WO2012066831A1 - Sliding contact and method for producing same - Google Patents

Sliding contact and method for producing same Download PDF

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Publication number
WO2012066831A1
WO2012066831A1 PCT/JP2011/068516 JP2011068516W WO2012066831A1 WO 2012066831 A1 WO2012066831 A1 WO 2012066831A1 JP 2011068516 W JP2011068516 W JP 2011068516W WO 2012066831 A1 WO2012066831 A1 WO 2012066831A1
Authority
WO
WIPO (PCT)
Prior art keywords
slider
metal plate
sliding contact
carbon fiber
resin
Prior art date
Application number
PCT/JP2011/068516
Other languages
French (fr)
Japanese (ja)
Inventor
小松　寿
Original Assignee
アルプス電気株式会社
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 アルプス電気株式会社 filed Critical アルプス電気株式会社
Priority to JP2012544133A priority Critical patent/JP5519802B2/en
Publication of WO2012066831A1 publication Critical patent/WO2012066831A1/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C10/00—Adjustable resistors
    • H01C10/30—Adjustable resistors the contact sliding along resistive element
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/02—Contacts characterised by the material thereof
    • H01H1/021—Composite material
    • H01H1/027—Composite material containing carbon particles or fibres
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/02—Contacts characterised by the material thereof
    • H01H1/021—Composite material
    • H01H1/029—Composite material comprising conducting material dispersed in an elastic support or binding material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/36—Contacts characterised by the manner in which co-operating contacts engage by sliding
    • H01H1/44—Contacts characterised by the manner in which co-operating contacts engage by sliding with resilient mounting
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/04—Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts

Definitions

  • the present invention relates to a sliding contact provided with a carbon fiber bundle and a manufacturing method thereof.
  • Patent Document 1 discloses an invention relating to a method for manufacturing a sliding contact.
  • a holder made of a resin mold is provided at the base of a slider obtained by impregnating a carbon fiber bundle with resin in order to facilitate handling of the sliding contact.
  • the present invention is intended to solve the above-described conventional problems, and in particular, an object of the present invention is to provide a sliding contact excellent in reliability and productivity and a method for manufacturing the same as compared with the related art.
  • the sliding contact in the present invention is
  • the slider comprises a carbon fiber bundle covered with resin, and includes a slider having a plate-like base portion and a contact portion extending from the base portion, and an attachment portion to a slider holder, and the slider And a metal plate attached to the base.
  • a structure in which a metal plate is attached to the base of the slider is sufficient, unlike the configuration in which a resin molded body is molded on the base of the slider, there is no occurrence of burrs, and it is expensive like a resin mold. Does not require a mold. Furthermore, it is possible to firmly join the base of the slider and the metal plate without requiring a connection structure via another member between the base of the slider and the metal plate. As described above, it is possible to make the sliding contact superior in reliability and productivity as compared with the conventional case. Further, the manufacturing cost can be reduced.
  • the metal plate is attached to the base portion of the slider as in the present invention, the electric resistance in the direction intersecting with the extending direction from the base portion to the contact portion can be effectively reduced.
  • the metal plate is provided with an attachment portion to the slider holder, the sliding contact can be directly and stably attached to the slider holder.
  • the mounting portion is a mounting hole including a through hole, and an opening is formed at a position facing the mounting hole in the base portion of the slider, and the base portion surrounding the opening Is preferably affixed to the metal plate.
  • the protrusion provided on the slider holder is inserted into the mounting hole of the metal plate continuously penetrating the opening of the slider, and the protrusion is caulked as necessary, thereby easily and reliably.
  • the sliding contact can be fixed to the slider holder.
  • the entire opposing surface excluding the mounting hole of the metal plate and the opening of the base of the slider can be used as the pasting region, it is easy to secure a wide pasting area, and the pasting between the metal plate and the slider ( Adhesion) can be ensured.
  • the metal plate is made of an elastic metal plate, and at least a part of the periphery of the mounting hole is provided with a spring piece formed by extending the metal plate into the mounting hole in plan view.
  • the opening provided in the slider is preferably formed larger than the mounting hole excluding the spring piece. While the spring piece is elastically deformed, the protrusion provided on the slider holder can be inserted into the mounting hole, and the sliding contact can be firmly attached to the slider mounting part, improving the assembly. Can do.
  • the opening formed in the base of the slider is formed larger than the mounting hole excluding the spring piece, when the protrusion provided on the slider holder is inserted into the mounting hole, the protrusion is formed on the slider.
  • the protrusion can be inserted smoothly without hitting the periphery of the formed opening, and even if the spring piece is elastically deformed due to the insertion of the protrusion provided on the slide holder, it can be inserted between the slider and the metal plate. A force in the peeling direction hardly acts, and the sticking (adhesion) between the slider and the metal plate can be maintained in a stable state.
  • the spring piece is provided in a part of the periphery of the mounting hole, and a positioning portion for the slider holder is provided on an end surface of the mounting hole where the spring piece is not formed.
  • the sliding contact can be attached to the slider holder with high accuracy. For example, by applying the sliding contact of the present invention to the variable resistor, the detection accuracy of the variable resistor can be improved.
  • the sliding contact is fixed to the slider holding body simultaneously with the simple operation of inserting the protrusion provided on the slider holding body into the mounting hole. Positioning can be performed with high accuracy.
  • the end surface constituting the positioning portion is formed obliquely with respect to the extending direction of the contact portion and the direction orthogonal to the extending direction.
  • the sliding contact and the slider holder can be positioned with high accuracy in both the extending direction of the contact portion and the orthogonal direction.
  • the metal plate is provided with a positioning portion with respect to the slider holder.
  • the sliding contact can be attached to the slider holder with high accuracy.
  • the detection accuracy of the variable resistor can be improved by applying the sliding contact of the present invention to the variable resistor.
  • the positioning portion can be provided at a position other than the attachment portion to the slider holder.
  • At least three plate-like layers of the carbon fiber bundles covered with the resin are stacked in the slider, and the extending directions of the carbon fiber bundles of adjacent layers are alternated.
  • the carbon fiber bundles on both surface layers of the slider in the stacking direction extend along the extending direction of the contact portion.
  • the strength of the slider can be increased.
  • slidability with a conductive pattern such as a resistor can be improved.
  • the manufacturing method of the sliding contact in the present invention is as follows. Impregnating the carbon fiber bundle with resin; Processing the carbon fiber bundle impregnated with the resin into the shape of a slider having a plate-like base portion and a contact portion extending from the base portion; In a state where a metal plate provided with an attachment portion to the slider holder is superposed on the base portion of the slider, hot pressing is performed, and at this time, the metal plate is attached to the base portion of the slider with the resin. Attaching molding process, It is characterized by having. In this way, a connection structure using a separate member, for example, between the base of the slider and the metal plate, or a carbon fiber bundle without using a new adhesive to join the base of the slider and the metal plate. Using the impregnated resin, the metal plate can be easily and reliably attached to the base of the slider in the slider forming process by hot pressing.
  • the resin is a thermosetting resin
  • the metal plate is attached to the base portion of the slider simultaneously with the heat curing of the thermosetting resin by the hot pressing. Both the forming process of the slider and the sticking (adhesion) between the metal plate and the base of the slider can be performed easily and stably, and the productivity can be effectively improved.
  • the hot pressing in a state where release sheets are arranged on both surfaces of the sliding contact obtained by superimposing a metal plate on the base of the slider. Even if the resin oozes out by hot pressing, the release sheet is interposed between the press die and the sliding contact, so the resin does not adhere to the press die side, and after hot pressing, the resin is properly slid from the press die. A moving contact can be taken out and productivity can be improved.
  • the sliding contact can be made superior in reliability and productivity as compared with the prior art. Further, the manufacturing cost can be reduced. Furthermore, the electrical resistance in the direction intersecting with the extending direction from the base portion to the contact portion can be effectively reduced.
  • a new bonding structure is used for joining the base portion of the slider and the metal plate, for example, a connection structure using a separate member, or between the base portion of the slider and the metal plate. Even if no agent is used, the metal plate can be easily and reliably attached to the base of the slider in the step of forming the slider by hot press using the resin impregnated in the carbon fiber bundle.
  • FIG. 1A is a plan view of a sliding contact in the embodiment of the present invention
  • FIG. 1B is a sectional view of the sliding contact shown in FIG.
  • FIG. 1C is a longitudinal sectional view
  • FIG. 1C is a longitudinal sectional view of the sliding contact shown in FIG. 1A cut along the line BB and viewed from the direction of the arrow.
  • FIG. It is a longitudinal cross-sectional view which shows the cut surface in the same position as FIG.1 (c) which shows the state which fixed the sliding contact shown to 1 (a) to the holder (slider holding body).
  • It is a perspective view of the sliding contact of this embodiment, a 1st conductive pattern, and a 2nd conductive pattern.
  • FIGS. 1 (b) to 1 (d) are examples (partially enlarged longitudinal sectional views) of the cross-sectional structure of the slider appearing on the cut surfaces of FIGS. 1 (b) to 1 (d).
  • 4A is a plan view of a sliding contact in another embodiment different from FIG. 1A
  • FIG. 4B is a cross-sectional view taken along line CC in FIG. 4A
  • FIG. 4C is a longitudinal sectional view showing a state in which the sliding contact as viewed from the direction of the arrow is attached to the holder (slider holder), and
  • FIG. 4C shows the holder (sliding from the back side of the sliding contact shown in FIG. It is a top view of the state which attached the child holding body.
  • FIG. 5 (a) is a plan view of a sliding contact in another embodiment different from FIGS. 1 (a) and 4 (a), and FIG. 5 (b) is a cross-sectional view of FIG.
  • FIG. 5C is a longitudinal sectional view showing a state in which the sliding contact cut along the line and viewed from the direction of the arrow is attached to the holder (slider holder).
  • FIG. 5C is a view of the sliding contact shown in FIG. It is a top view of the state which attached the holder from the back side.
  • FIG. 10 is a process diagram (perspective view) performed subsequent to FIG. 9; It is process drawing (perspective view) performed after FIG. FIG. 12 is a process diagram (plan view) performed after FIG. 11.
  • FIG. 13 is a process diagram (longitudinal sectional view) performed subsequent to FIG. 12;
  • FIG. 14 is a process diagram (longitudinal sectional view) performed subsequent to FIG. 13;
  • FIG. 15 is a process diagram (longitudinal sectional view) performed subsequent to FIG. 14.
  • FIG. 1A is a plan view of a sliding contact in the embodiment of the present invention
  • FIG. 1B is a sectional view of the sliding contact shown in FIG.
  • FIG. 1C is a longitudinal sectional view
  • FIG. 1C is a longitudinal sectional view of the sliding contact shown in FIG. 1A cut along the line BB and viewed from the direction of the arrow.
  • FIG. It is a longitudinal cross-sectional view which shows the state which fixed the sliding contact shown to 1 (a) to the holder (slider holding body) in the cut surface in the same position as FIG.1 (c).
  • FIG. 2 is a perspective view of the sliding contact, the first conductive pattern, and the second conductive pattern of the present embodiment.
  • 3 (a) and 3 (b) are examples (partially enlarged longitudinal sectional views) of the cross-sectional structure of the slider appearing on the cut surfaces of FIGS. 1 (b) to 1 (d).
  • FIG. 1 (a) which is a plan view, as shown in FIG. 1 (b), the front end surfaces 2b1 and 2c1 of the contact portions 2b and 2c are bent so as to be in the upward direction in the drawing.
  • the sliding contact 1 of FIG. 1A is turned over, that is, the front end surfaces 2b1 and 2c1 are directed downward.
  • a sliding contact 1 shown in FIG. 1 includes a slider 2 and a metal plate 3.
  • a bundle of a large number of carbon fibers 6 (in FIG. 3A, only one carbon fiber is marked) is covered with a resin 5. Is. Resin 5 also enters the gap between adjacent carbon fibers 6.
  • the resin 5 includes, as thermosetting resins, triphenyl glycidyl ether methane (Tri-PGEM), cresol novolac epoxy, tetraglycidyl diaminophenyl methane (Tet-GDDM), tetraphenyl glycidyl ether ethane (Tet-PGEE). At least one of them, at least one flexible epoxy of bisphenol epoxy resin, dimer acid type epoxy resin, linear aliphatic epoxy, diaminodiphenylsulfone (DDS), acid anhydride, dicyandiamide (DICY) as a curing agent Among these, it is preferable to use at least one of them.
  • the resin 5 is not limited to a thermosetting resin, and may be a thermoplastic resin.
  • each carbon fiber 6 is preferably in the range of several ⁇ m to several tens of ⁇ m.
  • the slider 2 shown in FIG. 1 is formed in a plate shape, and the surface is flat except for the tip and spring pieces 11 to 14 described later.
  • the slider 2 includes a plate-like base portion 2a, a first contact portion 2b extending from the base portion 2a in the X1-direction at an interval in the Y1-Y2 direction, and a second contact portion 2b. And a contact portion 2c.
  • the tips of the contact portions 2b and 2c are bent at a predetermined angle.
  • End surfaces 2b1 and 2c1 shown in FIGS. 1A and 1B are cut surfaces, and the surface of the carbon fiber 6 is exposed along with the resin 5 from the end surfaces 2b1 and 2c1.
  • FIGS. 1A and 1B only the tips of the contact portions 2b and 2c are bent.
  • the contact portions 2b and 2c may be bent from the vicinity of the roots, and what shape is bent.
  • Various changes can be made depending on the form of use.
  • the metal plate 3 is preferably a flat metal plate having elasticity.
  • the metal plate 3 is preferably made of phosphor bronze, stainless steel or the like.
  • the metal plate 3 is provided with a mounting hole 10 penetrating in the height direction (the thickness direction of the metal plate 3).
  • the attachment hole 10 is provided in the approximate center of the metal plate 3, for example.
  • four spring pieces 11 to 14 are provided in the mounting hole 10 by cutting and raising the metal plate 3 and bending it obliquely upward.
  • the bending directions of the spring pieces 11 to 14 and the bending directions of the tips of the contact portions 2b and 2c are the same.
  • Each of the spring pieces 11 to 14 can be elastically deformed. As shown in FIGS.
  • a spring piece 11 is provided on the X1 side of the mounting hole 10, a spring piece 12 on the Y1 side, a spring piece 13 on the X2 side, and a spring piece 14 on the Y2 side.
  • the flat portion 3a of the metal plate 3 XY plane; a portion excluding the mounting hole 10 and each of the spring pieces 11 to 14
  • the spring piece 11 bending end
  • the shape surrounded by the four boundary portions 11a to 14a is a square or a rectangle.
  • the metal plate 3 is provided with positioning holes 23, 23 penetrating therethrough.
  • Each positioning hole 23, 23 is used when positioning between the metal plate 3 and the slider 2 in the manufacturing process described later.
  • an opening 15 is formed in the base 2a of the slider 2 at a position facing the mounting hole 10 in the height direction.
  • the size of the opening 15 is larger than the shape of the mounting hole 10 excluding the spring pieces 11 to 14, that is, the shape surrounded by the boundary portions 11a to 14a. Therefore, the end faces 15a to 15d of the opening 15 formed in the slider 2 are formed so as to spread outward from the boundary portions 11a to 14a.
  • Positioning holes 19 and 19 are formed in the base 2a of the slider 2 so as to pass through the positions facing the positioning holes 23 and 23 formed in the metal plate 3.
  • the opening 15 formed in the base 2a of the slider 2 is preferably a similar shape slightly larger than the mounting hole 10 excluding the spring pieces 11 to 14, but the spring pieces 11 to 14 are excluded.
  • the mounting hole 10 may have a different shape.
  • the opening 15 formed in the base 2a of the slider 2 can be circular.
  • the base 2a of the slider 2 and the metal plate The pasting region (adhesion region) between the three can be effectively expanded, which is preferable.
  • the facing surface 3b of the metal plate 3 facing the slider 2 and the facing surface 2d of the slider 2 facing the metal plate 3 are each planar.
  • the facing surface 3 b of the metal plate 3 and the facing surface 2 d of the slider 2 are overlapped, and the metal plate 3 is attached to the base 2 a of the slider 2.
  • the metal plate 3 can be pasted with the resin 5 (see FIG. 3) constituting the slider 2.
  • the protrusion 18 provided on the surface of the holder (slider holder) 17 opens from the back side (slider 2 side) of the sliding contact 1 to the opening of the slider 2. 15 is inserted into the mounting hole 10 of the metal plate 3 penetrating continuously.
  • the holder 17 can be formed of, for example, a resin molded body.
  • the protrusion 18 can be inserted into the mounting hole 10 while elastically deforming each of the spring pieces 11 to 14.
  • the size of the projection 18 on the XY plane is smaller than the size of the mounting hole 10 excluding the spring pieces 11 to 14 (the size surrounded by the boundary portions 11a to 14a in FIG. 1A).
  • it is adjusted to be slightly larger than the opening area ⁇ (indicated by hatching in FIG. 1A) of the mounting hole 10 when the protrusion is not inserted in FIGS.
  • the spring pieces 11 to 14 can be elastically deformed, and the elastic force of the spring pieces 11 to 14 acts on the protrusion 18. Therefore, the sliding contact 1 can be securely attached to the holder 17.
  • FIG. 2 shows a state in which the sliding contact 1 and the holder 17 in FIG.
  • the sliding contact 1 in this embodiment can be used for a variable resistor, for example.
  • the first conductive pattern 20 shown in FIG. 2 is a resistor, and the second conductive pattern 21 is a good conductor.
  • the first conductive pattern 20 is formed of, for example, a resistor coating film having carbon black or pulverized carbon fiber and a thermosetting resin such as a phenol resin or an epoxy resin as a binder resin.
  • the second conductive pattern 21 is formed by a conductive coating film having, for example, silver powder and a thermosetting resin as a binder resin.
  • a protective carbon coating film is provided on the conductive coating film.
  • the tip surface 2b1 of the first contact portion 2b and the tip surface 2c1 of the second contact portion 2c are relatively slid on the conductive patterns 20 and 21, respectively.
  • the input voltage applied to the first conductive pattern 20 is divided and connected to the second conductive pattern 21 according to the sliding position of the tip surface 2 b 1 of the first contact portion 2 b.
  • the position of the sliding contact 1 can be detected.
  • the sliding contact 1 may be on the moving side, and the substrate (not shown) on which the conductive patterns 20 and 21 are formed may be fixed. Alternatively, the substrate on which the conductive patterns 20 and 21 are formed is on the moving side. The form to which the sliding contact 1 is fixed may be sufficient.
  • the first conductive pattern 20 and the second conductive pattern 21 are formed in a straight strip shape having a constant width, but the first conductive pattern 20 and the second conductive pattern 21 are formed. It is not intended to limit the form.
  • the first conductive pattern 20 and the second conductive pattern 21 are formed in a ring shape (at this time, one is formed on the inner side and the other is formed on the outer side), thereby forming a rotation sensor.
  • the sliding contact 1 in the present embodiment is made of a bundle of carbon fibers 6 covered with a resin 5, and has a plate-like base portion 2a and a slider 2 having contact portions 2b and 2c extending from the base portion 2a, A metal plate 3 provided with an attachment portion (attachment hole 10) to a holder (slider holder) 17 and attached to a base portion 2a of the slider 2 is provided.
  • the metal plate 3 may be attached to the base 2a of the slider 2, there is no occurrence of burrs unlike the configuration in which the resin molded body is molded on the base 2a of the slider 2. Moreover, an expensive molding die is not required unlike a resin mold. Furthermore, between the base 2a of the slider 2 and the metal plate 3, the base 2a of the slider 2 and the metal plate 3 can be firmly joined without requiring a connection structure via another member. As described above, it is possible to make the sliding contact 1 excellent in reliability and productivity as compared with the prior art. Further, the manufacturing cost can be reduced.
  • the extending direction of the carbon fiber 6 is along the extending direction of the contact portion 2c (the same applies to the contact portion 2b).
  • the extending direction of the carbon fiber 6 is the extending direction of the contact portions 2b and 2c.
  • the conductive metal plate 3 since the conductive metal plate 3 is bonded to the base portion 2a, the electrical resistance to Y1-Y2 can be reduced, and the conductive pattern 20 at the position where the tip surfaces 2b1, 2c1 are in sliding contact with each other. , 21 can be reduced, and the detection accuracy can be improved.
  • the metal plate 3 is provided with a mounting portion (mounting hole 10) to the holder (slider holding body) 17 (see FIG. 1). 1 can be attached to the holder 17. Further, by attaching the metal plate 3 to the slider 2, it is possible to make up for the lack of strength compared to the single slider 2 and to prevent the slider 2 from being damaged during transportation. .
  • the attachment portion for the holder (slider holder) 17 provided on the metal plate 3 is the attachment hole 10 formed of a through hole, and the base portion 2 a of the slider 2.
  • An opening 15 facing the mounting hole 10 is formed, and a base 2 a surrounding the opening 15 is attached to the metal plate 3.
  • the protrusion 18 provided on the holder (slider holding body) 17 can be appropriately inserted into the mounting hole 10 of the metal plate 3 continuously penetrating from the opening 15 of the slider 2, and the protrusion can be easily and reliably performed. 18 can be fixed by the mounting hole 10.
  • the length of the protrusion 18 is formed long, and the protrusion 18 protruding from the attachment hole 10 of the metal plate 3 is deformed (crushed) and caulked. You may do it.
  • the entire opposing surfaces 2d and 3b excluding the attachment hole 10 of the metal plate 3 and the opening 15 of the base portion 2a of the slider 2 can be used as the pasting region, it is easy to ensure a wide pasting area, and the metal plate The sticking (adhesion) between 3 and the slider 2 can be ensured.
  • the metal plate 3 is made of an elastic metal plate, and a plurality of spring pieces 11 to 14 are provided in the mounting hole 10 as shown in FIGS. It is preferable.
  • the opening 15 formed in the base portion 2a of the slider 2 is larger than the mounting hole 10 excluding the spring pieces 11 to 14 (a size surrounded by the boundary portions 11a to 14a in FIG. 1A). It is preferable that it is formed. Accordingly, the protrusion 18 provided on the holder (slider holder) 17 can be easily and appropriately inserted into the mounting hole 10 while elastically deforming each of the spring pieces 11 to 14, and the sliding contact 1 is It can be securely attached to the holder 17 and the assemblability can be improved.
  • the projection 15 provided on the holder 17 is inserted into the mounting hole 10 by forming the opening 15 formed in the base portion 2a of the slider 2 larger than the mounting hole 10 excluding the spring pieces 11-14.
  • the protrusion 18 does not collide with the peripheral portion of the opening 15 formed in the slider 2, and the protrusion 18 can be inserted smoothly.
  • the spring pieces 11 to 14 are inserted. Even if elastically deformed, the force in the peeling direction is hardly applied between the slider 2 and the metal plate 3, and the sticking (adhesion) between the slider 2 and the metal plate 3 is maintained in a stable state. I can do it.
  • FIG. 4A is a plan view of a sliding contact in another embodiment different from FIG. 1A
  • FIG. 4B is a cross-sectional view taken along line CC in FIG. 4A
  • FIG. 4 (c) is a plan view of a state in which the holder is attached from the back side of the sliding contact shown in FIG. 4 (a), with the sliding contact seen from the arrow direction attached to the holder. 4 that are the same as those in FIG. 1 are denoted by the same reference numerals.
  • the metal plate 3 is attached to the base 2a of the slider 2 as well.
  • three spring pieces 11, 12, and 14 are provided on three sides around the mounting hole 33, as in FIG. 1A.
  • the spring piece 13 is not provided, and the end faces 33a, 33b of the mounting hole 33 at that position are constituted by two sides.
  • the end faces 33a and 33b are inclined with respect to the extending direction (X1-X2) of the contact portions 2b and 2c and the direction (Y1-Y2) perpendicular to the extending direction, respectively.
  • the positioning portion 25 is formed so as to protrude in an inward direction of the mounting hole 33 in a substantially triangular shape.
  • the positioning portion 25 is provided for positioning with the holder 17.
  • the positioning portion 25 is provided on the X2 side of the mounting hole 33 in the extending direction of the contact portions 2b and 2c. On the contrary, the positioning portion 25 is provided on the X1 side of the mounting hole 33. Also good.
  • the protrusion 34 provided on the surface of the holder 17 is inserted into the mounting hole 33 of the metal plate 3 continuously penetrating the opening 36 of the base 2a of the slider 2. .
  • the planar shape of the protrusion 34 is similar to the shape of the mounting hole 33, that is, a shape in which the portion of the positioning portion 25 is cut out from a rectangular shape.
  • the detection accuracy of the variable resistor can be improved.
  • the positioning portion 25 can be provided at a position other than the mounting hole 33, the positioning portion 25 is provided in the mounting hole 33 together with the spring pieces 11, 12, 14 as in the present embodiment. With a simple operation of inserting the provided protrusion 34 into the mounting hole 33, it is possible to perform positioning with high accuracy simultaneously with holding the sliding contact 1 on the holder 17.
  • the end surfaces 33a and 33b constituting the positioning portion 25 are made to extend in the extending direction (X1-X2) of the contact portions 2b and 2c and in the direction perpendicular to the extending direction (Y1-Y2). In this way, the contact between the holder 17 and the sliding contact 1 with respect to both the extending direction (X1-X2) and the orthogonal direction (Y1-Y2) of the contact portions 2b, 2c. Can be positioned with high accuracy.
  • FIG. 5 (a) is a plan view of a sliding contact in another embodiment different from FIGS. 1 (a) and 4 (a), and FIG. 5 (b) is a cross-sectional view of FIG.
  • FIG. 5C is a longitudinal sectional view of the state where the sliding contact is cut along the line and viewed from the direction of the arrow and is attached to the holder.
  • FIG. 5C is a state where the holder is attached from the back side of the sliding contact shown in FIG. FIG. 5 that are the same as those in FIGS. 1 and 4 are denoted by the same reference numerals.
  • the DD line shown in FIG. 5A is slightly on the Y2 side from the center of the mounting hole 26 so that the spring piece 28 appears in the cross section of FIG. 5B.
  • the mounting hole 26 is formed in a substantially diamond shape, and the contact portions 2b and 2c of the mounting hole 26 are extended.
  • Spring pieces 27, 28 are provided on two adjacent sides located on one side (X1 side) in the exit direction (X1-X2), and positioned on the adjacent end surfaces 26a, 26b located on the other side (X2 side).
  • Part 29 is configured.
  • it is good also as a structure which provided the end surface (positioning part) adjacent to one side (X1 side), and provided the spring piece in the other side (X2 side).
  • the protrusion 35 provided on the holder 17 is inserted into the mounting hole 26 of the metal plate 3 that continuously passes through the opening 15 of the base 2a of the slider 2.
  • the planar shape of the protrusion 35 is similar to the shape of the mounting hole 26, that is, a substantially rhombus shape.
  • the projection 35 of the holder 17 can be pressed against the end surfaces 26 a and 26 b constituting the positioning portion 29. And the sliding contact 1 can be accurately positioned.
  • the end surfaces 26a and 26b constituting the positioning portion 29 are orthogonal to the extending direction (X1-X2) and extending direction of the contact portions 2b and 2c. Is formed obliquely with respect to the direction (Y1-Y2) to be carried out, and thereby, the holder is secured to both the extending direction (X1-X2) and the orthogonal direction (Y1-Y2) of the contact portions 2b, 2c. 17 and the sliding contact 1 can be positioned with high accuracy.
  • spring pieces 11 to 14, 27, 28 are provided as attachment portions to the holder (slider holder) 17.
  • the mounting holes (10, 26, 33) are configured, but the present embodiment is not limited to these.
  • the metal plate 3 may be formed with an attachment hole made of a through hole in which no spring piece is provided, and this attachment hole may be used as the attachment portion.
  • a protrusion that is inserted through the mounting hole is provided on the holder 17 made of a resin molded body, and the tip of the protrusion that is inserted through the mounting hole and crimped to the metal plate 3 side (plastic deformation).
  • the sliding contact 1 can be attached to the holder 17.
  • the shape and the number of the mounting holes are not limited to the above embodiment, but may be circular or other mounting holes, and a plurality of mounting holes may be provided in the metal plate 3.
  • the mounting hole is not limited to the through hole.
  • a notch as a mounting hole may be formed in the metal plate 3, and a protrusion provided on the holder may be positioned in the notch, and the protrusion may be caulked.
  • the bundle of carbon fibers 6 constituting the slider 2 has a single-layer structure extending only in the X1-X2 direction.
  • FIG. A configuration in which three layers 30, 31, 32 of bundles of broken plate-like carbon fibers 6 are laminated is also possible.
  • the extending direction of the bundle of carbon fibers 6 provided on both surface layers 30 and 32 in the stacking direction of the slider 2 is along the extending direction (X1-X2) of the contact portion,
  • the extending direction of the bundle of carbon fibers 6 of the layer 31 located in the direction is oriented in the direction (Y1-Y2) perpendicular to the extending direction (X1-X2).
  • the resin 5 is also provided between the adjacent layers 30, 31, 32, and the three layers are integrated by the resin 5.
  • the carbon provided on both surface layers of the slider 2 is an odd layer.
  • the extending direction of the bundle of fibers 6 is preferably matched with the extending direction (X1-X2) of the contact portion.
  • the strength of the slider 2 can be improved, and the bundle of carbon fibers 6 positioned on both surfaces of the slider 2 can be extended. Since the extending direction is along the extending direction (X1-X2) of the contact portion, the slidability with the conductive patterns 20 and 21 shown in FIG. 2 can be improved.
  • FIG. 1 A manufacturing method of the sliding contact 1 (sliding contact having the shape of FIG. 1, where the sliding element has a three-layer structure shown in FIG. 3B) in the present embodiment with reference to FIGS. Will be explained.
  • 6 to 11 are perspective views
  • FIG. 12 is a plan view
  • FIG. 13 is a longitudinal sectional view.
  • a carbon fiber bundle 40 in which about 1000 to 15000 carbon fibers are bundled is placed on a support plate, for example, an aluminum foil 41.
  • the surface of the carbon fiber bundle 40 is impregnated with a solution 42 of a thermosetting resin.
  • a solution 42 of a thermosetting resin for example, there is a method of spraying a solution 42 of a thermosetting resin or immersing the carbon fiber bundle 40 in the solution.
  • FIG. 7 is a view in which a solution 42 of a thermosetting resin is sprayed, and is dripped evenly onto the carbon fiber bundle 40 (preparation of a prepreg).
  • thermosetting resin triphenyl glycidyl ether methane (Tri-PGEM), cresol novolac epoxy, tetraglycidyl diaminophenyl methane (Tet-GDDM), tetraphenyl glycidyl ether ethane (Tet).
  • Tri-PGEM triphenyl glycidyl ether methane
  • Tet-GDDM cresol novolac epoxy
  • Tet-GDDM tetraglycidyl diaminophenyl methane
  • Tet tetraphenyl glycidyl ether ethane
  • -PGEE at least one flexible epoxy of bisphenol epoxy resin, dimer acid type epoxy resin, linear aliphatic epoxy, diaminodiphenylsulfone (DDS), acid anhydride as curing agent
  • DDS diaminodiphenylsulfone
  • DIY dicyandiamide
  • DDS diaminodiphenylsulfone
  • Tri-PGEM triferyl glycidyl ether methane
  • the extending direction (X1-X2) of the carbon fiber bundle 40 in a state where the end face 43a excellent in smoothness of the thin metal plate 43 such as a brass plate is lightly pressed against the carbon fiber bundle 40.
  • the plate 43 is moved in the extending direction (X1-X2) of the carbon fiber bundle 40 while finely vibrating the plate 43 in a direction (Y1-Y2) perpendicular to the direction (see symbol E in FIG. 8) (FIG. 8). (See reference numeral F and dotted line reference 43).
  • the carbon fiber bundle 40 gradually spreads in the Y1-Y2 direction and becomes thinner, so that the gap between the carbon fibers can be loosened. Thereby, the carbon fiber bundle 40 can be made flat.
  • the carbon fiber bundle 40 impregnated with resin is placed on a hot plate 44 and dried.
  • the temperature is around 100 ° C., and the time is from several minutes to several tens of minutes.
  • the remaining carbon fiber bundles are denoted by 45 and 46.
  • the aluminum foil 41 is peeled off from the carbon fiber bundles 45 and 46 immediately after drying.
  • one carbon fiber bundle 45 is cut from a direction orthogonal to the extending direction of the carbon fiber bundle 45 to produce a plurality of carbon fiber bundle pieces 45a to 45c as shown in FIG.
  • the length L1 of each of the carbon fiber bundle pieces 45a to 45c is the width T1 ( It is preferable to adjust so as to be substantially the same as the width in the direction orthogonal to the extending direction of the carbon fiber bundle.
  • the carbon fiber bundle pieces 45a to 45c are arranged on the carbon fiber bundle 40.
  • the extending direction of the carbon fiber in each of the carbon fiber bundle pieces 45a to 45c is determined according to the carbon fiber bundle 40. Is orthogonal to the extending direction (X1-X2).
  • a carbon fiber bundle 46 in which the extending direction of the carbon fiber bundle is orthogonal to each of the carbon fiber bundle pieces 45a to 45c is further superimposed on each of the carbon fiber bundle pieces 45a to 45c.
  • stacked the layer of each carbon fiber bundle is dried on the hotplate 44, as shown in FIG.
  • the carbon fiber bundles 40, 45, 46 can be joined (adhered) with the resin impregnated so as not to separate the respective layers.
  • the temperature is around 100 ° C., and the time is from several minutes to several tens of minutes.
  • the carbon fiber bundle laminate 47 is peeled off from the aluminum foil 41.
  • the carbon fiber bundle laminate (prepreg) 47 is cut into a predetermined shape using, for example, a YAG laser L.
  • the YAG laser L is preferably of a type called FAYb that amplifies the laser with ytterbium.
  • the carbon fiber bundle laminate (prepreg) 47 is externally processed into the shape of three sliders 2.
  • the connecting portions 50 are left between the sliders 2 so that the sliders 2 do not fall apart. However, the connecting portions 50 may be left and cut last. And the part of the connection part 50 may also be cut
  • each slider 2 is cut into the shape of contact portions 2b and 2c extending from the base portion 2a and the base portion 2a.
  • An opening 15 and a positioning hole 19 are formed in the base portion 2a.
  • the slider 2 shown in FIG. 13 has a cross-sectional shape of the slider 2 that appears by cutting along the cutting line G shown in FIG. The same applies to the metal plate 3 stacked on the slider 2.
  • the lower mold 52 of the press die 51 is provided with a positioning projection 52a, and this positioning projection 52a is passed through the positioning hole 19 formed in the slider 2 in the process of FIG.
  • a release sheet 53 is interposed between the lower mold 52 and the slider 2. Note that the release sheet 53 is disposed on the lower surface of the slider 2 through the positioning projection 52a through the hole formed in the release sheet 53.
  • the release sheet 54 is opposed to the slider 2 and the metal plate 3. Similarly to the release sheet 53, the release sheet 54 is also formed with a through hole 54a through which the positioning protrusion 52a passes.
  • a transparent fluororesin film having excellent heat resistance for example, Aflex (registered trademark) manufactured by Asahi Glass Co., Ltd.
  • Aflex registered trademark manufactured by Asahi Glass Co., Ltd.
  • an upper die 55 of a press die 51 as a heat press device is set, and release sheets 53 and 54 are arranged above and below the sliding contact 1 composed of the slider 2 and the metal plate 3, and FIG. Hot press in the process.
  • the heating temperature (heat treatment temperature) of the hot press in the step of FIG. 14 is higher than the drying temperature in the drying step shown in FIGS. 9 and 11, and is about several hundred degrees (for example, 180 ° C. to 250 ° C.).
  • the heating time is about several tens of minutes (for example, 20 to 50 minutes).
  • the contact portions 2b and 2c of the slider 2 are three-dimensionally formed by hot pressing in the step of FIG. 14, and at this time, the uncured thermosetting resin is heat-cured. As the thermosetting resin is heat-cured, the carbon fiber bundles 40, 45, and 46 are completely joined (mainly bonded) and integrated by the cured resin.
  • the metal plate 3 is hot-pressed with the plate-like base 2a of the slider 2 being overlaid. Thereby, simultaneously with the heat curing of the thermosetting resin, the metal plate 3 can be appropriately adhered to the base portion 2a of the slider 2 by the resin impregnated in the carbon fiber bundle constituting the slider 2 it can.
  • the release sheets 53 and 54 are interposed between the sliding contact 1 and the press die 51, so that the uncured thermosetting resin does not adhere to the press die 51. Therefore, as shown in FIG. 15, the sliding contact 1 can be appropriately taken out from the press die 51. Then, the release sheets 53 and 54 are peeled from the sliding contact 1.
  • connection structure by another member between the base 2a of the slider 2 and the metal plate 3, or the base 2a of the slider 2 and the metal plate 3 is used. Even without using a new adhesive for joining the two, a resin impregnated in a carbon fiber bundle is used to form a metal on the base 2a of the slider 2 in the molding process of the slider 2 by hot pressing.
  • the plate 3 can be attached easily and reliably.
  • the slider connection body in which the sliders 2 are connected via the connecting portions 50 is placed in the mold in the metal plate 3 and the release sheet (for example, corresponding to each slider 2).
  • the release sheets are arranged one by one on the top and bottom of the slider connection body), and three-dimensional forming and the metal plate 3 can be applied to each slider 2 at a time.
  • the resin impregnated in the carbon fiber bundle 40 in the step of FIG. 7 is not limited to the thermosetting resin, and may be a thermoplastic resin.
  • a thermoplastic resin used as the resin, it may be a molten resin that is liquefied by heating the thermoplastic resin, instead of the thermosetting resin solution 42 in FIG. The drying process can be omitted.
  • the molding process by the hot press in FIG. 14 is a process in which the resin (thermoplastic resin) in the slider (prepreg) 2 formed by impregnating the carbon fiber bundle with the thermoplastic resin is heated and deformed. Although forming by hot pressing can be performed, the heating temperature and the heating time are adjusted in consideration of the attachment (adhesion) of the metal plate 3 to the slider 2.
  • the thermoplastic resin include polyamide resin, PPS resin, PBT resin, and the like.
  • thermosetting resin in order to perform affixing (adhesion) between the stable slider 2 and the metal plate 3.

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  • Engineering & Computer Science (AREA)
  • Composite Materials (AREA)
  • Materials Engineering (AREA)
  • Dispersion Chemistry (AREA)
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Abstract

[Problem] The purpose of the present invention is to provide: a sliding contact which has particularly excellent reliability and productivity in comparison to conventional sliding contacts; and a method for producing the sliding contact. [Solution] A sliding contact (1) as an embodiment of the present invention is characterized by being provided with: a slider (2) that has a plate-like base (2a), which is formed of a carbon fiber bundle that is covered with a resin, and contact portions (2b, 2c) that extend from the base (2a); and a mounting hole (mounting portion) (10) to a holder (slider holding body) (17). The sliding contact (1) is also characterized by having a metal plate (3) that is bonded to the base (2a) of the slider (2).

Description

摺動接点及びその製造方法Sliding contact and manufacturing method thereof
　本発明は、炭素繊維束を備える摺動接点及びその製造方法に関する。 The present invention relates to a sliding contact provided with a carbon fiber bundle and a manufacturing method thereof.
　下記特許文献１には摺動接点の製造方法に関する発明が開示されている。
　特許文献１には、摺動接点を取り扱いやすくするために、炭素繊維束に樹脂を含浸させた摺動子の基部に樹脂モールドによるホルダを設けている。 Patent Document 1 below discloses an invention relating to a method for manufacturing a sliding contact.
In Patent Document 1, a holder made of a resin mold is provided at the base of a slider obtained by impregnating a carbon fiber bundle with resin in order to facilitate handling of the sliding contact.
　しかしながら、樹脂モールドによりホルダを設けた構成では、ホルダ成形時にバリが発生しやすく、また高価な成形金型を必要とするために、信頼性や生産性の低下、及びコスト高の問題があった。 However, in the configuration in which the holder is provided by the resin mold, burrs are easily generated at the time of forming the holder, and an expensive molding die is required, so there are problems of reliability and productivity reduction and high cost. .
　また炭素繊維束の延出方向（特許文献１の例えば図１に示す脚部２ｃ，２ｄの延出方向）と交差する方向への電気抵抗が比較的高いため、交差方向への電気抵抗を低くできる構造が望まれた。 Further, since the electric resistance in the direction intersecting with the extending direction of the carbon fiber bundle (for example, the extending direction of the legs 2c and 2d shown in FIG. 1 of Patent Document 1) is relatively high, the electric resistance in the intersecting direction is low. A possible structure was desired.
特開２００８－２７６９６５号公報JP 2008-276965 A
　そこで本発明は上記従来の課題を解決するためのものであり、特に、従来に比べて、信頼性及び生産性に優れた摺動接点及びその製造方法を提供することを目的としている。 Therefore, the present invention is intended to solve the above-described conventional problems, and in particular, an object of the present invention is to provide a sliding contact excellent in reliability and productivity and a method for manufacturing the same as compared with the related art.
　本発明における摺動接点は、
　樹脂に覆われた炭素繊維束からなり、板状の基部及び前記基部から延出された接点部を有する摺動子と、摺動子保持体への取付部を備え、前記摺動子の前記基部に貼り付けられた金属板と、を有することを特徴とするものである。 The sliding contact in the present invention is
The slider comprises a carbon fiber bundle covered with resin, and includes a slider having a plate-like base portion and a contact portion extending from the base portion, and an attachment portion to a slider holder, and the slider And a metal plate attached to the base.
　本発明では、摺動子の基部へ金属板を貼り付ける構造で済むため、摺動子の基部に樹脂成形体をモールドした構成と異なってバリの発生がなく、また樹脂モールドのように高価な成形金型を必要としない。更に、摺動子の基部と金属板間に他部材を介した接続構造を必要とせずに、しっかりと摺動子の基部と金属板間を接合することができる。以上により、従来に比べて、信頼性及び生産性に優れた摺動接点にできる。また製造コストを低減できる。また本発明のように金属板を摺動子の基部に貼り付けたことで、基部から接点部への延出方向と交差する方向への電気抵抗を効果的に小さくできる。また金属板に摺動子保持体への取付部を備えた構成であるから、直接且つ安定して、摺動接点を摺動子保持体へ取り付けることができる。 In the present invention, since a structure in which a metal plate is attached to the base of the slider is sufficient, unlike the configuration in which a resin molded body is molded on the base of the slider, there is no occurrence of burrs, and it is expensive like a resin mold. Does not require a mold. Furthermore, it is possible to firmly join the base of the slider and the metal plate without requiring a connection structure via another member between the base of the slider and the metal plate. As described above, it is possible to make the sliding contact superior in reliability and productivity as compared with the conventional case. Further, the manufacturing cost can be reduced. Further, by attaching the metal plate to the base portion of the slider as in the present invention, the electric resistance in the direction intersecting with the extending direction from the base portion to the contact portion can be effectively reduced. In addition, since the metal plate is provided with an attachment portion to the slider holder, the sliding contact can be directly and stably attached to the slider holder.
　本発明では、前記摺動子の基部と前記金属板とは、前記炭素繊維束を覆う前記樹脂により貼り付けられていることが好ましい。摺動子の基部と金属板間を貼り付ける樹脂と、炭素繊維束を覆う樹脂とが同一であるため、摺動子と金属板間の貼付（接着）強度を高めることができる。 In the present invention, it is preferable that the base portion of the slider and the metal plate are attached by the resin covering the carbon fiber bundle. Since the resin for bonding between the base of the slider and the metal plate is the same as the resin for covering the carbon fiber bundle, the adhesion (adhesion) strength between the slider and the metal plate can be increased.
　また本発明では、前記取付部は、貫通孔からなる取付孔であり、前記摺動子の前記基部には、前記取付孔と対向する位置に開口が形成されており、前記開口を囲む前記基部が前記金属板に貼り付けられていることが好ましい。これにより、例えば、摺動子保持体に設けた突起を、摺動子の開口と連続して貫通する金属板の取付孔に挿入し、必要に応じて突起をかしめることで簡単且つ確実に摺動接点を摺動子保持体に固定することができる。また、金属板の取付孔及び、摺動子の基部の開口を除く各対向面全体を貼付領域として用いることができるため、広い貼付面積を確保しやすく、金属板と摺動子間の貼付（接着）を確実なものにできる。 In the present invention, the mounting portion is a mounting hole including a through hole, and an opening is formed at a position facing the mounting hole in the base portion of the slider, and the base portion surrounding the opening Is preferably affixed to the metal plate. Thereby, for example, the protrusion provided on the slider holder is inserted into the mounting hole of the metal plate continuously penetrating the opening of the slider, and the protrusion is caulked as necessary, thereby easily and reliably. The sliding contact can be fixed to the slider holder. In addition, since the entire opposing surface excluding the mounting hole of the metal plate and the opening of the base of the slider can be used as the pasting region, it is easy to secure a wide pasting area, and the pasting between the metal plate and the slider ( Adhesion) can be ensured.
　また本発明では、前記金属板は弾性を有する金属板からなり、前記取付孔の周囲の少なくとも一部には、前記金属板が平面視にて取付孔内に延出してなるばね片が設けられており、前記摺動子に設けられた前記開口は、前記ばね片を除いた前記取付孔よりも大きく形成されていることが好ましい。ばね片を弾性変形させながら、摺動子保持体に設けた突起を取付孔に挿入することができ、摺動接点を摺動子取付部にしっかりと取り付けることができ、組立性を向上させることができる。また、摺動子の基部に形成した開口を、ばね片を除く取付孔よりも大きく形成したため、摺動子保持体に設けた突起を取付孔に挿入するときに、前記突起が摺動子に形成された開口の周辺部にぶつからず、突起をスムースに挿入でき、また摺動保持体に設けた突起の挿入により、ばね片が弾性変形しても、摺動子と金属板との間に剥がれ方向への力が作用しにくく、摺動子と金属板間の貼付（接着）を安定した状態に維持することが出来る。 In the present invention, the metal plate is made of an elastic metal plate, and at least a part of the periphery of the mounting hole is provided with a spring piece formed by extending the metal plate into the mounting hole in plan view. The opening provided in the slider is preferably formed larger than the mounting hole excluding the spring piece. While the spring piece is elastically deformed, the protrusion provided on the slider holder can be inserted into the mounting hole, and the sliding contact can be firmly attached to the slider mounting part, improving the assembly. Can do. In addition, since the opening formed in the base of the slider is formed larger than the mounting hole excluding the spring piece, when the protrusion provided on the slider holder is inserted into the mounting hole, the protrusion is formed on the slider. The protrusion can be inserted smoothly without hitting the periphery of the formed opening, and even if the spring piece is elastically deformed due to the insertion of the protrusion provided on the slide holder, it can be inserted between the slider and the metal plate. A force in the peeling direction hardly acts, and the sticking (adhesion) between the slider and the metal plate can be maintained in a stable state.
　また本発明では、前記ばね片は、前記取付孔の周囲の一部に設けられており、前記ばね片が形成されていない前記取付孔の端面に前記摺動子保持体との位置決め部が設けられていることが好ましい。摺動接点を高精度に摺動子保持体に取り付けることができ、例えば本発明の摺動接点を可変抵抗器に適用することで、可変抵抗器の検出精度を向上させることができる。また、位置決め部を取付孔にばね片とともに設けることで、摺動子保持体に設けた突起を取付孔に挿入する簡単な作業により、摺動接点の摺動子保持体への固定と同時に、位置決めを高精度に行うことが出来る。 In the present invention, the spring piece is provided in a part of the periphery of the mounting hole, and a positioning portion for the slider holder is provided on an end surface of the mounting hole where the spring piece is not formed. It is preferable that The sliding contact can be attached to the slider holder with high accuracy. For example, by applying the sliding contact of the present invention to the variable resistor, the detection accuracy of the variable resistor can be improved. In addition, by providing the positioning part with the spring piece in the mounting hole, the sliding contact is fixed to the slider holding body simultaneously with the simple operation of inserting the protrusion provided on the slider holding body into the mounting hole. Positioning can be performed with high accuracy.
　また本発明では、前記位置決め部を構成する前記端面は、前記接点部の延出方向及び前記延出方向に直交する方向に対して斜めに形成されていることが好ましい。これにより、接点部の延出方向及び前記直交する方向の両方向に対して高精度に摺動接点と摺動子保持体間を位置決めすることができる。 In the present invention, it is preferable that the end surface constituting the positioning portion is formed obliquely with respect to the extending direction of the contact portion and the direction orthogonal to the extending direction. Thus, the sliding contact and the slider holder can be positioned with high accuracy in both the extending direction of the contact portion and the orthogonal direction.
　また本発明では、前記金属板には、前記摺動子保持体との位置決め部が設けられていることが好ましい。これにより、摺動接点を高精度に摺動子保持体に取り付けることができ、例えば本発明の摺動接点を可変抵抗器に適用することで、可変抵抗器の検出精度を向上させることができる。なお、この発明では、位置決め部を摺動子保持体への取付部以外の位置に設けることができる。 In the present invention, it is preferable that the metal plate is provided with a positioning portion with respect to the slider holder. Thereby, the sliding contact can be attached to the slider holder with high accuracy. For example, the detection accuracy of the variable resistor can be improved by applying the sliding contact of the present invention to the variable resistor. . In the present invention, the positioning portion can be provided at a position other than the attachment portion to the slider holder.
　また本発明では、前記摺動子は、前記樹脂で覆われた前記炭素繊維束の板状の層が少なくとも３層、積層されており、隣り合う層の前記炭素繊維束の延出方向が交互となるように構成されており、積層方向における前記摺動子の両表層の前記炭素繊維束は、前記接点部の延出方向に沿って延出していることが好ましい。これにより摺動子の強度を高めることができる。また抵抗体等の導電パターンとの摺動性を良好に出来る。 In the present invention, at least three plate-like layers of the carbon fiber bundles covered with the resin are stacked in the slider, and the extending directions of the carbon fiber bundles of adjacent layers are alternated. Preferably, the carbon fiber bundles on both surface layers of the slider in the stacking direction extend along the extending direction of the contact portion. Thereby, the strength of the slider can be increased. In addition, slidability with a conductive pattern such as a resistor can be improved.
　また本発明における摺動接点の製造方法は、
　炭素繊維束に樹脂を含浸させる工程と、
　前記樹脂を含浸させた前記炭素繊維束を、板状の基部と前記基部から延出した接点部とを有する摺動子の形状に加工する工程と、
　前記摺動子の前記基部に摺動子保持体への取付部を備える金属板を重ねた状態で、熱プレスし、このとき、前記樹脂により前記金属板を前記摺動子の前記基部に貼り付ける成形工程と、
　を有することを特徴とするものである。このように摺動子の基部と金属板間に例えば別部材による接続構造や、あるいは摺動子の基部と金属板間を接合するために新たな接着剤を用いなくても、炭素繊維束に含浸させた樹脂を利用して、熱プレスによる摺動子の成形工程で、摺動子の基部に金属板を簡単且つ確実に貼り付けることができる。 In addition, the manufacturing method of the sliding contact in the present invention is as follows.
Impregnating the carbon fiber bundle with resin;
Processing the carbon fiber bundle impregnated with the resin into the shape of a slider having a plate-like base portion and a contact portion extending from the base portion;
In a state where a metal plate provided with an attachment portion to the slider holder is superposed on the base portion of the slider, hot pressing is performed, and at this time, the metal plate is attached to the base portion of the slider with the resin. Attaching molding process,
It is characterized by having. In this way, a connection structure using a separate member, for example, between the base of the slider and the metal plate, or a carbon fiber bundle without using a new adhesive to join the base of the slider and the metal plate. Using the impregnated resin, the metal plate can be easily and reliably attached to the base of the slider in the slider forming process by hot pressing.
　また本発明では、前記樹脂は熱硬化樹脂であり、前記熱プレスにより、前記熱硬化樹脂の加熱硬化と同時に前記金属板を前記摺動子の前記基部に貼り付けることが好ましい。摺動子の成形加工と、金属板と摺動子の基部間の貼付（接着）との双方を簡単且つ安定して行うことができ、生産性を効果的に向上させることができる。 In the present invention, the resin is a thermosetting resin, and it is preferable that the metal plate is attached to the base portion of the slider simultaneously with the heat curing of the thermosetting resin by the hot pressing. Both the forming process of the slider and the sticking (adhesion) between the metal plate and the base of the slider can be performed easily and stably, and the productivity can be effectively improved.
　また本発明では、前記摺動子の基部に金属板を重ね合わせた摺動接点の両表面に離型シートを配置した状態で、前記熱プレスを行うことが好ましい。熱プレスにより樹脂が滲み出ても、プレス金型と摺動接点の間に離型シートが介在するため、プレス金型側に樹脂が付着せず、熱プレス後、適切にプレス金型から摺動接点を取り出すことができ生産性を向上させることができる。 In the present invention, it is preferable to perform the hot pressing in a state where release sheets are arranged on both surfaces of the sliding contact obtained by superimposing a metal plate on the base of the slider. Even if the resin oozes out by hot pressing, the release sheet is interposed between the press die and the sliding contact, so the resin does not adhere to the press die side, and after hot pressing, the resin is properly slid from the press die. A moving contact can be taken out and productivity can be improved.
　本発明によれば、従来に比べて、信頼性及び生産性に優れた摺動接点にできる。また製造コストを低減できる。さらに基部から接点部への延出方向と交差する方向への電気抵抗を効果的に小さくできる。 According to the present invention, the sliding contact can be made superior in reliability and productivity as compared with the prior art. Further, the manufacturing cost can be reduced. Furthermore, the electrical resistance in the direction intersecting with the extending direction from the base portion to the contact portion can be effectively reduced.
　また本発明の摺動接点の製造方法によれば、摺動子の基部と金属板間に例えば別部材による接続構造や、あるいは摺動子の基部と金属板間を接合するために新たな接着剤を用いなくても、炭素繊維束に含浸させた樹脂を利用して、熱プレスによる摺動子の成形工程で、摺動子の基部に金属板を簡単且つ確実に貼り付けることができる。 Further, according to the manufacturing method of the sliding contact of the present invention, a new bonding structure is used for joining the base portion of the slider and the metal plate, for example, a connection structure using a separate member, or between the base portion of the slider and the metal plate. Even if no agent is used, the metal plate can be easily and reliably attached to the base of the slider in the step of forming the slider by hot press using the resin impregnated in the carbon fiber bundle.
図１（ａ）は、本発明の実施形態における摺動接点の平面図、図１（ｂ）は、図１（ａ）に示す摺動接点をＡ－Ａ線に沿って切断し矢印方向から見た縦断面図、図１（ｃ）は、図１（ａ）に示す摺動接点をＢ－Ｂ線に沿って切断し矢印方向から見た縦断面図、図１（ｄ）は、図１（ａ）に示す摺動接点をホルダ（摺動子保持体）に固定した状態を示す図１（ｃ）と同じ位置での切断面を示す縦断面図である。FIG. 1A is a plan view of a sliding contact in the embodiment of the present invention, and FIG. 1B is a sectional view of the sliding contact shown in FIG. FIG. 1C is a longitudinal sectional view, and FIG. 1C is a longitudinal sectional view of the sliding contact shown in FIG. 1A cut along the line BB and viewed from the direction of the arrow. FIG. It is a longitudinal cross-sectional view which shows the cut surface in the same position as FIG.1 (c) which shows the state which fixed the sliding contact shown to 1 (a) to the holder (slider holding body). 本実施形態の摺動接点と、第１の導電パターンと第２の導電パターンの斜視図である。It is a perspective view of the sliding contact of this embodiment, a 1st conductive pattern, and a 2nd conductive pattern. 図３（ａ）（ｂ）は、図１（ｂ）～（ｄ）の切断面に現れる摺動子の断面構造の一例（部分拡大縦断面図）である。3 (a) and 3 (b) are examples (partially enlarged longitudinal sectional views) of the cross-sectional structure of the slider appearing on the cut surfaces of FIGS. 1 (b) to 1 (d). 図４（ａ）は、図１（ａ）とは異なる他の実施形態における摺動接点の平面図、図４（ｂ）は、図４（ａ）を、Ｃ－Ｃ線に沿って切断し矢印方向から見た摺動接点をホルダ（摺動子保持体）に取り付けた状態の縦断面図、図４（ｃ）は、図４（ａ）に示す摺動接点の裏側からホルダ（摺動子保持体）を取り付けた状態の平面図である。4A is a plan view of a sliding contact in another embodiment different from FIG. 1A, and FIG. 4B is a cross-sectional view taken along line CC in FIG. 4A. FIG. 4C is a longitudinal sectional view showing a state in which the sliding contact as viewed from the direction of the arrow is attached to the holder (slider holder), and FIG. 4C shows the holder (sliding from the back side of the sliding contact shown in FIG. It is a top view of the state which attached the child holding body. 図５（ａ）は、図１（ａ）、図４（ａ）とは異なる他の実施形態における摺動接点の平面図、図５（ｂ）は、図５（ａ）を、Ｄ－Ｄ線に沿って切断し矢印方向から見た摺動接点をホルダ（摺動子保持体）に取り付けた状態の縦断面図、図５（ｃ）は、図５（ａ）に示す摺動接点の裏側からホルダを取り付けた状態の平面図である。5 (a) is a plan view of a sliding contact in another embodiment different from FIGS. 1 (a) and 4 (a), and FIG. 5 (b) is a cross-sectional view of FIG. FIG. 5C is a longitudinal sectional view showing a state in which the sliding contact cut along the line and viewed from the direction of the arrow is attached to the holder (slider holder). FIG. 5C is a view of the sliding contact shown in FIG. It is a top view of the state which attached the holder from the back side. 本実施形態における摺動接点の製造方法を説明するための工程図（斜視図）である。It is process drawing (perspective view) for demonstrating the manufacturing method of the sliding contact in this embodiment. 図６の次に行われる工程図（斜視図）である。It is process drawing (perspective view) performed after FIG. 図７の次に行われる工程図（斜視図）である。It is process drawing (perspective view) performed after FIG. 図８の次に行われる工程図（斜視図）である。It is process drawing (perspective view) performed after FIG. 図９の次に行われる工程図（斜視図）である。FIG. 10 is a process diagram (perspective view) performed subsequent to FIG. 9; 図１０の次に行われる工程図（斜視図）である。It is process drawing (perspective view) performed after FIG. 図１１の次に行われる工程図（平面図）である。FIG. 12 is a process diagram (plan view) performed after FIG. 11. 図１２の次に行われる工程図（縦断面図）である。FIG. 13 is a process diagram (longitudinal sectional view) performed subsequent to FIG. 12; 図１３の次に行われる工程図（縦断面図）である。FIG. 14 is a process diagram (longitudinal sectional view) performed subsequent to FIG. 13; 図１４の次に行われる工程図（縦断面図）である。FIG. 15 is a process diagram (longitudinal sectional view) performed subsequent to FIG. 14.
　図１（ａ）は、本発明の実施形態における摺動接点の平面図、図１（ｂ）は、図１（ａ）に示す摺動接点をＡ－Ａ線に沿って切断し矢印方向から見た縦断面図、図１（ｃ）は、図１（ａ）に示す摺動接点をＢ－Ｂ線に沿って切断し矢印方向から見た縦断面図、図１（ｄ）は、図１（ａ）に示す摺動接点をホルダ（摺動子保持体）に固定した状態を、図１（ｃ）と同じ位置での切断面で示す縦断面図である。図２は、本実施形態の摺動接点と、第１の導電パターンと第２の導電パターンの斜視図である。図３（ａ）（ｂ）は、図１（ｂ）～（ｄ）の切断面に現れる摺動子の断面構造の一例（部分拡大縦断面図）である。 FIG. 1A is a plan view of a sliding contact in the embodiment of the present invention, and FIG. 1B is a sectional view of the sliding contact shown in FIG. FIG. 1C is a longitudinal sectional view, and FIG. 1C is a longitudinal sectional view of the sliding contact shown in FIG. 1A cut along the line BB and viewed from the direction of the arrow. FIG. It is a longitudinal cross-sectional view which shows the state which fixed the sliding contact shown to 1 (a) to the holder (slider holding body) in the cut surface in the same position as FIG.1 (c). FIG. 2 is a perspective view of the sliding contact, the first conductive pattern, and the second conductive pattern of the present embodiment. 3 (a) and 3 (b) are examples (partially enlarged longitudinal sectional views) of the cross-sectional structure of the slider appearing on the cut surfaces of FIGS. 1 (b) to 1 (d).
　なお平面図とした図１（ａ）では、図１（ｂ）にも示すように、各接点部２ｂ，２ｃの先端面２ｂ１，２ｃ１が図示上方向となるように折り曲げられているが、図２に示す使用形態では、図１（ａ）の摺動接点１を裏返して、すなわち先端面２ｂ１、２ｃ１を下向きとしている。 In FIG. 1 (a), which is a plan view, as shown in FIG. 1 (b), the front end surfaces 2b1 and 2c1 of the contact portions 2b and 2c are bent so as to be in the upward direction in the drawing. In the usage mode shown in FIG. 2, the sliding contact 1 of FIG. 1A is turned over, that is, the front end surfaces 2b1 and 2c1 are directed downward.
　図１に示す摺動接点１は、摺動子２と、金属板３とを有して構成される。
　前記摺動子２は、図３（ａ）に示すように多数本の炭素繊維６（図３（ａ）では一本の炭素繊維にのみ符号を付した）の束が樹脂５によって被覆されたものである。樹脂５は隣り合う炭素繊維６間の隙間にも入り込んでいる。 A sliding contact 1 shown in FIG. 1 includes a slider 2 and a metal plate 3.
In the slider 2, as shown in FIG. 3A, a bundle of a large number of carbon fibers 6 (in FIG. 3A, only one carbon fiber is marked) is covered with a resin 5. Is. Resin 5 also enters the gap between adjacent carbon fibers 6.
　前記樹脂５には、熱硬化性樹脂として、トリフェニルグリシジルエーテルメタン（Ｔｒｉ－ＰＧＥＭ）、クレゾールノボラックエポキシ、テトラグリシジルジアミノフェニルメタン（Ｔｅｔ－ＧＤＤＭ）、テトラフェニルグリシジルエーテルエタン（Ｔｅｔ－ＰＧＥＥ）のうち少なくともいずれか１種と、ビスフェノールエポキシ樹脂、ダイマー酸型エポキシ樹脂、線状脂肪族エポキシの少なくとも１種の柔軟性エポキシと、硬化剤としてジアミノジフェニルスルフォン（ＤＤＳ）、酸無水物、ジシアンジアミド（ＤＩＣＹ）のうち少なくともいずれか１種とを用いることが好適である。
　ただし樹脂５は、熱硬化性樹脂に限定されず、熱可塑性樹脂であってもよい。 The resin 5 includes, as thermosetting resins, triphenyl glycidyl ether methane (Tri-PGEM), cresol novolac epoxy, tetraglycidyl diaminophenyl methane (Tet-GDDM), tetraphenyl glycidyl ether ethane (Tet-PGEE). At least one of them, at least one flexible epoxy of bisphenol epoxy resin, dimer acid type epoxy resin, linear aliphatic epoxy, diaminodiphenylsulfone (DDS), acid anhydride, dicyandiamide (DICY) as a curing agent Among these, it is preferable to use at least one of them.
However, the resin 5 is not limited to a thermosetting resin, and may be a thermoplastic resin.
　また、１０００～１５０００本程度の炭素繊維６の束が用いられ、各炭素繊維６の直径は数μｍ～数１０μｍの範囲であることが好適である。 Also, a bundle of about 1000 to 15000 carbon fibers 6 is used, and the diameter of each carbon fiber 6 is preferably in the range of several μm to several tens of μm.
　図１に示す摺動子２は板状で形成され、先端と後述するばね片１１～１４を除いて表面が平らである。図１（ａ）に示すように摺動子２は、板状の基部２ａと、基部２ａからＹ１－Ｙ２方向に間隔を空けてＸ１方向に延出する第１の接点部２ｂと第２の接点部２ｃとを有して構成される。 The slider 2 shown in FIG. 1 is formed in a plate shape, and the surface is flat except for the tip and spring pieces 11 to 14 described later. As shown in FIG. 1A, the slider 2 includes a plate-like base portion 2a, a first contact portion 2b extending from the base portion 2a in the X1-direction at an interval in the Y1-Y2 direction, and a second contact portion 2b. And a contact portion 2c.
　図１（ａ）（ｂ）に示すように、各接点部２ｂ，２ｃの先端は所定角度に折り曲げられている。図１（ａ）（ｂ）に示す先端面２ｂ１，２ｃ１は、切断面であり、この先端面２ｂ１，２ｃ１からは前記樹脂５とともに炭素繊維６の表面が露出している。なお図１（ａ）（ｂ）では、各接点部２ｂ，２ｃの先端のみを折り曲げているが、各接点部２ｂ，２ｃの根元付近から折り曲げてもよいし、どのような形状に折り曲げるかは使用形態により種々変更可能である。 As shown in FIGS. 1 (a) and 1 (b), the tips of the contact portions 2b and 2c are bent at a predetermined angle. End surfaces 2b1 and 2c1 shown in FIGS. 1A and 1B are cut surfaces, and the surface of the carbon fiber 6 is exposed along with the resin 5 from the end surfaces 2b1 and 2c1. In FIGS. 1A and 1B, only the tips of the contact portions 2b and 2c are bent. However, the contact portions 2b and 2c may be bent from the vicinity of the roots, and what shape is bent. Various changes can be made depending on the form of use.
　金属板３は弾性を有する平板状の金属板であることが好適である。金属板３にはリン青銅やステンレス等を用いることが好適である。 The metal plate 3 is preferably a flat metal plate having elasticity. The metal plate 3 is preferably made of phosphor bronze, stainless steel or the like.
　図１に示すように、金属板３には、高さ方向（金属板３の厚さ方向）に貫通する取付孔１０が設けられている。取付孔１０は例えば金属板３の略中央に設けられる。図１（ａ）（ｃ）に示すように、取付孔１０内には金属板３を切り起こして斜め上方に折り曲げた４つのばね片１１～１４が設けられている。この実施形態では、各ばね片１１～１４の折り曲げ方向と、各接点部２ｂ，２ｃの先端の折り曲げ方向とを同じにしている。各ばね片１１～１４は、弾性変形可能である。図１（ａ）（ｃ）に示すように、取付孔１０のＸ１側にばね片１１、Ｙ１側にばね片１２、Ｘ２側にばね片１３及びＹ２側にばね片１４が夫々、設けられている。図１（ａ）に示すように、金属板３の平面部３ａ（Ｘ－Ｙ平面；取付孔１０及び各ばね片１１～１４を除く部分）とばね片１１との境界部（折り曲げ端部）１１ａ、及び平面部３ａとばね片１３との境界部１３ａは、Ｙ１－Ｙ２方向に平行に延びており、金属板３の平面部３ａとばね片１２との境界部１２ａ、及び平面部３ａとばね片１４との境界部１４ａは、Ｘ１－Ｘ２方向に平行に延びている。よって、この実施形態では、４つの各境界部１１ａ～１４ａにより囲まれた形状は正方形や矩形状である。 As shown in FIG. 1, the metal plate 3 is provided with a mounting hole 10 penetrating in the height direction (the thickness direction of the metal plate 3). The attachment hole 10 is provided in the approximate center of the metal plate 3, for example. As shown in FIGS. 1A and 1C, four spring pieces 11 to 14 are provided in the mounting hole 10 by cutting and raising the metal plate 3 and bending it obliquely upward. In this embodiment, the bending directions of the spring pieces 11 to 14 and the bending directions of the tips of the contact portions 2b and 2c are the same. Each of the spring pieces 11 to 14 can be elastically deformed. As shown in FIGS. 1A and 1C, a spring piece 11 is provided on the X1 side of the mounting hole 10, a spring piece 12 on the Y1 side, a spring piece 13 on the X2 side, and a spring piece 14 on the Y2 side. Yes. As shown in FIG. 1 (a), the flat portion 3a of the metal plate 3 (XY plane; a portion excluding the mounting hole 10 and each of the spring pieces 11 to 14) and the spring piece 11 (bending end). 11a and the boundary portion 13a between the flat surface portion 3a and the spring piece 13 extend in parallel to the Y1-Y2 direction, and the boundary portion 12a between the flat surface portion 3a of the metal plate 3 and the spring piece 12 and the flat surface portion 3a A boundary portion 14a with the spring piece 14 extends parallel to the X1-X2 direction. Therefore, in this embodiment, the shape surrounded by the four boundary portions 11a to 14a is a square or a rectangle.
　なお図１（ａ）に示すように、金属板３には貫通する位置決め孔２３，２３が設けられている。各位置決め孔２３，２３は後述する製造工程で、金属板３と摺動子２間の位置決めを行うときに使用されるものである。 As shown in FIG. 1 (a), the metal plate 3 is provided with positioning holes 23, 23 penetrating therethrough. Each positioning hole 23, 23 is used when positioning between the metal plate 3 and the slider 2 in the manufacturing process described later.
　図１（ａ）（ｃ）に示すように、摺動子２の基部２ａには、取付孔１０と高さ方向で対向する位置に、開口１５が形成されている。そして、開口１５の大きさは、各ばね片１１～１４を除いた取付孔１０、すなわち各境界部１１ａ～１４ａにより囲まれた形状よりも大きく形成される。よって、摺動子２に形成された開口１５の各端面１５ａ～１５ｄは、各境界部１１ａ～１４ａより外側に広がって形成されている。なお摺動子２の基部２ａには金属板３に形成された位置決め孔２３，２３と対向する位置に貫通する位置決め孔１９，１９が形成されている。 1A and 1C, an opening 15 is formed in the base 2a of the slider 2 at a position facing the mounting hole 10 in the height direction. The size of the opening 15 is larger than the shape of the mounting hole 10 excluding the spring pieces 11 to 14, that is, the shape surrounded by the boundary portions 11a to 14a. Therefore, the end faces 15a to 15d of the opening 15 formed in the slider 2 are formed so as to spread outward from the boundary portions 11a to 14a. Positioning holes 19 and 19 are formed in the base 2a of the slider 2 so as to pass through the positions facing the positioning holes 23 and 23 formed in the metal plate 3.
　摺動子２の基部２ａに形成された開口１５は、各ばね片１１～１４を除いた取付孔１０よりもやや大きい相似形状であることが好適であるが、各ばね片１１～１４を除いた取付孔１０と異なる形状とすることもできる。例えば図１（ａ）において、摺動子２の基部２ａに形成された開口１５を円形状とすることも可能である。ただし、摺動子２の基部２ａに形成された開口１５を、各ばね片１１～１４を除いた取付孔１０よりもやや大きい相似形状とすることで、摺動子２の基部２ａと金属板３間の貼付領域（接着領域）を効果的に広げることができ好ましい。 The opening 15 formed in the base 2a of the slider 2 is preferably a similar shape slightly larger than the mounting hole 10 excluding the spring pieces 11 to 14, but the spring pieces 11 to 14 are excluded. The mounting hole 10 may have a different shape. For example, in FIG. 1A, the opening 15 formed in the base 2a of the slider 2 can be circular. However, by making the opening 15 formed in the base 2a of the slider 2 slightly similar to the mounting hole 10 excluding the spring pieces 11 to 14, the base 2a of the slider 2 and the metal plate The pasting region (adhesion region) between the three can be effectively expanded, which is preferable.
　図１（ｂ）（ｃ）に示すように、金属板３の摺動子２との対向面３ｂ、及び、摺動子２の金属板３との対向面２ｄは夫々、平面状である。金属板３の対向面３ｂと摺動子２の対向面２ｄとが重ねられ、金属板３は摺動子２の基部２ａに貼り付けられている。 As shown in FIGS. 1B and 1C, the facing surface 3b of the metal plate 3 facing the slider 2 and the facing surface 2d of the slider 2 facing the metal plate 3 are each planar. The facing surface 3 b of the metal plate 3 and the facing surface 2 d of the slider 2 are overlapped, and the metal plate 3 is attached to the base 2 a of the slider 2.
　本実施形態では、金属板３を、摺動子２を構成する樹脂５（図３参照）により貼り付けることが可能である。 In this embodiment, the metal plate 3 can be pasted with the resin 5 (see FIG. 3) constituting the slider 2.
　図１（ｄ）に示すように、ホルダ（摺動子保持体）１７の表面に設けられた突起１８は摺動接点１の裏面側（摺動子２側）から、摺動子２の開口１５と連続して貫通する金属板３の取付孔１０に挿入される。ホルダ１７を例えば樹脂成形体で形成できる。 As shown in FIG. 1 (d), the protrusion 18 provided on the surface of the holder (slider holder) 17 opens from the back side (slider 2 side) of the sliding contact 1 to the opening of the slider 2. 15 is inserted into the mounting hole 10 of the metal plate 3 penetrating continuously. The holder 17 can be formed of, for example, a resin molded body.
　本実施形態では、取付孔１０内に複数のばね片１１～１４を設けた構成であるため、各ばね片１１～１４を弾性変形させながら突起１８を取付孔１０内に挿入できる。突起１８のＸ－Ｙ平面での大きさは、各ばね片１１～１４を除いた取付孔１０の大きさ（図１（ａ）の各境界部１１ａ～１４ａにより囲まれた大きさ）より小さいが、図１（ａ）（ｃ）の突起未挿入時における取付孔１０の開口面積α（図１（ａ）に斜線で示す）よりやや大きく調整される。これにより、突起１８を取付孔１０に挿入すると各ばね片１１～１４を弾性変形させることができ、各ばね片１１～１４の弾性力が突起１８に作用する。よって、摺動接点１をしっかりとホルダ１７に取り付けることができる。 In the present embodiment, since the plurality of spring pieces 11 to 14 are provided in the mounting hole 10, the protrusion 18 can be inserted into the mounting hole 10 while elastically deforming each of the spring pieces 11 to 14. The size of the projection 18 on the XY plane is smaller than the size of the mounting hole 10 excluding the spring pieces 11 to 14 (the size surrounded by the boundary portions 11a to 14a in FIG. 1A). However, it is adjusted to be slightly larger than the opening area α (indicated by hatching in FIG. 1A) of the mounting hole 10 when the protrusion is not inserted in FIGS. Thus, when the protrusion 18 is inserted into the mounting hole 10, the spring pieces 11 to 14 can be elastically deformed, and the elastic force of the spring pieces 11 to 14 acts on the protrusion 18. Therefore, the sliding contact 1 can be securely attached to the holder 17.
　図１（ｄ）の摺動接点１及びホルダ１７をひっくり返した状態が図２である。本実施形態における摺動接点１を例えば可変抵抗器に用いることができる。 FIG. 2 shows a state in which the sliding contact 1 and the holder 17 in FIG. The sliding contact 1 in this embodiment can be used for a variable resistor, for example.
　図２に示す第１の導電パターン２０は抵抗体で、第２の導電パターン２１は良導電体から成る。第１の導電パターン２０は、例えば、カーボンブラックあるいは粉砕したカーボンファイバと、バインダー樹脂としてフェノール樹脂やエポキシ樹脂等の熱硬化性樹脂を有する抵抗体塗膜により形成される。第２の導電パターン２１は、例えば銀粉とバインダー樹脂としての熱硬化性樹脂を有する導電塗膜により形成される。なお、導電塗膜上には保護用のカーボン塗膜が設けられている。 The first conductive pattern 20 shown in FIG. 2 is a resistor, and the second conductive pattern 21 is a good conductor. The first conductive pattern 20 is formed of, for example, a resistor coating film having carbon black or pulverized carbon fiber and a thermosetting resin such as a phenol resin or an epoxy resin as a binder resin. The second conductive pattern 21 is formed by a conductive coating film having, for example, silver powder and a thermosetting resin as a binder resin. A protective carbon coating film is provided on the conductive coating film.
　図２に示す本実施形態の摺動接点１では、第１の接点部２ｂの先端面２ｂ１及び第２の接点部２ｃの先端面２ｃ１が夫々、導電パターン２０，２１上を相対的に摺動する。このとき、第１の接点部２ｂの先端面２ｂ１の摺動位置に応じて、第１の導電パターン２０に印加されている入力電圧が分圧され、第２の導電パターン２１に接続されている出力端子２２から出力される電圧を測定することで、摺動接点１の位置を検出することが出来る。摺動接点１が移動側で、導電パターン２０，２１が形成された基板（図示せず）が固定される形態でもよいし、あるいは、導電パターン２０，２１が形成された基板が移動側で、摺動接点１が固定される形態でもよい。 In the sliding contact 1 of the present embodiment shown in FIG. 2, the tip surface 2b1 of the first contact portion 2b and the tip surface 2c1 of the second contact portion 2c are relatively slid on the conductive patterns 20 and 21, respectively. To do. At this time, the input voltage applied to the first conductive pattern 20 is divided and connected to the second conductive pattern 21 according to the sliding position of the tip surface 2 b 1 of the first contact portion 2 b. By measuring the voltage output from the output terminal 22, the position of the sliding contact 1 can be detected. The sliding contact 1 may be on the moving side, and the substrate (not shown) on which the conductive patterns 20 and 21 are formed may be fixed. Alternatively, the substrate on which the conductive patterns 20 and 21 are formed is on the moving side. The form to which the sliding contact 1 is fixed may be sufficient.
　図２に示す形態では、第１の導電パターン２０，及び第２の導電パターン２１を一定の幅寸法の真っ直ぐな帯状で形成しているが、第１の導電パターン２０，第２の導電パターン２１の形態を限定するものではない。例えば、第１の導電パターン２０及び第２の導電パターン２１は、リング状で形成され（このとき、一方を内側に他方を外側に形成する）、これにより回転センサを構成できる。 In the form shown in FIG. 2, the first conductive pattern 20 and the second conductive pattern 21 are formed in a straight strip shape having a constant width, but the first conductive pattern 20 and the second conductive pattern 21 are formed. It is not intended to limit the form. For example, the first conductive pattern 20 and the second conductive pattern 21 are formed in a ring shape (at this time, one is formed on the inner side and the other is formed on the outer side), thereby forming a rotation sensor.
　本実施形態における摺動接点１は、樹脂５に覆われた炭素繊維６の束からなり、板状の基部２ａ及び基部２ａから延出された接点部２ｂ，２ｃを有する摺動子２と、ホルダ（摺動子保持体）１７への取付部（取付孔１０）を備え、摺動子２の基部２ａに貼り付けられた金属板３と、を有するものである。 The sliding contact 1 in the present embodiment is made of a bundle of carbon fibers 6 covered with a resin 5, and has a plate-like base portion 2a and a slider 2 having contact portions 2b and 2c extending from the base portion 2a, A metal plate 3 provided with an attachment portion (attachment hole 10) to a holder (slider holder) 17 and attached to a base portion 2a of the slider 2 is provided.
　このように本実施形態では、摺動子２の基部２ａへ金属板３を貼り付ける構造で済むので、摺動子２の基部２ａに樹脂成形体をモールドした構成と異なってバリの発生がなく、また樹脂モールドのように高価な成形金型を必要としない。更に、摺動子２の基部２ａと金属板３間に、他部材を介した接続構造を必要とせずに、しっかりと摺動子２の基部２ａと金属板３間を接合することができる。以上により、従来に比べて、信頼性及び生産性に優れた摺動接点１にできる。また製造コストを低減できる。 As described above, in the present embodiment, since the metal plate 3 may be attached to the base 2a of the slider 2, there is no occurrence of burrs unlike the configuration in which the resin molded body is molded on the base 2a of the slider 2. Moreover, an expensive molding die is not required unlike a resin mold. Furthermore, between the base 2a of the slider 2 and the metal plate 3, the base 2a of the slider 2 and the metal plate 3 can be firmly joined without requiring a connection structure via another member. As described above, it is possible to make the sliding contact 1 excellent in reliability and productivity as compared with the prior art. Further, the manufacturing cost can be reduced.
　また本実施形態のように導電性を有する金属板３を貼り付けたことで、基部２ａから接点部２ｂ，２ｃへの延出方向（Ｘ１－Ｘ２）と交差する方向（Ｙ１－Ｙ２）への電気抵抗を効果的に小さくできる。図２に示すように、炭素繊維６の延出方向は、接点部２ｃの延出方向に沿っている（接点部２ｂについても同様）。そして各接点部２ｂ，２ｃを接続する基部２ａ（図１（ａ）参照）においても、炭素繊維６の延出方向は接点部２ｂ，２ｃの延出方向である。 Further, by attaching the conductive metal plate 3 as in the present embodiment, the direction (Y1-Y2) intersecting the extending direction (X1-X2) from the base portion 2a to the contact portions 2b, 2c is reduced. Electric resistance can be effectively reduced. As shown in FIG. 2, the extending direction of the carbon fiber 6 is along the extending direction of the contact portion 2c (the same applies to the contact portion 2b). In the base 2a (see FIG. 1A) that connects the contact portions 2b and 2c, the extending direction of the carbon fiber 6 is the extending direction of the contact portions 2b and 2c.
　このため、電流が接点部２ｃから基部２ａ及び接点部２ｂに向けて流れるとき、各接点部２ｂ，２ｃでの電流の流れ方向は炭素繊維６の延出方向（Ｘ１－Ｘ２）に一致しているが、基部２ａでの電流の流れ方向は、炭素繊維６の延出方向に対して交差する。よって、本実施形態と異なって金属板３を設けないと、基部２ａでの電気抵抗が高くなり、第１の接点部２ｂの先端面２ｂ１と第２の接点部２ｃの先端面２ｃ１との間の導通抵抗が高く、検出精度の低下を招きやすい。これに対して本実施形態では、基部２ａに導電性の金属板３を貼り合わせているためＹ１－Ｙ２への電気抵抗を小さくでき、先端面２ｂ１，２ｃ１が夫々、摺接する位置における導電パターン２０，２１との間での導通抵抗を低減でき、検出精度を向上させることが可能である。 For this reason, when the current flows from the contact portion 2c toward the base portion 2a and the contact portion 2b, the current flow direction in each contact portion 2b, 2c coincides with the extending direction (X1-X2) of the carbon fiber 6. However, the flow direction of the current at the base portion 2 a intersects the extending direction of the carbon fiber 6. Therefore, unlike the present embodiment, if the metal plate 3 is not provided, the electrical resistance at the base portion 2a increases, and the gap between the tip surface 2b1 of the first contact portion 2b and the tip surface 2c1 of the second contact portion 2c. The conduction resistance is high, and the detection accuracy is likely to be lowered. On the other hand, in the present embodiment, since the conductive metal plate 3 is bonded to the base portion 2a, the electrical resistance to Y1-Y2 can be reduced, and the conductive pattern 20 at the position where the tip surfaces 2b1, 2c1 are in sliding contact with each other. , 21 can be reduced, and the detection accuracy can be improved.
　また本実施形態では、金属板３にホルダ（摺動子保持体）１７への取付部（取付孔１０）を備えた構成であるから（図１参照）、直接且つ安定して、摺動接点１をホルダ１７へ取り付けることができる。さらに、摺動子２に金属板３を貼り付けたことで、摺動子２単体に比べて強度不足を補うことができ、搬送時等に、摺動子２に対する破損が生じにくい構成にできる。 In the present embodiment, the metal plate 3 is provided with a mounting portion (mounting hole 10) to the holder (slider holding body) 17 (see FIG. 1). 1 can be attached to the holder 17. Further, by attaching the metal plate 3 to the slider 2, it is possible to make up for the lack of strength compared to the single slider 2 and to prevent the slider 2 from being damaged during transportation. .
　本実施形態では、摺動子２の基部２ａと金属板３とは、炭素繊維６の束を覆う樹脂５（図３参照）により貼り付けられていることが好適である。これにより、摺動子２の基部２ａと金属板３間を貼り付ける樹脂５と、炭素繊維６の束を覆う樹脂５とが同一であるため、摺動子２と金属板３間の貼付（接着）強度を高めることができる。 In the present embodiment, it is preferable that the base 2a of the slider 2 and the metal plate 3 are pasted with a resin 5 (see FIG. 3) covering a bundle of carbon fibers 6. Thereby, since the resin 5 for bonding between the base portion 2a of the slider 2 and the metal plate 3 and the resin 5 for covering the bundle of carbon fibers 6 are the same, the bonding between the slider 2 and the metal plate 3 ( Adhesion) strength can be increased.
　また本実施形態では、図１に示すように金属板３に設けられたホルダ（摺動子保持体）１７に対する取付部は、貫通孔からなる取付孔１０であり、摺動子２の基部２ａには、取付孔１０と対向する開口１５が形成されており、開口１５を囲む基部２ａが金属板３に貼り付けられている。これにより、ホルダ（摺動子保持体）１７に設けた突起１８を、摺動子２の開口１５から連続して貫通する金属板３の取付孔１０へ適切に挿入でき、簡単且つ確実に突起１８を取付孔１０にて固定することができる。なお、摺動接点１をホルダ１７に、いっそう確実に取り付けるために、突起１８の長さを長く形成し、金属板３の取付孔１０から突出した突起１８を変形させて（つぶして）かしめるようにしてもよい。また、金属板３の取付孔１０及び、摺動子２の基部２ａの開口１５を除く各対向面２ｄ，３ｂ全体を貼付領域として用いることができるため、広い貼付面積を確保しやすく、金属板３と摺動子２との貼付（接着）を確実なものにできる。 In the present embodiment, as shown in FIG. 1, the attachment portion for the holder (slider holder) 17 provided on the metal plate 3 is the attachment hole 10 formed of a through hole, and the base portion 2 a of the slider 2. An opening 15 facing the mounting hole 10 is formed, and a base 2 a surrounding the opening 15 is attached to the metal plate 3. Thereby, the protrusion 18 provided on the holder (slider holding body) 17 can be appropriately inserted into the mounting hole 10 of the metal plate 3 continuously penetrating from the opening 15 of the slider 2, and the protrusion can be easily and reliably performed. 18 can be fixed by the mounting hole 10. In addition, in order to attach the sliding contact 1 to the holder 17 more reliably, the length of the protrusion 18 is formed long, and the protrusion 18 protruding from the attachment hole 10 of the metal plate 3 is deformed (crushed) and caulked. You may do it. In addition, since the entire opposing surfaces 2d and 3b excluding the attachment hole 10 of the metal plate 3 and the opening 15 of the base portion 2a of the slider 2 can be used as the pasting region, it is easy to ensure a wide pasting area, and the metal plate The sticking (adhesion) between 3 and the slider 2 can be ensured.
　また本実施形態では、金属板３は弾性を有する金属板からなり、図１（ａ）（ｃ）に示すように、取付孔１０内には、複数のばね片１１～１４が設けられていることが好ましい。そして、摺動子２の基部２ａに形成された開口１５は、各ばね片１１～１４を除いた取付孔１０よりも大きく（図１（ａ）の各境界部１１ａ～１４ａにより囲まれた大きさよりも大きく）形成されていることが好ましい。これにより、各ばね片１１～１４を弾性変形させながら、ホルダ（摺動子保持体）１７に設けた突起１８を取付孔１０に簡単且つ適切に挿入することができ、そして摺動接点１をホルダ１７にしっかりと取り付けることができ、組立性を向上させることができる。また、摺動子２の基部２ａに形成した開口１５を、各ばね片１１～１４を除いた取付孔１０よりも大きく形成することで、ホルダ１７に設けた突起１８を取付孔１０に挿入するときに、前記突起１８が摺動子２に形成された開口１５の周辺部にぶつからず、突起１８をスムースに挿入でき、またホルダ１７に設けた突起１８の挿入により、各ばね片１１～１４が弾性変形しても、摺動子２と金属板３との間に剥がれ方向への力が作用にしにくく、摺動子２と金属板３間の貼付（接着）を安定した状態に維持することが出来る。 In the present embodiment, the metal plate 3 is made of an elastic metal plate, and a plurality of spring pieces 11 to 14 are provided in the mounting hole 10 as shown in FIGS. It is preferable. The opening 15 formed in the base portion 2a of the slider 2 is larger than the mounting hole 10 excluding the spring pieces 11 to 14 (a size surrounded by the boundary portions 11a to 14a in FIG. 1A). It is preferable that it is formed. Accordingly, the protrusion 18 provided on the holder (slider holder) 17 can be easily and appropriately inserted into the mounting hole 10 while elastically deforming each of the spring pieces 11 to 14, and the sliding contact 1 is It can be securely attached to the holder 17 and the assemblability can be improved. Further, the projection 15 provided on the holder 17 is inserted into the mounting hole 10 by forming the opening 15 formed in the base portion 2a of the slider 2 larger than the mounting hole 10 excluding the spring pieces 11-14. Sometimes, the protrusion 18 does not collide with the peripheral portion of the opening 15 formed in the slider 2, and the protrusion 18 can be inserted smoothly. Also, by inserting the protrusion 18 provided on the holder 17, the spring pieces 11 to 14 are inserted. Even if elastically deformed, the force in the peeling direction is hardly applied between the slider 2 and the metal plate 3, and the sticking (adhesion) between the slider 2 and the metal plate 3 is maintained in a stable state. I can do it.
　図１（ａ）に示す実施形態では、取付孔１０の周囲が４つのばね片１１～１４により囲まれた形状であるが、以下に説明する図４、図５の形態とすることもできる。 In the embodiment shown in FIG. 1 (a), the periphery of the mounting hole 10 is surrounded by four spring pieces 11 to 14. However, the embodiment shown in FIGS.
　図４（ａ）は、図１（ａ）とは異なる他の実施形態における摺動接点の平面図、図４（ｂ）は、図４（ａ）を、Ｃ－Ｃ線に沿って切断し矢印方向から見た摺動接点をホルダに取り付けた状態の縦断面図、図４（ｃ）は、図４（ａ）に示す摺動接点の裏側からホルダを取り付けた状態の平面図である。なお図４において図１と同じ部分については同じ符号を付す。 4A is a plan view of a sliding contact in another embodiment different from FIG. 1A, and FIG. 4B is a cross-sectional view taken along line CC in FIG. 4A. FIG. 4 (c) is a plan view of a state in which the holder is attached from the back side of the sliding contact shown in FIG. 4 (a), with the sliding contact seen from the arrow direction attached to the holder. 4 that are the same as those in FIG. 1 are denoted by the same reference numerals.
　図４（ａ）の実施形態においても、金属板３が摺動子２の基部２ａに貼り付けられている。図４（ａ）に示す実施形態では、図１（ａ）と同様に取付孔３３の周囲の三辺に３つのばね片１１，１２，１４が設けられている。一方、図４（ａ）に示す実施形態では、図１（ａ）と異なって、ばね片１３は設けられておらず、その位置での取付孔３３の端面３３ａ，３３ｂは２辺で構成される。図４（ａ）に示すように、各端面３３ａ，３３ｂが、接点部２ｂ、２ｃの延出方向（Ｘ１－Ｘ２）及び延出方向に直交する方向（Ｙ１－Ｙ２）に対して夫々、斜めに形成されて、取付孔３３の内方向に略三角形状で突き出す位置決め部２５を構成している。位置決め部２５は、ホルダ１７との位置決めのために設けられたものである。なお、位置決め部２５は、接点部２ｂ，２ｃの延出方向における取付孔３３の図示Ｘ２側に設けているが、これとは逆に、取付孔３３のＸ１側に位置決め部を設けるようにしてもよい。 4A, the metal plate 3 is attached to the base 2a of the slider 2 as well. In the embodiment shown in FIG. 4A, three spring pieces 11, 12, and 14 are provided on three sides around the mounting hole 33, as in FIG. 1A. On the other hand, in the embodiment shown in FIG. 4 (a), unlike FIG. 1 (a), the spring piece 13 is not provided, and the end faces 33a, 33b of the mounting hole 33 at that position are constituted by two sides. The As shown in FIG. 4A, the end faces 33a and 33b are inclined with respect to the extending direction (X1-X2) of the contact portions 2b and 2c and the direction (Y1-Y2) perpendicular to the extending direction, respectively. The positioning portion 25 is formed so as to protrude in an inward direction of the mounting hole 33 in a substantially triangular shape. The positioning portion 25 is provided for positioning with the holder 17. The positioning portion 25 is provided on the X2 side of the mounting hole 33 in the extending direction of the contact portions 2b and 2c. On the contrary, the positioning portion 25 is provided on the X1 side of the mounting hole 33. Also good.
　図４（ｂ）（ｃ）に示すように、ホルダ１７の表面に設けられた突起３４を摺動子２の基部２ａの開口３６に連続して貫通する金属板３の取付孔３３に挿入する。このとき、図４（ｃ）に示すように突起３４の平面形状は、取付孔３３の形状の相似状、つまり四角形状から位置決め部２５の部分を切り欠いた形状である。突起３４を取付孔３３内に挿入すると、取付孔３３の周囲に設けられた各ばね片１１，１２，１４が弾性変形して、各ばね片１１，１２，１４の弾性力が突起３４に作用する。このときばね片１１から突起３４を位置決め部２５の方向へ押す弾性力Ｆ１（図４（ｂ）参照）が作用するため、ホルダ１７の突起３４を位置決め部２５を構成する各端面３３ａ，３３ｂに押し付けることができ、ホルダ１７と摺動接点１間を正確に位置決めすることができる。 As shown in FIGS. 4B and 4C, the protrusion 34 provided on the surface of the holder 17 is inserted into the mounting hole 33 of the metal plate 3 continuously penetrating the opening 36 of the base 2a of the slider 2. . At this time, as shown in FIG. 4C, the planar shape of the protrusion 34 is similar to the shape of the mounting hole 33, that is, a shape in which the portion of the positioning portion 25 is cut out from a rectangular shape. When the protrusion 34 is inserted into the mounting hole 33, the spring pieces 11, 12, 14 provided around the mounting hole 33 are elastically deformed, and the elastic force of the spring pieces 11, 12, 14 acts on the protrusion 34. To do. At this time, an elastic force F1 (see FIG. 4B) that pushes the projection 34 from the spring piece 11 toward the positioning portion 25 acts, so that the projection 34 of the holder 17 is applied to each end surface 33a, 33b constituting the positioning portion 25. Therefore, the holder 17 and the sliding contact 1 can be accurately positioned.
　よって例えば、本実施形態の摺動接点１を図２に示す可変抵抗器に適用することで、可変抵抗器の検出精度を向上させることができる。また位置決め部２５を取付孔３３以外の位置に設けることも可能であるが、本実施形態のように、位置決め部２５を取付孔３３にばね片１１，１２，１４とともに設けることで、ホルダ１７に設けた突起３４を取付孔３３に挿入する簡単な作業により、摺動接点１のホルダ１７への保持と同時に、高精度な位置決めを実行することが可能である。 Therefore, for example, by applying the sliding contact 1 of this embodiment to the variable resistor shown in FIG. 2, the detection accuracy of the variable resistor can be improved. Although the positioning portion 25 can be provided at a position other than the mounting hole 33, the positioning portion 25 is provided in the mounting hole 33 together with the spring pieces 11, 12, 14 as in the present embodiment. With a simple operation of inserting the provided protrusion 34 into the mounting hole 33, it is possible to perform positioning with high accuracy simultaneously with holding the sliding contact 1 on the holder 17.
　図４（ａ）に示すように、位置決め部２５を構成する各端面３３ａ，３３ｂを、接点部２ｂ，２ｃの延出方向（Ｘ１－Ｘ２）及び延出方向に直交する方向（Ｙ１－Ｙ２）に対して斜めに形成しているが、これにより、接点部２ｂ，２ｃの延出方向（Ｘ１－Ｘ２）及び直交方向（Ｙ１－Ｙ２）の両方向に対して、ホルダ１７と摺動接点１間を高精度に位置決めすることができる。 As shown in FIG. 4A, the end surfaces 33a and 33b constituting the positioning portion 25 are made to extend in the extending direction (X1-X2) of the contact portions 2b and 2c and in the direction perpendicular to the extending direction (Y1-Y2). In this way, the contact between the holder 17 and the sliding contact 1 with respect to both the extending direction (X1-X2) and the orthogonal direction (Y1-Y2) of the contact portions 2b, 2c. Can be positioned with high accuracy.
　図５（ａ）は、図１（ａ）、図４（ａ）とは異なる他の実施形態における摺動接点の平面図、図５（ｂ）は、図５（ａ）を、Ｄ－Ｄ線に沿って切断し矢印方向から見た摺動接点をホルダに取り付けた状態の縦断面図、図５（ｃ）は、図５（ａ）に示す摺動接点の裏側からホルダを取り付けた状態の平面図である。なお図５において図１，図４と同じ部分については同じ符号を付す。また図５（ａ）に示すＤ－Ｄ線は、取付孔２６の中心よりもややＹ２側として、図５（ｂ）の断面にばね片２８が現れるようにしている。 5 (a) is a plan view of a sliding contact in another embodiment different from FIGS. 1 (a) and 4 (a), and FIG. 5 (b) is a cross-sectional view of FIG. FIG. 5C is a longitudinal sectional view of the state where the sliding contact is cut along the line and viewed from the direction of the arrow and is attached to the holder. FIG. 5C is a state where the holder is attached from the back side of the sliding contact shown in FIG. FIG. 5 that are the same as those in FIGS. 1 and 4 are denoted by the same reference numerals. Further, the DD line shown in FIG. 5A is slightly on the Y2 side from the center of the mounting hole 26 so that the spring piece 28 appears in the cross section of FIG. 5B.
　図５（ａ）に示す実施形態では、図１（ａ）や図４（ａ）と異なって、取付孔２６を略ひし形状に形成しており、取付孔２６の接点部２ｂ，２ｃの延出方向（Ｘ１－Ｘ２）における一方側（Ｘ１側）に位置して隣り合う二辺にばね片２７，２８を設け、他方側（Ｘ２側）に位置して隣り合う端面２６ａ，２６ｂにて位置決め部２９を構成している。なお一方側（Ｘ１側）に隣り合う端面（位置決め部）を設け、他方側（Ｘ２側）にばね片を設けた構成としてもよい。 In the embodiment shown in FIG. 5A, unlike FIG. 1A and FIG. 4A, the mounting hole 26 is formed in a substantially diamond shape, and the contact portions 2b and 2c of the mounting hole 26 are extended. Spring pieces 27, 28 are provided on two adjacent sides located on one side (X1 side) in the exit direction (X1-X2), and positioned on the adjacent end surfaces 26a, 26b located on the other side (X2 side). Part 29 is configured. In addition, it is good also as a structure which provided the end surface (positioning part) adjacent to one side (X1 side), and provided the spring piece in the other side (X2 side).
　図５（ｂ）（ｃ）に示すように、ホルダ１７に設けられた突起３５を摺動子２の基部２ａの開口１５に連続して貫通する金属板３の取付孔２６に挿入する。このとき、図５（ｃ）に示すように突起３５の平面形状は、取付孔２６の形状の相似状、つまり略ひし形状である。突起３５を取付孔２６に挿入すると、取付孔２６の周囲に設けられた各ばね片２７，２８が弾性変形して、各ばね片２７，２８の弾性力が突起３５に作用する。このときばね片２７，２８から突起３５を位置決め部２９の方向へ押す弾性力が作用するため、ホルダ１７の突起３５を位置決め部２９を構成する各端面２６ａ，２６ｂに押し付けることができ、ホルダ１７と摺動接点１間を正確に位置決めすることができる。 As shown in FIGS. 5B and 5C, the protrusion 35 provided on the holder 17 is inserted into the mounting hole 26 of the metal plate 3 that continuously passes through the opening 15 of the base 2a of the slider 2. At this time, as shown in FIG. 5C, the planar shape of the protrusion 35 is similar to the shape of the mounting hole 26, that is, a substantially rhombus shape. When the protrusion 35 is inserted into the attachment hole 26, the spring pieces 27 and 28 provided around the attachment hole 26 are elastically deformed, and the elastic force of the spring pieces 27 and 28 acts on the protrusion 35. At this time, since the elastic force pressing the projection 35 from the spring pieces 27 and 28 toward the positioning portion 29 acts, the projection 35 of the holder 17 can be pressed against the end surfaces 26 a and 26 b constituting the positioning portion 29. And the sliding contact 1 can be accurately positioned.
　また図５（ａ）でも、図４（ａ）と同様に、位置決め部２９を構成する各端面２６ａ，２６ｂを、接点部２ｂ，２ｃの延出方向（Ｘ１－Ｘ２）及び延出方向に直交する方向（Ｙ１－Ｙ２）に対して斜めに形成しているので、これにより、接点部２ｂ，２ｃの延出方向（Ｘ１－Ｘ２）及び直交方向（Ｙ１－Ｙ２）の両方向に対して、ホルダ１７と摺動接点１間を高精度に位置決めすることができる。 Also in FIG. 5A, as in FIG. 4A, the end surfaces 26a and 26b constituting the positioning portion 29 are orthogonal to the extending direction (X1-X2) and extending direction of the contact portions 2b and 2c. Is formed obliquely with respect to the direction (Y1-Y2) to be carried out, and thereby, the holder is secured to both the extending direction (X1-X2) and the orthogonal direction (Y1-Y2) of the contact portions 2b, 2c. 17 and the sliding contact 1 can be positioned with high accuracy.
　なお図１、図４、図５を用いて説明した上記各実施形態においては、ホルダ（摺動子保持体）１７への取付部として、ばね片（１１～１４，２７，２８）が設けられた取付孔（１０，２６，３３）により構成されたものとしたが、本実施形態は、これらに限定されるものではない。例えば、金属板３に、ばね片が設けられていない貫通孔からなる取付孔を形成し、この取付孔を取付部としてもよい。この場合には、樹脂成形体からなるホルダ１７に、前記取付孔に挿通される突起を設けておき、取付孔に挿通されて突出した突起の先端部を金属板３側にかしめつける（塑性変形させる）ことにより、ホルダ１７に摺動接点１を取り付けることができる。また、取付孔の形状や数も上記実施形態に限定されず、円形状や他の形状をなした取付孔でもよく、複数の取付孔を金属板３に設けてもよい。さらに、取付孔は貫通孔に限られず、例えば、金属板３に取付孔としての切欠きを形成し、この切欠き内にホルダに設けた突起を位置させて、この突起をかしめつけてもよい。また、ホルダに複数の突出部を設けておき、これらの突出部間に、取付部として機能する金属板の外形端面を圧入させることにより、摺動接点１をホルダに取り付けることも可能である。 In each of the embodiments described with reference to FIGS. 1, 4, and 5, spring pieces (11 to 14, 27, 28) are provided as attachment portions to the holder (slider holder) 17. The mounting holes (10, 26, 33) are configured, but the present embodiment is not limited to these. For example, the metal plate 3 may be formed with an attachment hole made of a through hole in which no spring piece is provided, and this attachment hole may be used as the attachment portion. In this case, a protrusion that is inserted through the mounting hole is provided on the holder 17 made of a resin molded body, and the tip of the protrusion that is inserted through the mounting hole and crimped to the metal plate 3 side (plastic deformation). The sliding contact 1 can be attached to the holder 17. Further, the shape and the number of the mounting holes are not limited to the above embodiment, but may be circular or other mounting holes, and a plurality of mounting holes may be provided in the metal plate 3. Furthermore, the mounting hole is not limited to the through hole. For example, a notch as a mounting hole may be formed in the metal plate 3, and a protrusion provided on the holder may be positioned in the notch, and the protrusion may be caulked. . It is also possible to attach the sliding contact 1 to the holder by providing a plurality of projecting portions on the holder and press-fitting the outer end face of the metal plate functioning as the attaching portion between these projecting portions.
　また上記では摺動子２を構成する炭素繊維６の束は、Ｘ１－Ｘ２方向のみに延出した単層構造であったが、例えば、図３（ｂ）に示すように、樹脂５で覆われた板状の炭素繊維６の束の層３０，３１，３２が３枚積層された構成にもできる。この構成では、摺動子２の積層方向の両表層３０，３２に設けられた炭素繊維６の束の延出方向は、前記接点部の延出方向（Ｘ１－Ｘ２）に沿っており、中央に位置する層３１の炭素繊維６の束の延出方向は、前記延出方向（Ｘ１－Ｘ２）と直交する方向（Ｙ１－Ｙ２）に向けられている。なお、隣り合う各層３０，３１，３２の間にも樹脂５が設けられており、この樹脂５により３つの層は一体化されたものとなっている。 In the above, the bundle of carbon fibers 6 constituting the slider 2 has a single-layer structure extending only in the X1-X2 direction. For example, as shown in FIG. A configuration in which three layers 30, 31, 32 of bundles of broken plate-like carbon fibers 6 are laminated is also possible. In this configuration, the extending direction of the bundle of carbon fibers 6 provided on both surface layers 30 and 32 in the stacking direction of the slider 2 is along the extending direction (X1-X2) of the contact portion, The extending direction of the bundle of carbon fibers 6 of the layer 31 located in the direction is oriented in the direction (Y1-Y2) perpendicular to the extending direction (X1-X2). The resin 5 is also provided between the adjacent layers 30, 31, 32, and the three layers are integrated by the resin 5.
　摺動子２を構成する樹脂５で覆われた炭素繊維６の束の層を３層より多くすることも可能であるが、奇数層にして、摺動子２の両表層に設けられた炭素繊維６の束の延出方向は、前記接点部の延出方向（Ｘ１－Ｘ２）に一致させることが好適である。このように複数層を積層して摺動子２を構成することで、摺動子２の強度を向上させることができるとともに、摺動子２の両表面に位置する炭素繊維６の束の延出方向が、前記接点部の延出方向（Ｘ１－Ｘ２）に沿うことで、図２に示す導電パターン２０，２１との摺動性を良好にできる。 Although it is possible to increase the number of bundles of carbon fibers 6 covered with the resin 5 constituting the slider 2 from three, the carbon provided on both surface layers of the slider 2 is an odd layer. The extending direction of the bundle of fibers 6 is preferably matched with the extending direction (X1-X2) of the contact portion. Thus, by laminating a plurality of layers to form the slider 2, the strength of the slider 2 can be improved, and the bundle of carbon fibers 6 positioned on both surfaces of the slider 2 can be extended. Since the extending direction is along the extending direction (X1-X2) of the contact portion, the slidability with the conductive patterns 20 and 21 shown in FIG. 2 can be improved.
　図６ないし図１５を用いて本実施形態における摺動接点１（図１の形状の摺動接点。ただし摺動子は図３（ｂ）に示す３層構造とした摺動接点）の製造方法を説明する。図６～図１１は斜視図、図１２は平面図、図１３は、縦断面図である。 A manufacturing method of the sliding contact 1 (sliding contact having the shape of FIG. 1, where the sliding element has a three-layer structure shown in FIG. 3B) in the present embodiment with reference to FIGS. Will be explained. 6 to 11 are perspective views, FIG. 12 is a plan view, and FIG. 13 is a longitudinal sectional view.
　図６の工程では、例えば１０００～１５０００本程度の炭素繊維が束となった炭素繊維束４０を支持板、例えば、アルミ箔４１上に設置する。 In the process of FIG. 6, for example, a carbon fiber bundle 40 in which about 1000 to 15000 carbon fibers are bundled is placed on a support plate, for example, an aluminum foil 41.
　次に図７の工程では、炭素繊維束４０の表面に熱硬化性樹脂の溶液４２を含浸させる。例えば、熱硬化性樹脂の溶液４２を噴霧したり、溶液中に炭素繊維束４０を浸漬する方法がある。図７は、熱硬化性樹脂の溶液４２を、噴霧している図であり、炭素繊維束４０に満遍なく滴下する（プリプレグの作製）。 Next, in the step of FIG. 7, the surface of the carbon fiber bundle 40 is impregnated with a solution 42 of a thermosetting resin. For example, there is a method of spraying a solution 42 of a thermosetting resin or immersing the carbon fiber bundle 40 in the solution. FIG. 7 is a view in which a solution 42 of a thermosetting resin is sprayed, and is dripped evenly onto the carbon fiber bundle 40 (preparation of a prepreg).
　本実施形態では、図７の工程では、熱硬化性樹脂として、トリフェニルグリシジルエーテルメタン（Ｔｒｉ－ＰＧＥＭ）、クレゾールノボラックエポキシ、テトラグリシジルジアミノフェニルメタン（Ｔｅｔ－ＧＤＤＭ）、テトラフェニルグリシジルエーテルエタン（Ｔｅｔ－ＰＧＥＥ）のうち少なくともいずれか１種と、ビスフェノールエポキシ樹脂、ダイマー酸型エポキシ樹脂、線状脂肪族エポキシの少なくとも１種の柔軟性エポキシと、硬化剤としてジアミノジフェニルスルフォン（ＤＤＳ）、酸無水物、ジシアンジアミド（ＤＩＣＹ）のうち少なくともいずれか１種とを用いることが好適である。特に、トリフェリルグリシジルエーテルメタン（Ｔｒｉ－ＰＧＥＭ）に、潜在型硬化剤としてジアミノジフェニルスルフォン（ＤＤＳ）を例えば、カビトールアセテート中に分散させた溶液４２を用いることが好ましい。 In this embodiment, in the step of FIG. 7, as the thermosetting resin, triphenyl glycidyl ether methane (Tri-PGEM), cresol novolac epoxy, tetraglycidyl diaminophenyl methane (Tet-GDDM), tetraphenyl glycidyl ether ethane (Tet). -PGEE), at least one flexible epoxy of bisphenol epoxy resin, dimer acid type epoxy resin, linear aliphatic epoxy, diaminodiphenylsulfone (DDS), acid anhydride as curing agent It is preferable to use at least one of dicyandiamide (DICY). In particular, it is preferable to use a solution 42 in which diaminodiphenylsulfone (DDS) is dispersed in, for example, carbitol acetate as a latent curing agent in triferyl glycidyl ether methane (Tri-PGEM).
　次に図８の工程では、黄銅板などの薄い金属の板４３の平滑性に優れた端面４３ａを炭素繊維束４０に軽く押し付けた状態で、炭素繊維束４０の延出方向（Ｘ１－Ｘ２）に対して直交する方向（Ｙ１－Ｙ２）に板４３を細かく振動させながら（図８の符号Ｅ参照）、板４３を炭素繊維束４０の延出方向（Ｘ１－Ｘ２）に移動させる（図８の符号Ｆ及び点線の符号４３を参照）。 Next, in the process of FIG. 8, the extending direction (X1-X2) of the carbon fiber bundle 40 in a state where the end face 43a excellent in smoothness of the thin metal plate 43 such as a brass plate is lightly pressed against the carbon fiber bundle 40. The plate 43 is moved in the extending direction (X1-X2) of the carbon fiber bundle 40 while finely vibrating the plate 43 in a direction (Y1-Y2) perpendicular to the direction (see symbol E in FIG. 8) (FIG. 8). (See reference numeral F and dotted line reference 43).
　図８の工程により炭素繊維束４０は徐々にＹ１－Ｙ２方向に広がるとともに厚さが薄くなり、炭素繊維間をほぐすことができる。これにより炭素繊維束４０を平板状にできる。 8, the carbon fiber bundle 40 gradually spreads in the Y1-Y2 direction and becomes thinner, so that the gap between the carbon fibers can be loosened. Thereby, the carbon fiber bundle 40 can be made flat.
　次に図９に示す工程では、樹脂（溶剤含む）を含浸した炭素繊維束４０をホットプレート４４上に設置し、乾燥させる。温度は１００℃前後、時間は数分から数十分程度である。 Next, in the step shown in FIG. 9, the carbon fiber bundle 40 impregnated with resin (including solvent) is placed on a hot plate 44 and dried. The temperature is around 100 ° C., and the time is from several minutes to several tens of minutes.
　図６ないし図９の工程を経た炭素繊維束４０を例えば３つ作製する（残りの炭素繊維束の符号を４５，４６とした）。なお炭素繊維束４５，４６については乾燥後、直ぐに炭素繊維束４５，４６からアルミ箔４１を引き剥がす。そのうち、一つの炭素繊維束４５を、炭素繊維束４５の延出方向に対して直交する方向から切断して図１０に示すように、複数個の炭素繊維束片４５ａ～４５ｃを作製する。このとき各炭素繊維束片４５ａ～４５ｃの長さＬ１（炭素繊維束の延出方向への長さ。炭素繊維束４５に対する切断長さ）は、残りの炭素繊維束４０，４６の幅Ｔ１（炭素繊維束の延出方向に対して直交方向への幅）と略同一となるように調整することが好ましい。 For example, three carbon fiber bundles 40 that have undergone the steps of FIGS. 6 to 9 are produced (the remaining carbon fiber bundles are denoted by 45 and 46). In addition, about the carbon fiber bundles 45 and 46, the aluminum foil 41 is peeled off from the carbon fiber bundles 45 and 46 immediately after drying. Among them, one carbon fiber bundle 45 is cut from a direction orthogonal to the extending direction of the carbon fiber bundle 45 to produce a plurality of carbon fiber bundle pieces 45a to 45c as shown in FIG. At this time, the length L1 of each of the carbon fiber bundle pieces 45a to 45c (the length in the extending direction of the carbon fiber bundle. The cut length with respect to the carbon fiber bundle 45) is the width T1 ( It is preferable to adjust so as to be substantially the same as the width in the direction orthogonal to the extending direction of the carbon fiber bundle.
　図１０に示すように、炭素繊維束４０の上に各炭素繊維束片４５ａ～４５ｃを並べるが、このとき、各炭素繊維束片４５ａ～４５ｃにおける炭素繊維の延出方向を、炭素繊維束４０の延出方向（Ｘ１－Ｘ２）と直交させる。 As shown in FIG. 10, the carbon fiber bundle pieces 45a to 45c are arranged on the carbon fiber bundle 40. At this time, the extending direction of the carbon fiber in each of the carbon fiber bundle pieces 45a to 45c is determined according to the carbon fiber bundle 40. Is orthogonal to the extending direction (X1-X2).
　図１０に示すように、更に各炭素繊維束片４５ａ～４５ｃの上に炭素繊維束の延出方向が各炭素繊維束片４５ａ～４５ｃと直交する炭素繊維束４６を重ね合わせる。 As shown in FIG. 10, a carbon fiber bundle 46 in which the extending direction of the carbon fiber bundle is orthogonal to each of the carbon fiber bundle pieces 45a to 45c is further superimposed on each of the carbon fiber bundle pieces 45a to 45c.
　このように各炭素繊維束の層を積層した炭素繊維束積層体（プリプレグ）４７を図１１に示すように、ホットプレート４４上で乾燥させる。この乾燥により各炭素繊維束４０，４５，４６に含浸させた樹脂により各層間を分離しないように接合（接着）することができる。温度は１００℃前後、時間は数分から数十分程度である。
　乾燥後、直ちに炭素繊維束積層体４７をアルミ箔４１から引き剥がす。 Thus, the carbon fiber bundle laminated body (prepreg) 47 which laminated | stacked the layer of each carbon fiber bundle is dried on the hotplate 44, as shown in FIG. By this drying, the carbon fiber bundles 40, 45, 46 can be joined (adhered) with the resin impregnated so as not to separate the respective layers. The temperature is around 100 ° C., and the time is from several minutes to several tens of minutes.
Immediately after drying, the carbon fiber bundle laminate 47 is peeled off from the aluminum foil 41.
　続いて図１２の工程では、例えばＹＡＧレーザＬを用いて、炭素繊維束積層体（プリプレグ）４７を所定形状に切り出す。ＹＡＧレーザＬは特に、ＦＡＹｂと呼ばれる、イッテリビウムによってレーザを増幅させる方式によるものであることが好ましい。 Subsequently, in the process of FIG. 12, the carbon fiber bundle laminate (prepreg) 47 is cut into a predetermined shape using, for example, a YAG laser L. In particular, the YAG laser L is preferably of a type called FAYb that amplifies the laser with ytterbium.
　図１２では、炭素繊維束積層体（プリプレグ）４７を３つの摺動子２の形状に外形加工している。各摺動子２の間には連結部５０を残しており、各摺動子２がばらばらにならないようにされているが、連結部５０の部分を残しておいて最後に切断してもよいし、図１２の工程時に連結部５０の部分も切断して、各摺動子２に分離してもよい。 In FIG. 12, the carbon fiber bundle laminate (prepreg) 47 is externally processed into the shape of three sliders 2. The connecting portions 50 are left between the sliders 2 so that the sliders 2 do not fall apart. However, the connecting portions 50 may be left and cut last. And the part of the connection part 50 may also be cut | disconnected and isolate | separated into each slider 2 at the process of FIG.
　図１２に示すように、各摺動子２の外形を基部２ａと基部２ａから延出する接点部２ｂ，２ｃの形状に切り出す。また基部２ａに開口１５や位置決め孔１９を形成する。 As shown in FIG. 12, the outer shape of each slider 2 is cut into the shape of contact portions 2b and 2c extending from the base portion 2a and the base portion 2a. An opening 15 and a positioning hole 19 are formed in the base portion 2a.
　続く図１３の工程では、図１２により得られた摺動子２（なお図１３では、図１２の連結部５０を切断して、各摺動子２に分離した状態にされている）を、プレス金型５１内にセットする。 In the subsequent process of FIG. 13, the slider 2 obtained in FIG. 12 (in FIG. 13, the connecting portion 50 in FIG. 12 is cut and separated into the respective sliders 2). Set in the press die 51.
　なお図１３に示す摺動子２は、図１２に示す切断線Ｇに沿って切断して現れる摺動子２の断面形状である。摺動子２上に重ねられる金属板３についても同様である。 Note that the slider 2 shown in FIG. 13 has a cross-sectional shape of the slider 2 that appears by cutting along the cutting line G shown in FIG. The same applies to the metal plate 3 stacked on the slider 2.
　図１３に示すようにプレス金型５１の下型５２には位置決め突起５２ａが設けられており、この位置決め突起５２ａを図１２の工程で摺動子２に形成された位置決め孔１９に通す。 As shown in FIG. 13, the lower mold 52 of the press die 51 is provided with a positioning projection 52a, and this positioning projection 52a is passed through the positioning hole 19 formed in the slider 2 in the process of FIG.
　このとき図１３に示すように、下型５２と摺動子２との間に離型シート５３を介在させる。なお離型シート５３に形成された穴に位置決め突起５２ａを通して、摺動子２の下面に離型シート５３を配置する。 At this time, as shown in FIG. 13, a release sheet 53 is interposed between the lower mold 52 and the slider 2. Note that the release sheet 53 is disposed on the lower surface of the slider 2 through the positioning projection 52a through the hole formed in the release sheet 53.
　また図１３に示すように摺動子２の基部２ａ上に例えば図１（ａ）（ｃ）に示す取付孔１０、斜め上方に折り曲げられた各ばね片１１～１４及び位置決め孔２３を備える金属板３を設置する。このとき、金属板３に形成された位置決め孔２３に位置決め突起５２ａを通して金属板３を摺動子２の基部２ａ上に設置する。 Further, as shown in FIG. 13, on the base 2a of the slider 2, for example, a metal provided with a mounting hole 10 shown in FIGS. 1 (a) and 1 (c), spring pieces 11-14 bent obliquely upward, and a positioning hole 23. Plate 3 is installed. At this time, the metal plate 3 is placed on the base 2 a of the slider 2 through the positioning projection 52 a in the positioning hole 23 formed in the metal plate 3.
　さらに図１３に示すように、摺動子２及び金属板３の上に離型シート５４を対向させる。この離型シート５４にも、離型シート５３と同様に位置決め突起５２ａを通す貫通した穴５４ａが形成されている。離型シート５３，５４には例えば、透明で耐熱性に優れたフッ素樹脂フィルム（例えば旭硝子株式会社のアフレックス（登録商標））を用いることができる。 Further, as shown in FIG. 13, the release sheet 54 is opposed to the slider 2 and the metal plate 3. Similarly to the release sheet 53, the release sheet 54 is also formed with a through hole 54a through which the positioning protrusion 52a passes. For example, a transparent fluororesin film having excellent heat resistance (for example, Aflex (registered trademark) manufactured by Asahi Glass Co., Ltd.) can be used for the release sheets 53 and 54.
　そして熱プレス装置としてのプレス金型５１の上型５５をセットし、摺動子２と金属板３からなる摺動接点１の上下に離型シート５３，５４を配置した状態にて、図１４の工程で熱プレスする。 Then, an upper die 55 of a press die 51 as a heat press device is set, and release sheets 53 and 54 are arranged above and below the sliding contact 1 composed of the slider 2 and the metal plate 3, and FIG. Hot press in the process.
　この図１４工程での熱プレスの加熱温度（熱処理温度）は、図９や図１１に示す乾燥工程での乾燥温度よりも高く、数百度程度（例えば１８０℃～２５０℃）である。また、加熱時間は数十分程度（例えば２０分～５０分）である。図１４工程の熱プレスにより、摺動子２の各接点部２ｂ，２ｃを立体成形し、このとき未硬化の熱硬化性樹脂が加熱硬化される。この熱硬化性樹脂の加熱硬化に伴い、各炭素繊維束４０，４５，４６は硬化した樹脂により完全に接合（本接着）されて一体化される。 The heating temperature (heat treatment temperature) of the hot press in the step of FIG. 14 is higher than the drying temperature in the drying step shown in FIGS. 9 and 11, and is about several hundred degrees (for example, 180 ° C. to 250 ° C.). The heating time is about several tens of minutes (for example, 20 to 50 minutes). The contact portions 2b and 2c of the slider 2 are three-dimensionally formed by hot pressing in the step of FIG. 14, and at this time, the uncured thermosetting resin is heat-cured. As the thermosetting resin is heat-cured, the carbon fiber bundles 40, 45, and 46 are completely joined (mainly bonded) and integrated by the cured resin.
　本実施形態では、金属板３を摺動子２の板状の基部２ａに重ねた状態で熱プレスする。これにより、熱硬化樹脂の加熱硬化と同時に、摺動子２を構成する炭素繊維束に含浸された樹脂により、金属板３を摺動子２の基部２ａに接着して適切に貼り付けることができる。 In this embodiment, the metal plate 3 is hot-pressed with the plate-like base 2a of the slider 2 being overlaid. Thereby, simultaneously with the heat curing of the thermosetting resin, the metal plate 3 can be appropriately adhered to the base portion 2a of the slider 2 by the resin impregnated in the carbon fiber bundle constituting the slider 2 it can.
　また図１４のように、摺動接点１とプレス金型５１との間に離型シート５３，５４を介在させているので、未硬化の熱硬化性樹脂がプレス金型５１に付着しない。よって図１５に示すように、摺動接点１をプレス金型５１から適切に取り出すことができる。
　そして、離型シート５３，５４を摺動接点１から剥離する。 Further, as shown in FIG. 14, the release sheets 53 and 54 are interposed between the sliding contact 1 and the press die 51, so that the uncured thermosetting resin does not adhere to the press die 51. Therefore, as shown in FIG. 15, the sliding contact 1 can be appropriately taken out from the press die 51.
Then, the release sheets 53 and 54 are peeled from the sliding contact 1.
　このように本実施形態の摺動接点の製造方法によれば、摺動子２の基部２ａと金属板３間に例えば別部材による接続構造や、あるいは摺動子２の基部２ａと金属板３間を接合するための新たな接着剤を用いなくても、炭素繊維束に含浸させた樹脂を利用して、熱プレスによる摺動子２の成形工程で、摺動子２の基部２ａに金属板３を簡単且つ確実に貼り付けることができる。 Thus, according to the manufacturing method of the sliding contact of this embodiment, the connection structure by another member between the base 2a of the slider 2 and the metal plate 3, or the base 2a of the slider 2 and the metal plate 3 is used. Even without using a new adhesive for joining the two, a resin impregnated in a carbon fiber bundle is used to form a metal on the base 2a of the slider 2 in the molding process of the slider 2 by hot pressing. The plate 3 can be attached easily and reliably.
　なお図１２のように、各摺動子２を連結部５０を介して接続した摺動子接続体を、金型内に、各摺動子２に対応する金属板３及び離型シート（例えば、離型シートは摺動子接続体の上下に一枚ずつ配置）をセットし、一度に、各摺動子２に対して立体成形と金属板３の貼り付けとを行うこともできる。 As shown in FIG. 12, the slider connection body in which the sliders 2 are connected via the connecting portions 50 is placed in the mold in the metal plate 3 and the release sheet (for example, corresponding to each slider 2). The release sheets are arranged one by one on the top and bottom of the slider connection body), and three-dimensional forming and the metal plate 3 can be applied to each slider 2 at a time.
　また図７の工程で炭素繊維束４０に含浸させる樹脂は、熱硬化性樹脂に限定されず、熱可塑性樹脂であってもよい。樹脂として、熱可塑性樹脂を用いる場合には、図７工程の熱硬化性樹脂の溶液４２に代えて、熱可塑性樹脂を加熱することにより液状とした溶融樹脂とすればよく、図９，図１１の乾燥工程を省くことが出来る。また図１４の熱プレスによる成形工程は、炭素繊維束に熱可塑性樹脂を含浸させてなる摺動子（プリプレグ）２における樹脂（熱可塑性樹脂）を加熱変形させる工程となることから、短時間で熱プレスによる成形加工を行うことができるが、摺動子２に対する金属板３の貼り付け（接着）を考慮して、加熱温度や加熱時間が調整される。熱可塑性樹脂としては、ポリアミド樹脂、ＰＰＳ樹脂、ＰＢＴ樹脂等を例示することが出来る。 Further, the resin impregnated in the carbon fiber bundle 40 in the step of FIG. 7 is not limited to the thermosetting resin, and may be a thermoplastic resin. When a thermoplastic resin is used as the resin, it may be a molten resin that is liquefied by heating the thermoplastic resin, instead of the thermosetting resin solution 42 in FIG. The drying process can be omitted. In addition, the molding process by the hot press in FIG. 14 is a process in which the resin (thermoplastic resin) in the slider (prepreg) 2 formed by impregnating the carbon fiber bundle with the thermoplastic resin is heated and deformed. Although forming by hot pressing can be performed, the heating temperature and the heating time are adjusted in consideration of the attachment (adhesion) of the metal plate 3 to the slider 2. Examples of the thermoplastic resin include polyamide resin, PPS resin, PBT resin, and the like.
　なお安定した摺動子２と金属板３間の貼り付け（接着）を実行するには熱硬化性樹脂を用いたほうが望ましい。 Note that it is desirable to use a thermosetting resin in order to perform affixing (adhesion) between the stable slider 2 and the metal plate 3.
１　摺動接点
２　摺動子
２ａ　基部
２ｂ、２ｃ　接点部
３　金属板
５　樹脂
６　炭素繊維
１０、２６、３３　取付孔
１１～１４、２７、２８　ばね片
１５、３６　開口
１７　ホルダ（摺動子保持体）
１８、３４、３５　突起
２０、２１　導電パターン
２５、２９　位置決め部
２６ａ、２６ｂ、３３ａ、３３ｂ　端面
４０、４５、４６　炭素繊維束
４７　炭素繊維束積層体
５０　連結部
５１　プレス金型
５３、５４　離型シート DESCRIPTION OF SYMBOLS 1 Sliding contact 2 Slider 2a Base part 2b, 2c Contact part 3 Metal plate 5 Resin 6 Carbon fiber 10, 26, 33 Mounting hole 11-14, 27, 28 Spring piece 15, 36 Opening 17 Holder (slider holding | maintenance) body)
18, 34, 35 Protrusion 20, 21 Conductive pattern 25, 29 Positioning portion 26a, 26b, 33a, 33b End face 40, 45, 46 Carbon fiber bundle 47 Carbon fiber bundle laminate 50 Connecting portion 51 Press die 53, 54 Mold release Sheet

Claims (16)

  1. 　樹脂に覆われた炭素繊維束からなり、板状の基部及び前記基部から延出された接点部を有する摺動子と、摺動子保持体への取付部を備え、前記摺動子の前記基部に貼り付けられた金属板と、を有することを特徴とする摺動接点。 The slider comprises a carbon fiber bundle covered with resin, and includes a slider having a plate-like base portion and a contact portion extending from the base portion, and an attachment portion to a slider holder, and the slider A sliding contact comprising: a metal plate affixed to a base.
  2. 　前記摺動子の基部と前記金属板とは、前記炭素繊維束を覆う前記樹脂により貼り付けられている請求項１記載の摺動接点。 The sliding contact according to claim 1, wherein the base of the slider and the metal plate are attached by the resin covering the carbon fiber bundle.
  3. 　前記取付部は、貫通孔からなる取付孔であり、前記摺動子の前記基部には、前記取付孔と対向する位置に開口が形成されており、前記開口を囲む前記基部が前記金属板に貼り付けられている請求項１記載の摺動接点。 The mounting portion is a mounting hole including a through hole, and an opening is formed in the base portion of the slider at a position facing the mounting hole, and the base portion surrounding the opening is formed in the metal plate. The sliding contact according to claim 1, which is affixed.
  4. 　前記取付部は、貫通孔からなる取付孔であり、前記摺動子の前記基部には、前記取付孔と対向する位置に開口が形成されており、前記開口を囲む前記基部が前記金属板に貼り付けられている請求項２記載の摺動接点。 The mounting portion is a mounting hole including a through hole, and an opening is formed in the base portion of the slider at a position facing the mounting hole, and the base portion surrounding the opening is formed in the metal plate. The sliding contact according to claim 2, which is affixed.
  5. 　前記金属板は弾性を有する金属板からなり、前記取付孔の周囲の少なくとも一部には、前記金属板が平面視にて取付孔内に延出してなるばね片が設けられており、前記摺動子に設けられた前記開口は、前記ばね片を除いた前記取付孔よりも大きく形成されている請求項３記載の摺動接点。 The metal plate is made of an elastic metal plate, and at least a part of the periphery of the mounting hole is provided with a spring piece formed by extending the metal plate into the mounting hole in a plan view. The sliding contact according to claim 3, wherein the opening provided in the moving element is formed larger than the mounting hole excluding the spring piece.
  6. 　前記金属板は弾性を有する金属板からなり、前記取付孔の周囲の少なくとも一部には、前記金属板が平面視にて取付孔内に延出してなるばね片が設けられており、前記摺動子に設けられた前記開口は、前記ばね片を除いた前記取付孔よりも大きく形成されている請求項４記載の摺動接点。 The metal plate is made of an elastic metal plate, and at least a part of the periphery of the mounting hole is provided with a spring piece formed by extending the metal plate into the mounting hole in a plan view. The sliding contact according to claim 4, wherein the opening provided in the moving element is formed larger than the mounting hole excluding the spring piece.
  7. 　前記ばね片は、前記取付孔の周囲の一部に設けられており、前記ばね片が形成されていない前記取付孔の端面に、前記摺動子保持体との位置決め部が設けられている請求項５記載の摺動接点。 The said spring piece is provided in a part of circumference | surroundings of the said attachment hole, and the positioning part with the said slider holding body is provided in the end surface of the said attachment hole in which the said spring piece is not formed. The sliding contact according to Item 5.
  8. 　前記ばね片は、前記取付孔の周囲の一部に設けられており、前記ばね片が形成されていない前記取付孔の端面に、前記摺動子保持体との位置決め部が設けられている請求項６記載の摺動接点。 The said spring piece is provided in a part of circumference | surroundings of the said attachment hole, and the positioning part with the said slider holding body is provided in the end surface of the said attachment hole in which the said spring piece is not formed. Item 7. The sliding contact according to Item 6.
  9. 　前記位置決め部を構成する前記端面は、前記接点部の延出方向及び前記延出方向に直交する方向に対して斜めに形成されている請求項７記載の摺動接点。 The sliding contact according to claim 7, wherein the end face constituting the positioning portion is formed obliquely with respect to an extending direction of the contact portion and a direction orthogonal to the extending direction.
  10. 　前記位置決め部を構成する前記端面は、前記接点部の延出方向及び前記延出方向に直交する方向に対して斜めに形成されている請求項８記載の摺動接点。 The sliding contact according to claim 8, wherein the end surface constituting the positioning portion is formed obliquely with respect to the extending direction of the contact portion and a direction orthogonal to the extending direction.
  11. 　前記金属板には、前記摺動子保持体との位置決め部が設けられている請求項１ないし６のいずれか１項に記載の摺動接点。 The sliding contact according to any one of claims 1 to 6, wherein the metal plate is provided with a positioning portion with respect to the slider holder.
  12. 　前記摺動子は、前記樹脂で覆われた前記炭素繊維束の板状の層が少なくとも３層、積層されており、隣り合う層の前記炭素繊維束の延出方向が交互となるように構成されており、積層方向における前記摺動子の両表層の前記炭素繊維束は、前記接点部の延出方向に沿って延出している請求項１ないし１０のいずれか１項に記載の摺動接点。 The slider is configured such that at least three plate-like layers of the carbon fiber bundles covered with the resin are laminated, and the extending directions of the carbon fiber bundles of adjacent layers are alternated. 11. The sliding according to claim 1, wherein the carbon fiber bundles on both surface layers of the slider in the stacking direction extend along the extending direction of the contact portion. contact.
  13. 　前記摺動子は、前記樹脂で覆われた前記炭素繊維束の板状の層が少なくとも３層、積層されており、隣り合う層の前記炭素繊維束の延出方向が交互となるように構成されており、積層方向における前記摺動子の両表層の前記炭素繊維束は、前記接点部の延出方向に沿って延出している請求項１１記載の摺動接点。 The slider is configured such that at least three plate-like layers of the carbon fiber bundles covered with the resin are laminated, and the extending directions of the carbon fiber bundles of adjacent layers are alternated. The sliding contact according to claim 11, wherein the carbon fiber bundles on both surface layers of the slider in the stacking direction extend along the extending direction of the contact portion.
  14. 　炭素繊維束に樹脂を含浸させる工程と、
    　前記樹脂を含浸させた前記炭素繊維束を、板状の基部と前記基部から延出した接点部とを有する摺動子の形状に加工する工程と、
    　前記摺動子の前記基部に摺動子保持体への取付部を備える金属板を重ねた状態で、熱プレスし、このとき、前記樹脂により前記金属板を前記摺動子の前記基部に貼り付ける成形工程と、
    　を有することを特徴とする摺動接点の製造方法。     Impregnating the carbon fiber bundle with resin;
    Processing the carbon fiber bundle impregnated with the resin into the shape of a slider having a plate-like base portion and a contact portion extending from the base portion;
    In a state where a metal plate provided with an attachment portion to the slider holder is superposed on the base portion of the slider, hot pressing is performed, and at this time, the metal plate is attached to the base portion of the slider with the resin. Attaching molding process,
    A method for producing a sliding contact, comprising:
  15. 　前記樹脂は熱硬化樹脂であり、前記熱プレスにより、前記熱硬化樹脂の加熱硬化と同時に前記金属板を前記摺動子の前記基部に貼り付ける請求項１４記載の摺動接点の製造方法。 15. The method of manufacturing a sliding contact according to claim 14, wherein the resin is a thermosetting resin, and the metal plate is attached to the base portion of the slider simultaneously with heat curing of the thermosetting resin by the hot press.
  16. 　前記摺動子の基部に金属板を重ね合わせた摺動接点の両表面に離型シートを配置した状態で、前記熱プレスを行う請求項１４又は１５に記載の摺動接点の製造方法。 The method for manufacturing a sliding contact according to claim 14 or 15, wherein the hot pressing is performed in a state where release sheets are arranged on both surfaces of the sliding contact in which a metal plate is superimposed on a base portion of the slider.
PCT/JP2011/068516 2010-11-18 2011-08-15 Sliding contact and method for producing same WO2012066831A1 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57122630U (en) * 1981-01-23 1982-07-30
JP2001351807A (en) * 2000-06-09 2001-12-21 Tokyo Cosmos Electric Co Ltd Slider for variable resistor
JP2004119244A (en) * 2002-09-27 2004-04-15 Niles Co Ltd Movable contact structure of slide switch and mounting method of movable contact
JP2008276965A (en) * 2007-04-25 2008-11-13 Alps Electric Co Ltd Manufacturing method of sliding contact
JP2009152116A (en) * 2007-12-21 2009-07-09 Teikoku Tsushin Kogyo Co Ltd Automatic resetting electronic component, and assembling method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57122630U (en) * 1981-01-23 1982-07-30
JP2001351807A (en) * 2000-06-09 2001-12-21 Tokyo Cosmos Electric Co Ltd Slider for variable resistor
JP2004119244A (en) * 2002-09-27 2004-04-15 Niles Co Ltd Movable contact structure of slide switch and mounting method of movable contact
JP2008276965A (en) * 2007-04-25 2008-11-13 Alps Electric Co Ltd Manufacturing method of sliding contact
JP2009152116A (en) * 2007-12-21 2009-07-09 Teikoku Tsushin Kogyo Co Ltd Automatic resetting electronic component, and assembling method thereof

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JP5519802B2 (en) 2014-06-11

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