JP2010141235A - Thin sheet type holding tool - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a thin sheet type holding tool capable of holding even a compact component having a shorter axial length as desired. <P>SOLUTION: The thin sheet type holding tool 1 has an elastic member 6 having a plurality of holding holes 17 formed by penetration to hold the compact component; and a reinforcing member 11 having a plurality of support holes 21 arrayed at intervals and convex sections 31 and 32 extending in the array direction of the support holes 21 and protruding in axial directions of the support holes 21, the reinforcing member 11 being buried in the elastic member 6 such that axes of the support holes 21 and holding holes 17 are aligned with each other. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a thin-leaf holding jig, and more particularly to a thin-leaf holding jig that can hold a small component having a further reduced axial length as desired.

  Integrated circuits used in electronic devices such as computers, telephones, game machines, and automobile electrical devices are equipped with small components such as a multilayer ceramic capacitor chip (sometimes simply referred to as a capacitor chip). . When manufacturing such a small component, a holding jig for holding a member for small component capable of manufacturing a small component is usually used.

  As such a holding jig, for example, Patent Document 1 states that “a flat plate as a whole, and each electronic component chip is held in a state where each of the plurality of electronic component chips is received and received one by one. A holder body made of an elastic body, in which a plurality of holding holes with dimensions are distributed in the central region, and embedded in the holder body to reinforce the holder body, An electronic component chip holder comprising a rigid body and including a core member forming a bone portion passing through each of the plurality of holding holes of the holder main body in a central region thereof. The through holes are distributed, and the elastic body constituting the holder body fills the through holes, and the elastic bodies located in the through holes are elastic bodies located on the main surfaces of the core member. Ream Characterized in that it is adapted to the holder for electronic component chips. "It is described.

  As another holding jig, for example, Patent Document 2 discloses that “a flat frame having a plurality of through holes and a hard member which is provided integrally with the frame and surrounds the periphery of the frame. A chip-like shape having a frame and an elastic member that covers the surface of the frame inside the frame and has a part holding hole having a diameter smaller than the maximum width of the chip-like electronic component in the through-hole portion in an unloaded state In the electronic component holding plate, a concave portion that is recessed in the thickness direction of the frame is provided between the connecting portion connected to the frame body of the frame and the frame body, and the peripheral portion of the elastic member is embedded in the concave portion. The chip-shaped electronic component holding plate characterized by the above. "

  By the way, in recent years, electronic devices have been miniaturized and highly functionalized, and accordingly, integrated circuits and the small components mounted thereon are being further miniaturized. As an example of such a small component, there are a small component whose axial length is further shortened and a small component member that can manufacture this small component. For example, the axial length is only about 0.4 mm. There are no small parts and members for small parts.

  In order to hold a small component and a component for a small component whose axial length is further shortened, the so-called “thin thickness is reduced in consideration of low operability due to the small size. A “thin leaf-like” holding jig, preferably a thin leaf-like holding jig that is adjusted to such a thickness that both ends in the axial direction protrude when a small component or the like is held is used.

  In such a thin-leaf holding jig, as described in Patent Document 2, the holding hole for holding the small component and the small component member is smaller than the cross-sectional dimensions of the small component and the small component member. Formed in cross-sectional dimensions. Then, since the thickness of the thin-leaf holding jig is adjusted to be thin in the first place, the thin-leaf holding jig may be deformed when the small component, the small component member, and the like are pressed and inserted into the holding hole. When the thin leaf-shaped holding jig is deformed in this way, the small component or the small component member is held in a desired holding state, for example, the small component or the small component member is raised from the holding jig, It becomes impossible to hold a plurality of small components or small component members in a state where the amount of projection of the small components or small component members from the surface of the jig is constant. Such a problem becomes more prominent as the holding jig is used more frequently. And, when a small component or a small component member is pressed and inserted, if the thin leaf holding jig is not deformed and returns to its original shape, the small component or small component member cannot be held in a desired holding state. .

Japanese Patent No. 2891005 Japanese Patent No. 3262930

  An object of the present invention is to provide a thin leaf-like holding jig that can hold a small component having a shorter axial length as desired.

As means for solving the problems,
According to a first aspect of the present invention, there is provided an elastic member having a plurality of holding holes formed so as to be able to hold a small component, a plurality of support holes arranged at intervals, and an arrangement direction of the support holes. And a reinforcing member having a ridge extending along the axial direction of the support hole, and the reinforcing member is elastic so that the axes of the support hole and the holding hole substantially coincide with each other. It is a thin-leaf holding jig characterized by being embedded in a member,
The thin-leaf holding jig according to claim 1, wherein the protrusion has a side surface that rises perpendicularly or at an acute angle to a virtual plane including the opening of the support hole. And
According to a third aspect of the present invention, the reinforcing member is embedded in the elastic member such that a top surface of the protrusion is exposed on the surface of the elastic member. A thin-leaf holding jig,
The thin-leaf holding jig according to any one of claims 1 to 3, wherein the holding hole has an axial length shorter than an axial length of the small component. It is.

  The thin-leaf holding jig according to the present invention includes a reinforcing member having a protrusion extending along the arrangement direction of the support holes and protruding along the axial direction of the support holes. Even when a small component is sometimes pressed against a thin leaf holding jig, it is difficult to be deformed and the flatness can be maintained. As a result, the thin-leaf holding jig according to the present invention can hold a large number of small parts in a desired holding state, for example, a state in which the small parts stand up, even if the axial length is further reduced. It can be held in a state where the protruding amount of the small component is constant. Therefore, according to the present invention, it is possible to provide a thin leaf-like holding jig that can hold a small component whose axial length is further shortened as desired.

  The small component held by the thin-leaf holding jig according to the present invention is a small component member capable of manufacturing a small component, for example, a small instrument, which needs to be held in a manufacturing process, a conveying process, etc. Members, small machine element members, small electronic component members, and the like. In addition, since the manufacture of small parts includes a process of transporting small parts, the small parts include small parts themselves, for example, small appliances, small mechanical elements, and small electronic parts. Therefore, in the present invention, it is not necessary to clearly distinguish between a small component and a small component member, and even when referred to as a “small component”, it may mean “small component and small component member”. As the small electronic component and the small electronic component member, for example, a finished or unfinished product such as a capacitor chip (also referred to as a multilayer ceramic capacitor chip), an inductor chip, a resistor chip, and / or the like, and / or These include, for example, a prism or cylinder, a prism or cylinder having ridges at one end, a prism or cylinder having ridges at both ends, and the like.

  As small parts held by the thin leaf holding jig according to the present invention, among these small parts, when held by the thin leaf holding jig, along the axis of the holding hole in the thin leaf holding jig. A small component having a further reduced axial length and a small component member capable of manufacturing such a small component are particularly suitable. These small components and small component members are small in size and have low operability, and the conventional holding jig cannot be held as desired. According to this, almost all small parts or members for small parts can be held as desired, and the object of the present invention can be achieved well. Such a small component and a small component member whose axial length is further shortened, for example, has an axial length of only about 0.4 mm and an axial length of 1.6 to 3.2 mm. Very short compared to parts.

  The thin-leaf holding jig according to the present invention is used for a process of holding a small part and manufacturing the small part, a process of conveying the small part, and / or storage of the small part. This thin-leaf holding jig is preferably used in a process of forming electrodes on the end of a small component member, for example, a capacitor chip member. For example, a process of forming electrodes on both ends of the capacitor chip member sequentially or all at once. Are particularly preferably used.

  A thin-leaf holding jig 1 according to an embodiment of the thin-leaf holding jig according to the present invention will be described with reference to the drawings. As shown in FIG. 1, the thin-leaf holding jig 1 is arranged with an elastic member 6 having a plurality of holding holes 17 penetratingly formed so as to be able to hold a small part, with an interval. A plurality of support holes 21 and a reinforcing member 11 having protrusions 31 and 32 that extend along the arrangement direction of the support holes 21 and project along the axial direction of the support holes 21 are provided. The member 11 is embedded in the elastic member 6.

  The reinforcing member 11 is embedded in the elastic member 6 and reinforces the elastic member 6 so that the elastic member 6 becomes flat. As clearly shown in FIG. 2, the reinforcing member 11 has a rectangular plate shape having a flat portion 23 through which the support hole 21 is formed and a flange portion 24 surrounding the flat portion 23. As clearly shown in FIGS. 1B and 2B, the flange 24 is formed continuously with the end surface of the flat portion 23 and has a thickness larger than the thickness of the flat portion 23. Yes. The flange 24 is adjusted so that the protruding amount in the upper surface direction and the lower surface direction of the flat portion 23 is constant, and the thickness thereof is adjusted to be flush with the surface of the elastic member 6 described later. Yes.

  A support hole 21 through which the holding hole 17 of the elastic member 6 passes is formed in the flat portion 23 of the reinforcing member 11. The support holes 21 are formed in a large number, for example, about 100 or more, preferably at least about 1000 or more, more preferably at least about 2000 or more (in FIG. 2, a part of the support holes 21 is illustrated. Not.) When a large number of support holes 21 are formed in the reinforcing member 11, productivity in a method for manufacturing a small part using the thin leaf holding jig 1 is improved. The support holes 21 are arranged at intervals, and are usually arranged in the same arrangement pattern as an arrangement pattern in which holding holes 17 described later are arranged. Specifically, in the reinforcing member 11, like the holding hole 17, the plurality of support holes 21 are arranged in a grid pattern with predetermined intervals in the vertical and horizontal directions. The arrangement interval of the support holes 21 can be arbitrarily adjusted according to the size of small parts inserted and held in the thin leaf holding jig 1.

  The shape of the opening of the support hole 21 opening on the surface of the reinforcing member 11 and the cross-sectional shape when the support hole 21 is cut in a horizontal plane parallel to the reinforcing member 11 are not particularly limited. A shape such as a rectangle or a polygon can be arbitrarily selected. The opening shape and the cross-sectional shape may be the same shape. In the reinforcing member 11, the opening shape and the cross-sectional shape of the support hole 21 are substantially square. The support hole 21 is adjusted to an appropriate size larger than the holding hole 17 in accordance with the size of the small component held in the holding hole 17.

  As shown in FIG. 2, protrusions 31 and 32 are formed on the flat portion 23. The protrusions 31 and 32 extend continuously between the plurality of support holes 21 arranged in both arrangement directions along the both arrangement directions of the support holes 21, and the axial direction of the support holes 21. It is formed so as to protrude along. In FIG. 2, the direction along the line AA is referred to as a horizontal direction.

  Specifically, the ridges 31 pass between the plurality of support holes 21 arranged in the vertical arrangement direction in the grid-like arrangement pattern in which the plurality of support holes 21 are arranged, and this grid-like arrangement is provided. It extends continuously along the horizontal arrangement direction in the pattern. Further, the ridges 32 pass between the plurality of support holes 21 arranged in the horizontal arrangement direction in the grid-like arrangement pattern in which the plurality of support holes 21 are arranged, and are vertically arranged in the grid-like arrangement pattern. It extends continuously along the arrangement direction. These protrusions 31 and 32 are both formed between the support holes 21 arranged in the vertical arrangement direction and between the support holes 21 arranged in the horizontal arrangement direction, in other words, the vertical arrangement direction. The support holes 21 and the ridges 31 or 32 are alternately formed in any of the horizontal arrangement directions. And as FIG.1 (b) and FIG.2 (b) show, both the protrusions 31 and 32 protrude along the bidirectional | two-way of the axial direction of the support hole 21. As shown in FIG. If the reinforcing member 11 has such protrusions 31 and 32, even when the reinforcing member 11 is formed in a thin plate shape, it is possible to prevent the flatness from being greatly impaired when holding a small component. it can.

  As shown in FIGS. 1B and 2B, each of the protrusions 31 and 32 has a side surface 35 that rises perpendicular to the virtual plane P including the openings 22 of the plurality of support holes 21. is doing. When the protrusions 31 and 32 have such side surfaces 35, the adhesion area between the elastic member 6 and the reinforcing member 11 increases, and the elastic member 6 and the reinforcing member 11 are not easily in contact with each other.

  Further, as shown in FIGS. 1B and 2B, the protrusions 31 and 32 have their top surfaces 36 exposed at the surface of the elastic member 11. When the top surfaces 36 of the protrusions 31 and 32 are exposed on the surface of the elastic member 11, the elastic member 6 is surrounded by the protrusions 31 and 32 as will be described later, as shown in FIG. Since it becomes a cylindrical body, it is hardly affected by the deformation of the elastic member when the small parts are held in the adjacent holding holes 17, and almost all the small parts are obtained even if small parts with particularly low dimensional accuracy are used. It can be held in a similar posture. The top surface 36 is flush with the surface of the elastic member 11 as shown in FIGS. 1 (b) and 2 (b). Thus, the protrusions 31 and 32 have a constant width in the protruding direction, and the cross-sectional shape perpendicular to the extending direction of the protrusions 31 and 32 is rectangular or square.

  The protrusions 31 and 32 are not particularly limited in size and shape as long as the flatness of the reinforcing member 11 and the thin leaf-shaped holding jig 1 can be maintained. For example, the protrusions 31 and 32 only have to have a width that can be formed between the support holes 21 arranged in the arrangement direction, and this width is between the support holes 21 arranged in the arrangement direction. Adjusted to less than the distance. Further, the protrusions 31 and 32 only have to extend in the arrangement direction, and as shown in FIGS. 1B and 2B, both ends thereof are connected to the flange 24 described later. It is preferable. As shown in FIG. 1 (b), the protrusions 31 and 32 have a height that is the same as that of the elastic member 11 and the flange 24, that is, the protrusion 36 is exposed to the surface of the elastic member 11. It has been adjusted. In this example, the ridges 31 and 32 are each adjusted to have a width of about 1 mm and a height of about 0.1 mm in consideration of the flatness of the thin leaf-shaped holding jig 1 and damage to small parts.

  The size of the reinforcing member 11 is adjusted in consideration of the productivity of small parts, the size of the small parts, the strength of the thin leaf holding jig 1, and the like. For example, the thickness of the flange portion 24 in the reinforcing member 11 can be adjusted to 0.2 to 0.7 mm, and the thickness of the flat portion 23 can be adjusted to 0.1 to 0.6 mm. The thickness of the reinforcing member 11 is smaller than the axial length of such a small component in that even a small component with a short axis length can be held through the holding hole 17 in a standing state. For example, it is preferable that the thickness of the collar portion 24 is adjusted to 0.2 to 0.6 mm, and the thickness of the flat portion 23 is adjusted to 0.1 to 0.5 mm. If the thin-leaf holding jig 1 is a thin-leaf holding jig provided with such a thin reinforcing member 11, the thin-leaf holding jig 1 can be inverted to form electrodes at both ends of the small component. And productivity can be improved.

  The reinforcing member 11 is formed of a material that can maintain the elastic member 6 in a flat shape. Examples of such materials include metals and resins. Specific examples of the metal include stainless steel, carbon steel, aluminum, aluminum alloy, and nickel alloy. Examples of the resin include polyester, polytetrafluoroethylene, polyimide, polyphenylene sulfide, polyamide, polycarbonate, polystyrene, and polypropylene. , Polyethylene and polyvinyl chloride. The reinforcing member 11 is preferably formed of stainless steel, aluminum, an aluminum alloy, a polyphenylene sulfide resin, or the like from the viewpoint of workability and operability, and can achieve both strength and lightness at a high level. It is particularly good to be made of stainless steel. It is preferable that the flat portion 23, the flange portion 24, and the protrusions 31 and 32 of the reinforcing member 11 are basically formed of the same material.

  As shown in FIGS. 1A and 1B, the elastic member 6 of the thin leaf-shaped holding jig 1 has a large number of holding holes 17 perforated so that the flat portion 23 can be accommodated therein. have. As shown in FIG. 1B, the elastic member 6 embeds the flat portion 23 of the reinforcing member 11, in other words, covers both surfaces of the flat portion 23 and penetrates into the support hole 21 of the reinforcing member 11. However, the reinforcing member 11 is formed so as to be flush with the flange 24 and the ridges 31 and 32. That is, the elastic member 6 is disposed on the surface of the flat portion 23 and is surrounded by the flange portion 24 and the protrusions 31 and 32 of the reinforcing member 11. As described above, the elastic member 6 includes the flange portion 24 and the side surfaces 35 of the protrusions 31 and 32, the flange portion 24, the vicinity of the opening 22 of the support hole 21 surrounded by the protrusions 31 and 32, and the support hole 21. It is formed of an aggregate of cylindrical bodies covering the inner surface and having through-holes penetrating in the axial direction and flange portions at both ends in the axial direction. Here, the elastic member 6 embeds the reinforcing member 11, particularly the flat portion 23, so that the axis of each of the support holes 21 and the axis of each of the holding holes 17 coincide. In other words, as shown in FIG. 1B, the holding hole 17 is formed so as to penetrate one support hole 21 among the support holes 21 so as to share the axis of each other. Furthermore, the holding hole 17 penetrating a certain support hole 21 drilled in the reinforcing member 11 is drilled at a position where the axis line coincides with the axis line of the support hole 21. When the elastic member 6 is formed in this manner, the adhesiveness between the elastic member 6 and the reinforcing member 11 is excellent, and the insertion and extraction of small parts is facilitated.

  As shown in FIG. 1, the elastic member 6 has a large number of holding holes 17 for elastically holding a small part inserted or penetrated. The holding hole 17 has an axial length shorter than the axial length of the small component. When the holding hole 17 has such an axial length, for example, as shown in FIG. 6, both axial ends of the small component are held in a state of protruding from both surfaces of the thin leaf holding jig 1. And the productivity of small parts can be improved.

  The elastic member 6 has a large number of holding holes 17, for example, about 100 or more, preferably at least about 1000 or more, more preferably at least about 2000 or more (in FIG. The part is not shown.) When a large number of holding holes 17 are formed in the elastic member 6, productivity in a method for manufacturing a small part using the thin leaf holding jig 1 is improved. The holding hole 17 is formed in accordance with a desired pattern in consideration of the size of small parts, productivity, and the like. In this example, the holding holes 17 are formed in a grid pattern at predetermined intervals in the vertical and horizontal directions.

  The shape of the opening of the holding hole 17 that opens to the surface of the elastic member 6 and the cross-sectional shape when the holding hole 17 is cut in a horizontal plane parallel to the elastic member 6 are not particularly limited. A shape such as a rectangle or a polygon can be arbitrarily selected. The opening shape and the cross-sectional shape may be the same shape. In the elastic member 6, the opening shape and the cross-sectional shape of the holding hole 17 are substantially square. The holding hole 17 is adjusted to an appropriate size smaller than the support hole 21 according to the size of the small component.

  The elastic member 6 preferably has a flat surface. The elastic member 6 preferably has a predetermined elongation, tensile strength, and hardness so as to be elastically deformed and not damaged when a small part is inserted and / or removed. For example, the elongation at break (tensile speed 500 mm / min) specified in JIS K6249 is preferably 200 to 1000%, particularly preferably 400 to 900%, and the tensile strength (tensile speed specified in JIS K6249). 500 mm / min) is preferably 5 to 15 MPa, particularly preferably 7 to 14 MPa, and the hardness (JIS A) specified in JIS K6253 is preferably 20 to 80, and preferably 40 to 60. Is particularly preferred.

  The elastic member 6 has its dimensions adjusted in consideration of the productivity of small parts and the dimensions of the small parts. For example, the thickness of the elastic member 6 can be adjusted to a thickness that is flush with the flange 24 of the reinforcing member 11. When the elastic member 6 has a thickness that is flush with the flange 24 and the ridges 31 and 32 having the above-described thickness, the thin-leaf holding jig 1 can improve productivity. This is particularly preferable in that the object of the present invention can be achieved well.

  The elastic member 6 only needs to be formed of a molding material that can be elastically deformed and insert and hold a small component. Examples thereof include rubber and elastomer, and more specifically, silicone rubber. Among silicone rubbers, a silicone rubber obtained by crosslinking a linear polydimethylsiloxane having a high polymerization degree or a copolymer thereof to impart rubber elasticity, or an acid-resistant silicone rubber is preferable. Examples of the silicone rubber obtained by cross-linking linear polydimethylsiloxane having a high degree of polymerization include commercial names “KE-1950-50” and “KE-9510U” (both manufactured by Shin-Etsu Chemical Co., Ltd.). .

  As shown in FIG. 3, a thin-leaf holding jig 2, which is another embodiment of the thin-leaf holding jig according to the present invention, has a plurality of holding holes formed so as to be able to hold small parts. The elastic member 7 having the holes 17, a plurality of support holes (not shown in FIG. 3) arranged at intervals, and extending along one of the arrangement directions of these support holes and these And a reinforcing member 12 having a ridge 31 protruding along the axial direction of the support hole. The reinforcing member 12 is embedded in the elastic member 7.

  This thin leaf-shaped holding jig 2 has the protrusions 31 extending along only the horizontal arrangement direction in the arrangement direction of the support holes. In other words, the thin leaf-shaped holding jig 2 has the protrusions 32 in the thin leaf-shaped holding jig 1. It is basically the same as the thin leaf holding jig 1 except that it is not. That is, the reinforcing member 12 in the thin leaf-shaped holding jig 2 is continuously provided between the support holes arranged in the vertical arrangement direction of the support holes along the horizontal arrangement direction of the support holes, as shown in FIG. The flat part (not shown in FIG. 3) which has the protrusion 31 which extends along the axial direction of a support hole while extending is provided.

  In this thin leaf-shaped holding jig 2, the elastic member 7 embeds a flat portion of the reinforcing member 12. In other words, the elastic member 7 covers both surfaces of the flat portion and penetrates into the support holes of the reinforcing member 12. It is formed so as to be flush with the buttocks and ridges 31.

  As shown in FIG. 4, a thin-leaf holding jig 3 as another embodiment of the thin-leaf holding jig according to the present invention includes a plurality of through-holes formed so as to be able to hold small parts. The elastic member 8 having the holding holes 17, a plurality of support holes arranged at intervals (not shown in FIG. 4), and these support holes extending intermittently along the arrangement direction of these support holes And a reinforcing member 13 having a protrusion 33 protruding along the axial direction of the hole. The reinforcing member 13 is embedded in the elastic member 8.

  The thin leaf holding jig 3 is basically the same as the thin leaf holding jig 1 except that the thin leaf holding jig 3 has protrusions 33 extending intermittently along the arrangement direction of the support holes. That is, as shown in FIG. 4, the reinforcing member 13 in the thin leaf-shaped holding jig 3 intermittently extends between the support holes arranged in the support hole arrangement direction along the support hole arrangement direction. In addition, a flat portion (not shown in FIG. 4) having a ridge 33 protruding along the axial direction of the support hole is provided. And this protrusion 33 protrudes at intervals in the arrangement direction of the support holes as shown in FIG. 4, and extends intermittently in the arrangement direction so as to form a substantially cross shape. It protrudes in the axial direction. That is, the flat portion of the reinforcing member 13 has an assembly of substantially cross-shaped protrusions 33.

  In this thin leaf-shaped holding jig 3, the elastic member 8 embeds the flat portion of the reinforcing member 8, in other words, covers both surfaces of the flat portion and penetrates into the support holes of the reinforcing member 8. It is formed so as to be flush with the flange portion and the protrusion 33.

  As shown in FIG. 5, a thin-leaf holding jig 4, which is still another embodiment of the thin-leaf holding jig according to the present invention, has a plurality of through holes formed so as to be able to hold small parts. Elastic member 9 having a plurality of holding holes 17, a plurality of support holes 21 arranged at intervals, and extending along the arrangement direction of the support holes 21 and along the axial direction of the support holes 21. And a reinforcing member 14 having protruding protrusions 34, and the reinforcing member 14 is embedded in the elastic member 9.

  The thin leaf-shaped holding jig 4 is the same as the thin leaf-shaped retaining jig except that a protrusion 34 having a side surface 37 rising at an acute angle with respect to a virtual plane including the opening of the support hole 21 is formed on the reinforcing member 14. Basically the same as tool 1. As shown in FIG. 5, the protrusion 34 has a width in the protruding direction that decreases at a constant rate toward the top surface, and a cross-sectional shape perpendicular to the extending direction of the protrusion 34 is trapezoidal. .

  The thin leaf-shaped holding jig according to the present invention can elastically hold a small part in the holding hole. The holding of the small part to the thin leaf holding jig according to the present invention is performed by using the thin leaf holding jig 1 shown in FIG. 1 as the holding jig according to the present invention, and the capacitor chip member 19 of the square pillar body as the small part. An example will be specifically described.

  In order to hold the capacitor chip member 19, for example, the capacitor chip member 19 has through holes arranged in the same arrangement pattern at the same interval as the holding holes 17 in the thin leaf holding jig 1, and the axis of the capacitor chip member 19 is substantially the same. Prepare an alignment plate for temporary storage in a vertical state. Then, this alignment plate is superposed on the thin-leaf holding jig 1, a large number of capacitor chip members 19 are placed on the alignment plate, and the alignment plate is vibrated by appropriate means. Then, the capacitor chip member 19 is temporarily stored in the through hole. Thus, for example, a flat pressing plate is arranged on the end face of the capacitor chip member 19 temporarily accommodated in the through hole, and this pressing plate is moved in parallel to the thin leaf holding jig 1 side. At this time, since the thin leaf-shaped holding jig 1 includes the reinforcing member 11 having the protrusions 31 and 32, the pressure due to the press fitting of the capacitor chip member 19 into the holding hole 17 is applied to the thin leaf-shaped holding jig 1. Even though the thin leaf-shaped holding jig 1 is thin, it can maintain its flatness. Then, the capacitor chip member 19 temporarily accommodated in the through hole is press-fitted into the holding hole 17 while holding the holding state, and is held in the holding hole 17 as desired. For example, as shown in FIG. 6, most of the capacitor chip members 19 stand up substantially perpendicular to the surface of the thin leaf-shaped holding jig 1, that is, the horizontal plane, in other words, the axis of the capacitor chip member 19 And the axis of the holding hole 17 are held substantially coincident with each other. Further, as shown in FIG. 6, most of the capacitor chip members 19 are in a state in which the amount of protrusion from the surface of the thin leaf-shaped holding jig 1 is substantially constant. A large number of end faces are held in a substantially flush state. In this way, the majority of capacitor chip members 19 can be held in a substantially uniform state.

  The end face of the capacitor chip member 19 held in this manner is immersed in, for example, an electrode paste bath, the electrode paste is applied to the end face, and the electrode paste is dried, whereby an electrode is applied to the end face of the capacitor chip member 19. Can be formed. At this time, as described above, since the majority of capacitor chip members 19 are held in a uniform state, the formed electrodes have high dimensional accuracy.

  In particular, since the thin-leaf holding jig 1 can maintain high flatness, even the capacitor chip member 19 having a further reduced axial length can hold almost all of them in a substantially uniform state. can do. As described above, when holding the capacitor chip member 19 whose axial length is further shortened in the holding hole 17, high operation accuracy is required, but the thin leaf holding jig 1 maintains its dimensional and shape accuracy. Thus, high operation accuracy can be realized. Therefore, the thin-leaf holding jig 1 can be used particularly preferably for holding the capacitor chip member 19 whose axial length is further shortened, and its usefulness is extremely large.

  The thin leaf holding jigs according to the present invention, for example, the thin leaf holding jigs 2 to 4 have basically the same effects as the thin leaf holding jig 1 and are extremely useful.

  A method for manufacturing the thin leaf-shaped holding jig according to the present invention will be described below with reference to the thin leaf-shaped holding jig 1. First, the reinforcing member 11 is produced. The reinforcing member 11 cuts out a plate-like body composed of the flat portion 23 having the ridges 31 and 32 and the flange portion 24 around the rim 31 or 32 from the plate body made of metal or resin, or the ridges 31 and 32. The flat part 23 and the collar part 24 having the above can be cut out separately and joined together. The reinforcing member 11 is manufactured by drilling a plurality of support holes 21 having a predetermined shape in the flat portion 23 thus manufactured in a predetermined pattern by grinding, cutting, file finishing, or the like. The protrusions 31 and 32 can be produced separately from the flat portion 23 and bonded to the flat portion 23.

  A mold having a cavity capable of storing the reinforcing member 11 thus prepared is prepared, and the reinforcing member 11 is stored. The elastic material is molded by injecting an elastic material into the gap formed by the mold and the reinforcing member 11. The molding method of the elastic material is not particularly limited, and for example, a molding method such as compression molding, injection molding, or transfer molding can be employed. When the molded elastic member 6 has a molding burr on its surface, surface treatment such as grinding may be performed to remove the molding burr. For example, the surface treatment includes surface grinding, milling, lapping and the like. In addition, in order to ensure hardening of the elastic member 6 after shaping | molding of the elastic member 6, you may perform secondary heating or heat processing.

  The holding hole 17 is drilled through the support hole 21 of the reinforcing member 11 embedded in the molded body formed in this way, for example, with a cutting tool, a cutter or the like. In this way, it is possible to manufacture the thin leaf-shaped holding jig 1 including the elastic member 6 through which the holding hole 17 is formed.

  As another manufacturing method for manufacturing the thin-leaf holding jig according to the present invention, for example, the following method can be cited. First, a mold having a cavity capable of accommodating the reinforcing member 11 and having a molding pin capable of forming the holding hole 17 is prepared. Next, when the reinforcing member 11 is housed in the mold, a molding pin is disposed so as to penetrate each support hole 21 of the reinforcing member 11 and a space is formed in a portion where the elastic member 6 is formed. Thereafter, an elastic material is injected into the gap and the elastic material is molded in the same manner as in the manufacturing method. Thus, the elastic member 6 having the holding hole 17 is formed in one step, and the thin-leaf holding jig 1 is manufactured. can do.

  The thin leaf-shaped holding jig according to the present invention is not limited to the above-described embodiments, and various modifications can be made within a range in which the object of the present invention can be achieved. For example, the thin-leaf holding jigs 1, 3, and 4 have the reinforcing members 11 having protrusions 31, 32, 33, and 34 that extend along the entire arrangement direction of the support holes 21, that is, the vertical arrangement direction and the horizontal arrangement direction. In this invention, the reinforcing member of the thin leaf holding jig only needs to have a protrusion extending along at least one arrangement direction of the arrangement directions of the support holes.

  The thin leaf-shaped holding jigs 1 to 4 include reinforcing members 11 to 14 having protrusions 31 to 34 protruding in both directions along the axial direction of the support hole 21. The reinforcing member of the jig may have a protrusion that protrudes in one direction along the axial direction of the support hole. That is, the protrusion may be formed on both surfaces of the flat portion, or may be formed on one surface.

  The thin-leaf holding jigs 1 to 4 are provided with reinforcing members 11 to 14 having protrusions 31, 32, 33, and 34 extending between the support holes 21 so as to alternate with the support holes 21. However, in the present invention, the reinforcing member of the thin leaf-shaped holding jig may not have the support holes and the protrusions alternately arranged and formed, for example, the protrusions are arranged and formed for every two rows of the support holes. Or a protrusion may be arranged and formed for every three support hole rows.

  The thin-leaf holding jigs 1 to 4 have reinforcing members 11 to 13 in the elastic members 6 to 9 so that the top surfaces 36 of the ridges 31, 32, 33, and 34 are exposed on the surfaces of the elastic members 6 to 9. However, in this invention, the reinforcing member may be embedded in the elastic member so that the entire top surface or a part of the protrusion is not exposed on the surface of the elastic member.

  The thin-leaf holding jigs 1, 2, and 4 include reinforcing members 11, 12, and 14 having protrusions 31, 32, and 34 that are connected to the flange portion 24 at both ends. The protrusions may not have both ends or one end connected to the collar.

  The thin-leaf holding jigs 1 to 4 include reinforcing members 11 to 14 having protrusions 31 to 34 having a rectangular, square, or trapezoidal cross section perpendicular to the extending direction. The cross-sectional shape of the protrusion is not particularly limited, and may be, for example, a polygon such as a triangle or a square, a semicircular shape, or a semielliptical shape. In addition, the thin leaf-shaped holding jig 4 includes the reinforcing member 14 having the protrusion 34 whose width in the protruding direction decreases at a constant rate toward the top surface thereof. The width in the protruding direction may decrease with an arbitrary curvature toward the top surface.

  The thin leaf-shaped holding jigs 1 to 4 include reinforcing members 11 to 14 having protrusions 31 to 34 extending in a line along the arrangement direction of the support holes 21. The protrusions may extend in two or more rows substantially in parallel along the arrangement direction of the support holes.

  The thin-leaf holding jigs 1, 2, and 4 are provided with reinforcing members 11, 12, and 14 having ridges 31, 32, and 34 extending continuously, and the thin-leaf holding jig 3 is spaced apart from each other. However, in the present invention, the protrusions of the reinforcing member may extend intermittently with an arbitrary interval.

  In this invention, the protrusion of the reinforcing member may be a protrusion formed by combining the protrusions 31 to 34 and the modification.

  In the thin-leaf holding jigs 1 to 4, the support holes 21 and the holding holes 17 are arranged in a grid pattern, but in this invention, the arrangement of the support holes and the holding holes is not limited to a grid pattern, The support holes and the holding holes are, for example, a honeycomb arrangement in which regular hexagons are closely arranged, a square arrangement rotated 45 degrees vertically and horizontally, a radial arrangement from one point, a radial curve arrangement , And may be arranged in accordance with a concentric circular arrangement, a spiral arrangement arranged from one point, or the like.

FIG. 1 is a schematic view showing a thin leaf holding jig as an embodiment of the thin leaf holding jig according to the present invention, and FIG. 1 (a) is an embodiment of the thin leaf holding jig according to the present invention. FIG. 1B is a schematic top view showing an example of a thin-leaf holding jig, and FIG. 1B is a schematic cross-section showing a part of a cross section of the thin-leaf holding jig cut along the line AA in FIG. FIG. FIG. 2 is a schematic view showing a reinforcing member of a thin leaf holding jig which is an embodiment of the thin leaf holding jig according to the present invention. FIG. 2 (a) is a thin leaf holding jig according to the present invention. FIG. 2B is a schematic top view showing a reinforcing member of a thin-leaf holding jig that is an embodiment of the present invention, and FIG. 2B is a reinforcing member of the thin-leaf holding jig cut along the line AA in FIG. It is a schematic sectional drawing which shows a part of cross section in. FIG. 3 is a schematic top view showing a thin leaf holding jig which is another embodiment of the thin leaf holding jig according to the present invention. FIG. 4 is a schematic top view showing a thin leaf holding jig which is another embodiment of the thin leaf holding jig according to the present invention. FIG. 5 is a schematic cross-sectional view showing a thin leaf holding jig which is still another embodiment of the thin leaf holding jig according to the present invention. FIG. 6 is a schematic cross-sectional view showing a holding state of the capacitor chip member held by the thin leaf holding jig which is an embodiment of the thin leaf holding jig according to the present invention.

Explanation of symbols

1, 2, 3, 4 Holding jig 6, 7, 8, 9 Elastic member 11, 12, 13, 14 Reinforcing member 17 Holding hole 21 Support hole 22 Opening part 23 Flat part 24 Gutter part 31, 32, 33, 34 Projections 35, 37 Side surface 36 Top surface 19 Capacitor chip member

Claims (4)

An elastic member having a plurality of holding holes formed so as to be able to hold a small component;
A plurality of support holes arranged at intervals, and a reinforcing member having a protrusion extending along the axial direction of the support holes while extending along the arrangement direction of the support holes,
The thin-leaf holding jig, wherein the reinforcing member is embedded in the elastic member so that the axes of the support hole and the holding hole substantially coincide with each other.   The thin-leaf holding jig according to claim 1, wherein the protrusion has a side surface that rises perpendicularly or at an acute angle with respect to a virtual plane including the opening of the support hole.   The thin-leaf holding jig according to claim 1 or 2, wherein the reinforcing member is embedded in the elastic member so that a top surface of the protrusion is exposed on a surface of the elastic member. .   The thin-leaf holding jig according to any one of claims 1 to 3, wherein the holding hole has an axial length shorter than an axial length of the small component.

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