JP2006265837A - Grating fixing implement - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a grating fixing implement which can enhance the efficiency of fixing work by enabling a grating to be easily mounted in a short period of time, without the need for welding, when the grating is fixed. <P>SOLUTION: This grating fixing implement 1 is equipped with a hook member 10 which is engaged with a skeleton body 4a from a top surface of the grating 4, a fixing member 38 which is inserted into an opening 2a from a through-hole 4b and engaged with an undersurface of a supporting structure 2, and a fastening member 20 which imparts a fastening force to a section between the hook member 10 and the fixing member 38. The fixing member 38 is inserted from the through-hole 4b of the grating 4, and engaged with the undersurface of the supporting structure 2; and the fastening force is imparted to the section between the hook member 10 and the fixing member 38 by means of the fastening member 20, so that the grating 4 can be fixed onto the supporting structure 2. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention is for fixing a grating used for a floor of a building, a ship, a plant, a floor for a road or a bridge, a lid of a road side groove, etc. to a frame or a gutter such as a frame for mounting and supporting the same. It is related with the fixing tool of grating.

  Grating is used for flooring of buildings, ships and plants, flooring for roads and bridges, and lids for roadside grooves. The gratings include those made of steel, aluminum, FRP (Fiber Reinforced Plastics), and rubber. As shown in FIG. 1 to be described later, the bone body 4a has a longitudinal direction and a lateral direction. A plurality of through-holes 4b penetrating in the thickness direction are defined by bone bodies forming the lattice shape by being arranged at predetermined intervals in the direction. A grating fixing tool is used to fix the grating to a frame such as a frame or the like for supporting the grating.

  FIG. 7 shows the structure of a conventional grating fixture. The fixture 100 is a fixture for a grating 101 used as a flooring material for buildings, ships, and plants. A stud bolt 103 that is pre-welded to the upper surface of the frame 102 and a through hole 101a of the grating 101 are used. A hook member 104 having a hook portion 104a that engages with an upper edge portion of a bone body 101b surrounding each other and a through hole 104b penetrating in the vertical direction in the center portion, and a nut 105 that is screwed into the stud bolt 103. It is configured. In order to fix the grating 101 to the frame 102 by the fixing tool 100, first, the grating 101 is installed and the stud bolt 103 is positioned. Next, the grating 101 is removed, the stud bolt 103 is welded to the frame 102, and the grating 101 is installed again. Next, the stud bolt 103 is inserted into the through hole 104b of the hook member 104, the hook portion 104a is engaged with the upper edge portion of the bone body 101b of the grating 101, and finally the nut 105 is screwed onto the stud bolt 103, Fixing is completed by tightening.

  In addition, the prior art regarding the fixing tool for the grating for road side grooves is disclosed in the following Patent Documents 1 to 3 and the like.

JP 2003-321869 A JP 2001-49730 A JP 2000-170240 A

  However, in the conventional fixture 100 shown in FIG. 7, since a welding operation for welding the stat bolt 103 to the frame 102 is necessary in advance, the efficiency of the fixing operation is low, and replacement when the bolt is deteriorated is difficult. There is a problem that. In addition, there is a problem that in order to hit the stud, it is necessary to carry out a detailed examination that takes time when planning.

  In view of such circumstances, the present invention eliminates the need for welding when fixing the grating, and can be attached easily and in a short period of time, whereby a grating fixture that can greatly improve the efficiency of the fixing work is provided. The purpose is to provide.

  In order to solve the above-described problems, the present invention places a grating having a plurality of through holes formed from bone bodies arranged in a lattice shape on a support structure having a through hole communicating with the through hole. And a fixing member for engaging with the bone body from the upper surface of the grating, and a fixing member inserted into the through hole from the through hole and engaged with the lower surface of the support structure. A grating fixing tool comprising: a member; and a tightening member that applies a tightening force between the hook member and the fixing member (Claim 1).

  In the present invention, preferably, the hook member and the fixing member are connected to each other so as to be rotatable about the same axis, and the fastening member is a screw that is screwed into the fixing member. It is a stick (claim 2).

  In the present invention, it is preferable that the tightening member is a screw rod screwed to the fixing member.

  In the present invention, preferably, the fixing member includes two wing members and a support member that is rotatably supported so that the wing members open and close, and the wing member is in a closed state. Thus, the through hole and the through hole can be inserted, opened to a predetermined position after insertion, and engaged with the lower surface of the support structure in an open state (claim 4).

  In the present invention, preferably, the fixing member includes two wing members and a support member that is rotatably supported so that the wing members open and close, and the wing member is in a closed state. Thus, the through hole and the through hole can be inserted, opened to a predetermined position after being inserted, and engaged with the lower surface of the support structure in an open state (Claim 5).

  According to the first aspect of the present invention, the fixing member is inserted from the through hole of the grating, the fixing member is engaged with the lower surface of the support structure, and tightened between the hook member and the fixing member by the tightening member. By applying a force, the grating can be fixed on the support structure. Therefore, it is possible to perform the attaching operation of the fixing tool from above the grating while the grating is installed on the support structure. In addition, since the fixture can be attached from the top of the grating, the installation work can be performed without installing a scaffold or the like after the grating is installed even at a high place. In addition, the attachment of the fixture only requires applying a tightening force between the hook member and the fixation member, and no welding is performed to attach the fixture, so a large machine such as a welding device is not required. .

  According to the invention of claim 2, since the hook member and the fixing member are connected to each other so as to be rotatable about the same axis, the fixing member is inserted into the through hole of the grating, and the hook member is connected to the upper surface of the grating. When the fixing member is in a position where it does not engage with the lower surface of the support structure while being engaged with the support member, the fixing member is positioned at a position where it is engaged with the lower surface of the support structure simply by rotating it with a tool or the like. can do. For this reason, according to such a fixture, the grating can be fixed to various types of support structures without being restricted by the arrangement direction of the frames of the support structures.

  According to the invention of claim 3, the fixing tool can be attached with a general tool such as a box wrench for rotating and tightening the screw rod, so that the attaching operation can be performed easily and in a short time.

  According to the invention of claim 4, the two wing members can be inserted through the through hole and the through hole in the closed state, open to a predetermined position after the insertion, and can be engaged with the lower surface of the support structure in the open state. Therefore, it can be easily inserted from above into the through hole of the grating, and can be easily engaged with the lower surface of the support structure after the wing member is opened.

  According to the fifth aspect of the present invention, one of the two wing members is configured to open to a substantially horizontal position by engaging with the other long portion, so that it opens and becomes horizontal. There will be no further falls from the situation. For this reason, since two wing members can be reliably engaged with the lower surface of the support structure, the grating can be reliably fixed to the support structure.

  In other words, according to the grating fixing tool of the present invention, it is not necessary to weld bolts when mounting the fixing tool, and it can be easily and quickly installed, thereby greatly improving the efficiency of the fixing work. The excellent effect of being able to be obtained is obtained.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the invention will be described in detail with reference to the accompanying drawings. In each figure, the same portions are denoted by the same reference numerals, and redundant description is omitted.

  The fixing tool of the grating according to the embodiment of the present invention is for fixing the grating used as a flooring material for plants and the like to a frame (support structure) such as a frame for mounting and supporting the grating. is there.

  FIG. 1 shows a state in which a grating is fixed to a support structure by a grating fixing tool 1 according to an embodiment of the present invention, and (B) is an XX cross-sectional view of (A). The grating 4 has a lattice shape by, for example, bone bodies 4a formed of a metal such as iron or aluminum or FRP being arranged at predetermined intervals in the vertical direction and the horizontal direction. A plurality of through holes 4b penetrating in the thickness direction are defined by the body. The thickness t of the grating 4 and the width w and height h of the through hole 4b vary depending on the type. For example, t = 10 mm to 40 mm, and the width w and height h are when the through hole 4b is square. , W (h) = 30 mm to 40 mm. Further, the support structure 2 for fixing the grating 4 is a frame or the like, and includes an outer frame frame 2A serving as an outer frame portion and an intermediate frame 2B connecting two opposite sides of the outer frame frame 2A. . The intermediate frame 2B is arranged in parallel with a predetermined interval therebetween, and an opening 2a communicating with the through hole 4b is formed therebetween.

  The “support structure” in the present invention is provided not only for a frame such as a frame, but also for a stepped portion for mounting and supporting the grating provided in the side groove for roads, and for mounting and supporting the grating. It is a concept that includes a structured structure.

  2 and 3 show the configuration of an embodiment of the grating fixture according to the present invention. FIG. 2 is a perspective view, FIG. 3A is a cross-sectional view along line YY in FIG. B) is a ZZ cross-sectional view in FIG. As shown in FIGS. 2 and 3, the grating fixing tool 1 (hereinafter, simply referred to as “fixing tool”) includes a hook member 10, a fastening member 20, and a fixing member 28. It is configured. Hereinafter, each component will be described in more detail.

  First, the hook member 10 will be described. In this example, the hook member 10 includes two hook portions 12 formed in a U-shaped cross-section with the opening direction facing downward, and a connecting portion 14 that connects the two hook portions 12 to each other. The hook portion 12 engages (hangs) on the upper surface of the grating 4, that is, the upper edge portions of two opposite sides of the bone body 4 a surrounding the through hole 4 b of the grating 4 (see FIG. 1). A through hole 14a (see FIG. 3) through which the tightening member 20 passes is provided at the center of the connecting portion 14. The through hole 14a has an inner diameter with a certain amount of play so that the relative rotation and vertical movement of the hook member 10 and the screw rod 20 are possible.

  Note that the hook portion 12 of the hook member 10 is not limited to a U-shaped cross section, and may be any other shape as long as it can be engaged with the bone body 4a of the grating 4 such as a U-shaped section or an L-shaped section. Also good. Further, in this example, the hook member 10 has hook portions 12 on both sides and is hooked on two opposite sides of the bone body 4a surrounding the through hole 4b of the grating 4, but the hook portion 12 is provided only on one side. It is good also as a shape which is provided and is caught only in any one side among the bone bodies surrounding the through-hole 4b.

  Next, the fastening member 20 will be described. In the present embodiment, the tightening member 20 is a screw rod, and in this example is a hexagonal bolt, and is inserted through the through hole 14a of the hook member 10 from above. The tightening member 20 includes a screw portion 22 in which a male screw is screwed and a head portion 24 provided on the upper portion of the screw portion 22. The head 24 of the screw rod 20 serves as a torque input portion for inputting torque by a tightening tool such as a box wrench. When the torque is input and rotated, a tightening force is applied to the hook member 10. ing. Reference numeral 26 is a washer interposed between the hook member 10 and the fastening member 20.

  The tightening member 20 is not limited to a hexagon bolt, and the head 24 may be in a form in which torque can be input by a tightening tool. For example, a hexagon socket head bolt or a head having a plus or minus shape is used. The bolt in which the groove part was formed may be sufficient.

  Next, the fixing member 28 will be described. The fixing member 28 includes two wing members 38 and a support member 30.

  The support member 30 is provided below the hook member 10 and is rotatably connected so that the fastening member 20 is screwed and connected and the two wing members 38 are opened and closed. The upper plate 32 includes a female screw portion 32a (see FIG. 3) into which the tightening member 20 is screwed, and two side plates 34 extending downward from both ends of the upper plate 32. As will be described later, the support member 30 supports the two blade members 38 at the lower end portion of the side plate 34 so as to be swingable around the axis centers a1 and a2. With this configuration, the two wing members can be inserted through the through hole 4b and the opening 2a in the closed state, open to a predetermined position after the insertion, and can be engaged with the lower surface of the support structure 2 in the opened state.

  Next, the two wing members 38 will be described. Here, FIG. 4 (A) shows the configuration of only two wing members 38, and FIG. 4 (B) shows the configuration of only the right wing member 38 in FIG. 4 (A). Is. Hereinafter, description will be given with reference to FIG. The two wing members 38 are each formed of a flat plate-like member, and projecting pins 40 projecting outward in the width direction are formed on both sides in the width direction of the one end portions facing each other. It is supported by being rotatably inserted into a pin hole 34 a formed in the support member 30. The axial centers a1 and a2 of the projecting pins 40 formed on the respective wing members 38 are disposed in parallel at predetermined intervals through the horizontal plane. Further, the two wing members are composed of a long portion 38a and a short portion 38b with the rotation axes a1 and a2 interposed therebetween, and one short portion 38b of the two wing members 38 is the other long portion. By engaging with the portion 38a, it is configured to open to a substantially horizontal position. As shown in FIG. 4, the short portions of the two wing members 38 are formed narrower than the long portions so as not to interfere with each other, and are provided at positions offset from each other in the width direction. Since the two wing members 38 are configured in this way, they can swing around horizontal axes a1 and a2 on one end side facing each other, and are in a state where they have fallen and become horizontal. There is no further opening.

  In the present embodiment, the two wing members 38 are provided so as to be locked with each other so that the wing members 38 are prevented from overturning. However, the present invention is not limited to this, and for example, the support member 30. An overturning restricting projection (not shown) may be provided to restrict the overturning of the wing member 38. In this example, the two blade members 38 are configured to swing around different axis centers a1 and a2. However, the two blade members 38 swing around the same shaft center. It is good also as a structure to make it do.

  Further, the protruding pin 40 of the wing member 38 is inserted into the pin hole 34a of the support member 30 with a slack that is always opened by its own weight. For this reason, the two wing members 38 are closed by abutting on the bone body 4a of the through hole 4b of the grating 4 when the fixture 1 is inserted into the through hole 4b of the grating 4 from above, thereby closing the through hole 4b. After passing, it will open by its own weight.

  Further, anti-slip portions 44 for preventing slipping with respect to the support structure 2 are provided on the upper surfaces on both sides of the wing member 38. The anti-slip portion 44 is a rubber plate in this example. The anti-slip portion 44 is not limited to a rubber plate, but may be any other suitable form as long as the coefficient of friction with the support structure 2 is increased, such as by forming the upper surface of the wing member 38 as a rough surface. Can be adopted.

  Next, a procedure for fixing the grating 4 on the support structure 2 using the above-described grating fixture 1 will be described with reference to FIGS.

  First, as shown in FIG. 1, the grating 4 is installed on the support structure 2. Next, the fixture 1 is inserted into the through hole 4b of the grating 4 from above. At this time, the fastening member 20 is loosened so that the entire length of the fixture 1 becomes long enough to open the wing member 4b after the wing member 38 has passed through the through hole 4b (FIG. 5A). When the fixture 1 is inserted into the through hole 4b of the grating 4, the two wing members 38 are closed by contacting the bone body 4a surrounding the through hole 4b (FIG. 5B), and the through hole 4b. After passing through, it opens by its own weight (FIG. 5C). At this time, the wing member 38 opens to a horizontal position and stops.

  Next, the hook portion 12 of the hook member 10 is engaged with the upper edge portion of the bone body 4a surrounding the through hole 4b in which the fixture 1 is inserted, and both sides of the two wing members 38 are supported by the support structure 2. When the two wing members 38 are not positioned directly below, positioning is performed so that both sides of the two wing members 38 are positioned immediately below the support structure 2. This positioning is performed by rotating the tightening member 20, thereby rotating the support member 30 connected to the tightening member 20, and thereby rotating the wing member 38 supported by the support member 30. Can do. The positioning can also be performed by inserting a rod-like tool (for example, a driver) from the through hole 4b of the grating 4 and pressing and rotating the side surface of the wing member 38 with this tool.

  If positioning is performed in this way, the wing member 38 is kept in contact with the lower surface of the support structure 2 so that the two wing members 38 are not rotated and displaced from each other. While holding the wing member 38 with a tool, a tightening tool such as a box wrench is attached to the head 24 of the tightening member 20, and the tightening member 20 is rotated and tightened with the tool to complete the mounting of the fixture 1. Thus, the grating 4 can be fixed on the support structure 2 as shown in FIG.

  In this example, the fixture is attached in a state where the longitudinal direction of the hook member 10 and the longitudinal direction of the wing member 38 are perpendicular to each other. However, the fixture 1 is attached in a state where the longitudinal directions of the hook members 10 face the same direction. May be.

In addition, as shown in FIG. 6A, when the intermediate frame 2B is not arranged in parallel in the support structure 2, the corners of the outer frame 2A are inclined with respect to the outer frame 2A. By providing the frame 2C, the fixture 1 can be attached and the grating 4 can be fixed as shown in FIG.
In addition, as shown in FIG. 6B, when the wing member 38 can be engaged with the lower surface of the corner portion of the outer frame frame 2A, there is no need to provide the oblique frame 2C. As shown, the fixture 1 can be attached and the grating 4 can be secured to the support structure 2.

  According to the above-described grating fixture 1, the fixing member 28 is inserted from the through hole 4 b of the grating 4, the fixing member 28 is engaged with the lower surface of the support structure 2, and the hook member 10 is engaged by the fastening member 20. By applying a tightening force between the fixing member 28 and the fixing member 28, the grating 4 can be fixed on the support structure 2. Therefore, the fixing device 1 can be attached from above the grating 4 while the grating 4 is installed on the support structure 2. Moreover, since the fixing tool 1 can be attached from the top of the grating 4, the installation work can be performed without installing a scaffold or the like after installing the grating even at a high place. The fixing device 1 can be attached only by applying a tightening force between the hook member 10 and the fixing member 28, and no welding is performed to attach the fixing device 1, so that a large-scale machine such as a welding machine is used. Do not need.

  Further, according to the fixing tool 1, the hook member 10 and the fixing member 28 are connected to each other so as to be rotatable around the same axis, so that the fixing member 28 is inserted into the through hole 4 b of the grating 4, and the hook member When the fixing member 28 is in a position where it does not engage the lower surface of the support structure 2 with the upper surface of the grating 4 engaged with the upper surface of the grating 4, the support structure is simply rotated by using a tool or the like. 2 can be positioned at a position where it engages with the lower surface of 2. Therefore, the grating 4 can be fixed to various types of support structures without being restricted by the frame arrangement direction of the support structures 2.

  Further, according to the fixture 1, the fixture 1 can be attached with a general tool such as a box wrench for rotating and tightening the screw rod, so that the attachment operation can be performed easily and in a short time.

  Further, according to the fixture 1, the two wing members 38 can be inserted through the through hole and the through hole in the closed state, open to a predetermined position after being inserted, and can be engaged with the lower surface of the support structure 2 in the opened state. Since it is configured, it can be easily inserted into the through-hole 4b of the grating 4 from above, and can be easily engaged with the lower surface of the support structure 2 after the wing member 38 is opened.

  Moreover, according to the fixture 1, since one short part 38b of the two wing | blade member 38 engages with the other long part 38a, it is comprised so that it may open to a substantially horizontal position, Therefore There is no further opening from the horizontal state. For this reason, since the two wing members 38 can be reliably engaged with the lower surface of the support structure 2, the grating 4 can be reliably fixed to the support structure 2.

  Further, according to the fixture 1, when the two wing members 38 are inserted into the through hole 4b of the grating 4 from above, the two wing members 38 are closed by abutting on the bone body 4a surrounding the through hole 4b, and the through hole 4b. Since it opens by its own weight after passing through, there is no need for an independent operation for closing the wing member 38 when the fixture 1 is inserted into the through hole 4b of the grating 4, and the wing member 38 passes through the through hole 4b. After that, no separate work is required to open it. That is, as the blade member 38 is inserted into the through hole 4b of the grating 4, the two blade members 38 are automatically opened and closed, so that the fixing device 1 can be attached more easily and in a short time. Can do.

  Further, according to the fixture 1, the hook member 10 has the hook portions 12 on both sides thereof, so that the hook portions 12 can be engaged with two opposing sides of the bone body 4 a surrounding the through hole 4 b of the grating 4. Thus, the tightening force of the tightening member 20 can be increased. For this reason, since the fixing capability of the fixing tool 1 can be improved, the grating 4 can be firmly fixed on the support structure 2.

  Further, according to the fixture 1, the anti-slip portion 44 is provided in the portion of the wing member 38 that engages with the support structure 2, so that the friction coefficient between the wing member 37 and the support structure 2 is increased. Can do. For this reason, since it is possible to prevent the blade member 38 from rotating and shifting when the tightening member 20 is rotated and tightened, the attaching operation of the fixture is further facilitated.

  It should be noted that the technical scope of the present invention is not limited to the above-described embodiment, and it is needless to say that various modifications can be made without departing from the gist of the present invention.

It is a figure which shows the state which fixed the grating with the fixing tool of the grating which concerns on embodiment of this invention. It is a perspective view which shows one Embodiment of the fixing tool of the grating of this invention. (A) is a YY sectional view of FIG. 2, and (B) is a ZZ sectional view of FIG. It is a figure which shows the structure of the two wing | blade member in the fixing tool of the grating which concerns on embodiment of this invention. It is a figure explaining the procedure which fixes grating by the fixing tool of the grating which concerns on embodiment of this invention. It is another figure which shows the state which fixed the grating by the fixing tool of the grating which concerns on embodiment of this invention. It is a figure explaining a prior art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Fixture 2 Support structure 2a Opening part 4 Grating 4a Bone 4b Through-hole 6A Outer frame frame 6B Intermediate frame 6C Diagonal frame 10 Hook member 12 Hook part 14 Connection part 14a Through hole 20 Tightening member 22 Screw part 24 Head 26 Washer 28 Fixing member 30 Support member 32 Upper plate 34 Side plate 34a Pin hole 38 Wing member 40 Projection pin 44 Non-slip prevention portion

Claims (5)

A grating fixing tool for mounting and fixing a grating having a plurality of through holes formed from bone bodies arranged in a lattice shape on a support structure having an opening communicating with the through holes. And
A hook member engaged with the bone body from the upper surface of the grating;
A fixing member that is inserted into the opening from the through hole and engages the lower surface of the support structure;
A clamping member that applies a clamping force between the hook member and the fixing member;
A grating fixture characterized by comprising:   2. The grating fixing device according to claim 1, wherein the hook member and the fixing member are connected to each other so as to be rotatable about the same axis.   The grating fixing tool according to claim 1, wherein the tightening member is a screw rod screwed into the fixing member.   The fixing member includes two wing members and a support member that rotatably supports the wing members so that the wing members open and close, and the wing members are inserted through the through holes and the openings in a closed state. The grating fixture according to any one of claims 1 to 3, wherein the grating fixture is configured to be able to open to a predetermined position after insertion and engage with a lower surface of the support structure in an open state.   The wing member includes a long portion and a short portion with a rotation axis therebetween, and the short portion is formed narrower than the long portion, and one short portion of the wing member is the other. The grating fixing device according to claim 4, wherein the grating fixing device is configured to open to a substantially horizontal position by engaging with the long portion.

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