JP6647482B1 - Lifting aid - Google Patents

Abstract

An object of the present invention is to provide a lifting aid that is less likely to damage a rope-like member, that is less likely to drop or drop in a load, and that has good working efficiency. A luggage is lifted by a rope-like member having a stopper at a tip end of a rope-like body. It has a tube material 11 and an engagement portion 12. The pipe material 11 has a through hole through which the rope-shaped main body 21 penetrates. The through-hole is curved so that the rope-shaped main body 21 can be slid and stopped at an arbitrary position on the rope-shaped main body 21. The engaging portion 12 is detachably engaged with the stopper 22. When the engaging portion 12 is engaged with the stopper 22, the rope-shaped main body 21 crosses the rope-shaped main body 21 inside the through hole. The engaging portion 12 is provided on the tube 11 so as to stop the backward movement of the stopper 22. [Selection diagram] Fig. 1

Description

  The present invention relates to a lifting aid that can be used to move a tree or other luggage by hanging it with a rope-like member.

Conventionally, as shown in FIG. 5A, a roller 1 and a hook 2 are provided, a wire rope 3 guided by the roller 1 is wound around a load 4, and an end of the wire rope 3 is engaged with the hook 2. A choker hook for squeezing and hanging a load 4 is known.
As shown in FIG. 5 (B), a wire rope 3 having a C-shaped bracket (C-can) 5 attached to the end is wrapped around the luggage 4, and the C-shaped bracket 5 is hung on the wire rope 3 to load the luggage 4. The thing which squeezes and suspends is known.
In addition, there is disclosed a device in which a wire rope is inserted through a through-hole bent in a snake shape, and the wire rope is fastened with a fastening jig (for example, see Patent Document 1).

Japanese Utility Model Publication No. 60-26057

  However, in the choker hook shown in FIG. 5A, the C-shaped fitting shown in FIG. 5B, and the wire rope loosening prevention jig described in Patent Document 1, a wire rope and a roller, a C-shaped fitting or a fastening jig are used. Since a load is applied to the wire rope at the point of contact with the wire rope, the wire rope is bent at the point of contact and is liable to be damaged. In addition, there is a problem in that a gap is easily formed in the upper portion near the choker hook, the C-shaped bracket or the fastening jig, so that when the cargo deflects, the luggage not fastened by the wire rope may fall off. Also, as shown in FIG. 6, during the slinging operation, the slinging wire rope 6 tends to lean toward the center of the luggage 7 such as a steel material. There was a problem that the work efficiency was poor.

  The present invention has been made in view of such a problem, and it is an object of the present invention to provide a lifting aid that is hard to damage a rope-like member, hard to drop and drop, and has good working efficiency. I do.

In order to achieve the above object, a lifting aid according to the present invention is a lifting aid for lifting a load with a rope-shaped member having a stopper at a distal end portion of a rope-shaped body, and includes a pipe member and an engagement portion. The pipe material has a through-hole through which the rope-shaped body penetrates, and the through-hole is slidable on the rope-shaped body so as to be able to stop at an arbitrary position on the rope-shaped body; The pipe member is detachably engaged with the stopper, and when engaged with the stopper, intersects the rope-shaped body with the rope-shaped body inside the through-hole and stops the rearward movement of the stopper. The stopper has a larger diameter than the rope-shaped main body, the engaging portion is cylindrical and has therein a large-diameter hole and a small-diameter hole communicating with each other, and the large-diameter hole is Insert the rear part of the stopper The small-diameter hole has a diameter smaller than the diameter of the stopper, into which the rope-shaped main body can be inserted, and the engaging portion allows the rope-shaped main body to be inserted into the large-diameter hole and the small-diameter hole from the side. It is characterized in that an insertion groove which can be inserted into the hole and has a width smaller than the diameter of the stopper is provided on the side .

  In the lifting aid according to the present invention, the rope-shaped main body is previously passed through the through-hole of the pipe material. When lifting the load, the rope-shaped main body between the stopper and the tube is wound around the load and tightened. Next, the stopper is engaged with the engaging portion. Lift the luggage by hanging the rope-shaped body on the opposite side of the stopper and the tube.

In the lifting aid according to the present invention, since the through-hole is curved, a concentrated load is hardly applied to one point of the rope-shaped main body, and the rope-shaped main body is not easily damaged. When the stopper is engaged with the engaging portion, the rope-shaped body intersects the rope-shaped body inside the through-hole, so that a gap above the rope-shaped member that tightens the load can be reduced, and the load can be securely held. Can be tightened. For this reason, when the load swings, the luggage is less likely to fall out, and the rope-shaped member is less likely to lean toward the center of the luggage during sling work, so that safety and work efficiency are good.
Examples of the curved shape of the through hole include an arc shape, a parabolic shape, an S-shape, and a spiral shape, but other shapes may be used. In addition, the pipe material is not limited to the pipe shape but may be a block shape or another shape as long as it has a through hole.

In the lifting aid according to the present invention, the stopper has a diameter larger than that of the rope-shaped main body, and the engagement portion has a large-diameter hole and a small-diameter hole which are cylindrical and communicate with each other, and The diameter hole has an insertion hole through which the rear part of the stopper can be inserted, the small diameter hole has a diameter smaller than the diameter of the stopper, into which the rope-shaped main body can be inserted, and the engagement portion has the rope-shaped main body. wherein the side surface can be inserted into the large diameter hole and the small diameter hole that having a insertion groove of a width smaller than the diameter of said stopper on the side.
For this reason , when the stopper is engaged with the engagement portion, the rope-shaped main body is inserted into the insertion groove from the side surface and positioned in the large-diameter hole and the small-diameter hole. Next, by inserting the rear portion of the stopper into the insertion opening, the stopper and the engaging portion can be easily engaged.

In the lifting aid according to the present invention, it is preferable that the through-hole has an upper port and a lower port, and the insertion port is positioned in front of the lower port.
In this case, when the stopper is engaged with the engaging portion, the rope-shaped body intersects with the rope-shaped body inside the through hole, and the gap at the upper portion of the rope-shaped body to which the load is tightened can be made particularly small.

The lifting aid according to the present invention has a guide tube portion, the guide tube portion is provided in the tube with a guide hole in which the rope-shaped body can be inserted, and the guide tube portion is provided with the rope. It is preferable that the side surface of the main body has a guide groove hole that can be inserted into the guide hole from the side surface, and the guide hole extends forward of the small-diameter hole.
In this case, the rope-shaped body is inserted into the guide groove from the side surface and positioned in the guide hole, thereby preventing a load concentrated on one point of the rope-shaped body at the contact point with the engaging portion, and Can be hardly damaged.

In the lifting aid according to the present invention, the pipe material has a pipe material groove having a width smaller than the diameter of the stopper at a side portion, and the rope-shaped main body can be inserted into the through hole from a side surface, and straddles the pipe material groove. It is preferable that a holding member attached to the pipe material to hold the rope-shaped main body inside the through hole is provided.
In this case, the rope-shaped main body is inserted into the tube material slot from the side and positioned in the through hole. If the holding member is attached to the tube so as to straddle the tube hole, the rope-shaped main body can be held inside the through hole. Therefore, the lifting aid according to the present invention can be easily attached to an existing rope-shaped member.

  In the present invention, examples of the rope-shaped member include a fiber rope, a chain, a belt, a string, a band, and the like, in addition to a wire rope, and a wire rope is particularly preferable. The tube, the engaging portion and the guide cylinder are preferably made of rigid metal or ceramic, but may be made of other materials.

  ADVANTAGE OF THE INVENTION According to this invention, it is hard to damage a rope-shaped member, it is hard to fall and drop a luggage, and it can provide the lifting assistance tool with favorable work efficiency.

It is a front view showing the state where it attached to the rope-shaped member of the lifting aid of an embodiment of the invention. FIG. 1A is a front view of the lifting aid attached to a rope-shaped member, FIG. 1B is a right side view, FIG. 1C is a front view, FIG. E) It is a side view of the front-end | tip part of a rope-shaped member. It is a longitudinal cross-sectional view of the lifting aid shown in FIG. It is (A) front view, (B) right side view, and (C) rear view which show the lifting aid of the modification of this invention. It is explanatory drawing which shows the state which tightens | hangs a luggage with a wire rope using each of (A) choker hook, (B) snap ring, (C) lifting aid of embodiment of this invention. It is explanatory drawing which shows the state which lifts luggage with the sling wire rope which used the choker hook.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 3 show a lifting aid 10 according to an embodiment of the present invention.
The lifting aid 10 is a device for lifting a load with the rope-shaped member 20. As shown in FIG. 1, the rope-shaped member 20 has a stopper 22 at the tip of a rope-shaped main body 21.

  As shown in FIG. 2D, the stopper 22 has a stopper body 22a, a sleeve 22b, a cotter 22c, and a lock screw 22d. The stopper 22 has a larger diameter than the rope-shaped main body 21. The stopper main body 22a is cylindrical and can penetrate the rope-shaped main body 21 therein. The stopper body 22a has a female thread portion 22e on the inner circumference at the distal end side, and has a housing portion at an intermediate portion. The sleeve 22b is a close contact material made of lead, a synthetic resin, or the like, and has a cylindrical shape. The cotter 22c is an adhesive material made of lead, a synthetic resin, or the like, and has a wedge shape. The lock screw 22d has a male screw part 22f screwed with the female screw part 22e.

  The stopper 22 is attached to the tip of the rope-shaped main body 21 in the following manner. First, the rope-shaped main body 21 is passed through the stopper main body 22a and the sleeve 22b, and the tip of the rope-shaped main body 21 is loosened. A lock screw 22d is fixed to the sleeve 22b via the loosened rope-shaped main body 21 and the cotter 22c. The sleeve 22b is inserted into the stopper main body 22a, the external thread 22f of the lock screw 22d is screwed with the female thread 22e of the stopper main body 22a, and the sleeve 22b is positioned in the accommodation section. In this way, the stopper 22 can be fixed to the tip of the rope-shaped main body 21. However, as shown in FIG. Good.

As shown in FIG. 2, the lifting aid 10 has a tube 11, an engagement portion 12, and a guide tube 13.
The tube material 11 is gently curved in an arc shape having a central angle of 90 degrees or less, for example, 70 degrees. The pipe material 11 has a through hole 11a that allows the rope-shaped main body 21 to penetrate along the length direction. The through hole 11a has a diameter slightly larger than the diameter of the rope-shaped main body 21, and is curved so that the rope-shaped main body 21 can be slid and stopped at an arbitrary position on the rope-shaped main body 21. The diameter and the degree of curvature of the through-hole 11a are appropriately set according to the properties of the rope-shaped main body 21. The through hole 11a has an upper port 11b at one end and a lower port 11c at the other end. The upper opening 11b and the lower opening 11c are spread outwardly like a trumpet. When attaching the stopper 22 to the distal end portion of the rope-shaped main body 21, the tube-shaped material 11 is inserted into the through-hole 11 a and attached to the rope-shaped main body 21. A ring 23 for hanging by a crane or the like is formed on the rope-shaped main body 21 on the opposite side of the stopper 22 and the tube 11.

  As shown in FIG. 3, the engaging portion 12 has a large-diameter hole 12a, a small-diameter hole 12b, and a bottom portion 12c which are cylindrical and communicate with each other. The large-diameter hole 12a has an insertion opening 12d into which the rear portion 22g of the stopper 22 can be inserted. The insertion port 12d is positioned on the front side of the opening of the lower port 11c, and faces the same side as the lower port 11c. The small diameter hole 12b has a diameter smaller than the diameter of the stopper 22 and into which the rope-shaped main body 21 can be inserted. The bottom 12c has a ring shape with a width, and is continuous with the inner wall of the large diameter hole 12a and the inner wall of the small diameter hole 12b. The large diameter hole 12a, the small diameter hole 12b, and the bottom 12c have the same center line. The engaging portion 12 has an insertion groove 12e on a side. The insertion groove 12e allows the rope-shaped main body 21 to be inserted into the large-diameter hole 12a, the small-diameter hole 12b, and the bottom portion 12c from the side surface, and has a width smaller than the diameter of the stopper 22. The insertion groove 12 e extends to both ends of the engaging portion 12.

  The engaging portion 12 is detachably engaged with the stopper 22 inserted into the large-diameter hole 12a from the insertion opening 12d. The engaging portion 12 is integrally attached to the side of the tube 11 so as to intersect the tube 11. The engaging portion 12 is arranged so that the rope-shaped main body 21 intersects with the rope-shaped main body 21 inside the through hole 11a when engaged with the stopper 22. When the rear part 22g is inserted into the insertion opening 12d of the large-diameter hole 12a, the stopper 22 stops the rearward movement when the rear part 22g hits the bottom part 12c.

  The guide tube 13 is integrally attached to the tube 11 and the engaging portion 12. The guide tube portion 13 has a guide hole 13a into which the rope-shaped main body 21 can be inserted. The guide tube portion 13 has a guide groove 13b on a side portion of the guide tube 13 that allows the rope-shaped main body 21 to be inserted into the guide hole 13a from a side surface. The guide slot 13b extends to both ends of the guide cylinder 13. The guide hole 13a extends forward of the small-diameter hole 12b. The guide hole 13a has the same center line as the small diameter hole 12b. The plane through which the center line extending in the longitudinal direction of the through hole 11a passes is parallel to the center lines of the large-diameter hole 12a, the small-diameter hole 12b, the bottom 12c, and the guide hole 13a.

The operation of the lifting aid will be described.
In the lifting aid 10, the rope-shaped main body 21 is passed through the through-hole 11 a of the pipe 11 in advance. As shown in FIG. 5C, when lifting the load 4, the rope-shaped main body 21 between the stopper 22 and the tube 11 is wound around the load 4 and fastened. The luggage 4 may be wood, steel, building material, or any other thing. Next, the rope-shaped main body 21 on the rear portion 22g side of the stopper 22 is inserted into the insertion groove 12e from the side surface and positioned in the large-diameter hole 12a and the small-diameter hole 12b. Further, the rope-shaped main body 21 is inserted into the guide slot 13b from the side surface and positioned in the guide hole 13a. Next, the rear portion 22g of the stopper 22 is inserted into the insertion port 12d. Thus, as shown in FIG. 1, the stopper 22 and the engaging portion 12 can be easily and reliably engaged. At this time, by positioning the rope-shaped main body 21 in the guide hole 13a, it is possible to prevent a concentrated load from being applied to one point of the rope-shaped main body 21 at a contact point with the engaging portion 12 and to make the rope-shaped main body 21 hardly damaged. be able to.

  In the state shown in FIG. 5C, the load 23 is lifted by suspending the loop 23 of the rope-shaped main body 21 with a crane. Since the through hole 11a is curved in an arc shape, a concentrated load is hardly applied to one point of the rope-shaped main body 21, and the rope-shaped main body 21 is hardly damaged. Further, since the rope-shaped main body 21 is curved in a gentle circular shape, it is hardly damaged.

  When the stopper 22 is engaged with the engaging portion 12, the rope-shaped main body 21 intersects with the rope-shaped main body 21 inside the through-hole 11a. The luggage 4 can be securely tightened. For this reason, when the load swings, the load 4 is less likely to fall off, and the rope-shaped member 20 is less likely to lean toward the center of the load 4 during the slinging operation, so that safety and work efficiency are good. Also, since the wire rope is not loosened, there is little need to hold the wire rope so as not to shift. Since the worker can easily signal the slinging operation, the risk of the operation can be greatly reduced.

Next, a modification of the lifting aid according to the embodiment of the present invention will be described with reference to FIG.
In FIG. 4, the same portions as those shown in FIGS. 1 and 2 are denoted by the same reference numerals, and redundant description will be omitted.
As shown in FIG. 4, the tube material 11 has a tube material slot 30 on the side. The tube material slot 30 has a width smaller than the diameter of the stopper 22 so that the rope-shaped main body 21 can be inserted into the through hole 11a from the side surface. The tube material slot 30 extends to both ends of the tube material 11. The lifting aid 10a has a plurality of holding members 31. The holding member 31 is formed of a snap ring having a C-shaped cross section, and is attached to the tube 11 so as to hold the rope-shaped main body 21 inside the through hole 11 a across the tube material slot 30.

  When the lifting aid 10a shown in FIG. 4 is used, the rope-shaped main body 21 of a commercially available rope-shaped member 20 as shown in FIG. 2E is inserted into the tube material slot 30 from the side surface and positioned in the through-hole 11a. If the holding member 31 is attached to the tube material 11 so as to straddle the tube material hole 30, the rope-shaped main body 21 can be held inside the through hole 11a. For this reason, there is no need to previously penetrate the rope-shaped main body 21 through the through-hole 11a of the tube material 11, and the lifting aid 10a can be easily attached to the existing rope-shaped member 20. The lifting aid 10a shown in FIG. 4 can be used similarly to the lifting aid 10 shown in FIGS.

  The lifting aid 10 or the lifting aid 10a may be provided with a ring that can be engaged with a hook of a crane.

DESCRIPTION OF SYMBOLS 1 Roller 2 Hook 3 Wire rope 4 Luggage 5 C type metal fittings 6 Ball wire rope 7 Luggage 10, 10a Lifting aid 11 Tube material 11a Through hole 11b Upper port 11c Lower port 12 Engagement part 12a Large diameter hole 12b Small diameter hole 12c Bottom part 12d Insertion opening 12e Insertion groove 13 Guide cylindrical portion 13a Guide hole 13b Guide groove hole 20 Rope member 21 Rope body 22 Stopper 22a Stopper body 22b Sleeve 22c Cotter 22d Lock screw 22e Female thread 22f Male thread 22g Rear part 30 Tube material hole 31 Holding member

Claims (4)

A lifting aid for lifting a load with a rope-shaped member having a stopper at the tip of the rope-shaped body,
Having a tube and an engagement portion,
The pipe material has a through hole through which the rope-shaped main body penetrates, and the through-hole is formed so that the rope-shaped main body slides and can be stopped at an arbitrary position of the rope-shaped main body,
The engaging portion detachably engages with the stopper, and when engaged with the stopper, crosses the rope-shaped body with the rope-shaped body inside the through-hole and stops the rearward movement of the stopper. is provided in the pipe member so as to,
The stopper has a larger diameter than the rope-shaped main body, the engaging portion is cylindrical, and has therein a communicating large-diameter hole and a small-diameter hole, and the large-diameter hole inserts a rear portion of the stopper. The small-diameter hole has a diameter smaller than the diameter of the stopper so that the rope-shaped main body can be inserted therein, and the engaging portion allows the rope-shaped main body to have the large-diameter hole and the small-diameter hole from the side. Having an insertion groove on the side that can be inserted into the hole and has a width smaller than the diameter of the stopper,
Characteristic lifting aid. The through-hole has an upper port and a lower port, the insertion port is located in front of the opening of the lower port,
Lifting aid as claimed in claim 1, wherein. A guide tube portion, wherein the guide tube portion is provided in the pipe member with a guide hole therein into which the rope-shaped main body can be inserted, and the guide tube portion is configured to connect the rope-shaped main body to the guide hole from a side surface. Having a guide groove hole that can be inserted on the side, the guide hole extends to the opening front side of the small diameter hole,
The lifting aid according to claim 1 or 2, The pipe material has a pipe material slot on a side portion having a width smaller than the diameter of the stopper, and the rope-shaped main body can be inserted into the through hole from a side surface, and the rope is inserted into the through hole across the pipe material slot. Having a holding member attached to the tubing to hold the tubular body,
The lifting aid according to any one of claims 1 to 3 , wherein