening formed between the two lips. In anchor metal fittings where the width of any one remaining joint is longer than the width of the opening, The height of the engaging portion is slightly higher than the height between the bottom wall and the lip on the side facing the bottom wall of the joint portion or on both ends of the remaining one of the remaining widths of the engaging portion. The engaging part of the anchor metal fitting is inserted into the groove with the lip through the opening so that one of the span width directions is perpendicular to the longitudinal direction of the groove with the lip, and is engaged while rotating the engaging part. Provided is an anchor fitting characterized in that either one of the remaining portions in the width direction is press-fitted and fixed between the lip and the bottom wall.

  In the anchor metal fitting configured as described above, the engaging portion is slightly higher than the height between the bottom wall and the lip by the protrusion, so the anchor metal engaging portion is positioned in any one of the width directions. In the direction perpendicular to the longitudinal direction of the groove with a lip, put it into the groove with a lip from the same opening and rotate it, while bending and elastically deforming the lip, either one end in the width direction of the remaining engagement part Since it can be engaged and fixed by press-fitting between the lip and the bottom wall, the anchor fitting can be easily attached to the receiving frame in one step without using a tool or the like.

  In the above-mentioned anchor fitting, it is preferable to form a taper at the edge of the engaging portion on the side opposite to the lip, and in this case, the engaging portion is press-fitted between the lip and the bottom wall. When fitting, the end edge of the engaging portion is not caught by the lip and does not become difficult to enter.

  In the anchor metal fitting, as one embodiment, the engaging portion has a short side that is shorter than the width of the opening as one of the passing widths, and a groove with a lip that is longer than the width of the opening as any one of the remaining passing widths. The engagement part of the anchor bracket is formed in a short rectangular shape with a long side shorter than the inner width. Is inserted into the lip groove from the opening in a direction orthogonal to the longitudinal direction of the lip groove, and the edge of the short side is press-fitted between the lip and the bottom wall while rotating one diagonal side to the lip side. In this case, the above-described effects can be obtained, and after one diagonal side is rotated to the lip side, the other diagonal side is a groove with a lip. It comes to be locked against the side wall, The engagement portion is fitted pressed eliminated may deviate excessively rotated when engaging fixed.

  In the anchor metal fitting of the preceding paragraph, one diagonal end of the engaging portion is made lower than the height between the bottom wall and the lip, and the other diagonal end is connected to the bottom wall and the lip. It is preferable to make it slightly higher than the height, and in this case, the edge of the short side should be inserted without applying a large force when putting it between the bottom wall and the lip from one diagonal side. Can do.

  Hereinafter, an embodiment of the present invention will be described with reference to FIGS. The anchor fitting 10 according to the present invention is engaged and fixed to a receiving frame 20 provided on a side portion of a substantially U-shaped groove in order to place a groove lid C that closes a substantially U-shaped groove provided on the floor surface. This receiving frame 20 is for attaching to a differential bar (supporting member) 30 fixed to the foundation structure B made of concrete.

  As shown in FIG. 1, the differential bar 30 is a rod-shaped steel material for supporting the receiving frame 20, and is erected at predetermined intervals along the longitudinal direction of the substantially U-shaped groove on both sides of the substantially U-shaped groove. ing. The proximal end portion 30a of the differential bar 30 is embedded and fixed in the concrete base structure B made of concrete, and the distal end portion of the differential bar 30 is located in the vicinity of the receiving frame 20 to be supported.

  The receiving frame 20 is a frame member for placing the groove lid C formed by extrusion of aluminum, and placing the groove lid C as shown in FIGS. 1, 2A, and 2B. It consists of the part 21 and the attachment part 23 to which the anchor metal fitting 10 is engaged and fixed. As shown in FIGS. 1 and 2 (b), the mounting portions 21 are formed inward from the edges of both side walls of a U-shaped groove that is formed along the longitudinal direction of the receiving frame 20 and opens upward. A lip groove having a pair of lips extending in the direction. A groove lid C is placed on the upper surface of the placement portion 21 via a cushion material 22. A groove member U constituting a U-shaped groove formed by bending a sheet metal is fixed to the lower surface of the mounting portion 21 by rivets.

  As shown in FIG. 1 and FIGS. 2A and 2B, the attachment portion 23 is provided outside the placement portion 21, is formed along the longitudinal direction of the receiving frame 20, and opens to the outside. It has a lip-attached groove D formed with a pair of lips 23b extending inwardly from the end edges of both side walls 23a of the U-shaped groove.

  As shown in FIG. 3B, the anchor metal fitting 10 is a Z-shaped sheet metal member in which the shape viewed from the side surface is bent at a right angle by press working by punching and bending, and the mounting portion 23 is It comprises a plate-like engaging portion 11 that is engaged and fixed between the bottom wall 23c and both lips 23b, and a fixing portion 12 that extends from the engaging portion 11 and is fixed to the differential bar 30.

  As shown in FIGS. 2A and 3A, the engaging portion 11 has a shorter side shorter than the width of the opening formed between the lips 23b of the mounting portion 23 and the width of the opening. It has a substantially rectangular shape with a long side that is longer than the inner width of the groove D with a lip. One diagonal 11a of the engaging portion 11 is cut so as to form a large arc, and the width of the diagonal 11a is longer than the opening and shorter than the inner width of the lip groove D. . The other diagonal width of the engaging portion 11 is longer than the inner width of the lip groove D. Any one of the passing widths described in the claims refers to the passing width of the short side of the engaging portion 11, and any one of the remaining passing widths described in the claims is the width of the engaging portion 11. It indicates the width of the long side. In addition, the passing width described in the claims and the specification of the present application refers to the width when the engaging portion 11 is sandwiched between two parallel straight lines.

  On the side of the engagement portion 11 facing the bottom wall 23c of the lip groove D, as shown in FIGS. 2B, 3B, and 3C, a protrusion 11b formed by embossing is provided. The two engaging portions 11 are slightly higher than the heights of the lip 23b and the bottom wall 23c of the groove D with the lip of the mounting portion 23 by the protrusions 11b. That is, the height of the engaging portion 11 due to the plate thickness of the engaging portion 11 and the protrusion 11b is slightly higher than the height of the lip 23b and the bottom wall 23c of the groove D with lip. Further, the end of the engagement portion 11 on the side facing the lip 23b is bent by press working by punching to form a tapered surface.

  The fixing portion 12 has a substantially L-shape that extends in a vertical direction from a substantially middle portion of the long side of the plate-like engaging portion 11 and is bent in a direction opposite to the engaging portion 11. The fixing portion 12 is bent. The difference bars 30 and the like are fixed to the portions by welding or the like.

  A method for fixing such an anchor fitting 10 by engaging with the groove D with the lip in the mounting portion 23 of the receiving frame 20 will be described. The engaging portion 11 of the anchor metal fitting 10 is lipted at the short side (any one width direction) in the groove D with the lip of the mounting portion 23 of the receiving frame 2 that is preliminarily positioned at the position where the groove lid C is placed. The engagement portion 11 of the anchor fitting 10 is rotated in a direction in which one diagonal 11a is on the lip 23b side of the attachment portion 23 in a direction perpendicular to the longitudinal direction of the groove D. The engaging portion 11 is press-fitted and fixed between the lip 23b and the bottom wall 23c while the lip 23b of the mounting portion 23 is bent and elastically deformed by bending the lip 23b. Thus, the anchor fitting 10 of the present invention can be fixed to the mounting portion 23 of the receiving frame 20 by press-fitting the engaging portion 11 into the groove D with the lip and rotating it. Work can be easily performed in one process without using a tool, and the work time required for mounting and fixing can be greatly reduced, thereby reducing costs.

  Further, since the end of the engaging portion 11 on the side facing the lip 23b is bent by press working by punching to form a tapered surface, the engaging portion 11 is placed between the lip 23b and the bottom wall 23c. When press-fitting, it does not become difficult to get caught by the lip 23b.

  If the height of the end portion of one diagonal 11a in the engaging portion 11 is made slightly lower than the height between the bottom wall 23c and the lip 23b of the lip groove D, the engaging portion 11 is used. Is rotated and press-fitted between the bottom wall 23c and the lip 23b of the groove D with a lip, and can be inserted without applying a large force.

  In the above embodiment, two protrusions 11b are provided on the side of the engaging portion 11 of the anchor fitting 10 facing the bottom wall 23c of the groove D with the lip, but the present invention is not limited to this. As shown in FIGS. 4 (a) and 4 (b), the projecting portion 11Ab is formed by bending the other diagonal to the bottom wall 23c side as both ends of any one remaining width of the engaging portion 11. And the height of the engaging portion 11 may be made slightly higher than the height between the bottom wall 23c and the lip 23a of the groove D with the lip. An effect can be obtained. The other diagonal of the engaging portion 11 may be bent not on the bottom wall 23c side but on the lip 23a side. Further, one of the other diagonals of the engaging portion 11 may be bent toward the bottom wall 23c and the other diagonal toward the lip 23a.

  In the above embodiment, the engagement portion 11 of the anchor metal fitting 10 is substantially rectangular, but the present invention is not limited to this, and any one of the span widths is formed between the lips 23b. It may be a rhombus, a parallelogram, or an ellipse as a shape that is shorter than the width of the opening and any one remaining width is longer than the width of the opening.

It is sectional drawing which shows the state which the anchor metal fitting which concerns on this invention is press-fitted by a receiving frame, is engaged and fixed, is fixed to a differential bar | burr, and supports a receiving frame. (A) is a side view which shows the state by which the anchor metal fitting was engaged with the attachment part of the receiving frame, (b) is the sectional drawing. (A) is a front view which shows the anchor metal fitting of FIG. 1, (b) is the side view, (c) is AA sectional drawing of (a). (A) is a front view which shows the anchor metal fitting in other embodiment, (b) is the side view.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Anchor metal fitting, 11 ... Engagement part, 11a ... One diagonal, 11b ... Projection, 20 ... Receiving frame, 21 ... Mounting part, 21b ... Lip, 22c ... Bottom wall, D ... Groove with lip, 30 ... Support Member (difference).

Claims (4)

A groove having a U-shaped cross section formed along the longitudinal direction of a receiving frame provided on a side portion of the substantially U-shaped groove in order to place a groove lid or the like for closing the substantially U-shaped groove provided on the floor surface or the like The receiving frame is attached to a support member such as a differential bar which is attached to a mounting portion having a groove with a lip provided with a pair of lips extending inwardly from the edges of both side walls of the wall. Anchor bracket for
The anchor fitting is engaged with and fixed between a bottom wall of a groove with a lip formed in the mounting portion and the lips, and extends from the engaging portion to the support member. A fixing part for fixing,
An anchor in which any one passing width of the engaging portion is shorter than a width of an opening formed between the two lips, and any remaining passing width of the engaging portion is longer than a width of the opening. In the bracket,
The height of the engaging portion is set to be higher than the height between the bottom wall and the lip on the side of the engaging portion facing the bottom wall or on both ends of the remaining width of the engaging portion. Providing a protrusion that is slightly higher,
The engagement portion of the anchor metal fitting is inserted into the groove with a lip from the opening so that any one of the span width directions is perpendicular to the longitudinal direction of the groove with the lip, and the engagement portion is rotated while the engagement portion is rotated. An anchor fitting characterized in that any one of the remaining width direction portions of the joint portion is fixed by press-fitting between the lip and the bottom wall.   The anchor fitting according to claim 1, wherein a taper is formed on an end edge of the engaging portion on the side facing the lip. The engaging portion has a short side shorter than the width of the opening as the one passing width and a long side shorter than the inner width of the groove with the lip as the remaining passing width longer than the width of the opening. Is formed in a substantially rectangular shape having one of its diagonals cut away so that the width across the diagonal is shorter than the inner width,
The engaging portion of the anchor fitting is inserted into the lip groove from the opening with the short side perpendicular to the longitudinal direction of the lip groove, and the one diagonal side is rotated to the lip side. The anchor fitting according to claim 1 or 2, wherein an end edge of a short side is press-fitted and fixed between the lip and the bottom wall.   The one diagonal end of the engaging part is made lower than the height between the bottom wall and the lip, and the other diagonal end is made higher than the height of the bottom wall and the lip. The anchor fitting according to claim 3, wherein the anchor fitting is slightly raised.

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