JP6026627B1 - Strand bending jig - Google Patents

Abstract

An object of the present invention is to easily bend a strand of high hardness by human power. A strand bending jig according to an embodiment of the present invention includes a rod-like member having a thread groove formed on an outer periphery thereof, a rod-like member screwed into a screw hole formed through one end, and the like. A jig body part that supports a strand that is an object to be bent by a support part formed at the end, and is provided at one end of the rod-like member, and a rotational force is applied around the rotation axis of the rod-like member to form a rod shape in the jig body part. An operating member that moves the screwing position of the member and a recess that is connected to the other end of the rod-shaped member and that is recessed in the direction of the screw hole on the opposite side of the rod-shaped member. And a head piece that presses the strand at the tip of the concave portion with the support portion as a fulcrum as it is moved in the direction. [Selection] Figure 1

Description

  The present embodiment relates to a strand bending jig.

  A wire rope used in an elevator is formed by twisting a plurality of strands. In rope socketing work for fixing the wire rope to the socket, it is necessary to bend each strand constituting the wire rope. However, a wire rope used in a large capacity model installed in a high-rise building or the like has a larger rope diameter and higher wire hardness than a wire rope used in a normal elevator. In such a case, it is difficult to bend the strand by human power using a tool such as pliers.

Japanese Patent Laying-Open No. 2015-21197

  In view of the difficulty in manually bending a strand, a strand bending jig capable of bending a strand by using the driving force of an electric power tool has been considered. However, when using an electric tool connected to a jig, there are problems such as adjustment of the tightening force and bending angle during bending work is difficult compared to human power, and it is necessary to carry the electric tool to the work site. there were.

  The problem to be solved by the present invention is to provide a strand bending jig capable of easily bending a high-hardness strand by human power.

  A strand bending jig according to an embodiment of the present invention includes a rod-shaped member having a thread groove formed on the outer periphery, and the rod-shaped member screwed into a threaded hole formed through one end and formed at the other end. A jig main body that supports the object to be bent by the support, and is provided at one end of the rod-shaped member, and applies a rotational force around the rotation axis of the rod-shaped member, so that the rod-shaped member of the jig main body An operating member that moves the screwing position and a recess that is connected to the other end of the rod-shaped member and that is recessed in the direction of the screw hole portion on the opposite side of the rod-shaped member. A head piece that presses the object to be bent at the tip of the concave portion with the support portion as a fulcrum as it is moved in the direction of the operation member.

It is a perspective view of the strand bending jig | tool which concerns on the 1st Embodiment of this invention. It is an enlarged view of the headpiece shown in FIG. It is a top view which shows a state when the strand bending jig | tool shown in FIG. 1 is fixed to a strand. It is a top view which shows the state which finished bending the strand using the strand bending jig | tool shown in FIG. It is a perspective view of the strand bending jig | tool which concerns on the 2nd Embodiment of this invention. It is sectional drawing in the center position of the height direction of the head piece of a strand bending jig | tool which concerns on the 3rd Embodiment of this invention, and a support part. It is a perspective view of the strand bending jig | tool which concerns on the 4th Embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

<First Embodiment>
FIG. 1 is a perspective view of a strand bending jig 1 according to the first embodiment of the present invention. As shown in the figure, the strand bending jig 1 of this embodiment includes a rod-shaped member 11, a jig main body 12, an operation member 13, a head piece 14, and a guide rail 15. Here, a configuration example of a jig based on the giant clam vise is shown, but the type of vise is not limited to the giant clam vise.

  The rod-shaped member 11 is a metal shaft having a thread groove 11a formed on the outer periphery, and has a male screw structure. The jig main body 12 is an object to be bent at a support portion 12b formed at the other end while the screw groove 11a of the rod-shaped member 11 is screwed into a screw hole portion 12a having a female screw structure penetratingly formed at one end. A certain strand ST is supported. The screw hole portion 12 a and the support portion 12 b are disposed on an extension line of the rotation axis A of the rod-shaped member 11. In the present embodiment, the jig main body 12 is formed in a U-shape, but may be any other shape such as an arc shape or a bent shape as long as the screw hole portion 12a and the support portion 12b can be formed at both ends.

  The operation member 13 is provided at one end of the rod-shaped member 11, and an operator applies a rotational force around the rotation axis A to the rod-shaped member 11 to move the screwing position of the rod-shaped member 11 in the jig body 12. It is a member for. In the present embodiment, the operation member 13 is a metal shaft, but may be a member having another shape, such as a grip of a screw driver, as long as a rotational force can be applied to the rod-shaped member 11.

  The head piece 14 is connected to the other end of the rod-shaped member 11, and a concave portion 14 a that is recessed in the direction of the screw hole 12 a is formed on the opposite side to the rod-shaped member 11. This is a member that presses the strand ST at the tip end portion 14b of the concave portion 14a with the support portion 12b as a fulcrum as the screwing position of is moved in the direction of the operation member 13.

  FIG. 2 is an enlarged view of the head piece 14 shown in FIG. As shown in the figure, in order to securely fix the strand ST to the tip portion 14b of the recess 14a, the shape of the outer peripheral surface of the strand ST is formed at the center position in the height direction (Z direction in the drawing) of the head piece 14. A curved portion 14c formed in a curved shape is formed. The strand ST is supported by the strand ST entering the two curved portions 14c. In addition, a guide groove 14d is formed on the inner wall surface of the recess 14a from the position of the curved portion 14c in the depth direction of the recess 14a (the Y direction in the drawing) in order to regulate the bending direction of the strand ST when the strand ST is bent. ing. The guide groove 14d is inclined as it proceeds in the depth direction in accordance with the arc shape of the depth portion of the recess 14a.

  In the head piece 14, the width W between the front end portions 14b of the recess 14a and the depth D of the recess 14a correspond to the diameter Di of the strand ST. As the diameter of the strand ST increases, the head piece 14 is replaced with a different head piece 14 having a wider width W between the tip portions 14b. The structure of the connection portion between the head piece 14 and the rod-shaped member 11 will be described later.

  The guide rail 15 is a plate-like member that is attached to the jig body 12 and guides the head piece 14 in parallel with the rotation axis A of the rod-like member 11. In the present embodiment, the guide rail 15 and the jig main body 12 are integrally formed by welding or the like. By having the guide rail 15, the direction of the head piece 14 can always be kept constant even when the rod-shaped member 11 rotates.

Hereinafter, the operation | work using the strand bending jig | tool 1 comprised as mentioned above is demonstrated.
First, the operator operates the operation member 13 to rotate the rod-shaped member 11 around the rotation axis A in the first direction (screw loosening direction), thereby moving the head piece 14 to the screw hole 12a side, The space | interval with the support part 12b is expanded.
Next, the bent portion of the strand ST is set on the support portion 12b.

  Next, by operating the operation member 13 and rotating the rod-shaped member 11 around the rotation axis A in the second direction (screw tightening direction), the head piece 14 is moved to the support portion 12b side, and the head piece 14 It fixes to the strand ST in the front-end | tip part 14b (curved part 14c).

  FIG. 3 is a top view showing a state when the strand bending jig 1 shown in FIG. 1 is fixed to the strand ST. At this time, the strand ST is in a state of being sandwiched at a total of three locations including the support portion 12b and the two tip portions 14b (curved portion 14c) of the head piece 14. In addition, the head piece 14 is formed with a screw connection portion 14 e that allows the head member 14 to be attached to and detached from the rod-shaped member 11 at a connection portion between the rod-shaped member 11 and the screw tip portion 11 b. Here, the rod-shaped member 11 is rotatably fitted to the head piece 14.

  Next, the operation member 13 is operated to further rotate the rod-shaped member 11 around the rotation axis A in the second direction (screw tightening direction), thereby moving the head piece 14 to the support portion 12b side, and the support portion 12b. The strand ST is pressed by the two tip portions 14b (curved portion 14c) of the concave portion 14a with the fulcrum as a fulcrum, and the strand ST is bent on the inner side of the concave portion 14a.

  FIG. 4 is a top view showing a state in which the strand ST has been bent using the strand bending jig 1 shown in FIG. As shown in the figure, when a desired bending wrinkle is formed on the strand ST, the operator operates the operation member 13 to rotate the rod-shaped member 11 around the rotation axis A in the first direction (screw loosening direction), Remove the jig from the strand ST. The operation so far is repeated for all the strands ST constituting the wire rope (not shown).

  When the bending work is finished for all the strands ST, the worker accommodates all the bent ends in a socket (not shown), and pours babbet metal or the like into the socket, so that the wire rope (strand A socket is fixed to the end of the ST bundle.

Thus, according to the strand bending jig 1 according to the present embodiment, the following effects are produced.
(1) Since the strand ST can be easily bent by human power, the working time can be shortened as compared with the prior art.
(2) The location and bending angle at which the strand ST is bent can be arbitrarily adjusted.
(3) The jig is based on a giant clam vise and does not require an extra power tool, so there is no significant increase in jig size or weight, and it is easy to carry to the work place.

<Second Embodiment>
FIG. 5 is a perspective view of the strand bending jig 1 according to the second embodiment of the present invention. As shown in the figure, the fixing position of the guide rail 15 in the direction perpendicular to the rotation axis A of the rod-shaped member 11 (Z direction in the figure) is adjusted below the support portion 12b and the screw hole portion 12a of the jig main body portion 12, respectively. A plurality of adjustment holes 16 are formed. Further, the guide rail 15 is fixed by fastening an end portion of a fixing screw 17 inserted through an adjustment hole 16 having a desired height with a nut 18.

  As described above, the strand bending jig 1 according to the present embodiment is (1) the guide rail 15 is not integrally formed with the jig main body 12 but is detachable, and (2) the fixing screw 17 It is different from the first embodiment in two points that the fixing position of the guide rail 15 can be adjusted by changing the adjustment hole 16 to be inserted. For this reason, in addition to the effect in the said 1st Embodiment, the effect that it can respond flexibly also when exchanging to the head piece 14 from which size differs according to the kind of strand ST arises.

<Third Embodiment>
FIG. 6 is a cross-sectional view at the center position in the height direction of the head piece 14 and the support portion 12b of the strand bending jig 1 according to the third embodiment of the present invention. As shown in the figure, the head piece 14 in this embodiment is covered with a protective member 19a on the surfaces of the recess 14a, the guide groove 14d, and the tip 14b. Similarly, the protective member 19b is also coated on the surface of the support portion 12b of the jig main body portion 12. Specific examples of the protection members 19a and 19b include elastic bodies such as rubber and sponge. The material and thickness of the protection members 19a and 19b can be arbitrarily changed. In the present embodiment, the entire surface of the recess 14a is covered with the protective member 19a. However, the protective member 19a may be covered only on the portion in contact with the strand ST. The same applies to the protective member 19b.

  As described above, according to the strand bending jig 1 according to the present embodiment, in addition to the effects in the above two embodiments, the protective members 19a and 19b prevent the surface of the strand ST from being damaged during the bending operation of the strand ST. The effect of being able to be produced.

<Fourth Embodiment>
FIG. 7 is a perspective view of a strand bending jig 1 according to the fourth embodiment of the present invention. As shown in the figure, the strand bending jig 1 of the present embodiment is different from the above three embodiments in that the guide rail 15 is removed from the component parts.

  Thus, according to the strand bending jig 1 according to the present embodiment, since the guide rail 15 is not provided, the direction of the head piece 14 may be inclined with the rotation of the rod-shaped member 11. However, since the rod-like member 11 is rotatably connected to the head piece 14 as in the above embodiment, the orientation of the head piece 14 can be easily adjusted manually. In addition, since the number of components of the jig is less than that of the above embodiment, there is an advantage that the manufacturing cost can be kept low.

  As mentioned above, although embodiment of this invention was described, this embodiment is shown as an example and is not intending limiting the range of invention. The novel embodiment can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. This embodiment and its modifications are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

ST ... Strand 1 ... Strand bending jig 11 ... Bar-shaped member 11a ... Screw groove 11b ... Screw tip 12 ... Jig body 12a ... Screw hole 12b ... Supporting part 13 ... Operating member 14 ... Head piece 14a ... Recess 14b ... Tip portion 14c ... curved portion 14d ... guide groove 14e ... screw connection portion 15 ... guide rail 16 ... adjustment hole 17 ... fixing screw 18 ... nuts 19a, 19b ... protective member

Claims (5)

A rod-shaped member having a thread groove formed on the outer periphery;
The rod-shaped member is screwed into a threaded hole formed through one end, and a jig body that supports the object to be bent by a support formed at the other end,
An operation member that is provided at one end of the rod-shaped member, applies a rotational force around a rotation axis of the rod-shaped member, and moves a screwing position of the rod-shaped member in the jig main body;
A concave portion that is connected to the other end of the rod-shaped member and that is recessed in the direction of the screw hole portion is formed on the opposite side to the rod-shaped member, and the screwing position is moved in the direction of the operation member as described above. A headpiece that presses the object to be bent at the tip of the recess with the support as a fulcrum;
A strand bending jig comprising:   The strand bending jig according to claim 1, further comprising a guide rail attached to the jig main body and guiding the head piece in parallel with a rotation axis of the rod-shaped member.   The jig body is formed with a plurality of adjustment holes for adjusting the fixing position of the guide rail in a direction perpendicular to the rotation axis of the rod-shaped member, below the support portion and the screw hole portion, respectively. The strand bending jig according to claim 2, wherein   The head piece has a width between the front end portions of the concave portion and a depth of the concave portion corresponding to the diameter of the object to be bent, and can be attached to and detached from the rod-like member at a connecting portion with the rod-like member. The strand bending jig according to any one of claims 1 to 3, wherein a screw connection portion is formed.   The strand bending jig according to any one of claims 1 to 4, wherein a protective member is coated on all or a part of the surface of the concave portion and the support portion.

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