JP2004269255A - Hoisting tool and take up apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hoisting tool for securing the stable lifting work and a take up apparatus including the hoisting tool. <P>SOLUTION: A pressing member 4 having a hoisting hole 19 and two abut parts 14 is disposed between the support plates 6 disposed opposite to each other, a shaft part 17 of a bolt 15 where a passing hole 20 for passing a link chain 21 is formed is passed through penetrating holes 10a of the support plates 6 and a penetrating hole 10b of the pressing member 4, and a nut 16 is screwed thereon. In the hoisting work for a pipe 2, with the abutting surface 13 of the hoisting tool 1 abutted on the outer peripheral surface of the pipe 2, the link chain 21 is wound, and load fastening is performed by a take up machine such as a chain lever hoist 23. After that, when a hook 22c is locked in the hoisting hole 19 and lifted, the pressing member 4 having the hoisting hole 19 is rocked taking the shaft part 17 as a fulcrum by hoisting force of the hook 22c, and the abutting part 14 corresponding to the rocking direction is abutted on the outer peripheral surface of the pipe 2. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

  The present invention relates to a hanger and a tensioning device, and more particularly, to a hanger that can be suitably used for lifting a tubular structure such as a pipe, and a tensioning device including the hanger.

  Conventionally, in order to lift a pipe, for example, as shown in FIG. 21, a link chain 52 is wound around an outer peripheral surface of a pipe 51, and the wound link chain 52 is tensioned by a tensioner (not shown). A hook 53 is hooked on the tensioned link chain 52 to lift the pipe 51.

Also, for example, Japanese Patent Application Laid-Open No. 8-254285 (Patent Document 1) describes that a wire is wound around the center of a tube and the wire is hung on a hanging hook of a chain block in the same manner as described above. Have been.
JP-A-8-254285

  However, as described above, when the hook 53 is hooked and hung on the link chain 52 wound around the pipe 51, as shown in FIG. There is a problem that a substantially triangular gap is generated between the pipe and the pipe 51, and a stable lifting operation cannot be secured.

  In particular, when the pipe 51 is lifted in a state where it is supported in the horizontal direction (horizontal suspension), stable lifting may be ensured even when the above-described gap occurs, but a state in which the pipe 51 is supported in the vertical direction. In the case of lifting (vertical suspension), if there is such a gap, the pipe 51 may fall off from the link chain 52.

  The present invention has been made in order to solve such a problem, and an object of the present invention is to provide a hanging tool and a tensioning device including the hanging tool, which can secure a stable lifting operation. It is in.

  In order to achieve the above object, the invention according to claim 1 is a hanging tool, comprising two support members that are arranged facing each other at a predetermined interval, and a hanging hole. A pressing member, which is swingably supported between the members, and presses the suspended body, and a flexible cord-like member that passes through the two supporting members and the pressing member and is wound around the suspended body. And an insertion hole for making the hole.

  In order to lift a suspended body using such a suspending tool, the flexible string-shaped member is wound around the suspended body in a state where the flexible cord-like member is inserted into the insertion hole of the suspending tool. The lifting device is locked in the lifting hole of the lifting device, and the suspended object is lifted by the lifting device via the lifting device.

  Then, in such a lifting operation, when the lifting device is locked by hanging the lifting device in the lifting hole of the lifting device, the pressing member having the lifting hole is swung by the lifting force of the lifting device, and the flexible cord member is formed. The pressing member presses the to-be-suspended body at the portion where the is inserted through the hanging device. Thereby, it is possible to prevent a substantially triangular gap from being formed between the suspended body and the flexible cord-like member, and it is possible to secure a stable lifting operation.

  According to a second aspect of the present invention, in the first aspect of the invention, the insertion hole is formed by penetrating the two support members and the pressing member at a swing fulcrum of the pressing member. It is characterized by having.

  According to such a configuration, since the flexible cord-shaped member is inserted into the suspending tool at the pivot of the pressing member, the pressing member can be pressed against the suspended body in a balanced manner. Therefore, a more stable lifting operation can be ensured.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, the pressing member has a contact portion that contacts the suspended body at a predetermined interval in a swing direction of the pressing member. It is characterized in that a plurality of them are formed at intervals.

  According to such a configuration, in the lifting operation, when the pressing member is rocked by the lifting force of the lifting device locked in the lifting hole of the lifting device, each contact portion corresponding to the rocking direction is hung. Can be brought into contact with the body. Therefore, reliable pressing by the pressing member can be secured, and a more stable lifting operation can be secured.

  The invention according to claim 4 is the invention according to any one of claims 1 to 3, wherein the two support members extend in a direction opposite to a direction in which the support members face each other, and A contact member that is in contact with the contact member is provided.

  According to such a configuration, in the lifting operation, in addition to the pressing of the pressing member, the contact members can be brought into contact on both sides of the pressing member. Therefore, a more stable contact of the hanging tool with the suspended body can be secured, and a more stable lifting operation can be secured.

According to a fifth aspect of the present invention, in the first aspect of the present invention, the two support members and the pressing member have a thickness at a swing fulcrum of the pressing member. Through holes penetrating in the direction are formed respectively,
It is characterized in that an insertion member having the insertion hole is inserted into these through holes.

  According to such a configuration, the through-hole penetrating the two support members and the pressing member can be reliably formed by simple assembly. Further, the pressing member can be reliably swung about the insertion member as a fulcrum.

  An invention according to claim 6 is a tensioning device, wherein the flexible cord-shaped member wound around the suspended body, a tensioner for tensioning the flexible cord-shaped member, A hanging device according to any one of claims 1 to 5, wherein a flexible cord-like member is inserted.

  According to such a configuration, the flexible cord-shaped member is wound around the suspended body in a state where the pressing member of the hanging tool is in contact with the suspended body, and the flexible cord-like member is wound by the tensioner. If it is tensed, then, when the lifting device is locked in the lifting hole of the lifting device and the suspended body is lifted, the pressing member having the lifting hole swings by the lifting force of the lifting device, and the flexible string is formed. The pressing member presses the suspended body at a portion where the member is inserted through the hanging member. Thereby, it is possible to prevent a substantially triangular gap from being formed between the suspended body and the flexible cord-like member, and it is possible to secure a stable lifting operation.

  As described above, according to the first aspect of the present invention, it is possible to prevent a substantially triangular gap from being formed between the suspended body and the flexible cord-like member, and to secure a stable lifting operation. be able to.

  According to the second aspect of the present invention, a more stable lifting operation can be ensured.

  According to the third aspect of the present invention, it is possible to ensure reliable pressing by the pressing member, and to further secure a stable lifting operation.

  According to the invention as set forth in claim 4, more stable contact of the hanging tool with the suspended body can be ensured, and a more stable lifting operation can be ensured.

  According to the fifth aspect of the present invention, the insertion hole penetrating the two support members and the pressing member can be reliably formed by simple assembly. Further, the pressing member can be reliably swung about the insertion member as a fulcrum.

  According to the sixth aspect of the invention, it is possible to prevent a substantially triangular gap from being formed between the suspended body and the flexible cord-like member, and it is possible to secure a stable lifting operation.

  FIG. 1 is a perspective view showing a first embodiment of the hanging device of the present invention, FIG. 2 is a plan view of the hanging device, FIG. 3 is a side view of the hanging device, and FIG. FIG. 5 is a cross-sectional view taken along line AA of FIG. 2.

  In FIG. 1, a hanging device 1 is used for lifting a round bar or a tubular structural member of various materials as a member to be hung, for example, a pipe 2 (see FIGS. 7 to 13), and is made of a metal or the like. It has a portion 3, a pressing member 4 and an insertion member 5.

  The main body 3 is composed of a support plate 6, a front plate 7, a rear plate 8 as two support members, and a contact plate 9 as a contact member.

  Each support plate 6 has a plate shape, and is arranged to face each other with a pressing member 4 described later interposed therebetween. As shown in FIGS. 4 and 5, each support plate 6 is provided with a substantially circular through hole 10a in a side view that penetrates the thickness direction at a substantially central position in a side view. The bolt 15 of the insertion member 5 described later can be inserted. The front plate 7 has a substantially rectangular plate shape, and is joined so as to connect the support plates 6 in the longitudinal direction of the support plates 6. The rear plate 8 has a substantially rectangular plate shape, and is joined to one end surface of each support plate 6 in the longitudinal direction so as to connect one end of each support plate 6. As a result, a receiving portion 11 having a substantially rectangular shape in plan view surrounded by the support plates 6, the front plate 7 and the rear plate 8 is formed, and the pressing member 4 described later is received in the receiving portion 11.

  Further, the other end portion extending from the midway portion where the front plate 7 is joined in the longitudinal direction of each support plate 6 to the other end surface has a substantially triangular trapezoidal shape tapering toward the other end surface. It is formed as a support part 12 for supporting the pipe 2 when the pipe 2 is lifted by the tool 1.

  In addition, each support plate 6 has one end surface (lower surface) in a height direction (hereinafter, referred to as a height direction) orthogonal to the thickness direction and the longitudinal direction, as shown in FIG. Is formed as a contact surface 13 which is a substantially linear flat surface. In addition, this contact surface 13 contacts with the outer peripheral surface along the length direction of the piping 2 as mentioned later.

  As shown in FIG. 1, the contact plate 9 has a substantially rectangular plate shape, and in an intermediate portion where the front plate 7 of each support plate 6 is joined, a direction opposite to a direction in which the support plates 6 face each other (each support plate 6). 6 on the opposite side of the front plate 7) in a direction substantially orthogonal to each support plate 6, and is formed in a substantially triangular trapezoidal shape which becomes narrower toward its free end. Further, one end surfaces (lower surfaces) 9a and 9b in the height direction of the respective contact plates 9 are, as shown in FIGS. 3, 5 and 7, from a base end joined to each support plate 6 to a free end. As viewed from the side, the support plate 6 is formed in an inclined shape (in FIG. 3 and FIG. 5, projects downward) in a side view. Thereby, as will be described later, when the pipe 2 is lifted by the hoisting tool 1, the abutting plate 9 is placed on one end surfaces 9a and 9b in the height direction along the outer peripheral surface of the pipe 2 along the circumferential direction of the pipe 2. Can be reliably contacted.

  As shown in FIGS. 1 and 5, the pressing member 4 is formed in a thick plate shape, and a pressing portion 4 a accommodated in the receiving portion 11 and a hanging portion 4 b exposed from the receiving portion 11 are integrally formed. ing. The portion where the pressing portion 4a and the hanging portion 4b are continuous is formed in a constricted shape.

  The pressing portion 4a has a through hole 10b penetrating in the thickness direction at a substantially central portion in a side view, and a plurality of (two) contact portions 14 at an end opposite to a side continuous with the hanging portion 4b. Is formed.

  The through-hole 10b is formed in a circular shape in a side view having substantially the same diameter as the through-hole 10a formed in each support plate 6, and allows a bolt 15 of an insertion member 5 described later to be inserted.

  Each of the contact portions 14 is formed as a protrusion formed by bending a peripheral end of the opposite side of the hanging portion 4b with respect to the through hole 10b in a waveform along the swinging direction of the pressing member 4. Are formed at a predetermined interval from each other at both ends in the swinging direction.

  The insertion member 5 includes a bolt 15 and a nut 16 as shown in FIGS.

  The bolt 15 has a shaft portion 17 and a head portion 18 integrally formed. The head 18 has a hexagonal shape, and is provided in a flange shape on the one end side of the shaft 17 with respect to the shaft 17. On the other end side of the shaft portion 17, a screw thread 17a into which the nut 16 is screwed is formed.

  The bolt 15 has an insertion hole 20 that penetrates the head 18 and the shaft 17 in the axial direction. A link chain 21 to be described later can be inserted into the insertion hole 20.

  The head 18 of the bolt 15 and the nut 16 also serve as a reinforcing member for the entrance and exit of the link chain 21 in the insertion member 5 in a lifting operation described later. Note that a caulking member having a head is used in place of the nut 16 and the head of the caulking member is caulked to the bolt 15 to prevent the bolt 15 from coming off and to reinforce the entrance and exit of the link chain 21 of the insertion member 5. It may be performed.

  As shown in FIGS. 1 and 4, the hanging device 1 receives the pressing portions 4 a of the pressing members 4 in the receiving portions 11 of the main body portion 3, and penetrates the support plates 6 that are arranged to face each other. With the hole 10a and the through hole 10b of the pressing portion 4a aligned in the direction of penetration of the shaft 17 of the bolt 15, the shaft 17 of the bolt 15 is inserted into each of the through holes 10a and 10b. The screw 16 is screwed with the nut 16 so that the pressing member 4 is swingably supported between the support plates 6 about the shaft 17 as a fulcrum.

  Thereby, as shown in FIG. 6, the pressing member 4 is swung about the shaft 17 along the longitudinal direction of each support plate 6, and the hanging portion 4 b is swung to one side toward the rear plate 8. Then, the contact portion 14 on one side close to the rear plate 8 is exposed so as to protrude from the contact surface 13 in a side view, and the hanging portion 4b is swung to the other side toward the front plate 7. Then, the contact portion 14 on the other side close to the front plate 7 is exposed so as to protrude from the contact surface 13 in a side view. Thereby, each contact portion 14 is selectively protruded from the contact surface 13 as the pressing member 4 swings. In the hanging device 1, in the lifting operation of the pipe 2, which will be described later, the pressing member 4 has a larger contact area between the contact part 14 on the other side and the outer peripheral surface of the pipe 2 than the contact part 14 on one side. It is formed so that it becomes.

  Then, in order to lift a cylindrical member such as the pipe 2 by using such a hanging tool 1, for example, as shown in FIG. 7, first, an upper hook 22b, a lower hook 22a, and a flexible string member A chain lever hoist 23 as a tensioner having a link chain 21 as a preparatory member is prepared, and the hanging tool 1 is inserted through the link chain 21 of the chain lever hoist 23. In order to insert the hanging tool 1 into the link chain 21 of the chain lever hoist 23, for example, the no-load side link chain 21 is removed from the chain lever hoist 23, and the no-load side link chain 21 is inserted into the insertion hole of the hanging tool 1. After inserting the link chain 21 on the no-load side, the link chain 21 on the no-load side may be attached to the chain lever hoist 23 again. Thereby, a tensioning device for winding and lifting the link chain 21 around the pipe 2 is prepared.

  Then, with the contact surface 13 of each support plate 6 of the hanging tool 1 abutting on the outer peripheral surface of the pipe 3, the link chain 21 is wound around the outer peripheral surface of the pipe 2, and the lower hook 22a is attached to the upper hook 22b. After linking or linking one end and the other end of the link chain 21 using a dedicated connection fitting (not shown), the lever 24 of the chain lever hoist 23 is rotated in the tension direction. Then, the link chain 21 is tensioned and the pipe 2 is closed.

  By being packed in this manner, the contact surface 13 of the hanging member 1 is brought into contact with the outer peripheral surface of the pipe 2 along the length direction of the pipe 2 and the height of each contact plate 9 in the height direction. On the other hand, since the end surfaces 9a and 9b abut on the outer peripheral surface of the pipe 2 along the peripheral direction of the pipe 2, the hanging member 1 is securely fixed to the outer peripheral surface of the pipe 2.

  Then, a hook 22c as a lifting device attached to a crane (not shown) or the like is locked in the hanging hole 19 of the hanging tool 1, and the pipe 2 is lifted through the hanging tool 1 by the hook 22c or the like.

  Then, the pressing member 4 having the suspension hole 19 swings by the lifting force of the hook 22c, and the contact portion 14 corresponding to the swing direction is placed on the outer peripheral surface of the pipe 2 as shown in FIG. The contact is made with a pressing force corresponding to the load of the tightening force or the lifting force. That is, for example, in FIG. 6, when the lifting tool 1 is lifted from the rear plate 8 side, the lifting force swings the hanging portion 4 b to one side toward the rear plate 8, and the one side close to the rear plate 8 abuts. The portion 14 projects from the contact surface 13 and contacts the outer peripheral surface of the pipe 2. When the lifting tool 1 is lifted from the front plate 7 side, the lifting force swings the hanging portion 4 b to one side toward the front plate 7, and the contact portion 14 on the other side close to the front plate 7 is brought into contact with the contact surface. 13 and comes into contact with the outer peripheral surface of the pipe 2. Thereby, the pipe 2 can be reliably pressed by the pressing member 4 in the portion where the link chain 21 is inserted into the hanging tool 1. As a result, it is possible to prevent a substantially triangular gap from being formed between the pipe 2 and the link chain 21, and it is possible to secure a stable lifting operation.

  Also, in the hanging device 1, the shaft portion 17 of the bolt 15 is inserted into the through hole 10 a of each support plate 6 and the through hole 10 b of the pressing member 4, so that the through hole penetrates each support plate 6 and the pressing member 4. The holes 10a and 10b are reliably formed by simple assembly, and the pressing member 4 is reliably swung about the shaft 17 as a fulcrum.

  Further, in the hanging device 1, since the link chain 21 is inserted into the insertion hole of the bolt 15 at the pivot of the pressing member 4, the pressing member 4 can be pressed against the pipe 2 with good balance. Therefore, a more stable lifting operation can be ensured.

  Further, since the abutment 1 is provided with the abutment plate 9, in the lifting operation, in addition to the pressing of the pressing member 4, the abutting plate 9 is provided on both sides in the thickness direction of the pressing member 4. 2 can be brought into contact along the outer peripheral surface. That is, as shown in FIG. 8, even if the pipes 2 have different diameters, the one end surfaces 9 a and 9 b in the height direction of the contact plate 9 are free from the base end portion joined to each support plate 6. Since it is formed in an inclined shape that gradually protrudes from the contact surface 13 of each support plate 6 in a side view toward the end, the height of the contact surface 13 and the contact plate 9 of the hanging member 1 in the height direction is increased. On the other hand, the end surfaces 9a and 9b can be reliably brought into contact with the outer peripheral surface of the pipe 2. For this reason, more stable contact of the hanging tool 1 with the pipe 2 can be ensured, and a more stable lifting operation can be ensured.

  Then, in order to actually lift the pipe 2, for example, as shown in FIG. 9, first, at each position (longitudinal end of the pipe 2) at a predetermined interval in the longitudinal direction of the pipe 2, The contact surface 13 is brought into contact with the outer peripheral surface of the pipe 2, and the link chain 21 inserted into the insertion hole 20 of each hanging tool 1 is wound around the outer circumference of the pipe 2 as described above, and then the chain lever is turned on. The load is fastened by the hoist 23. Next, hooks 22c provided on the other side of the chain 26 provided with the coupling 25 on one side are hooked into the hanging holes 19 of the hanging tool 1, respectively, so that the coupling 25 provided on one side of the chain 26 is provided. Is hooked on the hook 22 of a crane (not shown) via the master link 27, the pipe 2 can be lifted while being supported horizontally (horizontally suspended).

  In the horizontal suspension shown in FIG. 9, the pressing member 4 swings to one side as shown in FIG. 6, so that the one-side contact portion 14 protrudes from the contact surface 13 and the Press the outer peripheral surface.

  Further, in this hanging tool 1, since the outer peripheral surface of the pipe 2 can be pressed by the contact portion 14 as described above, for example, as shown in FIG. At one end in the longitudinal direction, the contact surface 13 of the hanging device 1 is brought into contact with the outer peripheral surface of the pipe 2, and the link chain 21 inserted into the insertion hole 20 is wound around the outer peripheral surface of the pipe 2 as described above. The pipe 2 can be turned and tightened by the chain lever hoist 23, and then hooked by the hook 22 c in the hanging hole 19 of the hanging tool 1, so that the pipe 2 can be lifted in a substantially vertical direction (vertical hanging).

  In such a vertical suspension shown in FIG. 10, the pressing member 4 swings to the other side as shown in FIG. 6, so that the contact portion 14 on the other side projects from the contact surface 13 and Press the outer peripheral surface. More specifically, as shown in FIG. 11, in the vertical suspension shown in FIG. 10, the hanging tool 1 is arranged on the outer peripheral surface of the pipe 2 so that the support portion 12 is on the upper side, and the hanging portion 4 b is , The upper contact portion 14 having a larger contact area presses the outer peripheral surface of the pipe 2 and is applied above the contact position of the upper contact portion 14 generated by the pressing force. The load is reliably received by the support portion 12 and the contact plate 9. Therefore, in the hanging device 1, by arranging the supporting unit 12 so as to face the direction in which the lifting force is applied (the direction in which the pressing member 4 swings), the hanging device 1 can more reliably contact the pipe 2. Contact can be secured. As a result, for example, even in such a vertical suspension, a stable lifting operation can be ensured via the suspending tool 1.

  Note that FIG. 10 shows a single hanging mode in which the pipe 2 is lifted by using one hanging tool 1, but as shown in FIG. In the above, the two hanging tools 1 may be lifted in opposition to each other. In addition, such vertical suspension is not limited to the above-described embodiment, and three fishing using three suspenders 1 or, as shown in FIG. The number and the number of chains 26 can be increased by using an appropriate number of hanging members 1 depending on the purpose and application, such as four hanging members each using the four hanging members 1, and more stable. Lifting work can be ensured.

  14 is a perspective view of the hanging device 1 as a second embodiment of the present invention, FIG. 15 is a plan view of the hanging device 1 shown in FIG. 14, and FIG. 16 is a side view of the hanging device 1 shown in FIG. 17, FIG. 17 is a cross-sectional plan view of the hanger shown in FIG. 16, taken along the line CC, FIG. 18 is a side cross-sectional view showing the swinging state of the pressing member 4 of the hanger, and FIG. FIG. 20 is a front view for explaining a use mode (a mode for lifting pipes) of the hanging tool 1, and FIG. 20 is a perspective view for explaining a usage mode (a mode for lifting the pipe (horizontal mode)) shown in FIG. 14. FIG.

  14 to 20, the same members as those in FIGS. 1 to 13 are denoted by the same reference numerals, and description thereof will be omitted.

  As shown in FIGS. 14 to 17, in the hanging device 1, in addition to the contact plate 9 and the support portion 12 formed on the other end side of each support plate 6, the contact plate is also provided on one end side. 9 and a support portion 12 are provided.

  Specifically, as shown in FIGS. 14 and 17, a front plate 7 is provided instead of the rear plate 8 (see FIG. 1). That is, the front plates 7 are arranged opposite to each other at two positions in the longitudinal direction of each support plate 6 with the pressing portion 4a of the pressing member 4 interposed therebetween.

  As a result, a receiving portion 11 having a substantially rectangular shape in a plan view surrounded by the support plates 6 and the front plates 7 is formed.

  Further, each of the support portions 12 on the one end side is one end extending from one half of the one end side of each support plate 6 to one end surface of the two intermediate portions to which the front plate 7 of each support plate 6 is joined. In the portion, it is formed in a substantially triangular trapezoidal shape tapering toward one end surface.

  Further, as shown in FIG. 14, each contact plate 9 on one end side has a substantially rectangular plate shape, and one end portion of two intermediate portions where the front plate 7 of each support plate 6 is joined. In the middle part on the side, it extends in a direction substantially orthogonal to each support plate 6 in a direction opposite to the direction in which each support plate 6 faces (the opposite side of the front plate 7 in each support plate 6), and as it goes toward its free end. It is formed in a substantially triangular trapezoidal shape having a small width. Further, one end surfaces (lower surfaces) 9a and 9b in the height direction of the respective contact plates 9 on the one end side are connected to the respective support plates 6 on the one end side as shown in FIGS. From the base end to be joined to the free end, in a side view, the slope gradually protrudes from the contact surface 13 of each support plate 6 (projects downward in FIGS. 16 and 18). Is formed.

  In the second embodiment, the contact plate 9 and the support portion 12 are provided on both sides of the pressing portion 4 a of the pressing member 4 in the longitudinal direction of the support plate 6, and are further provided substantially around the axis of the insertion hole 10. They are arranged symmetrically. Accordingly, even when the pressing member 4 swings in any of the swinging directions, the load generated by the pressing member 4 pressing the pipe 2 can be applied to the corresponding one-side and the other-side support portions 12 and the contact plate 9. Can be surely received.

  That is, for example, when the hanging tool 1 is hoisted from one end of the support plate 6 by the hook 22c (see FIG. 19), as shown in FIG. 18, the contact portion 14 on one side projects from the contact surface 13 and contacts the outer peripheral surface of the pipe 2. At this time, a load is applied to the suspending tool 1 on one side from a contact position between the one-side contact portion 14 and the pipe 2 by a pressing force of the one-side contact portion 14 pressing the outer peripheral surface of the pipe 2. However, this load is reliably received by the support portion 12 and the contact plate 9 on one side.

  When the lifting tool 1 is lifted from the other end of the support plate 6, the lifting force causes the lifting portion 4b to swing to the other side (the left side in FIG. 18), and the contact portion 14 on the other side to abut. It protrudes from the contact surface 13 and contacts the outer peripheral surface of the pipe 2. At this time, a load is applied to the suspending tool 1 on the other side from the contact position between the contact portion 14 on the other side and the pipe 2 by a pressing force by which the contact portion 14 on the other side presses the outer peripheral surface of the pipe 2. However, this load is reliably received by the support portion 12 and the contact plate 9 on the other side. As a result, more reliable contact of the hanging tool 1 with the pipe 2 can be ensured.

  Further, as shown in FIG. 20, the manner in which the pipe 2 is hoisted (horizontally suspended) while being supported in the horizontal direction is the same as that shown in FIG. The contact plate 9 and the support portion 12 are arranged on both sides of the pressing member 4 in the longitudinal direction of each support plate 6. Thereby, the contact area of the hanging device 1 with the pipe 2 can be increased, and the balance of the load of the hanging device 1 in the longitudinal direction of the support plate 6 can be more uniform. As a result, a more stable contact of the suspending tool 1 with the pipe 2 can be secured, and a more stable lifting operation of the pipe 2 can be secured.

  Although the embodiment of the hanging device of the present invention has been described above, the hanging device of the present invention may be configured by, for example, connecting the main body 3 of the hanging device 1 to each of the support members 6, the front plate 7, and the rear. The plate 8 and the contact plate 9 may be formed by welding or may be formed integrally. Further, the hanging device of the present invention can be used in embodiments other than the above-described embodiments. For example, in the above embodiments, the pressing member 4 is formed with two contact portions 14 at both ends in the swinging direction, but three or more contact portions 14 may be formed as appropriate. Further, in each of the above embodiments, the link chain 21 is used as the flexible cord-like member, but a wire may be used. Further, in each of the above embodiments, the chain lever hoist 23 is used as the tensioner, but a tensioner using a clamp, a wire, or a belt may be used.

  Further, in each of the above embodiments, the pipe 2 is shown as the suspended body of the hanging device of the present invention, but the invention is not limited to this, and any pipe that can be wound with a flexible cord-like member may be used. There is no particular limitation, and other tubular structures, and further, angular structures and the like may be used.

  Further, in each of the above embodiments, the lifting operation using the crane is exemplified. However, the lifting operation using the lifting device and the tensioning device of the present invention is not limited to each of the above embodiments. The present invention can also be applied to lifting work such as vertical hanging, horizontal hanging, oblique hanging, and horizontal pulling used.

It is a perspective view showing a 1st embodiment of a hanger of the present invention. It is a top view of the hanging tool shown in FIG. It is a side view of the hanger shown in FIG. It is a plane sectional view in the BB line of the hanger shown in FIG. FIG. 3 is a side sectional view taken along line AA of the hanging tool shown in FIG. 2. It is a sectional side view showing the rocking state of the pressing member of the hanging tool. It is a front view for demonstrating the use aspect (the aspect which lifts a pipe) of the hanging tool shown in FIG. It is a front view for demonstrating the use mode (contact state of the contact plate) of the hanging tool shown in FIG. FIG. 2 is a perspective view for describing a use mode (a mode of lifting a pipe (horizontal suspension)) of the hanging tool illustrated in FIG. 1. FIG. 2 is a perspective view for explaining a use mode (a mode of lifting a pipe (vertical (single) suspension)) of the hanging tool illustrated in FIG. 1. It is a principal part explanatory view of a use aspect of the hanging tool shown in FIG. FIG. 2 is a perspective view for explaining a use mode (a mode of lifting pipes (vertical (two) mode)) of the hanging tool illustrated in FIG. 1. FIG. 2 is a perspective view for explaining a use mode (a mode of lifting pipes (vertical (four) suspension)) of the hanging tool illustrated in FIG. 1. It is a perspective view of the hanging implement as a 2nd embodiment of the present invention. It is a top view of the hanging tool shown in FIG. It is a side view of the hanging tool shown in FIG. FIG. 17 is a cross-sectional plan view taken along line CC of the hanging tool shown in FIG. 16. It is a sectional side view showing the rocking state of the pressing member of the hanging tool. FIG. 15 is a front view for explaining a use mode (a mode of lifting a pipe) of the hanging tool shown in FIG. 14. FIG. 15 is a perspective view for describing a use mode (a mode of lifting a pipe (horizontal suspension)) of the hanging tool illustrated in FIG. 14. It is a principal part enlarged view which shows the conventional pipe lifting operation.

Explanation of reference numerals

DESCRIPTION OF SYMBOLS 1 Hanging tool 2 Piping 4 Pressing member 5 Insertion member 6 Support plate 8 Contact plate 10a Through hole 14 Contact portion 19 Hanging hole 20 Insertion hole 21 Link chain 23 Chain lever hoist

Claims (6)

Two support members that are arranged facing each other at a predetermined interval,
A pressing member having a hanging hole, supported swingably between the two supporting members, and pressing the suspended body;
A hanging tool, comprising: an insertion hole that penetrates the two support members and the pressing member, and through which a flexible cord-shaped member wound around the suspended body is inserted. 2. The hanging device according to claim 1, wherein the insertion hole is formed by penetrating the two support members and the pressing member at a pivot point of the pressing member. 3. The suspension according to claim 1, wherein the pressing member has a plurality of contact portions that contact the suspended body at predetermined intervals in a swing direction of the pressing member. 4. Utensils. The two support members are provided with a contact member that extends in a direction opposite to a direction in which the support members face each other and is in contact with the suspended body. The hanging device according to any one of the above. In the two support members and the pressing member, at the swing fulcrum of the pressing member, there are formed through holes penetrating these in the thickness direction, respectively.
The hanging member according to any one of claims 1 to 4, wherein an insertion member having the insertion hole is inserted into the through holes. 6. A flexible string member wound around a suspended body, a tensioner for tensioning the flexible string member, and the flexible string member is inserted. A tensioning device comprising the hanging device according to any one of the above.

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