CN110312448A

CN110312448A - The manufacturing method and forming device of forming face connector and forming face connector

Info

Publication number: CN110312448A
Application number: CN201780086598.2A
Authority: CN
Inventors: 权田英嗣; 桥爪淳
Original assignee: YKK Corp
Current assignee: YKK Corp
Priority date: 2017-02-15
Filing date: 2017-02-15
Publication date: 2019-10-08
Anticipated expiration: 2037-02-15
Also published as: TW201831109A; JPWO2018150493A1; WO2018150493A1; TWI626903B; CN110312448B; JP6794082B2

Abstract

Forming face connector (1,1a, 2,3) of the invention includes the base part (10) of the lengthwise on the 1st direction；With multiple snap-fit elements (20,20a, 20b, 20c, 20d, 70), its upper surface for standing up base part (10), snap-fit element (20,20a, 20b, 20c, 20d, 70) include bar portion (21,21c, 21d, 71)；It is prominent along the 2nd direction from the upper end of bar portion (21,21c, 21d, 71) with hook portion (31,31b, 81).Hook portion (31,31b, 81) has and towards hook top becomes the thin shape of head.The lower surface of hook portion (31,31b, 81) has the compressing surface (32,82) for being formed more smooth than the upper surface of hook portion (31,31b, 81) and the pressing of the die cavity face progress by shaping dies is compressed.Such forming face connector (1,1a, 2,3), which becomes, to be had higher peel strength relative to the ring of gynetype face connector and can also obtain the new forming face connector of good skin sense of touch.

Description

The manufacturing method and forming device of forming face connector and forming face connector

Technical field

The present invention relates to a kind of forming face connector in flat baseplate part configured with multiple snap-fit elements, manufactures to be somebody's turn to do Forming device used in the manufacture of the manufacturing method of forming face connector and the forming face connector.

Background technique

Back and forth, there is known the face connector of the gynetype with multiple rings and can tear open relative to the gynetype face connector The face connector product that the forming face connector of the male of dress is used with a pair of of combination.In general, by synthetic resin The forming face connector of male for being formed and manufacturing is to erect setting in the upper surface of flat base part to have mushroom Multiple male snap-fit elements of the forms such as shape and formed.

The face connector product of face connector with such male is currently widely used in diversified commodity, Also it is mostly used for the keeping device such as the diaper of disposable diaper, infant encloses trousers, protects the joint of trick, waist with tightly Such commodity are dismounted relative to body as waist clothing (lumbago belt), gloves etc..

In the forming face connector used in disposable diaper etc., as the representative form of male snap-fit element, The generally known form for having J shape, the form of palm tree, mushroom form etc..For example, the snap-fit element of J shape has From base part, prominent and upper end bends to hook-shaped form upward.Snap-fit element with such J shape at Shape face connector is described in No. 1998/014086 bulletin of International Publication No. (patent document 1: Japanese Unexamined Patent Application Publication 2001-501120 Bulletin is corresponding) etc..

The snap-fit element of palm tree has following form: have: bar portion is vertically protruded from base part；With it is hook-shaped Engaging head, on one side from the upper end of the bar portion towards become reciprocal direction both direction be bent while extend. The forming face connector of snap-fit element with such palm tree is described in 7,516, No. 524 specifications of U.S. Patent No. (patent document 2) etc..

Mushroom snap-fit element has following form: have: bar portion is vertically protruded from base part；With it is discoid Engaging head, be configured at the top of bar portion, it is whole towards outside in the upper end periphery for overlooking snap-fit element Shi Yicong bar portion The mode of stretching is integrally formed.Forming face connector with such mushroom snap-fit element is described in International Publication No. 1994/023610 bulletin (patent document 3: Japanese Kohyo 8-508910 bulletin is corresponding), International Publication No. 2000/ No. 000053 bulletin (patent document 4: Japanese Unexamined Patent Application Publication 2002-519078 bulletin is corresponding) etc..

Existing technical literature

Patent document

Patent document 1: International Publication No. 1998/014086

Patent document 2: 7,516, No. 524 specifications of U.S. Patent No.

Patent document 3: International Publication No. 1994/023610

Patent document 4: International Publication No. 2000/000053

Summary of the invention

Problems to be solved by the invention

For having the snap-fit element of J shape for example described above, the connection of the forming face of the snap-fit element of palm tree Part, in the case where having engaged the ring of face connector of gynetype (such as fiber of non-woven fabrics), ring is difficult to from J shape or palm Tree-shaped snap-fit element is extracted.Therefore, the forming face connector of the snap-fit element with J shape or palm tree have relative to Gynetype face connector has the tendency of higher peel strength.

In general, the forming face connector of these multiple snap-fit elements with J shape or palm tree is by making The mould wheel of multiple die cavitys for having shape corresponding with the snap-fit element is formed with used in outer circumferential surface section and is continuously closed It is manufactured at the forming of resin.In addition, being continuously formed using snap-fit element of the mould wheel to J shape or palm tree In the case where, need to be shaped to make the upper end of snap-fit element to 1 direction or to two sides for becoming reciprocal direction To in hook-shaped bending and outstanding shape.

But, in previous forming, in order to be extracted snap-fit element from the die cavity of mould wheel but not damage snap-fit element, only The direction on hook-shaped engaging head can be made towards the direction of the mechanical direction (MD) along the conveying direction for becoming formed body.Cause And in the past, the direction with hook-shaped engaging head can not be continuously manufactured by and intersect (orthogonal) towards with mechanical direction (MD) The forming face connector of the snap-fit element of crisscross (CD).

In addition, the upper end of snap-fit element is bent in the case where the snap-fit element of previous J shape or palm tree Hook-shaped, therefore, the area of the upper surface (top end face) of snap-fit element is smaller.Therefore, it is touching as forming face connector When the upper surface side of snap-latch surface, the area contacted with skin becomes smaller.Thus, it is used in for example by such forming face connector In the case that disposable diaper, diaper enclose the product that trousers etc. are easy to contact with skin, require the product of soft sense of touch, produce sometimes The skin sense of touch of product is deteriorated.

Moreover, base end part or bar portion that the slave base part of the snap-fit element of previous J shape or palm tree erects are easy to Formed thinner.Therefore, it is also envisaged that: by forming face connector from gynetype face connector to male (or by the forming face of male Connector is to gynetype face connector) strength pressing and both make in the case where having engaged, the base end part or bar portion of snap-fit element are easy It is bent in because of pressing force, leads to the breakage of forming face connector.

On the other hand, mushroom snap-fit element is formed with discoid engaging head in the upper end of snap-fit element, because This, can make the upper surface of snap-fit element be exposed to top with the area bigger than the snap-fit element of J shape or palm tree.Cause This, the forming face connector with mushroom snap-fit element has this good feature of skin sense of touch.In addition, being easy to engage The bar portion of element forms thicker, therefore, can be steadily even if bar portion is also difficult to be bent by pressing force as described above Maintain the shape of snap-fit element.

Moreover, making the nothing as gynetype face connector for the forming face connector with mushroom snap-fit element Woven fabric can be such that multiple rings steadily engage when engaging.But, mushroom snap-fit element is not such as J shape or the shape of palm tree The upper end of the such snap-fit element of state bends to hook-shaped.Therefore, in the case where mushroom snap-fit element, it is strong that there is also removings Spend the situation weaker than the peel strength of J shape or the snap-fit element of palm tree, it is desirable that improve.

In addition, in general, the face connector of male there are following situations: the engaging rate of ring, peel strength etc. are easy to root Change according to the construction of non-woven fabrics etc. as gynetype face connector, the performance of male face connector is by relative to the affine of non-woven fabrics Property or so.Accordingly, it is intended that by increase snap-fit element form variation galore get all the ready various types of male at Shape face connector, male face connector can be selected according to non-woven fabrics, according further to product purpose.

The present invention is made into view of above-mentioned conventional problems, is specifically designed to provide a kind of by making to engage Element has and the forming face connector of previous different property with form that is new and having feature.In addition, of the invention Be designed to provide it is a kind of can steadily manufacture with from the manufacturing method of the forming face connector of previous different property and Forming device.

The solution to the problem

In order to achieve the above objectives, forming face connector provided by the present invention is a kind of plastic forming face company Fitting, the forming face connector include base part, are formed as along the 1st direction and the 2nd side intersected with the 1st direction To the tabular of extension, and the lengthwise on the 1st direction；With multiple snap-fit elements, the base part is stood up Upper surface, the snap-fit element includes bar portion, erects from the base part；With at least one hook portion, from the bar portion Upper end it is prominent along the 2nd direction, forming face connector is most important is characterized in that for this, the hook portion have make it is described The thin shape of the head that the size in the 1st direction is successively decreased towards the hook top of the hook portion, the lower surface of the hook portion locally has There is the compressing surface to be formed more smooth than the upper surface of the hook portion.

In forming face connector of the invention, it is preferred that the upper surface of the hook portion is arranged to by step than institute The upper surface for stating bar portion is high, and the hook portion has following shape: described in the snap-fit element from the 1st direction The upper surface of hook portion is in convex-shaped, and the lower surface of the hook portion is in non-convex-shaped.

In addition, in forming face connector of the invention, it is also possible to a part of the upper surface of the hook portion from described The upper surface of bar portion is continuously formed, and the hook portion has following shape: in the snap-fit element from the 1st direction When, the upper surface of the hook portion is in convex-shaped, and the lower surface of the hook portion is in non-convex-shaped.

In which case it is preferable that the outer surface of the upper end of the bar portion is formed as spherical surface.

Moreover, in forming face connector of the invention, be also possible to the hook portion upper surface and the bar portion it is upper Surface is formed as single flat surface, and the top end part of the hook portion obliquely configures downwards.

In which case it is preferable that the snap-fit element has a pair of of reinforcing ribs, which is configured at The two sides in the 1st direction of the hook portion, link the hook portion upper end and the bar portion.

In forming face connector of the invention as described above, it is preferred that in the hook from the 2nd direction When portion, the hook portion is formed as asymmetric in the width direction of the hook portion.

In addition, the forming face connector of another form provided by the present invention is a kind of plastic forming face connection Part, the forming face connector include base part, are formed as along the 1st direction and the 2nd direction intersected with the 1st direction The tabular of extension, and the lengthwise on the 1st direction；With multiple snap-fit elements, the base part is stood up Upper surface, the snap-fit element include bar portion, erect from the base part；With at least one hook portion, from the bar portion Upper end is prominent along the 2nd direction, and forming face connector is most important is characterized in that for this, and the hook portion has and makes described the The thin shape of the head that the size in 1 direction is successively decreased towards the hook top of the hook portion, in the hook portion from the 2nd direction When, the hook portion is formed as asymmetric in the width direction of the hook portion.

In which case it is preferable that the lower surface of the hook portion locally have to be formed than the hook portion upper table The smooth compressing surface in face.

In addition, being formed as in asymmetric situation in the direction of the width in the hook portion, it is preferred that the institute of the hook portion The one end for stating the 1st direction of compressing surface is configured at the position higher than the other end in the 1st direction of the compressing surface, In the snap-fit element viewed from above, the top end part of the hook portion is configured at the 1st direction relative to the bar portion On the position that is deviated to the one end side in the 1st direction of center.

Further it is preferred that the curvature in the hook portion from the 1st direction, at the top end part of the hook portion Radius be set in 0.06mm or more and be 0.18mm or less range in.

In addition, in forming face connector of the invention, it is preferred that be configured with 1 hook for 1 bar portion Portion, there is the bar portion hook for erecting from the base part and configuring towards the projected direction of the hook portion face is arranged, described Hook be arranged face have single flat surface, the single flat surface from than the hook portion on the lower be positioned against the base part shape At, also, it is orthogonal with the upper surface of the base part and orthogonal with the 2nd direction.

In which case it is preferable that the bar portion has in the snap-fit element from the 1st direction The bar back side that the opposite side in face is arranged in the hook is configured on 2nd direction, the bar back side has with far from the base The shape of the upper surface in material portion and decreasing dimensions that the hook in the bar portion is arranged between face and the bar back side.

It is further preferred, that the bar back side has convex in the snap-fit element from the 1st direction It is configured at the upside curved face part of the upper end of the bar portion and the downside curved face part of the concave lower end for being configured at the bar portion.

Further it is preferred that the hook portion has following shape in the snap-fit element from the 1st direction: The upper surface of the hook portion is in the convex surface for having the radius of curvature smaller than the radius of curvature of the upside curved face part of the bar portion Shape.

Furthermore in forming face connector of the invention, it is preferred that the maximum on the 2nd direction of the bar portion Size be set to 0.1mm or more and be 1.5mm hereinafter, the hook portion from the bar portion the 2nd direction outstanding most Big prominent size is set to 0.01mm or more and is 0.5mm or less.

Then, the manufacturing method of forming face connector provided by the present invention is the plastic forming face connection of manufacture The manufacturing method of part, the forming face connector include flat base part, are lengthways formed along mechanical direction；With it is more A snap-fit element stands up the upper surface of the base part, the most important spy of the manufacturing method of the forming face connector Sign is that the manufacturing method of the forming face connector includes: that the forming device has to be formed in outer circumferential surface section using forming device Have a mould wheel for the multiple die cavitys for having shape corresponding with the snap-fit element, the die cavity have in the die cavity institute at The snap-fit element of shape can not in a manner of keeping its shape invariance molding back-off (Japanese: アンダーカット shape) shape Shape, and being configured in the die cavity face of the die cavity can be when extracting the snap-fit element to a part of the snap-fit element Locally carry out the edge part of pressing compression；Synthetic resin material after melting is continuously squeezed out to the outer peripheral surface of the mould wheel And the base part is formed and in the die cavity of the mould wheel to the card on the outer peripheral surface of the mould wheel Element forming is closed, the snap-fit element includes bar portion, erects from the base part；With at least one hook portion, from the bar The upper end in portion is along the crisscross protrusion intersected with the mechanical direction；And it is the snap-fit element is strong from the die cavity It extracts to property processed, and pressing compression is carried out to the hook portion from the lower section of the hook portion using the edge part, and utilize institute It states edge part to nuzzle up below the hook portion hook portion, to be formed locally compressing surface in the lower surface of the hook portion.

Preferably, such the manufacturing method of the present invention includes: using the downstream side, simultaneously for being configured at the forming device And the pick-up roller with this pair of rolls of upside niproll and downside niproll, and by the forming face connector formed thereby from institute State the removing of mould wheel；And after having removed the forming face connector from the mould wheel, the upside is utilized to clamp roll-in By the snap-fit element, to make to be extracted from the die cavity and be plastically deformed towards the hook portion of oblique upper.

Further it is preferred that the manufacturing method of the present invention includes that the upper surface of the hook portion is made to form to obtain ratio by step The upper surface of the bar portion is high.

In addition, the manufacturing method of the forming face connector of another form provided by the present invention is that manufacture is plastic The manufacturing method of forming face connector, the forming face connector include flat base part, lengthways along mechanical direction It is formed；With multiple snap-fit elements, the upper surface of the base part is stood up, the manufacturing method packet of the forming face connector It includes: once-forming process, in the once-forming process, to the base part and standing up the more of the base part The once-forming body of a interim element is formed；With secondary forming process, in the secondary forming process, to it is described once at The interim element of body is heated, and from top by the interim member collapses, thus to the engaging member The forming face connector of part is formed, and the manufacturing method of the forming face connector is most important to be characterized in that, the forming The manufacturing method of face connector includes: using forming device in the once-forming process, which has in periphery Face is formed with the mould wheel for having multiple die cavitys of shape corresponding with the interim element, and the die cavity has in the mould The intracavitary interim element formed thereby can not in a manner of keeping its shape invariance molding back-off shape, in the die cavity Die cavity face, which is configured with, can locally carry out pressing pressure to a part of the interim element when extracting the interim element The edge part of contracting；By the synthetic resin material after melting to the outer peripheral surface of the mould wheel continuously squeeze out and in the outer of the mould wheel The base part is formed on circumferential surface, and the interim element is formed in the die cavity of the mould wheel, The interim element includes a bar portion, erects from the base part；With hook portion of at least one, from a bar The upper end in portion is along the crisscross protrusion intersected with the mechanical direction；And it is the interim element is strong from the die cavity Extracts and pressing compression is carried out to a hook portion from the lower section of a hook portion using the edge part to property processed, and Nuzzled up below a hook portion hook portion using the edge part, thus in the lower surface of a hook portion It is formed locally compressing surface.

Preferably, such the manufacturing method of the present invention includes: in the once-forming process, using being configured at The downstream side of forming device and the pick-up roller with this pair of rolls of upside niproll and downside niproll are stated, and will be formed thereby The once-forming body removed from the mould wheel；And after the once-forming body has been removed from the mould wheel, benefit Press the interim element with the upside niproll, thus make to be extracted from the die cavity and towards the described primary of oblique upper Hook portion plastic deformation.

Further it is preferred that the manufacturing method of the present invention includes: in the once-forming process, by step by institute The upper surface for stating a hook portion forms higher than the upper surface of a bar portion；And in the secondary forming process, lead to It crosses and flattens the upper end of the interim element from top, thus by the upper surface of the hook portion in the snap-fit element and bar portion Upper surface is formed as single flat surface.

Then, forming device provided by the present invention is forming or the forming face connector for being used in forming face connector The forming device of the forming of once-forming body, comprising: mould wheel rotates driving to a direction；And extrusion nozzle, after melting Synthetic resin material squeezed out towards the mould wheel, the forming device is most important to be characterized in that, in the outer peripheral surface of the mould wheel Portion, which is provided with, has shape corresponding with the interim element of the snap-fit element of the forming face connector or the once-forming body Multiple die cavitys of shape, the die cavity have the snap-fit element made of the die cavity internal shaping or the interim element can not The back-off shape of the molding in a manner of keeping its shape invariance, the mould wheel have the multiple discoid metals being axially laminated Plate, each metal plate have the 1st lamination surface and the 2nd lamination surface orthogonal to the axial direction, the 2nd lamination surface configuration of the metal plate In the opposite side of the 1st lamination surface, the metal plate includes multiple 1st plates, is recessed in the 1st lamination surface to institute The 1st die cavity that hook portion of the hook portion or the once-forming body of stating snap-fit element is formed；With multiple 2nd plates, 2nd lamination surface is recessed with that the bar portion of the snap-fit element or a bar portion of the once-forming body are formed 2 die cavitys, the adjacent earth formations toward each other that the 1st plate is connected with the 1st die cavity with the 2nd die cavity with the 2nd plate It is folded, the 1st die cavity to form the recessed position separated with peripheral end face in the 1st plate of size of the back-off shape, The peripheral end face of 2nd die cavity from the 2nd plate is continuously recessed towards radially inner side.

In forming device of the invention, it is preferred that most inner side position radially in the 1st die cavity be located at than Radial inside is more leaned in most inner side position radially in 2nd die cavity, the 1st die cavity and the 2nd die cavity it Between be formed with the step formed by the 2nd lamination surface of the 2nd plate.

In addition, in forming device of the invention, it is preferred that the hemispherical shape of the 1st die cavity is recessed in the described 1st The 1st lamination surface of plate, the radius of the semi-spherical shape of the 1st die cavity are set to 0.01mm or more and are 0.5mm or less.

Moreover, the 2nd die cavity has the circumferential size of the 2nd plate from the peripheral end face of the 2nd plate towards diameter The shape successively decreased inwardly, the inside top end face radially of the 2nd die cavity have a spherical surface, the spherical surface have 0.01mm with It above and is 0.5mm radius of curvature below.

The effect of invention

Forming face connector of the invention includes flat base part, extends along the 1st direction and the 2nd direction, and And compared with the 2nd direction, the lengthwise on the 1st direction；With multiple snap-fit elements, the upper surface of base part is stood up.Separately Outside, each snap-fit element includes bar portion, erects from base part；With at least one hook portion, from the upper end of bar portion along the 2nd side To prominent.

Make the size in the 1st direction towards the hook top of the hook portion and the thin shape of the head that successively decreases moreover, hook portion has.The hook The lower surface in portion locally has due to the die cavity face (especially, the edge part in die cavity face) in forming process from shaping dies Depressed compression and the compressing surface that is formed more smooth than the upper surface of hook portion.Especially, it is believed that: such hook portion lower surface Compressing surface forms harder than the upper surface of hook portion due to compression depressed when from shaping dies molding.

Here, the 1st direction in the present invention refer in manufacturing process's (forming process) of forming face connector along at The direction of shape face connector or the mechanical direction (direction M or MD) of once-forming body flowing.In addition, base part is on the 1st direction Lengthwise refers to that base part is lengthways formed along mechanical direction in forming process.In other words, also forming process is being utilized sometimes The forming face connector is carried out the processing such as cutting off after shaping forming face connector, but in this case, be cut off The base part of the forming face connector afterwards also not lengthwise on the 1st direction (mechanical direction) sometimes.The 2nd direction in the present invention Refer to crisscross (direction C or CD) orthogonal with mechanical direction (MD), and refers to the width side of the base part lengthways shaped To.

Compressing surface as described above is locally formed at lower surface and the hook portion including bar portion and with the thin shape of head Snap-fit element of the invention has the new form different from previous J shape, palm tree and mushroom.Have in this way Snap-fit element forming face connector of the invention in, be easy to be formed thicker by columnar bar portion.Therefore, even if gynetype face Connector is strongly pressed on forming face connector of the invention by biggish pressing force, and bar portion is also difficult to be bent, can Steadily maintain the shape of snap-fit element.In addition, bar portion is easy to ensure biggish intensity, therefore, can make relative to gynetype face The shear strength of connector increases.

Moreover, in this case, forming face connector of the invention can be pressed into gynetype face connector dearly.By This, makes ring near the root for the ring that each snap-fit element of forming face connector can be deeply inserted into gynetype face connector Reliably engage with snap-fit element.

In addition, in the present invention, forming the top of snap-fit element in such a way that the upper surface of bar portion significantly exposes upwards Face (upper surface).Therefore, in the case where touching forming face connector of the invention from the upper surface side for becoming snap-latch surface, bar The upper surface in portion is easy to widely contact with skin.In addition, hook portion forms smaller relative to bar portion, therefore, can reduce Hook portion influences (sense of discomfort) to its sense of touch bring when touching snap-fit element.Thus, forming face connector of the invention can Steadily obtain skin touching more good than the forming face connector with such as snap-fit element of J shape or palm tree in the past Sense, contact comfort.

Moreover, hook portion as described above is prominent from bar portion towards the 2nd direction in snap-fit element of the invention, also, The lower surface of hook portion is formed locally the compressing surface formed smooth and more harderly than the upper surface of hook portion.In addition, in the hook portion In, hook top end part is formed as the thin shape of head.In addition, the thin shape of so-called head refers in the present invention, when looking down, with hook portion Both side edges formed towards the mode that hook top moves closer to shape, the size in the 1st direction i.e., in hook portion is towards hook top Gradually smaller shape.It therefore, can be by this when engaging the ring of gynetype face connector with forming face connector of the invention The snap-fit element of invention is smoothly inserted into the interannular of gynetype face connector, further, it is possible to which bail is made to be hung on the hook of snap-fit element Portion and both make steadily to engage.

Moreover, snap-fit element of the invention and the previous forming face connector phase with for example mushroom snap-fit element Than the ring for being hooked into hook portion can be made to be difficult to disengage from snap-fit element.Thus, forming face connector of the invention can be relative to Gynetype face connector peel strength with higher.

I.e., forming face connector of the invention is by having the form of previous not found feature, become and meanwhile have as The forming face connector of the new type of lower advantage: bar portion is difficult to be bent, obtains the advantage that good skin sense of touch；Relatively In gynetype face, connector has the advantage that higher peel strength.Thus, forming face connector of the invention passes through addition It is provided in previous forming face connector, the variation of forming face connector can be increased.As a result, being easy to more precisely cope with each The gynetype face connector (non-woven fabrics) of seed type.

In such forming face connector of the invention, the upper surface of the hook portion in each snap-fit element is configured by step It obtains higher than the upper surface of bar portion.In addition, hook portion has following shape: in the snap-fit element from the 1st direction (MD), hook portion Upper surface (exterior upper portion) is in convex-shaped, and the lower surface (lower exterior face) of hook portion is in non-convex-shaped.

Here, the upper surface of hook portion refers in convex-shaped, the slave bar in the hook portion from the 1st direction (MD), in hook portion The base end part of portion side has towards the hook upper surface that hook top end part has a down dip seems the convex bending in a manner of heaving upwards Continuous bending part.In addition, the lower surface of hook portion refers in non-convex-shaped, the slave hook base end part direction in hook portion The hook lower surface (other than the lower surface of hook base end part and hook top end part) of hook top end part updip is from the 1st direction (MD) Formed when hook portion by least one of following part: not having the convex curved part in a manner of bloating downwards and It is inclined linear part as the crow flies；With the part of the curved bending of mode slightly concave inwardly.

In the snap-fit element with such shape, the upper surface of hook portion is in convex-shaped, therefore, makes hook portion to touching The influence of contact comfort when snap-fit element is smaller, and the skin sense of touch of forming face connector can be made better.In addition, hook The lower surface in portion is formed as non-convex-shaped, and therefore, the hook portion of snap-fit element is easy to capture ring, can make ring more stably with hook portion Engaging.Moreover, the upper surface of hook portion forms higher than the upper surface of bar portion by step, so that the ring for being engaged to snap-fit element is easy In the step being hooked between hook portion and bar portion, therefore, ring can be made to be difficult to disengage from snap-fit element.As a result, of the invention Forming face connector can have higher peel strength relative to gynetype face connector.

In addition, in forming face connector of the invention, be also possible to hook portion upper surface be not arranged to it is upper than bar portion Surface is high, and a part of the upper surface of hook portion is continuously formed from the upper surface of bar portion.In addition, in this case, hook portion also has Have following shape: in the snap-fit element from the 1st direction (MD), the upper surface (exterior upper portion) of hook portion is in convex-shaped, hook portion Lower surface (lower exterior face) be in non-convex-shaped.

In the snap-fit element with such shape, the upper surface for being configured at highest position of hook portion is from the upper of bar portion Surface is continuously formed, and therefore, influence of the hook portion to contact comfort when touching snap-fit element can be made smaller, therefore, The skin sense of touch of forming face connector can be made better.In addition, being formed as non-convex-shaped by the lower surface of hook portion, as above The hook portion for stating such snap-fit element is easy to capture ring, ring can be made more stably to engage with hook portion.

In the case where the snap-fit element of two forms as described above, outer surface (upper surface) shape of the upper end of bar portion As spherical surface.Thereby, it is possible to effectively improve the contact comfort of snap-fit element.

Moreover, being also possible to upper surface and the bar portion of the hook portion in snap-fit element in forming face connector of the invention Upper surface be formed as single flat surface, and the top end part of hook portion obliquely configures downwards.By the upper surface of hook portion and The upper surface of bar portion is formed as single flat surface, and contact comfort when so as to make to touch snap-fit element improves.In addition, Since the top end part of hook portion tilts downwards, the hook portion of snap-fit element is readily able to capture ring, also, makes the ring for being hooked into hook portion It is difficult to disengage from snap-fit element.

In this case, snap-fit element has a pair of of reinforcing ribs, which is configured at the 1st side in hook portion To the two sides of (MD), link upper end and the bar portion of hook portion.Thereby, it is possible to effectively improve the intensity of hook portion.As a result, it is possible to Increase forming face connector relative to the peel strength of gynetype face connector.

In forming face connector of the invention, in the hook portion of snap-fit element from the 2nd direction (CD), hook portion is formed It is asymmetric on the width direction of hook portion (i.e., the 1st direction (MD)).I.e., it is with the center in the width direction of hook portion Benchmark and part from the center to the side in the 1st direction that configured from and match from the center to the other side in the 1st direction The part set has mutually different shape.The snap-fit element of hook portion with such unique shape can be by above-mentioned pressure Contracting face locally and is steadily set to the lower surface of hook portion, also, having therefore can from previous different new form The range for the selection for expanding male face connector for various non-woven fabrics.

On the other hand, the forming face connector of another form of the invention includes flat base part, along the 1st Direction and the 2nd direction extend, and compared with the 2nd direction, the lengthwise on the 1st direction；With multiple snap-fit elements, setting is erect In the upper surface of base part.In addition, each snap-fit element includes bar portion, erected from base part；With at least one hook portion, from bar The upper end in portion is prominent along the 2nd direction.The size in the 1st direction is passed towards the hook top of the hook portion moreover, hook portion has The thin shape of the head subtracted.In addition, hook portion is formed as the width in hook portion in the hook portion of snap-fit element from the 2nd direction (CD) It spends asymmetric on direction (i.e., the 1st direction (MD)).

The snap-fit element of the invention of hook portion with such unique shape, which becomes, has previous not found feature Form forming face connector.Thus, forming face connector of the invention by be appended to previous forming face connector come It provides, the variation of forming face connector can be increased.As a result, it is possible to expand male face connector relative to various types of female The range of the selection of type face connector (non-woven fabrics).Moreover, having the shape of feature as described above by the hook portion of snap-fit element Shape, so that the lower surface of hook portion can locally have the compressing surface for being formed more smooth than the upper surface of hook portion.In addition, hook portion shape The shape thin as the head to attenuate towards hook top.As a result, forming face connector of the invention can have simultaneously it is following excellent Point: bar portion is difficult to be bent, obtains the advantage that good skin sense of touch；Has higher removing relative to gynetype face connector The advantage that intensity.

Moreover, being formed as asymmetric on width direction (the 1st direction) in hook portion in forming face connector of the invention In the case where, the one end (rear end) in the 1st direction of the compressing surface of hook portion is configured at more another than the 1st direction of the compressing surface The high position in end (front end).Moreover, the top end part of hook portion is configured at relative to bar portion in snap-fit element viewed from above The 1st direction on the position that is deviated to the one end side (rear side) in the 1st direction of center.Due to the such landform of hook portion As the shape reversed, in snap-fit element of the invention, above-mentioned compressing surface can be made more stably to be set to hook portion Lower surface.

In addition, in this case, the curvature in the case where hook portion from the 1st direction (MD), at the top end part of hook portion Radius be set in 0.06mm or more and be 0.18mm or less range in, preferably set in 0.12mm or more and be 0.15mm or less In the range of.Forming hook portion in such a way that top end part has such radius of curvature, the ring of gynetype face connector can be made It is easy to be hooked in the hook portion of snap-fit element.

Moreover, being configured with 1 hook portion for 1 bar portion in forming face connector of the invention.In this case, bar Portion has the hook arranging face for erecting from base part and configuring towards the projected direction of hook portion.Moreover, face, which is arranged, in hook has from hook The single flat surface formed underneath towards base part in portion.The flat surface is formed as orthogonal with the upper surface of base part and with the 2 (CD) is orthogonal in direction.Moreover, hook portion by from the flat surface along the 2nd direction it is outstanding in a manner of configure.

Since snap-fit element has shape as described above, bar portion can steadily have scheduled shape.In addition, even if Gynetype face connector is pulled to the direction for being provided projectingly contrary side with hook portion, also can be using bar portion steadily The state for maintaining ring to engage with snap-fit element.Therefore, peel strength can be made to increase.

In this case, in the snap-fit element from the 1st direction (MD), bar portion, which has, is configured at hook on the 2nd direction The bar back side of the opposite side in arranging face.The bar back side has with the upper surface far from base part and makes the hook in bar portion that face be arranged The shape of decreasing dimensions between the bar back side.Thereby, it is possible to steadily ensure the intensity of bar portion.Especially, though ring with Gynetype face connector is by contrary with being provided projectingly for hook portion into the 2nd direction (CD) in the state that snap-fit element engages The direction of side pull, bar portion is also difficult to be bent and (be difficult to lodge), therefore, can make the shearing relative to gynetype face connector Intensity increases.

In addition, in this case, in the snap-fit element from the 1st direction, the bar back side has convex be configured at The downside curved face part of the upside curved face part of the upper end of bar portion and the concave lower end for being configured at the bar portion.It shapes as a result, Face connector can have good skin sense of touch, and improve the intensity of bar portion.

Moreover, hook portion has following shape: the upper surface of hook portion is in tool in the snap-fit element from the 1st direction (MD) The convex-shaped of the standby radius of curvature smaller than the radius of curvature of the upside curved face part of bar portion.Thereby, it is possible to one side, and forming face to be maintained to connect The good skin sense of touch of fitting is easy to the bail of gynetype face connector being hung on snap-fit element on one side.

Especially in forming face connector of the invention, the full-size on the 2nd direction (CD) of bar portion is set to 0.1mm or more and be 1.5mm hereinafter, being preferably set to 0.2mm or more and being 1.0mm or less.In addition, the slave bar portion of hook portion is prominent The 2nd direction on the prominent size of maximum be set to 0.01mm or more and be 0.5mm hereinafter, be preferably set to 0.05mm or more and It is 0.1mm or less.As long as being formed with the forming face connector for the snap-fit element having a size that, it will be able to effectively increase The intensity of big each snap-fit element, relative to the peel strength of gynetype face connector.

Then, forming of the manufacturing method of the present invention in forming face connector of forming face connector as described above is manufactured Forming device is used in process, which, which has to be formed in outer circumferential surface section, has shape corresponding with snap-fit element The mould wheel of multiple die cavitys (also referred to as mold cavity space).Especially in the present invention, there is back-off shape in the die cavity that mould wheel is formed, Also, in the die cavity face of the die cavity of mould wheel configured with being capable of a part (hook portion) to snap-fit element when extracting snap-fit element Locally carry out the edge part of pressing compression.

Here, there is die cavity back-off shape to refer to, in the mechanical direction (MD) (circumferential direction of mould wheel) of observation and such as mould wheel When orthogonal section, die cavity is smallest size of minimum more orthogonal than crisscross (CD) (direction parallel with the axial direction of mould wheel) Sized fraction has the size ratio of crisscross (CD) most by the inboard position in the extraction direction (radial direction of mould wheel) of formed body The part that Shaozheng hands over sized fraction big.Due to die cavity have such back-off shape, in die cavity snap-fit element formed thereby without Method molding in a manner of keeping shape invariance corresponding with die cavity.Therefore, by as described later will in die cavity it is formed thereby Snap-fit element mechanically pull and forcibly extract, a part (hook portion) of snap-fit element is wiped at the edge part in die cavity face It crosses, and is compressed by locally pressing.

In the manufacturing method of the present invention, by the synthetic resin material after melting to being provided with back-off shape as described above The outer peripheral surface of mould wheel continuously spray.Base part is formed on the outer peripheral surface of mould wheel as a result, also, in mould wheel To the upper end with the bar portion erected from base part and from bar portion along the side of intersection intersected with mechanical direction (MD) in die cavity It is formed to the snap-fit element of (CD) at least one hook portion outstanding.

Next, by pulling base part made of forming etc. on the outer peripheral surface of mould wheel, it will be hard in the die cavity of mould wheel The snap-fit element of change is forcibly extracted from die cavity.At this point, using the edge part of setting to die cavity from the lower section of hook portion to engaging The hook portion of element carries out pressing compression, and the edge part is nuzzled up the hook portion of the snap-fit element below hook portion, thus in hook The lower surface in portion is formed locally the compressing surface more smooth than the upper surface of hook portion.Thereby, it is possible to efficiently and steadily manufacture tool There is the forming face of the invention for the snap-fit element for being formed with the compressing surface more smooth than the upper surface of hook portion in the lower surface of hook portion to connect Fitting or the forming face of the invention for being formed as the asymmetric snap-fit element in the width direction (MD) of hook portion with hook portion Connector.

In such the manufacturing method of the present invention, when forcibly extracting snap-fit element from the die cavity of mould wheel, make With the pick-up roller in the downstream side for being configured at forming device.In this case, pick-up roller has upside niproll and downside niproll This upper and lower a pair of rolls is connected by clamping forming face from downstream side with downside niproll using the upside niproll mutually inverted Part, thus to pull the snap-fit element made of die cavity internal shaping.As a result, in the lower surface part landform of the hook portion of snap-fit element At above-mentioned compressing surface.In addition, at this point, hook portion is compressed by locally pressing, therefore, sometimes in a manner of relative to bar portion updip It tilts upwards.

Also, by after the snap-fit element that the die cavity of mould wheel is pulled out in upside niproll and downside niproll above and below this Pass through between a pair of rolls, to can also be made using the pressing carried out by upside niproll relative to bar portion towards oblique upper Hook portion is deformed in a manner of curved downwards.Thereby, it is possible to more stably manufacture forming face connector of the invention.

Moreover, in the manufacturing method of the present invention, by the way that the die cavity of mould wheel is formed as scheduled shape, can to by The snap-fit element that step makes the upper surface of hook portion be formed higher than the upper surface of bar portion is formed.Thereby, it is possible to efficiently make Make the forming face connector that there is higher peel strength relative to gynetype face connector.

Then, the manufacturing method of another forming face connector of the invention includes: once-forming process, once-forming at this In process, the once-forming body with base part and the multiple interim elements for standing up base part is formed；With two Secondary forming process heats the interim element of once-forming body, and will be interim from top in the secondary forming process Member collapses, so that the forming face connector of the invention with snap-fit element be formed.

Especially in once-forming process of the invention, using forming device, which has in outer circumferential surface section It is formed with the mould wheel for having multiple die cavitys of shape corresponding with the interim element of once-forming body.In this case, in mould The die cavity that wheel is formed has back-off shape, also, is configured with the energy when extracting interim element in the die cavity face of the die cavity of mould wheel Enough a part (hook portion) to interim element locally carry out the edge part of pressing compression.

Synthetic resin material after melting is continuously squeezed out to the outer peripheral surface for the mould wheel for being provided with such back-off shape. Base part is formed on the outer peripheral surface of mould wheel as a result, also, is erected from base part in the die cavity of mould wheel to having Bar portion and from the upper end of a bar portion along hook portion of crisscross (CD) at least one outstanding interim element into Row forming.

Next, by pulling base part made of forming etc. on the outer peripheral surface of mould wheel, by the quilt in the die cavity of mould wheel Forming and harden after interim element forcibly extracted from die cavity.At this point, using the edge part for arriving die cavity is arranged from a hook The lower section in portion carries out pressing compression to a hook portion of interim element and the edge part is nuzzled up below a hook portion, and this faces When element a hook portion, the compressing surface more smooth than the upper surface of a hook portion is formed locally in the lower surface of a hook portion. Thereby, it is possible to the temporary element for being formed with the compressing surface more smooth than the upper surface of a hook portion in the lower surface of a hook portion The once-forming body of part is formed as the asymmetric temporary element in the width direction (MD) of a hook portion with a hook portion The once-forming body of part efficiently and is steadily formed.

Moreover, in secondary forming process of the invention, by by least part of the interim element of once-forming body It is flattened with the upper end of bar portion from top and makes its planarization, make interim deformed element.It as a result, also can efficiently and steadily Manufacture have be formed in the lower surface of hook portion the compressing surface more smooth than the upper surface of hook portion snap-fit element it is of the invention at Shape face connector or be the present invention that there is hook portion to be formed as the asymmetric snap-fit element in the width direction (MD) of hook portion Forming face connector.

In such the manufacturing method of the present invention, in once-forming process, in the die cavity from mould wheel by interim element When forcibly extracting, using the downstream side for being configured at forming device and there is upside niproll and downside niproll on this The pick-up roller of lower a pair of rolls.In this case, by utilizing the upside niproll mutually inverted and downside niproll from downstream side Once-forming body is clamped, the interim element made of die cavity internal shaping is pulled.As a result, in the following table of a hook portion of interim element Face is formed locally above-mentioned compressing surface.In addition, at this point, a hook portion is compressed by locally pressing, therefore, a hook portion sometimes It is tilted upwards in a manner of relative to a bar portion updip.

Also, after the interim element pulled out from the die cavity of mould wheel in upside niproll and downside niproll above and below this Pass through between a pair of rolls, to can also be made using the pressing carried out by upside niproll relative to bar portion towards on tiltedly Hook portion of side is deformed in a manner of curved downwards.Thereby, it is possible to more stably make above-mentioned once-forming body.

Moreover, in the manufacturing method of the present invention, in once-forming process, by the way that the die cavity of mould wheel is formed as predetermined Shape, also can be to the interim element for making the upper surface of a hook portion be formed higher than the upper surface of a bar portion by step It is formed.It, can be by card by being flattened from top by the upper end of interim element also, later, in secondary forming process The upper surface of hook portion and the upper surface of bar portion closed in element are formed as single flat surface, also, keep the top end part of hook portion downward Side's inclination.Thereby, it is possible to the rings for efficiently manufacturing the contact comfort of snap-fit element well and be hooked into hook portion to be difficult to from engaging The forming face connector that element disengages.

Then, forming device of the invention be used in forming face connector forming or forming face connector it is primary at The forming device of the forming of body, comprising: mould wheel rotates driving to a direction；And extrusion nozzle, by the synthesis after melting Resin material is squeezed out towards mould wheel.In addition, the outer circumferential surface section in mould wheel is provided with the snap-fit element having with forming face connector Or multiple die cavitys of the corresponding shape of interim element of once-forming body, these die cavitys have back-off shape, and in mould wheel Be configured with can be to the one of snap-fit element or interim element when by snap-fit element or the extraction of interim element the die cavity face of die cavity Part locally carries out the edge part of pressing compression.

In addition, mould wheel of the invention has the multiple discoid metal plates being axially laminated, each metal plate has respectively 2nd lamination surface of standby 1st lamination surface orthogonal to the axial direction and the opposite side for being configured at the 1st lamination surface.In this case, as The metal plate of mould wheel carries out the hook portion of snap-fit element or a hook portion of once-forming body using being recessed in the 1st lamination surface Forming the 1st die cavity the 1st plate and be recessed with a bar portion of bar portion or once-forming body to snap-fit element in the 2nd lamination surface 2nd plate of the 2nd die cavity being formed.

1st plate and the 2nd plate are adjacent to the 1st die cavity of the 1st plate with what the 2nd die cavity of the 2nd plate was connected toward each other Stacking forms mould wheel.The recessed position separated with peripheral end face in the 1st plate of the 1st die cavity of 1st plate, the 2nd die cavity is from the 2nd plate Peripheral end face it is continuously recessed towards radially inner side.1st die cavity of especially the 1st plate is stacked gradually in the 1st plate and the 2nd plate It is formed when getting up with the size for forming back-off shape relative to the 2nd die cavity.

In such forming device of the invention, it is capable of forming and is provided with back-off shape as described above and edge part Mould wheel.In addition, by using forming device of the invention, can to above-mentioned forming face connector of the invention, to become this The once-forming body of the forming face connector of invention is steadily formed.

In such forming device of the invention, most inner side position radially in the 1st die cavity of the 1st plate be located at than Radial inside is more leaned in radial most inner side position in 2nd die cavity of the 2nd plate.In addition, between the 1st die cavity and the 2nd die cavity It is formed with the step formed by the 2nd lamination surface of the 2nd plate.

By using such forming device, can to make by step the upper surface of hook portion formed than bar portion upper table The high snap-fit element in face or the temporary element for making the upper surface of a hook portion be formed higher than the upper surface of a bar portion by step Part is steadily formed.

Moreover, in forming device of the invention, recessed the 1st layer in the 1st plate of the 1st hemispherical shape of die cavity of the 1st plate Folded face.In this case, the radius of the semi-spherical shape of the 1st die cavity is set to 0.01mm or more and is 0.5mm hereinafter, preferably setting It at 0.05mm or more and is 0.1mm or less.In addition, the 2nd die cavity of the 2nd plate has the circumferential size of the 2nd plate from the outer of the 2nd plate The shape that all end faces are successively decreased towards radially inner side.In this case, the inside top end face radially of the 2nd die cavity has ball Face, the spherical surface have 0.01mm or more and be 0.5mm radius of curvature below, preferably have 0.05mm or more and be 0.1mm with Under radius of curvature.

It is formed, can be steadily formed with as described above by the 1st die cavity of the 1st plate and the 2nd die cavity of the 2nd plate The lower surface of hook portion is formed with the forming face connector of the snap-fit element of above-mentioned compressing surface or is had in a hook portion Lower surface is formed with the once-forming body of the interim element of above-mentioned compressing surface.

Detailed description of the invention

Fig. 1 is the perspective view for indicating the forming face connector of the embodiment of the present invention 1.

Fig. 2 is the perspective view for only indicating the snap-fit element of forming face connector.

Fig. 3 is the main view of the snap-fit element from the side (front side) of mechanical direction (MD).

Fig. 4 is the side view of the snap-fit element from the side (right side) of crisscross (CD).

Fig. 5 is the side view of the snap-fit element from the other side (left side) of crisscross (CD).

Fig. 6 is the top view of the snap-fit element from upside.

Fig. 7 is the enlarged view of the main part for enlargedly indicating the hook portion of snap-fit element.

Fig. 8 is the schematic diagram for schematically showing the manufacturing device of forming face connector of manufacture embodiment 1.

Fig. 9 is the schematic diagram for schematically showing the form of mould wheel of manufacturing device.

Figure 10 is the cross-sectional view for indicating the section orthogonal with circumferential direction of outer circumferential surface section of mould wheel.

Figure 11 is the state for schematically showing the midway being pulled out by the snap-fit element of the outer circumferential surface section forming of mould wheel Cross-sectional view.

Figure 12 is the perspective view of the forming face connector for the variation for indicating embodiment 1.

Figure 13 is the perspective view for indicating the forming face connector of the embodiment of the present invention 2.

Figure 14 is the perspective view for only indicating the snap-fit element of forming face connector.

Figure 15 is the main view of the snap-fit element from the side (front side) of mechanical direction (MD).

Figure 16 is the side view of the snap-fit element from the side (right side) of crisscross (CD).

Figure 17 is the side view of the snap-fit element from the other side (left side) of crisscross (CD).

Figure 18 is the perspective view for indicating the forming face connector of the embodiment of the present invention 3.

Figure 19 is the perspective view for only indicating the snap-fit element of forming face connector.

Figure 20 is the main view of the snap-fit element from the side (front side) of mechanical direction (MD).

Figure 21 is the side view of the snap-fit element from the side (right side) of crisscross (CD).

Figure 22 is the side view of the snap-fit element from the other side (left side) of crisscross (CD).

Figure 23 is the schematic diagram for schematically showing the manufacturing device of forming face connector of manufacture embodiment 3.

Figure 24 is the perspective view for only indicating the snap-fit element of variation of embodiment 1.

Figure 25 is the snap-fit element of another variation of embodiment 1 from the side (front side) of mechanical direction (MD) Main view.

Specific embodiment

Hereinafter, enumerating embodiment on one side and referring to attached drawing, the preferred embodiments of the present invention is explained in detail on one side.This Outside, the present invention is not limited completely by embodiments described below, if having with substantially the same structure of the present invention and Play the same role effect, it will be able to carry out the change of multiplicity.For example, being stood up into each embodiment below Number, configuration and formation density of the snap-fit element of the base part of shape face connector etc. are not particularly limited, can be any Ground change.

Embodiment 1

Fig. 1 is the perspective view for indicating the forming face connector of the present embodiment 1.Fig. 2 is the card for only indicating forming face connector Close the perspective view of element.Fig. 3~Fig. 6 is main view, right, side view, left side view and the vertical view of snap-fit element respectively Figure.Moreover, Fig. 7 is the enlarged view of the main part for indicating the hook portion of snap-fit element.

In addition, in the following description, the front-rear direction of forming face connector and once-forming body is vertical as described later The length direction of the forming face connector and once-forming body that shape longly, in addition, referring to along the system in forming face connector Make the direction for the mechanical direction (direction M or MD) that forming face connector or once-forming body are flowed in process.

Left and right directions refers to upper surface (or the following table of base part orthogonal to the longitudinal direction and along forming face connector Face) width direction.In this case, left and right directions and width direction can also say into orthogonal with mechanical direction (MD) intersect Direction (direction C or CD).Up and down direction (thickness direction) refers to base part orthogonal to the longitudinal direction and with forming face connector The orthogonal short transverse in upper surface (or lower surface).

The forming face connector 1 of the present embodiment 1 shown in FIG. 1 is by using the manufacture for having aftermentioned forming device 51 Device 50 and carry out the forming of thermoplastic resin to manufacture.The forming face connector 1 is manufactured into be filled in manufacture when looking down Set the sheet of longer rectangle on 50 mechanical direction.In addition, in the present invention, the length dimension and width of forming face connector 1 Degree size is not particularly limited.It can be appointed by cutting off the forming face connector 1 as caused by such as manufacturing device 50 system The size and shape of meaning ground change forming face connector 1.In addition, forming face connector 1 can also have in addition to square when looking down Shape other than shape.

The type for forming the synthetic resin of forming face connector 1 is also not particularly limited.As the forming in the present invention The material of face connector 1 can use such as polypropylene, polyester, nylon, polybutylene terephthalate or their copolymerization The thermoplastic resins such as object.The forming face connector 1 of the present embodiment 1 is formed by polypropylene.

The forming face connector 1 of the present embodiment 1 has laminal base part 10 and stands up the upper of base part 10 Multiple snap-fit elements 20 on surface.Base part 10 is formed in a manner of extending along mechanical direction (MD) and crisscross (CD), And it is lengthways formed along mechanical direction.In addition, base part 10 is formed in a manner of with scheduled thickness, base part 10 Upper and lower surfaces are flat and are formed as being parallel to each other.

Multiple snap-fit elements 20 are regularly arranged along mechanical direction (MD) and crisscross (CD).In addition, In the present invention, the configuration pattern of snap-fit element 20 is not limited.Such as multiple snap-fit elements 20 can also with zigzag etc. other Configuration pattern is regularly arranged in the upper surface of base part 10, can also randomly be set to the upper surface of base part 10.

Each snap-fit element 20 of the present embodiment 1 is respectively provided with: bar portion 21, is erected from base part 10；With 1 hook portion 31, It is only protruded from the upper end of bar portion 21 along crisscross (CD) to the right.In the case where the present embodiment 1, each snap-fit element 20 hook portion 31 is all prominent from bar portion 21 towards crisscross identical direction (right side).

The bar portion 21 of snap-fit element 20 stands on the upper surface of base part 10.The bar portion 21 includes base end part 22, from base Material portion 10 erects, and integrally has flexure plane in outer peripheral edge portion；With bar main part 23, be continuously configured at base end part 22 it On.In addition, 22 ground of base end part that the bar portion 21 of the present embodiment 1 can also be not provided with flexure plane is formed.

Bar portion 21 has on the basis of the center of mechanical direction (MD) and in mechanical direction (the width side of bar portion 21 To) on symmetrical shape.In order to improve intensity of the bar portion 21 relative to base part 10, the base end part 22 of the bar portion 21 be formed as with The area in the orthogonal section of up and down direction is incremented by with close to base part 10.

The section orthogonal with up and down direction of the bar main part 23 of bar portion 21 is in close to the shape of semicircle or than by round arc The big shape of the semicircle that chord surrounds.In addition, bar main part 23 has the area in the section orthogonal with up and down direction with close Base part 10 and incremental form.Moreover, the outer surface (top end face) of the upper end of bar main part 23 is formed as dome shape.

In this case, the bar upper end (bar top) for being configured at extreme higher position of bar portion 21 configures on mechanical direction (MD) Center on the mechanical direction of bar portion 21.In addition, the bar upper end is configured at the friendship of bar portion 21 on crisscross (CD) It pitches the center on direction and aftermentioned hook is arranged between the position in face 24.

The bar main part 23 of bar portion 21 have the flat hook arranging face 24 configure for hook portion 31 and with up and down direction just It is in the bar outer peripheral surface of arc-shaped in the section of friendship.Face 24 is arranged from hook portion 31 underneath towards the formation of base part 10 in hook.In addition, hook Arranging face 24 is formed by single flat surface orthogonal with the upper surface of base part 10 and orthogonal with CD.

In addition, being arranged between face 24 and base part 10 and configuring in the hook of bar portion 21 in the snap-fit element 20 of the present embodiment 1 There is above-mentioned base end part 22.But, in the present invention, the hook of bar portion 21 is arranged face 24 and can also be formed with erecting from base part 10 Mode form the lower end position of bar portion 21.

In addition, in the main view of the snap-fit element 20 of the present embodiment 1 from the front side in the direction M (or rear side), such as Shown in Fig. 3, bar portion 21 has the bar back side 25 for being configured at the side opposite with hook arranging face 24.The bar back side 25 is in engaging member The size on the direction C that hook is arranged between face 24 and the bar back side 25 is with the upper surface far from base part 10 And the mode successively decreased is formed.In this case, the bar back side 25 includes upside curved face part 25a in the main view of snap-fit element 20, Convex (or arc-shaped) is configured at the upper end of bar portion 21；It is adjacent and concave with base part 10 with downside curved face part 25b It is configured at the lower end of bar portion 21；And inclination face 25c, be configured at upside curved face part 25a and downside curved face part 25b it Between.

Moreover, as shown in Fig. 5 (or Fig. 4), bar portion 21 is so that left and right in the side view of the snap-fit element 20 of the present embodiment 1 The mode that the size on MD between lateral margin is successively decreased with the upper surface far from base part 10 is formed.In this case, bar portion 21 Upside curved face part 25a is included in the side view of snap-fit element 20, and the upper end of bar portion 21 is configured in arc-shaped；Lower lateral curvature Facial 25b, the lower end for being configured at bar portion 21 adjacent and concave with base part 10；And inclination face 25c, it is configured at Between upside curved face part 25a and downside curved face part 25b.

The bar portion 21 of the present embodiment 1 is by with form as described above, so as to steadily have as follows Higher intensity: even if will for example become the non-woven fabrics of gynetype face connector towards 1 strength of forming face connector of the present embodiment 1 Pressing, bar portion 21 are also difficult to generate the deformation such as bending.Especially since the bar back side 25 of bar portion 21 is formed as described above, i.e., Make snap-fit element 20 by external force, bar portion 21 is also difficult in a manner of to 25 side of the bar back side (left side) of crisscross (CD) lodging Deformation.Thereby, it is possible to inhibit the deformation due to bar portion 21 and the situation inclined upward of hook portion 31, it is readily able to maintain Bail is suspended to the state of hook portion 31.

The form with the following characteristics of hook portion 31 of the present embodiment 1: the main outer peripheral surface with left and right sides is formed upward For dome shape, and the compression for being formed more smooth than main outer peripheral surface due to depressed and compression in aftermentioned forming process Face 32 is configured at the lower surface of hook portion 31.Refer to here, surface is smooth, it is concave-convex less on the surface, and then surface roughness is more It is small.

In addition, the lower surface of hook portion 31 refers to, the top of the slave hook portion 31 in the outer surface of hook portion 31 is configured to hook portion 31 In the lower end and downward or obliquely downward as the linking portion being connected with bar portion 21 (i.e., towards base part 10) The part of configuration.Especially in the case where the present embodiment 1, the lower surface of hook portion 31 is configured at the height on the top than hook portion 31 The position of position on the lower.

Further illustrate the form of the hook portion 31 of the present embodiment 1, the engaging shown in Fig. 4 of hook portion 31 of the present embodiment 1 When the side view of element 20 have following form: the linking portion being connected with bar portion 21 is rounded, and hook portion 31 with CD just The area in the section of friendship successively decreases with the flat bar portion 21 far from bar portion 21.

In other words, the shape of hook portion 31, which has, becomes the thin shape of head with far from bar portion 21.I.e., hook portion 31 is so that hook The mode that size (size in the front-back direction) in width direction is successively decreased with separate bar portion 21 is formed.Furthermore it is preferred that hook portion 31 so that the size (short transverse) in hook up and down direction is formed also with the mode successively decreased far from bar portion 21.

The upper surface of the hook portion 31 is formed as spherical (hemispherical).Therefore, either main view shown in Fig. 3 when hook portion 31 Upper edge shape or side view shown in Fig. 4 when hook portion 31 upper edge shape, all in being bent in a manner of heaving At the continuous arc-shaped (bending) of convex.In this case, be formed as the curvature at the upper surface of spherical hook portion 31 The radius of curvature that radius is set to the upper end of the ball shape than bar portion 21 is small.As a result, in the forming for making ring Yu the present embodiment 1 Face connector 1 is easy to make the hook portion 31 of snap-fit element 20 to extend through in ring when engaging, and therefore, ring and snap-fit element 20 can be made suitable Engage sharply.

In addition, as in Fig. 4 it can be seen that, the width dimensions (direction M) of the hook portion 31 are than the width dimensions of bar portion 21 (direction M) is small, and exposure has flat hook that face 24 is arranged on the outside of the width direction of hook portion 31.I.e., bar portion 21 is from 31 direction of hook portion The outside of width direction extends.It is easy to make snap-fit element when engaging ring with the forming face connector 1 of the present embodiment 1 as a result, 20 hook portion 31 extends through in ring, and can ensure the intensity of bar portion 21.

Especially in the present embodiment 1, in the hook portion 31 from projected direction side (right side) (referring to Fig. 4), hook portion 31 Upper surface or upper end edge radius of curvature be set to 0.01mm or more and be 0.5mm hereinafter, be preferably set to 0.05mm with It above and is 0.1mm or less.In addition, in the bar portion 21 from the direction M (referring to Fig. 3), or in the bar portion 21 from the direction C (referring to Fig. 4 or Fig. 5), the upper surface of bar portion 21 or the radius of curvature of upper end edge are than the radius of curvature at the upper surface of hook portion 31 Greatly, it and is set to 0.01mm or more and is 0.5mm hereinafter, being preferably set to 0.05mm or more and being 0.1mm or less.

Moreover, in the present embodiment 1, in the hook portion 31 from the direction M (especially as shown in Figure 7 from rear side Amplify hook portion 3 come when observing), the top end part 33 of hook portion 31 has the shape in substantially arc-shaped.In this case, hook portion 31 The radius of curvature of the outer surface of top end part 33 be set in 0.06mm or more and be 0.18mm or less range in, preferably set in 0.12mm or more and be 0.15mm or less range in.

In addition, as described so, the lower surface of hook portion 31 has the compressing surface 32 for being formed as concave shape.Therefore, in Fig. 3 institute When the main view for the snap-fit element 20 shown, although the upper edge of hook portion 31 is in the arc-shaped of convex as described above, hook portion 31 Lower ora terminalis is in the form of inside square slight curvature such non-convex shape in a concave shape.The lower ora terminalis of hook portion 31 so has and becomes The non-convex shape of concave shape, to ring can be made to be easy to be hooked in compared with the case where for example lower ora terminalis is convex shape Hook portion 31 (is easy to engage).Moreover, being easy to steadily maintain the fastening state of ring.In addition, in the present embodiment 1, hook portion 31 Lower ora terminalis can also in the main view of snap-fit element 20 with and linearly tilting in the form of non-convex shape.

In this case, although the upper surface of hook portion 31 is formed as uncompressed face, but it is aftermentioned 1st die cavity 56 of duplication Die cavity face (etching face) and formed, therefore, be formed as the smaller smooth face of surface roughness.

Be configured at the lower surface of hook portion 31 compressing surface 32 be in aftermentioned forming process on one side it is depressed compression and Plastic deformation (strain) is generated to be nuzzled up on one side and formed.Therefore, the compressing surface 32 of hook portion 31 is not replicate the 1st die cavity 56 The non duplicate surface in die cavity face forms also more smooth and bright than the upper surface of hook portion 31.Therefore, the compressing surface 32 of hook portion 31 compares hook Therefore the other faces in portion 31, which reflect more light, also locally sees gloss in compressing surface 32.

Moreover, the smooth compressing surface 32 of hook portion 31 be it is depressed compression and formed, it is therefore contemplated that with hook portion 31 Upper surface locally becomes larger compared to hardness.If harder compressing surface 32 is configured at the lower surface of hook portion 31, hook portion 31 is being utilized When capturing and (maintain) ring of gynetype face connector, it is able to suppress the deformation of hook portion 31 and ring and hook portion 31 is steadily maintained to block The state closed.

Moreover, in the snap-fit element 20 of the present embodiment 1, although bar portion 21 has in front-rear direction (bar as described above The width direction in portion 21) on symmetrical shape, but hook portion 31 have it is asymmetric in front-rear direction (width direction of hook portion 31) Shape.

I.e., when the side view of snap-fit element 20 either shown in Fig. 4 or snap-fit element 20 shown in Fig. 6 is bowed Apparent time, hook portion 31 are all formed as being configured at the first half in front on the basis of the center of front-rear direction (MD) and being configured at The latter half of different forms being asymmetrically to each other at rear.

Especially, it is provided with above-mentioned compressing surface 32 in the lower surface of the hook portion 31 of the present embodiment 1, therefore, there is hook portion Such form is reversed in 31 lower half.Therefore, the rear end of the compressing surface 32 in hook portion 31 is configured at than the compressing surface 32 The against the top higher position (position far from base part 10) in front end so that in snap-fit element 20 for example shown in Fig. 3 Main view when hook portion 31 in the rear end of compressing surface 32 be blocked and do not see.

In the present embodiment 1, as shown in fig. 6, the hook that face 24 is arranged farthest away from the flat hook of bar portion 21 in hook portion 31 Top end part is configured at the position of the center of the front-rear direction (MD) than hook portion 31 rearward.In this case, hook portion 31 Hook top end part have from going out side (right side) from the unciform process in the direction C when snap-fit element 20 by the upper surface of hook portion 31 and compressing surface 32 clip and the hook top end face 34 that is formed.The hook top end face 34 is divided into upper surface and the compressing surface 32 of hook portion 31 by crest line.

In addition, upper surface and bar portion in the snap-fit element 20 of the present embodiment 1, as shown in Fig. 2~Fig. 5, in hook portion 31 Step (stage portion) 26 is provided between 21 upper surface.Utilize the step 26, that side of hook portion 31 linked with bar portion 21 The height and position (position in up and down direction) of upper surface of base end part 22 be arranged to, hook portion 31 higher than the upper surface of bar portion 21 A part be formed as protruding upwards relative to bar portion 21.

In addition, the specific size of snap-fit element 20 is set as follows in the present embodiment 1.

Such as in the up-down direction, the maximum height size H1 of the upper surface away from base part 10 of snap-fit element 20 is set to 0.1mm or more and be 1.5mm hereinafter, being preferably set to 0.2mm or more and being 1.0mm or less.In this case, bar portion 21 away from The maximum height size H2 of the upper surface of base part 10 is set to 0.1mm or more and is 1.5mm hereinafter, being preferably set to 0.2mm It above and is 1.0mm or less.In addition, the height of the step 26 formed between the upper surface of hook portion 31 and the upper surface of bar portion 21 Size H3 is set to 0.01mm or more and is 0.3mm or less.Moreover, the upper surface away from base part 10 at the top end part of hook portion 31 Up and down direction height dimension H4 it is lower than the height and position of the upper end of bar portion 21, and be set to 0.1mm or more and be 1.5mm Hereinafter, being preferably set to 0.2mm or more and being 1.0mm or less.

In the direction M (width direction of snap-fit element 20), full-size (the i.e., base of bar portion 21 in the direction M of bar portion 21 The size in the direction M at end 22) L1 is set to 0.1mm or more and is 1.5mm hereinafter, being preferably set to 0.2mm or more and being 1.0mm following.In addition, the full-size L2 in the direction M of hook portion 31 is set to 0.01mm or more and is 1.0mm hereinafter, it is preferred that setting Determine into 0.05mm or more and is 0.5mm or less.

On the direction C, the full-size (the i.e., size in the direction C at the base end part 22 of bar portion 21) in the direction C of bar portion 21 W1 is set to 0.1mm or more and is 1.5mm hereinafter, being preferably set to 0.2mm or more and being 1.0mm or less.Moreover, hook portion 31 Full-size (size in the direction C in face 24 i.e., is arranged to the hook of bar portion 21 from the top of the hook portion 31) W2 in the direction C is set to 0.01mm or more and be 1.0mm hereinafter, being preferably set to 0.05mm or more and being 0.5mm or less.

Moreover, the above-mentioned inclination face 25c of bar portion 21 relative to the tilt angle of up and down direction be set to 5 ° or more and It is 20 ° or less.In addition, as shown in figure 3, it is preferred that the full-size W2 in the above-mentioned direction C of hook portion 31 is set to the lower end of hook portion 31 (bar portion 21 is at the lower end position of hook portion 31 for the size of the line segment parallel with the direction C between the hook of bar portion 21 arranging face 24 The direction C size) W3 less than half.In other words, preferred size W3 is set to twice of the size of full-size W2 or more. By making size W2 and size W3 that there is such relationship, when snap-fit element 20 is formed as described later, Neng Goucong The 1st die cavity 56 in the spherical back-off shape for being formed in the 1st plate 55a makes the hook portion 31 with compressing surface 32 as described above on one side Deformation is on one side formed the hook portion 31.In addition, the intensity that hook portion 31 has lesser hook head and bar portion 21 can be made Higher forming face connector 1.Moreover, in this case, as shown in figure 4, it is preferred that the maximum ruler in the above-mentioned direction M of hook portion 31 Very little L2 is set to less than half of the size L3 in M direction of the bar portion 21 at the lower end position of hook portion 31.In other words, preferred size L3 is set to twice of the size of full-size L2 or more.Thereby, it is possible to which the hook portion 31 with compressing surface 32 is formed, and And it can properly ensure the intensity of bar portion 21.

In addition, in the forming face connector 1 of the present embodiment 1, above-mentioned multiple snap-fit elements 20 shown in FIG. 1 to FIG. 6 Stand up base part 10.But, in the present invention, it may not be the whole engaging members for standing up base part 10 Part 20 is of similar shape.

For example, size in each of snap-fit element 20 in the present embodiment 1 is all very small, therefore, there is also be difficult to make Whole snap-fit elements 20 unanimously at identical shape the case where.In addition, stating such forming device 51 after use and carrying out When the manufacture of forming face connector 1, even if snap-fit element 20 is formed from the forming die cavity of identical shape, there is also Make the shape (the especially shape of hook portion 31) of snap-fit element 20 and other snap-fit elements 20 since various main causes are superimposed Different situations.

Therefore, in the present invention, a part of snap-fit element stood up in whole snap-fit elements of base part is The snap-fit element for having feature of the invention.In this case, the snap-fit element for having feature of the invention is set with erectting It is placed in 10% or more ratio of the number of whole snap-fit elements of base part, preferably with 25% or more ratio, especially excellent Choosing is formed with 50% or more ratio.For having the ratio of the snap-fit element of such feature of the invention, for rear The forming face connector 2,3 for the embodiment 2 and 3 stated is same.

Then, the forming face connector of the present embodiment 1 as described above is manufactured to manufacturing device 50 shown in Fig. 8 is used 1 method is illustrated.

The manufacturing device 50 of the forming face connector 1 includes forming device 51, and it is (aftermentioned that face connector 1 is formed Interim forming face connector) forming；With pick-up roller 54, the forming face connector 1 after forming is removed from forming device 51, And make a part deformation of snap-fit element 20.

In addition, by the forming face connector that the forming device 51 of Fig. 8 shapes being had to before hook portion implementation pressing compression Snap-fit element forming face connector.Therefore, the forming of the state before being shaped by forming device 51 and being removed from mould wheel 52 The shape of face connector and the shape of forming face connector 1 shown in FIG. 1 are slightly different.In other words, to the aftermentioned of mould wheel 52 Die cavity (i.e., the 1st die cavity 56, the 2nd die cavity 57 and auxiliary die cavity 58) filled synthetic resin by and formed and removed from mould wheel 52 The shape of the snap-fit element of state before and the shape of snap-fit element 20 shown in FIG. 1 are slightly different.Therefore, it is shelled from mould wheel 52 From before forming face connector and snap-fit element can also be referred to as interim forming face connector and interim snap-fit element.This Outside, hereinafter, illustrate in order to prevent it is tediously long, misunderstand, " interim forming face connector " and " interim snap-fit element " also referred to as For " forming face connector 1 " and " snap-fit element 20 ".

Forming device 51 shown in Fig. 8 includes mould wheel 52, to a direction (in the accompanying drawings, counterclockwise) driving rotation Turn；It with extrusion nozzle 53, is relatively configured with the circumferential surface of mould wheel 52, the synthetic resin material after melting is continuously squeezed out.

In order to which the snap-fit element 20 to forming face connector 1 is formed, in the mould wheel 52 for being configured at forming device 51 Outer circumferential surface section is formed with the multiple die cavitys for having scheduled shape.As shown in figure 9, the mould wheel 52 is by that will have required thickness The metal plate 55 of multiple discoid (or cyclic annular) of degree is laminated in a manner of along the overlapping of the rotation axis direction of mould wheel 52, To be formed as cylindric.In addition, each metal plate 55 includes the 1st lamination surface, it is orthogonal with rotation axis direction, and formed The face of the side (being inboard in Fig. 9) in rotation axis direction；It is orthogonal with rotation axis direction with the 2nd lamination surface, and Form the face of the other side (being front side in Fig. 9) in rotation axis direction.

As shown in Figure 10, the metal plate 55 of mould wheel 52 includes the 1st plate 55a, is formed with the hook portion 31 to snap-fit element 20 The 1st die cavity 56 being formed；2nd plate 55b is formed with the 2nd die cavity 57 that the bar portion 21 of snap-fit element 20 is formed； And multiple 3rd plate 55c, it is configured as partition.The 1st plate 55c of plate 55a~the 3rd by along rotation axis direction one by one It stacks gradually.

1st die cavity 56 is included to the 1st plate 55a that hook portion 31 is formed, it is hemispherical recessed in the of the 1st plate 55a 1 lamination surface, for hook portion 31 to be formed；It is for a part of the base end part 22 to bar portion 21 with auxiliary die cavity 58 It is formed and is formed.1st die cavity 56 is medially configured at from the outer peripheral surface of the 1st plate 55a towards the radial of the 1st plate 55a From the outer peripheral surface of the 1st plate 55a with same Fig. 1 it is equal shown in interval between hook portion 31 and base part 10 corresponding distance separate Position.I.e., the 1st die cavity 56 is not open in the outer peripheral surface of the 1st plate 55a.

The radius of curvature of hemispheric 1st die cavity 56 is set to the curvature at the upper surface of hook portion 31 shown in Fig. 1 etc. The size of radius.Thus, the radius of curvature of the 1st die cavity 56 of the present embodiment 1 be set to 0.01mm or more and be 0.5mm hereinafter, It is preferably set to 0.05mm or more and is 0.1mm size below.In addition, the 1st mould of the 1st lamination surface opening in the 1st plate 55a Chamber 56 is capable of forming the step 26 between the upper surface of the hook portion 31 of snap-fit element 20 and the upper surface of bar portion 21.I.e., it is formed are as follows: The radial innermost position in the 1st lamination surface opening of 1st die cavity 56 is configured at than the 2nd die cavity 57 in the 2nd plate 55b Radial inside is more leaned in the radial innermost position of the 2nd lamination surface opening.Therefore, the 1st plate 55a and the 2nd plate 55b it Between be formed with make the 2nd plate 55b the 2nd be laminated towards the 1st die cavity 56 exposure step 59.

In addition, the auxiliary die cavity 58 of the 1st plate 55a is with recessed the 1st lamination surface in the 1st plate 55a and the 1st plate 55a's The mode of outer peripheral surface opening is formed.In this case, it is configured using between the 1st die cavity 56 of the 1st plate 55a and auxiliary die cavity 58 The hook of flat the 1st lamination surface bar portion 21 that forms snap-fit element 20 face 24 is arranged.

Lesser 1st die cavity 56 and auxiliary die cavity 58 of such 1st plate 55a is by the 1st stacking to the 1st plate 55a Face carries out half-etching processing and is formed.It is processed by using such half-etching, it can be by the 1st die cavity 56 and auxiliary die cavity 58 Be formed as scheduled shape.Moreover, each die cavity face of the 1st die cavity 56 and auxiliary die cavity 58 is by smooth curved etching face shape At.Thereby, it is possible to by the outer surface for being not subject to aftermentioned pressing compression of hook portion 31 formed thereby, (especially, hook portion 31 is upper Surface), a part of the base end part 22 of bar portion 21 be formed as the smaller smooth face of surface roughness.

Have the 2nd plate 55b that bar portion 21 is formed with the radial direction from the outer peripheral surface of the 2nd plate 55b towards the 2nd plate 55b The 2nd die cavity 57 of mode continuously recessed the 2nd lamination surface in the 2nd plate 55b that extends of inside.2nd die cavity 57 and the 1st plate The auxiliary die cavity 58 of 55a is used to form the bar portion 21 of snap-fit element 20 together.Thus, the 2nd die cavity 57 so that the 2nd die cavity 57 week To size from the outer peripheral surface of the 1st plate 55a towards radial inside and the mode successively decreased is formed, so as to bar portion 21 in addition to Shape except the part shaped by auxiliary die cavity 58.

In addition, the side that the 2nd die cavity 57 of the present embodiment 1 is spherical with the die cavity face for being configured at radial innermost part Formula is formed.The 2nd die cavity 57 of 2nd plate 55b is formed and the 2nd lamination surface to the 2nd plate 55b carries out half-etching processing 's.The die cavity face of the 2nd die cavity 57 is formed by smooth curved etching face as a result,.It therefore, can be by bar portion 21 formed thereby Outer surface and the upper surface of hook portion 31 be identically formed the smooth face smaller for surface roughness.

The 3rd plate 55c of the present embodiment 1 is formed by the discoid plate that die cavity is not formed.In addition, the thickness of the 3rd plate 55c (size in rotation axis direction) is spent according to the shape on crisscross (CD) of the snap-fit element 20 that forming face connector 1 is arranged It is set at spacing.

So that the 1st lamination surface of the 1st plate 55a and the 2nd lamination surface of the 2nd plate 55b are facing, make the 1st of the 2nd plate 55b the layer The 2nd lamination surface of folded face and the 3rd plate 55c are facing, make the 2nd lamination surface phase of the 1st lamination surface and the 1st plate 55a of the 3rd plate 55c 1st plate 55a~the 3rd plate 55c as described above is successively laminated and is fixed repeatedly by the mode faced.As a result, with the 1st plate 55a and the 2nd plate 55b be laminated adjacent to each other and the 1st die cavity 56 of the 1st plate 55a and auxiliary die cavity 58 and the 2nd plate 55b the 2nd The state that die cavity 57 has been connected to forms the mould wheel 52 of the present embodiment 1.

For the mould wheel 52 of such the present embodiment 1, it is shown in FIG. 10 on the mechanical direction (MD) of bar portion 21 Along the cross-sectional view of rotation axis direction parting die wheel 52 at heart position.In the cross-sectional view of the Figure 10, for snap-fit element The 20 die cavity entirety being formed, by the 1st lamination surface of the 1st plate 55a at the position adjacent with the radial outside of the 1st die cavity 56 The size on rotation axis direction (CD) between the die cavity face of the 2nd die cavity 57 of the 2nd plate 55b is set as D1.In addition, by the 1st Rotation between the die cavity face of 2nd die cavity 57 in the die cavity face and the 2nd plate 55b of the position most deep away from the 1st lamination surface of die cavity 56 Size on axis direction (CD) is set as D2.

In this case, in the outer circumferential surface section of the mould wheel 52 of the present embodiment 1, it is less than above-mentioned dimension D 1 and is located at than the ruler Very little D1 is formed with the forming die cavity of snap-fit element 20 by the above-mentioned dimension D 2 of the position of radial inside.1st plate as a result, The 1st die cavity 56 of 55a is being formed as aftermentioned interim forming face connection from the position that the outer peripheral surface of mould wheel 52 has separated inwardly Part can not in a manner of keeping its its shape invariance molding back-off shape.

Moreover, in the 1st plate 55a with the die cavity face for making the 1st die cavity 56 and the substantially orthogonal mode of the 1st lamination surface to there is corner angle Shape be formed with circle-shaped ridgeline.Circular arc portion in the circle-shaped ridgeline, being configured at radial outside Ridgeline is configured to the lower surface office when extracting snap-fit element 20 from the die cavity of mould wheel 52 by the hook portion 31 of snap-fit element 20 The edge part 60 for pressing to portion and compressing it.

In addition, the mould wheel 52 in the present embodiment 1 is provided with the rotation (not shown) driving for rotating mould wheel 52 to a direction Roller.Moreover, can also the coolant jacket (not shown) for making coolant liquid circulate be set to mould wheel in the mould wheel 52 of the present embodiment 1 52 inside.Thereby, it is possible to efficiently cool down the forming face connector 1 shaped by the outer circumferential surface section of mould wheel 52.

Pick-up roller 54 shown in Fig. 8 has (to be faced from upper and lower clamping by the forming face connector 1 of the week face forming of mould wheel 52 When forming face connector) and pull the upside niproll 54a and downside folder of the forming face connector 1 (interim forming face connector) Hold this pair of rolls of roller 54b.In addition, being pressed from both sides in the outer circumferential surface section of upside niproll 54a being in contact with forming face connector 1 and downside The outer circumferential surface section being in contact with forming face connector 1 for holding roller 54b is provided with to be made of not elastomers such as polyurethane elastomers The superficial layer of diagram.

Upside niproll 54a and downside niproll 54b are oppositely disposed at predetermined spaced intervals.Upside niproll 54a Rotated at a predetermined rate to scheduled direction respectively with downside niproll 54b, so as to one side by forming face connector 1 from Mould wheel 52 is continuously removed, and on one side downstream successfully sends out forming face connector 1.

State such manufacturing device 50 in use and in the case where the manufacture of face connector 1 is formed, firstly, will melt Synthetic resin material after melting continuously is sprayed from extruding jet nozzle 53 towards the outer peripheral surface of mould wheel 52.At this point, 52 Xiang Yifang of mould wheel It is rotated to driving.Thus, by the circumferential surface resin melt extrusion material to mould wheel 52, by synthetic resin material be filled continuously in Spatial portion between continuously extruded nozzle 53 and the mould wheel 52 of rotation, also, synthetic resin material is also arrived into mould wheel 52 to setting Outer circumferential surface section each forming filling in die cavity (spatial portion).

At this point, auxiliary die cavity 58 and 2nd of the synthetic resin material after melting from the periphery of mould wheel 52 towards the 1st plate 55a The 2nd die cavity 57 of plate 55b flows into, moreover, the 2nd die cavity 57 via the 2nd plate 55b is flowed into the 1st die cavity 56 of the 1st plate 55a.By This, the space segment of the snap-fit element forming die cavity formed by the 1st die cavity 56, the 2nd die cavity 57 and auxiliary die cavity 58 is closed It is filled up at resin material.

Next, as described above by continuously between extruding jet nozzle 53 and mould wheel 52 fill and be filled into mould wheel 52 Each die cavity in synthetic resin material on one side rotated to a direction mould wheel 52 outer peripheral surface carrying, be cooled to ratio on one side Low-melting temperature.It shapes as a result, and multiple snap-fit element (temporary cards corresponding to the shape of die cavity of mould wheel 52 is set Close element) erectting setting, (interim forming face connects to the forming face connector of the base part 10 shaped on the outer peripheral surface in mould wheel 52 Fitting).I.e., the resin shaped at this time is filled into the snap-fit element (interim snap-fit element) of the state in die cavity though saving sketch map Show, but there is above-mentioned bar portion 21 and from the bar portion 21 along the hook portion (interim hook portion) of the direction C semi-spherical shape outstanding.Separately Outside, the outer surface including upper and lower surfaces of the hook portion (interim hook portion) of the semi-spherical shape formed thereby is by the 1st die cavity 56 Die cavity face formed.

It is upper after the forming face connector (interim forming face connector) as made of the outer circumferential surface section forming of the mould wheel 52 The pick-up roller 54 stated continuously and is forcibly removed (by compulsion) from the outer circumferential surface section of mould wheel 52.At this point, being formed in mould wheel 52 Outer circumferential surface section die cavity in, the 1st die cavity 56 of the 1st plate 55a is formed as being buckled to shape as described so.

Therefore, as shown in figure 11, forming face connector 1 is picked the pulling of roller 54, to block made of die cavity internal shaping The hook portion of the semi-spherical shape of element (interim snap-fit element) is closed when by from die cavity extraction, it is upper by being formed in the 1st plate 55a The edge part 60 stated presses from the lower face side of hook portion and is compressed.At this point, mould wheel 52 is rotated along mechanical direction, therefore, by Hook portion to pressing is also reversed such external force along mechanical direction by by the edge part 60 of the 1st plate 55a.

Especially in the present embodiment 1, it is formed with the 2nd plate 55b as described so between the 1st plate 55a and the 2nd plate 55b The 2nd stacking towards the such step 59 of the 1st die cavity 56 exposure.Therefore, the hook of the semi-spherical shape of interim snap-fit element can be made Portion is more difficult to extract from the 1st die cavity 56 of the 1st plate 55a.Thereby, it is possible to the pressing of edge part 60 using the 1st plate 55a and compress hook The lower surface in portion.

Utilizing the edge part 60 of the 1st plate 55a in a degree of range (body while extracting interim snap-fit element Product) in pressing and after having compressed the hook portion of semi-spherical shape, the bar portion 21 of snap-fit element 20 is to roll the side of falling to the bar back side 25 (flexible deformation) is slightly distorted in formula, so that hook portion is easy to extract from the 1st die cavity 56.In addition, simultaneously, utilizing the 1st plate 55a's on one side Edge part 60 further presses and the lower surface for hook portion of nuzzling up, and on one side extracts hook portion from the 1st die cavity 56 of the 1st plate 55a.Such as The lower surface of the hook portion of this semi-spherical shape is pressed and compressed by the edge part 60 of the 1st plate 55a, and by the edge of the 1st plate 55a Portion 60 nuzzles up, to form as described above smooth and harder compressing surface 32 in the lower surface of hook portion 31.

Moreover, hook portion is on one side from edge part 60 by the outer of torsion as described above when hook portion is extracted from the 1st die cavity 56 Power is pressed by the edge part 60 on one side.Therefore, hook portion in a manner of from bar portion 21 towards hook top updip upward inclination or It integrally deforms in curved manner, also, is deformed into the asymmetrically shape on the direction M.Moreover, by hook portion from the 1st plate After the 1st die cavity 56 of 55a is pulled out, snap-fit element is continuously pulled, thus by the whole die cavity from mould wheel 52 of snap-fit element It extracts.

Also, from the removing of mould wheel 52 and forming face connector that hook portion deforms is and then by the mutual with pre- of pick-up roller 54 Determine the upside niproll 54a configured spaced apartly and imported between the niproll 54b of downside, is clamped in the upside niproll Between 54a and downside niproll 54b.At this point, as described above by from the die cavity of mould wheel 52 extract and from bar portion 21 upward The hook portion deformed is pressurized from above by by upside niproll 54a.Thereby, it is possible to force the hook portion deformed in a manner of updip Property (energetically) be plastically deformed downwards so that the hook portion is towards the direction C.The present embodiment 1 shown in FIG. 1 is manufactured as a result, Forming face connector 1.

Later, it is indulged on the mechanical direction passed through between the upside niproll 54a of pick-up roller 54 and downside niproll 54b Long forming face connector 1 is conveyed towards cutting portion (not shown), is cut into scheduled length and be recovered by the cutting portion. Alternatively, being directly in that web-like winding is recovered in recycling roll etc. with the state of the forming face connector 1 of lengthwise.

The forming face connector 1 of the present embodiment 1 manufactured as described above includes bar portion 21, relatively thick from base part 10 Erect setting in ground；It is prominent from the upper end of bar portion 21 to the direction C with small hook portion 31.Moreover, blocking from the direction C (referring to Fig. 4) when closing the hook portion 31 of element 20, hook portion 31 is formed as asymmetric in the width direction (MD) of hook portion 31.It is formed with The snap-fit element 20 of the present embodiment 1 of such hook portion 31 has with previous J shape, palm tree and mushroom completely not The form of same feature.Also, the forming face connector 1 of the snap-fit element 20 for the form having the feature that has previous Forming face connector in the property of following such feature that can not obtain.

It specifically describes, in the forming face connector 1 of the present embodiment 1, the bar portion 21 of snap-fit element 20 forms thicker, And the upper surface (top end face) of bar portion 21 is spherical.Therefore, it can be improved the intensity of bar portion 21, further, it is possible to make snap-fit element 20 skin sense of touch is good.

In this way, since the intensity of bar portion 21 is higher, even if the forming face connector 1 of the present embodiment 1 is strongly pressed on example Such as gynetype face connector by biggish pressing force, bar portion 21 is also difficult to be bent, and can stably keep snap-fit element 20 Shape.Moreover, thereby, it is possible to the forming face connector 1 of the present embodiment 1 is pressed into deeper position relative to gynetype face connector It sets, in other words, each snap-fit element 20 of forming face connector 1 can be deeply inserted into the root of the ring of gynetype face connector Near.As a result, the forming face connector 1 of the present embodiment 1 be easier to capture gynetype face connector ring, therefore, can with it is female Type face connector successfully and steadily engages.

In addition, forming face connector 1 can be made to connect relative to gynetype face since the intensity of bar portion 21 is higher as described above The shear strength of fitting increases.Here, shear strength refers to, in gynetype face connector be bonded to forming face connector 1 and two In the state that person has engaged, by forming face connector 1 and gynetype face connector with along the length direction of forming face connector 1, Engaging intensity when the mode that width direction is relatively staggered has pulled.

Moreover, in the snap-fit element 20 of the present embodiment 1, minimum hook portion 31 is from the upper end of bar portion 21 towards the direction C It is prominent.Moreover, the lower surface of the hook portion 31 of snap-fit element 20 as described so locally have formed than hook portion 31 upper table The smooth compressing surface 32 in face.Therefore, when engaging the ring of gynetype face connector with the forming face connector 1 of the present embodiment 1, energy Enough interannulars that snap-fit element 20 is smoothly inserted into gynetype face connector, further, it is possible to make the hook portion of ring Yu snap-fit element 20 31 steadily engage.

Moreover, because the lower surface of hook portion 31 has harder and smooth compressing surface 32, even if ring is pulled upwards, hook Portion 31 itself is also difficult to deform upward.Moreover, bar portion 21 is relatively thick and its intensity is higher, therefore, bar portion 21 can also have itself Prevent hook portion 31 from deforming upward to effect.On this basis, in the forming face connector 1 of the present embodiment 1, the upper table of hook portion 31 Face is arranged higher than the upper surface of bar portion 21 by step 26.The ring engaged as a result, with snap-fit element 20 is easy to be hooked in hook Step 26 between portion 31 and bar portion 21.

As a result, in the forming face connector 1 of the present embodiment 1, be hooked in the hook portion 31 of snap-fit element 20 and with engage The ring that the hook portion 31 of element 20 engages is difficult to disengage from the snap-fit element 20.Therefore, it is connected according to the forming face of the present embodiment 1 Part 1 can steadily obtain the higher peel strength relative to gynetype face connector.Here, peel strength refers to, in gynetype Face connector is bonded to forming face connector 1 and in the state that the two engages, and forming face connector 1 is connected with gynetype face Engaging intensity when part has pulled in such a way that the short transverse along forming face connector 1 is relatively pulled open.

As described above, since the forming face connector 1 of the present embodiment 1 has the form in previous not found feature, Forming face connector 1 as the new type having the following advantages that simultaneously: bar portion 21 is difficult to be bent, obtains good skin touching The advantage that sense；Has the advantage that higher peel strength, shear strength relative to gynetype face connector.

In this way, peel strength, shear strength be higher and the forming face connector 1 of the good the present embodiment 1 of skin sense of touch is special It is not suitble to be used in the keeping device such as the diaper of disposable diaper, infant encloses trousers, protects the joint of trick, waist with tightly The commodity that waist clothing, gloves etc. are dismounted relative to body.Moreover, this previous unexistent new forming face connection of the present embodiment 1 Part 1 is provided and being appended to previous forming face connector, can increase the variation of forming face connector.As a result, easily In more suitably coping with various types of gynetype faces connector (non-woven fabrics).

In addition, the forming face connector 1 of the above embodiments 1 is formed as only having the hook portion 31 of each snap-fit element 20 to the left Direction snap-fit element 20 outstanding in right direction (CD).But, forming face connector of the invention can also be formed as only Hook portion with for example each snap-fit element in the lateral direction in other direction snap-fit element outstanding.In addition, as shown in figure 12, Forming face connector of the invention is also possible to be formed with the direction of hook portion 31 in the lateral direction engaging member outstanding with mixing The forming face connector 1a of the other direction of part 20 and hook portion 31 in the lateral direction snap-fit element 20a outstanding.In the situation Under, in the present invention, the snap-fit element 20 outstanding of a direction in the lateral direction and other direction in the lateral direction are outstanding The configuration of snap-fit element 20a, each snap-fit element 20, the arranging number of 20a and ratio etc. can be selected arbitrarily.

Embodiment 2

Figure 13 is the perspective view for indicating the forming face connector of the present embodiment 2.Figure 14 is only to indicate forming face connector The perspective view of snap-fit element.Figure 15~Figure 17 is main view, right, side view and the left side view of snap-fit element respectively.

In the forming face connector 2 of the present embodiment 2, compared with the forming face connector 1 of embodiment 1 above-mentioned, card Closing element 20b keeps hook portion 31b different relative to the opposite position of bar portion 21 and is formed.On the other hand, the shape of base part 10, Shape, the shape of bar portion 21 of the base part 10 of the shape and embodiment 1 above-mentioned of the shape and hook portion 31b of bar portion 21 itself And the shape of hook portion 31 is same.

Thus, in the present embodiment 2 and aftermentioned embodiment 3, mainly to the forming face connector with embodiment 1 above-mentioned 1 different part or position are illustrated, substantially the same with the forming face connector 1 of embodiment 1 above-mentioned for having The part or component of form or structure, make to be denoted by the same reference numerals, so that the description thereof will be omitted.

The forming face connector 2 of the present embodiment 2 has laminal base part 10 and stands up the upper of base part 10 Multiple snap-fit element 20b on surface.Base part 10 and the base part 10 of embodiment 1 above-mentioned are identically formed.

Each snap-fit element 20b of the present embodiment 2 is respectively provided with: bar portion 21, is erected from base part 10；With 1 hook portion 31b, it is prominent along crisscross (CD) from the upper end of bar portion 21.In the case where the present embodiment 1, each snap-fit element 20b Hook portion 31b it is all prominent from bar portion 21 towards crisscross identical direction (right side).

The bar portion 21 of the present embodiment 2 and the bar portion 21 of embodiment 1 above-mentioned are identically formed.

The hook portion 31b itself of the present embodiment 2 and the hook portion 31 of embodiment 1 above-mentioned are identically formed.I.e., the present embodiment 2 Hook portion 31b be upward formed as dome shape with the main outer peripheral surface of left and right sides, also, in the lower surface of hook portion 31b Configured with the compressing surface 32 for being formed more smooth than main outer peripheral surface due to depressed in forming process and compression.In addition, this The hook portion 31b of embodiment 2 has the asymmetrically shape in front-rear direction (width direction of bar portion 21).

On the other hand, opposite position and above-mentioned embodiment 1 of the hook portion 31b in the present embodiment 2 relative to bar portion 21 The case where it is different.In the snap-fit element 20 of embodiment 1 for example above-mentioned, in the upper surface of hook portion 31 and the upper surface of bar portion 21 Between be provided with step 26.But, in the snap-fit element 20b of the present embodiment 2, a part of the upper surface of hook portion 31b is from bar The upper surface in portion 21 continuously configures, the not set implementation above-mentioned between the upper surface of hook portion 31b and the upper surface of bar portion 21 Step 26 as example 1.

Hook portion 31b is formed in such a way that the side (right side) from bar portion 21 towards the direction C is outstanding.In this case, i.e., The upper surface of the upper surface and bar portion 21 that make hook portion 31b continuously configures, the portion adjacent with bar portion 21 of the upper surface of hook portion 31b Divide and the part adjacent with hook portion 31b of the upper surface of bar portion 21 is with mutually different angle (direction) configuration (in other words, hook The portion adjacent with hook portion 31b of the upper surface of the tangential direction and bar portion 21 of the upper surface of the portion 31b part adjacent with bar portion 21 The tangential direction divided is different).

Therefore, in the main view (Figure 15) of snap-fit element 20b, sometimes in the upper of the upper surface of hook portion 31b and bar portion 21 Configured with boundary portion as pit between surface.In addition, sometimes also due to the difference of the projected direction of hook portion 31b, not formed Boundary portion as described above, and the upper surface for being created as a part and bar portion 21 of the upper surface of hook portion 31b is glossily continuous.

In this case, the radius of curvature at the upper surface (upper edge of hook portion 31b) of hook portion 31b and embodiment above-mentioned 1 the case where, is similarly configured to 0.01mm or more and is 0.5mm or less (preferably 0.05mm or more and be 0.1mm or less).Bar The song at upper surface of the radius of curvature than hook portion 31b at the upper surface (upper edge of the bar portion 21 when main view or side view) in portion 21 Rate radius is big, and is configured to 0.01mm or more and is 0.5mm or less (preferably 0.05mm or more and be 0.1mm or less).

The forming face connector 2 of the present embodiment 2 with snap-fit element 20b as described above and embodiment 1 above-mentioned Situation similarly, is manufactured using manufacturing device 50 as shown in Figure 8.Used in the manufacturing device 50 of the present embodiment 2 In mould wheel 52, the forming that is formed to shape snap-fit element 20b in the outer circumferential surface section of mould wheel 52 die cavity have with it is above-mentioned The case where embodiment 1 different shape.

I.e., the mould wheel 52 of the present embodiment 2 has is laminated in a manner of along the overlapping of the rotation axis direction of mould wheel 52 Multiple discoid metal plates 55.Although 55 illustration omitted of metal plate of the mould wheel 52, the 1st plate is included, is formed useful In the 1st die cavity of the semi-spherical shape of the hook portion 31b of forming snap-fit element 20b and one of the base end part 22 for shaping bar portion 21 The auxiliary die cavity divided；2nd plate 55b is formed with the 2nd die cavity 57 of the bar portion 21 for shaping snap-fit element 20b；And it is multiple 3rd plate 55c is configured as partition.

In this case, the 2nd plate 55b and the 3rd plate 55c of the present embodiment 2 and the 2nd plate 55b of embodiment 1 above-mentioned and the 3 plate 55c are identical.On the other hand, the hook portion 31b of snap-fit element 20b is not formed in the 1st die cavity that the 1st lamination surface of the 1st plate is open Upper surface and bar portion 21 upper surface between step.I.e., the radial most inner side in the 1st lamination surface opening of the 1st die cavity The opposite position landform in the radial innermost position in the 2nd lamination surface opening of position and the 2nd die cavity 57 in the 2nd plate 55b At.In addition, the mould wheel 52 of the present embodiment 2 is other than the opposite position of the 1st die cavity of the 1st plate is different, with implementation above-mentioned The mould wheel 52 of example 1 is substantially identically formed.

Thus, in the mould wheel 52 of the present embodiment 2, the 1st die cavity of the 1st plate also divides in the outer peripheral surface from mould wheel 52 inwardly The position opened is formed as being buckled to shape.In addition, being configured at the die cavity face and the 1st of the 1st die cavity in the 1st plate of the present embodiment 2 The ridgeline of circular arc portion in circle-shaped ridgeline between lamination surface, being configured at radial outside is configured to block Close the edge for locally pressing the lower surface of hook portion when element is extracted from the die cavity of mould wheel 52 and compressing the lower surface of the hook portion Portion.

In the present embodiment 2, the mould wheel 52 with the forming die cavity for being formed with snap-fit element 20b as described above is used Manufacturing device 50 and the manufacture of forming face connector 2 is carried out similarly with the case where embodiment 1 above-mentioned.

I.e., the synthetic resin material after melting is continuously squeezed out from extruding jet nozzle 53 towards the outer peripheral surface of mould wheel 52, benefit Forming face connector (interim forming face connector) is formed with the outer circumferential surface section of mould wheel 52.The forming face connector is on one side The outer circumferential surface section of the mould wheel 52 rotated carries, and is cooled on one side than low-melting temperature.

Next, the forming face connector as made of the outer circumferential surface section forming of mould wheel 52 is by above-mentioned pick-up roller 54 from mould wheel 52 outer circumferential surface section continuously and is forcibly removed (by compulsion).At this point, engaging member made of the die cavity internal shaping of mould wheel 52 The hook portion of part (interim snap-fit element) is pressed and compressed by the above-mentioned edge part of the 1st plate, and is nuzzled up.As a result, in hook The lower surface in portion forms smooth compressing surface 32.Moreover, at this point, hook portion is byed this while from edge part by the external force reversed Edge part pressing, thus hook portion inclination or whole in curved manner upward in a manner of from bar portion towards hook top updip Ground deformation, also, it is deformed into the asymmetrically shape on the direction M.

Also, the forming face connector stripped down from mould wheel 52 and then by pick-up roller 54 mutually at a predetermined interval It is imported between the upside niproll 54a dividually configured and downside niproll 54b, is clamped in upside niproll 54a under Between the niproll 54b of side.As a result, with embodiment 1 above-mentioned the case where in the same manner as, the hook portion that has been deformed upward from bar portion 21 It is pressurized from above by by upside niproll 54a, therefore, the hook portion deformed to the top forcibly (energetically) plasticity can be made Deformation, so that the hook portion is towards left and right directions (CD).The forming face connector 2 of the present embodiment 2 shown in Figure 13 is manufactured as a result,.

Later, it is indulged on the mechanical direction passed through between the upside niproll 54a of pick-up roller 54 and downside niproll 54b Long forming face connector 2 is conveyed towards cutting portion (not shown), is cut into scheduled length and be recovered by the cutting portion. Alternatively, being directly in that web-like winding is recovered in recycling roll etc. with the state of the forming face connector 2 of lengthwise.

In the forming face connector 2 of the present embodiment 2 manufactured as described above, bar portion 21 itself and hook portion 31b itself It is respectively provided with the form of feature same as the bar portion 21 of embodiment 1 above-mentioned and hook portion 31.I.e., the bar portion of snap-fit element 20b 21 form thicker, and the upper surface (top end face) of bar portion 21 is spherical.Moreover, in the present embodiment 2, in the upper of hook portion 31b Not set step 26 between surface and the upper surface of bar portion 21, the upper surface of hook portion 31b and the upper surface of bar portion 21 are continuously matched It sets.Therefore, in the forming face connector 2 of the present embodiment 2, the forming face connector 2 than embodiment 1 above-mentioned can be obtained The good skin sense of touch of skin sense of touch.

In addition, the intensity of the bar portion 21 of snap-fit element 20b is higher, therefore, forming face connector 2 can be made relative to gynetype The shear strength of face connector increases.Moreover, the hook portion 31b of snap-fit element 20b is from the upper end of bar portion 21 towards left and right directions (CD) prominent, also, smooth and harder compressing surface 32 is locally provided in the lower surface of hook portion 31b.Therefore, in this implementation In the forming face connector 2 of example 2, the ring for being hooked into the hook portion 31b of snap-fit element 20b is difficult to disengage from snap-fit element 20b, because This, can obtain the higher peel strength relative to gynetype face connector.

Embodiment 3

Figure 18 is the perspective view for indicating the forming face connector of the present embodiment 3.Figure 19 is only to indicate forming face connector The perspective view of snap-fit element.Figure 20~Figure 22 is main view, right, side view and the left side view of snap-fit element respectively.

The forming face connector 3 of the present embodiment 3 has laminal base part 10 and stands up the upper of base part 10 Multiple snap-fit elements 70 on surface.Base part 10 and the base part 10 of Examples 1 and 2 above-mentioned are identically formed.

Each snap-fit element 70 of the present embodiment 3 is respectively provided with: bar portion 71, is erected from base part 10；With 1 hook portion 81, It is prominent along crisscross (CD) from the upper end of bar portion 71.In the case where the present embodiment 3, the hook portion of each snap-fit element 70 81 is also all prominent from bar portion 71 to crisscross identical direction.

The bar portion 71 of snap-fit element 70 stands on the upper surface of base part 10.The bar portion 71 includes base end part 72, from base Material portion 10 erects, and integrally has flexure plane in outer peripheral edge portion；Bar main part 73, be continuously configured at base end part 72 it On；And club head 76, it is configured on bar main part 73, has from top and flatten such shape.The bar of the present embodiment 3 Portion 71 has symmetrical on the basis of the center of mechanical direction (MD) and in mechanical direction (width direction of bar portion 71) Shape.

The base end part 72 of the bar portion 71 be formed as the area in the section orthogonal with up and down direction with close to base part 10 and It is incremented by, to improve intensity of the bar portion 71 relative to base part 10.

The section orthogonal with up and down direction of bar main part 73 is in close to the shape of semicircle or than by round arc chord encirclement The big shape of semicircle.In addition, bar main part 73 has the area in the section orthogonal with up and down direction with close to base part 10 And incremental form.

In addition, bar main part 73, which includes flat hook, is arranged face 74, configured for hook portion 81；With bar outer peripheral surface, with It is in arc-shaped in the orthogonal section of up and down direction.Face 74 is arranged by orthogonal and orthogonal with CD with the upper surface of base part 10 in hook Single flat surface formed.

In addition, bar portion 71 is opposite with hook arranging face 74 with being configured at (referring to Figure 20) in the main view of snap-fit element 70 The bar back side 75 of side.The bar back side 75 in the main view of snap-fit element 70 to make hook that the CD between face 74 and the bar back side 75 be arranged On size with the upper surface far from base part 10 and the mode successively decreased is formed.

In this case, the bar back side 75 includes upper end back part 75d in the main view of snap-fit element 70, is configured at bar Head 76；Upside curved face part 75a, convex (or arc-shaped) are configured at the upper end of 71 main part of bar portion；Downside curved face part 75b, the lower end for being configured at bar portion 71 adjacent and concave with base part 10；And inclination face 75c, it is configured at upside Between curved face part 75a and downside curved face part 75b.

Moreover, M of the bar main part 73 to keep left and right sides intermarginal (referring to Figure 21 or Figure 22) in the side view of snap-fit element 70 The mode that size on direction is successively decreased with the upper surface far from base part 10 is formed.

The bar main part 73 of the present embodiment 3 by being formed as described above, bar portion 71 can intensity with higher, because This, even if snap-fit element 70 by external force, can also be difficult to deform.Especially, bar portion 71 can be difficult to be deformed into the direction C The lodging of 75 side of the bar back side.

The club head 76 of bar portion 71 is relatively thinly formed on bar main part 73 with lesser height dimension.The club head 76 It is formed in such a way that any height and position all has same shape by the shape in the section orthogonal with up and down direction.Head The upper surface 76a (in other words, the upper surface of bar portion 71 or top end face) in portion 76 is formed as parallel with the upper surface of base part 10 Flat surface.In addition, the upper surface 76a of club head 76 formed with the aftermentioned base end side upper surface 85a with hook portion 81 it is single flat The mode in face configures.

The form with the following characteristics of hook portion 81 of the present embodiment 3: hook top end part 86 tilts downwards, also, in hook portion 81 lower surface is configured with the compressing surface 82 for being formed more smooth than hook upper surface 85.Here, the lower surface of hook portion 81 refers to, hook portion The top as described above from hook portion 81 in 81 outer surface is configured to the linking part being connected with bar portion 71 in hook portion 81 Point lower end and downward or obliquely downward (i.e., towards base part 10) configuration part.

In addition, the hook portion 81 of the present embodiment 3 includes hook main part 83, it is prominent along left and right directions (CD) from bar portion 71； With front and back a pair of reinforcing ribs 84, configured in a manner of being stretched out from the upper end of hook main part 83 along front-rear direction (MD). Hook main part 83 has with the thin shape of head to become smaller far from bar portion 71.I.e., hook main part 83 is so that in bar width direction Size (size in the front-back direction) is formed with the mode successively decreased far from bar portion 71.By so being formed, ring can be made easy In being hooked in hook main part 83.Moreover it is preferred that hook main part 83 so that size in bar up and down direction also with far from bar Portion 71 and the mode successively decreased is formed.In addition, reinforcing ribs 84 is configured in the front and rear sides of hook main part 83, so as to effective The intensity of ground raising hook portion 81.

As shown in figure 20, the upper surface (hook upper surface) 85 of the hook portion 81 includes base end side upper surface 85a, is configured at Hook base end part (end of bar connection side)；With tip side upper surface 85b, have a down dip from base end side upper surface 85a towards hook top. The base end side upper surface 85a of hook portion 81 is continuously configured from the upper surface 76a of club head 76 and the upper surface with the club head 76 76a forms single flat surface.In this case, flat across the hook main part 83 of base end side upper surface 85a and front and back of hook portion 81 84 ground of reinforcing ribs configuration.

In the snap-fit element 70 of the present embodiment 3, the upper surface 76a of club head 76 as described above and the cardinal extremity of hook portion 81 Side upper surface 85a is formed as the flat surface parallel with the upper surface of base part 10.At the same time, the tip side upper surface of hook portion 81 85b is formed with having a down dip towards hook top.Thereby, it is possible to make snap-fit element when touching forming face connector 3 from upper surface side The skin sense of touch of 70 upper end is good.

The lower surface of hook portion 81 is formed as following shape in such as main view of snap-fit element 70 (referring to Figure 20): with from Hook top is gone towards bar portion 71, the slightly updip in a manner of making the increments between the lower surface of hook portion 81 and base part 10, Then it is had a down dip in a manner of making the interval between the lower surface of hook portion 81 and base part 10 successively decrease.I.e., the hook portion 81 of the present embodiment 3 Be formed as, be formed obliquely downwards by hook top end part 86, the lower surface of hook portion 81 has in the main view of snap-fit element 70 Bail is hung on such concave curved surface (concave surface) for being bent or bending smaller between hook top and bar portion 71.

In addition, having in the lower surface for being formed as concave shape of hook portion 81 due to depressed and compression and being formed to compare hook The smooth and bright compressing surface 82 in the upper surface in portion 81.The compressing surface 82 and has than the upper surface more reflected light of hook portion 81 When also in the locally visible gloss of compressing surface 82.It is further preferred, that the compressing surface 82 of hook portion 81 forms than hook portion 81 Upper surface is hard.

Moreover, in the present embodiment 3, (especially from rear side hook portion 81 in the hook portion 81 from mechanical direction When), the case where the radius of curvature of the outer surface of the top end part 86 of hook portion 81 and embodiment 1 above-mentioned in the same manner as be set in 0.06mm or more and be 0.18mm or less range in, be preferably configured in 0.12mm or more and be 0.15mm range below It is interior.

In the snap-fit element 70 of the present embodiment 3, although bar portion 71 has in the direction M (width direction of bar portion 71) on pair The shape of title, but hook portion 81 has the asymmetrically shape in the direction M (width direction of hook portion 81).I.e., hook portion 81 with the side M To center on the basis of and be configured at the first half in front and be configured at the latter half of of rear and be formed as being asymmetrically to each other Entirely different form.In addition, from 81 side of hook portion from the direction C when side view (referring to Figure 21) of snap-fit element 70, top Face 87 is configured in the mode being clipped between the tip side upper surface 85b of hook portion 81 and compressing surface 82.

In this case, hook top end part 86 is configured at the position of the center of the front-rear direction (MD) than hook portion 81 rearward It sets.In addition, the rear end of the compressing surface 82 in hook portion 81 is configured at the position higher than the front end of the compressing surface 82, so that Such as the rear end of the compressing surface 82 shown in Figure 20 when the main view of snap-fit element 70 in hook portion 81 is blocked and does not see.

In addition, the specific size of snap-fit element 70 is set as follows in the present embodiment 3.

In such as up and down direction, the maximum height size H1 of the upper surface away from base part 10 in snap-fit element 70 is set It is fixed at 0.1mm or more and be 1.5mm hereinafter, being preferably set to 0.2mm or more and being 1.0mm or less.The top end part of hook portion 81 The height dimension H4 of the up and down direction of the upper surface away from base part 10 in 86 be configured to it is smaller than above-mentioned maximum height size H1, And it is configured to 0.1mm or more and is 1.5mm hereinafter, being preferably set to 0.2mm or more and being 1.0mm or less.

In the direction M (width direction of snap-fit element 20), full-size (the i.e., bar portion of the mechanical direction in bar portion 71 The size of mechanical direction at 71 base end part 72) L1 is configured to 0.1mm or more and is 1.5mm hereinafter, being preferably set to 0.2mm or more and be 1.0mm or less.In addition, the full-size L2 of the mechanical direction in hook portion 81 is configured to 0.01mm or more It and is 1.0mm hereinafter, being preferably set to 0.05mm or more and being 0.5mm or less.

Crisscross full-size (i.e., the intersection side at the base end part 72 of bar portion 71 on the direction C, in bar portion 71 To size) W1 is configured to 0.1mm or more and is 1.5mm hereinafter, being preferably set to 0.1mm or more and being 1.0mm or less. In addition, (the intersection side in face 74 i.e., is arranged in the crisscross full-size of hook portion 81 from the top of hook portion 81 to the hook of bar portion 71 To size) W2 be configured to 0.01mm or more and be 1.0mm hereinafter, be preferably set to 0.05mm or more and be 0.5mm with Under.

Moreover, the tilt angle relative to up and down direction of the above-mentioned inclination face 75c of bar portion 71 be configured to 5 ° with It above and is 20 ° or less.It is preferred that the full-size W2 in the above-mentioned direction C in hook portion 81 is configured to lower end and the bar portion of hook portion 81 (in other words, preferred size W3 is set less than half of the size W3 of the line segment parallel with the direction C between 71 hook arranging face 74 Determine more than at twice of the size of full-size W2).It is preferred that the full-size L2 in the above-mentioned direction M in hook portion 81 is configured to (in other words, preferred size L3 is configured to less than half of the size L3 in the direction M of the bar portion 71 at the lower end position of hook portion 81 More than twice of the size of full-size L2).

The forming face connector 3 of the present embodiment 3 as described above is manufactured using manufacturing device 90 shown in Figure 23.

The manufacturing device 90 includes forming device 51, be formed the aftermentioned once-forming body of face connector 3 at Shape；Once-forming body made of forming is removed from forming device 51, and makes the aftermentioned of once-forming body by pick-up roller 54 A part deformation of interim element；And heating press device 91, the once-forming body sent out from pick-up roller 54 is carried out It heats and presses the once-forming body.

In this case, the forming device 51 of the present embodiment 3 and 54 use of pick-up roller it is identical with embodiment 1 above-mentioned at Shape dress sets 51 and pick-up roller 54.Thus, in the mould wheel 52 of the present embodiment 3, the 1st die cavity 56 of the 1st plate 55a is from mould wheel 52 The aftermentioned once-forming body that the position that outer peripheral surface has separated inwardly is formed as forming face connector 3 can not be to keep its shape The back-off shape of constant mode molding.Moreover, be set to it is in the circle-shaped ridgeline of the 1st plate 55a, be configured at it is radial The ridgeline of the circular arc portion in outside is configured to a hook of interim element when extracting the interim element of once-forming body The lower surface in portion locally presses and the edge part 60 that compresses the lower surface of a hook portion of the interim element.

The heating press device 91 of the present embodiment 3 has upper and lower a pair of pressing roller (stack) 91a, 91b.Upside pressing roller 91a and downside pressing roller 91b are oppositely disposed in a manner of at predetermined spaced intervals.In this case, pressing roller 91a in upside is under Interval between the pressing roller 91b of side can be adjusted using height adjusting part part (not shown).In the case where the present embodiment 3, With the height gauge of the upper surface 76a of the lower surface (back side) of the base part 10 of the forming face connector 3 from manufacture to club head 76 It is very little to be correspondingly adjusted.

Upside pressing roller 91a is being internally provided with heating source (not shown).In this case, the table of upside pressing roller 91a Face temperature is configured to the temperature that the synthetic resin to form forming face connector 3 can be made to soften.Specifically, being configured into For more than " -40 DEG C of fusing point of temperature of the synthetic resin " and be " temperature of -10 DEG C of the fusing point " scheduled temperature below. In addition, upside pressing roller 91a is configured in a manner of rotating counterclockwise in Figure 23.The outer peripheral surface of upside pressing roller 91a become from The face of interim element after the heating of once-forming body made of top pressing shapes in once-forming process.

Downside pressing roller 91b is configured in a manner of rotating clockwise in Figure 23, become conveyed from lower support it is primary The bearing surface of formed body.In addition, in the present invention, also can using upside band mechanism (not shown) and/or downside band mechanism come Substitution upside pressing roller 91a and/or downside pressing roller 91b.In this case, upside band mechanism and downside band mechanism are respectively provided with Endless belt and pair of right and left rotating roller, the endless belt are hung on the pair of right and left rotating roller, also, the pair of right and left rotating roller Rotate endless belt to a direction.

Using the manufacturing device 90 with forming device 51 as described above, pick-up roller 54 and heating press device 91 In the case where forming face connector 3 to manufacture the present embodiment 3, firstly, carrying out using forming device 51 to forming face connector 3 The once-forming process that is formed of once-forming body.The once-forming process of the present embodiment 3 and embodiment 1 above-mentioned at Shape process is carried out similarly.

I.e., in the once-forming process of the present embodiment 3, by the synthetic resin material after melting from 53 direction of extruding jet nozzle The outer peripheral surface of mould wheel 52 continuously squeezes out, continuously to extruding jet nozzle 53 and rotation mould wheel 52 between spatial portion and setting To the interior filled synthetic resin material of each die cavity (spatial portion) of the outer circumferential surface section of mould wheel 52.

Moreover, the synthetic resin material filled is carried by the outer peripheral surface of mould wheel 52 on one side, it is cooled to compares fusing point on one side Low temperature, thus to the upper surface of base part 10 erect be provided with it is more with a hook portion (not shown) and bar portion The once-forming body (interim once-forming body) of a interim element is formed.The once-forming body shaped at this time is (interim primary Formed body) it is identical as the interim forming face connector of embodiment 1 above-mentioned.

Later, once-forming body made of being shaped as mould wheel 52 is connected by above-mentioned pick-up roller 54 from the outer circumferential surface section of mould wheel 52 Continuous and forcibly removing (by compulsion).At this point, in the die cavity of outer circumferential surface section for being formed in mould wheel 52, the 1st of the 1st plate 55a the Die cavity 56 is formed to be buckled to shape as described so.

Therefore, once-forming body is picked the pulling of roller 54, thus the hemispherical of the interim element made of die cavity internal shaping Hook portion of shape is pressed from the lower face side of a hook portion in the above-mentioned edge part 60 that the 1st plate 55a is formed and is compressed. At this point, mould wheel 52 is rotated along mechanical direction, therefore, a hook portion also by by the edge part 60 of the 1st plate 55a along machinery side The external force to as reversing.As a result, with embodiment 1 above-mentioned the case where in the same manner as, formed in the lower surface of a hook portion smooth And harder compressing surface 82.

Moreover, when a hook portion is extracted from the 1st die cavity 56, a hook portion on one side from the edge part 60 of the 1st plate 55a by External force on one side pressed by the edge part 60, thus a hook portion in a manner of from a bar portion towards hook top updip upward Inclination integrally deforms in curved manner, also, is deformed into the asymmetrically shape on the direction M.

And then the once-forming body stripped down from mould wheel 52 is pressed from both sides to the upside niproll 54a of pick-up roller 54 and downside It holds and imports and be clamped between roller 54b.At this point, deformed upward a hook portion for interim element is by upside niproll 54a is pressurized from above by.Thereby, it is possible to mould deformed in a manner of updip hook portion forcibly (energetically) downwards Property deformation so that a hook portion is towards the direction C.The once-forming body of the present embodiment 3 is made as a result,.Made sheet at this time The once-forming body of embodiment 3 has structure (construction) phase with the forming face connector 1 of embodiment 1 above-mentioned shown in FIG. 1 Same structure (construction).

I.e., the once-forming body of the present embodiment 3 has base part 10 and stands up multiple temporary elements of base part 10 Part (snap-fit element 20 of embodiment 1).In addition, interim element includes a bar portion (bar portion 21 of embodiment 1), from substrate Portion 10 erects；It is prominent along the direction C from the upper end of a bar portion with a hook portion (hook portion 31 of embodiment 1).And And the upper table for making the upper surface of a hook portion than a bar portion is formed between a bar portion and a hook portion for interim element The high step in face.

Next, above-mentioned once-forming body (the forming face connector 1 of the embodiment 1) quilt obtained by pick-up roller 54 It is conveyed towards the heating press device 91 for carrying out secondary forming process, and by the upside pressing roller 91a to heating press device 91 It is imported between the pressing roller 91b of downside.Moreover, once-forming body passes through between upside pressing roller 91a and downside pressing roller 91b, To which the upper end of a bar portion in interim element and the upper end of a hook portion are (i.e., in the snap-fit element 70 of embodiment 1 The upper end of bar portion 71 and the upper end of hook portion 81) by upside pressing roller 91a heat and soften, also, be pressurized from above by and It is crushed.

By carrying out such secondary forming process, the advance one of process more secondary forming than progress is capable of on the top of hook portion 81 Step is bent downwards.In addition, the upper end of a bar portion of once-forming body and the upper end of a hook portion are with one side extension one While the mode thermal deformation being flattened, the upper surface 76a of club head 76 and the base end side upper surface 85a of hook portion 81 are formed as single Flat surface.Moreover, forming a pair of of reinforcing ribs 84 of hook portion 81.

The snap-fit element 70 of the present embodiment 3 of Figure 18~as shown in Figure 22 is shaped as a result, therefore, is manufactured shown in Figure 18 The present embodiment 3 forming face connector 3.Later, on the mechanical direction that has passed through of heating press device 91 lengthwise forming Face connector 3 is conveyed towards cutting portion (not shown), is cut into scheduled length and be recovered by the cutting portion.Alternatively, with The state of the forming face connector 3 of lengthwise is directly wound in web-like and is recovered in recycling roll etc..

The forming face connector 3 of the present embodiment 3 manufactured as described above, which has, roughly erects setting from base part 10 Bar portion 71 and from the upper end of bar portion 71 along CD small hook portion 81 outstanding.Moreover, the hook portion 81 of snap-fit element 70 Hook top end part 86 is formed obliquely downwards, and in the hook portion 81 of snap-fit element 70 from the direction C (referring to Figure 21), hook Portion 81 is formed as asymmetric in the width direction (direction M) of hook portion 81.It is provided with the card of the present embodiment 3 of such hook portion 81 The form that element 70 has the feature entirely different with previous J shape, palm tree and mushroom is closed, is had as a result, The property for the following such feature that can not be obtained in the past.

It specifically describes, in the forming face connector 3 of the present embodiment 3, the bar portion 71 of snap-fit element 70 forms thicker, Therefore, it can be improved the intensity of bar portion 71.Thus, the case where the forming face connector 3 of the present embodiment 3 and embodiment 1 above-mentioned Similarly, the ring of gynetype face connector can be made to be easy to be hooked in the snap-fit element 70 of forming face connector 3 and stablize the two Ground engaging.Moreover, because the intensity of bar portion 71 is higher, forming face connector 3 can be made relative to the shearing of gynetype face connector Intensity increases.

In addition, in the snap-fit element 70 of the present embodiment 3, minimum hook portion 81 is from the upper end of bar portion 71 towards right and left It is prominent to (CD), and hook top end part 86 obliquely configures downwards.Moreover, the lower surface of the hook portion 81 of snap-fit element 70 is as above State locally has the compressing surface 82 for being formed more smooth than the upper surface of hook portion 81 like that.In addition, hook main part 83 have with Become the thin shape of head far from bar portion 71.

Thus, in the forming face connector 3 of the present embodiment 3, ring is easy to be hooked in the hook portion 81 of snap-fit element 70, separately Outside, the ring of the hook is difficult to disengage from snap-fit element 70, therefore, can steadily obtain relative to the higher of gynetype face connector Peel strength.

Moreover, in the snap-fit element 70 of the present embodiment 3, the upper surface 76a and hook portion 81 of the club head 76 in bar portion 71 Base end side upper surface 85a be formed as the continuous flat surface parallel with the upper surface of base part 10.In addition, so flat bar The upper surface 76a on head 76 and the base end side upper surface 85a of hook portion 81 are sudden and violent with the top of biggish area to forming face connector 3 Dew.It is good skin sense of touch when touching forming face connector 3 from upper surface side thereby, it is possible to steadily obtain, good Contact comfort level.

The forming face connector 3 of the present embodiment 3 of the property with above such feature is particularly suitable for being used in for example Disposable diaper, infant diaper to enclose trousers, keeping device, waist Corset, the gloves etc. in the joint etc. for protecting trick any Commodity relative to body dismounting.Moreover, this previous unexistent new forming face connector 3 of the present embodiment 3 passes through addition It is provided in previous forming face connector, the variation of forming face connector can be increased.As a result, being easy to more suitably answer To various types of gynetype faces connector (non-woven fabrics).

In addition, the forming face connector 3 of the present embodiment 3 is manufactured as follows: in forming face connector 3 Manufacturing process in use forming device 51 and pick-up roller 54, there is forming with embodiment 1 above-mentioned shown in FIG. 1 to make The once-forming body of the identical structure (construction) of face connector 1 (referring to Fig.1), later, by the once-forming body obtained to It heats and is imported between the upside pressing roller 91a and downside pressing roller 91b of press device 91.

But, in the present embodiment 3, pass through between the upside niproll 54a and downside niproll 54b of pick-up roller 54 Once-forming body may not be the forming face connector 1 of embodiment 1 above-mentioned, but have and embodiment 2 above-mentioned The forming face connector of the identical structure (construction) of forming face connector 2 (referring to Fig.1 3).

By the way that such once-forming body (i.e., the forming face connector 2 of embodiment 2) is imported heating press device 91 Above-mentioned secondary forming process is carried out, can also manufacture to be provided with to have in the setting of base part 10 and carry out in the present embodiment 3 The forming face connector of multiple snap-fit elements of 70 same structure of snap-fit element (construction) of explanation.So manufacture Forming face connector becomes the forming face connector of the variation of embodiment 3, can obtain and implementation shown in Figure 18~Figure 22 The same effect of forming face connector 3 of example 3.

In addition, there is 1 bar portion to each snap-fit element of forming face connector in 1~embodiment of embodiment 3 above-mentioned It is illustrated with the case where 1 hook portion outstanding along crisscross (CD) from the bar portion.But, in the present invention, may be used Multiple hook portions are highlightedly configured with 1 bar portion for snap-fit element.

Here, specifically describing the variation of such as embodiment 1 while referring to attached drawing.Embodiment is indicated in Figure 24 The snap-fit element 20c of 1 variation.The snap-fit element 20c of the Figure 24 has the bar portion 21c that erects from base part 10 and from bar portion The upper end of 21c is along crisscross identical towards two hook portions 31 outstanding.

Although the bar portion 21c of the variation has shape identical with the shape of bar portion 21 of embodiment 1 above-mentioned, shape It is bigger than the bar portion 21 of embodiment 1 above-mentioned at obtaining.I.e., the bar portion 21 of the bar portion 21c of variation and embodiment above-mentioned 1 has phase As relationship.In addition, two hook portions 31 of variation respectively with the identical shape of hook portion 31 of embodiment 1 above-mentioned and identical Size formed.

In addition, indicating the snap-fit element 20d of another variation of embodiment 1 in Figure 25.The snap-fit element 20d of the Figure 25 With the bar portion 21d erected from base part 10 and from the upper end of bar portion 21d along crisscross two hook portions 31 outstanding.Separately Outside, hook portion 31 is oppositely directed to protrude from bar portion 21d one another along crisscross.

The bar back side 25 as the not formed embodiment 1 above-mentioned of bar portion 21d of another variation, bar portion 21d's Face 24 is arranged configured with flat hook in the left and right sides.In addition, this is another in the snap-fit element 20d from crisscross (CD) The bar portion 21d of variation is in shape identical with 21 shape of bar portion of embodiment 1 above-mentioned.

In addition, two hook portions 31 have the shape for facing each other title in snap-fit element 20d.In this case, one Hook portion 31 is formed with shape identical with the hook portion 31 of embodiment 1 above-mentioned, identical size and identical direction.

It is also provided in the present invention comprising such erect in base part 10 of two above-mentioned variations with 1 bar portion The forming face connector of multiple snap-fit elements 20c, 20d of 21c, 21d and two hook portions 31.Connect in the forming face of these variations In fitting, the peel strength higher than the peel strength of the forming face connector 1 of embodiment 1 above-mentioned is obtained.In addition, such In the forming face connector of variation, similarly obtain strong in addition to removing in the forming face connector 1 of embodiment 1 above-mentioned Effect other than degree.It is such 1 bar portion configured with multiple hook portions snap-fit element can be applied not only to embodiment 1 at Shape face connector 1 equally can also be suitable for the forming face connector 2 of embodiment 2, the forming face connector 3 of embodiment 3.

Moreover, in 1~embodiment of embodiment 3 above-mentioned, illustrate using the forming device 51 with mould wheel 52 come into The case where forming process or once-forming process of row forming face connector.But, in the present invention, in forming face connector In forming process or once-forming process, it is also able to use the forming device of other forms.

For example, as forming device used in forming process or once-forming process, for example, being able to use following deformation The forming device of example, the forming device of the variation include mould wheel 52, drive and rotate to a direction；Pinch roller, with the mould wheel It is configured at predetermined spaced intervals between 52, and drives rotation to the direction opposite with mould wheel 52；And extrusion nozzle, it will melt Synthetic resin material after melting is squeezed out towards between mould wheel 52 and pinch roller.

In this case, the mould wheel 52 of the forming device of variation has is said in embodiment 1 above-mentioned waits Bright mould wheel 52 similarly constructs.In addition, in the forming device of variation, in the downstream side of mould wheel 52 configured with shown in Fig. 8 Such pick-up roller 54 for forcibly removing forming face connector or once-forming body from mould wheel 52.

The manufacture of face connector is formed using the forming device with such mould wheel 52 and the variation of pinch roller Process also can be manufactured steadily and such forming of the invention is illustrated in 1~embodiment of embodiment 3 above-mentioned is equal Face connector.

Description of symbols

1,1a, forming face connector；2,3, forming face connector；10, base part；20,20a, snap-fit element；20b,20c, Snap-fit element；20d, snap-fit element；21, bar portion；21c, 21d, bar portion；22, base end part；23, bar main part；24, face is arranged in hook； 25, the bar back side；25a, upside curved face part；25b, downside curved face part；25c, inclination face；26, step (stage portion)；31,31b, Hook portion；32, compressing surface；33, the top end part of hook portion；34, hook top end face；50, manufacturing device；51, forming device；52, mould wheel； 53, extruding jet nozzle；54, pick-up roller；54a, upside niproll；54b, downside niproll；55, metal plate；55a, the 1st plate；55b, 2nd plate；55c, the 3rd plate；56, the 1st die cavity；57, the 2nd die cavity；58, die cavity is assisted；59, step；60, edge part；70, engaging member Part；71, bar portion；72, base end part；73, bar main part；74, face is arranged in hook；75, the bar back side；75a, upside curved face part；75b, under Lateral curvature face；75c, inclination face；75d, upper end back part；76, club head；The upper surface of 76a, club head；81, hook portion；82, Compressing surface；83, hook main part；84, reinforcing ribs；85, the upper surface (hook upper surface) of hook portion；85a, base end side upper surface； 85b, tip side upper surface；86, the top end part (hook top end part) of hook portion；87, top end face；90, manufacturing device；91, heating pressing Device；91a, upside pressing roller；91b, downside pressing roller；The 1st plate at D1, the position adjacent with the radial outside of the 1st die cavity The 1st lamination surface and the 2nd plate the 2nd die cavity die cavity face between rotation axis direction on size；D2, the 1st die cavity away from The ruler on rotation axis direction between the die cavity face of 2nd die cavity in the die cavity face and the 2nd plate of the most deep position of the 1st lamination surface It is very little；The maximum height size of H1, snap-fit element；The maximum height size of H2, bar portion；The height dimension of H3, step；H4, hook portion Top end part height dimension；The full-size in the direction M in L1, bar portion；The full-size in the direction M in L2, hook portion；L3, The size in M direction of the bar portion at the lower end position of hook portion；The full-size in the direction C in W1, bar portion；The side C of W2, hook portion To full-size；Size (the bar portion of the line segment parallel with the direction C between W3, the lower end of hook portion and the hook arranging face of bar portion The size in the direction C at the lower end position of hook portion).

Claims

1. a kind of forming face connector is plastic forming face connector (1,1a, 2,3), the forming face connector (1,1a, 2,3) includes base part (10), is formed as extending along the 1st direction and the 2nd direction intersected with the 1st direction Tabular, and the lengthwise on the 1st direction；With multiple snap-fit elements (20,20a, 20b, 20c, 20d, 70), erect Be set to the upper surface of the base part (10), the snap-fit element (20,20a, 20b, 20c, 20d, 70) include bar portion (21, 21c, 21d, 71) is erected from the base part (10)；With at least one hook portion (31,31b, 81), from the bar portion (21, 21c, 21d, 71) upper end are prominent along the 2nd direction, which is characterized in that,

The hook portion (31,31b, 81), which has, makes the size in the 1st direction towards the hook top of the hook portion (31,31b, 81) And the shape that the head that successively decreases is thin,

The lower surface of the hook portion (31,31b, 81) locally have to be formed than the hook portion (31,31b, 81) upper surface Smooth compressing surface (32,82).

2. forming face connector according to claim 1, wherein

The upper surface of the hook portion (31) is arranged to the upper surface height than the bar portion (21,21c, 21d) by step (26),

The hook portion (31) has following shape: at snap-fit element (20,20c, 20d) described from the 1st direction, institute The upper surface of hook portion (31) is stated in convex-shaped, the lower surface of the hook portion (31) is in non-convex-shaped.

3. forming face connector according to claim 1, wherein

A part of the upper surface of the hook portion (31b) is continuously formed from the upper surface of the bar portion (21),

The hook portion (31b) has following shape: in snap-fit element (20b) from the 1st direction, the hook portion The upper surface of (31b) is in convex-shaped, and the lower surface of the hook portion (31b) is in non-convex-shaped.

4. forming face connector according to claim 2 or 3, wherein

The outer surface of the upper end of the bar portion (21,21c, 21d) is formed as spherical surface.

5. forming face connector according to claim 1, wherein

The upper surface of the hook portion (81) and the upper surface of the bar portion (71) are formed as single flat surface,

The top end part of the hook portion (81) obliquely configures downwards.

6. forming face connector according to claim 5, wherein

The snap-fit element (70) has a pair of of reinforcing ribs (84), which is configured at the hook portion (81) The 1st direction two sides, link upper end and the bar portion (71) of the hook portion (81).

7. forming face connector described according to claim 1~any one of 6, wherein

At hook portion (31,31b, 81) described from the 2nd direction, the hook portion (31,31b, 81) is formed as described It is asymmetric in the width direction of hook portion (31,31b, 81).

8. a kind of forming face connector is plastic forming face connector (1,1a, 2,3), the forming face connector (1,1a, 2,3) includes base part (10), is formed as extending along the 1st direction and the 2nd direction intersected with the 1st direction Tabular, and the lengthwise on the 1st direction；With multiple snap-fit elements (20,20a, 20b, 20c, 20d, 70), erect Be set to the upper surface of the base part (10), the snap-fit element (20,20a, 20b, 20c, 20d, 70) include bar portion (21, 21c, 21d, 71) is erected from the base part (10)；With at least one hook portion (31,31b, 81), from the bar portion (21, 21c, 21d, 71) upper end are prominent along the 2nd direction, which is characterized in that,

9. forming face connector according to claim 8, wherein

10. the forming face connector according to claim 7 or 9, wherein

The one end in the 1st direction of the compressing surface (32,82) of the hook portion (31,31b, 81) is configured at than the compression The high position in the other end in the 1st direction in face (32,82),

At snap-fit element (20,20a, 20b, 20c, 20d, 70) viewed from above, the top of the hook portion (31,31b, 81) End is configured at the center on the 1st direction relative to the bar portion (21,21c, 21d, 71) to the 1st direction The position that deviates from of the one end side.

11. the forming face connector according to any one of claim 7~10, wherein

At hook portion (31,31b, 81) described from the 1st direction, at the top end part of the hook portion (31,31b, 81) Radius of curvature be set in 0.06mm or more and be 0.18mm or less range in.

12. forming face connector described according to claim 1~any one of 11, wherein

It is configured with 1 hook portion (31,31b, 81) for 1 bar portion (21,71),

The bar portion (21,71), which has, to be erected from the base part (10) and towards the protrusion of the hook portion (31,31b, 81) Face (24,74) are arranged in the hook of direction configuration,

Face (24,74), which are arranged, in the hook has single flat surface, and the single flat surface is from the lower than the hook portion (31,31b, 81) Side is positioned against the base part (10) formation, also, orthogonal with the upper surface of the base part (10) and with the described 2nd Direction is orthogonal.

13. forming face connector according to claim 12, wherein

At snap-fit element (20,20a, 20b, 70) described from the 1st direction, the bar portion (21,71) has in institute State the bar back side (25,75) that the opposite side that face (24,74) are arranged in the hook is configured on the 2nd direction, the bar back side (25,75) With hook arranging face (24,74) made in the bar portion (21,71) with the upper surface far from the base part (10) The shape of decreasing dimensions between the bar back side (25,75).

14. forming face connector according to claim 13, wherein

At snap-fit element (20,20a, 20b, 70) described from the 1st direction, the bar back side (25,75), which has, is in Convex is configured at the upside curved face part (25a, 75a) of the upper end of the bar portion (21,71) and concave is configured at the bar portion The downside curved face part (25b, 75b) of the lower end of (21,71).

15. forming face connector according to claim 14, wherein

At snap-fit element (20,20a, 20b, 70) described from the 1st direction, the hook portion (31,31b, 81) has Following shape: the upper surface of the hook portion (31,31b, 81) is in have the upside curved face part than the bar portion (21,71) The convex-shaped of the small radius of curvature of the radius of curvature of (25a, 75a).

16. forming face connector described according to claim 1~any one of 15, wherein

Full-size on the 2nd direction of the bar portion (21,21c, 21d, 71) is set to 0.1mm or more and is 1.5mm Hereinafter,

The hook portion (31,31b, 81) is dashed forward from the maximum on the bar portion (21,21c, 21d, 71) described 2nd direction outstanding Size is set to 0.01mm or more and is 0.5mm or less out.

17. a kind of manufacturing method of forming face connector is the plastic forming face connector (1,1a, 2) of manufacture Manufacturing method, which includes flat base part (10), along mechanical direction lengthwise landform At；With multiple snap-fit elements (20,20a, 20b, 20c, 20d), stand up the upper surface of the base part (10), this at The manufacturing method of shape face connector is characterized in that,

The manufacturing method of the forming face connector includes:

Using forming device (51), the forming device (51) have outer circumferential surface section be formed with have with the snap-fit element (20, 20a, 20b, 20c, 20d) corresponding shape multiple die cavitys mould wheel (52), the die cavity have in the die cavity institute at The snap-fit element (20,20a, 20b, 20c, 20d) of shape can not in a manner of keeping its shape invariance molding back-off shape, And the die cavity face of the die cavity be configured with by the snap-fit element (20,20a, 20b, 20c, 20d) extract when can be to institute The a part for stating snap-fit element (20,20a, 20b, 20c, 20d) locally carries out the edge part (60) of pressing compression；

Synthetic resin material after melting is continuously squeezed out to the outer peripheral surface of the mould wheel (52) and in the mould wheel (52) The base part (10) is formed on outer peripheral surface, also, to the engaging member in the die cavity of the mould wheel (52) Part (20,20a, 20b, 20c, 20d) is formed, the snap-fit element (20,20a, 20b, 20c, 20d) include bar portion (21, 21c, 21d), it is erected from the base part (10)；With at least one hook portion (31,31b), from the bar portion (21,21c, Upper end 21d) is along the crisscross protrusion intersected with the mechanical direction；And

The snap-fit element (20,20a, 20b, 20c, 20d) is forcibly extracted from the die cavity and utilizes the edge part (60) pressing compression is carried out to the hook portion (31,31b) from the lower section of the hook portion (31,31b), and utilizes the edge part (60) nuzzle up below the hook portion (31,31b) hook portion (31,31b), thus the following table in the hook portion (31,31b) Face is formed locally compressing surface (32).

18. the manufacturing method of forming face connector according to claim 17, wherein

The manufacturing method of the forming face connector includes:

Using the downstream side for being configured at the forming device (51) and there is upside niproll (54a) and downside niproll The pick-up roller (54) of (54b) this pair of rolls, and the forming face connector formed thereby is removed from the mould wheel (52)；And

After having removed the forming face connector from the mould wheel (52), pressed using the upside niproll (54a) The snap-fit element (20,20a, 20b, 20c, 20d), thus make to be extracted from the die cavity and towards the hook portion of oblique upper (31,31b) plastic deformation.

19. the manufacturing method of forming face connector described in 7 or 18 according to claim 1, wherein

The manufacturing method of the forming face connector includes being formed the upper surface of the hook portion (31,31b) by step (26) It is higher than the upper surface of the bar portion (21,21c, 21d).

20. a kind of manufacturing method of forming face connector is the manufacturer for manufacturing plastic forming face connector (3) Method, the forming face connector (3) include flat base part (10), are lengthways formed along mechanical direction；With multiple cards It closes element (70), stands up the upper surface of the base part (10), which includes: once-forming process, In the once-forming process, to the base part (10) and standing up multiple interim elements of the base part (10) Once-forming body be formed；With secondary forming process, in the secondary forming process, to described in the once-forming body Interim element is heated, and the interim element is flattened from top, thus to the institute with the snap-fit element (70) Forming face connector (3) to be stated to be formed, the manufacturing method of the forming face connector is characterized in that,

The manufacturing method of the forming face connector includes:

In the once-forming process, using forming device (51), which has is formed in outer circumferential surface section Has the mould wheel (52) of multiple die cavitys of shape corresponding with the interim element, the die cavity has the institute in the die cavity Forming the interim element can not in a manner of keeping its shape invariance molding back-off shape, in the die cavity face of the die cavity Configured with when the interim element is extracted can a part to the interim element locally carry out the side of pressing compression Edge (60),

Synthetic resin material after melting is continuously squeezed out to the outer peripheral surface of the mould wheel (52) and in the mould wheel (52) The base part (10) is formed on outer peripheral surface, also, to the temporary element in the die cavity of the mould wheel (52) Part is formed, and the interim element includes a bar portion, erects from the base part (10)；With hook of at least one Portion, from the upper end of a bar portion along the crisscross protrusion intersected with the mechanical direction；And

The interim element is forcibly extracted from the die cavity, and utilizes the edge part (60) from a hook portion Lower section carries out pressing compression to a hook portion, and is nuzzled up below a hook portion using the edge part (60) Hook portion, to be formed locally compressing surface (82) in the lower surface of a hook portion.

21. the manufacturing method of forming face connector according to claim 20, wherein

The manufacturing method of the forming face connector includes:

In the once-forming process, using the downstream side for being configured at the forming device (51) and there is upside to clamp The pick-up roller (54) of this pair of rolls of roller (54a) and downside niproll (54b), by the once-forming body formed thereby from the mould Take turns (52) removing；And

After having removed the once-forming body from the mould wheel (52), institute is pressed using the upside niproll (54a) Interim element is stated, to make to be extracted from the die cavity and be plastically deformed towards a hook portion for oblique upper.

22. the manufacturing method of forming face connector according to claim 20 or 21, wherein

The manufacturing method of the forming face connector includes:

In the once-forming process, the upper surface of a hook portion is set to be formed than a bar portion by step Upper surface is high；And

In the secondary forming process, by flattening the upper end of the interim element from top, thus by the engaging The upper surface of hook portion (81) in element (70) and the upper surface of bar portion (71) are formed as single flat surface.

23. a kind of forming device, be used in forming face connector (1,1a, 2) forming or forming face connector (3) one The forming device (51) of the forming of secondary formed body, comprising: mould wheel (52) rotates driving to a direction；With extrusion nozzle (53), It squeezes out the synthetic resin material after melting towards the mould wheel (52), which is characterized in that,

The snap-fit element having with the forming face connector (1,1a, 2) is provided in the outer circumferential surface section of the mould wheel (52) Multiple die cavitys of the corresponding shape of interim element of (20,20a, 20b, 20c, 20d) or the once-forming body,

The die cavity has the snap-fit element (20,20a, 20b, 20c, 20d) or described made of the die cavity internal shaping Interim element can not in a manner of keeping its shape invariance molding back-off shape,

The mould wheel (52) has the multiple discoid metal plates (55) being axially laminated,

Each metal plate (55) has the 1st lamination surface and the 2nd lamination surface orthogonal to the axial direction,

The 2nd lamination surface of the metal plate (55) is configured at the opposite side of the 1st lamination surface,

The metal plate (55) includes multiple 1st plates (55a), is recessed in the 1st lamination surface to the snap-fit element The 1st die cavity that the hook portion (31,31b) of (20,20a, 20b, 20c, 20d) or a hook portion of the once-forming body are formed (56)；With multiple 2nd plates (55b), the 2nd lamination surface be recessed with to the snap-fit element (20,20a, 20b, 20c, The 2nd die cavity (57) that bar portion of bar portion (21,21c, 21d) or the once-forming body 20d) is formed,

What the 1st plate (55a) was connected with the 1st die cavity (56) with the 2nd die cavity (57) with the 2nd plate (55b) It is adjacent to stacking toward each other,

1st die cavity (56) with peripheral end face with the size for forming the back-off shape recessed dividing in the 1st plate (55a) The position opened,

The peripheral end face of 2nd die cavity (57) from the 2nd plate (55b) is continuously recessed towards radially inner side.

24. forming device according to claim 23, wherein

Most inner side position radially in 1st die cavity (56) be located at than in the 2nd die cavity (57) radially most Inner side more leans on radial inside, is formed between the 1st die cavity (56) and the 2nd die cavity (57) by the described 2nd The step (59) that the 2nd lamination surface of plate (55b) is formed.

25. the forming device according to claim 23 or 24, wherein

Recessed the 1st lamination surface in the 1st plate (55a) of the hemispherical shape of 1st die cavity (56),

The radius of the semi-spherical shape of 1st die cavity (56) is set to 0.01mm or more and is 0.5mm or less.

26. the forming device according to any one of claim 23~25, wherein

2nd die cavity (57) has peripheral end face court of the circumferential size of the 2nd plate (55b) from the 2nd plate (55b) The shape successively decreased to radially inner side,

The inside top end face radially of 2nd die cavity (57) has spherical surface, which has 0.01mm or more and be 0.5mm Radius of curvature below.