TH20351B - Chip slider and template for casting chip slider with die. - Google Patents

Abstract

DC60 (01/12/41) in die-cast zipper slider. With connecting ears to fix the bar pull tab that can be replaced Plastic model, slider housing The ear extends from the top end of the pilot pole on the upper wing to the The rear end of the upper wing And ends in the lower end protrusions away from the top flank by a gap where the retaining ring of the pull bar is fastened through there. Through its base To make it easy to make such ears Plastic deformation To reduce the size of Gaps after fixing In this structure Due to the first slider And the second one of The template for casting the zipper slider with the die can be inserted from the front and back, it is possible that Will record such an ear without causing any separation On all its looks In a die-cast zipper slider With connecting ears to fix the bar pull tab that can be replaced Plastic model, slider housing The ear extends from the top end of the pilot pole on the upper wing to the The rear end of the upper wing And ends in the lower end protrusions away from the top flank by a gap where the retaining ring of the pull bar is fastened through there. Through its base To make it easy to make such ears Plastic deformation To reduce the size of Gaps after fixing In this structure Due to the first slider And the second one of The template for the die-cast zipper slider can be inserted from the front and back. Will record such an ear without causing any separation On all its looks

Claims (13)

1. The zipper slider consists of (a) a die-cast slider housing (1) which is assembled with upper and lower flanges (2,3) connected at its forward end (10) by a pilot post; (b) a protruding pull tab lug (5) that extends from the upper surface of the aforementioned pilot post (4) to the open rear end (11) of the aforementioned upper flange (2); and (c) a pull tab (17) with a connecting ring (18) that is threaded onto the aforementioned pull tab lug (5). The zipper slider is characterized by the fact that the aforementioned pull tab lug (5) has a hollow channel (12) that extends longitudinally through its base, and a distal projection (14) that extends from the rear end of the aforementioned pull tab lug (5) to and ends near the upper surface of the aforementioned upper flange (2). This distal projection (4) is roughly equal in width to the hollow channel (12) and is spaced (15) away from the aforementioned upper flange (2). 2. The zipper slider according to claim 1, in which the hollow channel (12) protruding through the base of the eyelet, is attached to the pull tab (5), has a hexagonal contour and a pair of vertical flat side walls (13). 3. The zipper slider according to claim 1 or 2, where the hollow channel (12) above, protruding through the base of the said pull tab lug (5), extends from the said base to the base of the said distal protrusion (14) which extends from the underside of the distal end of the said pull tab lug (5). 4. The zipper slider pursuant to claim 1, where the gap (15) said between the said upper flange (2) and the said terminal protrusion (14) of the pull tab attachment loop (5) is roughly equal in size to the thickness of the said attachment ring (18) of the said pull tab (17). 5. A zipper slider according to claim 1 or 4 where the said upper flap (2) on its upper surface has a groove (16) that extends from the said rear end (11) forward beyond the position below the said terminal projection (14). The said groove (16) has a curved cross-section and is wider than the width of the said terminal projection (4). 6. The zipper slider according to claim 5, where the groove (16) with such curved cross-section has a contour that is fairly consistent with a portion of the contour of the outer surface of such connecting ring (18) of such pull tab (17) when viewed from such rear end (11) of such upper wing (2). 7. The zipper slider according to claim 1, where the loop for attaching the pull tab (5) is tapered when viewed in planar form from the top end of the base to the back end (11) as mentioned above. 8. Any of the zipper sliders under claims 1 through 7, where the aforementioned upper flap (2) on its upper surface at opposite ends of the base of the pull tab attachment lug (5) has a central platform (19) that protrudes toward the center of the slider housing (1) and extends longitudinally between the aforementioned front and rear ends (10, 11). 9. A zipper slider under any of the claims 1 through 8, where the pull tab (17) is attached to the pull tab attachment loop (5) by threading the attachment ring (18) onto the pull tab attachment loop (5) through the gap (15) between the upper flap (2) and the end protrusion (14), and then causing the pull tab attachment loop (5) to undergo plastic deformation to reduce the size of the gap (15). 10. A template for casting a zip slider with a die, which includes the slider housing (1) assembled with upper and lower flanges (2, 3) connected at its front end (10) by the pilot post (4) and a cantilevered pull-bar lug (5) extending from the upper front surface of the pilot post (4) to the rear end (11) of the upper flange (2), and the pull-bar lug (5) with an extended end (14) extending from the lower surface of the rear end of the pull-bar lug (5) to and ending near the surface. The upper part of the upper wing (2) of the slider housing (1) and the upper surface of the cantilevered pull tab (5) are formed by the following: (a) an upper die (20) with a first cavity (26) for forming the upper surface of the upper wing (2) of the slider housing (1) and the upper surface of the cantilevered pull tab (5); (b) a lower die (21) with a second cavity (27) for forming the lower surface of the lower wing (3). The upper and lower dies (20, 21) are able to move toward and toward each other; (c) a first plug-shaped slider (2) that is movable between the upper and lower dies (20, 21); (d) a groove-shaped slider (23) that is able to move relative toward and toward the first plug-shaped slider (22) for forming the end projection (14) of the pull tab (5) and the lower surface of the pull tab (5); (e) a third groove-shaped slider (24). The first and second sliding shafts (22, 23) and the upper die (20) are movable and can be moved on the lower die (21) to form the front part of the pilot post (4), the guide groove (8), and the inner part of the guide wing (7). (f) The fourth plug-shaped sliding shaft (25) is movable toward and toward the third sliding shaft (24) to form the rear part of the pilot post (4), the guide groove (8), and the outer part of the guide wing (7). The front surface, side walls (13), and the hollow (12) that extend longitudinally through the base of the connecting lug (5) are compressed by the first sliding shaft (22). 11. A mold for casting the zipper slider by die according to claim 10, in which the first slider shaft (22) has a first shaft housing, a long central projection (30) extending centrally from one end of the first shaft housing for forming the hollow channel (12), and a pair of short side projections (31) extending from one end of the first shaft housing and laterally spaced on the opposite side of the central projection (30) for forming the side walls (13), and the second slider shaft (23) has a second shaft housing, a pair of buttons (34) on the opposite side of the second shaft housing for gripping the slider. The central projection (30) is used to form the underside of the pull tab lug (5) and the stepped cutout (35) which is positioned at the common base of the button (34) and can come into contact with the central projection (30) to form the end projection (14) of the pull tab lug (5). 12. A template for casting the zipper slider with a die according to claim 11, in which the second slider shaft (23) on its lower surface, longitudinally has a central ridge (36) of a curved transverse cross-section and a width of roughly equal to the width of the pull tab attachment lug (5) and extends to the center of the button (34). The distal end of the central ridge (36) is positioned below and in contact with the lower surface of the central projection (30) of the first slider shaft (22). 13. A mold for casting the zipper slider with a die according to claims 10, 11 or 12, in which the said upper die (20) on one face of the said cavity (26) has a groove (28) for receiving the said first and second slider shafts (22, 23) in such a way that the common lower face (43) of the said first and second slider shafts (22, 23) is eccentrically offset upwards from the lower face of the said upper die (20) for forming a stepped platform (19p on the upper wing (2).