KR20130003028A - Slider for concealed slide fastener - Google Patents

Abstract

Provided is a slider for a concealed type slide fastener which is configured to be compact in size and capable of smooth sliding operation of a slider even when a strong transverse attraction is applied during closing of the slide fastener. The rear end 13b of the element of the fastener element 13 is fixed to a pair of second element guide portions 8 extending from the front end frame 2a of the lower blade 2 toward the rear fastener 17 side So that the fastener element 13 in an upwardly rising state is tilted so as to be in a horizontal state. At this time, the fastener element 13 also comes into sliding contact with the first element guide portion 7 provided on the outer periphery of the guide post 5, so that the fastener element 13 becomes more horizontal.

Description

A slider for a concealed type slide fastener (SLIDER FOR CONCEALED SLIDE FASTENER)

The present invention relates to a slider for a concealed type slide fastener of the type in which the body of the slider, which is the opening and closing port, is not exposed to the outside when the slide fastener is closed. The present invention also relates to a slider for a concealed type slide fastener that enables smooth slider operation even when a strong transverse pulling force acts on the slider at the time of closure of the concealed type slide fastener.

This kind of concealed type slide fastener has been widely used for ladies' clothes, but recently it has been used in other fields besides the covering. For example, it has been used in seat seats for automobiles and trains.

The seat sheet covers a cushion body previously formed integrally with the frame. At this time, the size of the seat cover is smaller than the external dimension of the cushion body, so that the seat sheet is constituted so as to cover the cushion body in a compressed state and to suppress the occurrence of looseness and deformation in the external shape as much as possible have.

Further, in order to uniformly distribute and load the load from the occupant during seating, the cushion body is elastically deformed when the occupant is seated, but the seat cover can be deformed following the elastic deformation of the cushion body have. When the occupant is separated from the seat, the seat cover is reliably returned to the circular shape in accordance with the return of the cushion body to the circular shape. The seat cover is configured so as to be able to follow the deformation of the cushion body, thereby preventing the shape of the seat seat from being disturbed.

The seat cover is usually made of natural leather, synthetic leather, or a laminated sheet. The laminated integrated sheet has a structure in which a skin layer, a thin elastic intermediate layer, and a backside bubble layer are laminated and integrated by lamination or the like. A woven fabric or the like having various structures is used for the skin layer, and a thin elastic intermediate layer is a polyurethane foam sheet or the like. And a thin knitted fabric obtained by knitting or weaving using an extremely thin yarn is used as a backbone layer.

Normally, in order to manufacture a seat cover of a seat seat from these sheets, a plurality of sheet pieces cut in accordance with the shape are combined and sewed in a three-dimensional shape. However, when the entire seat cover is made by sewing, the seat cover can not be covered with the cushion body of the seat having a complicated external shape. Therefore, conventionally, after the unsealed portion is made in advance in the seat cover, the seat cover is covered with the cushion body, and then the unsealed portion is sewn by hand sewing.

When the final finishing work is finished by hand sewing, a difference in the function of the sewing worker tends to cause a difference in the quality of the finished product or the sewing time until the finished product is finished. Therefore, in recent years, in order to eliminate the finishing work by hand-sewing, a slide fastener is often used in a sewing part of a seat cover along, for example, a welt part.

In addition, as the slide fastener used for the seat seat, a concealed type slide fastener in which the slider body is not exposed to the outside has been used in many cases in order to improve the design from the outside. As a result of using the slide fastener, all the sewing operations can be performed by the sewing machine, so that the conventional problem based on the difference in function is greatly improved and the production efficiency is further improved.

When the concealed type slide fastener is used in a seat seat of an automobile or the like as described above, since the seat cover is configured to be smaller than the outside dimension of the cushion body, a strong lateral drag is applied to the fastener stringer in the vicinity of the slider do. As a result, when a fastener stringer in which the side edge portions opposed to each other of the fastener tape are bent and fixed in a U-shape and the fastener element is attached along the edge of the folded end portion of the side edge portion is used, When the pulling force acts on the fastener element, the fastener element is raised by the strong lateral pulling force. That is, the fastener element is in a posture in which the engaging head portion is raised and standing at right angles to the tape surface of the fastener tape.

Each of the fastener elements introduced into the shoulder while receiving a strong transverse pulling force in the vicinity of the shoulder of the slider is introduced into the slider from the shoulder mouth in a state of standing at a substantially right angle with respect to the tape surface of the fastener tape.

The rear end of the element located on the opposite side to the engaging head portion of each fastener element can be hardened toward the direction of slightly horizontal state when it rides on the upper surface of the lower blade of the slider. However, since the hardness is small, sometimes the fastener element is introduced into the slider from the ratchet as it stands. As a result, the fastener element is caught by the tape guide path guiding the fastener tape, making it impossible to slide the slider.

If the slider is forcibly slid in this state, the fastener element to which the lateral pulling force is applied is damaged. In the worst case, the bending rim of the fastener tape may be cut. Further, when the fastener elements are introduced into the slider in a state in which the fastener elements are not completely in a horizontal state, the fastener elements opposed to each other at the time of closing the slide fastener are not correctly engaged with each other, so that a so-called puncture state is generated.

As a slider which can be used for a concealed type slide fastener in which such a strong transverse attraction is applied, the present applicant has already proposed a slider for a concealed type slide fastener (see Patent Documents 1 and 2). The concealed type slide fastener has a pair of fastener stringers in which fastener tapes are bent and fixed in a U shape to face each other and fastener elements are attached along the edges of the folded end portions of the side edge portions .

The slider for the concealed type slide fastener disclosed in Patent Document 1 is a prior art 1 of the present invention, and Fig. 9 is a perspective view of this slider. 9, a pair of right and left first flanges 43, 44 having opposite L-shaped cross-sections along the respective side edges are provided at the left and right side edges of the lower blade 42 of the slider 41 And is installed upright. A guide post 45 having a substantially elliptical horizontal cross section is installed at the center of the front edge of the lower blade 42.

The wedge-shaped space defined between the upper plate portions 43a and 44a of the pair of first flanges 43 and 44 has a rectangular region 46a integrally formed on the upper surface of the guide column 45 and a wedge- And a second flange 46 protruding outward along the outer periphery of the guide post 45 is provided. The bottom height of the second flange 46 from the lower blade 42 at the shoulder mouth side end is set to be higher than the bottom height from the lower blade 42 at the other area, A tapered surface 46c gradually increasing in taper angle toward the rear window side is formed on the outer circumferential surface of the tapered surface 46. [

The height of the tapered surface 46c of the second flange 46 on the side of the shoulder mouth of the second flange 46 is set to be the height of the tapered surface 46c of the lower flange 46, And is higher than the height at the upper ridge portion of the surface 46c. With this configuration, even if the fastener element is introduced into the slider 41 from the shoulder mouth in a state in which the fastener element is hardened in the slightly horizontal direction from the standing state, the fastener element does not interfere with the second flange 46, 2 flange 46 to be introduced into the element guide passage 49. The tapered surface 46c of the flange 46 is inserted into the element guide passage 49,

The guiding of the tapered surface 46c of the second flange 46 and the tension of the leading element and the fastener tape during the introduction of the fastener element into the element guide passage 49, The element connecting portion is gradually tilted to the posture in which it is about to enter the lower surface of the second flange 46. The fastener elements introduced into the element guide passage 49 are formed in such a manner that the hardness posture is ensured by the upper plate portions 43a and 44a of the pair of first flanges 43 and 44 and the second flange 46 And smoothly advances through the element guide passage 49 of the slider 41.

The fastener elements are prevented from being caught between the upper plate portions 43a and 44a of the lower blade 42 and the second flange 46 to prevent the breakage of the fastener elements and the occurrence of breakage of fastener tapes . Further, the smooth sliding movement of the slider 41 can be performed, and the slider 1 for the concealed type slide fastener can be closed without any trouble.

The slider for the concealed type slide fastener described in Patent Document 2 is the conventional example 2 of the present invention, and Fig. 10 is a perspective view of the slider. A pair of flanges 53 and 54 having an inverted L-shaped cross section provided along left and right side edge portions orthogonal to the sliding direction of the slider 51 are erected from the lower blade plate 52 Is installed.

At the center of the front end edge of the lower blade plate 52, the guide posts 55 are set up between the pair of upper plate portions 53a, 54a. An element guide portion 57 protruding outward toward the inner end face 56 of the upper plate portions 53a and 54a is provided on the outer periphery of the guide column 55. The upper plate portions 53a and 54a The front end portion of the fastener element 59 in the engaging direction of the fastener element 59 extends forward beyond the front end portion of the element guide portion 57. [

The front end portion in the engaging direction of the fastener element 59 in the upper plate portions 53a and 54a is extended forward from the front end portion of the element guide portion 57 in the invention of Patent Document 2 . With this configuration, the fastener element 59 has a posture in which the engagement head portion 59a is upwardly positioned at a right angle to the fastener tape 60 at a position spaced forward from the slider 51 in the engagement direction The fastener element 59 is guided in the slider 51 while contacting the upper plate portions 53a and 54a extended forward from the front end of the element guide portion 57. [

The fastener elements 59 guided in the slider 51 in contact with the upper plate portions 53a and 54a are actuated by the fastener elements 59 hardened in the horizontal posture and hardened in the horizontal state A hardness force acts. A tensile force is applied to the fastener element 59 to pull the fastener tape 60 into the slider 51 based on the sliding operation of the slider 51. [

As a result, the pair of right and left fastener elements 59 are hardened in a horizontal state from a posture erecting at a right angle until the element guide passage of the slider 51 enters the element guide passage. Since the fastener tape 60 is in sliding contact with the upper plate portions 53a and 54a and comes close to the guide column 55, the engaging head portion 59a of the fastener element 59 is brought into contact with the element guide portion 57 .

Each fastener element 59 in a state of being appropriately hardened in a horizontal state is introduced into the element guide passage 58 of the slider 51 while the engaging head portion 59a is in contact with the element guide portion 57 I will go. The engaging head portion 59a of the fastener element 59 can be moved smoothly toward the rear mouth side in the element guide passage 58 while being gradually inclined toward the posture toward the lower side of the element guide portion 57 have.

Thereby, the right and left pair of fastener elements 59 can be engaged with each other in a right posture (meshing posture) in which the right and left fastener elements 59 are hardened in a completely horizontal state. The fastener element 59 does not get caught in the tape guide passage formed between the flange 53 and the element guide portion 57 and the fastener element 59 is damaged or the fastener tape 60 And the like can be prevented from occurring. As described above, according to the invention of Patent Document 2, the slider 51 can be smoothly moved and the concealed slide fastener can be closed without any trouble.

Japanese Patent Application Laid-Open No. 2007-54176 Japanese Patent Application Laid-Open No. 2007-135722

As a basic structure in the invention of Patent Documents 1 and 2, the fastener element is tilted to a horizontal posture by guiding the fastening element of the fastener element to a fastener element that stands upright at right angles to the fastener tape .

Therefore, in the invention of Patent Documents 1 and 2, as a guide portion which slidably contacts the engaging head portion of the fastener element and imparts a rotational moment when tilting the fastener element in the posture in a right angle, In the invention of Document 1, the second flange 46 protruded outward along the outer periphery of the guide column 45, and the element guide portion 57 in the invention of Patent Document 2, respectively.

According to the invention of Patent Documents 1 and 2, it is possible to tilt the fastener elements in a standing position at right angles to a horizontal posture in which the gripping posture is achieved.

However, the fastener elements hardened by the lateral pulling force acting on the fastener tape are inclined at various angles depending on the direction of the lateral pulling force and the magnitude of the lateral pulling force. As a result, the angle at which the fastener elements come into contact with the guide portion capable of imparting the rotation moment is not stable.

In addition, when a stronger lateral pulling force is applied to the fastener tape, the fastener element slides along the longitudinal direction of the fastener tape without being positively contacted with the guide portion, and the fastener element is not smoothly returned to the horizontal position There was still room for improvement.

Particularly, when the fastener elements are sewn and sewn together with the sewing thread along the edge of the end portion of the fastener tape, the fastener elements are not integrally fixed to the fastener tape. As a result, the fastener tape to which the strong lateral drag acts acts also moves in the direction of pulling in the lateral direction while causing relative movement with respect to the fastener element.

In the invention of Patent Document 1, the head portion of the fastener element is in contact with the tapered surface 46c of the second flange 46 when the amount of movement of the fastener element is small relative to the amount of movement of the fastener tape in the transverse pulling direction, Or it can not be pressurized with a strong force. In the invention of Patent Document 2, the engaging head portion 59a of the fastener element 59 can not be pressed against the element guide portion 57 or can be pressed with a strong force.

In this state, the rotation moment for hardening the standing posture in the horizontal state is set to be greater than the rotational moment from the tapered surface 46c of the second flange 46 or the element guide portion 57 to the fastener element It can not be operated on.

As a result of various studies, the inventor of the present invention found that before the tapered surface 46c of Patent Document 1 or the element guide portion 57 of Patent Document 2 is brought into contact or contact with the first element guide portion, It is possible to tilt the fastener element in the posture in the horizontal state in the engagement state by bringing the rear end of the element into sliding contact with the second element guide portion, thereby completing the present invention.

By configuring the slider for the concealed type slide fastener in accordance with the present invention, the force acting on the fastener element from the second element guide portion and the force acting on the fastener element in the horizontal state A torsional force to pull the fastener tape into the slider, and the like can be effectively applied to the fastener elements introduced into the slider.

By applying these forces to the fastener elements, the fastener elements having a posture that stands at a substantially right angle with respect to the fastener tape is tilted to a horizontal posture in which the engagement posture is achieved. Then, the fastener stringer can move smoothly in the Y-shaped element guide passage formed in the slider toward the rear mouth side while gradually tilting. Thereby, the fastener element smoothly moves in the Y-shaped element guide passage formed in the slider.

Further, since the fastener elements can be prevented from being caught between the Y-shaped element guide passages, the sliding movement of the slider can be smoothly performed.

As described above, according to the present invention, by further improving the inventions of Patent Documents 1 and 2, even if a strong transverse pulling force is applied at the time of closing the slide fastener, the concealed type slide fastener The present invention is directed to a slider for use in a mobile phone.

In order to attain the above object, in a slider for a concealed type slide fastener of the present invention, a fastener tape is bent and fixed in a U-shape, and a pair of fastener stringers attached with a fastener element along an end edge of the folded fastener tape A slider for a concealed type slide fastener for engaging and disengaging each of the fastener elements,

The slider includes a lower blade and a pair of sidewalls extending along both side edges of the lower blade in the left and right direction perpendicular to the sliding direction of the slider, A pair of upper plates each extending in a direction approaching each other from an upper end; guide poles installed upright from the lower blade at the shoulder of the slider;

A first element guide portion formed to protrude from the outer periphery of the guide column and an inner end surface of the pair of upper plates and an outer end surface of the first element guide portion, And a second element guide portion extending from the front edge of the lower blade toward the rear edge of the lower blade at both left and right ends of the lower blade,

And the second element guide portion is formed by protruding from the lower blade to the upper plate on the side of the guide column.

Further, in the present invention, the second element guide portion is arranged in the same position as the tip of the shoulder mouth of the guide post in the sliding direction of the slider or over the tip of the shoulder mouth side.

In the present invention, it is preferable that the first element guide portion includes: a side guide surface which is formed toward the rear mouth from the side of the guide post and has a surface parallel to the sliding direction of the slider; , And the shoulder mouth side has a front guide surface inclined upward, and the first element guide portion is configured to be opposed to the second element guide portion.

Further, in the present invention, the second element guide portion is a protruding portion formed from the inner wall of the lower blade to the inner wall of the side wall.

Further, in the present invention, it is characterized in that the ridge portion has an inclined surface inclined from the lower blade to the side wall, and the inclined surface faces the side of the first element guide portion.

Further, in the present invention, the Y-shaped shoulder-side tape guide passage bisected in a bifurcate direction toward the shoulder mouth side of the slider in the tape guide passage extends in a straight line toward the shoulder mouth side of the slider,

And the second element guide portion is provided so as to extend along the direction of the tilting axis inwardly of the axis of the shoulder mouth side tape guide passage.

Further, in the present invention, the starting position of the second element guide portion for slidingly bringing the rear end of the element into sliding contact with the engaging head portion of the fastener element is set in front of the first element guide portion for starting the guide As shown in FIG.

In the present invention, the shoulder-side front end portion of the second element guide portion is disposed forward of the inclined face located on the lower blade side than the inner wall of the upper plate among the first element guide portions .

Further, according to the present invention, the fastener element is attached by sewing along the edge of the fastener tape.

In the present invention, the front end frame in the engaging direction of the fastener elements in the pair of upper plates as viewed in a plan view extends to the vicinity of the rim of the front end of the lower wing plate, And a curved portion formed by chamfering is formed on the inside facing corner portion of the front edge of the plate.

In addition, in the present invention, the front end portion of the pair of side walls is disposed on the rear side of the front end portion of the second element guide portion.

A slider for a concealed type slide fastener having a pair of fastener stringers with a fastener element attached thereto along a rim of a folded end of the side edge portion, the fastener tape being bent and fixed in a U- .

Here, a description will be given of a case where the tip end portions of a pair of upper plates, in which the bent portions of the fastener tape introduced into the slider are in sliding contact, are set as rotation supporting points at which the fastener tapes are curved by the lateral pulling force. At this time, in the pair of fastener stringers, the distance from the rotation supporting point to the rear end of the element is longer than the distance from the rotation supporting point to the engaging head. Therefore, as the rotation moment for tilting the fastener element, the sliding contact guide of the element rear end portion can impart a larger rotation moment force to the fastener element than the sliding contact guide of the engaging head portion.

As described above, even if the fastener element immediately before being introduced into the slider is introduced in a posture that stands upright at a substantially right angle with respect to the fastener tape, as a portion of the fastener element to be guided at first, By guiding the rear end portion, it is possible to efficiently impart the rotational moment for making the posture in the horizontal state to the fastener element efficiently.

In addition, when the fastener elements are sewn and sewn together along the edges of the fastener tapes, the fastener elements are not integrally fixed to the fastener tape. Even if the fastener tapes are moved by the lateral pulling force, The fastener element does not move integrally with the movement of the fastener tape but is left. However, with respect to the moving direction of the fastener tape along the tape guide passage, the fastener element moves integrally in this direction.

Thus, in the movement of the fastener tape along the tape guide passage, the rear end of the element of the fastener element is moved while sliding on the second element guide. Further, the engaging head portion of the fastener element can be moved to the first element guide side by the second element guide, so that the engaging head portion can slide on the first element guide.

Thus, the rear end of the element can be guided while being in contact with the second element guide portion, and can also make sliding contact with the first element guide. And the fastener elements in a standing state can be brought into a horizontal posture by the second element guide portion.

In addition, the engaging head portion of the fastener element supported by the second element guide portion can be tilted to the horizontal state positively by slidingly contacting the first element guide portion.

In the present invention, in order to guide the rear end of the element in the slider, a second element guide portion for guiding the rear end portion of the element is provided at both left and right end sides of the lower wing plate so as to extend from the front end rim of the lower wing plate toward the rear mouth side . In addition, the second element guide portion is arranged so as to face the side surface of the guide column and is raised from the lower blade plate toward the upper plate.

With this configuration, even if the fastener element immediately before being introduced into the slider is in the posture that stands at a substantially right angle with respect to the fastener tape, the posterior end of the element is guided to provide a rotational moment for achieving a posture in a horizontal state with respect to the fastener element Can be efficiently provided.

The engaging head portion of the fastener element can be supported by the second element guide portion so that the angle and position of the fastener element when sliding on the first element guide portion are respectively within a predetermined range. Thereby, the engaging head portion of the fastener element can be brought into sliding contact with the first element guide portion in a stable state.

In the present invention, the arrangement relationship of the second element guide portion and the guide post is such that the second element guide portion is disposed at the same position as the end of the shoulder mouth of the guide post or over the end of the shoulder mouth side in the sliding direction of the slider It can be. With this configuration, the fastener element can be tilted to a horizontal posture immediately before or when the fastener element enters the element guide path, so that the fastener element can smoothly pass through the slider.

According to the present invention, as the configuration of the first element guide portion, it can be formed from the side of the guide post toward the rear mouth. A side guide surface having a surface parallel to the sliding direction of the slider and a front surface continuous with the side guide surface and a front guide surface inclined upward toward the shoulder mouth side. Further, the first element guide portion and the second element guide portion may be configured to be opposed to each other.

By constituting in this way, it is possible to efficiently perform the tilting of the fastener element in the horizontal posture by the joint action of the first element guide portion and the second element guide portion. Further, after the rear end of the element is brought into sliding contact with the second element guide portion, the engaging head portion of the fastener element can be brought into sliding contact with the first element guide portion.

After the fastener element which has been in the posture standing substantially at right angles to the fastener tape is slightly inclined in the direction to become horizontal by the second element guide portion or after the fastener element is brought into sliding contact with the second element guide portion The fastener element can be surely tilted toward the horizontal state by the joint operation of the first element guide portion and the second element guide portion.

As the configuration of the second element guide portion, it can be configured as a raised portion formed from the inner wall of the lower blade to the inner wall of the side wall. By constituting in this manner, the guide surface and / or the guide step can be formed on the ridge portion. At this time, the configuration of the guide surface may be formed as an inclined surface inclined from the lower blade to the side wall, and the guide surface may be configured as a surface opposed to the first element guide portion.

With this configuration, it is possible to efficiently perform the tilting of the fastener element in the horizontal posture by the second element guide portion. In addition, with respect to the fastener elements that have been in an upright position at a substantially right angle to the fastener tape, a rotational moment for making the fastener element horizontal can be efficiently imparted to the rear end of the element from the guide surface and / or guide step portion of the second element guide portion can do. Further, by forming the guide surface as an inclined surface, it is possible to efficiently perform the guide when the fastener element is tilted to the horizontal posture with the inclined surface.

In the present invention, as a constitution at the side of the shoulder mouth which is bifurcated toward the shoulder mouth side of the slider in the Y-shaped tape guide passage, the constitution is made to be enlarged and open in a linear shape spreading toward the shoulder mouth side of the slider, 2 element guide portion may extend in the direction of the tilting axis inwardly of the axial line of the tape guide passage on the shoulder mouth side.

With this configuration, the bending portion of the fastener tape contacting the edge of the front end portion of the pair of upper plates can be configured to have a large radius of curvature when the fastener tape is bent in the longitudinal direction. Thereby, the fastener stringer which receives the tensile force in the transverse direction can be smoothly introduced into the tape guide passage. Further, the angle of elevation of the fastener elements rising substantially at right angles to the fastener tape can be suppressed.

Further, the Y-shaped tape guide passage may be configured such that the shape thereof is expanded in a straight line, and the axis of the second element guide is inclined inwardly with respect to the linearly expanded axis. You can. With this configuration, as the fastener element moves toward the rear mouth side of the slider, it can more reliably approach the first element guide side. Therefore, the fastener element can smoothly come into contact with the first element guide surface, and can be tilted in a horizontal state.

Particularly, even if the used element is of the type that is sewn by the sewing thread on the fastener tape, even if the fastener tape is moved by the lateral pulling force and is shifted in the side direction of the fastener tape in the shape in which the fastener element is left, The gap between the second element guide and the tape guide path is narrowed toward the rear mouth side of the slider so that the shifted fastener element can be forcibly returned to its original position.

In the present invention, the starting position of the second element guide portion for slidingly contacting the rear end of the element to start the guide may be arranged in front of the first element guide portion for starting the guide by sliding the engaging head portion of the fastener element have.

With this configuration, the position and angle of the fastener element can be held within a predetermined range by the second element guide before the fastener element contacts the first element guide. Since the position, the angle, and the like can be set within a predetermined range, the inclination angle of the fastener element can be efficiently made to the horizontal posture direction side by the second element guide.

In the present invention, the position of the shoulder-side front end of the second element guide portion may be arranged in front of the inclined face located on the lower blade side of the inner wall of the upper plate among the first element guide portions.

With this configuration, even if the fastener element just before being introduced into the slider is in a standing position that is substantially perpendicular to the fastener tape, the fastener element can be brought into sliding contact with the second element guide part first. And the rotational moment for bringing the fastener element into a horizontal posture can be operated earlier than the second element guide portion.

In the present invention, the front edge of the pair of upper plates in the engaging direction of the fastener elements is extended to the vicinity of the front edge of the lower blade, A chamfered portion formed by chamfering may be formed in the inner opposite corner portion of the front edge of the frame.

With this configuration, even if the fastener element just before being introduced into the slider is in an upright position perpendicular to the fastener tape, the front end edge of the top plate and the second element guide part are jointed to each other, The tilting can be performed.

In the present invention, the inner opposite corner portions of the front edge of each of the top plates are each formed in a curved shape obtained by chamfering. Further, when the fastener tape is slidably brought into contact with the inner opposite corner portion, when a strong tension force in the transverse direction acts on the bent portion of the fastener tape, a strong tensile force received by the folded portion of the fastener tape is transmitted to the curved portion . As a result, it is possible to weaken the action of concentrated stress on the bent portion of the fastener tape.

Thus, even in the process of tilting the fastener element to the horizontal posture in which the fastener element is in the engagement posture, it is possible to prevent the fastener tape from being thermally tipped.

In the present invention, the end position on the front end side of the pair of side walls may be arranged on the rear end side of the position of the end portion on the front end side in the second element guide portion.

With this configuration, when the bent portion of the fastener tape contacting the edge of the front end portion of the pair of upper plates is curved with respect to the longitudinal direction of the fastener tape, the edge portion of the second element guide portion Between the end portions on the side of the front end in the side wall of the fastener element can function as a space portion avoiding interference with the fastener elements.

When the bent portion of the fastener tape contacting the edge of the front end portion of the pair of upper plates is curved along the curved shape at the front end edge of the chamfered pair of upper plates, So that it does not come into contact with the front end portion and can smoothly curve.

In the present invention, in the state before the engaging head portion of the fastener element is forced to rotate in the horizontal posture direction by the first element guide portion, or in the state before the fastener tape is moved in the longitudinal direction by the front end frame of the pair of upper plates The rotation moment for rotating the fastener element in the horizontal posture direction can be imparted to the rear end of the element of the fastener element by the second element guide portion.

And the inclination angle of the fastener element when the engaging head portion of the fastener element slides on the first element guide portion can be set to the horizontal posture direction side .

1 is a perspective view of a slider for a concealed type slide fastener.
2 is a plan view and a cross-sectional view of the slider.
3 is a front view of the slider. (Embodiment) Fig.
4 is a sectional view along the center line of the slider.
5 is a view for explaining the behavior of the engagement element viewed from the element guide surface of the slider. (Explanation Diagram) Fig.
6 is an explanatory view of a main part showing the behavior of the fastener element viewed from the shoulder mouth side.
7 is a cross-sectional view taken along the line AA of Fig. 5. (Embodiment)
8 is a cross-sectional view taken along the line BB of Fig. 5. (Embodiment)
9 is a perspective view of a slider for a concealed slide fastener. (Prior Art 1)
10 is a perspective view of a slider for a concealed type slide fastener. (Conventional Example 2) Fig.

Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the drawings. The present invention is not limited to the embodiments described below, but can be modified in various ways as long as it has substantially the same configuration as that of the present invention and has the same function and effect.

In the present invention, the forward and backward direction refers to the sliding direction of the slider, and the front side of the slider shoulder mouth is referred to as front and the rearward side is referred to as rearward. The left-right direction refers to a direction orthogonal to the sliding direction of the slider in plan view. The vertical direction refers to the direction of the top and bottom surfaces of the lower blade of the slider, and the side of the upper plate is referred to as the front side and the side of the lower blade is referred to as the back side.

The fastener chain for a concealed type slide fastener used in the present invention is a type in which a synthetic resin or a metal as an element is integrally injected into a fastener tape or a type in which an element molded with a metal is caulked to a fastener tape, Various types of fastener chains such as a type in which an element formed in a coil shape or a zigzag shape formed in a shape is attached to a fastener tape can be used as a fastener chain for a concealed type slide fastener.

7 and 8, the slider 1 for the concealed type slide fastener according to the present invention is bent and fixed in a U-shape in which the side edges of the fastener tapes 14 facing each other are opposed to each other, And a pair of fastener stringers to which the fastener elements 13 are attached along the edges of the folded end portions of the side edge portions.

Example

1, the slider 1 includes a lower blade 2, a pair of flanges 3 and 4 installed upright along the left and right side edges of the lower blade 2, A guide column 5 provided on the plate 2 and a handle mounting column 6 provided on the upper surface of the guide column 5 and a first element guide portion 7 provided on the outer periphery of the guide column 5, A second element guide portion 8 provided on the left and right of the lower blade 2, and a handle (not shown) rotatably supported on the handle mounting post 6.

The slider 1 has a symmetrical shape passing through the center line of the slider 1 in the left and right direction and having a plane perpendicular to the lower blade 2 as a mirror plane. The width of the lower blade 2 in the left and right direction is the same as the width from the front edge rim 2a of the lower blade 2 to a position slightly further rearward than the rear end of the guide pillar 5 , And then the width is reduced and the same width is formed up to the end edge of the rear window 17 side.

As shown in Figs. 1 to 3, the pair of flanges 3 and 4 include a pair of side walls 3a and 4a which are erected along the left and right side edges of the lower blade 2, And a pair of upper plates 3b and 4b which are bent so as to face each other from the upper end of the sliders 1 and extend in the forward and backward directions of the slider 1, And is formed in an L shape.

2, each of the side walls 3a, 4a is continuous to the parallel portion 23c and the parallel portion 23c from the rear opening 17 in plan view and extends in the width direction toward the front And an opened enlarged opening portion 23b. The front end portion 20 of each of the side walls 3a and 4a is extended to the vicinity of the position where the width of the lower blade 2 in the left and right direction gradually starts to decrease in width. The widthwise shape of the lower blade 2 in the left-right direction on the front side from the enlarged opening portion 23b is configured as a parallel portion 23a.

2 shows a plan view of the slider 1 on the left half of FIG. 2 as viewed from the plane of the slider 1 and on the right half of FIG. 2, the first element guide portion 7 and the upper plate (3b) are removed. In the right half of FIG. 2, the first element guide portion 7 and the upper plate 3b thus removed are shown as imaginary shapes using dotted lines.

The front end rim 21 of each of the top plates 3b and 4b is extended to the periphery of the front end rim 2a of the lower wing plate 2 as viewed from the plane shown in Fig. The bottom surface of the front end frame 21 side of each of the top plates 3b and 4b is configured as a space portion which is not supported by the side walls 3a and 4a.

That is, the front end rim 21 of the top plates 3b and 4b preferably has a configuration that extends forward from the front end portions 20 of the side walls 3a and 4a. The fastener elements 13 provided on the concealed type slide fasteners are spaced from the front end portions 21 of the top plates 3b and 4b and the front end portions 20 of the side walls 3a and 4a, And 4a of the front end portion 20 of the first and second guide portions 20a and 20b.

As shown in Fig. 1, the inner opposing corner portions of the front end frame 21 of each of the top plates 3b, 4b facing each other are formed as a chamfered portion 21a to which a chamfer is applied. The end faces of the top plates 3b and 4b facing each other are configured as an inner end face 21b.

The guide pillars 5 are installed in the vicinity of the shoulder 16 of the slider 1 at a central portion in the left and right direction of the lower blade 2. On the upper surface of the guide post 5, a handle-like post mounting column 6 extending in the front-rear direction is provided. The outer circumferential portion of the guide column 5 is provided with a first plate-like first protruding portion 25 outward from the outer peripheral portion of the guide column 5 toward the inner end surface 21b of the pair of upper plates 3b, An element guide portion 7 is provided.

After inserting the annular portion of the knob (not shown) into the knob mounting pillar 6 of the illustrated example, the knob can be supported by the knob mounting pillar 6 by caulking the knob mounting pillar 6.

As the configuration of the guide post 5, as in the PCT / JP2009 / 64927 application filed by the applicant of the present application, a body part 19 provided on the lower wing plate 2 and a cover The upper plate member 18 may be divided into two parts. Further, as described in Patent Documents 1 and 2, the guide posts 5 may be integrally molded together with the lower blade 2.

The configuration of the guide post 5 shown in Fig. 4 shows a configuration example in which the body part 19 and the covered upper plate member 18 are divided into two parts. On the outer circumferential surface of the body portion 19, a convex portion into which a concave portion formed inside the covered upper plate member 18 is inserted is formed. The concave portion of the covering upper plate member 18 is fitted into the convex portion formed on the outer circumferential surface of the body portion 19 and thereafter the leg portion (not shown) formed at the tip portion of the covering upper plate member 18 18a, the covered upper plate member 18 can be fixed to the body 19.

The concave portion of the covered upper plate member 18 may be configured such that the rear end side of the concave portion of the covered upper plate member 18 is clogged. With such a configuration, both front and rear end surfaces of the trunk portion 19 can be held between the rear end side of the concave portion of the covered upper plate member 18 and the leg portion 18a.

As shown in Figs. 1 and 4, a front surface guide surface 7a is formed on the outer peripheral surface of the covered upper plate member 18 so that the front end side of the covered upper plate member 18 is inclined forward. The upper surface of the cover upper plate member 18 is continuous from the left and right sides of the front surface guide surface 7a and extends from the side of the guide post 5 toward the rear opening 17 toward the lower blade plate 2 side And a side guide surface 7b is formed.

In other words, the side guide surface 7b is the inner wall of the plate-like first element guide portion 7 protruding from the guide post 5 and is parallel to the inner wall surface of the lower blade 2. On the other hand, the front surface guide surface 7a is an inclined surface inclined upward from the front end of the side guide surface 7b, and is formed on the front end surface side of the plate-like first element guide portion 7.

The first element guide portion 7 is constituted by the front guide surface 7a and the pair of left and right lateral guide surfaces 7b. As shown in Fig. 3, the first element guide portion 7 is configured so as to face the second element guide portion 8, which will be described later.

1 shows a configuration example in which the front curved surface on the front surface guide surface 7a has a planar inclined surface. However, the front curved surface on the front surface guide surface 7a may be a concave surface or It may be formed into a curved surface having a convex surface.

On the upper surface of the covering upper plate member 18, a handle mounting column 6 for supporting a handle (not shown) is installed. The front guide surface 7a and the pair of left and right side guide surfaces 7b are formed as the first element guide portion 7 even when the guide pillars 5 are integrally formed together with the lower blade 2, In the guide post 5, as shown in Fig.

The handle mounting pillar 6 may be provided on the lower blade 2 as described in the PCT / JP2009 / 64927 application.

The inner end face 21b of the pair of top plates 3b and 4b and the outer end face of the first element guide portion 7 form a U-shaped bent fastener tape And a Y-shaped tape guide passage 12 for guiding the bent portion 14a of the tape guide 14 is formed.

The rear end portion of the first element guide portion 7 is extended to the vicinity of the connection portion between the parallel portion 23a of each of the side walls 3a and 4a and the enlarged opening portion 23b.

The passage surrounded by the inner wall surface of the pair of flanges 3 and 4, the inner wall surface of the lower blade plate 2, the guide column 5 and the first element guide portion 7 is attached to the fastener tape 14 And an element guide passage (10) for guiding the fastener element (13).

The second element guide portion 8 is formed on the inner walls of both the left and right end sides of the lower blade 2. The second element guide portion 8 is a ridge raised upward from the inner wall of the lower wing plate 2, and the ridge is the front end portion 22 from the front end edge 2a of the lower wing plate 2. It extends toward the rear opening 17.

The rear element side of the second element guide portion 8 is extended in the direction of sliding of the slider substantially in the forward and backward direction and the rear side of the second element guide portion 8 is extended in the direction of enlargement of the side walls 3a, And the portion contacting the inner wall surface of the opening portion 23b serves as the end portion.

As shown in Figs. 1 and 3, the second element guide portion 8 includes a guide step 8a having a plane 24 toward the side walls 3a and 4a, a guide stepped portion 8a And a guide surface 8b inclined downward toward the upper surface of the lower blade 2 from the guide surface 8b. The plane 24 of the guide step 8a may be configured as a plane parallel to the upper surface of the lower blade 2 or may be configured as a smooth downward inclined surface toward the rear window 17 have.

The guide surface 8b or the guide stepped portion 8a of the second element guide portion 8 has a configuration in which the axis of the slider 1 is parallel to the center line of the slider 1 in the left- Or may extend in the axial direction toward the center line of the left and right direction toward the shoulder 16 of the slider 1. In addition,

That is, as the element rear end portion 13b of the fastener element 13, which is brought into sliding contact with the second element guide portion 8, is moved to the rear opening 17, the slider 1, It is necessary to form the guide surface 8b and / or the guide stepped portion 8a so as to be close to the center line side in the left and right direction in Fig.

The position of the front end portion of the second element guide portion 8 is set so as to extend from the position of the front end frame 2a of the lower blade 2 to the front end of the guide post 5 . However, the position of the front end portion of the second element guide portion 8 is not limited to the position where it overlaps with the side face of the guide post 5 over the length range of half or more of the side face of the guide post 5 in the front- It may be extended configuration.

A step portion 25 is formed on the lower edge side of the downwardly inclined guide surface 8b. As shown in Figs. 5 and 6, by the raised portions 29 formed on the upper surface of the lower blade 2 from the stepped portion 25 and the guide posts 5 to the rear opening 17, The fastener element 13 can be lifted from the upper surface of the lower blade 2 when the element 13 is in the horizontal posture. As the guide surface 8b, it may be configured as an inclined plane or a curved surface shape having a smooth convex curved surface or a concave curved surface.

The sewing thread 27 attached to the fastener tape 14 is fastened to the upper surface of the lower blade plate 2 when the fastener element 13 is in the horizontal posture, It can be kept in contact with it.

6, the connecting portion from the guide stepped portion 8a to the guide surface 8b is formed as a smooth convex curved surface, and the connecting portion from the guide surface 8b to the stepped portion 25 is formed as a smooth convex curved surface, And is formed as a curved surface.

In the present invention, the guide step 8a may be omitted, and the guide surface 8b may be extended to both left and right end sides of the lower blade 2.

2, the fillet portion 28 is provided along the boundary between the side walls 3a, 4a and the lower blade 2, and the fillet portion 28 is formed in the side walls 3a, 4a, And the lower blade 2, so as to improve the moldability at the time of molding.

Next, the smooth sliding operation of the slider 1 will be described in detail with reference to Figs. 5 to 8. Fig.

The fastener chain for a concealed type slide fastener shown in Fig. 5 shows a type in which a fastener element 13 molded in a coil shape or a zigzag shape formed linearly on a fastener tape (not shown) is attached. As shown in Fig. 7, the linear fastener element 13 is attached to the bent portion of the fastener tape 14 bent in a U-shape by using the sewing chamber 27. As shown in Fig. As shown in Fig. 5, the pair of fastener elements 13 are disposed so as to face each other with the engaging head portions 13a facing each other, and the opposite side of the engaging head portion 13a is connected by an inverting portion.

5 is a sectional view of the slider 1 not shown in the upper plate 3b or 4b and the first element guide portion 7 and is a sectional view of the fastener element 10 introduced into the element guide passage 10 of the lower blade 2, FIG. 6 shows a state in which the fastener element 13 introduced into the slider 1 slidably contacts the element rear end portion 13b with the second element guide portion 8 and the engaging head portion 13a is brought into contact with the first element guide portion 13a, The posture of the fastener element 13 introduced into the element guide passage 10 is changed in a standing posture by slidingly contacting the fastener element 7 with the fastener element.

7 is a sectional view taken along the line A-A in Fig. 5, and Fig. 8 is a sectional view taken along the line B-B in Fig.

5, the pair of fastener stringers 15 located on the front side of the shoulder 16 of the slider 1 are provided with the front end rims 21 of the pair of top plates 3b, 4b And is in a state of being opened largely by receiving a strong lateral force acting as a rotation supporting point. At this time, the fastener element 13 is moved upward toward the engaging head portion 13a in a posture close to the tape surface of the fastener tape 14 at a right angle.

The element rear end portion 13b of the successive fastener elements 13 is sequentially moved in the second element guide portion 8 of the slider 1 by sliding the slider 1 in the closing direction Or on the guide step 8a and / or the guide surface 8b of the guide portion 8b. At this time, the fastener element 13 which has made sliding contact with the second element guide portion 8 is prevented from sliding in the direction in which the engaging head portion 13a is lifted upward by the influence of the strong lateral pulling force acting on the fastener tape 14. [ It is in a posture.

When the slider 1 is further slid toward the closing direction, a rotational moment acting to harden the fastener element 13 from the second element guide portion 8 to the horizontal posture acts on the fastener element 13 . A twisting force acts to harden the subsequent fastener element 13 in the horizontal posture from the preceding fastener element 13 hardened in the horizontal posture through the fastener tape 14, 14) into the slider (1).

These forces act effectively on the fastener elements 13 introduced into the slider 1 so that the fastener elements 13 in the standing posture are brought into sliding contact with the second element guide portion 8, . 7, the engaging head portion 13a is further brought into sliding contact with the front surface guide surface 7a of the first element guide portion 7, so that the fastener element 13 is moved in the horizontal posture It goes harder. As shown in Fig. 8, the fastener element 13 may be in a horizontal posture.

As shown in Fig. 6, the fastener elements 13 in the upright posture are gradually rotated in the clockwise direction and gradually become in the horizontal posture.

As described above, in the present invention, when the fastener element 13 in the standing posture is introduced into the slider 1, the fastener element 13 is first brought into the horizontal posture with respect to the element rear end 13b, 2 action from the first element guide portion 8 to the engaging head portion 13a and from the first element guide portion 7 to the engaging head portion 13a, .

Since the pair of side guide surfaces 7b of the first element guide portion 7 are formed continuously with the front guide surface 7a which is the inclined surface, the fastener elements 13, which are hardened in the horizontal state, Can be smoothly introduced into the fastener element engaging area.

7, the leading end portions of the pair of top plates 3b and 4b, in which the bent portion 14a of the fastener tape 14 introduced into the slider 1 makes sliding contact, 13a is longer than the distance to the element rear end 13b. As a rotational moment for tilting the fastener element 13 by using this arrangement, it is preferable that the element rear end 13b is guided in sliding contact with the engaging head portion 13a as compared with the sliding contact guide of the fastener element 13, Can be given.

The start position of the second element guide portion 8 for slidingly contacting the element rear end portion 13b to start the guide is set to the first element guide portion 7 for starting the guide by bringing the engaging head portion 13a into sliding contact Of the fastener tape 14 and the start position of the tape guide passage 10 in which the guide starts to come into sliding contact with the bent portion 14a of the fastener tape 14. As shown in Fig.

With this configuration, before the engaging head portion 13a of the fastener element 13 is forced to rotate in the horizontal posture direction by the first element guide portion 7, or before the pair of top plates 3b, The rotation moment that rotates the fastener element 13 in the horizontal posture direction from the second element guide portion 8 to the rear end portion of the element 13b.

The fastener element 13 is supported by the second element guide portion 8 so that the rotation moment of the first element guide portion 7 (the front face guide surface 7a) is easily applied.

It is possible to smoothly introduce the fastener tape 14 into the tape guide passage 12. When the engaging head portion 13a of the fastener element 13 slides on the first element guide portion 7 , The inclination angle of the fastener element 13 can be set to the horizontal posture direction side to some extent.

Particularly, as shown in Fig. 7, when the fastener element 13 is sewn and sewn along the edge of the fastener tape 14 in the sewing chamber 27, the fastener element 13 is fastened to the fastener tape 14 are not integrally fixed to each other. As a result, the fastener tape 14 to which the strong transverse pulling force acts acts to move in the pulling direction while generating relative movement with respect to the fastener elements 13. [

Even if the fastener tape 14 is relatively moved with respect to the fastener element 13 by the lateral pulling force so that the fastener element 13 is left with respect to the moving direction of the fastener tape 14, 14, the fastener elements 13 move integrally with respect to the same direction.

The element rear end portion 13b of the fastener element 13 moves in sliding contact with the second element guide 8 in the movement along the tape guide passage 12 of the fastener tape 14. [ The engaging head portion 13a of the fastener element 13 is moved toward the first element guide 7 side by the second element guide 8 so that the engaging head portion 13a is engaged with the first element guide 7, As shown in Fig.

Then, the fastener element 13 is tilted from the standing posture to the horizontal posture by the second element guide 8 and the first element guide 7.

As described above, according to the present invention, since the fastener element 13 can be hardened smoothly in the horizontal posture, it is possible to reliably prevent the fastener element 13 from being caught in the tape guide passage 12. [ In addition, the fastener element 13 is smoothly slid in the element guide passage 10, so that it is possible to surely shift to a desired hardness posture necessary for engagement.

That is, before the pair of opposing fastener elements 13 are engaged with each other, the pair of fastener elements 13 can be reliably held in a horizontal posture. Thereby, the pair of fastener elements 13 can be surely engaged with each other, and occurrence of a so-called puncture state can be reliably prevented.

In the above description, the configuration using the chain-like fastener element as the fastener element in the concealed type slide fastener has been described. However, the fastener element in the present invention is not limited to the chain-like fastener element The present invention can be suitably applied to a concealed type slide fastener using so-called zipper teeth which are spaced apart at a predetermined interval and attached to the fastener tape as in the invention described in Patent Document 2.

Even in this case, the side of the engaging head portion of the zipper teeth is raised upward due to the influence from the fastener stringer in which the strong lateral drag acts. However, after the rear end side of the zipper teeth is first guided to the second element guide portion and is inclined to a somewhat horizontal state, the engaging head portion can be further guided so as to be in a horizontal posture in the first element guide portion.

The zipper teeth can be inclined horizontally by the second element guide portion and the first element guide portion. As described above, it is possible to reliably prevent the zipper teeth from being caught in the fastener tape guide passage and the occurrence of the so-called puncture state when the pair of zipper teeth are engaged with each other.

The present invention can be suitably used as a slider for a concealed type slide fastener attached to an opening of a seat cover or clothes of a seat seat.

1: Slider for concealed type slide fastener
2: Lower blade plate
3a, 4a: side wall
3b, 4b: upper plate
5: Guide posts
7: first element guide portion
7a: front guide face
7b: side guide face
8: Second element guide portion
8a: guide stepped portion
8b: Guide face
13: Fastener element
13a: engaging head portion
13b: element rear end
14: Fastener tape
18: Cloth top plate member
19:
41: slider
42: lower wing plate
43, 44: first flange
43a, 44a: upper plate portion
45: Guide posts
46: second flange
46c: a tapered surface
51: Slider
52: lower wing plate
53, 54: Flange
53a, 54a: upper plate portion
55: guide posts
56: inner end face
57: Element guide portion
58: Element guide passage

Claims (11)

The fastener elements 14 of the pair of fastener stringers 15 to which the fastener elements 13 are attached along the edge of the end portion of the fastener tape 14 bent and fixed in a U- The slider for a concealed type slide fastener according to claim 1,
The slider (1) comprises a lower blade (2)
A pair of sidewalls 3a and 4a provided upright along both side edges in the left and right direction orthogonal to the sliding direction of the slider 1 in the lower blade 2,
A pair of upper plates 3b and 4b extending from the upper ends of the pair of side walls 3a and 4a in directions approaching each other,
Guide pillars (5) installed upright from the lower blade (2) on the shoulder (16) side of the slider (1)
A first element guide portion 7 protruding from the outer periphery of the guide post 5,
The inner end face 21b of the pair of upper plates 3b and 4b and the outer end face of the first element guide portion 7 are bent in the U- A Y-shaped tape guide passage 12 for guiding the portion 14a,
And a second element guide section (8) extending from the front edge of the lower blade (2) toward the rear window (17) on both left and right ends of the lower blade (2)
Characterized in that the second element guide portion (8) is protruded from the lower blade (2) to the upper plate (3b, 4b) on the side of the guide post (5) Sliders for slide fasteners. The said 2nd element guide part 8 is arrange | positioned in the sliding direction of the said slider 1, and is arrange | positioned more than the same position as the shoulder side front end of the said guide pillar 5, or beyond the shoulder side front end. A slider for a concealed slide fastener, characterized by the above-mentioned. 3. The slider according to claim 1 or 2, wherein the first element guide portion (7) is formed so as to extend from the side of the guide post (5) toward the rear mouth and has a surface parallel to the sliding direction of the slider Side guide surfaces 7b,
And a front guide surface 7a that is continuous with the lateral guide surface 7b and inclined upward toward the shoulder 16, and the first element guide portion 7 has a front guide surface 7a, (8) of the slider for a concealed type slide fastener. The said 2nd element guide part 8 is a ridge | bulb part formed in the inner wall of the side wall 3a, 4a from the inner wall of the lower wing | plate 2 in any one of Claims 1-3. Slider for concealed slide fasteners. 5. The apparatus according to claim 4, wherein the ridge portion has an inclined surface inclined from the lower blade (2) toward the side walls (3a, 4a), and the inclined surface is opposed to the first element guide portion And a slider for a concealed type slide fastener. The Y-shaped nut side tape guide passage 12 of any one of Claims 1-5 which splits bifurcated toward the nut 16 side of the said slider 1 among the said tape guide passages. Is widened and opened in a straight line toward the shoulder 16 side of the slider 1,
The slider for a concealed type slide fastener according to claim 1, characterized in that the second element guide portion (8) is extended inwardly of the axis of the shoulder mouth side tape guide passage (12) along a tilting axis direction. The start position of the fastener element 13 according to any one of claims 1 to 6, wherein the starting position of the second element guide portion 8 for sliding the element rear end portion 13b to start the guide. A slider for a concealed slide fastener, characterized in that it is disposed in front of the first element guide portion (7) for sliding the engaging head portion (13a) to start the guide. The shoulder side front end part of the said 2nd element guide part 8 is the said top plate 3b, 4b in any one of the said 1st element guide part 7 in any one of Claims 1-7. A slider for a concealed slide fastener, which is disposed in front of an inclined surface positioned on the lower wing plate 2 side than an inner wall of the wall. The concealed slide fastener according to any one of claims 1 to 8, wherein the fastener element (13) is attached by sewing along an end edge of the fastener tape (14). . The front-end | tip part edge 21 in any one of Claims 1-9 in the engagement direction of the said fastener element 13 in the said pair of top plates 3b and 4b by planar view. Is extended to the vicinity of the front edge portion 2a of the lower wing plate 2,
Characterized in that a curved portion (21a) formed by chamfering is formed on the inside facing corner portion of the front end edge of each of the top plates (3b, 4b). The front end portion 17 of claim 10, wherein the front end portion 20 of the pair of side walls 3a and 4a is more than the front end portion 22 of the second element guide portion 8. A slider for a concealed slide fastener, which is arranged on the side.

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