JP5363876B2 - Positioning jig and positioning method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a positioning jig which makes it possible to perform position fixing of a pedestal by one worker, and to perform its position fixing even if a horizontal distance from an arbitrary reference point of the pedestal to an installation reference line is changed. <P>SOLUTION: The positioning jig 10 is used when the pedestal 20 disposed on a mounting base 30 installed on a horizontal reference surface (floor F) is positioned according to the reference line L2 provided on the reference surface. The positioning jig 10 includes: a jig body 11 in the shape of an almost band plate installed on the upper face of the pedestal 20; a slot 12 which is formed through the surface on the side of one end of the jig body in its longitudinal direction so as to extend in parallel with the longitudinal direction; a notch 13 for a suspended line guide, which is formed on the other end edge of the jig body in the longitudinal direction; and a scale 14 which has the starting end 14a located in the vicinity of the other end edge of the jig body in the longitudinal direction, and is formed along the end edge of the jig body in the longitudinal direction. The starting end of the scale is set at the position corresponding to the deeply recessed portion 13a of the notch. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a jig used for positioning an object located at a predetermined distance in the vertical direction from a horizontal reference surface such as a floor surface or a ground surface, and a positioning method using the jig. Specifically, for example, the present invention relates to a jig used when determining the position of a cradle disposed on a cradle installed on the floor of a building structure.

In electrical rooms and computer rooms, etc., a double floor structure using a free access floor to provide a space for wiring and piping between the floor of a building structure such as concrete slab and the floor finish There is. When installing heavy fixtures such as electrical panels in places where such free access floors are installed, the fixtures are not fixed to the free access floor, but are placed on the cradle and cradle installed on the floor of the building structure. It is indirectly fixed to the floor of the building structure using the placed cradle.
FIG. 5 is a diagram illustrating a state in which the cradle is arranged on the cradle installed on the floor of the building structure. The cradle 100 includes a pillar member 101 that supports the weight of the power receiving board placed on the cradle 110 and a base member 102 that is fixed on the pillar member 101 and on which the cradle 110 is placed. Usually, the positioning of the cradle 110 is performed by matching the positions of the installation reference line L1 drawn in advance on the floor F surface immediately below the side end surface of the cradle 110 and the downward swing 111 suspended from the cradle 110. To do. At this time, the swinging swing 111 is suspended so that the hanging thread 112 (the tip of the weight) of the swinging swing 111 is in contact with the side end surface of the cradle 110.

However, when the cradle 100 has a shape projecting in the horizontal direction from the side surface of the cradle 110 as in the flange portion 103 of FIG. 5, the floor surface portion L1 corresponding to a position immediately below the side end surface of the cradle 110 in advance. An installation reference line (relief ink) L2 is drawn at a predetermined distance α away from the side, and the lowering swing 111 is hung from a position separated from the side end surface of the cradle 110 by α using the insert 113 or the like. The cradle 110 is positioned by matching the positions of the swing 111 and the escape mark L2. In addition to the insert 113, positioning work was performed by combining a transition, a linear steel ruler, a vise, a leveler, etc. as necessary.
As described above, positioning using the installation reference line and the downward swing is generally performed. For example, Patent Document 1 describes an anchor frame positioning jig having arms protruding in four directions. When the anchor frame was discarded and positioned according to the reference line on the concrete, the down swing was suspended from each arm of the positioning jig placed on the anchor frame, and each downward swing was adjusted to be on the reference line. After that, the anchor frame is fixed. In the case of positioning using an insert or the like, at least an operator holding the insert or the like and an operator for moving the anchor frame are required. However, by using the positioning jig of Patent Document 1, the positioning operation of the anchor frame is performed. Can now be performed alone.

Japanese Patent Laid-Open No. 5-141095

However, the positioning jig described in Patent Document 1 cannot measure the horizontal distance from an arbitrary reference point to the installation reference line. Further, since the hanging position of the swinging swing is fixed with respect to the anchor frame, there is a problem that if the position of the installation reference line with respect to the anchor frame is changed, the positioning jig cannot be used.
The present invention has been made in view of the above-mentioned circumstances, and the positioning of the cradle can be performed by one worker, and the horizontal distance from any reference point of the cradle to the installation reference line is changed. An object of the present invention is to provide a positioning jig that can perform positioning even if it is used.

In order to solve the above-mentioned problem, the invention according to claim 1 is a case where a pedestal arranged on a cradle installed on a horizontal reference plane is positioned based on a reference line provided on the reference plane. A jig body in the form of a strip plate placed on the upper surface of the cradle, and a through hole formed in a plane near one end in the longitudinal direction of the jig body and parallel to the longitudinal direction. An elongated hole extending in the longitudinal direction of the jig body, a notch for a hanging thread guide formed at the other longitudinal end edge of the jig body, and a start end portion in the vicinity of the other longitudinal edge of the jig body. And a scale formed along the longitudinal edge of the jig body, wherein the starting end of the scale is set at a position corresponding to the inner depth of the notch.
According to a second aspect of the present invention, in the positioning jig according to the first aspect of the present invention, a leveling device for checking a horizontal state of the jig body is provided at an appropriate position of the jig body.
A third aspect of the present invention is the reference line in which a pedestal arranged on a cradle installed on a horizontal reference plane is provided on the reference plane using the positioning jig according to the first or second aspect. A positioning method based on the above, wherein a screw hole formed on the upper surface of the cradle and a long hole of the jig main body are communicated with each other, and a bolt is screwed into the screw hole, A step of placing the main body on the upper surface of the cradle, and a length by which the other end edge of the jig main body protrudes from the upper surface of the cradle by moving the jig main body on the cradle along the bolt Adjusting the reference length to a known reference length and a weighted suspension thread drawn from a cage installed on the upper surface of the cradle from the notch to the reference surface via the upper surface of the jig body And the weight at the tip of the hanging thread coincides with the reference line. Positioning method to the step of moving, a step of fixing the said cradle after the adjustment and the jig main body, comprising the cradle said to.

According to the positioning jig of the present invention, since the bolt can be inserted into the long hole and fixed to the cradle, the cradle can be positioned by one person, and labor and working time can be reduced. Can do. Further, since the amount of protrusion from the upper surface of the cradle can be freely adjusted by the long hole, positioning using the positioning jig of the present invention can be performed regardless of the position of the reference line.
In addition, since the scale is formed along the longitudinal edge from the position corresponding to the inner back of the notch, the distance between the downward swing suspended from the notch and the end surface of the cradle can be easily and accurately Can be set to

It is the top view and side view which showed the positioning jig which concerns on 1st embodiment. It is the top view and side view which showed the washer for curing of the positioning jig. It is a perspective view explaining the usage method of a positioning jig. It is the figure which expanded the volt | bolt B part of FIG. 3, (a) is a front view, (b) is a side view. It is a perspective view explaining the conventional positioning method.

Hereinafter, embodiments of the present invention will be described in detail.
A first embodiment of the present invention will be described with reference to FIGS. 1 and 2 to 4. FIG. 1 is a plan view and a side view showing a positioning jig according to the present embodiment. FIG. 2 is a plan view and a side view showing a curing washer of the positioning jig. FIG. 3 is a perspective view for explaining how to use the positioning jig. 4 is an enlarged view of the bolt B portion of FIG. 3, (a) is a front view, and (b) is a side view. The positioning jig of this embodiment is characterized in that it has a long hole and a scale.

The positioning jig 10 of the present invention is a jig for determining the position of a cradle arranged on a cradle installed on a horizontal reference surface such as a floor of a building structure.
The jig body 11 of the positioning jig 10 has a substantially strip-like shape made of a highly corrosion-resistant plated steel plate, and is formed in a long hole 12 extending in parallel with the longitudinal direction, penetratingly formed in a plane near the longitudinal end 11 a of the jig body 11. A hanging thread guide notch 13 formed on the other end edge 11b in the longitudinal direction of the jig body 11, and a start end 14a in the vicinity of the other end edge 11b in the longitudinal direction of the jig body 11 And a scale 14 formed along the longitudinal edge 11c of the tool body 11. The starting end portion 14 a of the scale 14 is set at a position corresponding to the inner back portion 13 a of the notch portion 13.
The jig body 11 is made of a material determined to be horizontal by a JIS class 1 level, for example, a steel flat plate. Considering ease of use, ease of carrying, difficulty in bending the jig itself, etc., for example, the length is about 230 mm × width 50 mm × thickness 3.2 mm.
As shown in FIG. 3, the jig body 11 has a screw hole (not shown) for fixing fixtures formed on the upper surface of the cradle 20 and a long hole 12 in communication with a bolt B screwed into the screw hole. By doing so, it can be detachably fixed to the cradle 20. Further, the fixing position of the jig body 11 according to the horizontal distance from the side end face 21 of the cradle 20 to the screw hole and the horizontal distance (α) from the position directly below the side end face 21 (line L1) to the installation reference line L2. Can be adjusted. In the case of the positioning jig 10 of FIG. 1, the size of the long hole 12 is Φ12 × length 100 mm.

The notch portion 13 is a portion that guides the hanging thread 41 of the downward swing 40, and has, for example, a V shape with an angle of 60 degrees. By providing the notch 13, unnecessary swinging of the weight 42 located at the tip of the hanging thread 41 can be prevented and stabilized.
The scale 14 can confirm the distance from the hanging part of the hanging thread 41, that is, the inner back part 13 a of the notch part 13 to the one end 11 a direction. For example, a JIS grade 1 steel ruler with a length of 150 mm is used. FIG. 1 shows an example in which a JIS grade 1 steel ruler is affixed to the jig main body 11, but a scale in which the scale 14 is directly printed or engraved on the jig main body may be used. It is sufficient that the scale 14 is provided on at least one of the longitudinal edges, but the scale 14 may be provided on both of the longitudinal edges. When projecting the jig body 11 from the side end face 21, it is easy to adjust the jig body 11 from the receiving base 20 substantially vertically by matching the desired positions of the scales 14 with the side end face 21. Moreover, by providing the scale 14 on both surfaces of the jig body 11, the jig can be used without being conscious of the front and back surfaces of the jig body.
When the positioning jig 10 is used, it is desirable to use a curing washer 15 as shown in FIG. 2 between the positioning jig 10 and the bolt B in order to protect the jig body 11 from scratches caused by the bolt B. . The curing washer 15 penetrates the washer main body 16 made of a plate-like member of a highly corrosion-resistant plated steel sheet, the buffer material 17 attached to at least one surface of the washer main body 16, and the washer main body 16 and the buffer material 17. And a round screw hole 18 formed as described above. For the buffer material 17, for example, chloroprene rubber can be used. The washer body 16 shown in FIG. 2 is 50 mm long × 30 mm wide × 1.6 mm thick, the buffer material 17 is 50 mm long × 30 mm wide × 1 mm thick, and the screw hole 18 is Φ12 mm.

A method for using the positioning jig 10 and a method for positioning the cradle 20 using the positioning jig 10 will be described with reference to FIGS.
As shown in FIG. 3, a cradle 30 including a column member 31 that supports the weight of the fixture and a pedestal member 32 on which the cradle 20 is placed is fixed to the floor F that is a horizontal reference plane. Yes. A flange portion 33 projects in the horizontal direction of the column member 31. On the base member 32, the cradle 20 for holding the bottom surface of the fixture is placed. There is a screw hole (not shown) for fixing the fixture on the upper surface of the cradle 20. On the floor F, an installation reference line L2 is drawn at a predetermined distance α from a position directly below the side end face of the cradle 20 (line L1).
First, in a state where the screw hole, the long hole 12 and the screw hole 18 are in communication, the bolt B is screwed into the screw hole, and the jig body 11 and the curing washer 15 are placed on the upper surface of the receiving base 20. At this time, the curing washer 15 is disposed between the jig body 11 and the bolt B in a state where the cushioning material 17 and the jig body 11 are in contact (see FIG. 4). Further, the bolt B is set in a temporarily fixed state. Then, the jig body 11 is moved on the receiving table 20 along the bolt B, and the starting end portion 14a is adjusted to a position that is horizontally separated from the side end surface 21 of the receiving table 20 by a distance α (reference length). The main body 11 is fixed to the cradle 20 with bolts B.
A holder 43 for holding the swinging swing 40 is installed on the upper surface of the cradle 20. Here, the downward swing 40 includes a weight 42 that hangs down in the vertical direction and indicates the installation reference line L2, and a hanging thread 41 that supports the weight 42. The holder 43 holds the hanging thread 41 so that it can be pulled out and stored. The hanging thread 41 with the weight 42 pulled out from the cage 43 is suspended from the notch 13 toward the floor F via the upper surface of the jig body 11. The cradle 20 is moved so that the weight 42 located at the tip of the hanging thread 41 coincides with the installation reference line L2, and the cradle 20 is fixed to the base member 32 by bolts or welding.

As described above, according to the positioning jig according to the present embodiment, the bolt can be inserted into the long hole and fixed to the cradle, so that the positioning work of the cradle can be performed by one person. Work time can be reduced. Further, since the amount of protrusion from the upper surface of the cradle can be freely adjusted by the long hole, positioning using the positioning jig of the present invention can be performed regardless of the position of the reference line.
In addition, since the scale is formed along the longitudinal edge from the position corresponding to the inner back of the notch, the distance between the downward swing suspended from the notch and the end surface of the cradle can be easily and accurately Can be set to
The positioning jig according to the present embodiment can also be used as a position confirmation jig. That is, the position of the cradle can be confirmed by attaching the positioning jig and the downward swing in the same manner as the positioning of the cradle and then confirming the position of the weight and the installation reference line. As in the case of positioning, there are few instruments required for position confirmation, and labor and working time can be reduced, and measurement errors can be reduced.

Since the jig body has a substantially band plate shape, a plurality of positioning jigs can be fixed to the cradle in a stacked state (see FIGS. 3 and 4). For example, at the corner of the cradle, the two jig bodies can be protruded in different directions. Since it is not necessary to alternately perform positioning and positioning of the positioning jig, work efficiency can be improved and installation errors of the cradle with respect to the installation reference line can be reduced. At this time, it is desirable that the curing washer 15 be disposed between the jig main body 51 and the bolt B located on the bolt B side to protect the jig main body 51 from scratches caused by the bolt B and the like.
In addition, as shown in FIG. 3, you may attach the round bubble tube 55 (level device) to the jig main body 51 proper position of the positioning jig 50. FIG. By attaching the level device, it can be easily confirmed whether or not the jig body 51 is horizontal.
The specific numerical values used in the description above are examples, and the present invention is not limited to these.

  DESCRIPTION OF SYMBOLS 10 ... Positioning jig | tool, 11 ... Jig body, 12 ... Long hole, 13 ... Notch part, 13a ... Inner inner part, 14 ... Scale, 14a ... Starting end part, 15 ... Curing washer, 16 ... Washer body, 17 DESCRIPTION OF SYMBOLS ... Buffer material, 18 ... Screw hole, 20 ... Base, 21 ... Side end surface, 30 ... Stand, 31 ... Column member, 32 ... Base member, 33 ... Flange part, 40 ... Swing down, 41 ... Hanging thread, 42 ... weight, 43 ... swing-down cage, 50 ... positioning jig, 51 ... jig body, 55 ... round bubble tube, 100 ... cradle, 101 ... pillar member, 102 ... base member, 103 ... flange part, 110 ... cradle, 112 ... hanging thread, 113 ... payment

Claims (3)

A positioning jig used when positioning a cradle disposed on a cradle installed on a horizontal reference surface based on a reference line provided on the reference surface,
A substantially strip-shaped jig main body placed on the upper surface of the cradle, a long hole penetratingly formed in a plane near one end in the longitudinal direction of the jig main body and extending parallel to the longitudinal direction, and the jig main body A hanging thread guide notch portion formed at the other longitudinal end edge of the jig body, a start end portion in the vicinity of the other longitudinal end edge of the jig body, and along the longitudinal edge of the jig body And a scale formed by
A positioning jig, wherein a starting end portion of the scale is set at a position corresponding to an inner back portion of the notch portion.   The positioning jig according to claim 1, further comprising a leveling device for confirming a horizontal state of the jig body at an appropriate position of the jig body. A positioning method for positioning a cradle disposed on a cradle installed on a horizontal reference surface based on a reference line provided on the reference surface, using the positioning jig according to claim 1. And
A step of screwing a bolt into the screw hole in a state where the screw hole formed on the upper surface of the cradle and the elongated hole of the jig main body are in communication, and placing the jig main body on the upper surface of the cradle When,
Adjusting the length of the other end edge of the jig body protruding from the upper surface of the cradle to a known reference length by moving the jig body on the cradle along the bolt; ,
Hanging a hanging thread with a weight drawn from a cage installed on the upper surface of the cradle from the notch portion toward the reference surface via the upper surface of the jig body;
Moving the cradle so that the weight of the hanging thread tip coincides with the reference line;
Fixing the cradle and the jig body after adjustment;
A positioning method comprising:

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