JPH08128149A - Hanger - Google Patents

Abstract

(57) [Summary] [Purpose] The purpose is to sandwich the rod on the fixed side and to suspend the rod perpendicularly to the rib without the need for a scaffold during work. [Structure] A hanger body 11 formed so as to receive the rib 2'of the fixed side 1 in a horizontal portion 11a, and pivoting around a pin 12 with respect to upper ends of vertical portions 11b on both sides of the hanger body 11. A pair of self-weight hanging type sandwiching pieces 13 formed so that end portions of the horizontally supported portions 13a and 14a which are supported so as to protrude toward the ribs 2'and the vertical portions 13b and 14b always extend along the outside of the lifting tool body 11. , 14 and the horizontal part 11 of the lifting tool body 11
The nut member 7 that is non-rotatably built in a and the horizontal portion 11 of the lifting tool body 11 that is screwed from below into the screw of the nut member 7.
and a rod 6 for pushing up the rib 2'received in a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiring plate supporting member such as a ceiling, a duct, a cable rack, a pipe supporting member, and lighting on the lower surface of a deck plate, H-shaped steel, L-shaped steel and other structural materials used in a building. TECHNICAL FIELD The present invention relates to a hanging tool used for hanging a device, an air conditioning member, and other various members.

[0002]

2. Description of the Related Art For example, in the case of constructing a concrete slab, a so-called deck plate in which a metal plate is curved in an uneven shape so that the trapezoid is continuous is horizontally installed, and concrete is laid on the so-called deck plate. , The method of integrating with the deck plate to form a concrete slab is widely used.

When piping, an interior ceiling, or the like is mounted on a slab using such a deck plate, a suspending tool is fixed to the lower surface of the deck plate from below, and a rod is added to the suspending tool to hang it down. The necessary mounting members are attached to the rod.

The above-mentioned conventional lifting tool is, for example, a real fair 2-8.
There are those disclosed in Japanese Patent Nos. 965 and 8966. This is a deck plate 1 as shown in Fig. 24.
Hold a pair of clamping pieces 3 and 3 so as to sandwich a rib 2 having a triangular cross section protruding from both sides on the lower surface of the clamping piece 3, stack the bases 3a and 3a of the clamping pieces 3 and 3 and mount the bolt 4 from above. The joint nut 5 having a long axial length is screwed into the threaded shaft portion of the bolt 4 projecting downward through the base portion 3a, the holding pieces 3 and 3 are engaged with the ribs 2, and then the joint nut 5 is tightened by turning. As a result, the bases 3a and 3a of the sandwiching pieces 3 and 3 which are overlapped by the head 4a of the bolt 4 and the joint nut 5 are brought close to each other, and the sandwiching pieces 3 and 3 are closed and fixed to the rib 2.

Then, the threaded portion at the upper end of the rod 6 is screwed into the lower half portion of the joint nut 5, and the rod 6 is suspended and a necessary mounting member is attached thereto.

[0006]

However, in the above-mentioned conventional lifting tool, it is necessary to tighten the joint nut 5 when mounting the lifting tool on the ribs 2 on the lower surface of the deck plate 1, so the work is performed at a high position. Since it is necessary to work on a scaffolding such as a step or a temporary stand, it is not easy to attach the lifting tool. In particular, mounting a ceiling requires a large number of suspending tools, which is not easy and the work efficiency must be low. Further, until the joint nut 5 is tightened, it is necessary to rotate the joint nut 5 with the other hand while holding the holding pieces 3 and 3 fitted to the rib 2 at a high position with one hand. In addition, since it is necessary to firmly fix it by using a tool for tightening it, the work is made more difficult because of the work at a high place. The same applies not only to the ribs of the deck plate but also to the ribs fixedly provided.

In view of the above, the present invention allows the rod to be sandwiched by rotating the rod from below the fixed side rib, and there is no scaffolding during work, and the rod is hung vertically to the rib. An object of the present invention is to provide a hanging tool that can be used.

[0008]

SUMMARY OF THE INVENTION As a means for solving the problems of the above-mentioned prior art, the present invention provides a substantially U-shaped lifting tool main body for receiving a fixed rib in a horizontal portion, and the lifting tool. A pair of clamps of self-weight hanging type, which are rotatably supported by a vertical portion of the main body, a horizontal portion of which is projected toward the rib side, and a vertical portion of which is always formed along the outside of the main body of the lifting jig; A nut member non-rotatably attached to the horizontal portion of the main body; and a rod which is screwed from below to the screw of the nut member and pushes up the rib received in the horizontal portion of the lifting jig body. According to a second aspect of the present invention, a substantially U-shaped suspending tool main body that receives a fixed-side rib in a horizontal portion, and a horizontal portion that is rotatably supported by a vertical portion of the suspending tool main body has a rib side. A pair of self-weight hanging type clamps that are formed so that the vertical portion always extends along the outside of the lifting device body. A piece, a nut member non-rotatably attached to the horizontal portion of the lifting device body, a pressing spring having a spring retainer that abuts a rib received in the lifting device body, and the nut member. A third invention is characterized in that a screw which is screwed from below to the screw of (3) is provided, and a third aspect of the present invention is a suspending tool main body having a horizontal portion for receiving an L-shaped rib on a fixed side, and a swinging tool main body. A gripping piece that holds the rib between the hanger and the horizontal portion of the hanger body that is movably supported, a nut member that is non-rotatably attached to the hanger body, and a screw of the nut member that is screwed from below. And a rod that pushes up the rib through the sandwiching piece in combination with each other. A fourth aspect of the invention is a lifting tool that is positioned below the H-shaped rib on the fixed side and is open at both ends. The main body is provided, and the suspending metal fittings that can move in and out are provided at both ends of the main body of the suspending tool. A self-weight hanging type clamping piece formed such that a flat portion protrudes toward the rib side and a vertical portion always extends along the outside of the hanging metal member, and a nut non-rotatably attached to the horizontal portion of the hanging body. It is characterized by comprising a member and a rod which is screwed from below to the screw of the nut member and pushes up the rib via the lifting tool body.
The target ribs include T-shaped ribs, triangular ribs, flanges of I-shaped steel and H-shaped steel, angle materials, flanges of C-channel materials, and the like.

[0009]

According to the above construction, in each invention, the rib on the fixed side is sandwiched by the sandwiching piece, and the rod is rotated from below the rib so that the lifting tool under the rib is in a fixed state in which the rib is sandwiched. Become. At the same time as this fixing, the rod is also fixed,
A necessary attachment member is attached to the lower portion of the rod and used for suspending a ceiling, a duct or the like.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the embodiments shown in the drawings.

In each of the following drawings, common parts are designated by the same reference numerals for easy understanding.

The embodiment shown in the drawings is described by exemplifying the case of being suspended on the ribs of the deck plate, but the same can be applied to rib-like objects other than the deck plate.

FIG. 1 is a side view of an embodiment of a lifting device according to the present invention, FIG. 2 is a plan view of a lifting device main body, and FIGS. Cross section reverse T
A lifting tool body 11 formed in a substantially U shape so as to receive the rib 2'of the mold in the horizontal portion 11a, and a pin 12 around the upper ends of the vertical portions 11b on both sides of the lifting tool body 11. A pair of self-weight pendant type clamps which are rotatably supported and whose end portions of the horizontal portions 13a and 14a project toward the rib 2'and the vertical portions 13b and 14b are always formed along the outside of the lifting tool body 11. Pieces 13 and 14, a nut member 7 that is non-rotatably built in the horizontal portion 11a of the lifting device body 11, and a horizontal portion of the lifting device body 11 that is screwed from below onto the screw of the nut member 7. And a rod 6 for pushing up the rib 2'received in 11a.

The space between the ends of the horizontal portions 13a and 14a is usually narrower than the width of the rib 2 ', and the holding pieces 13 and 14 are of a self-weight hanging type and can be rotated outward.
It cannot rotate because it contacts the lifting tool body 11 inside.

As shown in FIG. 2, the concrete structure is that the nut member 7 is placed on the upper surface of the horizontal portion 11a of the lifting device main body 11 at the central position in the longitudinal direction, and the side walls 11c and 11c of the portion.
11 formed by being extruded by press work or the like so as to protrude inward so as to press the side surface of the nut member 7.
The nut member 7 is non-rotatably restrained by d and 11d,
Moreover, the upper surface of the nut member 7 is pressed by the projections 11e, 11e formed by extruding a part of the upper edges of the side walls 11c, 11c onto the nut member 7 by pressing or the like, whereby the nut member 7 is moved upward. Being restrained without getting out.

Further, the outer edge of the side wall of the vertical portion 11a of the lifting tool main body 11 is slightly bent inward so that the locking edges 11f, 1
1f, horizontal portions 13a, 14 of the holding pieces 13, 14
The tip of "a" is held by the locking edges 11f, 11f so that the holding pieces 13, 14 are not inverted. In the explanatory views of FIGS. 3 to 7, the projections 11d and 11e and the locking edge 11f are not shown.

Next, the operation of the above embodiment will be described.

When attaching the lifting tool to the ribs 2'on the lower surface of the deck plate 1, the lifting tool body 11 is lifted from the bottom to approach the ribs 2 ', and both ends of the ribs 2 have a pair of clamping pieces 13. , 14 contact the lower surface of the end portions of the horizontal portions 13a, 14a (see FIG. 3), and when further lifted, the sandwiching pieces 13, 14 use the pins 12 as fulcrums for the horizontal portions 13a,
14a is rotated so as to be pushed down, whereby the vertical portions 13b and 14b are both rotated outward (see FIG. 4).

After the rib 2'passes between the ends of the horizontal portions 13a and 14a widened by this rotation, the holding pieces 13 and 14 return to the state of FIG. 1 and the rib 2'as shown in FIG. The lower surface of the lower part contacts the horizontal portion 11a of the lifting device main body 11.

Next, when the lifting tool main body 11 is released, the lifting tool main body 11 pivots downward due to its own weight, and the ends of the ribs 2'are horizontal portions 13a of the clamping pieces 13,14. , 14
The lifting tool main body 11 is suspended by contacting a (see FIG. 6). In this state, the lifting device main body 11 and the rib 2 ′ are still unstable.

When the rod 6 is screwed into the screw of the nut member 7 from below, the tip of the rod 6 gradually rises and is tightened until it comes into contact with the lower surface of the rib 2 '. 2'is fixed and in a stable state, and the installation is completed (see FIG. 7).

FIG. 8 shows another embodiment of the above-mentioned invention. In contrast to FIG. 1, in which the attachment of the lifting tool main body 11 and the holding pieces 13 and 14 is made rotatable by the pin 12, the hanging tool is suspended. A hole 21b having a notch 21a is formed on the holding tool body 21 side, and the notch 21a is passed through the holding pieces 23 and 24 to form a hole 2b.
The difference is that bent portions 23a and 24a that can rotate by engaging with 1b are provided. In this case, there is an advantage that the assembly is easy, but the attachment to the rib 2'is exactly the same as in the case of FIG.

FIG. 9 shows a modification of the above embodiment,
In this case, the bent portions 23a and 24a of FIG.
While it is only in the direction perpendicular to 3 and 24,
It is the same as the case of FIG. 8 except that bent portions 23b and 24b whose end portions are further bent toward the sandwiching pieces 23 and 24 are added to prevent disengagement.

FIG. 10 shows another embodiment of the present invention. In this case, a long bolt 6 is used in FIG. Two long bolts 16, 16 are provided on both sides (may be only one side) of the bolt 15, and a plate member 17 is horizontally attached to the lower part of the bolt 15 so that it can be used for purposes other than the ceiling plate. This is exactly the same as in the case of FIG.

FIG. 11 shows still another embodiment of the invention described above, in which the rib 2'of the deck plate of FIG.
The figure shows the case where the rib 2 is attached to the rib 2 having a triangular cross section. In this case, the clamping piece 33,
The difference is the same as the above embodiment except that inclined surfaces 33a and 34a are provided so that the tip end shape of 34 is attached in contact with each inclined surface of the rib 2.

FIG. 12 shows a modification of the above embodiment. In FIG. 11, the rib 2 ″ is attached to the oblique side of the rib 2 having a triangular cross section, whereas the rib 2 ″ projects to the left and right of the triangle. The difference is that the holding pieces 33, 34 are attached by bringing them into contact with the bottom portion 2 "a, and other points are exactly the same as in the case of FIG.

In addition, when the rib has a circular cross section or a similar shape like a pipe, the holding pieces 33, 3 are provided.
The tip shape of 4 may be adapted to it.

FIG. 13 shows an embodiment of a lifting tool according to the second invention, which is a substantially U-shaped lifting tool body 11 for receiving the rib 2'in the horizontal portion 11a, and the lifting tool body. A horizontal portion 13a rotatably supported by vertical portions 11b on both sides of 11;
14a protrudes toward the rib 2'and the vertical portions 13b and 14b
A pair of holding pieces 13 and 14 of self-weight hanging type that are always formed along the outside of the lifting tool body 11, and a nut member 7 that is non-rotatably built in the horizontal portion 11a of the lifting tool body 11. A pressing spring 19 provided with a spring retainer 18 that abuts the rib 2'received in the lifting tool body 11
And a rod 6 that is screwed into the nut member 7 from below.
It is equipped with and.

The spring retainer 18 has an inverted U-shaped cross section so as to cover the upper portions of the two pressing springs 19 and 19 provided apart from each other.
It is formed in a letter shape, and the tip of the rod 6 screwed from below into the screw of the nut member 7 can come into contact with the upper back surface at the center of the spring retainer 18.

Next, the operation of the embodiment shown in FIG. 13 will be described. To attach the lifting tool to the ribs 2'of the deck plate 1, first, lift the lifting tool body 11 and rotate the pair of clamping pieces 13 and 14 to suspend the ribs 2'as in the case of FIG. The lower surface of the rib 2 ′ is brought into contact with the upper portion of the spring retainer 18 by receiving it in the holder main body 11 and then pushing the pressing spring 19 below the spring retainer 18. When the hand is released from this state, the spring retainer 18 is raised by the repulsive force of the pressing spring 19 and the horizontal portions 13a, 14 of the holding pieces 13, 14 for holding the rib 2 '.
By sandwiching it with a, the lifting tool can be attached to the rib 2'without wobbling. After that, the rod 6 is screwed into the screw of the nut member 7, and the tip of the rod 6 comes into contact with the upper surface of the spring retainer 19 by screwing in, and the mounting is completed by tightening.

FIG. 14 shows another embodiment of the second invention,
In FIG. 13, the nut member 7 is built in the lifting tool main body 1 as in FIGS. 1 and 2, while the nut member 7 is rotatable on the lifting tool main body 11 by the pin 25. Two
The only difference is that it is attached via 2. As a result, the rod 6 has a degree of freedom that allows it to swing to the right and left in the figure to some extent. This method, that is, the use of the suspending tool 22 can be applied to each of the above-described embodiments according to its use.

FIG. 15 shows a modification of the above embodiment, and FIG.
In FIG. 3, the lifting tool main body 11 and the clamping pieces 13 and 14 are connected by the pin 12, whereas the lifting tool body 21 and the clamping pieces 23 and 24 are connected to the lifting tool body 21 as shown in FIG. Is different in that a cutout 21a and a hole 21b are provided, and bent portions 23a and 24a are provided on the sides of the sandwiching pieces 23 and 24, respectively, so that they are connected.

FIG. 16 shows still another embodiment of the second invention. The difference from FIG. 15 is that the nut member 7 can be rotated by the pin 25 on the lifting tool body 21 as shown in FIG. It is only the point attached via the hanging tool 22.

FIG. 17 shows an embodiment of a lifting tool according to the third invention, which is a lifting tool body 41 having a horizontal groove 41a for receiving the L-shaped rib 10 of the deck plate 9 and the lifting tool. A holding piece 4 which is rotatably supported by the main body 41 and holds the rib 10 with the horizontal groove 41a of the lifting tool main body 41.
2, a nut member 7 non-rotatably attached to the lifting tool body 41, and a rod 6 that is screwed from below onto the screw of the nut member 7 to push up the rib 10 via the holding piece 41. And the holding piece 42 is a lifting tool body 4
It is rotatably attached to 1 by a pin 43. The holding piece 42 is formed with a bent portion 42a so that the end portion on the release side abuts the base portion of the rib 10 to prevent the rib 10 from slipping out.

In order to attach the lifting tool to the rib 10 in this case, the rib 10 is sandwiched between the horizontal groove 41a of the lifting tool body 41 and the clamping piece 42, and the rod 6 is screwed onto the screw of the nut member 7 from below. Then, the attachment is completed by putting the tip into contact with the lower surface of the sandwiching piece 42 and tightening.

FIG. 18 shows a modification of the above-mentioned embodiment. In contrast to the sandwiching piece 52 of FIG. 17 made of a thin plate, a large sandwiching piece 45 is provided to more firmly prevent the rib 10 from coming out. The other points are the same as in FIG. 17.

FIG. 19 shows another embodiment of the third aspect of the present invention. FIG. 17 is different from FIG. 17 in that a pressing spring 46 is provided on the upper part of the nut member 7 so that the horizontal groove 41a of the lifting device main body 41 and the holding piece 42 are provided. When the rib 10 is sandwiched between them, the rib 10 is fixed beforehand so that the rib 10 does not sway.
The point of tightening with the rod 6 via the is similar to the case of FIG.

FIG. 20 shows still another embodiment of the third invention. In this case, the rib is assumed to be an angle, and the rib 10 can be attached in the same manner as in FIG. .

FIG. 21 shows still another embodiment of the third invention, wherein the rib 10 is L-shaped, and the lifting tool main body 51 has a horizontal portion 51a for receiving the rib 10, and the lifting tool main body. A holding piece 52 which is rotatably supported by the pin 51a and holds the rib 10 between the holding piece body 51 and the horizontal portion 51a of the holding tool body 51, and is non-rotatably attached to the holding tool body 51. The nut member 7 and the rod 6 that is screwed into the nut member 7 from below and pushes up the rib 10 via the holding piece 52 are provided. The sandwiching piece 52 in this case is composed of a horizontal portion 52a and a vertical portion 52b, and is of a self-weight hanging type like the one shown in FIG.

Then, the rib 10 received in the horizontal portion 51a of the lifting device main body 51 so as to come into contact with the lower side of the horizontal member 52a of the holding piece 52 is screwed from the lower side of the screw of the nut member 7 to the rod 6. The rib 10 is fixed by pushing up.

FIG. 22 shows a modification of FIG. 21, in which the spring retainer 1
8 and the pressing spring 19 are interposed, the rib 10 is pushed up not by the rod 6 but by the spring retainer 18.

FIG. 23 shows an embodiment of a suspending tool according to the fourth invention, in which a suspending tool body 61, which is located below the H-shaped rib 49 and whose both ends are open, is provided. Holding device body 6
1. A hanging metal fitting 62 that can move in and out is provided at both ends, and a horizontal portion 63a of the hanging metal fitting 62 protrudes toward the rib 49 side, and a vertical portion 63b is always formed along the outside of the hanging metal fitting 62. The holding piece 63, the nut member 7 non-rotatably attached to the lower side of the horizontal portion 61a of the lifting tool body 61, and the screw of the nut member 7 screwed from below to the lifting tool body. And a rod 6 for pushing up the rib 49 via 61.

The main body 61 of the lifting tool has a rectangular tube shape longer than the rib 49.
2 are furnished. The hanging metal fitting 62 has a rising portion 62a, and a self-weight hanging type holding piece 63 which is rotatable by a pin 64 is attached to the upper end thereof.
The sandwiching piece 63 is composed of a horizontal member 63a and a vertical member 63b with the pin 64 as the center, and the horizontal member 63a is a rib 49.
Facing up, the vertical members 63b are respectively provided with rising portions 62
It is provided so as to hang along a.

As a result, the rib 49 of the deck plate 48 is formed.
In order to attach the lifting tool to the first member, first lift the lifting tool main body 61 to bring both ends of the rib 49 into contact with and press the horizontal member 63a, and the horizontal member 63a rotates inward.
Contacts the upper surface of the lifting tool body 61. When the rod 6 is screwed into the screw of the nut member 7 from below in this state and screwed in, the tip of the rod 6 pushes up the rib 49.
9 is lifted and fixed so as to contact the lower surface of the horizontal member 63a of the sandwiching piece 63.

FIG. 24 shows a notch 61a (A portion) provided in the upper part of the lifting tool body 61 side when fixing the hanging metal fitting 62 to the lifting tool body 61, or a hole 61b (B) provided in the lower part.
Part) or a hole 61c (C part) provided in the side part,
FIG. 25 shows a ratchet type projection 62c or a convex portion 62d on the side of the hanging metal fitting 62 that engages with the hanging metal fitting 6 by using them in combination depending on the selection.
2 can be set by sliding it to a desired position on the lifting tool body 61. In FIG. 24, (a) is a plan view when a protrusion 62c is provided, (b) is a side view of (a), (c) is a plan view when a protrusion 62d is provided, and (d) is the same as (d). ) Shows a side view of (c).

[0046]

As described above, the present invention has the second and third aspects.
Including the fourth aspect of the invention, it is not necessary to use a nut with a long axial length that has been conventionally used, and the rod is applied to the rib by holding the rod from below the fixed-side rib, and the rod is rotated as it is. Since the holding tool can be fixed to the rib, there is no need to use a step or scaffold,
It is possible to perform the work of attaching the lifting tool safely and efficiently. Further, since the nut member is fixed directly or indirectly to the lifting tool body, there is no separation of parts and it can be handled as an integrated body, is easy to handle, and no parts are lost. Furthermore, since the nut is fixed to the lifting device body, there is no protrusion such as a bolt, and it is compact,
In addition, the parts price is low, the cost is low, and the parts can be provided at low cost.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a lifting tool according to the present invention.

FIG. 2 is a plan view of a lifting tool body of the lifting tool of FIG.

FIG. 3 is an explanatory view showing a process of attaching the lifting tool of FIG. 1 to a rib.

FIG. 4 is an explanatory view showing a process of attaching the lifting tool of FIG. 1 to a rib.

FIG. 5 is an explanatory view showing a process of attaching the lifting tool of FIG. 1 to a rib.

FIG. 6 is an explanatory diagram showing a process of attaching the lifting tool of FIG. 1 to a rib.

FIG. 7 is an explanatory view showing a state in which the lifting tool of FIG. 1 is completely attached.

FIG. 8 is a front view of a modified example of the lifting tool of FIG.

FIG. 9 is a front view of another modification of the same.

FIG. 10 is a front view of still another modified example.

FIG. 11 is a front view of still another modified example.

FIG. 12 is a front view of still another modified example.

FIG. 13 is a front view of an embodiment of the lifting tool according to the second invention.

FIG. 14 is a front view of another embodiment of the lifting tool according to the second invention.

FIG. 15 is a front view of the modification.

FIG. 16 is a front view of another modification of the same.

FIG. 17 is a front view of an embodiment of the lifting tool according to the third invention.

FIG. 18 is a front view of the modification.

FIG. 19 is a front view of another modification of the same.

FIG. 20 is a front view of still another modification example.

FIG. 21 is a front view of still another modification example.

FIG. 22 is a front view of still another modification example.

FIG. 23 is a front view of an embodiment of the lifting tool according to the fourth invention.

24 is a plan view, (b) is a front view showing a selective engagement position with a slide member of the lifting device main body of FIG. 23;
(C) is a side view.

FIG. 25 shows an example of a ratchet of a hanging metal fitting internally housed in the hanging device main body of FIG. 24, (a) is a plan view when a protrusion is provided, (b) is a side view of (a), FIG. 7C is a plan view when a convex portion is provided, and FIG. 8D is a side view of FIG.

FIG. 26 is a front view showing a conventional lifting tool.

[Explanation of symbols]

 1 Deck Plate 2, 2 ', 2 "Rib 6 Rod 7 Nut Member 9 Deck Plate 10 Rib 11 Lifting Tool Main Body 11a Horizontal Part 11b Vertical Part 12 Pins 13, 14 Clamping Piece 13a, 14a Horizontal Part 13b, 14b Vertical Part 18 Spring retainer 19 Spring 21 Lifting tool main body 21a Notch 21b Hole 23, 24 Holding piece 23a, 24a Bending part 33, 34 Holding piece 41 Lifting tool body 41a Horizontal groove 42 Holding piece 43 pin 45 Holding piece 46 Spring 48 deck Plate 49 Rib 51 Lifting tool body 52 Clamping piece 52a Horizontal part 52b Vertical part 53 pin 61 Lifting tool body 62 Hanging metal fitting 63 Clamping piece 63a Horizontal part 63b Vertical part 64 pin

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[Procedure amendment]

[Submission date] January 10, 1995

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction content]

[Document name] Statement

[Title of Invention] Lifting tool

[Claims]

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiring plate supporting member such as a ceiling, a duct, a cable rack, a pipe supporting member, and lighting on the lower surface of a deck plate, H-shaped steel, L-shaped steel and other structural materials used in a building. TECHNICAL FIELD The present invention relates to a hanging tool used for hanging a device, an air conditioning member, and other various members.

[0002]

2. Description of the Related Art For example, in the case of constructing a concrete slab, a so-called deck plate in which a metal plate is curved in an uneven shape so that the trapezoid is continuous is horizontally installed, and concrete is laid on the so-called deck plate. , The method of integrating with the deck plate to form a concrete slab is widely used.

When piping, an interior ceiling, or the like is mounted on a slab using such a deck plate, a suspending tool is fixed to the lower surface of the deck plate from below, and a rod is added to the suspending tool to hang it down. The necessary mounting members are attached to the rod.

The above-mentioned conventional lifting tool is, for example, a real fair 2-8.
There are those disclosed in Japanese Patent Nos. 965 and 8966. This is a deck plate 1 as shown in Fig. 22.
Hold a pair of clamping pieces 3 and 3 so as to sandwich a rib 2 having a triangular cross section protruding from both sides on the lower surface of the clamping piece 3, stack the bases 3a and 3a of the clamping pieces 3 and 3 and mount the bolt 4 from above. The joint nut 5 having a long axial length is screwed into the threaded shaft portion of the bolt 4 projecting downward through the base portion 3a, the holding pieces 3 and 3 are engaged with the ribs 2, and then the joint nut 5 is tightened by turning. As a result, the bases 3a and 3a of the sandwiching pieces 3 and 3 which are overlapped by the head 4a of the bolt 4 and the joint nut 5 are brought close to each other, and the sandwiching pieces 3 and 3 are closed and fixed to the rib 2.

Then, the threaded portion at the upper end of the rod 6 is screwed into the lower half portion of the joint nut 5, and the rod 6 is suspended and a necessary mounting member is attached thereto.

[0006]

However, in the above-mentioned conventional lifting tool, it is necessary to tighten the joint nut 5 when mounting the lifting tool on the ribs 2 on the lower surface of the deck plate 1, so the work is performed at a high position. Since it is necessary to work on a scaffolding such as a step or a temporary stand, it is not easy to attach the lifting tool. In particular, mounting a ceiling requires a large number of suspending tools, which is not easy and the work efficiency must be low. Further, until the joint nut 5 is tightened, it is necessary to rotate the joint nut 5 with the other hand while holding the holding pieces 3 and 3 fitted to the rib 2 at a high position with one hand. In addition, since it is necessary to firmly fix it by using a tool for tightening it, the work is made more difficult because of the work at a high place. The same applies not only to the ribs of the deck plate but also to the ribs fixedly provided.

In view of the above, the present invention allows the rod to be sandwiched by rotating the rod from below the fixed side rib, and there is no scaffolding during work, and the rod is hung vertically to the rib. An object of the present invention is to provide a hanging tool that can be used.

[0008]

SUMMARY OF THE INVENTION As a means for solving the problems of the above-mentioned prior art, the present invention provides a substantially U-shaped lifting tool main body for receiving a fixed rib in a horizontal portion, and the lifting tool. A pair of clamps of self-weight hanging type, which are rotatably supported by a vertical portion of the main body, a horizontal portion of which is projected toward the rib side, and a vertical portion of which is always formed along the outside of the main body of the lifting jig; A nut member non-rotatably attached to the horizontal portion of the main body; and a rod which is screwed from below to the screw of the nut member and pushes up the rib received in the horizontal portion of the lifting jig body. According to a second aspect of the present invention, a substantially U-shaped suspending tool main body that receives a fixed-side rib in a horizontal portion, and a horizontal portion that is rotatably supported by a vertical portion of the suspending tool main body has a rib side. A pair of self-weight hanging type clamps that are formed so that the vertical portion always extends along the outside of the lifting device body. A piece, a nut member non-rotatably attached to the horizontal portion of the lifting device body, a pressing spring having a spring retainer that abuts a rib received in the lifting device body, and the nut member. A third invention is characterized in that a substantially U-shaped lifting tool main body having a horizontal portion for receiving the L-shaped rib on the fixed side is provided, and a rod that is screwed from below to the screw of the above. One hanging piece of a self-weight hanging type, which is rotatably supported on one upper end of the tool main body and has a horizontal portion protruding toward the rib side and a vertical portion always extending along the outside of the hanging tool main body; A fourth aspect of the present invention is characterized in that a nut member fixed to the main body in a non-rotatable manner and a rod that is screwed from below into the nut member and pushes up the rib are provided. A suspending tool main body, which is located below the rib and is open at both ends, is provided. And a hanging piece which is formed such that a horizontal portion of each hanging piece protrudes toward the rib side and a vertical portion of the hanging piece is always along the outside of the hanging piece member, and the hanging piece. A nut member non-rotatably attached to a horizontal portion of the tool body; and a rod that is screwed from below to a screw of the nut member and pushes up the rib via the lifting tool body. To do. The target ribs are T-shaped ribs, triangular ribs,
It includes flanges of I-section steel and H-section steel, angle materials, flanges of C-channel materials, and the like.

[0009]

According to the above construction, in each invention, the rib on the fixed side is sandwiched by the sandwiching piece, and the rod is rotated from below the rib so that the lifting tool under the rib is in a fixed state in which the rib is sandwiched. Become. At the same time as this fixing, the rod is also fixed,
A necessary attachment member is attached to the lower portion of the rod and used for suspending a ceiling, a duct or the like.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the embodiments shown in the drawings.

In each of the following drawings, common parts are designated by the same reference numerals for easy understanding.

The embodiment shown in the drawings is described by exemplifying the case of being suspended on the ribs of the deck plate, but the same can be applied to rib-like objects other than the deck plate.

FIG. 1 is a side view of an embodiment of a lifting device according to the present invention, FIG. 2 is a plan view of a lifting device main body, and FIGS. Cross section reverse T
A lifting tool body 11 formed in a substantially U shape so as to receive the rib 2'of the mold in the horizontal portion 11a, and a pin 12 around the upper ends of the vertical portions 11b on both sides of the lifting tool body 11. A pair of self-weight pendant type clamps which are rotatably supported and whose end portions of the horizontal portions 13a and 14a project toward the rib 2'and the vertical portions 13b and 14b are always formed along the outside of the lifting tool body 11. Pieces 13 and 14, a nut member 7 that is non-rotatably built in the horizontal portion 11a of the lifting device body 11, and a horizontal portion of the lifting device body 11 that is screwed from below onto the screw of the nut member 7. And a rod 6 for pushing up the rib 2'received in 11a.

The space between the ends of the horizontal portions 13a and 14a is usually narrower than the width of the rib 2 ', and the holding pieces 13 and 14 are of a self-weight hanging type and can be rotated outward.
It cannot rotate because it contacts the lifting tool body 11 inside.

As shown in FIG. 2, the concrete structure is that the nut member 7 is placed on the upper surface of the horizontal portion 11a of the lifting device main body 11 at the central position in the longitudinal direction, and the side walls 11c and 11c of the portion.
11 formed by being extruded by press work or the like so as to protrude inward so as to press the side surface of the nut member 7.
The nut member 7 is non-rotatably restrained by d and 11d,
Moreover, the upper surface of the nut member 7 is pressed by the projections 11e, 11e formed by extruding a part of the upper edges of the side walls 11c, 11c onto the nut member 7 by pressing or the like, whereby the nut member 7 is moved upward. Being restrained without getting out.

Further, the outer edge of the side wall of the vertical portion 11a of the lifting tool main body 11 is slightly bent inward so that the locking edges 11f, 1
1f, horizontal portions 13a, 14 of the holding pieces 13, 14
The tip of "a" is held by the locking edges 11f, 11f so that the holding pieces 13, 14 are not inverted. In the explanatory views of FIGS. 3 to 7, the projections 11d and 11e and the locking edge 11f are not shown.

Next, the operation of the above embodiment will be described.

When attaching the lifting tool to the ribs 2'on the lower surface of the deck plate 1, the lifting tool body 11 is lifted from the bottom to approach the ribs 2 ', and both ends of the ribs 2 have a pair of clamping pieces 13. , 14 contact the lower surface of the end portions of the horizontal portions 13a, 14a (see FIG. 3), and when further lifted, the sandwiching pieces 13, 14 use the pins 12 as fulcrums for the horizontal portions 13a,
14a is rotated so as to be pushed down, whereby the vertical portions 13b and 14b are both rotated outward (see FIG. 4).

After the rib 2'passes between the ends of the horizontal portions 13a and 14a widened by this rotation, the holding pieces 13 and 14 return to the state of FIG. 1 and the rib 2'as shown in FIG. The lower surface of the lower part contacts the horizontal portion 11a of the lifting device main body 11.

Next, when the lifting tool main body 11 is released, the lifting tool main body 11 pivots downward due to its own weight, and the ends of the ribs 2'are horizontal portions 13a of the clamping pieces 13,14. , 14
The lifting tool main body 11 is suspended by contacting a (see FIG. 6). In this state, the lifting device main body 11 and the rib 2 ′ are still unstable.

When the rod 6 is screwed into the screw of the nut member 7 from below, the tip of the rod 6 gradually rises and is tightened until it comes into contact with the lower surface of the rib 2 '. 2'is fixed and in a stable state, and the installation is completed (see FIG. 7).

FIG. 8 shows another embodiment of the above-mentioned invention. In contrast to FIG. 1, in which the attachment of the lifting tool main body 11 and the holding pieces 13 and 14 is made rotatable by the pin 12, the hanging tool is suspended. A hole 21b having a notch 21a is formed on the holding tool body 21 side, and the notch 21a is passed through the holding pieces 23 and 24 to form a hole 2b.
The difference is that bent portions 23a and 24a that can rotate by engaging with 1b are provided. In this case, there is an advantage that the assembly is easy, but the attachment to the rib 2'is exactly the same as in the case of FIG.

FIG. 9 shows a modification of the above embodiment,
In this case, the bent portions 23a and 24a of FIG.
While it is only in the direction perpendicular to 3 and 24,
It is the same as the case of FIG. 8 except that bent portions 23b and 24b whose end portions are further bent toward the sandwiching pieces 23 and 24 are added to prevent disengagement.

FIG. 10 shows another embodiment of the present invention. In this case, a long bolt 6 is used in FIG. Two long bolts 16, 16 are provided on both sides (may be only one side) of the bolt 15, and a plate member 17 is horizontally attached to the lower part of the bolt 15 so that it can be used for purposes other than the ceiling plate. This is exactly the same as in the case of FIG.

FIG. 11 shows still another embodiment of the invention described above, in which the rib 2'of the deck plate of FIG.
The figure shows the case where the rib 2 is attached to the rib 2 having a triangular cross section. In this case, the clamping piece 33,
The difference is the same as the above embodiment except that inclined surfaces 33a and 34a are provided so that the tip end shape of 34 is attached in contact with each inclined surface of the rib 2.

FIG. 12 shows a modification of the above embodiment. In FIG. 11, the rib 2 ″ is attached to the oblique side of the rib 2 having a triangular cross section, whereas the rib 2 ″ projects to the left and right of the triangle. The difference is that the holding pieces 33, 34 are attached by bringing them into contact with the bottom portion 2 "a, and other points are exactly the same as in the case of FIG.

In addition, when the rib has a circular cross section or a similar shape like a pipe, the holding pieces 33, 3 are provided.
The tip shape of 4 may be adapted to it.

FIG. 13 shows an embodiment of a lifting tool according to the second invention, which is a substantially U-shaped lifting tool body 11 for receiving the rib 2'in the horizontal portion 11a, and the lifting tool body. A horizontal portion 13a rotatably supported by vertical portions 11b on both sides of 11;
14a protrudes toward the rib 2'and the vertical portions 13b and 14b
A pair of holding pieces 13 and 14 of self-weight hanging type that are always formed along the outside of the lifting tool body 11, and a nut member 7 that is non-rotatably built in the horizontal portion 11a of the lifting tool body 11. A pressing spring 19 provided with a spring retainer 18 that abuts the rib 2'received in the lifting tool body 11
And a rod 6 that is screwed into the nut member 7 from below.
It is equipped with and.

The spring retainer 18 has an inverted U-shaped cross section so as to cover the upper portions of the two pressing springs 19 and 19 provided apart from each other.
It is formed in a letter shape, and the tip of the rod 6 screwed from below into the screw of the nut member 7 can come into contact with the upper back surface at the center of the spring retainer 18.

Next, the operation of the embodiment shown in FIG. 13 will be described. To attach the lifting tool to the ribs 2'of the deck plate 1, first, lift the lifting tool body 11 and rotate the pair of clamping pieces 13 and 14 to suspend the ribs 2'as in the case of FIG. The lower surface of the rib 2 ′ is brought into contact with the upper portion of the spring retainer 18 by receiving it in the holder main body 11 and then pushing the pressing spring 19 below the spring retainer 18. When the hand is released from this state, the spring retainer 18 is raised by the repulsive force of the pressing spring 19 and the horizontal portions 13a, 14 of the holding pieces 13, 14 for holding the rib 2 '.
By sandwiching it with a, the lifting tool can be attached to the rib 2'without wobbling. After that, the rod 6 is screwed into the screw of the nut member 7, and the tip of the rod 6 comes into contact with the upper surface of the spring retainer 19 by screwing in, and the mounting is completed by tightening.

FIG. 14 shows another embodiment of the second invention,
In FIG. 13, the nut member 7 is built in the lifting tool main body 1 as in FIGS. 1 and 2, while the nut member 7 is rotatable on the lifting tool main body 11 by the pin 25. Two
The only difference is that it is attached via 2. As a result, the rod 6 has a degree of freedom that allows it to swing to the right and left in the figure to some extent. This method, that is, the use of the suspending tool 22 can be applied to each of the above-described embodiments according to its use.

FIG. 15 shows a modification of the above embodiment, and FIG.
In FIG. 3, the lifting tool main body 11 and the clamping pieces 13 and 14 are connected by the pin 12, whereas the lifting tool body 21 and the clamping pieces 23 and 24 are connected to the lifting tool body 21 as shown in FIG. Is different in that a cutout 21a and a hole 21b are provided, and bent portions 23a and 24a are provided on the sides of the sandwiching pieces 23 and 24, respectively, so that they are connected.

FIG. 16 shows still another embodiment of the second invention. The difference from FIG. 15 is that the nut member 7 can be rotated by the pin 25 on the lifting tool body 21 as shown in FIG. It is only the point attached via the hanging tool 22.

FIG. 17 shows an embodiment of the third invention, wherein the rib 10 is L-shaped, and the lifting tool body 41 having a horizontal portion 41a for receiving the rib 10 and the lifting tool body 41.
a is rotatably supported by a pin 43, and the lifting tool main body 4
1. A holding piece 42 for holding the rib 10 between the first horizontal portion 41a, a nut member 7 non-rotatably attached to the lifting body 41, and a screw of the nut member 7 screwed from below. Rod 6 that pushes up the rib 10 via the sandwiching piece 42.
It has and. The sandwiching piece 42 in this case is the horizontal portion 42.
It is composed of a and a vertical portion 42b, and is of a self-weight hanging type like the one shown in FIG.

Then, the rib 10 received in the horizontal portion 41a of the lifting device main body 41 so as to come into contact with the lower side of the horizontal member 42a of the holding piece 42 is screwed from the lower side of the screw of the nut member 7 to the rod 6. The rib 10 is fixed by pushing up.

FIG. 18 shows a modification of FIG. 17, in which the spring retainer 1
8 and the pressing spring 19 are interposed, the rib 10 is pushed up not by the rod 6 but by the spring retainer 18.

FIG. 19 shows an embodiment of a suspending tool according to the fourth invention, in which a suspending tool main body 51 which is located below the H-shaped rib 39 and whose both ends are opened is provided. Holding device body 5
A hanging metal fitting 52 is provided at both ends of the hanging metal fitting 1, and a horizontal portion 53a of each hanging metal fitting 52 projects toward the rib 39 side, and a vertical portion 53b is always formed along the outside of the hanging metal fitting 52. Holding piece 53, the nut member 7 fixed to the lower side of the horizontal portion 51a of the lifting tool body 51 in a non-rotatable manner, and the screw of the nut member 7 screwed from below to the lifting tool body. And a rod 6 that pushes up the rib 39 via 51.

The suspension main body 51 is a rectangular cylinder longer than the rib 39, and the suspension fittings 52, 5 which can be inserted and removed at both ends.
2 are furnished. The hanging metal fitting 52 has a rising portion 52a, and a self-weight hanging type holding piece 53 which is rotatable by a pin 54 is attached to the upper end thereof.
The sandwiching piece 53 is composed of a horizontal member 53a and a vertical member 53b with the pin 54 as the center, and the horizontal member 53a is a rib 39.
Facing up, the vertical members 53b are respectively raised parts 52
It is provided so as to hang along a.

As a result, the rib 39 of the deck plate 38 is formed.
In order to attach the lifting tool to the rib, first, the lifting tool main body 51 is lifted to bring both ends of the rib 39 into contact with the horizontal member 53a and press the horizontal member 53a.
Contacts the upper surface of the lifting tool body 51. When the rod 6 is screwed into the screw of the nut member 7 from below in this state and screwed in, the tip of the rod 6 pushes up the rib 39.
9 is lifted and fixed so as to contact the lower surface of the horizontal member 53a of the sandwiching piece 53.

FIG. 20 shows a notch 51a (A portion) provided on the upper part of the lifting tool body 51 side when fixing the hanging metal fitting 52 to the lifting tool body 51, or a hole 51b (B) provided on the lower side.
Part), or a hole 51c (C part) provided in the side part,
FIG. 21 shows a ratchet type projection 52c or a convex portion 52d on the side of the hanging metal fitting 52 which engages with the hanging metal fitting 5 depending on the selection.
2 can be set by sliding it to a desired position on the lifting tool body 51. 20A is a plan view when the protrusion 52c is provided, FIG. 20B is a side view of FIG. 20A, FIG. 20C is a plan view when the protrusion 52d is provided, and FIG. Shows a side view of (c).

[0041]

As described above, the present invention has the second and third aspects.
Including the fourth aspect of the invention, it is not necessary to use a nut having a long shaft length that has been conventionally used, and a rod is applied from below the fixed side rib to the rib, and the rod is rotated as it is to suspend. Since the holding tool can be fixed to the rib, there is no need to use a step or scaffold,
It is possible to perform the work of attaching the lifting tool safely and efficiently. Further, since the nut member is directly or indirectly fixed to the main body of the lifting tool, there is no separation of the parts and the parts can be handled as an integrated body, easy to handle, and no parts are lost. Furthermore, since the nut is fixed to the lifting device body, there is no protrusion such as a bolt, and it is compact,
In addition, the parts price is low, the cost is low, and the parts can be provided at low cost.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a lifting tool according to the present invention.

FIG. 2 is a plan view of a lifting tool body of the lifting tool of FIG.

FIG. 3 is an explanatory view showing a process of attaching the lifting tool of FIG. 1 to a rib.

FIG. 4 is an explanatory view showing a process of attaching the lifting tool of FIG. 1 to a rib.

FIG. 5 is an explanatory view showing a process of attaching the lifting tool of FIG. 1 to a rib.

FIG. 6 is an explanatory diagram showing a process of attaching the lifting tool of FIG. 1 to a rib.

FIG. 7 is an explanatory view showing a state in which the lifting tool of FIG. 1 is completely attached.

FIG. 8 is a front view of a modified example of the lifting tool of FIG.

FIG. 9 is a front view of another modification of the same.

FIG. 10 is a front view of still another modified example.

FIG. 11 is a front view of still another modified example.

FIG. 12 is a front view of still another modified example.

FIG. 13 is a front view of an embodiment of the lifting tool according to the second invention.

FIG. 14 is a front view of another embodiment of the lifting tool according to the second invention.

FIG. 15 is a front view of the modification.

FIG. 16 is a front view of another modification of the same.

FIG. 17 is a front view of an embodiment of the lifting tool according to the third invention.

FIG. 18 is a front view of another modification of the same.

FIG. 19 is a front view of an embodiment of the lifting tool according to the fourth invention.

FIG. 20 is a view showing a selective engagement position with the slide member of the lifting tool body of FIG. 19, (a) is a plan view, (b) is a front view,
(C) is a side view.

21A and 21B show an example of a ratchet of a hanging metal fitting internally housed in the hanging device main body of FIG. 20, in which FIG. 21A is a plan view when a protrusion is provided, FIG. 21B is a side view of FIG. FIG. 7C is a plan view when a convex portion is provided, and FIG. 8D is a side view of FIG.

FIG. 22 is a front view showing a conventional lifting tool.

[Explanation of Codes] 1 Deck plate 2, 2 ', 2 "Rib 6 Rod 7 Nut member 9 Deck plate 10 Rib 11 Lifting tool body 11a Horizontal part 11b Vertical part 12 Pins 13, 14 Clamping piece 13a, 14a Horizontal part 13b , 14b Vertical part 18 Spring retainer 19 Spring 21 Lifting tool body 21a Notch 21b Hole 23, 24 Holding piece 23a, 24a Bending part 33, 34 Holding piece 39 Rib 41 Lifting tool body 42 Holding piece 42a Horizontal part 42b Vertical Part 43 Pin 51 Lifting tool main body 52 Lifting metal fitting 53 Holding piece 53a Horizontal part 53b Vertical part 54 pin

[Procedure Amendment 2]

[Document name to be corrected] Drawing

[Correction target item name] All drawings

[Correction method] Change

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FIG.

[Fig. 2]

[Figure 3]

[Figure 4]

[Figure 5]

[Figure 6]

[Figure 7]

FIG. 17

FIG. 18

[Figure 8]

[Figure 9]

[Figure 10]

FIG. 11

[Fig. 12]

[Fig. 13]

FIG. 15

FIG. 14

FIG. 16

FIG. 19

FIG. 21

FIG. 22

FIG. 20

Claims (4)

[Claims] 1. A substantially U-shaped lifting device main body for receiving a fixed rib on a horizontal part, and a horizontal part rotatably supported by a vertical part of the lifting device main body, the horizontal part protruding toward the rib side, and the vertical part. And a pair of self-weight hanging type holding pieces that are always formed along the outside of the lifting body, a nut member non-rotatably attached to the horizontal portion of the lifting body, and a screw of the nut member. And a rod which is screwed from below and pushes up the rib received in the horizontal portion of the lifting tool main body. 2. A substantially U-shaped lifting tool main body for receiving a fixed rib on a horizontal part, and a horizontal part rotatably supported by a vertical part of the lifting tool main body so that the horizontal part projects toward the rib side and the vertical part. A pair of self-weight hanging type holding pieces that are always formed along the outside of the lifting tool body, a nut member non-rotatably attached to the horizontal portion of the lifting tool body, and the lifting tool body. A pressing spring provided with a spring retainer that abuts against the rib received inside,
A suspending tool comprising: a rod that is screwed onto the screw of the nut member from below. 3. A lifting device main body having a horizontal portion for receiving an L-shaped rib on the fixed side, and a horizontal portion of the lifting device main body rotatably supported by the lifting device main body sandwiching the rib. A holding member, a nut member non-rotatably attached to the lifting body, and a rod that is screwed from below onto the screw of the nut member to push up the rib through the holding member. A characteristic lifting tool. 4. A lifting tool main body, which is located below the fixed H-shaped rib and is open at both ends, is provided with a suspending metal fitting that can move in and out at both ends of the lifting tool main body. A self-weight hanging type clamping piece formed such that a horizontal portion projects toward the rib side and a vertical portion always extends along the outside of the hanging metal fitting, and a nut member non-rotatably attached to the horizontal portion of the hanging tool body. And a rod which is screwed from below to the screw of the nut member and pushes up the rib via the lifting tool body.