JP2005105560A - Rail laying structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rail laying structure for securing sufficient strength around a rail support part, reducing the number of part items, and simplifying a structure. <P>SOLUTION: This invention aims at the rail laying structure for installing a rail 50 on an undefloor installation surface 1 via a rail installing member. The rail installing member is composed of a pair of rail support metal fittings 30. The support metal fittings 30 have flanges 31, an erected wall 32, and a rail fitting groove half-constituent body 35. A pair of anchor bolts 10 are fixed to the underfloor installation surface 1. The respective flanges 31 are fixed to the bolts 10 in a state of oppositely arranging the pair of support metal fittings 30, and an upward opening rail fitting groove 40 is formed of the rail fitting groove half-constituent body 35, and the rail 50 is fitted to the groove 40. The bolts 10, the metal fittings 30, and the rail 50 are embedded in a concrete layer arranged on the underfloor installation surface, and a rail upper surface is exposed to a floor surface 2 of a concrete layer supper surface. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a rail laying structure in which a rail for supporting a movable body such as a movable shelf so as to be able to travel is laid on a floor surface in a state where the rail is buried except for its upper surface.

  Space-saving and high storage rate by providing a plurality of movable shelves on the rails laid on the floor so that they can run freely, moving the movable shelves appropriately, and putting books in and out of the desired movable shelves A storage system capable of obtaining the above is well known.

In such a storage system, for example, the one shown in the following Patent Document 1 is well known as a rail laid in a state of being almost buried in the floor. In this rail laying structure, both side portions of the gate-shaped rail support fitting are fixed to the floor installation surface via anchor bolts. Further, in a state where the rail is placed on the central support plate of the rail support bracket, the thin portions on both sides of the rail are fixed to the rail support bracket by the clamp bracket. In addition, concrete is cast on the underfloor installation surface, and anchor bolts, rail support brackets and rails are embedded in the concrete layer, and the upper surface of the rail is exposed to the upper surface (floor surface) of the concrete layer. It is configured as follows.
Japanese Patent No. 2550785 (FIG. 1)

  However, in the conventional rail laying structure, since the rail support bracket is formed in a gate shape, when the concrete is placed and the rail support bracket is embedded, the concrete is in the inner corner of the rail support bracket. In some cases, a gap portion is formed in the inner corner portion. If a void is formed in the concrete layer around the rail support portion in this way, sufficient strength cannot be secured around the rail support portion, and the rail will bend due to wheel pressure during traveling on the moving shelf and the concrete There are problems such as cracks in the layers, or rails sinking and hindering the movement of the moving shelf.

  Furthermore, the conventional rail laying structure requires a large number of parts such as a clamp fitting and a fixing tool for fixing the clamp fitting to the rail support fitting in addition to the anchor bolt and the rail support fitting. However, due to the increase in the number of parts, the structure becomes complicated and the construction work becomes difficult.

  On the other hand, in the rail laying structure as described above, when applied to an existing concrete floor, the existing concrete layer is excavated and removed along the rail laying region to form a rail support pit, and in the pit, As described above, after anchor bolts, rail support brackets, and rails are attached, concrete is newly placed in the excavation pit and filled.

  However, in the above-described conventional rail laying structure, the thin portions provided in the laterally protruding shape on both sides of the rail are fixed to the center support plate of the gate-type rail support bracket, and the lower ends of both side walls of the gate-type rail support bracket Since the flange is formed so as to project sideways and the flange is fixed to the floor installation surface via the anchor bolt, the dimension in the rail width direction (anchor pitch) is increased. For this reason, when rails are laid on an existing concrete floor, it is necessary to form wide excavation pits in the existing concrete layer in accordance with the wide anchor pitch, and the excavation area becomes wider, and the rail Since it is necessary to place concrete in a wide pit after installing the support metal fittings, there is a problem that a great deal of labor is required for the operator and it is difficult to install the rail. In addition, a large amount of excavated concrete pieces are generated, and there is a problem in the disposal.

  The present invention solves the above-mentioned problems of the prior art, can secure sufficient strength around the rail support portion, can reduce the number of parts and simplify the structure, and can facilitate construction work. Furthermore, it aims at providing the rail laying structure which can lay a rail easily with respect to the existing concrete surface without a malfunction.

  In order to achieve the above object, the present invention provides a rail laying structure in which a rail for supporting a movable body so as to be able to run is attached to an underfloor installation surface via a rail attachment member, the rail attachment member Is composed of a pair of rail support brackets arranged opposite to each other, the rail support bracket being horizontally disposed with a fixed flange, a standing wall disposed so as to rise from one end of the fixed flange, and the standing wall A rail fitting groove semi-structure provided at the upper end of the base plate, a pair of anchor bolts being fixed to the underfloor installation surface, and the pair of rail support metal fittings facing each other, each fixing flange is By being fixed to the pair of anchor bolts, the rail fitting groove in the upward opening state is formed by the rail fitting groove semi-structures of the pair of rail support brackets. The rail is fitted into the rail fitting groove, and a concrete layer is provided on the underfloor installation surface, and the anchor bolt, the rail support bracket, and the rail are embedded in the concrete layer. The gist is that the upper part of the rail is configured to be exposed on the floor surface of the upper surface of the concrete layer.

  In the seat laying structure of the present invention, the rail support bracket is composed of a fixed flange, a standing wall, and a rail fitting groove semi-structure, and concrete is filled without difficulty over the entire outer peripheral surface thereof. Therefore, a gap is not formed around the rail support bracket, and the strength around the rail support can be sufficiently secured. For this reason, the rail is bent by the wheel pressure when the moving body such as a moving shelf travels, and the concrete layer is cracked, or the rail sinks and the trouble of the traveling of the moving body is reliably prevented. be able to.

  Further, in the present invention, the rail is supported and fixed by only the anchor bolt and the rail support bracket, so that the number of parts is small, the structure can be simplified and the cost can be reduced, and the construction work is also performed. It can be done easily.

  Furthermore, in the present invention, a rail fitting groove is formed by a pair of rail support fittings, and the rail is fitted to the groove. Therefore, for example, compared with the case where the thin wall portions protruding on both sides of the rail are clamped. Thus, the width (anchor pitch) of the rail support portion can be reduced. Therefore, when the rail laying structure of the present invention is applied to an existing concrete floor, it is only necessary to excavate an area with a small existing concrete floor in accordance with a narrow anchor pitch, and excavation work can be easily performed. In addition, it is possible to reduce the amount of concrete placed after the support bracket is installed, and the concrete filling operation can be easily performed. In addition, the amount of excavation of existing concrete, that is, the amount of discarded concrete is reduced, and the problem of disposal can be effectively dealt with.

  On the other hand, in the present invention, it is preferable to adopt a configuration in which a base plate is fixed to the pair of anchor bolts in a bridging manner, and the fixing flanges of the pair of rail support brackets are installed on the base plate.

  That is, when this configuration is adopted, the rail support bracket can be attached in a stable state, and as a result, the rail can be supported and fixed in a more stable state.

  In the present invention, the pair of rail support fittings are arranged in a state where the standing walls are joined to each other, and the joining standing walls are connected and fixed to each other by a connector. Is good.

  That is, in this structure, the mutual connection strength in the pair of rail support brackets can be improved, and the rail can be supported and fixed in a more stable state.

  In the present invention, an engagement piece projecting inward is provided at the upper end of both side walls of the rail fitting groove, and an engagement groove is formed on both side surfaces of the rail, and the engagement groove is formed in the engagement groove. It is desirable to adopt a configuration in which a piece is inserted.

  In other words, when this configuration is adopted, the rail can be more reliably held by the fitting groove, and the rail can be prevented from coming off as well as rattling. It can be laid in a stable state.

  As described above, according to the seat laying structure of the present invention, sufficient strength can be secured around the rail support portion, the number of parts can be reduced, and the structure can be simplified. Moreover, it is possible to obtain the effect that the rail can be easily laid on the existing concrete surface without any trouble.

  1 and 2 are views showing a sheet laying structure according to the first embodiment of the present invention. As shown in both figures, this rail laying structure is employed when laying rails (50) for guiding and supporting the wheels of the moving shelf, and includes a pair of anchor bolts (10), a base plate and the like. (20), a pair of rail support fittings (30), and a rail (50) are provided as basic components. And these structural members are installed on the underfloor installation surface (1) comprised by the upper surface of primary concrete (1a), and then secondary concrete (2a) is cast on the underfloor installation surface (1). The concrete layer (2b) is formed and embedded in the concrete layer (2b).

  That is, a pair of anchor bolts (10) are fixed on the underfloor installation surface (1) at predetermined intervals along the rail laying region. The anchor bolt (10) is an anchor member (11) such as a drop-in anchor that is driven into and fixed to the underfloor installation surface (1), and a slit that is screwed into the anchor member (11) and fixed in an upright state. And a bolt body (12) such as a bolt. As will be described later, the bolt body (12) is configured to be cut at a predetermined position, and is configured so that the length can be adjusted as necessary after fixing.

  Further, a level adjusting nut (15) is screwed and fixed at a predetermined height position of the bolt body (12) in the anchor bolt (10).

  As shown in FIG. 6, the base plate (20) is constituted by a long metal plate having bolt insertion notches (21a) (21a) formed on both sides.

  As shown in FIGS. 1 and 3, the bolt body (12) is inserted and disposed in the notch (21a) of the base plate (20), and the base plate (20) is leveled at both side edges. It is supported on the adjusting nut (15) and arranged in a horizontal state.

  As shown in FIG. 5, the pair of rail support brackets (30) are used so as to be opposed to each other (opposed to each other), and are configured by metal plates that are bent symmetrically to each other. Each rail support bracket (30) includes a fixed flange (31) disposed horizontally, a standing wall (32) provided in a vertically rising manner from one end (inner end) of the fixed flange (31), A rail fitting groove semi-structure (35) provided at the upper end of the standing wall (32).

  A bolt insertion notch (31a) is formed on the outer side of the fixed flange (31).

  The rail fitting groove half component (35) includes a bottom wall component piece (36) extending outward in the horizontal direction from the upper end of the standing wall (32), and a side wall component extending upward from the tip of the bottom wall component piece (36). And a piece (37).

  And as shown in FIG.1 and FIG.4, in a state where the pair of rail support fittings (30) face each other so as to join the standing walls (32) to each other, each fixing flange (31) (31 ) So that the bolt bodies (12) of the pair of anchor bolts (10) are inserted into the notches (31a) and (31a) of the pair, and the fixing flanges (31) and (31) are mounted on the base plate (20). Placed on.

  In this state, a fixing nut (16) is screwed from the upper end of the bolt main body (12), and the fixing flanges (31) (31) of the rail support brackets (30) (30) are screwed by the nut (16). The periphery of the notches (31a) (31a) and the periphery of the notches (21a) (21a) of the base plate (20) are suppressed downward. As a result, both sides of the base plate (20) are clamped by the nuts (15) and (16) and the fixing flanges (31) of the rail support brackets (30) and (30) are clamped by the nuts (15) and (16). The base plate (20) is fixed in a bridging manner between the pair of anchor bolts (10), and the pair of rail support brackets (30) and (30) are fixed on the base plate (20) in a state of facing each other.

  In this facing match state, the bottom wall constituting pieces (36) and (36) of the rail fitting groove semi-structures (35) and (35) are the bottom walls, and the side wall constituting pieces (37) and (37) are the both side walls. And the rail fitting groove | channel (40) opened upwards is formed.

  The rail fitting groove (40) is arranged such that both side walls (37) and (37) are inclined inward, so that the width of the upper end opening is narrower than the width of the groove bottom. In other words, the inner peripheral shape of the rail fitting groove (40) is formed corresponding to the outer peripheral shape of the lower half of the rail (50) described later.

  The rail (50) has a substantially rectangular cross section, and the lower half of the both side surfaces corresponds to the rail fitting groove (40), and the engagement surface (51) is inclined inward. (51).

  In addition, two or more rails (50) are installed for one row of moving shelves, and the upper surfaces of two or more rails (50) are engaged with flanges provided on the wheels of the moving shelves. Thus, a wheel removal preventing groove (51) for preventing wheel removal is formed continuously in the length direction. In FIG. 1, a rail (50) with a groove (51) is shown on the left side and a rail (50) without a groove is shown on the right side of the drawing.

  The rail (50) having the above-described configuration is fitted and fixed in the rail fitting groove (40) in the pair of rail support fittings (30) and (30) fixed in a facing and matching state. At this time, the engaging surface in the lower half of the both side surfaces of the rail (50) is engaged with the inner surface of the both side walls (37) and (37) in the rail fitting groove (40), and the rail (50) becomes the rail. It is prevented from coming out upward from the fitting groove (40).

  After the rail (50) is fixed in the groove (40), the upper surplus portion of the bolt body (12) of the anchor bolt (10) is cut and removed.

  Thereafter, the secondary concrete (2a) is placed on the underfloor installation surface (1) to form a concrete layer (2b). At this time, only the upper surface of the rail (50) is exposed upward on the floor surface (2) of the upper surface of the concrete layer, and other parts, that is, the anchor bolt (10), the base plate (20), and the rail support bracket ( 30) Furthermore, the main part of the rail (50) is arranged in a buried state in the concrete layer (2b).

  As described above, according to the rail laying structure of the present embodiment, the rail support bracket (30) includes the fixed flange (31), the standing wall (32), and the rail fitting groove semi-structure (35). Since the concrete can be reasonably filled over the entire outer peripheral surface, no gap is formed around the rail support bracket (30), and the strength around the rail support is Can be secured sufficiently. For this reason, the rail (50) is bent by the wheel pressure during traveling of the movable shelf and the concrete layer (2b) is cracked, or the rail (50) sinks and hinders the traveling of the movable shelf. It can be surely prevented.

  In this embodiment, the base plate (20) is used in addition to the anchor bolt (10) and the rail support bracket (30), and the number of parts is small, thereby simplifying the structure and reducing the cost. In addition, the construction work can be easily performed.

  Furthermore, in this embodiment, the rail fitting groove (40) is formed by the pair of rail support fittings (30), and the rail (50) is fitted into the groove (40). As described above, the width (anchor pitch) of the rail support portion can be reduced as compared with the case where the thin portions protruding on both sides of the rail are clamped. For this reason, when the rail laying structure according to the present embodiment is applied to an existing concrete floor, it is only necessary to excavate an area with a small existing concrete floor in accordance with a narrow anchor pitch, and excavation work is easily performed. In addition, it is possible to reduce the amount of pouring of the concrete after installing the support bracket, and the concrete filling work can be easily performed. In addition, the amount of excavation of existing concrete, that is, the amount of discarded concrete is reduced, and the problem of disposal processing can be sufficiently dealt with.

  In the present embodiment, the base plate (20) is fixed to the anchor bolt (10), and the rail support bracket (30) is attached to the plate (20). Therefore, the rail support bracket (30) is in a stable state. Thus, the rail (50) can be firmly fixed in a more stable state.

  Furthermore, in this embodiment, the both side walls (37) of the rail fitting groove (40) in the rail support fitting (30) are engaged with the engaging surfaces (51) on both sides of the rail (50). The rail (50) can be securely held by the fitting groove (40). For example, during laying construction, the rail (50) can be surely prevented from rattling, etc. The rail (50) can be laid and constructed in an even more stable state.

  FIG. 7 is a sectional view showing a rail laying structure according to the second embodiment of the present invention. As shown in the figure, in the rail laying structure of the second embodiment, the base plate (20) in the first embodiment is not provided, but the standing walls (32) ( 32) are connected and fixed by a connecting tool such as a bolt (25). Further, in the second embodiment, engaging grooves (58) (58) are formed continuously on both sides of the rail (50) in the rail length direction, and each of the pair of rail support brackets (30) is provided. Engagement pieces (38) and (38) projecting inward are formed at the upper ends of the side wall constituting pieces (37) and (37), that is, the upper ends of both side walls of the rail fitting groove (40). When the rail (50) is fitted in the rail fitting groove (40), the engagement pieces (38) (38) are inserted and engaged in the engagement grooves (58) (58). Yes.

  In the second embodiment, since the other configuration is the same as that of the first embodiment, the same reference numerals are given to the same parts or corresponding parts, and the duplicate description is omitted.

  In the rail laying structure of the second embodiment, the same function and effect can be obtained as in the first embodiment.

  In addition, in the second embodiment, since the standing walls (32) and (32) of the pair of rail support brackets (30) are connected by bolts (25), a pair of rail support brackets is provided. The mutual connection strength in (30) can be improved, and the rail (50) can be held in a more stable state.

  Further, in the second embodiment, the engagement pieces (38) (38) are formed at the front ends of the both side walls of the rail fitting groove (40), and the engagement grooves (58) ( 58), and in a state where the rail (50) is fitted in the fitting groove (40), the engaging piece (38) is inserted and engaged with the engaging groove (58). (50) can be more reliably prevented from slipping out of the fitting groove (40), the rail (50) can be held in a more stable state, and the rail (50) is more stable. Can be laid and installed in a state.

It is sectional drawing which shows the rail-laying structure which is 1st Embodiment of this invention. It is a top view which shows the rail-laying structure of 1st Embodiment in the state except the concrete layer (secondary concrete). It is sectional drawing which shows the state immediately after baseplate construction when constructing the rail laying structure of 1st Embodiment. It is sectional drawing which shows the state immediately after a bolt main body cutting | disconnection when constructing the rail-laying structure of 1st Embodiment. It is a figure which shows the rail support metal fitting applied to the rail laying structure of 1st Embodiment, Comprising: The figure (a) is a front view, The figure (b) is a bottom view. It is a top view which shows the baseplate applied to the rail-laying structure of 1st Embodiment. It is sectional drawing which shows the rail-laying structure which is 2nd Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Underfloor installation surface 2 ... Floor surface 2b ... Concrete layer 10 ... Anchor bolt 20 ... Base plate 30 ... Rail support bracket 31 ... Fixed flange 32 ... Standing wall 35 ... Rail fitting groove half structure 36 ... Groove bottom structure piece 37 ... Sidewall component (sidewall)
38 ... engaging piece 40 ... rail fitting groove 50 ... rail 58 ... engaging groove

Claims (4)

A rail laying structure in which a rail for supporting a movable body so as to run freely is attached to a floor installation surface via a rail attachment member,
The rail mounting member is composed of a pair of rail support brackets arranged to face each other,
The rail support bracket is a horizontally disposed fixed flange, a standing wall disposed so as to rise from one end of the fixed flange, and a rail fitting groove half structure provided at the upper end of the standing wall; Have
A pair of anchor bolts are fixed to the floor installation surface,
With the pair of rail support brackets facing each other, the fixing flanges are fixed to the pair of anchor bolts, respectively, so that the pair of rail support brackets are opened upward by the respective rail fitting groove semi-structures. Rail fitting groove in the state is formed,
While the rail is fitted in the rail fitting groove,
A concrete layer is provided on the underfloor installation surface, and the anchor bolt, the rail support bracket, and the rail are embedded in the concrete layer, and the upper portion of the rail is exposed on the floor surface of the upper surface of the concrete layer. The rail laying structure characterized by being comprised.   The rail laying structure according to claim 1, wherein a base plate is fixed to the pair of anchor bolts in a bridging manner, and each fixing flange of the pair of rail support brackets is installed on the base plate.   The rail laying structure according to claim 1 or 2, wherein the pair of rail support fittings are arranged in a state where the standing walls are joined together, and the joining standing walls are connected and fixed to each other by a connector. An engagement piece projecting inwardly is provided at the upper end of both side walls of the rail fitting groove,
The rail laying structure according to any one of claims 1 to 3, wherein an engagement groove is formed on both side surfaces of the rail, and the engagement piece is inserted into the engagement groove.

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