JP5112285B2 - Rope fixture - Google Patents

Description

  The present invention relates to a rope fixing tool that can be used as, for example, a master rope tensioner.

  In high-altitude work sites such as power transmission line construction, civil engineering construction work, and painting work, the master rope 2 (made of synthetic fiber or cotton) is placed between the master rope struts 13 (only one side is shown) as shown in FIG. The rope 2) is stretched horizontally, and a lifeline 14 connected to the waist belt of the worker S and the like is hung on the master rope 2 to prevent the worker S from falling and to work safely at high places.

  At this time, a master rope tensioning tool A (rope fixing tool A) for horizontally stretching the master rope 2 is used. The applicant, as this type of rope fixing tool A, has been disclosed in Japanese Patent No. 3963898 (Patent Document). 1) We have several other patents and utility model registrations.

  The rope fixture A of Patent Document 1 will be briefly described with reference to FIG. 1 and FIG. 2. Two ropes 1 (the parent 2) are placed between the two boards 1 with the two boards 1 facing each other at a predetermined interval. A rope main body 3 that can be inserted through the rope 2) is provided, and a rope receiving portion 4 that receives and supports the rope 2 is provided between the two substrates 1 that constitute the fixture main body 3, and the rope receiving portion 4 A rope pressure contact body 5 is provided between the two substrates 1 so as to face each other, and an insertion gap 7 of the rope 2 is formed between the tip pressure contact surface 6 of the rope pressure contact body 5 and the rope receiving portion 4, and the rope pressure contact is formed. The body 5 is provided with a pressure contact surface 6 so as to be rotatable toward the rope receiving portion 4, and is provided with an elastic body 8 that urges the rope pressure contact body 5 to rotate in the direction of narrowing the rope insertion gap 7 width. The shape of the pressure contact surface 6 of the body 5 is such that the width of the rope insertion gap 7 is gradually narrowed by the rotation of the rope pressure contact body 5. It has a configuration which is formed in that shape.

  Then, the rope 2 can be inserted into the rope insertion gap 7 by rotating the rope pressure contact body 5 in a wide direction against the urging force of the elastic body 8, and the rope 2 in the direction opposite to the rope insertion direction H. The rope pressure contact body 5 abutting against the rope 2 is rotated in the direction of narrowing the rope insertion gap 7 and the pressure contact surface 6 of the rope pressure contact body 5 is received and supported by the rope receiving portion 4. Is configured to be fixed in a state where it cannot be pulled out by pressure contact.

  Further, the two substrates 1 constituting the fixture main body 3 are set so that the distance L2 between the two substrates is set to 22 mm. (See FIG. 3 (b)), and the pressure contact surface 6 of the rope pressure contact body 5 is inclined along the twist groove 11 between the ridges 10 of the rope 2. A plurality of locking ridges 12 having a length are formed in a parallel arrangement state at intervals in the rope insertion direction H, and the locking ridges 12 are bitten into the twisted grooves 11 of the rope 2 and locked. Thus, a high rope 2 fixing strength can be obtained.

Japanese Patent No. 3963898

  By the way, in the conventional patent document 1, when a general rope 2 having a diameter of 16 mm is clamped and fixed between the rope press body 5 and the rope receiving portion 4, the press-contacted rope 2 is crushed and deformed to be orthogonal to the clamp pressure direction. The diameter of the rope 2 is allowed to increase until the distance L2 (22 mm) between the two substrates 1 constituting the fixture body 3 is reached (see FIG. 5B). .)

  However, as the rope 2 is crushed flat, the pressure contact force of the rope pressure contact body 5 escapes. Therefore, depending on the degree of deformation of the rope 2 at the time of pressure contact, it may take some time to exert a high pressure contact force. Or there is a concern that the strength of fixing the rope 2 is slightly lowered.

  At this time, a plurality of locking ridges 12 formed on the pressure contact surface 6 of the rope pressure contact body 5 bite and lock into the twisted grooves 11 between the ridges 10 of the rope 2 so that high fixing strength of the rope 2 is obtained. Although the applicant has been researching and developing to further improve the strength of fixing the rope 2 of this kind of rope fixing tool A, the locking ridge 12 just matches the twist groove 11 of the rope 2. When the bite is engaged and locked, the rope 2 is screwed to the pressure contact surface 6 so that the rope 2 operates around the screw with respect to the pressure contact surface 6 (although the rope 2 I found out that it might slip).

  The present invention has been made in order to find out and solve the problems in such a conventional rope fixing tool, and to prevent the rope from being crushed at the time of fixing the rope pressure as much as possible, and to operate the rope around the screw. It is an object of the present invention to provide an epoch-making rope fixing tool that prevents and exhibits extremely strong rope fixing strength.

  The gist of the present invention will be described with reference to the accompanying drawings.

  The two substrates 1 are arranged so as to face each other at a predetermined interval to constitute a fixture body 3 through which the rope 2 can be inserted between the two substrates 1, and the two substrates 1 constituting the fixture body 3. A rope receiving part 4 for receiving and supporting the rope 2 is provided between them, and a rope pressure contact body 5 is rotatably provided between the two substrates 1 so as to face the rope receiving part 4. The rope 2 is inserted into the rope insertion gap 7 between the rope pressure contact body 5 and the rope pressure contact body 5. The rope pressure contact body is configured to gradually narrow, and includes an elastic body 8 that urges the rope pressure contact body 5 in the rotational direction in which the rope insertion gap 7 is narrow and resists the wide rotation direction. 5 is turned against the urging force of the elastic body 8 in the direction in which the rope insertion gap 7 becomes wider. As a result, the rope 2 can be inserted into the rope insertion gap 7, and the rope 2 is pulled in the direction opposite to the rope insertion direction H, so that the rope pressure contact body 5 that comes into contact with the rope 2 is A rope fixture A that rotates in the direction of narrowing the gap 7 and presses the rope 2 supported by the rope receiving portion 4 with the pressure-contact surface 6 of the rope pressure-contacting body 5 so as to be clamped and fixed so that it cannot be pulled out. The distance L1 between the two substrates 1 constituting the fixture body 3 is set to an interval larger than 16 mm and smaller than 22 mm, which is the diameter of the rope 2, and between the two substrates 1. When the rope 2 inserted and received and supported by the rope receiving part 4 is clamped and fixed by the pressure contact surface 6 of the rope pressure contact body 5, the clamped part 9 of the rope 2 is crushed and deformed by the pressure contact. Two substrates to expand the diameter The rope is pressed onto the pressure contact surface 6 of the rope pressure contact body 5 with a locking ridge 12 having a length in the inclined direction along the twisted groove 11 between the stranded threads 10 of the rope 2. A plurality of juxtaposed ridges 12 are formed in parallel with each other in the insertion direction H, and the inclination angle α of each locking ridge 12 with respect to the rope insertion direction H is inclined with respect to the length direction of the rope 2. The present invention relates to a rope fixture characterized in that the angle is set to be larger than the angle θ and smaller than 90 degrees.

  2. The distance L1 between the two substrates 1 constituting the fixture body 3 is set to an interval larger than 16 mm and smaller than 20 mm, which is the diameter dimension of the rope 2. This relates to the rope fixing tool.

  Since the present invention is configured as described above, compared to the above-mentioned Patent Document 1, since the rope clamped portion is restrained from being crushed and deformed and expanded in diameter when the rope pressure welding is fixed, the pressure welding by the rope pressure welding body is good. As the force is exerted, a strong pressure contact force is exerted from a relatively early turning stage, and the rope is quickly and firmly clamped and fixed, and the present invention is formed on the pressure contact surface of the rope pressure contact body. Since each of the locking ridges is configured to be locked to the twisted ridge while being locked to the twisted groove of the rope, the rope screw that may be caused by the fact that the locking ridge just matches the twisted groove. It is an epoch-making rope fixing tool that exhibits extremely excellent rope fixing strength, such as no rotating operation (sliding operation while rotating).

  Further, in the invention according to claim 2, the rope fixing tool having an excellent structure capable of preventing the crushing deformation of the sandwiched portion of the rope at the time of fixing the pressure of the rope very well, and thereby holding the rope more firmly. It becomes.

  Embodiments of the present invention that are considered suitable (how to carry out the invention) will be briefly described with reference to the drawings, illustrating the operation of the present invention.

  For example, the product of the present invention can be used as the master rope tensioner A.

  Specifically, the master rope 2 as the rope 2 fixed to the rope fixing tool A of the present invention is installed between the opposite master rope struts 13, and the life rope 14 is slidably provided on the master rope 2. Is connected to, for example, the waist belt of the worker S to prevent the worker S from falling and to ensure work safety. The tension of the master rope 2 between the master rope struts 13 is fixed to the rope of the present invention, for example. This is done by pulling one end of the master rope 2 fixed by the tool A.

  That is, for example, one end of the master rope 2 in which the product of the present invention is connected to one master rope support 13 and the other end is connected to the other master rope support 13 constitutes the fixture body 3 of the invention. The rope insertion gap 7 is widened in the rope insertion gap 7 between the rope receiving portion 4 and the rope press-contacting body 5 that is inserted between the two boards 1 and provided in an opposed state between the two boards 1. In this manner, the rope press-connecting body 5 is rotated against the urging force of the elastic body 8 while inserting one end of the main rope 2, and the elastic body 8 is attached to one end of the main rope 2 inserted through the rope insertion gap 7. By pressing the pressure contact surface 6 of the rope pressure contact body 5 with a force, the master rope 2 (the sandwiched portion 9 thereof) is sandwiched and fixed by the pressure contact surface 6 of the rope pressure contact body 5 and the rope receiving portion 4 to face each other. The master rope 2 can be installed between the master rope supports 13.

  In this case, the master rope 2 can be smoothly inserted between the two substrates 1 facing each other with a distance L1 larger than 16 mm, which is the diameter dimension of the master rope 2, and the parent inserted through the rope insertion gap 7 When the pressure contact surface 6 of the rope pressure contact body 5 comes into pressure contact with the sandwiched portion 9 of the rope 2 by the urging force of the elastic body 8, a plurality of locking ridges 12 formed in a parallel state at intervals in the rope insertion direction H. Will bite and lock in the twisted grooves 11 between the twisted ridges 10 of the sandwiched portion 9 to firmly prevent the parent rope 2 from sliding.

  When the main rope 2 in the erected state is further strongly tensioned, or when the slender parent rope 2 is tensioned and stretched, one end portion of the main rope 2 inserted through the rope insertion gap 7 is connected to the parent rope 2 insertion direction. Pull in (rope insertion direction H). Then, the rope press-connecting body 5 rotates in a direction away from the master rope 2 against the urging force of the elastic body 8 to release the fixed state of the master rope 2 and pulls the master rope 2 in its insertion direction. Can be tensioned. Then, when the master rope 2 is released after the tension, the press contact surface 6 of the rope press contact body 5 presses the master rope 2 received and supported by the rope receiver 4 by the restoring force of the elastic body 8, and the master rope 2 is sandwiched again. Fixed, the master rope 2 is firmly stretched in the horizontal direction.

  Further, when the rope press-connecting body 5 is subjected to a pulling load on the master rope 2 in the direction opposite to the direction of insertion of the master rope 2, that is, a force for pulling the master rope 2 in the horizontal direction, the press-contact surface 6 and the locking ridges 12 are formed. The rope pressure contact body 5 acts so as to be strongly pressed against the master rope 2, and the parent rope 2 pressure welding fixing action works strongly. At this time, the rope receiving portion 4 is also strongly pressed against the master rope 2 by the pressure contact force of the pressure contact surface 6. As a result, the sliding resistance of the master rope 2 increases on the rope receiving part 4 side, and the master rope 2 is firmly fixed. Therefore, even if the master rope 2 is pulled in the direction opposite to the parent rope 2 insertion direction, the master rope 2 does not come off and the strong tension state of the master rope 2 can be maintained.

  Further, when the operator S with the lifeline 14 falls and a very strong traction force in the direction opposite to the rope insertion direction H to the rope insertion gap 7 is applied to the master rope 2, the tow of the master rope 2 is also applied. With the movement, the rope press-contacting body 5 is shifted in a direction to further narrow the rope insertion gap 7, and the press-contact surface 6 of the rope press-contacting body 5 is further pressed into contact with the sandwiched portion 9 of the master rope 2. The stop ridge 12 is more strongly locked to the twisting groove 11 of the sandwiched portion 9, and the sliding of the master rope 2 in the rope insertion gap 7 (the fall of the worker S) is firmly prevented. .

  In addition, when the pressure contact surface 6 of the rope pressure contact body 5 strongly presses the master rope 2 of the rope insertion gap 7 in this way, the sandwiched portion 9 of the master rope 2 includes the two substrates 1 constituting the fixture main body 3. In the present invention, the distance L1 between the two substrates 1 is equal to the distance between the two substrates in Patent Document 1 in the present invention. Since it is smaller than 22 mm, the diameter of the sandwiched portion 9 of the master rope 2 is suppressed as compared with Patent Document 1, and the sandwiched portion 9 is not easily crushed and deformed. That is, since the clamped portion 9 of the master rope 2 is not easily crushed when being pressed and fixed, the press-contact force of the rope press-contact body 5 is difficult to escape from the clamped portion 9, and a good press-contact force by the rope press-contact body 5 is exhibited. At the same time, the strong pressing force of the rope pressing body 5 is exerted from a relatively early turning stage, and the master rope 2 is quickly and firmly clamped and fixed.

  At this time, each of the locking protrusions 12 that bite and lock the master rope 2 has an inclination angle α with respect to the rope insertion direction H greater than an inclination angle θ of the twisted groove 11 with respect to the length direction of the rope 2. Because it is large and smaller than 90 degrees, the entire area of the locking ridge 12 does not bite into the twisting groove 11 of the master rope 2 and does not lock, and there must be a part that always locks to the ridge 10. become. Therefore, the operation around the screw of the master rope 2 (the action that the master rope 2 slides while rotating with respect to the pressure contact surface 6) that can occur because the locking ridge 12 just matches the twist groove 11 never occurs. The tow 2 is clamped and fixed extremely firmly.

  Moreover, if the rope press-contacting body 5 is separated from the rope receiving part 4 against the urging force of the elastic body 8, the fixed state of the master rope 2 can be released or loosened.

  For example, if the distance L1 between the two substrates 1 constituting the fixture body 3 is set to be larger than 16 mm and smaller than 20 mm, which is the diameter of the rope 2 (master rope 2), Since the diameter of the sandwiched portion 9 of the master rope 2 is suppressed to a diameter smaller than 20 mm and the sandwiched portion 9 is further crushed and hardly deformed, the master rope 2 can be clamped and fixed more firmly.

  Specific embodiments of the present invention will be described with reference to the drawings.

  This embodiment is applied to the master rope tensioner A, and this rope receiver is attached to the fixture main body 3 having the rope receiver 4 for receiving and receiving the master rope 2 (synthetic fiber or cotton rope 2). A rope pressure contact body 5 is rotatably provided in a state of being opposed to the portion 4 and is configured to be able to sandwich and fix the rope 2 between the rope receiving portion 4 and the rope pressure contact body 5.

  Specifically, as shown in FIGS. 1 and 2, the fixture main body 3 is formed by arranging two substrates 1 at an interval through which the rope 2 can be inserted, and this fixture main body 3. On one side (left side in the drawing), a hook 16 is provided in a protruding state as a connecting portion 15, and the rope receiving portion 4 is fixed between the two substrates 1 on the other side of the fixture body 3.

  The distance L1 between the two substrates 1 is set to be larger than 16 mm and less than 22 mm, which is the diameter of the rope 2, and is inserted between the two substrates 1 to receive the rope. When the rope 2 received and supported by the portion 4 is clamped and fixed by the pressure contact surface 6 of the rope pressure contact body 5, the clamped portion 9 of the rope 2 is crushed and deformed by the pressure contact to increase the diameter. The single substrate 1 is configured to be suppressed.

  More specifically, as shown in FIG. 3A, the distance L1 between the two substrates 1 is set to 19 mm. That is, when the rope 2 is clamped and fixed by the pressure contact surface 6 of the rope pressure contact body 5, the clamped portion 9 of the rope 2 that is press-contacted is crushed and deformed so as to increase the diameter in a direction perpendicular to the clamping pressure contact direction. However, in this embodiment, the diameter of the sandwiched portion 9 of the rope 2 is suppressed to a maximum of 19 mm by the two substrates 1, and the configuration of the above-mentioned Patent Document 1 (the spacing between the substrates 1 is 22 mm). ), The sandwiched portion 9 is less likely to be crushed and deformed (see FIG. 5).

  Accordingly, the clamped portion 9 of the rope 2 is not easily crushed when being pressed and fixed, so that the pressing force of the rope press-contacting body 5 is difficult to escape from the clamped portion 9 and a good pressing force by the rope press-contacting body 5 is exhibited. In addition, the strong pressure contact force of the rope pressure contact body 5 is exhibited from a relatively early turning stage, and the rope 2 is quickly and firmly clamped and fixed.

  The rope receiving part 4 is made of metal and is formed in a substantially disc-like body having a slight thickness. Further, a side surface portion located on the inner side (the left side in the drawing) of the fixing tool body 3 of the rope receiving portion 4 is used as a receiving surface 17 for receiving and receiving the rope 2.

  Further, in this embodiment, the circumferential surface of the rope receiving portion 4 that is adjacent to the receiving surface 17 in the vertical direction in the drawing is formed in a groove shape in accordance with the outer surface shape of the rope 2 so that the rope 2 can be easily routed. Yes.

  The rope pressure contact body 5 is also a slightly thick metal plate. Further, the rope pressure contact body 5 is formed in a substantially fan-shaped plate-like body, and its base portion is pivoted to a pivoting portion 18 (pivoting shaft) constructed between two substrates 1 on one side of the fixture body 3. By attaching it, it can be freely rotated between the two substrates 1, and the arcuate outer peripheral surface of the rope press contact body 5 is used as a press contact surface 6 that presses the rope 2, and this press contact surface 6 is used as the rope receiving portion 4. It is opposed to the receiving surface 17 so as to be rotatable.

  That is, in this embodiment, the rope receiving portion 4 and the rope pressure contact body 5 are configured to face each other in FIGS. 1 and 2, and the receiving surface 17 of the rope receiving portion 4 and the pressure contact surface of the rope pressure contact body 5 are configured. A rope insertion gap 7 is used as a gap between the rope 6 and the rope 2 inserted through the rope insertion gap 7 is clamped and fixed between the rope receiving portion 4 (receiving surface 17) and the rope pressure contact body 5 (pressure contacting surface 6). Configure to get.

  Further, the rope pressure contact body 5 is configured such that the rope insertion gap 7 between the rope pressure contact body 5 and the rope receiving portion 4 is gradually narrowed by the rotation of the rope pressure contact body 5.

  Specifically, in the rope pressure contact body 5, the distance between the arc outer peripheral surface which is the pressure contact surface 6 and the pivoting portion 18 increases from one end of the pressure contact surface 6 to the other end. When the rope press contact body 5 is rotated in one direction, the rope insertion gap 7 becomes narrower, and when it is turned in the other (reverse) direction, the rope insertion gap 7 becomes wider. Yes.

  More specifically, the distance between the pressure contact surface 6 and the pivoting portion 18 is set to a fan shape that becomes longer from the upper side to the lower side in FIG. 2, and when the rope pressure contact body 5 is rotated upward in the figure, the rope The insertion gap 7 becomes narrower, and the rope insertion gap 7 becomes wider when rotated downward.

  The rope pressure contact body 5 includes an elastic body 8 (torsion spring) that urges the rope insertion gap 7 in a rotational direction in which the width of the rope insertion gap 7 becomes narrow and resists the rotational direction in which the rope insertion gap 7 becomes wide. The rope pressure contact body 5 (pressure contact surface 6) is configured to be biased and held in the state of being close to the rope receiving portion 4 (receiving surface 17).

  Therefore, the rope pressure contact body 5 is rotated in a direction against the urging force of the elastic body 8 to widen the rope insertion gap 7 so that the rope 2 can pass, so that the distance between the two substrates 1 from above the fixture body 3 is increased. The rope 2 can be inserted into the rope insertion gap 7 (see FIG. 2), and the rope 2 can be brought into contact with the rope 2 by the urging force of the elastic body 8 against the inserted rope 2. The rope 2 is clamped and fixed by the receiving portion 4 and the rope pressure contact body 5 so that the rope 2 is prevented from coming out upward in the figure (see FIG. 4).

  Further, in the clamped and fixed state of the rope 2, when the rope 2 insertion tip is pulled downward of the fixture body 3, the rope pressure contact body 5 that is in contact with the rope 2 insertion tip by the urging force of the elastic body 8 is The rope 2 is rotated in a wide direction (downward) against the urging force of the elastic body 8 by friction with the rope 2 moving downward, so that the rope 2 can be further pulled down and tensioned, but the rope insertion gap 7 When the rope 2 is pulled in the opposite direction (upward) to the rope insertion direction H in the rope, the rope press-contacting body 5 in contact with the rope 2 rotates in a direction to narrow the rope insertion gap 7 by friction with the rope 2. In this way, the pressure contact surface 6 of the rope pressure contact body 5 is configured so that the rope 2 received and supported by the rope receiving portion 4 is further strongly pressed to be in a state where it cannot be pulled out strongly.

  In this embodiment, the receiving surface 17 of the rope receiving portion 4 is formed in a substantially flat shape, and the receiving convex portion 19 is formed on the substantially flat receiving surface 17 in the rope insertion direction H to the rope insertion gap 7. Two or more lines are formed at intervals.

  Specifically, each of the receiving surfaces 17 is in contact with the insertion distal end side and the insertion proximal end side of the rope 2 inserted through the rope insertion gap 7 and supported by the flat receiving surface 17 of the rope receiving portion 4. The receiving convex part 19 having substantially the same width as the width (thickness) of the receiving surface 17 is formed.

  Each of the two receiving projections 19 has a protruding shape having a length in a direction substantially perpendicular to the rope insertion direction H (the length direction of the rope 2 received and supported by the receiving surface 17). The top surface has a width in the rope insertion direction H and has a planar shape substantially parallel to the receiving surface 17.

  When the receiving surface 17 receives and supports the rope 2 and each receiving projection 19 is positioned in the twisting groove 11 between the twisted ridges 10 of the rope 2, the rope 2 insertion tip side of each receiving projection 19 (see FIG. 2, the rising portion (rising surface) located on the lower side in FIG. 4 is configured to be able to be locked to the ridge 10 of the rope 2, and by this locking action, the sliding resistance of the rope 2 with respect to the receiving surface 17 is reduced. It is configured to increase.

  Accordingly, the rope receiving portion 4 is also configured to exhibit the anti-slipping action of the rope 2 by the two receiving convex portions 19.

  Further, the receiving convex portion 19 can be easily formed, for example, by integrally forming the receiving portion 4 when forming the rope receiving portion 4.

  Further, in this embodiment, a locking ridge 12 having a length in an inclined direction along the twisted groove 11 between the stranded threads 10 of the rope 2 is provided on the pressure contact surface 6 of the rope pressure welded body 5. A plurality of the gaps 7 are formed in parallel with a gap in the rope insertion direction H.

  Specifically, as shown in FIG. 1, the locking ridge 12 is inclined with respect to the width direction of the pressure contact surface 6 (the thickness direction of the rope pressure contact body 5) corresponding to the arrangement direction of the twist groove 11 of the rope 2. It is formed in an oblique ridge having a length in the direction.

  Further, the locking ridges 12 are integrally formed when the rope press-contact body 5 is formed with, for example, lost wax or the like to improve mass productivity.

  In addition, the pressure contact surface 6 of this embodiment including this locking ridge 12 is formed in a concave groove shape in plan view that matches the outer shape of the rope 2, so that the rope 2 that is clamped and fixed by clamping is laterally displaced. It is configured so that it is difficult for it to come off.

  Further, in this embodiment, as shown in FIG. 6, the inclination angle α of each locking ridge 12 with respect to the rope insertion direction H is determined from the inclination angle θ of the twist groove 11 with respect to the length direction of the rope 2. And an angle smaller than 90 degrees with respect to the rope insertion direction H.

  Specifically, the inclination angle θ of the twisted groove 11 with respect to the length direction of the rope 2 is about 50 degrees (an approximate angle when the rope 2 is viewed two-dimensionally), whereas the pressure contact surface 6 The inclination angle α of the locking ridge 12 with respect to the rope insertion direction H when the locking ridge 12 is viewed two-dimensionally is set to about 60 degrees.

  Therefore, by making the inclination angle α of the locking ridge 12 different from the inclination angle θ of the twisting groove 11 of the rope 2, the locking ridge 12 is locked to the twisting groove 11 when the rope 2 is pressed. However, the entire area of the locking ridge 12 does not bite into the twisting groove 11 of the rope 2 and is locked, and there is always a part that can be locked even in the part that is not the twisting groove 11 (twisted mountain 10). Yes.

  That is, it is configured such that the operation around the screw of the rope 2 (the operation in which the rope 2 slides while rotating with respect to the pressure contact surface 6) that may occur due to the engagement of the locking protrusion 12 with the twist groove 11 does not occur. Only the high rope 2 fixing action equivalent to that of the conventional product can be obtained by engaging the locking protrusion 12 into the twisting groove 11 of the rope 2, and the rope 2 is clamped and fixed extremely firmly. It is configured.

  It is also possible to set the inclination angle α of each locking protrusion 12 with respect to the rope insertion direction H to an angle smaller than the inclination angle θ of the twisted groove 11 with respect to the length direction of the rope 2. The entire region of 12 can be configured not to bite into the twisting groove 11 of the rope 2 and to be locked. However, if the inclination angle of the locking ridge 12 is smaller than the inclination angle of the twisting groove 11, the rope 2 is connected to the rope insertion direction H. In some cases, the twist direction of the twisted groove 11 when the rope 2 is stretched in the reverse direction and the inclination direction of the locking ridge 12 may coincide with each other and the screw rotation operation may occur. It has been confirmed by a prototype experiment.

  In addition, setting the inclination angle α of each locking ridge 12 with respect to the rope insertion direction H to an angle larger than 90 degrees allows each locking ridge 12 to be locked to the ridge 11 of the rope 2. This is not preferable because it causes a decrease in the fixing strength of the rope 2.

  Therefore, in this embodiment, the inclination angle α of the locking protrusion 12 with respect to the rope insertion direction H is larger than the inclination angle θ (50 degrees) of the twist groove 11 with respect to the length direction of the rope 2 and 90 °. The angle is set to a smaller angle (preferably about 60 degrees) so that the above-described high rope 2 fixing strength can be obtained.

  Note that the present invention is not limited to this embodiment, and the specific configuration of each component can be designed as appropriate.

It is a perspective view which shows a present Example. It is explanatory side sectional drawing which shows the state which penetrated the rope in the rope penetration gap of the present Example. It is comparative explanatory drawing of a present Example and a prior art example, Comprising: It is an expanded plane sectional view in the state which inserted the rope in the rope insertion gap. It is explanatory side sectional drawing which shows the state which clamped and fixed the rope penetrated by the rope penetration gap of a present Example. It is comparative explanatory drawing of a present Example and a prior art example, Comprising: It is an expanded plane sectional view in the state which clamped and fixed the rope penetrated to the rope penetration gap. It is the elements on larger scale which showed a mode that the inclination angle of the latching protrusion of the rope press-contact body and the inclination angle of the twisting groove | channel of a rope differ of a present Example. It is explanatory drawing which shows the use condition of a present Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Board | substrate 2 Rope 3 Fixing tool main body 4 Rope receiving part 5 Rope press-contact body 6 Press-contact surface 7 Rope insertion gap 8 Elastic body 9 Clamping part
10 Twist Mountain
11 Twist groove
12 Locking ridges A Rope fixture H Rope insertion direction L1 Interval α Inclination angle θ Inclination angle

Claims (2)

  A fixing body that can insert a rope between the two boards by arranging two boards facing each other at a predetermined interval is configured, and the rope is received between the two boards that constitute the fixing body. A rope receiving part to be supported is provided, and a rope pressure contact body is rotatably provided between the two substrates so as to face the rope reception part, and a rope insertion gap between the rope reception part and the rope pressure contact body is provided. The rope press-connecting body is configured such that the rope press-contacting body gradually narrows as the rope press-contacting body rotates. Provided with an elastic body that urges the rotation direction to become narrower and resists the rotation direction that becomes wider, and rotates the rope pressure contact body in a direction in which the rope insertion gap widens against the urging force of the elastic body The rope is inserted into this rope insertion gap. In addition, when the rope is pulled in a direction opposite to the rope insertion direction, the rope pressure contact body contacting the rope rotates in the direction of narrowing the rope insertion gap, and the pressure contact surface of the rope pressure contact body is A rope fixture that clamps and fixes a rope received and supported by a rope receiving portion so that it cannot be pulled out, and the distance between the two substrates constituting the fixture body is determined by the diameter of the rope. When setting the gap larger than a certain 16 mm and smaller than 22 mm, the rope inserted between the two substrates and received and supported by the rope receiving portion is clamped and fixed by the pressure contact surface of the rope pressure contact body. In addition, it is configured so that the two substrates suppress that the sandwiched portion of the rope is crushed and deformed and expanded by the pressure contact, and the twist groove between the rope ridges is formed on the pressure contact surface of the rope pressure contact body. Inclination direction along The locking ridges having a length are formed in a plurality of juxtaposed states at intervals in the rope insertion direction, and the inclination angle of each locking ridge with respect to the rope insertion direction is determined by the length direction of the rope. A rope fixing tool characterized in that the rope fixing tool is set at an angle larger than the inclination angle of the twisted groove and smaller than 90 degrees.   The rope fixture according to claim 1, wherein a distance between the two substrates constituting the fixture body is set to be larger than 16 mm and smaller than 20 mm which is a diameter dimension of the rope.

Images