CA2081059C - Ornamental button body with clasp and method for manufacturing the same - Google Patents
Ornamental button body with clasp and method for manufacturing the sameInfo
- Publication number
- CA2081059C CA2081059C CA002081059A CA2081059A CA2081059C CA 2081059 C CA2081059 C CA 2081059C CA 002081059 A CA002081059 A CA 002081059A CA 2081059 A CA2081059 A CA 2081059A CA 2081059 C CA2081059 C CA 2081059C
- Authority
- CA
- Canada
- Prior art keywords
- recess
- button body
- flange
- ornamental button
- mouth
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
Classifications
-
- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B17/00—Press-button or snap fasteners
-
- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B1/00—Buttons
- A44B1/04—Ornamental buttons
-
- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B17/00—Press-button or snap fasteners
- A44B17/0064—Details
- A44B17/0082—Decoration
Abstract
In assembling an ornamental button body assemb-ly, a tubular clasp having a flange 4 is inserted into a recess formed in the rear surface of an ornamental button body, the flange having a diameter substantial-ly equal to the mouth diameter of the recess. Then an annular spring is inserted between the inside wall of the recess and the flange while being compressed, whereupon the annular spring is restored to expand in the recess to secure the tubular clasp 5 to the ornamental button body.
Description
20810~9 ORN~M~NTAL BUTTON BODY WITH CLASP AND
METHOD FOR MANUFACTURING THE SAME
BACKGROUND OF THE INVENTION
1. Field of the Invention:
This invention relates to an ornamental button, such as a male-female button to be used on a garment or a tack button to be used on a garment of denim, and more particularly to an ornamental button body assemb-ly and a method for manufacturing the same.
METHOD FOR MANUFACTURING THE SAME
BACKGROUND OF THE INVENTION
1. Field of the Invention:
This invention relates to an ornamental button, such as a male-female button to be used on a garment or a tack button to be used on a garment of denim, and more particularly to an ornamental button body assemb-ly and a method for manufacturing the same.
2. Description of the Related Art:
An ornamental button body assembly is currently known (from Japanese Patent Publication No. HEI 1-37122) which comprises an ornamental button body made of hard plastics and having in its rear surface a recess with a groove extending along the deepest por-tion of its peripheral wall, and a metallic clasp in the form of a tube having at its base a ridged flange adapted to be deformed to expand outwardly; in assem-bling, the flange is inserted into the recess and is then compressed and expanded by a tool so as to be fitted in the groove.
Another known type ornamental button body as-sembly (Japanese Utility Model Laid-Open Publication No. HEI 2-130214) comprises an ornamental button body having in its rear surface a recess having a -1- ~
20810~9 -frustoconical peripheral wall increasing in diameter progressively from the bottom to the mouth, and a clasp having a flange larger in diameter than that of the mouth of the recess; in assembling, the clasp is forcibly pressed against the ornamental button body to bend the peripheral portion of the flange in such a manner that the flange is inserted into the recess un-til it comes in contact with the peripheral wall of the recess.
Regarding the first-named prior art, in the ornamental button body assembly made of hard plastics, bone or ivory, since when the ridged flange of the metallic tubular clasp is inserted into the recess and is then compressed and expanded by a tool so as to be fitted into the groove extending along the deepest portion of the peripheral wall of the groove, the mouth edge of the groove would be damaged or expanded to receive the flange loosely, thus causing the ornamental button body to pivotally move with respect to the clasp. Furthermore, since a tool is used to forcibly press the ridged flange against the ornamen-tal button body, the pressing force is directly trans-ferred to the ornamental button body placed on a hold-ing die, thus causing the front surface of the ornamental button body to be damaged.
In the second-named prior art, since the clasp -having a flange larger in diameter than the mouth of the recess formed in the rear surface of the ornamen-tal button body is forcibly pressed against the ornamental button body by a tool to bend the peripheral portion of the flange in such a manner that the flange is fitted in the recess, the mouth edge of the recess would be damaged to receive the flange loosely, the pressing force is directly transferred to the ornamental button body placed on a holding die, thus causing the front surface of the ornamental but-ton body to be damaged.
SUMMARY OF THE INVENTION
It is therefore an object of this invention to provide an ornamental button body assembly in which a tubular clasp can be attached to the rear surface of an ornamental button body easily in a very simple con-struction without giving any damage not only to the clasp but also the front surface of the ornamental button body. Another object of the invention is to provide a method of manufacturing such an ornamental button body assembly.
According to a first aspect of the invention, there is provided an ornamental button body assembly comprising: an ornamental button body having in its rear surface a recess with a bottom larger in diameter than a mouth; a tubular clasp having at one end a flange substantially equal in diameter to a mouth edge of the 20~iO~9 recess, the flange being received in the recess; and an annular spring disposed between the flange and an mouth-side inside wall of the recess.
The recess may have an inverted frustoconical contour, the flange of the clasp being bent along an outer peripheral edge so as to form a complement to the sloping inside wall of the frustoconical recess.
According to a second aspect of the invention, there is provided a method of manufacturing an ornamental button body assembly, comprising the steps of: inserting a flange of a tubular clasp into a recess formed in a rear surface of an ornamental but-ton body with a bottom larger in diameter than a mouth, the flange being substantailly equal in diameter to a mouth edge of the recess; forcibly inserting an annular spring between a surface of the flange and a mouth-side inside wall of the recess while compressing the annular spring; and then restoring the compressed annular spring.
In assembling the ornamental button body assemb-ly of this invention, a tubular clasp having at one end a flange is placed in the recess formed in the rear surface of the ornamental button body, with an annular spring sandwiched between the inside wall of the recess and the front surface of the flange, so that the tubular clasp is attached to the ornamental button body stably, thus making the ornamental button 20~1059 body assembly durable in any use.
When this ornamental button body assembly is used in an ornamental button such as a female button, a male button or a tack button, the tubular portion projecting from the rear surface of the ornamental button body is pierced through, for example, a piece of cloth and then the distal end of the tubular por-tion is clenched against a female body, or the clasp having a U-shape tubular portion is placed on one sur-face of a piece of cloth and then the tack is pieced through the cloth from the other surface so as to be secured to the tubular clasp.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a cross-sectional view of a female button;
FIG. 2 is an exploded perspective view of an ornamental button body assembly;
FIG. 3 is a cross-sectional view of an ornamen-tal button body assembly according to one embodiment of this invention;
FIG. 4 is a cross-sectional view of a modified ornamental button body assembly according to another embodiment;
FIG. 5 is a cross-sectional view of another modified ornamental button body assembly according to still another embodiment;
20810~9 FIG. 6 is a cross-sectional view of a modified tubular clasp; and FIG. 7 is a cross-sectional view of an apparatus for manufacturing an ornamental button body assembly.
DETAILED DESCRIPTION
Several embodiments of an ornamental button body assembly according to this invention will now be de-scribed in detail with reference to the accompanying drawings.
As shown in FIGS. 1 and 2, an ornamental button body assembly according to a first embodiment of the invention includes an ornamental button body 1 for an ornamental button, such as a female-male button or a tack button, formed of hard plastics, bone, ivory or metal. The ornamental button body 1 has a recess 2 which is formed centrally in a rear surface of the ornamental button body 1 and which has a frustoconical inside wall 3 increasing in diameter progressively from the mouth to the bottomin such a manner that the area of the bottom of the recess 2 is slightly larger than that of the mouth. The ornamental button body as-sembly also includes a tubular clasp 5 having at one end a flange 4 which is substantially equal in diameter to a mouth edge 10 of the recess 2 and which is inserted in the recess 2. An annular spring 6 having a circular cross section and a cutout is inserted between _ the flange 4 and the mouth-side inside wall 3 of the recess 2. The annular spring 6 serves to hold the flange 4 of the tubular clasp 5 stably in the recess 2, preventing the flange 4 from being removed from the recess 2.
The annular spring 6 used in this embodiment should by no means be limited to a cutout-ring spring and may be a disk spring or a rubber spring, if it is a resilient member shrinkable and extendible radially within a constant circle. The tubular clasp 5 may be a clasp having a tubular portion whose distal end is folded into a U shape, as shown in FIG. 6. In FIG. 1, reference numeral 7 designates a female button body;
and 8, a piece of cloth through which the tubular por-tion of the clasp 5 attached to the rear surface of the ornamental button body 1 is pierced, whereupon the distal end of the tubular portion is clenched against the tubular portion of the female button body 7 to thereby attach the female button body 7 to the cloth 8.
According to a second embodiment, as shown in FIG. 3, the shape of a recess 2 formed centrally in the rear surface of an ornamental button body 1 is to-tally identical with that of the first embodiment. The shape of an outer peripheral edge 9 of a flange 4 of a tubular clasp 5 is different from that of the previous embodiment, being bent so as to complement to the 2081~59 slant inside wall 3 of the inverted frustoconical recess 2. A cutout annular spring 6 is inserted be-tween the bent outer peripheral edge 9 of the flange 4 and the mouth-side inside wall 3 of the recess 2.
With this arrangement, when a force is exerted on the button so as to remove the tubular clasp 5 from the recess 2 of the ornamental button body l, the an-nular spring 6 will shrink so as to move along the slant inside wall 3 of the recess 2 or will expand to move along the bent outer peripheral edge 9 of the flange 4, thus keeping a balanced condition so that the flange 4 will hardly be removed from the recess 2.
In a third embodiment shown in FIG. 4, a recess 2 formed in the rear surface of an ornamental button body l is similar to that of the previous embodiment except that the mouth edge lO'of the recess is rounded to facilitate insertion of an annular spring 6. The annular spring 6 has a generally triangular cross sec-tion. Partly since one side surface of the annular spring 6 is complentary to the inside wall 3 of the recess 2, partly since one apex of the annular spring 6 is pisitioned inwardly of the rounded mouth edge 10' of the recess 2, and partly since another apex is in contact with the flange 4 of the tubular clasp 5, it is pos-sible to compress the annular spring 6 easily so as to remove from the recess 2 so that the ornamental button -- ~3 --20810~9 `,..~
body l can be exchanged with a new one.
In a fourth embodiment shown in FIG. 5, a recess formed in the rear surface of an ornamental button body with a bottom larger in diameter than a mouth is different from the inverted frustoconical shape of the foregoing embodiments and has a mere peripheral groove.
The rounded mouth edge 10' of the recess 2 is rounded to facilitate insertion of an annular spring 6. The annular spring 6 has a trapezoidal cross section; for insertion, the annular spring 6 is forced into the recess 2 with its slant surface facing the rounded mouth edge 10' of the recess 2 of ornamental button body 1, with its apex contacting a flange 4 of a tubular clasp 5 and with its bottom surface facing the mouth-side inside wall 3 of the recess 2. Therefore the annular spring 6 can be inserted in a simple operation and serves to secure the tubular clasp 5 to the ornamental button body 1 stably.
According to another feature of this invention, there is provided a method of manufacturing an ornamental button body assembly, comprising the steps of: inserting the flange 4 of the tubular clasp 5 into the recess 2 formed centrally in the rear surface of the ornamental button body 1 with the bottom larger in diameter thant the mouth, the flange 4 being substantailly equal in diameter to the mouth edge of the recess 2;
forcibly inserting the annular spring 6 between the front sùrface of the flange 4 and the mouth-side inside wall 3 _ g _ 20810~9 of the recess 2 while compressing the annular spring 6;
and then restoring the compressed annular spring 6 to secure the tubular clasp 5 to .he ornamental button body 1.
To carry out this method, an apparatus such as shown in FIG. 7 may be used. The apparatus comprises an ornamental button body holding die 11, an auxiliary die 12 and a punch 13. The holding die 11 has a flat upper surface for supporting an ornamental button body 1. The auxiliary die 12 is to be mounted on the upper surface of the holding die 11 and has vertically ex-tending and axially aligned upper and lower through-holes 15, 14. The diameter of the upper through-hole 15 is equal not only to the outside diameter of the flange 4 of the tubular clasp 5 but also to the diameter of the edge of the recess 2 of the ornamental button body 1. The diameter of the lower through-hole 14 is equal to the outside diameter of the ornamental button body 1. The mouth edge 16 of the upper through-hole 15 is tapered to support the annular spring 6 for com-pression. The punch 13 has a diameter equal to the diameter of the upper through-hole 15 of the auxiliary die 12 and is reciprocatingly movable into and out of the upper through-hole 15, having an axial hollow 17 large enough to receive the tubular portion of the clasp 5.
-- ~0 --20~1059 ~.
In use, the ornamental button body 1 with its front surface facing downwardly is placed on the hold-ing die 11, and then the flange~4 of the tubular clasp 5 is inserted into the recess 2 of the ornamental but-ton body 1, whereupon the auxiliary die 12 is posi-tioned above the ornamental button body 1. Meanwhile the ornamental button body 1 is placed in the lower through-hole 14 and then the annular spring 6 is placed on the tapered mouth edge 16 of the upper through-hole 15. Then the punch 13 is lowered to com-press the annular spring 6 and then to insert the com-pressed annular spring 6 into the recess of the ornamental button body 1, whereupon the compressing action is released to restore and hence expand the an-nular spring 6 to secure the tubular clasp 5 to the ornamental button body 1.
With the ornamental button body assembly of this invention, since the tubular clasp is attached to the ornamental button body merely by compressing and ex-panding the annular spring, it is very simple in con-struction and can be manufactured with ease.
Particularly since no mechanical deformation process is given to the flange of the tubular clasp while the tubular clasp is attached to the ornamental button body, precise and reliable attachment can be achieved, thus guaranteeing products free from -- ~1 --20810~9 defects. Furthermore, since no forcible pressing force of the punch is exerted directly on the ornamental button body during assembling, any damage would not be given to the front surface of the ornamental button body, thus obtaining a neat ornamental button body as-sembly.
An ornamental button body assembly is currently known (from Japanese Patent Publication No. HEI 1-37122) which comprises an ornamental button body made of hard plastics and having in its rear surface a recess with a groove extending along the deepest por-tion of its peripheral wall, and a metallic clasp in the form of a tube having at its base a ridged flange adapted to be deformed to expand outwardly; in assem-bling, the flange is inserted into the recess and is then compressed and expanded by a tool so as to be fitted in the groove.
Another known type ornamental button body as-sembly (Japanese Utility Model Laid-Open Publication No. HEI 2-130214) comprises an ornamental button body having in its rear surface a recess having a -1- ~
20810~9 -frustoconical peripheral wall increasing in diameter progressively from the bottom to the mouth, and a clasp having a flange larger in diameter than that of the mouth of the recess; in assembling, the clasp is forcibly pressed against the ornamental button body to bend the peripheral portion of the flange in such a manner that the flange is inserted into the recess un-til it comes in contact with the peripheral wall of the recess.
Regarding the first-named prior art, in the ornamental button body assembly made of hard plastics, bone or ivory, since when the ridged flange of the metallic tubular clasp is inserted into the recess and is then compressed and expanded by a tool so as to be fitted into the groove extending along the deepest portion of the peripheral wall of the groove, the mouth edge of the groove would be damaged or expanded to receive the flange loosely, thus causing the ornamental button body to pivotally move with respect to the clasp. Furthermore, since a tool is used to forcibly press the ridged flange against the ornamen-tal button body, the pressing force is directly trans-ferred to the ornamental button body placed on a hold-ing die, thus causing the front surface of the ornamental button body to be damaged.
In the second-named prior art, since the clasp -having a flange larger in diameter than the mouth of the recess formed in the rear surface of the ornamen-tal button body is forcibly pressed against the ornamental button body by a tool to bend the peripheral portion of the flange in such a manner that the flange is fitted in the recess, the mouth edge of the recess would be damaged to receive the flange loosely, the pressing force is directly transferred to the ornamental button body placed on a holding die, thus causing the front surface of the ornamental but-ton body to be damaged.
SUMMARY OF THE INVENTION
It is therefore an object of this invention to provide an ornamental button body assembly in which a tubular clasp can be attached to the rear surface of an ornamental button body easily in a very simple con-struction without giving any damage not only to the clasp but also the front surface of the ornamental button body. Another object of the invention is to provide a method of manufacturing such an ornamental button body assembly.
According to a first aspect of the invention, there is provided an ornamental button body assembly comprising: an ornamental button body having in its rear surface a recess with a bottom larger in diameter than a mouth; a tubular clasp having at one end a flange substantially equal in diameter to a mouth edge of the 20~iO~9 recess, the flange being received in the recess; and an annular spring disposed between the flange and an mouth-side inside wall of the recess.
The recess may have an inverted frustoconical contour, the flange of the clasp being bent along an outer peripheral edge so as to form a complement to the sloping inside wall of the frustoconical recess.
According to a second aspect of the invention, there is provided a method of manufacturing an ornamental button body assembly, comprising the steps of: inserting a flange of a tubular clasp into a recess formed in a rear surface of an ornamental but-ton body with a bottom larger in diameter than a mouth, the flange being substantailly equal in diameter to a mouth edge of the recess; forcibly inserting an annular spring between a surface of the flange and a mouth-side inside wall of the recess while compressing the annular spring; and then restoring the compressed annular spring.
In assembling the ornamental button body assemb-ly of this invention, a tubular clasp having at one end a flange is placed in the recess formed in the rear surface of the ornamental button body, with an annular spring sandwiched between the inside wall of the recess and the front surface of the flange, so that the tubular clasp is attached to the ornamental button body stably, thus making the ornamental button 20~1059 body assembly durable in any use.
When this ornamental button body assembly is used in an ornamental button such as a female button, a male button or a tack button, the tubular portion projecting from the rear surface of the ornamental button body is pierced through, for example, a piece of cloth and then the distal end of the tubular por-tion is clenched against a female body, or the clasp having a U-shape tubular portion is placed on one sur-face of a piece of cloth and then the tack is pieced through the cloth from the other surface so as to be secured to the tubular clasp.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a cross-sectional view of a female button;
FIG. 2 is an exploded perspective view of an ornamental button body assembly;
FIG. 3 is a cross-sectional view of an ornamen-tal button body assembly according to one embodiment of this invention;
FIG. 4 is a cross-sectional view of a modified ornamental button body assembly according to another embodiment;
FIG. 5 is a cross-sectional view of another modified ornamental button body assembly according to still another embodiment;
20810~9 FIG. 6 is a cross-sectional view of a modified tubular clasp; and FIG. 7 is a cross-sectional view of an apparatus for manufacturing an ornamental button body assembly.
DETAILED DESCRIPTION
Several embodiments of an ornamental button body assembly according to this invention will now be de-scribed in detail with reference to the accompanying drawings.
As shown in FIGS. 1 and 2, an ornamental button body assembly according to a first embodiment of the invention includes an ornamental button body 1 for an ornamental button, such as a female-male button or a tack button, formed of hard plastics, bone, ivory or metal. The ornamental button body 1 has a recess 2 which is formed centrally in a rear surface of the ornamental button body 1 and which has a frustoconical inside wall 3 increasing in diameter progressively from the mouth to the bottomin such a manner that the area of the bottom of the recess 2 is slightly larger than that of the mouth. The ornamental button body as-sembly also includes a tubular clasp 5 having at one end a flange 4 which is substantially equal in diameter to a mouth edge 10 of the recess 2 and which is inserted in the recess 2. An annular spring 6 having a circular cross section and a cutout is inserted between _ the flange 4 and the mouth-side inside wall 3 of the recess 2. The annular spring 6 serves to hold the flange 4 of the tubular clasp 5 stably in the recess 2, preventing the flange 4 from being removed from the recess 2.
The annular spring 6 used in this embodiment should by no means be limited to a cutout-ring spring and may be a disk spring or a rubber spring, if it is a resilient member shrinkable and extendible radially within a constant circle. The tubular clasp 5 may be a clasp having a tubular portion whose distal end is folded into a U shape, as shown in FIG. 6. In FIG. 1, reference numeral 7 designates a female button body;
and 8, a piece of cloth through which the tubular por-tion of the clasp 5 attached to the rear surface of the ornamental button body 1 is pierced, whereupon the distal end of the tubular portion is clenched against the tubular portion of the female button body 7 to thereby attach the female button body 7 to the cloth 8.
According to a second embodiment, as shown in FIG. 3, the shape of a recess 2 formed centrally in the rear surface of an ornamental button body 1 is to-tally identical with that of the first embodiment. The shape of an outer peripheral edge 9 of a flange 4 of a tubular clasp 5 is different from that of the previous embodiment, being bent so as to complement to the 2081~59 slant inside wall 3 of the inverted frustoconical recess 2. A cutout annular spring 6 is inserted be-tween the bent outer peripheral edge 9 of the flange 4 and the mouth-side inside wall 3 of the recess 2.
With this arrangement, when a force is exerted on the button so as to remove the tubular clasp 5 from the recess 2 of the ornamental button body l, the an-nular spring 6 will shrink so as to move along the slant inside wall 3 of the recess 2 or will expand to move along the bent outer peripheral edge 9 of the flange 4, thus keeping a balanced condition so that the flange 4 will hardly be removed from the recess 2.
In a third embodiment shown in FIG. 4, a recess 2 formed in the rear surface of an ornamental button body l is similar to that of the previous embodiment except that the mouth edge lO'of the recess is rounded to facilitate insertion of an annular spring 6. The annular spring 6 has a generally triangular cross sec-tion. Partly since one side surface of the annular spring 6 is complentary to the inside wall 3 of the recess 2, partly since one apex of the annular spring 6 is pisitioned inwardly of the rounded mouth edge 10' of the recess 2, and partly since another apex is in contact with the flange 4 of the tubular clasp 5, it is pos-sible to compress the annular spring 6 easily so as to remove from the recess 2 so that the ornamental button -- ~3 --20810~9 `,..~
body l can be exchanged with a new one.
In a fourth embodiment shown in FIG. 5, a recess formed in the rear surface of an ornamental button body with a bottom larger in diameter than a mouth is different from the inverted frustoconical shape of the foregoing embodiments and has a mere peripheral groove.
The rounded mouth edge 10' of the recess 2 is rounded to facilitate insertion of an annular spring 6. The annular spring 6 has a trapezoidal cross section; for insertion, the annular spring 6 is forced into the recess 2 with its slant surface facing the rounded mouth edge 10' of the recess 2 of ornamental button body 1, with its apex contacting a flange 4 of a tubular clasp 5 and with its bottom surface facing the mouth-side inside wall 3 of the recess 2. Therefore the annular spring 6 can be inserted in a simple operation and serves to secure the tubular clasp 5 to the ornamental button body 1 stably.
According to another feature of this invention, there is provided a method of manufacturing an ornamental button body assembly, comprising the steps of: inserting the flange 4 of the tubular clasp 5 into the recess 2 formed centrally in the rear surface of the ornamental button body 1 with the bottom larger in diameter thant the mouth, the flange 4 being substantailly equal in diameter to the mouth edge of the recess 2;
forcibly inserting the annular spring 6 between the front sùrface of the flange 4 and the mouth-side inside wall 3 _ g _ 20810~9 of the recess 2 while compressing the annular spring 6;
and then restoring the compressed annular spring 6 to secure the tubular clasp 5 to .he ornamental button body 1.
To carry out this method, an apparatus such as shown in FIG. 7 may be used. The apparatus comprises an ornamental button body holding die 11, an auxiliary die 12 and a punch 13. The holding die 11 has a flat upper surface for supporting an ornamental button body 1. The auxiliary die 12 is to be mounted on the upper surface of the holding die 11 and has vertically ex-tending and axially aligned upper and lower through-holes 15, 14. The diameter of the upper through-hole 15 is equal not only to the outside diameter of the flange 4 of the tubular clasp 5 but also to the diameter of the edge of the recess 2 of the ornamental button body 1. The diameter of the lower through-hole 14 is equal to the outside diameter of the ornamental button body 1. The mouth edge 16 of the upper through-hole 15 is tapered to support the annular spring 6 for com-pression. The punch 13 has a diameter equal to the diameter of the upper through-hole 15 of the auxiliary die 12 and is reciprocatingly movable into and out of the upper through-hole 15, having an axial hollow 17 large enough to receive the tubular portion of the clasp 5.
-- ~0 --20~1059 ~.
In use, the ornamental button body 1 with its front surface facing downwardly is placed on the hold-ing die 11, and then the flange~4 of the tubular clasp 5 is inserted into the recess 2 of the ornamental but-ton body 1, whereupon the auxiliary die 12 is posi-tioned above the ornamental button body 1. Meanwhile the ornamental button body 1 is placed in the lower through-hole 14 and then the annular spring 6 is placed on the tapered mouth edge 16 of the upper through-hole 15. Then the punch 13 is lowered to com-press the annular spring 6 and then to insert the com-pressed annular spring 6 into the recess of the ornamental button body 1, whereupon the compressing action is released to restore and hence expand the an-nular spring 6 to secure the tubular clasp 5 to the ornamental button body 1.
With the ornamental button body assembly of this invention, since the tubular clasp is attached to the ornamental button body merely by compressing and ex-panding the annular spring, it is very simple in con-struction and can be manufactured with ease.
Particularly since no mechanical deformation process is given to the flange of the tubular clasp while the tubular clasp is attached to the ornamental button body, precise and reliable attachment can be achieved, thus guaranteeing products free from -- ~1 --20810~9 defects. Furthermore, since no forcible pressing force of the punch is exerted directly on the ornamental button body during assembling, any damage would not be given to the front surface of the ornamental button body, thus obtaining a neat ornamental button body as-sembly.
Claims (4)
1. An ornamental button body assembly, comprising:
(a) an ornamental button body having in its rear surface a recess with a bottom larger in diameter than a mouth of said recess;
(b) a tubular clasp having at one end a flange substantially equal in diameter to the diameter of a mouth edge of said recess, said flange being received in said recess;
(c) an annular spring disposed between said flange and a mouth-side inside wall of said recess; and (d) said annular spring being so designed that in a compressed state it is capable of passing through the mouth of the recess in the button body.
(a) an ornamental button body having in its rear surface a recess with a bottom larger in diameter than a mouth of said recess;
(b) a tubular clasp having at one end a flange substantially equal in diameter to the diameter of a mouth edge of said recess, said flange being received in said recess;
(c) an annular spring disposed between said flange and a mouth-side inside wall of said recess; and (d) said annular spring being so designed that in a compressed state it is capable of passing through the mouth of the recess in the button body.
2. An ornamental button body assembly according to claim 1, wherein said recess has an inverted frustoconical contour.
3. An ornamental button body assembly according to claim 2, wherein said flange of said clasp being bent along an outer peripheral edge so as to form a complement to the sloping inside wall of said frustoconical recess.
4. A method of manufacturing an ornamental button body assembly, comprising the steps of:
(a) inserting a flange of a tubular clasp into a recess formed in a rear surface of an ornamental button body with a bottom larger in diameter than a mouth, the flange being substantially equal in diameter to a mouth edge of said recess;
(b) forcedly inserting an annular spring between a surface of the flange and mouth-side inside wall of the recess while compressing the annular spring; and (c) then restoring the compressed annular spring.
(a) inserting a flange of a tubular clasp into a recess formed in a rear surface of an ornamental button body with a bottom larger in diameter than a mouth, the flange being substantially equal in diameter to a mouth edge of said recess;
(b) forcedly inserting an annular spring between a surface of the flange and mouth-side inside wall of the recess while compressing the annular spring; and (c) then restoring the compressed annular spring.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3314119A JPH05123206A (en) | 1991-10-31 | 1991-10-31 | Decorative body with clasp of button and its manufacture |
| JP3-314119 | 1991-10-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2081059A1 CA2081059A1 (en) | 1993-05-01 |
| CA2081059C true CA2081059C (en) | 1996-02-20 |
Family
ID=18049475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002081059A Expired - Fee Related CA2081059C (en) | 1991-10-31 | 1992-10-21 | Ornamental button body with clasp and method for manufacturing the same |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0540223B1 (en) |
| JP (1) | JPH05123206A (en) |
| KR (1) | KR940009650B1 (en) |
| BR (1) | BR9204307A (en) |
| CA (1) | CA2081059C (en) |
| DE (1) | DE69206760D1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104522943B (en) * | 2014-12-25 | 2017-04-12 | 香港多耐福有限公司 | Snap fastener |
| JP6847725B2 (en) * | 2017-03-23 | 2021-03-24 | Ykk株式会社 | Female button and combination of female button and male button |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1831291A (en) * | 1928-09-06 | 1931-11-10 | Scovill Manufacturing Co | Floating spring type fastener |
| DE1936163C3 (en) * | 1969-07-16 | 1975-09-11 | William Prym-Werke Kg, 5190 Stolberg | Decorative cap for a clothes button, especially for a snap fastener |
| DE3211453A1 (en) * | 1982-03-27 | 1983-09-29 | William Prym-Werke Kg, 5190 Stolberg | PLASTIC CAP ON HOLDING PARTS FOR RETAIL ITEMS LIKE PUSHBUTTON PARTS |
| JPH02130214U (en) * | 1989-04-05 | 1990-10-26 |
-
1991
- 1991-10-31 JP JP3314119A patent/JPH05123206A/en active Pending
-
1992
- 1992-10-19 EP EP92309538A patent/EP0540223B1/en not_active Expired - Lifetime
- 1992-10-19 DE DE69206760T patent/DE69206760D1/en not_active Expired - Lifetime
- 1992-10-21 CA CA002081059A patent/CA2081059C/en not_active Expired - Fee Related
- 1992-10-30 KR KR1019920020205A patent/KR940009650B1/en not_active IP Right Cessation
- 1992-10-30 BR BR929204307A patent/BR9204307A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| CA2081059A1 (en) | 1993-05-01 |
| BR9204307A (en) | 1993-05-04 |
| EP0540223A1 (en) | 1993-05-05 |
| JPH05123206A (en) | 1993-05-21 |
| EP0540223B1 (en) | 1995-12-13 |
| DE69206760D1 (en) | 1996-01-25 |
| KR940009650B1 (en) | 1994-10-15 |
| KR930007397A (en) | 1993-05-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |