WO2022137628A1 - 索体引留金具 - Google Patents

索体引留金具 Download PDF

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Publication number
WO2022137628A1
WO2022137628A1 PCT/JP2021/028745 JP2021028745W WO2022137628A1 WO 2022137628 A1 WO2022137628 A1 WO 2022137628A1 JP 2021028745 W JP2021028745 W JP 2021028745W WO 2022137628 A1 WO2022137628 A1 WO 2022137628A1
Authority
WO
WIPO (PCT)
Prior art keywords
wedge
driving
cord
metal fitting
inclined surface
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2021/028745
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
容輔 浦田
仁 平井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tokyo Rope Manufacturing Co Ltd
Original Assignee
Tokyo Rope Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tokyo Rope Manufacturing Co Ltd filed Critical Tokyo Rope Manufacturing Co Ltd
Priority to CN202180005477.7A priority Critical patent/CN114981566A/zh
Priority to JP2021574280A priority patent/JP7669298B2/ja
Priority to KR1020227009079A priority patent/KR20230125122A/ko
Publication of WO2022137628A1 publication Critical patent/WO2022137628A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B2/00—Friction-grip releasable fastenings
    • F16B2/02—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
    • F16B2/14—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening using wedges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
    • F16B7/04—Clamping or clipping connections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G11/00—Means for fastening cables or ropes to one another or to other objects; Caps or sleeves for fixing on cables or ropes
    • F16G11/04—Means for fastening cables or ropes to one another or to other objects; Caps or sleeves for fixing on cables or ropes with wedging action, e.g. friction clamps

Definitions

  • the present invention relates to a cord retaining metal fitting for fastening a cord such as a wire rope.
  • Patent Document 1 discloses a technique relating to a metal fitting (wedge clamp) using such a rust.
  • the wedge clamp disclosed in Patent Document 1 is excellent in workability, high fixing efficiency, and very excellent.
  • the wedge clamp disclosed in Patent Document 1 suppresses slipping between the cord and the wedge member when tension is applied to the cord, and these are integrated. It is configured so that it can penetrate into the restraining member (cylindrical member) to obtain a higher fastening force, and has an excellent fastening force.
  • a fitting member having a tubular body portion through which the cord is inserted, and a driving member having a wedge-shaped portion inserted into the tubular body portion and abutting against the cord in the tubular body portion.
  • a cord retaining metal fitting characterized in that the inclined surface of the wedge-shaped portion has an inclination on an inclined axis along the driving direction of the driving member.
  • (Structure 2) A fitting member having a tubular body portion through which the cord is inserted, and a driving member having a wedge-shaped portion inserted into the tubular body portion and abutting against the cord in the tubular body portion.
  • the direction along the thickness of the driving member orthogonal to the driving direction is the thickness direction
  • the driving direction and the direction orthogonal to the thickness direction are the width direction.
  • the cord retaining metal fitting is characterized in that the inclined surface of the wedge-shaped portion has an inclined component in the driving direction and an inclined component in the width direction.
  • the cord retaining fitting of the present invention it is possible to provide a cord retaining bracket having a higher fastening force due to a wedge shape that has not existed in the past.
  • the figure which shows the driving member of the cord retaining metal fitting of embodiment The figure which shows the cord retaining metal fitting of embodiment
  • the figure which shows the use state of the cord retaining metal fitting of embodiment Explanatory drawing about the wedge-shaped inclined surface of the cord retaining metal fitting
  • Explanatory drawing about the wedge-shaped inclined surface of the cord retaining metal fitting The figure which shows another example of the driving member
  • FIG. 1 is a diagram showing a fitting member of the cord retaining metal fitting according to the embodiment of the present invention
  • FIG. 2 is a diagram showing a driving member.
  • FIGS. 3 and 4 are views showing the cord retaining metal fittings of the present embodiment.
  • the cord retaining metal fitting 1 is A fitting member 11 having a tubular body portion through which a cord is inserted, and a fitting member 11 A driving member 12 having a wedge-shaped portion to be inserted into the tubular body portion of the fitting member 11 and abutting against the cord 2 in the tubular body portion.
  • the terminal of the cord 2 such as a wire rope.
  • the wedge-shaped portion of the driving member 12 and the cord 2 are inserted into the tubular body portion of the fitting member 11, and the driving member 12 is driven, thereby being based on the wedge shape of the driving member 12.
  • the cord 2 is restrained by the pressure generated.
  • the front side (left side in FIG. 3) of the driving member 12 in the driving direction (left direction in FIG. 3) is referred to as “tip side”, and the opposite (right side in FIG. 3) is referred to as “rear end side”.
  • the direction along the thickness of the driving member 12 orthogonal to the driving direction (vertical direction in FIG. 3) is the thickness direction
  • the direction orthogonal to the driving direction and the thickness direction is the width direction.
  • the width direction is the width direction.
  • FIG. 1A and 1B are views showing a fitting member 11, FIG. 1A is a top view (viewed from above in the thickness direction), FIG. 1B is a side view (viewed from the width direction), and FIG. (C) is a rear view (a view seen from the rear side).
  • the fitting member 11 in the present embodiment is basically a cylindrical member, and a through hole 11H through which the driving member 12 and the cord 2 are inserted is formed inside the fitting member 11.
  • contact surfaces 113a and 113b that are in contact with the cord 2 on two surfaces are formed on the lower side of the inside of the through hole 11H in the thickness direction, thereby forming a V-shaped groove. Is formed in.
  • the function of restraining the cord 2 by the two surfaces of the V-shaped groove is the same as that described in Patent Document 1, and detailed description thereof will be omitted here. It should be noted that the point that slipping with the cord 2 is prevented by setting the angle between the two surfaces of the V-shaped groove to a predetermined angle is as described in Patent Document 1, and it is very important to do so. Although suitable, it is not essential for the application of the present invention.
  • the inner upper surface (upper side in the thickness direction) of the through hole 11H has a first inclined surface 11T1 having a first inclination angle (relative angle with the bottom surface of the through hole 11H).
  • the second inclined surface 11T2 is a surface that engages with the second inclined surface 12T2 of the driving member 12 when the driving member 12 described below is inserted.
  • the first inclined surface 11T1 is a surface that engages with the first inclined surface 12T1 of the driving member 12 when the driving member 12 is fitted.
  • the second inclined surface 11T2 and the first inclined surface 11T1 have an inclination corresponding to the inclination of the second inclined surface 12T2 and the first inclined surface 12T1 of the driving member 12 described below, respectively.
  • a meat stealing 111 for the purpose of weight reduction is formed on the upper surface (upper side in the thickness direction) of the fitting member 11. As can be understood from FIG. 1, the meat stealing 111 is formed so that the amount of scraping increases toward the front side in the side view. Further, on both side surfaces (both sides in the width direction), engaging portions 112 for engaging the jig used when driving the driving member 12 are formed. Since the jig does not have a direct relationship with the present invention, the description thereof is omitted here.
  • FIG. 2A and 2B are views showing the driving member 12, FIG. 2A is a top view, FIG. 2B is a side view, and FIG. 2C is a rear view.
  • the driving member 12 is a member having a wedge shape formed by the first inclined surface 12T1. Further, a second inclined surface 12T2 having an inclination angle larger than that of the first inclined surface 12T1 is provided on the tip end side thereof.
  • the inclination angle of the first inclined surface 12T1 and the second inclined surface 12T2 is the relative angle of the first inclined surface 12T1 and the second inclined surface 12T2 with respect to the bottom surface of the driving member 12, that is, the angle of the wedge shape. Is.
  • the first inclined surface 12T1 (and the second inclined surface 12T2) is formed to have an inclined component in the driving direction and an inclined component in the width direction.
  • the first inclined surface 12T1 (and the second inclined surface 12T2) has an inclination on the inclined axis along the driving direction in addition to the inclination on the inclined axis along the width direction.
  • FIG. 3 is a side view showing a usage state of the cord retaining metal fitting 1 (before driving the driving member 12), and FIG. 4 shows a usage state of the cord retaining metal fitting 1 (state in which the driving member 12 is driven). It is a rear view which shows.
  • the cord 2 is inserted into the tubular body portion of the fitting member 11, and then the driving member 12 is driven into the tubular body portion, so that the driving member 12 is driven into the tubular body portion, based on the wedge shape of the driving member 12.
  • the cord 2 is restrained by the generated pressure.
  • a second inclined surface 12T2 having a larger inclination angle is formed on the tip end side of the driving member 12, and the fitting member 11 also has a corresponding second inclined surface 11T2. Is formed, so that the workability at the time of driving the driving member 12 is excellent.
  • FIG. 5 is an explanatory view of a wedge-shaped inclined surface of the driving member 12.
  • FIG. 5A is a top view of the wedge shape of the driving member 12, and
  • FIG. 5B is a diagram showing the inclination angle of the wedge shape in the driving direction.
  • the contents of each symbol in FIG. 5 are as follows. l: Length of wedge-shaped inclined surface in driving direction ⁇ : Inclination angle of wedge-shaped inclined surface in driving direction ⁇ : Inclination angle of wedge-shaped inclined surface in width direction ⁇ : Pushing in for driving member 12
  • Apparent tilt angle when viewed ⁇ 0 Apparent tilt angle when the tilt angle ⁇ is viewed from the direction along the other division component angle (direction B in FIG. 5).
  • ⁇ has the following relational expression.
  • a vertical load W (hereinafter referred to as “fastening force W”) that causes a fastening force to be generated in the wedge (driving member) when a pushing force F for driving the wedge is applied will be described. ..
  • the contents of each symbol in FIG. 6 are as follows.
  • N Reaction force generated on the wedge-shaped inclined surface when a pushing force F is applied
  • P Horizontal component of resistance
  • N W Vertical component of resistance W (fastening force)
  • W has the following relational expression.
  • the cord retaining metal fitting 1 of the present embodiment a higher fastening force can be obtained due to the wedge shape which has not been conventionally provided.
  • the conventional wedge has only an inclination component in the driving direction, that is, has only an inclination along the inclination axis along the width direction.
  • the cord retaining metal fitting 1 of the present embodiment is formed to have an inclined component in the width direction in addition to the inclined component in the driving direction, that is, on an inclined axis along the driving direction. It also has an inclination of. With such an original wedge shape, it is possible to obtain a higher fastening force with respect to the pushing force when driving the wedge.
  • FIG. 7 is a diagram showing another example of the driving member.
  • the driving member 12'in FIG. 7 has an uneven portion 122 formed at a position where it comes into contact with the cord 2. As a result, the occurrence of slippage between the driving member 12'and the cord 2 is suppressed.
  • the fitting member 11 has a cylindrical shape as an example, but the present invention is not limited to this.
  • it may be a square columnar shape having a through hole through which a driving member or a cord is inserted.
  • the fitting member is formed as a tubular body as a whole, but the present invention is not limited to this, and the fitting member has a tubular body portion.
  • the fitting member may have a structure other than the tubular body.
  • the driving member has a wedge shape as a whole as an example, but the present invention is not limited to this, and the driving member may have a wedge-shaped portion as long as the driving member has a wedge shape.
  • the member may have a configuration other than the wedge-shaped portion.
  • the contact surface (V-shaped groove) in contact with the cord 2 is formed on the fitting member 11 side as an example, but the V-shaped groove is in contact with the cord 2 of the driving member. It may be formed at a contact point.
  • FIG. 8 is a diagram showing the cord retaining metal fitting 1 of the embodiment.
  • the cord retaining fitting of the embodiment is a cord retaining fitting having the configuration described in the above embodiment, and is formed of S45C (carbon steel) with the dimensions (unit: mm) shown in FIG. 8 (a) and 8 (b) show the fitting member 11, and FIGS. 8 (c) to 8 (e) show the driving member 12.
  • a tensile test was conducted on the cord retaining metal fitting 1 of the example to verify the fixing efficiency using a high-strength cable raid rope of ⁇ 22 having a load capacity of 304.0 kN.
  • the cord retaining metal fitting 1 is fastened to one end side of the wire rope 2, and the other end side is cast into a mold together with the molten alloy to form the terminal portion 3. It was formed and pulled by bringing the rope retaining metal fittings 1 and the terminal portion 3 provided at both ends into contact with the locking die 4.
  • the wire rope 2 itself is loosely fitted to the locking die 4 (not fixed to the locking die 4), and the respective end faces of the cord retaining metal fitting 1 and the terminal portion 3 abut on the locking die 4.
  • 10 and 11 are photographs showing the state of the experiment, FIG. 10 is a photograph showing before tensioning, and FIG. 11 is a photograph showing after stretching (after breaking).
  • FIG. 12 is a diagram (dimension unit is mm) showing a cord retaining metal fitting 100 as a comparative example.
  • the wedge-shaped member (wedge body 102A, wedge body 102B) and the cord body are inserted into the fitting member 101 of the tubular body, and the cord body 2 is generated by the pressure generated when the wedge is driven. It is the same as the cord retaining metal fitting 1 of the embodiment in that it restrains.
  • the inclined surface of the wedge has only an inclined component in the driving direction as before.
  • the cord retaining metal fitting 100 is provided with a two-stage wedge body of a wedge body 102A and a wedge body 102B, so that the striking force required for driving is reduced and the size of the metal fitting is reduced. be.
  • Fasteners using wedges utilize the tightening force generated by driving the wedge. That is, a tightening force is obtained by driving a thicker portion based on the wedge shape. For example, for a relatively flexible rope, it is necessary to drive a thicker part in order to obtain a high tightening force. In order to improve this workability, it is conceivable to increase the inclination angle of the wedge shape. It is possible to drive a thicker part for a smaller driving distance. However, in this case, although the driving distance is shortened, the striking force required for driving is increased, and the workability may be lowered on the contrary.
  • the striking force required for driving is small, but the driving distance required when trying to drive a thicker portion becomes long.
  • the long driving distance means that it is necessary to increase the size of the wedge, and the metal fittings become long.
  • the striking force required for driving is reduced, and the size of the metal fitting is reduced.
  • the retaining metal fitting 100 is provided.
  • a tensile test was conducted on the cord retaining metal fitting 100 of the comparative example to verify the fixing efficiency using a high-strength cable raid rope of ⁇ 22 having a load capacity of 304.0 kN.
  • the conditions are the same as those of the tensile test of the example (the number of tests is only once) except that the cord retaining metal fitting 100 of the comparative example is used instead of the cord retaining metal fitting 1 of the example.
  • the breaking load was 280.0 kN and the fixing efficiency was 92.1%.
  • the cord retaining metal fitting 100 of the comparative example is a metal fitting aimed at miniaturization as described above, but as is clear from the comparison between FIGS. 8 and 12, the cord retaining metal fitting 1 of the embodiment is further miniaturized. Has been done.
  • the cord retaining metal fitting 1 of the embodiment has an original wedge shape having an inclined component in the width direction in addition to an inclined component in the driving direction, whereby a high fastening force can be obtained. Although it is a small metal fitting, it has a fastening force equal to or higher than that of the comparative example (larger metal fitting).

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Clamps And Clips (AREA)
  • Non-Insulated Conductors (AREA)
  • Insulated Conductors (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
PCT/JP2021/028745 2020-12-25 2021-08-03 索体引留金具 Ceased WO2022137628A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN202180005477.7A CN114981566A (zh) 2020-12-25 2021-08-03 索体阻留配件
JP2021574280A JP7669298B2 (ja) 2020-12-25 2021-08-03 索体引留金具
KR1020227009079A KR20230125122A (ko) 2020-12-25 2021-08-03 삭체 고정 지그

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2020-216538 2020-12-25
JP2020216538 2020-12-25

Publications (1)

Publication Number Publication Date
WO2022137628A1 true WO2022137628A1 (ja) 2022-06-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2021/028745 Ceased WO2022137628A1 (ja) 2020-12-25 2021-08-03 索体引留金具

Country Status (5)

Country Link
JP (1) JP7669298B2 (https=)
KR (1) KR20230125122A (https=)
CN (1) CN114981566A (https=)
TW (1) TWI813014B (https=)
WO (1) WO2022137628A1 (https=)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4504034A (en) * 1981-05-08 1985-03-12 Amp Incorporated Device for use with high current carrying electrical cable
WO2018167849A1 (ja) * 2017-03-14 2018-09-20 東京製綱株式会社 撚り線くさび

Family Cites Families (12)

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Publication number Priority date Publication date Assignee Title
JPS609611U (ja) 1983-06-30 1985-01-23 ピ−・エス・コンクリ−ト株式会社 硬練りコンクリ−ト投入機
JPS63289355A (ja) * 1987-05-21 1988-11-25 P S Concrete Kk Ｆｒｐ製ロ−プの緊張定着方法
RU2073145C1 (ru) * 1992-12-28 1997-02-10 Вячеслав Васильевич Жуков Замок для каната
CA2295345C (en) * 1999-03-17 2001-11-20 Peter Ouimet Connecting device for the cables around a log bundle
JP2006220717A (ja) * 2005-02-08 2006-08-24 Hosiden Corp 光ファイバ接続部品およびこれを使用した光ファイバ接続器
US7766702B2 (en) 2006-07-26 2010-08-03 Burndy Technology Llc Conductor connection
CN201301927Y (zh) * 2008-11-28 2009-09-02 孙春廷 安全卡绳器
MY179110A (en) * 2013-02-28 2020-10-28 Fujikura Ltd Optical fiber splicing tool and optical fiber splicing method
CN203497905U (zh) * 2013-08-31 2014-03-26 南京梅山冶金发展有限公司 一种矿山提升系统楔形卡的井筒安全脱芯装置
JP5970006B2 (ja) * 2014-01-30 2016-08-17 昭和電線ケーブルシステム株式会社 電力ケーブルの接続部形成装置及び電力ケーブルの接続部形成方法
CN107430248B (zh) * 2015-04-14 2019-06-11 株式会社藤仓 缆线外皮把持部件、光纤连接单元、光纤连接单元套件以及外皮把持部件拆卸工具
JP6077158B1 (ja) * 2016-03-28 2017-02-08 神鋼鋼線工業株式会社 把持装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4504034A (en) * 1981-05-08 1985-03-12 Amp Incorporated Device for use with high current carrying electrical cable
WO2018167849A1 (ja) * 2017-03-14 2018-09-20 東京製綱株式会社 撚り線くさび

Also Published As

Publication number Publication date
CN114981566A (zh) 2022-08-30
KR20230125122A (ko) 2023-08-29
JPWO2022137628A1 (https=) 2022-06-30
JP7669298B2 (ja) 2025-04-28
TW202226694A (zh) 2022-07-01
TWI813014B (zh) 2023-08-21

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