CN105658107A

CN105658107A - Retainer for slide fastener opener and retainer manufacturing method

Info

Publication number: CN105658107A
Application number: CN201380080096.0A
Authority: CN
Inventors: 长谷川雅道
Original assignee: YKK Corp
Current assignee: YKK Corp
Priority date: 2013-10-07
Filing date: 2013-10-07
Publication date: 2016-06-08
Anticipated expiration: 2033-10-07
Also published as: CN105658107B; WO2015052756A1; TWI526167B; TW201521624A

Abstract

Provided is a retainer for which consideration has been given to make gate marks less noticeable. A resin retainer for a slide fastener opener is provided with a retainer pin (31) to be disposed parallel to the front of the separable pin (3a) and a retainer body (32) with a separable pin hole (42) into which the back of the separable pin (3a) is inserted, and a tape groove (41), which communicates with the separable pin hole (42), is formed on either the left or right side surface of the retainer body (32). The retainer for the slide fastener opener is characterized in having a gate mark (36c) towards the back of the direction in which the tape groove (41) of the retainer body (32) extends.

Description

The slide fastener manufacture method of the socket and socket of opening part

Technical field

The present invention relates to the slide fastener socket opening part, particularly relate to the socket of resin-made and the manufacture method of socket.

Background technology

As shown in Figure 10, with opening, part is fixed on the first parallel zipper strip 91 and the 2nd zipper strip 92 that extend along front and back slide fastener, and its formation comprises: plunger 93, it is fixed relative to the 2nd zipper strip 92 side on the width (direction, left and right) of the first zipper strip 91; With socket 94, it is fixed relative to the first zipper strip 91 side on the width of the 2nd zipper strip 92. This socket 94 has: socket body 95; The seat rod 96 outstanding with the 2nd zipper strip side in the front surface from socket body 95. In addition, socket body 95 has the bar-inserting hole 93a that the rear portion for above-mentioned plunger 93 is inserted in the first zipper strip side of front surface, and has for the slide fastener trough of belt 91a that the first zipper strip 91 inserts on the face of the first zipper strip 91 side in left and right side. In illustrated example, slide fastener trough of belt 91a is formed in the middle of the thickness (the thickness direction size=upper and lower of zipper strip is to size) of socket body 95.

In addition, as making there is a method of the socket shaping that this kind is formed, there is the injection molded based on resin. In injection molded, inject molten resin from cast gate to die cavity, therefore can be formed with gate mark (vestige of cast gate) on socket. More specifically, when carrying out injection molded, resin has been solidified to form socket in die cavity, and resin solidifies in cast gate and becomes cast gate resin portion, and cast gate resin portion and socket are formed continuously. Gate mark can be formed from socket on socket when this cast gate resin portion being separated. Therefore, from the viewpoint of die design, it is important that cast gate is located at where relative to the position of die cavity. Further, the position of conventional gate mark is formed in upside or downside (patent documentation 1,2) compared with slide fastener trough of belt. The position illustrating gate mark 95a in Fig. 10 is positioned at the situation of upside compared with slide fastener trough of belt 91a.

Prior art literature:

Patent documentation 1: Chinese patent application discloses No. 102120354 specification sheets, Fig. 5

Patent documentation 2: Chinese patent application discloses No. 1292241 specification sheets, Fig. 6

But, in above-mentioned conventional socket, zipper strip also can become dim space with bar-inserting hole because being connected. On the other hand, the part along slide fastener trough of belt in the left and right side of socket body (be the face of upside and the face of downside relative to slide fastener trough of belt) can be dim because of the space of slide fastener trough of belt, and causes becoming face that is bright under contrast and that easily recognized.Like this, for conventional socket, gate mark can be left on face that is bright and that easily recognized, therefore cause gate mark obvious in result.

In addition, in conventional socket, there is the situation of the current mark (FlowMark) defining the flow cracks representing molten resin on the surface of socket body. Along bringing explanation, if judging from the position of gate mark, then conventional socket, when injection molded, makes cast gate be formed in upside or downside (in the following description specifically for upside) compared with slide fastener trough of belt. So, the molten resin injected from cast gate to die cavity passes through from the space being equivalent to upside of socket body, and changes traveling direction after being collide on the face of opposition side with slide fastener trough of belt. That is, the molten resin being injected in die cavity from cast gate can the width distance of the socket body that advanced change afterwards its towards. In order to suppress the generation of current mark, it is preferable to, shorten until molten resin changes the distance in traveling direction as far as possible.

Summary of the invention

The present invention considers above-mentioned practical situation and makes, and its object is to, it is provided that a kind of at least make gate mark be not easy noticeable socket and the manufacture method of socket.

The slide fastener socket of the present invention is resin-made, and it has: relative to the seat anterior arranged in parallel rod of plunger; With socket body, it has the bar-inserting hole that the rear portion for plunger is inserted. And on a side in the left and right side of socket body, it is formed with the slide fastener trough of belt being connected with bar-inserting hole. And at the rear of the groove width scope of the slide fastener trough of belt of socket body, there is gate mark.

The side of the slide fastener trough of belt side of socket body can be plane shape, it is also possible to has concavo-convex etc., but all wishes to take following measure to make gate mark be not easy noticeable.

Namely, socket body has the side recess as depression being connected with slide fastener trough of belt at the bearing of trend rear of slide fastener trough of belt, and the peripheral part at side recess and the part along slide fastener trough of belt have plane shape portion, the bottom surface of side recess has gate mark.

The rear surface of socket body can also be the form being completely enclosed, it may be desirable to take following measure to suppress to be easy to the generation of current mark that is apparent on socket external surface.

That is, on the rear surface of socket body, it is formed with the slider bore for being inserted by the first slide block of ester moulding from rear with the state being connected with the rear of bar-inserting hole.

In addition, seat rod and socket body can also be upper and lower asymmetric shapes. But it is desirable in order to make gate mark be not easy noticeable and easily suppress the generation of current mark and take following measure.

That is, seat rod and socket body are set to upper and lower symmetric shape.

Form the manufacture method of slide fastener with the socket opening part of above-mentioned socket of the present invention, it may also be useful to fixed mould, by the moveable die that can arrange in the way of moving back and forth along the vertical direction with by the first slide block that can arrange in the way of moving back and forth along the longitudinal direction relative to fixed mould and the 2nd slide block relative to fixed mould. And closing in die process, making the first slide block advance to front, and make the 2nd slide block advance to rear, thus make cast gate be formed on the position at bearing of trend rear of slide fastener trough of belt, wherein, this cast gate is connected with the die cavity injected for molten resin. In addition, closing in the injection process after die process, inject molten resin from cast gate and make molten resin and the collision of the first slide block.

The effect of invention

Slide fastener according to the present invention socket opening part, owing to having, at the bearing of trend rear of dim space and slide fastener trough of belt, the gate mark being formed in slide fastener trough of belt side in the left and right side of socket body, so gate mark is not easy noticeable.

In addition, socket body has the side recess as depression being connected with slide fastener trough of belt at the bearing of trend rear of slide fastener trough of belt, and the peripheral part at side recess and the part along slide fastener trough of belt have plane shape portion, if doing like this, then dim space and slide fastener trough of belt and side recess play one sense continuously, and on the bottom surface of its side recess, there is gate mark, therefore gate mark is not easy noticeable.

And, on the rear surface of socket body, it is formed with the slider bore for being inserted by the first slide block of ester moulding from rear with the state being connected with the rear of bar-inserting hole, if doing like this, then if go out ground like that from the position judgment of gate mark, the molten resin injected from the position of gate mark in order to this socket shaping can collide with the first slide block forming slider bore profile, and change traveling direction after an impact and move in the die cavity corresponding with the shape of socket body, therefore compared with conventional product, shorten until the distance collided for the first time of molten resin, thus be not easy on socket body and form current mark.

In addition, seat rod and socket body are set to upper and lower symmetric shape, if doing like this, then flowing with the molten resin of the first slide block collision rift becomes upper and lower symmetry, is therefore not easy on socket body and forms current mark.

Accompanying drawing explanation

Fig. 1 is the stereographic map of the slide fastener representing the socket comprising first embodiment of the invention.

(a) of Fig. 2 is the vertical view representing the state that the slide fastener of the socket comprising first embodiment of the invention is closed, and a part of Fig. 2 (a) is set to the vertical view that sectional view represents by (b) of Fig. 2.

Fig. 3 is the vertical view representing the state that the slide fastener of the socket comprising first embodiment of the invention is opened, and a part for slide fastener is set to sectional view.

(a) of Fig. 4��(d) is the vertical view of the socket representing first embodiment of the invention, right side view, front view, line A-A sectional view successively.

Fig. 5 is the stereographic map of the socket representing second embodiment of the invention.

Fig. 6 is the stereographic map representing the shaping dies that the socket for second embodiment of the invention uses.

The first slide block when (a), (b) of Fig. 7 is represent that state opened by mould successively and the side-view of the 2nd slide block, vertical view, (c) of Fig. 7 is the front view of the first slide block.

(a), (b) of Fig. 8 represents the first slide block when closing mould state and the side-view of the 2nd slide block, vertical view.

Fig. 9 is the process picture sheet of the program representing injection molding method.

Figure 10 is the stereographic map of the slide fastener of the example representing and comprising conventional socket.

Embodiment

As shown in FIG. 1 to 3, slide fastener 1 has as basic formation: two zipper teeth chains 2a, 2b, its by front and back to being set to length direction and direction, left and right is set to width; Drawing head with not shown, it slides along two zipper teeth chains 2a, 2b of left and right relative configuration. In this embodiment, the front and back making to draw head to slide in, the direction of closed two zipper teeth chains 2a, 2b is set to front to, and the direction opening two zipper teeth chains 2a, 2b is set to rear to. In the following description, front upwards, front and back is to the lower direction being Fig. 2, and rear is to the upper direction being Fig. 2. Left direction on direction, left and right is the left direction of Fig. 2, and right direction is the right direction of Fig. 2. In addition, as with front and back to and orthogonal direction, direction, left and right upper and lower upwards, upper direction be direction nearby relative to Fig. 2 paper, lower direction is inboard direction relative to Fig. 2 paper.

Each zipper teeth chain 2a, 2b have: zipper strip 21a, the zipper strip 21b of bar-shape (elongated oblong-shaped), and direction, left and right to being set to length direction and is set to width by front and back by it; The multiple chain teeth 22 fixing at spaced intervals with the one end along zipper strip 21a, the width of zipper strip 21b, make chain denture be formed as row by multiple chain tooth 22. Each chain tooth 22 is such as resin-made. In addition, two zipper teeth chain 2a, zipper teeth chain 2b, on relative two zipper strip 21a, the zipper strip 21b basis with relative two chain dentures (multiple chain tooth 22), also have one and open part 3.

Opening part 3 is fixed in the rearward end of two zipper strip 21a, zipper strip 21b, more specifically, is fixed on rear compared with the chain denture of both sides at spaced intervals. In addition, open part 3 to be made up of the plunger 3a on be fixed in two zipper strips 21a, 21b and fixing socket 3b on the other. After, that side zipper strip 21a being fixed with plunger 3a is called the first zipper strip, that side zipper strip 21b being fixed with socket 3b is called the 2nd zipper strip.

Plunger 3a is the club extended along the longitudinal direction. In the longitudinal direction, plunger 3a is fixed on the rearward end of the first zipper strip 21a, more specifically, is fixed on rear at spaced intervals relative to chain denture. In addition, in the lateral direction, on the end of the 2nd zipper strip 21b side that plunger 3a is fixed on the width of the first zipper strip 21a. At the upper and lower parallel with the thickness direction of the first zipper strip 21a upwards, and plunger 3a fixes in the way of the middle portion at its whole height (top/bottom latitude) clips the first zipper strip 21a. In other words, the end of the 2nd zipper strip 21b side on the width of the first zipper strip 21a is embedded in plunger 3a.

As shown in Figure 1 to 4, the socket 3b of the first enforcement mode of the present invention has: seat rod 31, and it is arranged in parallel on a direction (the 2nd zipper strip 21b side) in direction, left and right relative to the front portion of the plunger 3a extended along the longitudinal direction; With socket body 32, it has the bar-inserting hole 42 that the rear portion for plunger 3a is inserted. And, socket body 32 front surface and in the lateral direction with an above-mentioned direction be opposition side direction (the first zipper strip 21a side) part on be formed with bar-inserting hole 42, and be bonded to seat rod 31 with the state outstanding to front on the front surface of this socket body 32 and the part of the 2nd zipper strip 21b side in the lateral direction.

In the longitudinal direction, socket 3b is fixed in the rearward end of the 2nd zipper strip 21b, more specifically, is fixed on rear at spaced intervals relative to chain denture. In addition, in the lateral direction, the end of the first zipper strip 21a side that socket 3b is fixed on the width of the 2nd zipper strip 21b. In the vertical direction, and socket 3b (seat rod 31 and socket body 32) fixes in the way of the middle portion at its whole height (top/bottom latitude) clips the 2nd zipper strip 21b. In other words, the end of the 2nd zipper strip 21b side on the width of the 2nd zipper strip 21b is buried underground in present rod 31 and plunger 32.

Seat rod 31 has: the seat rod main body portion 31a extended along front and back; With engaging portion 31b, the leading section in the face of its first zipper strip 21a side of plunger 3a from the left and right side of seat rod main body portion 31a, towards the front of bar-inserting hole 42 with laterally projecting. Engaging portion 31b forms the middle portion of the whole height of present rod 31.In addition, in the left and right side of plunger 3a on the leading section in the face of the 2nd zipper strip 21b side of seat rod 31, canyon topography becomes the locking groove portion 31c having storage engaging portion 31b.

Socket body 32 is the hexahedron with face before and after up and down. In addition, each is formed as plane shape in illustrated example. Plane shape not only comprises plane, also comprises with the face (face gone out with circular arc shape drum and the face being recessed into circular arc shape) of arc-shaped bend. Such as upper surface and lower surface become in illustrated example go out with the drum in the face of arc-shaped bend face (more specifically, such as upper surface be by become gradually from the two ends of whole width towards centre high in the way of the face that goes out of drum). In addition, the side of the first zipper strip 21a side of socket body 32 in left and right side has for the slide fastener trough of belt 41 that the first zipper strip 21a inserts. Slide fastener trough of belt 41 extends along the longitudinal direction and makes front openings and make the groove that rear is closed. Bar-inserting hole 42 it is communicated with in the 2nd zipper strip 21b side, the front openings of this bar-inserting hole 42 relative to this slide fastener trough of belt 41. On the other hand, at the rear of bar-inserting hole 42, the first zipper strip 21a side is closed, and the 2nd zipper strip 21b side is through.

Socket body 32 has: wall extension 33, and it extends from the rear end of seat rod 31 to rear; First main wall 34 and the 2nd main wall 35, its first zipper strip 21a side in the lateral direction from the both ends up and down of wall extension 33 is given prominence to parallelly; Joined wall 36, its by the end of the first zipper strip 21a side in the first main wall 34 and the 2nd main wall 35 front and back each other to total length in rearward end engage; With cell wall 37,37, its from the end of the first zipper strip 21a side the first main wall 34 and the 2nd main wall 35 by across be formed between the first main wall 34 and the 2nd main wall 35 between the upper and lower every in the way of outstanding. Further, the space being formed between upper and lower cell wall 37,37 becomes slide fastener trough of belt 41. Incidentally, each cell wall 37 of illustrated example the front and back of the first main wall 34 and the 2nd main wall 35 to total length in be formed in compared with joined wall 36 in whole scope on the front. Therefore joined wall 36 is continuous with the rear of upper and lower cell wall 37. In addition, the socket 3b of present embodiment is upper and lower symmetric shape, and therefore slide fastener trough of belt 41 is configured in the middle portion of the whole height of socket 3b.

Wall extension 33 is the bar-shaped of cross section rectangle. In addition, in illustrated example, the left and right width ratio seat rod 31 of wall extension 33 is formed wide, the face (face of bar-inserting hole 42 side) of the first zipper strip 21a side in the left and right side of wall extension 33 and the corresponding face of seat rod 31 are formed as roughly same planar, and the face of the 2nd zipper strip 21b side in the left and right side of wall extension 33 is outstanding to side compared with seat rod 31. The width up and down of wall extension 33 is identical with the width up and down of seat rod 31. In addition, the first outstanding from the two ends up and down of wall extension 33 to side main wall 34 and the 2nd main wall 35 are all tabulars.

Joined wall 36 has: groove closure 36a, and the rear of slide fastener trough of belt 41 is closed by it; With hole closure 36b, the first zipper strip 21a side in the rear of bar-inserting hole 42 is closed by it. Therefore, the space surrounded by joined wall 36 (hole closure 36b), wall extension 33, first main wall 34 and the 2nd main wall 35 becomes the slider bore 43 that the first slide block for ester moulding (not shown in FIG) inserts, and slider bore 43 is connected with bar-inserting hole 42.The side of joined wall 36 is the face of slide fastener trough of belt 41 side in the left and right side of socket body 32, and be the side forming the bearing of trend rear of slide fastener trough of belt 41 and the bearing of trend rear of upper and lower cell wall 37, the side of this kind of joined wall 36 is formed gate mark 36c.

Gate mark 36c is arranged on the face of the first zipper strip 21a side of joined wall 36 (groove closure 36a), and is formed in the bearing of trend rear of slide fastener trough of belt 41, is in other words formed in the rear of the groove width scope W of slide fastener trough of belt 41. In addition, in the longitudinal direction, gate mark 36c is formed in the leading section of joined wall 36. In other words gate mark 36c is arranged on the face of slide fastener trough of belt 41 side of the left and right side of socket body 32, and is formed on the leading section of the side that the bearing of trend rear to slide fastener trough of belt 41 is formed. More specifically, the front end of gate mark 36c is consistent with the front end of joined wall 36. In addition, in the vertical direction, the center of gate mark 36c is consistent with the middle point of groove width scope W. Incidentally, although gate mark 36c becomes the region that the face with the first zipper strip 21a side in joined wall 36 is the circle of same planar in illustrated example, but it is not limited thereto, it is possible to become depression according to forming process or become pimple.

It is noticeable that the socket 3b of the first enforcement mode of above-mentioned the present invention makes gate mark 36c be not easy. Its first reason is, has gate mark 36c at the bearing of trend rear of the slide fastener trough of belt 41 as dim spatial portion. In addition, the 2nd reason is, the center of gate mark 36c is consistent with the middle point of groove width scope W, and slide fastener trough of belt 41 and gate mark 36c have one sense. Further, its 3rd reason is, the front end of gate mark 36c is consistent with the front end of joined wall 36, and slide fastener trough of belt 41 and gate mark 36c have one sense.

As shown in Figure 5, the difference of the socket 3b of socket 3b and the first enforcement mode of the 2nd enforcement mode of the present invention is, the face of the first zipper strip 21a side of the plunger 3a in the left and right side of socket body 32 has at the bearing of trend rear of slide fastener trough of belt 41 caves in (more specifically compared with each cell wall 37, depression for layer difference shape) side recess 36d, and the part (part along slide fastener trough of belt 41) at each cell wall 37 is upper and has plane shape portion 38 on the peripheral part (being the upper and lower part along side recess 36d in the drawings) of side recess 36d.

In the vertical direction, recess 36d in side is formed relative to the entire scope of the groove width scope W of slide fastener trough of belt 41. In the longitudinal direction, side recess 36d is formed in the length range of the anterior-posterior length of joined wall 36, the therefore front openings of side recess 36d, and side recess 36d is connected with slide fastener trough of belt 41. Further, gate mark 36c is formed on the bottom surface (i.e. the face of the first zipper strip 21a side) of side recess 36d. In addition, the front end of gate mark 36c is consistent with the front end of side recess 36d. And in the vertical direction, the center of gate mark 36c is consistent with the intermediate point of the whole height of side recess 36d, wherein, side recess 36d has the up and down width identical with groove width scope W.

Plane shape portion 38 is the part of plane shape, and plane shape not only comprises plane as mentioned above, also comprises with the face (face gone out with circular arc shape drum and the face being recessed into circular arc shape) of arc-shaped bend.

The socket 3b of the 2nd enforcement mode of above-mentioned the present invention is formed in the way of making side recess 36d be connected with slide fastener trough of belt 41, therefore create slide fastener trough of belt 41 and the one sense of side recess 36d, just make side recess 36d be the part of slide fastener trough of belt 41 by visuognosis.And in the vertical direction, the entire scope of the groove width scope W of side recess 36d and slide fastener trough of belt 41 is formed accordingly, therefore more promote the one sense of slide fastener trough of belt 41 and side recess 36d. In addition, at slide fastener trough of belt 41 and side recess 36d, there is plane shape portion 38 up and down, therefore become pattern as three lines. Therefore, the gate mark 36c being formed on the recess 36d of side is not easy noticeable.

The first of above-mentioned the present invention and the 2nd implements the injection molded that the manufacture method use of the socket 3b of mode take resin as raw material. The manufacture method of the socket 3b of the 2nd enforcement mode is below described. As shown in Figure 6, the mold for injection molding used in this manufacture method has: fixed mould 5; By the moveable die 6 that can be supported in the way of moving back and forth along the vertical direction relative to fixed mould 5; With the first slide block 7 that can move back and forth along the longitudinal direction relative to fixed mould 5 and the 2nd slide block 8.

Mold for injection molding is formed under conjunction mould state: the die cavity 11 as spatial portion corresponding with the shape of socket 3b; Cast gate 12, it forms the profile of the cast gate resin portion 12r being connected with gate mark 36c, and as the path being connected with die cavity 11; With the runner 13 as the path being connected with cast gate 12.

Die cavity 11 has: make the seat rod recess 31x that the profile of seat rod 31 is shaped; Make the socket body recess 32x that the outside surface in the profile of socket body 32 (i.e. six faces) is shaped; With the protuberance that the internal surface in the profile making socket body 32 is shaped.

The formation of socket body recess 32x comprises: wall extension recess 33x, and it makes the outside surface (face of the 2nd zipper strip 21b side and a part for a part for front surface for socket body 32 and the rear surface of socket body 32) in the left and right side of socket body 32 of wall extension 33 be shaped; First main wall recess 34x and the 2nd main wall recess 35x, it makes the outside surface of the first main wall 34 and the 2nd main wall 35 be shaped respectively; Joined wall recess 36x, it makes the outside surface (part for the rear surface of socket body 32 and a part for side) of joined wall 36 be shaped; With cell wall recess 37x, it makes the outside surface (part for the side of socket body 32) of cell wall 37 be shaped. In addition, not shown first main wall recess 34x in figure 6.

Protuberance has: make the zipper strip geosynclinal convex portion 41x that slide fastener trough of belt 41 is shaped; Make the bar-inserting hole protuberance 42x (with reference to Fig. 8) that bar-inserting hole 42 is shaped; With the slider bore protuberance 43x making slider bore 43 be shaped.

In the present embodiment, the parting line being formed on the socket 3b becoming product is positioned on the mid-way of whole height of socket 3b, and therefore fixed mould 5 and moveable die 6 are formed as upper and lower symmetric shape. And on the surface (with the face that moveable die 6 docks) of fixed mould 5, it is formed with the state caved in: the lower half of seat rod recess 31x and seat rod half recess 31y; The 2nd main wall recess 35x in the lower half of socket body recess 32x and socket body half recess 32y and the lower half of wall extension recess 33x and wall extension half recess 33y; With the lower half of runner 13 and runner half recess 13y.

In addition, on the surface of fixed mould 5, with the state being connected with plunger half recess 31y with side (opposition side of runner half recess 13y) and the front and back of wall extension half recess 33y and caving in, the lower half and the zipper strip that are formed with the mounting recess 21x of the zipper strip for loading the 2nd zipper strip 21b load half recess 21y.Zipper strip loads the half that the degree of depth of half recess 21y is the thickness of the 2nd zipper strip 21b. In addition, for the end of the fixing side of chain tooth 22 in the left and right end portions of the 2nd zipper strip 21b, formed thick on the thickness direction of zipper strip compared with other parts in addition. In order to part big for this thickness be located, and a part (location division) 21z making zipper strip load half recess 21y is formed deeply.

In addition, on the surface of fixed mould 5, being formed with the first reciprocal recess 8y of reciprocal recess 7y and the 2nd in the way of being connected along front and back and being also connected with socket body half recess 32y, these reciprocal recess 7y, 8y move the lower half of the first slide block 7 and the 2nd slide block 8 moved back and forth for making. More specifically, the first reciprocal recess 8y of reciprocal recess 7y and the 2nd is formed as, and the opposition side loading half recess 21y with the zipper strip on the direction, left and right in socket body half recess 32y is connected.

First reciprocal recess 7y is formed as, and the opposition side loading half recess 21y relative to wall extension half recess 33y with zipper strip is connected, and is connected with rear relative to the 2nd main wall recess 35x.

2nd reciprocal recess 8y half recess 31y excellent relative to seat and be formed in the opposition side that zipper strip loads half recess 21y at spaced intervals. More specifically, the 2nd reciprocal recess 8y is relative to loading, with zipper strip, the wall 31z that half recess 21y is opposition side and be formed in its side in the left and right wall forming seat rod half recess 31y. In addition, the 2nd reciprocal recess 8y is formed with front and side (opposition side of wall extension half recess 33y) communicatively relative to the 2nd main wall recess 35x in socket body half recess 32y.

In addition, moveable die 6 is and the shape of fixed mould 5 symmetry, is therefore formed on the surface (with the face that fixed mould 5 docks) of moveable die 6: the first main wall recess 34x; The upper half portion of wall extension recess 33x; The upper half portion of seat rod recess 31x; The upper half portion of zipper strip mounting recess 21x; With the upper half portion of runner 13.

More specifically, first slide block 7 has: the first base portion 71, and it is for the formation of the back-surface side of socket body 32 and mainly forms the rear surface of joined wall 36 (end of bar-inserting hole 42 side in the back-surface side of wall extension 33 and joined wall 36); First slider body portion 72, it is outstanding to front that it loads half recess 21y side from the zipper strip on the direction, left and right the front surface in the first base portion 71; With the first side forming portion 73, it is for the formation of the side of socket body 32 and forms the side (side of slide fastener trough of belt 41 side) of joined wall 36, and outstanding to front from the first base portion 71. In addition, on the face of the first side, slider body portion 72 in the first side forming portion 73, in the scope of its anterior-posterior length total length and in the middle portion of whole height, give prominence to and it is formed with the side protuberance 36v that the side recess 36d of joined wall 36 is shaped.

First slider body portion 72 is bar-shaped (more specifically, cross section rectangle bar-shaped) that extend along front and back, has: slider bore protuberance 43x, and it is outstanding to front from the first base portion 71; With reverse drawing chain trough of belt side portion protuberance 42y, its make in bar-inserting hole 42x with slide fastener trough of belt 41 be opposition side partially-formed, and outstanding to front from slider bore protuberance 43x. Incidentally, the front end face of reverse drawing chain trough of belt side portion protuberance 42y is and loads, in the left and right wall forming seat rod half recess 31y, the face that the wall 31z that half recess 21y is opposition side docks with zipper strip.

2nd slide block 8 has: the 2nd base portion 81, its for the formation of socket body 32 front-surface side and formed compared with wall extension 33 by the side of slide fastener trough of belt 41; Groove side portion protuberance 42z, slide fastener trough of belt 41 side in its left and right making bar-inserting hole protuberance 42x is shaped; Zipper strip geosynclinal convex portion 41x; With two side faces forming portion 83, it is for the formation of the side of the cell wall 37 in the side of socket body 32. The 2nd slider body portion 82 is formed by groove side portion protuberance 42z and zipper strip geosynclinal convex portion 41x. And opposition side (runner 13 side) from the seat rod recess 31x side direction direction, left and right makes groove side portion protuberance 42z, zipper strip geosynclinal convex portion 41x and two side faces forming portion 83 outstanding to rear from the rear surface in the 2nd base portion 81 successively. The aft end face of groove side portion protuberance 42z, zipper strip geosynclinal convex portion 41x and two side faces forming portion 83 is a face of one article of straight line in left-right direction.

Groove side portion protuberance 42z contacts and form bar-inserting hole protuberance 42x by carrying out face with the side of reverse drawing chain trough of belt side portion protuberance 42y.

In addition, by groove side portion protuberance 42z, zipper strip geosynclinal convex portion 41x and two side faces forming portion 83, and it is formed with the spatial portion corresponding with the shape of cell wall 37 up and down respectively at zipper strip geosynclinal convex portion 41x. Therefore, to be formed as different layers in the vertical direction relative to groove side portion protuberance 42z and two side faces forming portion 83 poor for zipper strip geosynclinal convex portion 41x. In other words, it is configured with zipper strip geosynclinal convex portion 41x in the middle portion of groove side portion protuberance 42z and the whole height of the both sides of two side faces forming portion 83.

In addition, as shown in Figure 6, Figure 7, binding surface between the first side forming portion 73 and two side faces forming portion 83 is formed with cast gate 12. Cast gate 12 extends in left-right direction, and make the inlet part of the molten resin in cast gate 12 and the shape of exit portion be formed as different shapes (in illustrated example, it is circular that the shape of inlet part is formed as, the shape of exit portion is formed as rectangle). And the inlet part of the molten resin in cast gate 12, the entrance recess 12x being equivalent to the depression of inlet part shape half is respectively formed in the first side forming portion 73 and two side faces forming portion 83, the outlet recess 12y of depression is only formed in the first side forming portion 73 by the exit portion of the molten resin on cast gate 12, and two side faces forming portion 83 has the plane 12z (with reference to Fig. 7, Fig. 8) closed by this outlet recess 12y.

When being undertaken above-mentioned mold for injection molding closing mould, moveable die 6 is docked with fixed mould 5, and the first slider body portion 72 making the first slide block 7 under the state advanced to front docks with fixed mould 5, the 2nd slide block 8 under the state advanced to rear is docked with this first slide block 7. In addition, by making the first slide block 7 and the 2nd slide block 8 dock, and form the joined wall spatial portion 36s corresponding with the shape of joined wall 36 by the first slide block 7 (the slider bore protuberance 43x in the first slider body portion 72, the first base portion 71 and the first side forming portion 73) and the 2nd slide block 8 (aft end face of the zipper strip geosynclinal convex portion 41x in the aft end face of the groove side portion protuberance 42z of bar-inserting hole protuberance 42x and the 2nd slide block 8). In addition, joined wall spatial portion 36s is spatial portion corresponding to the shape of the groove closure 36a with joined wall 36 and hole closure 36b, and being the enclosed space portion corresponding with the shape of such as lower part in die cavity 11, this part is the part all closed in the rear of part and the rear of slide fastener trough of belt 41 of slide fastener trough of belt 41 side in bar-inserting hole 42.

An embodiment of the socket 3b manufacturing process employing above-mentioned mold for injection molding is described.

(1) first as shown in (a) of Fig. 9, mold for injection molding is that state opened by mould. Then as shown in (b) of Fig. 9, carry out loading on fixed mould 5 operation of the 2nd zipper strip 21b. Specifically, the location division 21z (with reference to Fig. 6) of the zipper strip mounting recess 21x that the one end on the direction, left and right of the 2nd zipper strip 21b is placed on fixed mould 5 above locates. Thus, the side on the width of the 2nd zipper strip 21b is configured in die cavity 11 side, and another side on width is configured in the side left from die cavity 11. Incidentally, at this moment in the present embodiment, as shown in Figure 6, first slide block 7 is configured to the state (retrogressing state) kept out of the way compared with the 2nd main wall recess 35x to rear, and the 2nd slide block 8 is configured to the state (retrogressing state) kept out of the way compared with the 2nd main wall recess 35x to front.

(2) then carry out closing die process as shown in (c) of Fig. 9. Specifically, make moveable die 6 close relative to fixed mould 5 and two moulds 5,6 are docked. In addition, close ordinatedly with this, making the first slide block 7 and the 2nd slide block 8 advance in the way of becoming the state shown in Fig. 7 and Fig. 8 from the state shown in Fig. 6 (makes the first slide block 7 advance to front, 2nd slide block 8 is advanced) to rear, and the aft end face of the wall extension 33 of the seat rod recess 31x of fixed mould 5 is docked with the face, front end of the seat rod recess 31x of the first slide block 7, the aft end face of the two side faces forming portion 83 in the 2nd slide block 8 is docked with the face, front end of the first side forming portion 73 in the first slide block 7. Thus, form die cavity 11, cast gate 12, runner 13, and the state being set to these parts be connected is passed through for molten resin. In addition, at this moment the reverse drawing chain trough of belt side portion protuberance 42y in the first slide block 7 becomes, with the groove side portion protuberance 42z in the 2nd slide block 8, the state carrying out face along left and right and contacting, and is formed with bar-inserting hole protuberance 42x.

In addition, the advance of the first slide block 7 and the 2nd slide block 8 is such as utilize the structure of angle pin and bullport to carry out, or by driving motor special to carry out, wherein, angle pin is outstanding from fixed mould 5 and moveable die 6 towards another mould, and bullport guides angle pin and is formed on another mould above-mentioned. Made in the first slide block 7 and the 2nd reciprocating situation of slide block 8 by dedicated motor, it may not be necessary to motor special must be driven, it is also possible to carried out before or after closing die process synchronously with conjunction die process.

(3) as shown in (c) of Fig. 9, then carry out injecting the injection process of molten resin. Molten resin is injected in die cavity 11 via runner 13, cast gate 12. More specifically, so molten resin enters into joined wall spatial portion 36s (enclosed space portion) from cast gate 12, and collide with the first slide block 7 (the slider bore protuberance 43x in the first slider body portion 72) immediately. The advance circuit of the molten resin of collision rift is changed by Qiang Zhidi, and is envisioned for and advances in the way of forming the first main wall 34 and the 2nd main wall 35. And as shown in (d) of Fig. 9, in die cavity 11, it is filled with molten resin. In addition, in illustrated example, the impingement area(s) of slider bore protuberance 43x becomes the face orthogonal with direction, left and right.

(4) after the implantation after the specified time, resin is cooled to the degree that can fully maintain its shape, therefore next carries out die sinking operation as shown in (e) of Fig. 9.Specifically, moveable die 6 is made to retreat. In addition, when utilizing angle to sell while the retrogressing of moveable die 6, first slide block 7 and the 2nd slide block 8 are retreated, or drives when not utilizing angle to sell dedicated motor to make the retrogressing of the first slide block 7 and the 2nd slide block 8 and moveable die 6 retreat simultaneously or retreat before or after the retrogressing of moveable die 6.

(5) then, as shown in (f) of Fig. 9, (g) of Fig. 9, the runner resin portion 13r being filled in the runner 13 and cast gate resin portion 12r that is filled in cast gate 12 is cut off from the socket 3b becoming product, and the socket 3b being made to become goods by molding bar (ejectorpin) is release and reclaimed from fixed mould 5.

Injection molding method according to above-mentioned present embodiment, become the socket 3b of product is not easy formed current mark. Its first reason is, until the distance advanced of molten resin collision is short in injection process. That is, due to molten resin be injected into die cavity 11 tight after collide with slider bore protuberance 43x, so shorter than the entire length of die cavity 11 in the distance of movement this period. 2nd reason is, molten resin with slider bore protuberance 43x collision rift, towards the first main wall recess 34 and the 2nd main wall recess about 35 symmetrical mobile, namely molten resin be flowing in product up and down for symmetrical. Further, it is also symmetrical that the flowing becoming symmetrical up and down represents the pressure of the molten resin being applied on the 2nd zipper strip 21b, it is possible to avoid situation as the 2nd zipper strip 21b is out of shape by this pressure.

The present invention is not limited to above-mentioned enforcement mode, can suitably change in the scope not departing from its purport. Such as, in the present embodiment, although making cell wall 37 give prominence to from the both sides of the first main wall 34 and the 2nd main wall 35, but it is not limited thereto, makes as long as in order to form slide fastener trough of belt 41 cell wall 37 at least one party from the first main wall 34 and the 2nd main wall 35 give prominence to towards the opposing party. Therefore, although cell wall 37 is given prominence to from the first main wall 34, it is possible to think and be not extruded with cell wall 37 from the 2nd main wall 35.

In addition, in the socket 3b of the 2nd enforcement mode, the bearing of trend rear of the slide fastener trough of belt 41 of side recess 36d in joined wall 36, and to be formed in the way of depression compared with cell wall 37 in the entire scope of groove width scope W, but it is not limited thereto, can also be, to be formed in the way of depression compared with cell wall 37 in the scope at least partially of groove width scope W. Therefore can also be that side recess 36d is only formed in a part for rear part of groove width scope W. But the one sense recognized to improve the view-based access control model of slide fastener trough of belt 41 and side recess 36d, it is preferable to side recess 36d is connected with the rear of slide fastener trough of belt 41.

In addition, in the socket 3b of the 2nd enforcement mode, in the entire scope of the anterior-posterior length that side recess 36d is formed in joined wall 36, but it is not limited thereto, it is possible to think, only it is formed in the leading section of joined wall 36, or the situations such as the front side half being formed in the anterior-posterior length of joined wall 36, in this case, on joined wall 36, in the bearing of trend rear of slide fastener trough of belt 41 and the part having formation socket body 32 side in the bearing of trend rear part of side recess 36d. And, in this case, it is preferably, the face of slide fastener trough of belt 41 side in the left and right side of socket body 32 and the peripheral part of side recess 36d and the part along slide fastener trough of belt 41 is made to be plane shape portion 38, peripheral part at this not only comprises the upper and lower part along side recess 36d in joined wall 36, also comprises the bearing of trend rear part of side recess 36d.

In addition, the slide fastener being suitable for the socket that the present invention respectively implements mode describes, as an example, the example being formed chain denture by multiple chain tooth 22, but it is not limited to this, can also be by the bent chain denture being processed as coil shape and formed of monofilament folding of resin-made, namely be formed the example of chain denture by so-called coil chain tooth.

Description of reference numerals

1 slide fastener

2a zipper teeth chain

2b zipper teeth chain

21a first zipper strip

21b the 2nd zipper strip

21x zipper strip mounting recess

21y zipper strip loads half recess

21z location division

22 chain teeth

3 open part

3a plunger

3b socket

31 rods

31a seat rod main body portion

31b engaging portion

31c locking groove portion

31x seat rod recess

31y seat rod half recess

31z wall

32 socket bodies

32x socket body recess

32y socket body half recess

33 wall extensions

33x wall extension recess

33y wall extension half recess

34 first main walls

34x first main wall recess

35 the 2nd main walls

35x the 2nd main wall recess

36 joined walls

36a groove closure

36b hole closure

36c gate mark

36d side recess

36s joined wall is with spatial portion (enclosed space portion)

36v side protuberance

36x joined wall recess

37 cell walls

37x cell wall recess

38 plane shape portions

41 slide fastener troughs of belt

W groove width scope

41x zipper strip geosynclinal convex portion

42 bar-inserting holes

42x bar-inserting hole protuberance

42y reverse drawing chain trough of belt side portion protuberance

42z groove side portion protuberance

43 slider bore

43x slider bore protuberance

5 fixed moulds

6 moveable dies

7 first slide blocks

7y first is recess back and forth

71 first base portions

72 first slider body portions

73 first side forming portions

8 the 2nd slide blocks

The reciprocal recess of 8y the 2nd

81 the 2nd base portions

82 the 2nd slider body portions

83 two side faces forming portions

11 die cavities

12 cast gates

12r cast gate resin portion

12x entrance recess

12y exports recess

12z plane

13 runners

13y runner half recess

13r runner resin portion

91 first zipper strips

91a slide fastener trough of belt

92 the 2nd zipper strips

93 plungers

93a bar-inserting hole

94 sockets

95 socket bodies

95a gate mark

96 rods

Claims

1. the slide fastener socket opening part, is resin-made, and it has: relative to the seat rod (31) anterior arranged in parallel of plunger (3a); With socket body (32), it has the bar-inserting hole (42) of the rear portion insertion for described plunger (3a), on a side in the left and right side of described socket body (32), it is formed with the slide fastener trough of belt (41) being connected with described bar-inserting hole (42), this slide fastener socket opening part is characterised in that

At the bearing of trend rear of the described slide fastener trough of belt (41) of described socket body (32), there is gate mark (36c).

2. the slide fastener according to claim 1 socket opening part, it is characterized in that, described socket body (32) has the side recess (36d) as depression being connected with described slide fastener trough of belt (41) at the bearing of trend rear of described slide fastener trough of belt (41), and peripheral part in described side recess (36d) and in the part of described slide fastener trough of belt (41), there is plane shape portion (38)

The bottom surface of described side recess (36d) has described gate mark (36c).

3. the slide fastener according to claim 1 and 2 socket opening part, it is characterized in that, on the rear surface of described socket body (32), the state being connected with the rear with described bar-inserting hole (42) is formed with the slider bore (43) for being inserted by first slide block (7) of ester moulding from rear.

4. the slide fastener socket opening part according to claim 1,2 or 3, it is characterised in that, described seat rod (31) and described socket body (32) are set to upper and lower symmetric shape.

5. a slide fastener manufacture method for the socket opening part, the manufacture method of the socket opening part of the slide fastener according to any one of Claims 1-4, it is characterised in that,

Use fixed mould (5), by the moveable die (6) that can arrange in the way of moving back and forth along the vertical direction relative to described fixed mould (5) with by the first slide block (7) that can arrange in the way of moving back and forth along the longitudinal direction relative to fixed mould (5) and the 2nd slide block (8)

Closing in die process, described first slide block (7) is advanced to front, and described 2nd slide block (8) is advanced to rear, cast gate (12) is thus made to be formed on the position at bearing of trend rear of slide fastener trough of belt (41), wherein, this cast gate (12) is connected with the die cavity (11) injected for molten resin

In injection process after described conjunction die process, inject molten resin from described cast gate (12) and make described molten resin and described first slide block (7) collision.