JP2014012147A - Button fixing member and method for forming the same, and eyelet member and method for forming the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a button fixing member that has an improved appearance when viewed from the back side, in which waste fabric prone to remain in a post part of the button fixing member and a protruding-end side portion of the caulked post part cannot be seen from the back side.SOLUTION: A metallic button fixing member 10 used for fixing a button to fabric includes a plate-like base part 11 and a cylindrical post part 12 protruding out from the center of the base part. The protruding end surface of the post part is opened as an upper end opening 13 and the base end surface of the post part is opened as a bottom end opening 14 at the center of the base part. The button fixing member further includes a closing member 20 for closing the base end side of the inner part of the post part, and the closing member is formed by punching down a closing part closing the protruding end surface of a semi-post part which is an intermediate member to be processed to the button fixing member.

Description

  The present invention relates to a button attaching member, a button attaching member forming method, and an eyelet member and an eyelet member forming method, and more particularly, when attaching a button such as a male snap button or a decorative button to a cloth, a cylindrical post portion is formed on the cloth. Metal button attaching member to be penetrated through, a method for forming such a button attaching member, a metal eyelet member for penetrating the cylindrical portion through the cloth when attached to the cloth, and such an eyelet member are formed. Regarding the method.

  As a decorative button to be attached to the male snap button (male snap) of a snap button often used for joints of clothes or the corners of jeans pockets, it protrudes from the center of the flange and the flange. Has a closed convex part. When attaching such male snaps and decorative buttons to the fabric, a button mounting member having a base portion and a post portion protruding from the center of the base portion is generally formed by drawing a single metal plate. Used for. That is, after passing the post portion of the button mounting member through the fabric, the post portion is received in the inner space of the male snap or the convex portion of the decorative button, deformed and locked, so that the button of the male snap etc. Fixed to. Such a button mounting member is disclosed in, for example, US Pat. No. 3,351,987. In addition, as an eyelet for ventilation, water flow, and the like attached to the cloth, a metal plate is drawn and processed to have a base part and a cylindrical part protruding from the center of the base part, and a cylinder of the eyelet member The thing provided with the perforated member assembled | attached to a part from the outside is known.

  As described above, the post portion of the button mounting member formed of a single metal plate has a protruding end surface opened as an upper end opening and a proximal end surface opened as a lower end opening. Therefore, when attaching the button to the fabric, the post portion penetrates the fabric and the fabric waste separated from the fabric is caught on the protruding part of the crimped post portion, or the fabric waste does not completely separate from the fabric. In some cases, it stays in the post section. In this case, dough waste can be seen through the lower end opening from the back side of the base portion of the button mounting member, and the appearance of the dough deteriorates. Therefore, a separate dough removal operation for discharging the dough waste from the lower end opening is required. Furthermore, since the protruding side portion of the post portion crimped from the lower end opening of the button mounting member is visible, the aesthetics are also impaired in this case. In addition, although the button attachment member with the base end face of the post portion closed is also known, such a button attachment member cannot be obtained by drawing a single metal plate, and another member is provided at the lower end opening. Since an assembly process for assembly is required, there is a problem that the product cost increases. Further, the above-described eyelets for ventilation, water flow, etc. require a holed member in addition to the eyelet member, so that the material cost is increased accordingly.

US Pat. No. 3,351,987

  The present invention has been made in view of the above-described problems, and the object thereof can be separated from the fabric when the button is attached to the fabric or can remain in the post portion of the button mounting member without being separated. The projecting end side portion of the dough scraps and crimped post part is not visible from the back side of the button mounting member, and the aesthetics seen from the back side can be improved, and it is formed cost-effectively from a single metal plate It is an object to provide a possible button mounting member and a method of forming such a button mounting member.

  Another object of the present invention is to provide an eyelet member for ventilation, water passage, and the like, and a method for forming such an eyelet member, which can be formed cost-effectively.

  According to the present invention, in order to solve the above-described problems, a button is made of a metal used for attaching a button to a fabric (including a woven fabric, a fabric, a felt, a nonwoven fabric, a leather, and a resin sheet. The same applies hereinafter). A plate-like base portion and a cylindrical post portion protruding from the center of the base portion, the protruding end surface of the post portion being opened as an upper end opening, and the base end surface of the post portion being a lower end opening at the center of the base portion In the button mounting member that is opened as a button mounting member, there is provided a button mounting member having a closing member that closes the proximal end inside the post portion.

  In the present invention, by providing a closing member on the base end side of the inside of the post portion having the upper end opening and the lower end opening, the cloth scraps that can be separated from the dough when the button is attached to the dough or the crimped post portion The protruding end portion cannot be seen from the lower end opening. The base end side inside the post portion refers to the base end side from the middle in the axial direction of the post portion, and is a portion that is not deformed from the button when the button is attached to the cloth.

  Preferred examples of the material for the button mounting member include metals such as aluminum alloys and copper alloys, but other metals may also be used.

  In one embodiment of the present invention, the closing member is fixed in the post portion by pressurizing and contacting the outer peripheral surface of the closing member and the inner peripheral surface of the post portion. In this case, by making the outer diameter of the closing member slightly larger than the inner diameter of the base end side of the post portion, and pushing the closing member into the base end side in the post portion, the outer peripheral surface of the closing member and the inner peripheral surface of the post portion Are brought into pressure contact and the friction member fixes the closing member.

  In one embodiment of the present invention, the post portion has a step portion whose inner diameter is reduced stepwise toward the base end side of the inner peripheral surface, and the closing member is fixed on the step portion. In this case, the closing member is caught by the stepped portion and cannot move to the lower end opening side of the post portion. Such a step portion is formed by stopping the punch by moving the inside of the post portion to the base end side while slightly increasing the inner diameter of the post portion when processing the button mounting member from the intermediate member described later. It can be formed at the boundary between the portion expanded on the base end side and the portion remaining without expanding.

  In one embodiment of the present invention, the closing member is formed by punching a closing portion that closes a protruding end surface of a half post portion of an intermediate member that is processed into a button mounting member. In this case, an intermediate member is formed from a single metal plate, a closing portion for closing the protruding end surface of the half post portion of the intermediate member is punched, and the punched closing portion is used as a closing member for the button mounting member. By processing the portion into the post portion of the button mounting member, no material other than the metal plate is required for the closing member.

  In the present invention, the closing member can be formed in a circular shape, a polygonal shape, a star shape, a petal shape, or the like, for example.

  In an embodiment of the present invention, a portion of the post portion corresponding to the closing member is recessed radially inward from a plurality of locations in the circumferential direction. As a result, the fixing strength of the closing member can be increased, and by providing four recesses in the post part at intervals of, for example, 90 degrees in the circumferential direction, the shape of the closing member is made substantially cross-shaped, and the lower end from the back side of the button mounting member. The aesthetics seen through the opening can be improved.

  According to another aspect of the present invention, a metal button attachment member used when attaching a button to a cloth is provided with a plate-like base portion and a cylindrical post portion protruding from the center of the base portion. The protruding end surface of the post portion is opened as an upper end opening, the base end surface of the post portion is opened as a lower end opening in the center of the base portion, and a button mounting member having a closing member for closing the proximal end side inside the post portion is formed. An intermediate member having a plate-like base portion and a cylindrical half post portion projecting from the center of the base portion, and having a closing portion for closing the projecting end surface of the half post portion; A step of preparing an intermediate member in which a base end surface of the post portion is opened as a lower end opening at the center of the base portion, a step of punching a closed portion of the half post portion of the intermediate member with a punch, and the punched closing portion. Button mounting member forming method comprising the closure movement step of moving to the base end side of the inner half-post portion and said closure member is provided by a wrench.

  In the present invention, in forming the above-described button mounting member, an intermediate member in which the protruding end surface of the half post portion is closed by the closing portion is formed from a single metal plate, and then the closing portion of the intermediate member is punched out by punching. The punched closing portion can be moved to the base end side in the half post portion with a punch to form a closing member. Note that the half post portion of the intermediate member is processed into the post portion of the button mounting member as the closing portion is punched and moved by the punch.

  In the present invention, in the closing portion moving step, the punch can move the closing portion while slightly increasing the inner diameter of the half post portion. In this case, the punch moves to the proximal end side in the half post portion while slightly increasing the inner diameter of the half post portion and stops, thereby increasing the diameter of the half post portion on the proximal end side and the enlarged diameter. A stepped portion is formed at the boundary between the remaining portion and the closing portion can be fixed on the stepped portion as a closing member.

  According to another aspect of the present invention, a metal eyelet member that is attached to the cloth and used as an eyelet is provided with a plate-like base portion and a cylindrical portion protruding from the center of the base portion, and the protruding end surface of the cylindrical portion has an upper end. An eyelet member that opens as an opening and that has a base end surface of the cylindrical portion that opens as a lower end opening at the center of the base portion is provided. The eyelet member has a closing member that closes the base end side inside the cylindrical portion.

  In the present invention, the eyelet member can be formed in an advantageous manner in terms of cost by punching the protruding end surface of the cylindrical portion to form a closing member.

  In one embodiment of the present invention, the closing member is fixed in the cylindrical portion by the pressure contact between the outer peripheral surface of the closing member and the inner peripheral surface of the cylindrical portion. In this case, by making the outer diameter of the closing member slightly larger than the inner diameter of the base end side of the cylindrical portion and pushing the closing member into the base end side in the cylindrical portion, the outer peripheral surface of the closing member and the inner peripheral surface of the cylindrical portion Are brought into pressure contact and the friction member fixes the closing member.

  In one embodiment of the present invention, the cylindrical portion has a step portion whose inner diameter is reduced stepwise on the proximal end side of the inner peripheral surface, and the closing member is fixed on the step portion. In this case, the closing member is caught by the stepped portion and cannot move to the lower end opening side of the cylindrical portion. Such a stepped portion is formed by stopping the inner peripheral surface of the cylindrical portion when the punch moves from the intermediate member, which will be described later, to the proximal end side while the inner diameter of the cylindrical portion is slightly enlarged. It can be formed at the boundary between the portion expanded on the base end side and the portion remaining without being expanded.

  In one embodiment of the present invention, the closing member is formed by punching a closing portion that closes the protruding end surface of the semi-cylindrical portion of the intermediate member that is processed into the eyelet member. In this case, an intermediate member is formed from a single metal plate, a closing portion that closes the protruding end surface of the semi-cylindrical portion of the intermediate member is punched, and the punched closing portion is used as a closing member for the eyelet member, and the semi-cylindrical portion Is processed into the cylindrical portion of the eyelet member, so that no material other than the metal plate is required for the closing member.

  In one embodiment of the invention, the closure member has a plurality of holes. Air, water, etc. can enter and exit through such holes.

  According to another aspect of the present invention, a metal eyelet member that is attached to the cloth and used as an eyelet is provided with a plate-like base portion and a cylindrical portion protruding from the center of the base portion, and the protruding end surface of the cylindrical portion has an upper end. A method of forming a grommet member having an opening as an opening, a base end surface of the cylindrical portion being opened as a lower end opening in the center of the base portion, and a closing member closing the base end side inside the cylindrical portion, An intermediate member having a plate-like base portion and a semi-cylindrical portion projecting from the center of the base portion, has a closing portion that closes the projecting end surface of the semi-cylindrical portion, and the base end surface of the semi-cylindrical portion is the base portion A step of preparing an intermediate member that opens as a lower end opening in the center; a step of punching out a closed portion of the semi-cylindrical portion of the intermediate member; and a proximal end inside the semi-cylindrical portion by punching the punched-out closed portion Move to the side Eyelet forming method including a closure movement step of said closure member.

  In the present invention, in forming the above-described eyelet member, an intermediate member in which the projecting end surface of the semi-cylindrical portion is closed by a closing portion is formed from a single metal plate, and then the closing portion of the intermediate member is punched by a punch, The punched closing part can be moved to the base end side in the semi-cylindrical part with a punch to form a closing member. Note that the semi-cylindrical portion of the intermediate member is processed into the post portion of the eyelet member as the closing portion is punched and moved by the punch.

  In the present invention, in the closing portion moving step, the punch can move the closing portion while slightly increasing the inner diameter of the semi-cylindrical portion. In this case, the punch moves to the proximal end side in the semi-cylindrical portion while slightly expanding the inner diameter of the semi-cylindrical portion, and stops, thereby increasing the diameter of the portion on the proximal end side of the inner peripheral surface of the semi-cylindrical portion. A stepped portion is formed at the boundary between the remaining portion and the closing portion can be fixed on the stepped portion as a closing member.

  In the button mounting member and the button mounting member forming method according to the present invention, the closure member is provided on the base end side in the cylindrical post portion having the upper end opening and the lower end opening, so that the button is separated from the fabric when the button is attached to the fabric. In addition, since the dough scraps that can remain in the post portion without being completely separated or the protruding end side portion of the post portion that has been deformed from the button cannot be seen from the back side of the button mounting member through the lower end opening, the aesthetics are improved. Moreover, the dough waste removal operation | work which discharges dough waste from the lower end opening of a button attachment member outside is unnecessary. Furthermore, the button mounting member including the closing member can be efficiently and advantageously formed from a single metal plate.

  In the eyelet member and the eyelet member forming method according to the present invention, by providing the closing member on the base end side in the cylindrical portion having the upper end opening and the lower end opening, the eyelet member including the closing member can be efficiently manufactured from a single metal plate. Can be advantageously formed.

FIG. 1 is a perspective view illustrating a button attachment member according to an embodiment of the present invention, with a partial cross section. FIG. 2 is a longitudinal sectional view of the button mounting member of FIG. FIG. 3 is a longitudinal cross-sectional explanatory view showing the arrangement state in the vertical direction of the punch used when finishing the button mounting member and the intermediate member serving as the button mounting member. FIG. 4 is a longitudinal cross-sectional explanatory view showing a completed state of the finishing process from the intermediate member to the button mounting member. FIG. 5 is a longitudinal cross-sectional explanatory view showing a state in which the male snap button is attached to the cloth using the button attachment member of FIG. 1 and the like. FIG. 6 is a longitudinal cross-sectional explanatory view showing a state in which the decorative button is attached to the fabric using the button attaching member of FIG. 1 and the like. FIG. 7 is a cutaway perspective view of the upper half of the post portion for convenience showing another example of the shape of punching the upper end surface of the intermediate member. FIG. 8 is a partial bottom view of the button mounting member obtained from the intermediate member of FIG. 7 as viewed from below. FIG. 9 is a longitudinal sectional view showing an example of further processing the button attachment member. 10 is a cross-sectional view taken along line AA in FIG. FIG. 11 is a perspective explanatory view showing a partially broken eyelet member according to another embodiment of the present invention. 12 is a longitudinal sectional view of the eyelet member of FIG. FIG. 13 is a longitudinal cross-sectional explanatory view showing an arrangement state of a punch used when finishing the eyelet member and an intermediate member serving as the eyelet member. FIG. 14 is an explanatory longitudinal cross-sectional view showing a state in which the eyelet member is finished by punching. It is longitudinal cross-sectional explanatory drawing which shows the state which attached the eyelet member of FIG.

  Preferred embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view illustrating a button mounting member 10 according to an embodiment of the present invention with a part broken away, and FIG. 2 is a longitudinal sectional view of the button mounting member 10. The button mounting member 10 is formed by drawing a copper alloy plate material to form an intermediate member 10 ′ (see FIG. 3), and then finishing processing as will be described later. A cylindrical post portion 12 projecting concentrically with the base portion 11 is provided above the base portion 11 (the vertical direction of the button mounting member is based on FIG. 2). The post portion 12 has an upper end surface opened as an upper end opening 13 and a lower end surface opened as a lower end opening 14 in the center of the base portion 11. Further, the post portion 12 gradually increases in thickness upward, the upper end portion 12a is expanded so as to open radially outward, and the tip (upper end) 12c is sharp. Except for the upper end portion 12a, the outer diameter of the post portion 12 is substantially constant, and the inner diameter gradually increases upward from a step portion 15 described later. A disc-shaped closing member 20 is provided on the lower end side inside the post portion 12. The closing member 20 will be described later in detail. When the male snap button 40 (see FIG. 5) or the decorative button 50 (see FIG. 6) is attached to the fabrics 1 and 2 using the button mounting member 10, the closing member 20 is removed from the fabrics 1 and 2. Even if the separated dough 1 ′, 2 ′ stays inside the post portion 12, the dough trash 1 ′, 2 ′ is made invisible from the lower end opening 14. On the lower end side of the inner peripheral surface of the post portion 12, a step portion 15 whose inner diameter is reduced stepwise is formed, and the closing member 20 is disposed on the step portion 15. Since the inner diameter of the step portion 15 is slightly smaller than the outer diameter of the closing member 20, the closing member 20 is caught by the step portion 15 and prevented from moving downward. Further, the outer peripheral surface of the closing member 20 is in pressure contact with the inner peripheral surface of the post portion 12, and the closing member 20 cannot be displaced upward in the post portion 12 by this frictional force.

  FIG. 3 shows a vertical arrangement state of an intermediate member (semi-finished product) 10 ′ to be the button mounting member 10 and a steel punch 30 used for processing the intermediate member 10 ′ into the button mounting member 10. The punch 30 is placed concentrically above the intermediate member 10 '. The intermediate member 10 ′ is formed by drawing a metal plate, and has a base portion 11 (substantially the same as the button mounting member 10 and given the same reference number) and a half post portion 12 ′ protruding from the center of the base portion 11. With. The upper end surface of the half post portion 12 'is closed by a disc-like closing portion 20'. The half post portion 12 'does not have an upper end portion that expands radially outward like the upper end portion 12a of the post portion 12 of the button mounting member 10, and the outer diameter is slightly reduced linearly upward. The inner diameter is almost constant. Therefore, the inner and outer diameters of the half post portion 12 ′ are slightly reduced upward compared to the post portion 12.

  The punch 30 includes a punch base 31 that is shown in a broken state and is connected to a lifting / lowering portion of a press machine (not shown), and protrudes downward from the punch base 31 with its outer diameter reduced, and within the half post portion 12 ′ of the intermediate member 10 ′. And a substantially cylindrical insert portion 32 to be pushed into the housing. The insert portion 32 includes an insert base end portion 32a that defines a curved surface 32a ′ by reducing the outer diameter in a curved shape downward from the punch base portion 31 (the vertical direction of the punch is based on FIG. 3), and the insert base end portion. And an insert body 32b whose outer diameter slightly decreases linearly downward from 32a. The diameter of the lower end surface 32c of the insert portion 32 is slightly larger than the inner diameter of the half post portion 12 ', and the axial length of the insert portion 32 is slightly shorter than the axial length of the half post portion 12'.

  Next, the process of obtaining the button mounting member 10 from the intermediate member 10 'will be described as an embodiment of the button mounting member forming method according to the present invention. In finishing the intermediate member 10 ′ into the button mounting member 10, when the punch 30 is lowered from the state of FIG. 3, the punch 30 closes the upper end surface of the half post portion 12 ′ of the intermediate member 10 ′. 20 ′ is punched into a circular shape, and then the insert portion 32 of the punch 30 moves downward in the half post portion 12 ′, and the punched closing portion 20 ′ is pushed down by the lower end surface 32c of the insert portion 32. FIG. When the lowering of the punch 30 is stopped in the state shown in FIG. 5, the processing from the intermediate member 10 ′ to the button mounting member 10 is completed. For convenience of explanation, the post portion 12 and the closing member 20 of the button mounting member 10 in FIG. 4 are also referred to as the half post portion 12 ′ and the closing portion 20 ′ of the intermediate member 10 ′. During the lowering of the insert portion 32 in the half post portion 12 ′, the insert body 32b and the punched closure portion 20 ′ are deformed so that the inner diameter of the half post portion 12 ′ is slightly expanded radially outward, The inner diameter of the half post portion 12 ′ below the position near the lower end in the half post portion 12 ′ where 20 ′ is stationary as the closing member 20 of the button mounting member 10 remains unchanged. Therefore, a step portion 15 that is reduced in a step shape downward is formed on the inner diameter portion of the half post portion 12 ′ corresponding to the stationary position of the closing portion 20 ′, and the outer peripheral surface of the closing member 20 is formed on the step portion 15. The closing member 20 is fixed by this frictional force in pressure contact with the inner peripheral surface of the half post portion 12 ′. Further, at the final stage of lowering of the punch 30, the curved surface 32a 'of the insert base end portion 32a extends the upper end portion of the half post portion 12' radially outward to form the upper end portion 12a of the post portion 12. As described above, since the intermediate member 10 ′ formed from a single metal plate can be finished into the button mounting member 10 including the closing member 20, another material for the closing member 20 is used. There is no material efficiency.

  FIG. 5 is a longitudinal cross-sectional explanatory view showing a state in which a male snap button (hereinafter also simply referred to as “male snap”) 40 is attached to the fabric 1 by the button attachment member 10. The male snap 40 includes a flange portion 41 and a convex portion 42 projecting upward at the center of the flange portion 41 and having a protruding end 42 attached to and detached from a concave portion of a female snap button (not shown). A post locking portion 43 for receiving and deforming and locking the post portion 12 of the mounting member 10 is defined. When the male snap 40 is attached to the fabric 1 using the button attachment member 10, the post portion 12 of the button attachment member 10 enters the post locking portion 43 after punching out the fabric 1. The circular dough 1 'is separated from the dough 1 by punching. When the post portion 12 is deformed in the post locking portion 43, the fabric waste 1 ′ can remain in the post portion 12 by being caught on the protruding side portion of the post portion 12 (the fabric waste not separated from the fabric 1). May remain in the post portion 12). In FIG. 5 (and FIG. 6), the dough waste 1 ′ is shown in a state of being taken into the post portion 12 from the upper end opening 13 for convenience. Such dough waste 1 ′ remaining in the post portion 12 or the projecting side portion of the deformed post portion 12 cannot be seen from the lower end opening 14 by the closing member 20 in the vicinity of the lower end in the post portion 12.

  FIG. 6 is a longitudinal cross-sectional explanatory view showing a state in which the decorative button 50 is attached to the fabric 2 by the button attaching member 10. The decorative button 50 includes a flange portion 51 and a convex portion 52 whose upper end protrudes upward at the center of the flange portion 51, and the post portion 12 of the button mounting member 10 is received inside the convex portion 52 to be deformed. A post locking portion 53 for locking in this manner is defined. When the decorative button 50 is attached to the fabric 2 using the button attachment member 10, the post portion 12 of the button attachment member 10 enters the post locking portion 53 after punching out the fabric 2. The circular dough 2 'is separated from the dough 2 by punching. When the post portion 12 is deformed in the post locking portion 53, the fabric waste 2 'can stay in the post portion 12 (the fabric waste that cannot be separated from the fabric 2 may remain in the post portion 12). Thus, the dough waste 2 ′ remaining in the post portion 12 or the projecting end side portion of the deformed post portion 12 cannot be seen from the lower end opening 14 by the closing member 20 near the lower end in the post portion 12.

  In the above embodiment, an example has been given in which the upper end surface of the intermediate member 10 ′, that is, the closing portion 20 ′ is punched into a circular shape by the punch 30 so that the closing member 20 of the button mounting member 10 has a circular shape. Not limited to this, the upper end surface of the intermediate member can be punched in a shape other than a circle, and the closing member of the button mounting member can be formed in a shape other than a circle. For example, FIG. 7 shows a state in which the upper end surface of the half post portion 62 ′ of the intermediate member 60 ′, that is, the closed portion (70 ′) is punched into a petal shape in which five semi-oval petal pieces are radial. For convenience of explanation, the intermediate member 60 ′ in FIG. 7 represents only punching by punching, and the diameter expansion processing of the half post portion 62 ′ by the punch portion and the expansion processing of the upper end portion of the half post portion 62 ′ are not performed. Not represented. Moreover, although not shown in figure as a punch, what provided the petal-shaped convex part in the lower end part of the insert part 32 of the punch 30 is used. FIG. 8 is a partial bottom view of the state in which the punched petal-shaped closing part 70 ′ is fixed as the closing member 70 of the button mounting member 60 near the lower end in the post part 62 as viewed from below. When the male snap 40 and the decorative button 50 are attached to the fabrics 1 and 2 using the button attachment member 60, the petal-shaped closing member 70 can be seen from the back side of the fabrics 1 and 2 through the lower end opening 64, thereby improving the beauty. .

  In FIG. 9, after the intermediate member 10 ′ is processed into the button mounting member 10 by the punch 30, a portion corresponding to the closing member 20 of the post portion 12 of the button mounting member 10 is further set as an example at intervals of 90 degrees in the circumferential direction. The state which was plastically deformed so as to be depressed by pressing inward in the radial direction with a pressing member (not shown) from a location is shown. The post part 12 and the closing member 20 after deformation are represented by reference numerals 12 "and 20", respectively. 10 is a cross-sectional view taken along line AA in FIG. By such additional processing, the vicinity of the lower end of the post portion 12 is reduced in diameter to increase the fixing strength of the closing member 20 ″, and the closing member 20 is deformed into a substantially cross shape. In this example, the closing member 20 is deformed into a substantially cross shape, but the present invention is not limited to this, and other shapes may be formed by increasing or decreasing the number of pressing portions in the circumferential direction of the post portion 12. it can.

  FIG. 11 is a perspective explanatory view showing a partially broken eyelet member 80 according to another embodiment of the present invention. The eyelet member 80 is attached to the fabric 3 (see FIG. 15) to allow ventilation and ventilation. It constitutes an opening for water or the like. FIG. 12 is a longitudinal sectional view of the eyelet member 80. The eyelet member 80 is formed by drawing a copper alloy plate material to form an intermediate member 80 ′ (see FIG. 13) and then finishing it as will be described later. A base portion 81 and a cylindrical portion 82 projecting concentrically are provided above the portion 81 (the vertical direction of the eyelet member is based on FIG. 14). The cylindrical portion 12 has an upper end surface that opens as an upper end opening 83, and a lower end surface that opens as a lower end opening 84 in the center of the base portion 81. Further, the cylindrical portion 82 gradually decreases in thickness upward, the outer diameter of the cylindrical portion 82 is substantially constant, and the inner diameter gradually increases upward from a stepped portion 85 described later. A disc-shaped closing member 90 is provided on the lower end side inside the cylindrical portion 82, and the closing member 90 has, for example, seven circular holes 91 for ventilation and water passage. On the lower end side of the inner peripheral surface of the cylindrical portion 82, a step portion 85 whose inner diameter is reduced stepwise is formed, and the closing member 90 is disposed on the step portion 85. Since the inner diameter of the step portion 85 is slightly smaller than the outer diameter of the closing member 90, the closing member 90 is caught by the step portion 85 and prevented from moving downward. Further, the outer peripheral surface of the closing member 90 is in pressure contact with the inner peripheral surface of the cylindrical portion 82, and the closing member 90 cannot be displaced upward in the cylindrical portion 82 by this frictional force.

  FIG. 13 shows an arrangement state in the vertical direction between an intermediate member (semi-finished product) 80 ′ to be the eyelet member 80 and a steel punch 100 used for processing the intermediate member 80 ′ into the eyelet member 80. Is placed concentrically above the intermediate member 80 '. The intermediate member 80 ′ is formed by drawing a metal plate, and includes a base portion 81 (which is substantially the same as the eyelet member 80 and is given the same reference number), and a semi-cylindrical portion 82 ′ protruding from the center of the base portion 81. Is provided. The upper end surface of the semi-cylindrical portion 82 'is closed by a disc-like closing portion 90'. Before the finishing by the punch 100, seven circular holes 91 (which are substantially the same as the holes 91 of the closing member 90 and are given the same reference numerals) are formed in the closing portion 90 '. The semi-cylindrical portion 82 'has an outer diameter slightly reduced linearly upward, and an inner diameter is substantially constant. Therefore, the inner and outer diameters of the semi-cylindrical portion 82 ′ are slightly reduced upward compared to the cylindrical portion 82.

  The punch 100 includes a punch base 101 that is broken and connected to a lifting / lowering portion of a press machine (not shown), and protrudes downward from the punch base 101 with its outer diameter reduced, and is inside the semi-cylindrical portion 82 ′ of the intermediate member 80 ′. And a substantially cylindrical insert portion 102 to be pushed into the housing. The insert portion 102 has an outer diameter slightly reduced linearly downward from the punch base 101, a diameter of the lower end surface 102 ′ is slightly larger than an inner diameter of the semi-cylindrical portion 82 ′, and an axial length thereof is small. It is slightly shorter than the axial length of the semi-cylindrical portion 82 '.

  Next, as an embodiment of the eyelet member forming method according to the present invention, a process of obtaining the eyelet member 80 from the intermediate member 80 'will be described. In finishing the intermediate member 80 ′ into the eyelet member 80, when the punch 100 is lowered from the state of FIG. 13, the punch 100 closes the upper end surface of the semi-cylindrical portion 82 ′ of the intermediate member 80 ′. Then, the insert portion 102 of the punch 100 moves downward in the semi-cylindrical portion 82 ', and the punched closing portion 90' is pushed down by the lower end surface 102 'of the insert portion 102. FIG. As shown in FIG. 4, the punch base 101 comes into contact with the upper end of the semi-cylindrical portion 82 ′ and the lowering of the punch 100 stops, whereby the processing from the intermediate member 80 ′ to the eyelet member 80 is completed. For convenience of explanation, the cylindrical portion 82 and the closing member 90 of the eyelet member 80 in FIG. 14 are also referred to as a semi-cylindrical portion 82 'and a closing portion 90' of the intermediate member 80 '. During the lowering of the insert portion 102 in the cylindrical portion 12 ′, the insert portion 102 and the punched closing portion 90 ′ are deformed so that the inner diameter of the semi-cylindrical portion 82 ′ is slightly expanded radially outward, and the closing portion 90 The inner diameter of the semi-cylindrical portion 82 ′ below the position near the lower end in the semi-cylindrical portion 82 ′ that is stationary as the closing member 90 of the eyelet member 80 remains undeformed. For this reason, a stepped portion 85 that is reduced in a stepped shape downward is formed on the inner diameter portion of the semi-cylindrical portion 82 ′ corresponding to the stationary position of the closed portion 90 ′. The closing member 90 is fixed by this frictional force in pressure contact with the inner peripheral surface of the semi-cylindrical portion 82 '. As described above, the intermediate member 80 ′ formed from a single metal plate can be finished into the eyelet member 80 including the closing member 90, so that another material for the closing member 90 is not used. Good material efficiency.

  FIG. 15 is a longitudinal cross-sectional explanatory view showing a state in which the eyelet member 80 is attached to the fabric 3, and reference numeral 110 is an annular washer arranged on the front side (upper surface side) of the fabric 3. When attaching the eyelet member 80 to the fabric 3, the cylindrical portion 82 of the eyelet member 80 is punched out of the fabric 3, and then curved in a longitudinal cross-section C shape outwardly in the radial direction by an upper mold (not shown). To be accepted.

1, 2, 3 Dough 1 ', 2' Dough waste 10 Button mounting 10 ', 60' Intermediate member 11 Base part 12, 12 ", 62 Post part 12 ', 62' Half post part 13 Upper end opening 14, 64 Lower end opening 15 Steps 20, 20 ″, 70 Closing member 20 ′, 70 ′ Closing part 30, 100 Punch 40 Male snap button 50 Decoration button 80 Eyelet member 80 ′ Intermediate member 81 Base part 82 Cylindrical part 82 ′ Semi-cylindrical part 83 Upper end opening 84 Lower end opening 85 Step part 90 Closing member 90 'Closing part 91 Hole

Claims (6)

Metal button attachment members (10, 60) used when attaching the buttons (40, 50) to the fabric (1, 2) are used to form a plate-like base portion (11, 61) and a base portion (11, 61). ) And a cylindrical post portion (12, 62) projecting from the center of the post portion (12, 62), the projecting end surface of the post portion (12, 62) is opened as an upper end opening (13), and the base of the post portion (12, 62) In the button mounting member (10, 60) whose end face opens as the lower end opening (14, 64) in the center of the base portion (11, 61),
A closing member (20, 70) for closing a proximal end side of the inside of the post portion (12, 62);
The closing member (20, 70) closes the projecting end surface of the half post portion (12 ', 62') of the intermediate member (10 ', 60') to be processed into the button mounting member (10, 60). A button mounting member obtained by punching (20 ′, 70 ′). Metal button attachment members (10, 60) used when attaching the buttons (40, 50) to the fabric (1, 2) are used to form a plate-like base portion (11, 61) and a base portion (11, 61). ) And a cylindrical post portion (12, 62) projecting from the center of the post portion (12, 62), the projecting end surface of the post portion (12, 62) is opened as an upper end opening (13), and the base of the post portion (12, 62) The end surface has a closing member (20, 70) that opens as a lower end opening (14, 64) at the center of the base portion (11, 61) and closes the proximal end side inside the post portion (12, 62). A method for forming a button mounting member (10, 60), comprising:
An intermediate member (10 ′, 60 ′) having a plate-like base portion (11, 61) and a cylindrical half post portion (12 ′, 62 ′) protruding from the center of the base portion (11, 61). And a closing portion (20 ′, 70 ′) for closing the protruding end surface of the half post portion (12 ′, 62 ′), and the base end surface of the half post portion (12 ′, 62 ′) is the base portion (11, 61) preparing an intermediate member (10 ′, 60 ′) that opens as a lower end opening (14, 64) in the center of
Punching out the closing portions (20 ′, 70 ′) of the half post portions (12 ′, 62 ′) of the intermediate member (10 ′, 60 ′) with a punch (30);
The closed part (20 ', 70') is moved to the proximal end side inside the half post part (12 ', 62') by the punch (30) to form the closing member (20, 70). A button attachment member forming method including a moving step.   3. The button mounting member according to claim 2, wherein in the closing part moving step, the punch (30) moves the closing part (20 ', 70') while slightly increasing the inner diameter of the half post part (12 ', 62'). Forming method. A metal eyelet member (80) that is attached to the fabric (3) to form an eyelet, and includes a plate-like base part (81) and a cylindrical part (82) protruding from the center of the base part (81), In the eyelet member (80) in which the projecting end surface of the cylindrical portion (82) opens as an upper end opening (83), and the base end surface of the cylindrical portion (82) opens as a lower end opening (84) in the center of the base portion (81). ,
A closing member (90) for closing the proximal side of the inside of the cylindrical portion (82);
The closing member (90) is formed by punching a closing portion (90 ') that closes the protruding end surface of the semi-cylindrical portion (82') of the intermediate member (80 ') to be processed into the eyelet member (80). Element. A metal eyelet member (80) that is attached to the fabric (3) to form an eyelet, and includes a plate-like base part (81) and a cylindrical part (82) protruding from the center of the base part (81), The protruding end surface of the cylindrical portion (82) opens as an upper end opening (83), and the proximal end surface of the cylindrical portion (82) opens as a lower end opening (84) in the center of the base portion (81), and the cylindrical portion A method of forming a grommet member having a closure member (90) that closes the proximal side of the interior of (82),
An intermediate member (80 ′) having a plate-like base portion (81) and a semi-cylindrical portion (82 ′) protruding from the center of the base portion (81) is used, and the protruding end surface of the semi-cylindrical portion (82 ′) is formed. Providing an intermediate member (80 ′) having a closing portion (90 ′) to be closed and having a base end surface of the semi-cylindrical portion (82 ′) opened as a lower end opening (84) in the center of the base portion (81); ,
Punching out the closed portion (90 ′) of the semi-cylindrical portion (82 ′) of the intermediate member (80 ′) with a punch (100);
A closing member moving step including a closing portion moving step of moving the punched closing portion (90 ') to the proximal end side inside the semi-cylindrical portion (82') by the punch (100) to form the closing member (90) Method.   6. The eyelet member forming method according to claim 5, wherein, in the closing part moving step, the punch (100) moves the closing part (90 ') while slightly increasing the inner diameter of the semi-cylindrical part (82').

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