JP2008161246A - Member having springiness and product using the same - Google Patents

Abstract

An object of the present invention is to improve the recyclability of a springy member formed by mounting a spring material on a member body made of copper or an alloy mainly composed of copper.
In a member having a spring property such as a slider for a slide fastener or a snap button, the member main body is made of copper or an alloy mainly composed of copper, and the spring material attached to the member main body is mainly composed of copper. Made of alloy Thereby, when recovering copper, there is no need to separate members, and it becomes easy to produce a regenerated ingot by remelting, and the recycle cost can be reduced.
[Selection figure] None

Description

  The present invention relates to a member composed of a member main body made of copper or an alloy mainly composed of copper, and a spring material attached thereto.

  2. Description of the Related Art Conventionally, members such as fastener sliders, snap buttons, and electrical component connectors are composed of a member main body made of copper or an alloy mainly composed of copper, and a spring material attached thereto. As the spring material, an iron-based alloy is used because strength, corrosion resistance, and spring characteristics are required. Further, in the use of the above-described fastener slider and snap button, a stainless steel material is often used because of the need for meter reading compatibility (see Patent Documents 1 and 2).

By the way, the recent rise in metal materials (especially copper / zinc) has increased the need to recycle copper and copper alloys used in the above members.
However, in a member formed by attaching a spring material made of stainless steel to a member main body made of copper or an alloy mainly composed of copper (hereinafter referred to as “member having spring property”), the member main body and the spring material are Since they are different materials, it is necessary to separate them, and the recyclability is poor.

For example, since a stainless steel material is used as a claw (lock pin) used in a slider locking mechanism and a spring material for functioning the claw (lock pin) in a fastener slider, it is made of a copper alloy when the slider is recycled (remelted). It is necessary to separate the body of the slider from the spring material, which is a factor that reduces recyclability. The same problem occurs in the snap button and the connector member.
For example, in a slider for jeans, a stainless steel lock pin that combines a claw and a spring is used, but the slider body made of copper alloy and the stainless steel lock pin do not have the same color, and the design is impaired. There is also a problem that.

JP 2003-277890 A JP-A-8-269639

  The main object of the present invention is to improve the recyclability of a member composed of a member body made of copper or a copper-based alloy and a spring material attached thereto.

By using a spring material made of an alloy mainly made of copper as a spring material in a member made of a member main body made of copper or an alloy mainly made of copper and a spring material attached thereto, the present inventors The present invention was completed by finding out that the problem of recyclability of the above members could be solved.
That is, the present invention has a configuration as described below.

(1) A member having spring properties, comprising: a member main body made of copper or an alloy mainly composed of copper; and a spring material made of an alloy mainly composed of copper mounted on the member main body.
(2) The spring material according to (1), wherein the spring material has a 0.2% proof stress of 1000 N / mm ² or more and a spring limit value of 700 N / mm ² or more.
(3) the spring member has 0.2% resistance 1200 N / mm ² or more, member having spring properties according to (1), characterized in that the spring limit value 1000 N / mm ² or more.
(4) The spring according to any one of the above (1) to (3), wherein the spring material has a hardness of Hv 400 or less, a tensile elongation of 5% or more, a corrosion resistance of a copper or more, and A corresponding to a meter reading. A member with the characteristics.
(5) The spring material according to any one of (1) to (4), wherein the spring material does not contain lead, mercury, cadmium, or hexavalent chromium.
(6) The above-mentioned (1), wherein the member having the spring property is a slider body of a slide fastener, the member main body is a body of the slider, and a spring material is attached to the body. The member provided with the spring property in any one of (5).
(7) A slide fastener slider comprising a body and a handle, wherein the body is a member having the spring property described in (6) above, and the handle is made of copper or an alloy mainly composed of copper. Slider for slide fastener.
(8) A slide fastener comprising an element, a fastener and a slider, wherein the element and / or the fastener is made of copper or an alloy mainly composed of copper, and the slider is the slider described in (7) above. Slide fastener to be used.
(9) The above-described (1) to (1), wherein the member having the spring property is a female body of a snap button, the member main body is a button main body, and a spring material is attached to the button main body. The member provided with the spring property in any one of 5).
(10) In a snap button comprising a male body and a female body, the male body is made of copper or an alloy mainly composed of copper, and the female body is made of a member having the spring property described in (9) above. Features a snap button.

By using the member having the spring property of the present invention, there is no need to separate the member, and it becomes easy to produce a regenerated ingot by remelting, and the recycle cost can be reduced.
Moreover, since both the member main body and the spring material are made of copper or an alloy mainly composed of copper, the same color can be obtained and the design (appearance) is improved.

A member having springiness according to the present invention will be described with reference to the drawings, taking a fastener slider and a button as an example. First, the slide fastener F will be described.
FIG. 1 is a conceptual diagram of a slide fastener. As shown in FIG. 1, a slide fastener F has a pair of fastener tapes T having a core A formed on one side end and a predetermined core part A of the fastener tape T. A pair of opposing elements E, which are caulked and fixed (attached) at an interval of, and an upper stopper TS and a lower stopper BS which are caulked and fixed to the core A of the fastener tape T at the upper and lower ends of the element E The slide fastener slider S (hereinafter referred to as a slider) S is arranged between the elements E and is slidable in the vertical direction for engaging and disengaging (opening / closing) the element E. In the above description, the slide fastener chain C is the one in which the element E is mounted on the core portion A of the fastener tape T. Although not shown, the bottom stop BS is a break-and-fit insert made of a butterfly stick, a box stick, and a box, so that the pair of slide fastener chains C can be separated by the opening operation of the slider S. It doesn't matter.

  In the present invention, the material of the slider S is mainly copper or an alloy mainly composed of copper. In addition, as the element E, the upper stopper TS, and the lower stopper BS, it is preferable to use copper corresponding to the meter reading device or an alloy mainly composed of copper in consideration of recyclability. Hereinafter, the slider S will be described in detail.

2, 3 and 4 are views showing an example of a slide fastener slider S with an automatic stop device using a plate spring as a spring material, FIG. 2 is a perspective view showing the overall configuration of the slider, and FIG. FIG. 4 is a sectional view of the slider of FIG. 2 (however, the position of the handle is different).
The slider body 1 is formed of guide pillars 6 that connect the upper wing plate 4, the lower wing plate 5, and the upper and lower wing plates 4, 5, and the plate spring 2 is plate-shaped and bent at both ends, with a substrate 7 in the center, A stop claw 8 is formed at one end, and a hanging piece 9 for fixing is formed at the other end. The handle 3 is provided with a pivot 10 for pivotally mounting on the body 1 at one end, and a handle 11 at the other end. Is formed.

  Further, the fuselage 1 is provided with a projecting piece 12 projecting upward in a hook shape at the front side of the upper wing plate 4, that is, at the center of the shoulder opening side, and an engaging projection 13 projecting at the center of the tip of the projecting piece 12 is provided. The through hole 25 of the locking tongue piece 24 of the leaf spring 2 to be inserted is fitted. Further, a contact portion 14 on which the locking tongue piece 24 can come into contact is formed at the tips of the projecting pieces 12 on both sides of the engagement protrusion 13, and the contact portion 14 has an extension line with respect to the upper surface of the upper blade 4. It is formed on a vertical plane that intersects at right angles. A through hole 15 that communicates with the element guide groove 19 is provided at the base of the projecting piece 12, and a support base 16 for projecting the forwardly inclined plate spring 2 is provided on both sides of the base of the projecting piece 12.

  A hook-like projecting piece 17 that tilts backward is provided at the rear side of the upper wing plate 4, that is, at the center of the rear opening side, and the front end of the projecting piece 17 is bent to provide a locking portion 18. The hook hole 26 is loosely fitted, and a claw hole 20 communicating with the element guide groove 19 is formed at the base of the projecting piece 17. In addition, a groove 21 is provided on the front surface of the guide post 6, and a locking portion 22 having a substantially right triangle shape in which the lower portion is horizontal and the upper portion is inclined is provided on both sides of the groove 21. It is formed so that it can be engaged with. In addition, the groove | channel 21 may be not only the concave shape shown in figure but the vertical hole shape penetrated up and down of the guide pillar 6. FIG.

  The leaf spring 2 has a substantially inverted U-shape and is provided with a stop claw 8 at one end and a narrow hanging piece 9 at the other end, and a locking piece 23 projecting laterally from the tip of the hanging piece 9 is provided. And engages with a locking portion 22 provided on the guide column 6. An opening 28 is provided in the central substrate 7 of the leaf spring 2, and a locking tongue piece 24 that is bent forward and extended from the lip of the opening 28 is provided. A through hole 25 in which the engaging protrusion 13 of the projecting piece 12 can be loosely fitted is formed in the center, and a hooking hole in which the locking portion 18 of the rear projecting piece 17 can be loosely fitted to the plate spring 2 near the stop claw 8. 26 is drilled to restrict the stop pawl 8 from rising.

The handle 3 is provided with a pivot 10 at one end and a handle 11 at the other end. When the handle 3 is mounted on the body 1 and falls down, the pivot 10 protrudes to the side facing the body 1 and the cross section of the pivot 10. A cam 27 having a long rectangular shape along the longitudinal direction of the handle 3 is formed, and the leaf spring 2 is lifted by attaching the handle 3 to the body 1 and raising and lowering the handle 3.
When the slider 3 having the assembled automatic stop mechanism raises the handle 3 as shown in FIG. 4, the plate spring 2 is lifted against the elasticity by the cam 27 of the handle 3, and the stop pawl 8 is moved to the element guide groove. By retracting from the slider 19, the slider can be freely slid. If the handle 3 is lowered to the original position, the stop pawl 8 advances into the element guide groove 19 and is inserted between the elements, and the slider stops. When the handle 3 is tilted forward of the body 1, the leaf spring 2 continues to be lifted by the biased cam 27, so that the slider can be freely slid forward.
In the present invention, since each member and the plate spring constituting the slider are made of copper or an alloy mainly composed of copper, the recyclability is high.

Next, an example of a slide fastener slider with an automatic stop device using a coil spring as a spring material, which is another aspect of the present invention, will be described with reference to FIGS.
FIG. 5 is an exploded perspective view of the slider S, and FIG. 6 is a vertical cross-sectional view showing a state immediately before attaching the handle.
A downwardly downward pulling handle holding body 5 is arranged from the diamond portion 3 of the upper wing piece 2 of the slider S toward the rear mouth portion 4, and the inner space 6 of the pulling holding body 5 is located closer to the diamond portion 3. The stop claw body 7 is mounted so as to be rotatable in the vertical direction, and the stop claw body 7 protrudes from the locking window hole 17 formed at a substantially central position of the upper wing piece 2 to the dentition position. A locking claw 19 that is open toward the rear opening 4 and an operating groove 22 that accommodates the attachment shaft portion 21 of the handle is formed. The gap 27 between the end portion on the rear opening 4 side of the pull handle holder 5 and the upper wing piece 2 serves as an insertion gap of the mounting shaft portion 21 of the pull handle 20. In the gap portion 27, the closing member 28 of the insertion gap is close to the gap closing position and the diamond portion 3 side. It is arranged so that it can slide between the open position.

Since this slider is described in Japanese Utility Model Publication No. 4-32974, further details are omitted here. However, because the puller 20 is detachable from the slider S by the above-described configuration, 20 can be easily detached at any time. Therefore, even if the handle 20 is made of copper or an alloy other than copper, the handle 20 can be easily extracted from the slider S and separated at the time of recycling. It does not have to be an alloy.
In this invention, since each member and spring which comprise the said slider are comprised from the alloy which has copper or copper as a main component, recyclability is high.

Next, a snap button which is another aspect of the present invention will be described with reference to FIGS.
In the following, “surface member” refers to a member mainly disposed on the outer surface side of the fabric, and “base member” refers to a member primarily disposed on the back surface side of the fabric.
FIG. 7 is a cross-sectional view showing a snap button SB1 which is an example of a snap button to which the present invention is applied. The snap button SB1 includes a female button 31 and a male button 32. The female button 31 is pierced with a female member 33 (base member) having a recess 33a provided with an elastic portion (spring material) that engages with a male button 32 described later on the inner peripheral surface, and the female member 33. And a female fixing member 35 (surface member). The male button 32 includes a male member 34 (surface member) having a bulging head 34 a that engages with the elastic portion of the female member 33, and a male fixing member 36 (base member) that pierces the fabric 20 and fixes the male member 34. ).

FIG. 8 is a cross-sectional view showing a snap button SB2, which is another example of the snap button. The snap button SB2 includes a female button 31 and a male button 32, similar to the snap button SB1. The female button 31 is fitted in the covering member 37 and the covering member 37 to prevent the covering member 37 from being deformed and is pierced by the cloth 20, and the covering member 37 and the female member 33 to be described later are passed through the cloth 20. A female fixing member 35 (a surface member obtained by combining the covering member 37 and the female fixing member 35), a female member 33 having a recess 33a for accommodating a male button 32 to be described later, and a female member 33 And a spring (spring material) 38 (a base member that combines the female member 33 and the spring 38) provided with elasticity to engage with a male button 32 described later. The male button 32 is inserted into the recess 33a of the female member 33, and is pierced by the fabric 20 and a male member 34 (surface member) having a bulging head 34a that engages with a spring 38 having elasticity. It consists of a male fixing member 36 (base member) for fixing the male member 34.
Since the surface member, base member, and spring material (elastic portion, spring) in the snap buttons SB1 and SB2 are all made of copper or an alloy mainly composed of copper, the recyclability is high.

The spring material made of an alloy mainly composed of copper in the present invention is preferably a high-strength copper alloy that satisfies the following physical properties.
0.2% proof stress: 1000 N / mm ² or more (preferably 1200 N / mm ² or higher)
Spring limit value: 700 N / mm ² or more (preferably 1000 N / mm ² or more)
Hardness: Hv400 or less Tensile elongation: 5% or more Corrosion resistance: Metallic copper (85Cu / 15Zn) or more Compatible with meter readings: Compatible with A Alloy components: Does not contain lead, mercury, cadmium or hexavalent chromium

The above physical properties are particularly required for spring materials used for fastener sliders and snap buttons.
If the 0.2% proof stress is 1000 N / mm ² or more and the spring limit value is 700 N / mm ² or more, a spring material mainly composed of copper for practical use can be obtained. Further, the slide fastener and the snap button are used under a severe environment depending on the application. For example, there are a stone wash when used for jeans, an autoclave treatment when used in a clean room, and the like. When considering the use in such harsh environments, 0.2% proof stress is 1200 N / mm ² or more, it is desirable spring limit value is 1000 N / mm ² or more.

In addition, the hardness and tensile elongation are the values defined above in consideration of the strength that can withstand actual use and the ease of manufacturing and processing (for example, press molding).
Furthermore, since slide fasteners, snap buttons, and the like are used around clothes, shoes, etc., it is desirable not to contain lead, mercury, cadmium, or hexavalent chromium.

Regarding the above corrosion resistance, there are various corrosion resistances required for copper alloys for fasteners, including chemicals such as acids and alkalis, but the most important one is against stress cracking, which is also called seasonal cracking. When residual stress due to processing exists, cracking occurs when exposed to an ammonia atmosphere, and in the case of a copper-zinc alloy, the tendency becomes more prominent as the amount of zinc increases. For example, brass (65Cu / 35Zn) is more susceptible to cracking than red brass (85Cu / 15Zn), and there is a concern that the leg of the dentition may be broken depending on the usage environment. For this reason, brass is stronger than red brass, but red is more suitable as a fastener material in terms of stress cracking. Similarly, since the spring material using a copper alloy needs to have resistance to stress cracking, the copper alloy of the spring material in the present invention has a stress cracking resistance in the JIS H 4201 ammonia test that is higher than the stress cracking resistance exhibited by the red copper. It means that there is.
The specific test method is as follows.
(Corrosion resistance test)
The sample is suspended 50 to 100 mm away from the liquid surface in a desiccator containing 12% ammonia water, left for a certain time (2 hours), and judged by the presence or absence of stress cracking. In the case of a copper alloy used as a spring material, since it is provided by a strip material or a wire, it can be determined by the tensile strength. If there is a stress crack, it will appear as a drop in tensile strength.

  Next, the meter reading compatibility will be described. In the process of sewing and commercializing clothes that use slide fasteners and buttons, a process of detecting mixing of broken needles during sewing is required. At this time, it is necessary for the constituent members of the slide fastener and the button not to operate the meter reading device. For this purpose, the member needs to have a magnetic permeability of 1.005 or less in a magnetic field of 1 kOe and a magnetization in a magnetic field of 18 kOe of 550 memu / g or less, and further in a magnetic field of 1 kOe. It is more preferable that the magnetic permeability in the magnetic field of 18 kOe is 440 memu / g or less.

  The meter reading performance is the reference value for the change in magnetic flux density equivalent to an iron ball of φ0.8 mm in a static magnetic field type meter that measures the change in magnetic flux density that occurs when a metal is passed through the magnetic flux at a constant speed. (Indicated value) It is set to 100 to 120, and the value when the object to be measured is measured is used as a meter reading value, and is evaluated based on a relative value with respect to the reference value. That is, if the meter reading value of the object to be measured is less than the reference value, it is less than or equal to φ0.8 mm iron ball. If the meter value of the object to be measured is less than the meter value of φ1.2 mm iron ball, it is less than or equal to φ1.2 mm iron ball. It becomes. In addition, the meter reading performance is represented by which of φ0.8, 1.2 and 1.5 mm iron balls or less, and in the case of φ0.8 mm iron balls or less, the smallest special size used for sewing This means that even broken needles can be detected. When the diameter is φ1.2 mm or less, it means that a normally used broken needle can be sufficiently detected. “A correspondence” in this specification refers to a case corresponding to an iron ball of φ0.8 mm or less.

  In the present invention, the meter reading performance is preferably φ1.2 mm iron ball or less, and most preferably φ0.8 mm iron ball or less. In the present invention, in the case of an alloy, the object to be measured is a material having a size of 15 × 15 × 0.4 mm, and the meter reading value of the object to be measured is a result obtained by flowing this perpendicularly to the magnetic flux. In the case of slide fasteners and buttons, the object to be measured is a product or a part, and the meter reading value of the object to be measured is a result obtained by causing this to flow perpendicularly to the magnetic flux.

EXAMPLES Hereinafter, although this invention is demonstrated concretely based on an Example, this invention is not limited to the following Example.
(Production of spring material)
The spring material 1 and the spring material 2 which have a composition shown in Table 1 as a copper alloy for spring materials were produced as follows.
Weighed to the prescribed composition shown in Table 1, melted by a conventional method in a 30 Kg high frequency induction melting furnace, forged to 10 mm thickness and 120 mm width, solution treated, cold rolled to 3 mm, intermediate annealed, and further , Cold rolled to 1.5 mm, and finally annealed to 120 × 300 mm.
Thereafter, cold rolling was further performed so that the rolling rate was 60%, followed by age hardening treatment by heat treatment, and the obtained material was used as a test material. The “0.2% yield strength” and “spring limit value” of the test material at this time were the values shown in [Table 2].
Furthermore, the specimen was made 15 × 15 × 0.4 mm in size, and the meter reading value was measured. The meter reading value is the reference value for the change in magnetic flux density equivalent to an iron ball of φ0.8 mm in a static magnetic field type meter that measures the change in magnetic flux density that occurs when a metal is passed through the magnetic flux at a constant speed. (Indicated value) Set to 100 to 120, and the value when the measured object is measured is set as the meter reading value. The results measured based on the above are shown in Table 2. The numerical values shown in the table indicate relative values to the reference value. As can be seen from the results in Table 2, it can be seen that the test material of the present invention has an extremely small meter reading value of 80 or less.

  As shown in Table 2, the spring materials 1 and 2 had physical properties as spring materials used for slide fasteners and buttons.

(Application to slide fastener)
A leaf spring 2 shown in FIG. 3 was produced based on the composition and production method described above (production of spring material). The obtained plate spring 2, the body 1 made of red brass (85Cu-15Zn), and the handle 3 were combined to form a slide fastener S made of an alloy mainly composed of copper.
Further, the slide fastener F made of an alloy mainly composed of copper is provided by arranging the slider S for the slide fastener on the element E, the upper stopper TS, and the lower stopper BS made of red brass (85Cu-15Zn) shown in FIG. .
The said plate spring 2 was equipped with the physical property as a slider for slide fasteners. Moreover, since both the slide fastener slider and the slide fastener are alloys mainly composed of copper, they are excellent in recyclability.
Similarly, when the spring material is used as a spring material in a button, it is clear that the recyclability is also excellent.

  The member having the spring property of the present invention does not require the labor of separating the constituent members when recovering copper, and since it is easy to produce a regenerated ingot by remelting, it is possible to reduce the recycling cost. High usability.

It is a conceptual diagram of a slide fastener. It is a perspective view of a slider to which the present invention is applied. It is a disassembled perspective view of the slider of FIG. It is sectional drawing of the slider of FIG. It is a disassembled perspective view of the other example of the slider to which this invention is applied. It is a longitudinal cross-sectional view in the longitudinal center line of the slider of FIG. It is sectional drawing of a snap button. It is sectional drawing of the other example of a snap button.

Explanation of symbols

(About Figure 1)
T Fastener tape A Core E Element TS Upper stopper BS Lower stopper C Slide fastener chain (FIGS. 2 to 4)
1 fuselage 2 leaf spring 3 handle 4 upper wing plate 6 guide pillar 7 substrate 8 stop claw 9 hanging piece 10 pivot 12 projecting piece (front)
13 Engaging projection 14 Abutting portion 15 Through hole (upper blade plate)
17 Projection (back)
20 Claw hole 21 Groove 22 Locking part (concave groove)
23 Locking piece 24 Locking tongue piece 25 Through hole (locking tongue piece)
26 Hooking hole 27 Cam (Figs. 5 and 6)
DESCRIPTION OF SYMBOLS 1 Slider 2 Upper blade piece 3 Diamond part 4 Rear opening part 5 Pull handle holding body 6 Internal space 7 Stop claw body 8 Upper surface 9,10 Mounting piece 11,12,14 Shaft hole 13 Pin 15 Mounting groove 17 Locking window 18 Tooth guide path 19 Locking claw 20 Pulling handle 21 Mounting shaft portion 22 Actuation groove 23 Rear end lower surface 24 Small hole 25, 45 Spring 26 End portion 27 Gap portion 28 Closure member 29 Wallet portion 30, 31, 32 Guide groove 33, 34 Projection 35, 36 Expansion portion 37 Retraction space 38 Storage space 39 Continuous edge portions 40, 41 Closing portion 42 Recess 43 of closing member 28 Window groove 44 Perimeter wall of locking window hole (FIGS. 7 and 8)
SB1 Snap button 20 Fabric 31 Female button 32 Male button 33 Female member (base member)
33a Recess 35 Female fixing member (surface member)
34 Male member (surface member)
34a bulging head 36 male fixing member (base member)

Claims (10)

  A member having spring properties, comprising: a member body made of copper or an alloy mainly composed of copper; and a spring material made of an alloy mainly composed of copper mounted on the member body. ^{2. The} member having spring properties according to claim 1, wherein the spring material has a 0.2% proof stress of 1000 N / mm ² or more and a spring limit value of 700 N / mm ² or more. ^{2. The} member having spring properties according to claim 1, wherein the spring material has a 0.2% proof stress of 1200 N / mm ² or more and a spring limit value of 1000 N / mm ² or more.   The member having spring properties according to any one of claims 1 to 3, wherein the spring material has a hardness of Hv 400 or less, a tensile elongation of 5% or more, a corrosion resistance of a copper or more, and A corresponding to a meter reading.   The said spring material does not contain lead, mercury, cadmium, and hexavalent chromium, The member provided with the spring property in any one of Claims 1-4 characterized by the above-mentioned.   The member having the spring property is a body of a slider for a slide fastener, the member main body is a body of the slider, and a spring material is attached to the body of the slider. The member provided with the spring property of crab.   A slider for a slide fastener comprising a body and a handle, wherein the body is a member having the spring property according to claim 6, and the handle is made of copper or an alloy mainly composed of copper. .   A slide fastener comprising an element, a fastener, and a slider, wherein the element and / or the fastener is made of copper or an alloy mainly composed of copper, and the slider is the slider according to claim 7.   The member having the spring property is a female body of a snap button, the member main body is a button main body, and a spring material is attached to the button main body. A member having the described springiness.   A snap button comprising a male body and a female body, wherein the male body is made of copper or a copper-based alloy, and the female body is made of the spring-equipped member according to claim 9. button.

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