CN203905504U - Terminal fixing structure of compound linear body - Google Patents
Terminal fixing structure of compound linear body Download PDFInfo
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- CN203905504U CN203905504U CN201420234740.7U CN201420234740U CN203905504U CN 203905504 U CN203905504 U CN 203905504U CN 201420234740 U CN201420234740 U CN 201420234740U CN 203905504 U CN203905504 U CN 203905504U
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- compound thread
- wedge
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- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 11
- 239000004917 carbon fiber Substances 0.000 claims abstract description 11
- 230000003139 buffering effect Effects 0.000 claims description 70
- 239000002131 composite material Substances 0.000 claims description 69
- 239000000835 fiber Substances 0.000 claims description 33
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- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 11
- 239000011151 fibre-reinforced plastic Substances 0.000 description 11
- 229920002978 Vinylon Polymers 0.000 description 7
- 229920006305 unsaturated polyester Polymers 0.000 description 6
- 229920006337 unsaturated polyester resin Polymers 0.000 description 6
- 238000007906 compression Methods 0.000 description 5
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- 229910000831 Steel Inorganic materials 0.000 description 4
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 4
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- 238000004804 winding Methods 0.000 description 4
- 238000009954 braiding Methods 0.000 description 3
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- 229910052725 zinc Inorganic materials 0.000 description 2
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- Ropes Or Cables (AREA)
Abstract
The utility model provides a terminal fixing structure of a compound linear body. The terminal fixing structure comprises the compound linear body (20) formed by compounding carbon fibers by using a resin material and formed in a shape of stranded wires, a compound buffer material (30) for covering the compound linear body (20), a wedge body (40) formed in a cylinder form, with increased outer diameter from the end of one side suffered from the tension to the end of the other side of the fixed side and embedded with the compound buffer material (30) in a hollow part thereof, and a sleeve (50) arranged at the peripheral side of the wedge body (40), embedded with the shape of the wedge body and having a conical hollow internal structure whose diameter is increased from the end of one side suffered from the tension to the end of the other side of the fixed side, wherein the terminal fixing structure prevents the disconnection, and performs the simple fixing operation through a structure of keeping full frictional force.
Description
Technical field
The utility model relate to a kind of in the field such as building, bridge the extremity fixing structure for end fixed compound thread like body during by compound thread like body stretch-draw for structure reinforcement.
Background technology
What instead the material of PC steel strand was known has compound thread like body.Compound thread like body is, by the heat reactive resin with epoxy resin etc., the continuous fiber of carbon fiber etc. is implemented to Composite, with 1 × 7 moulding such as shape such as twisted wire such as grade.Identical with PC steel strand, compound thread like body has high tensile and high elastic coefficient, and has the features such as lightweight and non-corrosive.Utilize these features in the field such as building, bridge, to be used as the repairing cable of existing bridge or reinforcement stretch-draw material, post stretching (post-tension) the formula bridge crossbeam supporting material etc. of prestressed concrete beam or stake.In the time that compound thread like body is used for this purposes, for the compound thread like body of stretch-draw, need to be used for keeping the end fixed component at its both ends.
As extremity fixing structure, resin is strengthened the technology (for example, Japan's patent Publication Unexamined Patent 8-237840 communique) of carbon fiber as the anchor end of the electric wire of core by known having.That is, the buffering sleeve of cylindric two-part structure is used in the anchor end of twisted conductor, wherein, described buffering sleeve is by forming taking zinc etc. as the metal material of principal component, and side face has the snap-latch surface that strengthens the peripheral snap of carbon fiber at resin therein.Wherein, form in the following way anchor end: resin being strengthened to carbon fiber in stiffener stranded conduction forms with wire around it electric wire, between stranded layer with wire, buffering sleeve is set at tension member and wire, in these outsides, metal sleeve is installed, and compression fixing metal sleeve and form anchor end.In this technology, buffering sleeve therein side face has the snap-latch surface that strengthens the peripheral snap of carbon fiber with resin, and be two-part structure, therefore be easily installed on resin and strengthen carbon fiber, and with cylindric moulding, therefore the compressive force while stopping compressed metal sleeve, prevents that resin from strengthening the effect of crushing of carbon fiber or damaged equivalent damage thereby have.
In addition, as the extremity fixing structure of compound thread like body, be known that: coated Anti-skid sheet on compound thread like body, and on Anti-skid sheet the coated braid (braid) being made of metal, and clamp this part fixing structure (for example, No. 5426678 communique of Japan's patent) by chock.Wherein, the external force producing on chock during with the compound thread like body of stretch-draw, make the fastening compound thread like body of chock, now, be positioned at the Anti-skid sheet of chock bottom and the jog of braid and compound thread like body correspondingly produces distortion, and by the cushioning effect based on this distortion and the frictional force based on Anti-skid sheet, there is the function that does not produce the damage based on shearing and keep compound thread like body under the state of high stretching force.
Utility model content
The problem that utility model will solve
In the extremity fixing structure of above-mentioned compound thread like body, there are the following problems., in the prior art, in order to form the anchor end of the electric wire that stranded conduction forms with wire, need to be used for carrying out the mechanical device of compression process.If use mechanical device can cause cost to uprise.In addition, for the two-part buffering sleeve shown in above-mentioned technology, prevent the damage of crushing of carbon fiber core in order to stop compressive force, need to adopt taking zinc etc. as the metal of principal component and manufacture.
In addition, while use when overlapping multiple Anti-skid sheets in compound thread like body, need stacked multiple Anti-skid sheets in the preparatory stage.In addition, in the time that two strip Anti-skid sheets preparing are in the above described manner arranged on to compound thread like body, make the direction of Anti-skid sheet and the axially parallel of compound thread like body, and need to keep equably the interval of two Anti-skid sheets and install, therefore in the time of operation, need a twist of the wrist and time.
At this, the purpose of this utility model is, provide the extremity fixing structure of following a kind of compound thread like body: by without with using composite buffering material to keep the structure of sufficient frictional force for the mechanical device compressing, can be fixed simply thus operation.
Solve the method for problem
The extremity fixing structure of compound thread like body of the present utility model, is characterized in that, possesses: compound thread like body, and it makes continuous fiber Composite with resin material and is shaped with twisted wire shape; Padded coaming, it is for covering this compound thread like body; Wedge, it forms with tubular, and the end side of its external diameter from a side end of under tension to fixation side expand, and empty portion is chimeric therein a described padded coaming; And sleeve, it is arranged at the outer circumferential side of this wedge, and has the internal construction of diameter towards the coniform hollow of the end side expansion of fixation side.
According to the extremity fixing structure of compound thread like body of the present utility model, described continuous fiber is carbon fiber, and described composite buffering material is manufactured by resin material.
According to the extremity fixing structure of compound thread like body of the present utility model, described compound thread like body is by fibre-coated, and described fiber is wound around to the direction intersecting with described pulling force.
According to the extremity fixing structure of compound thread like body of the present utility model, between described composite buffering material and described wedge, dispose the braided members that braided metal line forms.
Brief description of the drawings
Fig. 1 is the sectional view that the fixed structure of the compound thread like body of embodiment of the present utility model is shown.
Fig. 2 illustrates to be assembled in the compound thread like body of described fixed structure and the stereogram of composite buffering material.
Fig. 3 is the exploded perspective view of described compound thread like body and composite buffering material.
Fig. 4 is the sectional view of described composite buffering material.
Fig. 5 is the front view that the end face of described composite buffering material is shown.
Fig. 6 is the front view that the composite buffering material that braided members is installed of variation is shown.
Detailed description of the invention
[for implementing the preferred plan of utility model]
Below, with reference to the accompanying drawings embodiment of the present utility model is described.
Fig. 1 is the sectional view that the fixed structure 10 of the compound thread like body of the utility model embodiment is shown; Fig. 2 illustrates to be assembled in the compound thread like body 20 of described fixed structure 10 and the figure of composite buffering material 30; Fig. 3 is the exploded perspective view of described compound thread like body 20 and composite buffering material 30; Fig. 4 is the sectional view of described composite buffering material 30; Fig. 5 is the front view that the end face of described composite buffering material 30 is shown.In this manual, axially refer to the bearing of trend of compound thread like body 20.
The fixed structure 10 of compound thread like body possesses: compound thread like body 20, and it makes continuous fiber Composite with resin material, thereby is shaped with twisted wire shape; Composite buffering material 30, it is for covering this compound thread like body 20; Wedge 40, it is for covering this composite buffering material 30; Sleeve 50, it is arranged at the outer circumferential side of this wedge 40.In addition, the left of pulling force from Fig. 1 applies, right-hand fixing.
Compound thread like body 20 has had the structure of many pile foundations silk 21 stranded.Basis silk 21 is using carbon fiber (continuous fiber) and matrix resin (representative is the heat reactive resins such as epoxy resin) as main material, and is formed with around this basis silk 21 and is wound around the clad structure that fiber 22 forms on a top layer, basis for every pile foundation silk 21., the surface of each basis silk 21 of compound thread like body 20 has and is wound around and that covered fiber 22 forms is trickle concavo-convex.
Have external diameter and be the compound thread like body 20 of 1 × 7 the lay configuration of 15.2mm, basis silk 21 is using a core basis silk 21a as center, and around it stranded six roots of sensation side group plinth silk 21b and forming.The diameter of core basis silk 21a and side group plinth silk 21b is 5.1mm.The angle that core basis silk 21a and side group plinth silk 21b form, angle of twist is representative is 9 °, the preferable range of this angle of twist is below 18 °.Be wound around and covered fiber on the surface of these each basis silks in advance.The diameter that is wound around the basis silk 21 before fiber is 4.7mm, and to be wound around equably approximately 1,200 diameter with the winding pitch of 5.5mm be in the above the polyester multifilament of 33 microns.Basic filament diameter after winding is 5.1mm.It is now 70 ° with respect to the lapping angle of the fiber of basis silk direction.The fibre diameter that is wound around is representative is 33 microns, but preferable range is 10-50 micron.The winding angle that can at random adjust fiber according to the radical of fiber and winding pitch, representative is 70 °, but preferable range is 40-80 °.
For composite buffering material 30, manufactured by the fiber-reinforced plastic (FRP) at fibers such as axially-aligned vinylon or polyester, and with cylindric formation.There is the jog 30a chimeric with the profile of compound thread like body 20 in inner side.This jog 30a have corresponding with the profile of basis silk 21 that forms compound thread like body 20 concavo-convex and with corresponding trickle concavo-convex of the shape of fiber 22 that is wrapped in each basis silk 21.By these jogs 30a, can between compound thread like body 20 and composite buffering material 30, obtain high frictional force.
The axial length of composite buffering material 30 forms in the mode of being longer than a little wedge 40.Composite buffering material is two-part structure (patrix 31 and counterdie 32), and can be arranged on the optional position of compound thread like body 20, covers the whole circumference of compound thread like body 20, and have circular profile after installing.
Composite buffering material 30 is shaped as follows.Be, that the compound thread like body 20 of 1 × 7 lay configuration of 15.2mm is as core using thering is above-mentioned external diameter., as the compound thread like body 20 of core be identical material and identical structure as the compound thread like body 20 of fixed object.
Around compound thread like body 20, the pre-configured vinylon fiber bundle that has flooded unsaturated polyester resin, by this boundling body, to be directed into internal diameter be 18mm, the length mould that is 1.5m and be drawn into type.The temperature of mould is 150 DEG C, and drawing speed is 10cm/min.The yarn (yarn) that the ultimate fibre that vinylon fiber will be 14 μ m by 1,000 diameter forms, as base unit, and has used line 41, that form with ten these fiber doublings.It is the material having coordinated in unsaturated polyester (UP) as the organic peroxide of curing catalysts that unsaturated polyester (UP) has used at M-phthalic acid.With which, obtained: there is the core of compound thread like body at center, and around it by the fiber-reinforced plastic layer of the unsaturated polyester resin of vinylon fiber and the formed body of the external diameter 18mm forming.The fiber volume fraction of fiber-reinforced plastic layer is about 60%.
This formed body is cut into the length of 170mm, be longitudinally provided with gap in the fiber-reinforced plastic layer of 0 circumferential degree of its section and 180 degree positions.Then, peel fiber-reinforced plastic layer off from the material cores that is positioned at its center, be separated into thus material cores and two-part fiber-reinforced plastic layer.For the fiber-reinforced plastic layer obtaining with which, outside is two parts cylindraceous, and inner side has the concaveconvex shape being described below.
,, at the inner surface of composite buffering material 30, particularly there are following two kinds of concaveconvex shapes.Corresponding with the profile of basis silk 21 is concavo-convex, and diameter is 5.1mm and is the circular arc of 18 ° of following angles with core basis silk 21a.In addition, based on fiber trickle concavo-convex that is wound around and is coated on each basis silk 21, diameter is 10-50 micron and is the circular arc of the angle of 40-80 ° with basis silk direction.
Composite buffering material 30 is, at axially-aligned vinylon fiber the fiber-reinforced plastic using unsaturated polyester resin as matrix resin, compared with the independent solidfied material of unsaturated polyester resin, axial intensity and modulus of elasticity increase.; the hot strength of the solidfied material of unsaturated polyester resin monomer and coefficient of elasticity are respectively 40MPa, 3.1GPa; but by making the hot strength of composite buffering material 30 and coefficient of elasticity be formed as respectively 0.76GPa, 16GPa with vinylon fiber reinforcement unsaturated polyester (UP), be about respectively 19 times and 5 times of resin monomer.By improve intensity and the coefficient of elasticity of composite buffering material 30 with which, can obtain being applicable to the mechanical property of fixing high strength, elastomeric compound thread like body 20.Because the jog 30a of the inner surface of composite buffering material 30 is according to the part of the structure fabrication of compound thread like body 20, therefore, if be arranged on compound thread like body 20, compound thread like body 20 is with concavo-convex consistent, thereby composite buffering material 30 is filled in the surperficial concavo-convex of lay configuration based on compound thread like body 20.
Wedge 40 for example has following structure: form with two-part tubular, and its external diameter is from the end of a side to the end expanding of opposite side, empty portion is chimeric therein a described composite buffering material 30.Wedge 40 also can be three part-structures or four part-structures.The profile of wedge 40 is coniform, and inner side hollows out with circle, has screw-shaped stria at inner surface.This screw-shaped groove plays the effect of the friction of the outer peripheral face that improves chock and composite buffering material 30.
Sleeve 50 is manufactured by metal material, and has the internal construction of the coniform hollow that internal diameter expands to end side from the end of a side, forms with the tubular with fixed outer diameter.
The fixed structure 10 of the compound thread like body forming with which, as follows assembling., the compound thread like body of two-part composite buffering material 30 is coated on to compound thread like body 20 with the jog 30a of the inner peripheral surface of composite buffering material 30 and the concavo-convex mode of aiming at of compound thread like body 20.Then, coated two-part wedge 40, and then at its periphery installing sleeve 50.The length of wedge 40 is that 155mm is shorter a little than composite buffering material 30, and wedge 40 keeps compound thread like body 20 via composite buffering material 30, thereby wedge 40 can directly not contact with compound thread like body 20.The length of sleeve 50 is 163mm.
The compound thread like body 20 that this fixed structure 10 is installed has been carried out to tension test, and its result is not fracture under the tensile load of 280kN.The regulation fracture load of this compound thread like body 20 is 270kN, confirms thus this compound thread like body and has sufficient constant intensity.
According to the extremity fixing structure 10 of the compound thread like body forming with which, when being stretched, compound thread like body produces following reaction.That is, by the friction via composite buffering material 30, make compound thread like body 20 and wedge 40 form one, therefore, if stretch compound thread like body 20, wedge 40 is drawn into sleeve 50 simultaneously.If wedge 40 is drawn into sleeve 50, wedge 40 is by the fastening compound thread like body 20 of its gradient.Fastening by this, the frictional force of wedge 40 and composite buffering material 30 and composite buffering material 30 and compound thread like body 20 further increases, thereby makes that three's is integrated more firm.
And, at the inner surface of the composite buffering material 30 that compound thread like body 20 is obtained as material cores and by said method, there is the trickle concavo-convex of the shape that copied profile concavo-convex of the basis silk 21 that forms compound thread like body 20 and copied the fiber 22 that is wound around and is coated on each basis threads 21.By have these two kinds concavo-convex, composite buffering material 30 can easily be embedded in compound thread like body 20, and can obtain high frictional force.
For example, while using stretch-draw material as concrete beam reinforcement, if stretch compound thread like body 20, the elongation per unit length maximum of compound thread like body 20 can reach 1.5% degree.That is, be 1.5% than the elongation per unit length of the compound thread like body 20 of the tip side of wedge 40, in the rear end side of wedge 40, owing to not being applied with pulling force, therefore the elongation per unit length of compound thread like body 20 is 0%.Thus, the compound thread like body 20 of chock inside produces the distribution of the elongation per unit length of 0-1.5%, but because composite buffering material 30 is to have assembled in the axial direction the material of being manufactured by fiber-reinforced plastic that fiber forms, therefore high in axial hot strength and there is suitable coefficient of elasticity, therefore, along with the stretching of compound thread like body 20 changes and is out of shape, and transmit reliably the frictional force between compound thread like body 20 and wedge 40, can bear end high stretching force, stable and fix thereby realize.
In addition, because composite buffering material 30 is longer a little than wedge 40, therefore wedge can directly not be contacted with compound thread like body, thereby does not exist wedge 40 to make the impaired harm of compound thread like body 20.
And composite buffering material 30 is simple two parts formed bodys cylindraceous, therefore do not need specially to carry out the preparation for installing, just can easily be installed at short notice compound thread like body 20.In addition, the inner surface of composite buffering material 30 has the shape chimeric with compound thread like body 20, therefore, in the time carrying out installation exercise, composite buffering material 30 is contacted at compound thread like body 20, is naturally entrenched in thus compound thread like body 20.Therefore,, without special a twist of the wrist, common operator just can easily realize the quality of regulation.
According to the extremity fixing structure 10 of the compound thread like body of the present embodiment, be not the compressive force being produced by compression set, but the bed knife being produced by the fastening force based on wedge 40 and sleeve 50.By wedge 40 fastening come suitably fastening compound thread like body 20, make to have and produce the suitable elasticity of distortion along with the extension of compound thread like body 20 and the composite buffering material 30 of intensity is arranged between compound thread like body 20 and wedge 40, improve thus frictional force, thereby can bring into play high bed knife.Therefore, do not need the required metal sleeve of compression set, and can prevent broken string.
In addition, composite buffering material 30 is formed with the shape with the profile tabling of compound thread like body 20, therefore only need carry out coated operation, even and not by skilled operator's operation, also can obtain desired quality, therefore can be fixed simply operation.
At this, the variation of the extremity fixing structure 10 to compound thread like body describes.,, composite buffering material 30 being installed on after compound thread like body 20 in the same manner as described above, as shown in Figure 6, further braided members 60 is coated on to its periphery.In the same manner as described above wedge 40 is coated on to its periphery.Braided members 60 is braiding stainless steel steel wires 61 and forming.
Concrete structure and size are illustrated for example.The stainless steel steel wire 61 that is 0.4mm by diameter is stranded with 1 × 7, and then its braiding is formed to braided members 60.Braided members 60 is capable of expansion and contraction, is arranged on composite buffering material 30 with the state dwindling, afterwards, by braided members 60 being stretched and pushing to make composite buffering material 30 and braided members 60 to be adjacent to.The structure of braided members 60 is representative is 1 × (6+6), but also can select 2 × other structures such as (6+6).Representative is that the core diameter in when braiding is 12mm, and pitch is 12mm.Core diameter or pitch can be chosen arbitrarily, can be installed on the weight per unit area of composite buffering material 30.
In addition, after having confirmed that compound thread like body 20 has the sufficient constant intensity that exceedes regulation fracture load, removed this load.Pay the nearly compound thread like body 20 that cut in the tip side of wedge 40, use mechanical device, tip side by push rod (not shown) top to wedge 40 is taken out wedge 40 by the method that wedge 40 is released to the rear end (peristome side) of sleeve 50 from sleeve 50.This wedge 40 easily takes out from braided members 60, and the threaded portion of wedge 40 still keeps the irregular state of tool.
Adopting when braided members 60, fixed performance is identical when not using braided members 60, and can obtain following effect.That is, in the manufacture field of prestressed concrete,, complete after concrete maintenance with fixing as stretch-draw, the remainder of cutting stretch-draw material, and take off fixed structure 10.This retaining element of finishing using (wedge 40 and sleeve 50) generally can recycle in factory.But when stretching force is high, the thread groove of chock inner surface is nipped to the top layer of composite buffering material 30, make thus wedge 40 and composite buffering material 30 fixing, therefore, be difficult to take off wedge 40 from composite buffering material 30.In addition, even while taking off wedge 40 from fixing composite buffering material 30, at the inner surface of wedge 40, the fragment of composite buffering material 30 (FRP sheet) has filled up the groove of threaded portion, therefore the concavo-convex function that lost of threaded portion.If recycle this wedge 40, need the technique of the fragment of removing composite buffering material 30.
As mentioned above, while chock being installed by be coated braided members 60 on composite buffering material 30, braided members 60 is arranged between wedge 40 and composite buffering material 30.Wedge 40 via braided members 60 indirectly with 30 interlocks of composite buffering material, therefore, suppresses wedge 40 and contact with the direct of composite buffering material 30, thereby the fragment that can not produce composite buffering material 30 fills up this phenomenon of groove of the threaded portion of wedge 40 inner sides.Therefore, remove external force and while decomposing fixed structure 10, wedge 40 easily takes out from composite buffering material 30, and the threaded portion of wedge 40 still keeps the irregular state of tool.Therefore, obtaining wedge 40 can directly recycle, and without the effect of removing engineering.
In addition, the utility model is not limited to above-mentioned embodiment.Composite buffering body is not limited to vinylon, can use polyester or polyamide equal strength or the higher fiber of coefficient of elasticity.In addition, resin is not limited to M-phthalic acid system, also can use unsaturated polyester resin, epoxy resin or the vinyl ester resin of phthalic anhydride system or terephthalic acid (TPA) system.Composite buffering body has adopted two-part structure, but also can adopt three part-structures or four part-structures.In addition, the size of each member or shape are examples, are not limited thereto.In addition, it is natural in the scope that does not depart from the utility model purport, can implementing various deformation.
[utilizability in industry]
Can obtain a kind ofly by not using compression set to keep the structure of sufficient frictional force, can be fixed simply the extremity fixing structure of the compound thread like body of operation.
Claims (4)
1. an extremity fixing structure for compound thread like body, is characterized in that,
Described extremity fixing structure possesses:
Compound thread like body, it makes continuous fiber Composite with resin material, and is shaped with twisted wire shape;
Composite buffering material, it is for covering described compound thread like body;
Wedge, it forms with tubular, and the end side of its external diameter from a side end of under tension to fixation side expand, and empty portion is chimeric therein a described composite buffering material; And
Sleeve, it is arranged at the outer circumferential side of described wedge, and has the internal construction of diameter towards the coniform hollow of the end side expansion of fixation side.
2. the extremity fixing structure of compound thread like body according to claim 1, is characterized in that,
Described continuous fiber is carbon fiber,
Described composite buffering material is manufactured by resin material.
3. the extremity fixing structure of compound thread like body according to claim 1, is characterized in that,
Described compound thread like body is by fibre-coated, and described fiber is wound around to the direction intersecting with described pulling force.
4. the extremity fixing structure of compound thread like body according to claim 1, is characterized in that,
Between described composite buffering material and described wedge, dispose the braided members that braided metal line forms.
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CN201420234740.7U CN203905504U (en) | 2014-05-08 | 2014-05-08 | Terminal fixing structure of compound linear body |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105089279A (en) * | 2014-05-08 | 2015-11-25 | 东京制纲株式会社 | Tail end fixing structure of composite threadlike body |
CN108701951A (en) * | 2016-03-09 | 2018-10-23 | 株式会社自动网络技术研究所 | Ultrasonic welding jig, method for manufacturing electric wire with terminal, and electric wire with terminal |
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2014
- 2014-05-08 CN CN201420234740.7U patent/CN203905504U/en not_active Expired - Fee Related
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105089279A (en) * | 2014-05-08 | 2015-11-25 | 东京制纲株式会社 | Tail end fixing structure of composite threadlike body |
CN108701951A (en) * | 2016-03-09 | 2018-10-23 | 株式会社自动网络技术研究所 | Ultrasonic welding jig, method for manufacturing electric wire with terminal, and electric wire with terminal |
CN108701951B (en) * | 2016-03-09 | 2020-04-21 | 株式会社自动网络技术研究所 | Ultrasonic welding jig, method for manufacturing electric wire with terminal, and electric wire with terminal |
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