JP5501454B2 - Hidden slide fastener slider - Google Patents

Description

  The present invention relates to a slider for a hidden slide fastener of a type in which a main body of a slider as an opening / closing tool is not exposed to the outside when the slide fastener is closed. The present invention also relates to a slider for a hidden slide fastener that enables smooth slider operation even if a strong lateral pulling force acts on the slider when the hidden slide fastener is closed.

  This type of hidden slide fastener has been widely used in women's clothing, but in recent years it has also been used in other fields besides clothing. For example, it has come to be used for seats of automobiles and trains.

  The seat seat covers a cushion body that is integrally formed with the frame in advance. At this time, the seat cover is configured to be smaller than the outer dimension of the cushion body, and the seat is covered with the cushion body in a compressed state so as to suppress the occurrence of looseness and deformation in the external shape as much as possible. A sheet is constructed.

  In addition, the cushion body is elastically deformed when the occupant is seated in order to receive the load from the occupant evenly when seated, but the seat cover is also configured to be able to deform following the elastic deformation of the cushion body. Yes. And when a passenger | crew leaves | separates from a seat, it is comprised so that a seat cover may return to an original form reliably according to a cushion body returning to an original form. By making the seat cover follow the deformation of the cushion body, the seat seat is prevented from being deformed.

  The seat cover is usually composed of natural leather, synthetic leather, or laminated and integrated sheets. The laminated and integrated sheet has a configuration in which a skin layer, a thin elastic intermediate layer, and a back base fabric layer are laminated and integrated by a lamination process or the like. As the skin layer, knitted fabrics having various structures are used, and as the thin elastic intermediate layer, a polyurethane foam sheet or the like is used. A thin knitted fabric obtained by knitting or weaving using extremely thin yarns is used as the back base fabric layer.

  Usually, a seat cover for a seat is manufactured from these sheets, and a plurality of sheet pieces cut according to the shape are combined and sewn into a three-dimensional shape. However, when the entire seat cover is manufactured by sewing, there are many cases where the seat cover cannot be covered with the cushion body of the seat having a complicated appearance. Therefore, conventionally, an unsewn portion is made in advance in the seat cover, and the unsewn portion is sewn by hand-sewing after the cushion cover is covered with the seat cover.

  When the final finishing work is finished by hand-sewing, the quality of the finished product and the sewing time until finishing the finished product are likely to vary due to differences in the skills of the sewing workers. Therefore, in recent years, in order to eliminate finishing work by hand-sewing, for example, a slide fastener is often used in a part of the sewing portion of the seat cover along the edge of the ball.

  Further, as a slide fastener used for a seat, a hidden slide fastener in which the slider body does not appear outward has been frequently used in order to improve the design from the exterior. As a result of using the slide fastener, all sewing operations can be carried out by the sewing machine, the conventional problems based on the skill difference are greatly improved, and the production efficiency is further improved.

  When the hidden slide fastener is used for a seat of an automobile or the like as described above, the seat cover is configured to be smaller than the outer dimension of the cushion body, so that a strong lateral pulling force acts on the fastener stringer in the vicinity of the slider. Will do. As a result, when a fastener stringer is used in which the opposite side edge portions of the fastener tape are bent and fixed in a U shape and the fastener element is attached along the bent edge of the side edge portion, the fastener When a strong lateral pulling force acts on the stringer, the fastener element is brought up by the strong lateral pulling force. That is, the fastener element is in a posture that rises at a right angle to the tape surface of the fastener tape with the meshing heads facing up.

  Each fastener element introduced into the shoulder mouth while receiving a strong lateral pulling force in the vicinity of the shoulder of the slider must be introduced into the slider from the shoulder mouth while standing substantially perpendicular to the tape surface of the fastener tape. become.

  In each fastener element, the rear end portion of the element located on the side opposite to the meshing head can be slightly tilted toward the horizontal state when it is placed on the upper surface of the lower blade of the slider. However, since the tilt is small, the fastener element is often introduced into the slider from the shoulder opening while standing. As a result, the fastener element is sandwiched in the tape guide path for guiding the fastener tape, making the slider impossible to slide.

  If the slider is forcibly slid in this state, the fastener element on which the lateral pulling force is acting will be damaged. In the worst case, the bent edge of the fastener tape may be torn. In addition, when the fastener element is introduced into the slider in a state where the fastener element is not completely horizontal, the opposing fastener elements do not mesh correctly when closing the slide fastener, so that a so-called puncture state occurs. Will occur.

  The present applicant has already proposed a slider for a hidden slide fastener (see Patent Documents 1 and 2) and the like as a slider that can be used for such a hidden slide fastener on which a strong lateral pulling force acts. This hidden slide fastener has a configuration including a pair of fastener stringers in which opposite side edge portions of the fastener tape are bent and fixed in a U shape and a fastener element is attached along the bent end edge of the side edge portion. ing.

  The slider for the hidden slide fastener described in Patent Document 1 is a conventional example 1 of the present invention, and FIG. 9 is a perspective view of the slider. As shown in FIG. 9, left and right side edges of the lower blade 42 of the slider 41 are provided with a pair of left and right first flanges 43 and 44 having an inverted L-shaped cross section along each side edge. A guide column 45 having a substantially oval horizontal cross section is provided upright at the center of the front edge of the lower blade 42.

  The wedge-shaped space formed between the upper plate portions 43a, 44a of the pair of first flanges 43, 44 includes a rectangular region 46a and a wedge-shaped region 46b formed integrally on the upper surface of the guide column 45, and the guide column A second flange 46 projecting outward along the outer periphery of 45 is provided. The lower surface height from the lower wing plate 42 at the shoulder mouth side end of the second flange 46 is configured to be higher than the lower surface height from the lower wing plate 42 in the other region. Is formed with a tapered surface 46c whose taper angle gradually increases toward the rear opening.

  In the invention of Patent Document 1, as the height with respect to the lower wing plate 42, the height at the upper end ridge line portion of the tapered surface 46c on the shoulder opening side of the second flange 46 is set to the height at the upper end ridge line portion of the tapered surface 46c at the rear opening. It is higher than that. With this configuration, even if the fastener element is slightly tilted in the horizontal direction from the standing state and is introduced into the slider 41 from the shoulder opening, the fastener element does not interfere with the second flange 46 and the second flange. It is guided by the tapered surface 46c of 46 and introduced into the element guide passage 49.

  While the fastener element is introduced into the element guide passage 49, the overall influence of the guide by the tapered surface 46c of the second flange 46 and the force to tilt the fastener element due to the tensile force of the preceding element and the fastener tape In response to this, the element connecting portion gradually tilts to a posture of trying to dive on the lower surface of the second flange 46. Then, the fastener element once introduced into the element guide passage 49 is ensured in an inclined posture by the upper plate portions 43a, 44a and the second flange 46 of the pair of first flanges 43, 44, and the slider. It smoothly proceeds in the 41 element guide passages 49.

  Further, the fastener element is not sandwiched between the upper plate portions 43a, 44a of the lower wing plate 42 and the second flange 46, and the occurrence of breakage of the fastener element or tearing of the fastener tape can be prevented. In addition, the slider 41 can be smoothly slid, and the slider 1 for the hidden slide fastener can be closed without any trouble.

  The slider for a hidden slide fastener described in Patent Document 2 is a conventional example 2 of the present invention, and FIG. 10 is a perspective view of the slider. As shown in FIG. 10, a pair of flanges 53, 54 each having a reverse L-shaped cross section provided upright from the left and right side edges perpendicular to the sliding direction of the slider 51 are erected from the lower wing plate 52. .

  At the center of the front edge of the lower wing plate 52, a guide column 55 is erected between the pair of upper plate portions 53a and 54a. On the outer periphery of the guide column 55, an element guide portion 57 is provided so as to project outward toward the inner end face 56 of the upper plate portions 53a, 54a. In the meshing direction of the fastener element 59 in the upper plate portions 53a, 54a The front end is configured to extend forward from the front end of the element guide portion 57.

  In the invention of Patent Document 2, the front end of the upper plate portions 53a and 54a in the meshing direction of the fastener element 59 is configured to extend forward from the front end of the element guide portion 57. With this configuration, even when the fastener element 59 is in a position that is spaced forward from the slider 51 in the meshing direction, with the meshing head 59a facing up, the fastener element 59 can stand up at a right angle to the fastener tape 60. 59 is guided into the slider 51 while contacting upper plate portions 53a and 54a extending forward from the front end of the element guide portion 57.

  The fastener element 59 guided into the slider 51 while being in contact with the upper plate portions 53a and 54a is tilted to be tilted in the horizontal state under the action of the preceding fastener element 59 tilted in the horizontal position. Force acts. Further, a tensile force that pulls the fastener tape 60 into the slider 51 is applied to the fastener element 59 based on the sliding operation of the slider 51.

  As a result, the pair of left and right fastener elements 59 are tilted from a vertically raised posture to a horizontal state before entering the element guide passage of the slider 51. Moreover, since the fastener tape 60 approaches the guide column 55 while slidingly contacting the upper plate portions 53a and 54a, the meshing head 59a of the fastener element 59 can be brought into contact with the element guide portion 57.

  Then, each fastener element 59 in a posture inclined moderately to the horizontal state is introduced into the element guide passage 58 of the slider 51 while the meshing head 59a is in contact with the element guide portion 57. The meshing head 59a of the fastener element 59 can smoothly move in the element guide passage 58 toward the rear opening side while gradually inclining toward the posture of diving below the element guide portion 57.

  Accordingly, the pair of left and right fastener elements 59 can be engaged with each other in a correct posture (meshing posture) in which the pair of left and right fastener elements 59 are tilted to a completely horizontal state. Then, unlike the conventional case, the fastener element 59 is not caught in the tape guide passage formed between the flanges 53 and 54 and the element guide portion 57, and the fastener element 59 is damaged or the fastener tape 60 is torn. Can be prevented. As described above, in the invention of Patent Document 2, the slider 51 can be smoothly slid, and the hidden slide fastener can be closed without hindrance.

JP 2007-54176 A JP 2007-135722 A

  As a basic configuration in the inventions of Patent Documents 1 and 2, the fastener element is in a horizontal state by guiding the meshing head of the fastener element with respect to the fastener element in a posture standing upright to the fastener tape. It is the composition which can be made to tilt to.

Therefore, in the inventions of Patent Documents 1 and 2, as a guide portion that slides on the meshing head of the fastener element to give a rotational moment when the fastener element in a posture standing at a right angle is tilted to a horizontal posture, In the invention of Document 1, a second flange 46 projecting outward along the outer periphery of the guide column 45, and in the invention of Patent Document 2, an element guide portion 57 is provided.
By configuring as in the inventions of Patent Documents 1 and 2, it is possible to tilt the fastener element standing up at a right angle to a horizontal posture that is a meshing posture.

  However, the fastener element tilted by the lateral pulling force acting on the fastener tape is tilted at various angles depending on the direction in which the lateral pulling force is applied and the magnitude of the lateral pulling force. For this reason, the angle at which the fastener element abuts against the guide portion capable of giving a rotational moment is not stable.

  Further, 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 smoothly In some cases, it did not return to the horizontal position, so there was still room for improvement.

  In particular, when the fastener element is sewn with a sewing thread along the edge of the fastener tape and attached, the fastener element is not integrally fixed to the fastener tape. Therefore, the fastener tape on which a strong lateral pulling force is applied may move in the lateral pulling direction while causing a relative movement with respect to the fastener element.

  When the amount of movement of the fastener element is small relative to the amount of movement of the fastener tape in the lateral pulling direction, for example, in the invention of Patent Document 1, the head of the fastener element is in contact with the tapered surface 46c of the second flange 46 or Cannot be energized with a strong force. In the invention of Patent Document 2, the meshing head 59a of the fastener element 59 cannot be brought into contact with the element guide portion 57 or urged with a strong force.

  In such a state, with respect to the fastener element in the tilted posture, a rotational moment for tilting the standing posture to the horizontal state is applied to the fastener element from the tapered surface 46c of the second flange 46 or the element guide portion 57. It becomes impossible to make it act.

  As a result of various investigations, the inventor of the present invention has made a fastener element before contacting or contacting the first element guide portion corresponding to the tapered surface 46c of Patent Document 1 or the element guide portion 57 of Patent Document 2. By slidably contacting the rear end portion of the element with the second element guide portion, the inventors came to the idea that the fastener element can be tilted to the horizontal posture that is the meshing posture, and the present invention has been completed.

  And by configuring the slider for the hidden slide fastener as in the present invention, the force acting on the fastener element from the second element guide portion, and the preceding fastener element tilted to the horizontal posture A twisting force for tilting the fastener element to a horizontal posture, a tensile force for pulling the fastener tape into the slider, and the like can be effectively applied to the fastener element introduced into the slider.

By applying these forces to the fastener element, the fastener element that is in a posture standing up at a substantially right angle with respect to the fastener tape is tilted to a horizontal posture that is a meshing posture. And the fastener stringer can move smoothly in the Y-shaped element guide passage formed in the slider toward the rear opening side while gradually tilting. As a result, the fastener element moves smoothly in the Y-shaped element guide passage formed in the slider.
In addition, since the fastener element can avoid a situation where it is sandwiched between the Y-shaped element guide passages, the sliding operation of the slider can be performed smoothly.

  As described above, the present invention further improves the inventions of Patent Documents 1 and 2, and enables a smooth slider sliding operation even when a strong lateral pulling force is applied when the slide fastener is closed. The purpose is to provide a slider for hidden slide fasteners.

In order to achieve the above object, in the slider for a hidden slide fastener according to the present invention, a fastener tape is bent and fixed in a U-shape, and a pair of fastener elements are attached along the edge of the folded fastener tape. A hidden slide fastener slider for engaging and disengaging each fastener element of the fastener stringer,
The slider is close to the lower blade plate, a pair of side walls erected along both left and right side edges perpendicular to the sliding direction of the slider on the lower blade plate, and an upper end of the pair of side walls. A pair of upper plates each extending in a direction to be guided, and a guide post erected from the lower blade on the shoulder side of the slider,
The fastener tape bent into the U-shape by a first element guide portion formed to protrude from the outer peripheral portion of the guide pillar, an inner end surface of the pair of upper plates, and an outer end surface of the first element guide portion. A Y-shaped tape guide passage that guides the bent portion of the lower wing plate, and a second element guide portion that extends from the front edge of the lower wing plate toward the rear opening side at the left and right end portions of the lower wing plate; With
The second element guide portion, Ri greens and raised from the lower blade at the side of the guide post toward the upper plate,
Among the tape guide passages, the Y-shaped shoulder opening side tape guide passage that is divided into two branches toward the shoulder opening side of the slider expands while spreading linearly toward the shoulder opening side of the slider,
The second element guide part is characterized in that the second element guide part is extended along an axial direction inclined inward from the axis of the shoulder opening side tape guide passage .

  In the invention of the present application, the second element guide portion is characterized in that the second element guide portion is arranged at the same position as or over the shoulder opening side of the guide column in the sliding direction of the slider.

  Further, in the present invention, the first element guide portion is formed from the side of the guide column toward the rear opening, and has a side guide surface having a surface parallel to the sliding direction of the slider, and the side guide. A front guide surface that is continuous with the surface and inclined toward the shoulder opening side and upward, and the first element guide portion is configured to face the second element guide portion. It is a feature.

Furthermore, the main feature of the present invention is that the second element guide portion is a raised portion formed from the inner wall of the lower blade to the inner wall of the side wall.
Moreover, in this invention, the said protruding part has an inclined surface which inclines toward the said side wall from the said lower blade board, and the said inclined surface faces so that the said 1st element guide part side may be opposed. This is the main feature.

  Furthermore, in the present invention, the start position of the second element guide portion that starts the guide by sliding the rear end portion of the element is the first position that starts the guide by sliding the meshing head of the fastener element. The main feature is that it is arranged in front of one element guide part.

  In the present invention, the front end of the second element guide portion on the shoulder opening side is arranged in front of the inclined surface located on the lower blade plate side of the inner wall of the upper plate in the first element guide portion. Is the main feature.

  Furthermore, the present invention is mainly characterized in that the fastener element is attached by sewing along an edge of the fastener tape.

  Furthermore, in the present invention, in plan view, the front end edge in the meshing direction of the fastener element in the pair of upper plates extends to the vicinity of the front end edge of the lower wing plate, and in the front end edge of each upper plate The main feature is that chamfered curved portions are respectively formed at the inner facing corners.

  The main feature of the present invention is that the front end portions of the pair of side walls are arranged closer to the rear opening side than the front end portion of the second element guide portion.

  The present invention is for a hidden slide fastener having a pair of fastener stringers in which opposite side edge portions of a fastener tape are bent and fixed in a U-shape, and a fastener element is attached along a bent edge of the side edge portion. It concerns the slider.

  Here, the case where the front end portions of the pair of upper plates with which the bent portion of the fastener tape introduced into the slider is slidably contacted is set as a rotation fulcrum where the fastener tape is bent by the lateral pulling force will be described. At this time, in the pair of fastener stringers, the distance from the rotation fulcrum to the element rear end is longer than the distance from the rotation fulcrum to the meshing head. For this reason, as a rotational moment for tilting the fastener element, a larger rotational moment force can be applied to the fastener element when the rear end portion of the element is slidably guided than when the meshing head is slidably guided.

  In this way, even if the fastener element immediately before being introduced into the slider is introduced in a posture standing substantially perpendicular to the fastener tape, it is opposite to the meshing head as a portion of the fastener element to be guided first. By guiding the rear end portion of the element located on the side, it is possible to efficiently give a rotational moment for making the posture in a horizontal state with respect to the fastener element efficiently.

  In addition, when the fastener element is sewn with a sewing thread along the edge of the fastener tape, the fastener element is not fixed to the fastener tape integrally. Even if the fastener tape moves, the fastener element does not move integrally with the movement of the fastener tape but remains. However, with respect to the movement direction of the fastener tape along the tape guide passage, the fastener element moves integrally in this direction.

  For this reason, in the movement along the tape guide path of the fastener tape, the element rear end portion of the fastener element moves while slidingly contacting the second element guide. In addition, the meshing head of the fastener element is moved toward the first element guide by the second element guide, and the meshing head can be in sliding contact with the first element guide.

In this way, the rear end portion of the element is guided while being in contact with the second element guide portion, and can be in sliding contact with the first element guide. And the fastener element of the standing state can be made into the attitude | position of a horizontal state by the 2nd element guide part.
In addition, the meshing head of the fastener element supported by the second element guide portion can be reliably tilted to the horizontal posture by slidingly contacting the first element guide portion.

  In the present invention, in order to guide the rear end portion of the element within the slider, the second element guide portion that guides the rear end portion of the element is arranged on the left and right end portions of the lower wing plate from the front edge of the lower wing plate to the rear opening side. The configuration is extended toward the front. In addition, the second element guide portion is configured so as to be opposed to the side surface of the guide column and protrude from the lower wing plate toward the upper plate.

  By configuring in this way, even if the fastener element immediately before being introduced into the slider is in a posture that rises substantially perpendicular to the fastener tape, the rear end portion of the element is guided to efficiently fasten the fastener. It is possible to efficiently give a rotational moment for making the posture in a horizontal state with respect to the element.

  Further, the angle and position of the fastener element when the meshing head of the fastener element is in sliding contact with the first element guide portion can be supported by the second element guide portion so as to be within a predetermined range. Thereby, the meshing head of the fastener element can be brought into sliding contact with the first element guide portion in a stable state.

  In the present invention, as the positional relationship between the second element guide portion and the guide column, the second element guide portion is arranged at the same position as the shoulder opening side end of the guide column or beyond the shoulder opening end in the sliding direction of the slider. It can also be configured. By configuring in this manner, the fastener element can be tilted to a horizontal posture before or when the fastener element enters the element guide path, so that the fastener element can smoothly pass through the slider. Can do.

  In the present invention, the first element guide portion can be formed from the side of the guide column toward the rear opening. Then, a side guide surface having a surface parallel to the sliding direction of the slider, and a front surface that is continuous with the side guide surface and is inclined toward the shoulder opening side and upward may be used. it can. In addition, the first element guide portion and the second element guide portion can be arranged to face each other.

  By configuring in this manner, the fastener element can be efficiently tilted to the horizontal posture by the joint action of the first element guide portion and the second element guide portion. In addition, after the rear end portion of the element comes into sliding contact with the second element guide portion, the meshing head of the fastener element can be brought into sliding contact with the first element guide portion.

  Then, after the fastener element that has been in a posture standing substantially perpendicular to the fastener tape is slightly tilted in the horizontal direction by the second element guide portion, or the fastener element is moved to the second element guide portion. After the sliding contact, the fastener element can be reliably tilted toward the horizontal state by the joint work of the first element guide portion and the second element guide portion.

  As a structure of the 2nd element guide part, it can comprise as a raised part formed from the inner wall of a lower wing board to the inner wall of a side wall. By comprising in this way, a guide surface and / or a guide step part can be comprised in the protruding part. At this time, the structure of the guide surface can be formed as an inclined surface inclined from the lower blade to the side wall, and the guide surface is arranged facing the first element guide portion side. It can be configured as a surface.

  With this configuration, the fastener element can be efficiently tilted to the horizontal posture by the second element guide portion. In addition, with respect to the fastener element which has been in a posture standing substantially perpendicular to the fastener tape, the rotational moment for making the horizontal state is applied from the guide surface of the second element guide part and / or the guide step part to the rear end of the element. Can be efficiently applied to the part. In addition, by configuring the guide surface as an inclined surface, it is possible to efficiently perform the guide on the inclined surface when the fastener element is inclined to the horizontal posture.

  In the present invention, in the Y-shaped tape guide passage, as the configuration on the shoulder opening side that is divided into two branches toward the shoulder opening side of the slider, it is configured to expand while expanding linearly toward the shoulder opening side of the slider, The two-element guide portion may be arranged to extend along the axial direction inclined inward from the axis of the tape guide passage on the shoulder side.

  By comprising in this way, the curvature radius when the bending part of the fastener tape contact | abutted to the front-end edge of a pair of upper board curves with respect to the longitudinal direction of a fastener tape can be comprised large. Thereby, the fastener stringer receiving the tensile force in the lateral direction can be smoothly introduced into the tape guide passage. Further, the rising angle of the fastener element that rises at a substantially right angle with respect to the fastener tape can be suppressed.

  Further, the Y-shaped tape guide passage has a linearly expanded shape, and the axis of the second element guide is inclined inward with respect to the linearly expanded axis. I can leave. By configuring in this way, the fastener element can be moved closer to the first element guide side as it moves to the rear opening side of the slider. Therefore, the fastener element can be smoothly brought into contact with the first element guide surface, and can be inclined to the horizontal state.

  In particular, when the element used is a type that is sewn to the fastener tape with sewing thread, the fastener tape moves due to the lateral pulling force, and the fastener element is left behind and shifted to the side edge side of the fastener tape. Even so, since the distance between the second element guide and the tape guide path is narrower toward the rear opening side of the slider, the shifted fastener element can be forcibly returned to the original position.

  In the present invention, as the start position of the second element guide portion that starts the guide by sliding the element rear end portion, the front of the first element guide portion that starts the guide by sliding the meshing head of the fastener element. It can be configured to be arranged.

  By comprising in this way, before a fastener element contacts a 1st element guide, it can support so that the position, angle, etc. of a fastener element may be in a predetermined range with a 2nd element guide. And since a position, an angle, etc. can be in a predetermined range, the inclination angle of a fastener element can be efficiently made into the horizontal posture direction side by a 2nd element guide.

In the present invention, the front end position on the shoulder opening side of the second element guide portion is arranged in front of the inclined surface located on the lower blade side of the inner wall of the upper plate in the first element guide portion. I can leave.
With this configuration, even if the fastener element immediately before being introduced into the slider is in a posture that rises substantially perpendicular to the fastener tape, the fastener element is first slid on the second element guide portion. Can be touched. And the rotational moment for making a fastener element into the attitude | position of a horizontal state can be made to act ahead of a 2nd element guide part.

  In the present invention, in plan view, the front end edge in the meshing direction of the fastener element in the pair of upper plates extends to the vicinity of the front end edge of the lower wing plate, and the inner facing corners in the front end edge of the pair of upper plates Can be formed with a chamfered curved portion.

  By configuring in this way, even if the fastener element immediately before being introduced into the slider is in a posture that rises substantially perpendicular to the fastener tape, the front edge of the upper plate and the second element guide portion are jointly used. By the action, the fastener element can be tilted to the horizontal posture.

In the present invention, the inner opposing corners at the front edge of each upper plate are each formed in a curved portion shape that is chamfered. In addition, when the fastener tape is in sliding contact with the inner facing corner, when a strong tensile force in the lateral direction acts on the folded portion of the fastener tape, the strong tensile force received by the folded portion of the fastener tape is opposed to the inner side. It can be received at the curved portion formed at the corner. Therefore, it is possible to weaken the concentrated stress acting on the curved portion of the fastener tape.
In this way, it is possible to prevent the fastener tape from being broken even in the process of tilting the fastener element to the horizontal posture that is the meshing posture.

In this invention, it can comprise so that the edge part position of the front-end side in a pair of side wall may be distribute | arranged to the back opening side rather than the edge part position of the front-end side in a 2nd element guide part.
By configuring in this way, when the bent portion of the fastener tape abutting against the front end edges of the pair of upper plates is curved with respect to the longitudinal direction of the fastener tape, the end on the front end side in the second element guide portion The space between the front portion and the front end portion of the pair of side walls can function as a space portion that avoids interference with the fastener element.

  When the bent portion of the fastener tape that is in contact with the front edge of the pair of upper plates is bent along the curved portion shape at the front edge of the pair of chamfered upper plates, the fastener element is It is no longer in contact with the front end and can be curved smoothly.

  In the present invention, in a state before the engaging head of the fastener element is forced to turn in the horizontal posture direction by the first element guide portion, or the fastener tape is moved in the longitudinal direction by the front end edges of the pair of upper plates. On the other hand, in a state before being bent, a rotational moment for rotating the fastener element in the horizontal posture direction can be applied to the element rear end portion of the fastener element by the second element guide portion.

  Then, the fastener tape can be smoothly introduced into the tape guide passage, and the inclination angle of the fastener element when the engagement head of the fastener element is in sliding contact with the first element guide portion is set to the horizontal posture direction side. I can leave.

FIG. 1 is a perspective view of a slider for a hidden slide fastener. (Example) FIG. 2 is a plan view and a cross-sectional view of the slider. (Example) FIG. 3 is a front view of the slider. (Example) FIG. 4 is a cross-sectional view taken along the center line of the slider. (Example) FIG. 5 is an explanatory diagram of the behavior of the meshing element as seen from the element guide surface of the slider. (Explanation) FIG. 6 is a main part explanatory view showing the behavior of the fastener element as seen from the shoulder side. (Example) 7 is a cross-sectional view taken along the line AA in FIG. (Example) 8 is a cross-sectional view taken along the line BB in FIG. (Example) FIG. 9 is a perspective view of a hidden slide fastener slider. (Conventional example 1) FIG. 10 is a perspective view of a hidden slide fastener slider. (Conventional example 2)

  DESCRIPTION OF EMBODIMENTS 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, and various modifications are possible as long as the present invention has a configuration substantially the same as that of the present invention and has similar operational effects. Is possible.

  In the present invention, the front-rear direction refers to the sliding direction of the slider, and the shoulder side of the slider is the front and the rear side is the rear. The left-right direction refers to a direction orthogonal to the slider sliding direction in plan view. The vertical direction refers to the front and back surfaces of the lower wing plate of the slider. The upper plate side is the front side and the lower wing plate side is the back side.

  In addition, the fastener chain for the hidden slide fastener used in the present invention is a type in which a synthetic resin or metal as an element is integrally injected to the fastener tape, a type in which an element formed of metal is crimped to the fastener tape, Alternatively, various types of fastener chains can be used as a fastener fastener for a hidden slide fastener, such as a type in which an element formed in a coil shape or zigzag shape formed in a linear shape is attached to a fastener tape.

  Further, the slider 1 for the hidden slide fastener according to the present invention is such that the opposite side edge portions of the fastener tape 14 are bent and fixed in a U shape as shown in FIGS. 7 and 8, and the bent edge of the side edge portion is fixed. The slider is used for a hidden slide fastener having a pair of fastener stringers to which fastener elements 13 are attached.

  As shown in FIG. 1, the slider 1 includes a lower wing plate 2, a pair of flanges 3 and 4 erected along the left and right side edges of the lower wing plate 2, and a guide column erected on the lower wing plate 2. 5, a handle attachment column 6 provided on the upper surface of the guide column 5, 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 sides of the lower wing plate 2, And a pull handle (not shown) that is rotatably supported by the pull attachment column 6.

  The slider 1 is configured in a bilaterally symmetric shape with a plane that passes through the horizontal center line of the slider 1 and is perpendicular to the lower blade 2 as a mirror surface. The width shape of the lower wing plate 2 in the left-right direction is formed with the same width from the front edge 2a of the lower wing plate 2 to a position slightly behind the rear end of the guide column 5, and then gradually reduced in width, and the rear opening The edges on the 17th side are formed with the same width.

  As shown in FIGS. 1 to 3, the pair of flanges 3, 4 face each other from the pair of side walls 3 a, 4 a erected along the left and right side edges of the lower wing plate 2 and from the upper ends of the side walls 3 a, 4 a. And a pair of upper plates 3b and 4b extending in the front-rear direction of the slider 1 and having a cross-sectional shape formed in an inverted L shape.

  As shown in FIG. 2, each of the side walls 3a and 4a includes a parallel portion 23c from the rear port 17 in a plan view, and an expanded portion 23b that is continuous with the parallel portion 23c and has a width direction expanded toward the front. It is the composition provided with. The front end portion 20 of each side wall 3a, 4a is extended to the vicinity of the position where the width shape in the left-right direction of the lower blade 2 described above starts gradually reducing the width. Further, the width shape in the left-right direction of the lower blade 2 on the front side from the expanded portion 23b is configured as a parallel portion 23a.

  2 shows a plan view of the slider 1 in the left half of FIG. 2 in a plan view of the slider 1, and the first element guide portion 7 and the upper plate 3b are deleted in the right half of FIG. FIG. In the right half of FIG. 2, the deleted first element guide portion 7 and upper plate 3b are shown as virtual shapes using dotted lines.

  In the plan view shown in FIG. 2, the front end edge 21 of each upper plate 3 b, 4 b extends to the periphery of the front end edge 2 a of the lower wing plate 2. Since it is configured in this manner, the lower surface side on the front edge 21 side of each upper plate 3b, 4b is configured as a space portion that is not supported by each side wall 3a, 4a.

  That is, it is preferable that the front end edge 21 of the upper plate 3b, 4b extends forward from the front end portion 20 of each side wall 3a, 4a. The distance between the front edge 21 of the upper plate 3b, 4b and the front end 20 of each side wall 3a, 4a is such that the fastener element 13 attached to the hidden slide fastener does not interfere with the front end 20 of each side wall 3a, 4a. It is desirable to be able to pass through.

  As shown in FIG. 1, the inner facing corners facing each other at the front edge 21 of each of the upper plates 3b, 4b are formed as curved portions 21a that are chamfered. Further, the end face where the upper plates 3b and 4b face each other is configured as an inner end face 21b.

The guide column 5 is erected from the central portion in the left-right direction of the lower blade 2 near the shoulder 16 of the slider 1. On the upper surface of the guide post 5, a gate-type handle attachment post 6 extending in the front-rear direction is provided. Further, on the outer periphery of the guide column 5, a plate-shaped first element guide portion 7 configured to project outward from the outer periphery of the guide column 5 toward the inner end surfaces 21b of the pair of upper plates 3b and 4b. Is provided.
The handle can be supported by the handle attachment column 6 by inserting the annular portion of the handle (not shown) into the handle attachment column 6 of the illustrated example and then crimping the handle attachment column 6.

  As the configuration of the guide pillar 5, as in the PCT / JP2009 / 64927 application related to the applicant of the present application, the body part 19 standing on the lower wing plate 2, and the coated upper plate member fitted and fitted to the body part 19 18 can be divided into two parts. Further, as shown in Patent Documents 1 and 2, the guide column 5 can be integrally formed with the lower blade 2.

  In the structure of the guide pillar 5 shown in FIG. 4, the structural example divided into the trunk | drum 19 and the coating | coated upper board member 18 is shown. On the outer peripheral surface of the body portion 19, a convex portion into which a concave portion formed inside the coated upper plate member 18 is fitted is formed. After the concave portion of the covering upper plate member 18 is fitted into the convex portion formed on the outer peripheral surface of the body portion 19, the leg portion 18a formed at the distal end portion of the covering upper plate member 18 is crimped as shown in FIG. Thus, the coated upper plate member 18 can be fixed to the body portion 19.

  The concave portion of the coated upper plate member 18 can be configured such that the rear end side of the concave portion of the coated upper plate member 18 has a dead end shape. With this configuration, the front and rear end surfaces of the body portion 19 can be clamped between the rear end side and the leg portion 18a in the concave portion of the coated upper plate member 18 that is a dead end.

  As shown in FIGS. 1 and 4, a front guide surface 7 a is formed on the outer peripheral surface of the coated upper plate member 18 so that the front end side of the coated upper plate member 18 is inclined forward. Further, on the inner wall of the covering upper plate member 18, there are side guide surfaces 7b that are continuous from the left and right of the front guide surface 7a and face the lower blade 2 from the side of the guide pillar 5 toward the rear port 17. It is configured.

  In other words, the side guide surface 7b is an inner wall of the plate-like first element guide portion 7 projecting from the guide column 5 and is a surface parallel to the inner wall surface of the lower wing plate 2. On the other hand, the front guide surface 7a is an inclined surface that is 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 side guide surfaces 7b. As shown in FIG. 3, the 1st element guide part 7 is comprised so that it may become the arrangement configuration facing the 2nd element guide part 8 mentioned later.
Although FIG. 1 shows a configuration example in which the forward bending state on the front guide surface 7a is a flat inclined surface, the forward bending state on the front guide surface 7a may be formed in a concave or convex curved surface shape. it can.

On the upper surface of the covering upper plate member 18, a handle attaching column 6 for supporting a handle (not shown) is erected. Even when the guide column 5 is integrally formed with the lower blade 2, the front guide surface 7a and the pair of left and right side guide surfaces 7b are configured as the first element guide portion 7 on the guide column 5. is necessary.
Note that the pulling column 6 can be configured to be attached to the lower wing plate 2 as described in the PCT / JP2009 / 64927 application.

As shown in FIG. 2, a Y-shape that guides the bent portion 14a of the fastener tape 14 bent in a U-shape by the inner end surface 21b of the pair of upper plates 3b, 4b and the outer end surface of the first element guide portion 7. The tape guide passage 12 is configured.
The rear end portion of the first element guide portion 7 extends to the vicinity of the connection portion between the parallel portion 23a and the widened portion 23b of each side wall 3a, 4a.

  The passage surrounded by the inner wall surface of the pair of flanges 3 and 4, the inner wall surface of the lower wing plate 2, the guide column 5, and the first element guide portion 7 guides the fastener element 13 attached to the fastener tape 14. It is configured as an element guide passage 10.

  Further, second element guide portions 8 are formed on the inner walls on the left and right ends of the lower wing plate 2. The second element guide portion 8 is a raised portion that protrudes upward from the inner wall of the lower wing plate 2, and the raised end portion of the raised portion 22 extends from the front edge 2 a of the lower wing plate 2 toward the rear opening 17. It is installed.

  The second element guide portion 8 extends substantially in parallel with the sliding direction of the slider, that is, the front-rear direction, and the rear opening side of the second element guide portion 8 is an expanded portion 23b of each side wall 3a, 4a. The portion that contacts the inner wall surface of the wall ends.

  As shown in FIGS. 1 and 3, the second element guide portion 8 has a guide step portion 8a having a flat surface 24 facing the side walls 3a and 4a, and the guide step portion 8a toward the upper surface of the lower blade 2. And a downwardly inclined guide surface 8b. The flat surface 24 in the guide step portion 8a can be configured as a surface parallel to the upper surface of the lower wing plate 2, or can be configured as a smooth downward inclined surface toward the rear port 17.

  As described above, the guide surface 8b or the guide step portion 8a in the second element guide portion 8 is configured to extend in the axial direction parallel to the horizontal center line of the slider 1 or the slider in plan view as described above. A configuration may be adopted in which the one extends toward the shoulder opening 16 along the axial direction inclined toward the center line in the left-right direction.

  That is, as the element rear end portion 13b of the fastener element 13 slidably guided by the second element guide portion 8 moves to the rear opening 17, it approaches the center line side of the slider 1 in the horizontal direction in plan view. It is necessary to configure the guide surface 8b and / or the guide step 8a.

  Further, as the position of the front end portion of the second element guide portion 8, a configuration is illustrated in which the position of the front end edge 2a of the lower blade 2 is extended in front of the front end of the guide pillar 5, in other words. However, the position of the front end portion of the second element guide portion 8 is extended to a position facing the side surface of the guide column 5 over a length range of more than half of the side surface of the guide column 5 in the front-rear direction. It can also be configured.

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

  With this configuration, when the fastener element 13 is in a horizontal posture, the sewing thread 27 that attaches the fastener element 13 to the fastener tape 14 comes into contact with the upper surface of the lower wing plate 2. It can be kept from rubbing.

As shown in FIG. 6, the connecting portion from the guide step 8a to the guide surface 8b is configured as a smooth convex curved surface, and the connecting portion from the guide surface 8b to the stepped portion 25 is configured as a smooth convex curved surface. Has been.
In the present invention, the guide step portion 8a may be eliminated, and the guide surface 8b may be extended to the left and right ends of the lower blade 2.

  As shown in FIG. 2, a fillet portion 28 is provided along the boundary between the side walls 3a, 4a and the lower wing plate 2, and the fillet portion 28 includes the side walls 3a, 4a and the lower wing plate 2. Is provided in order to increase the mounting strength between them and to improve the moldability during molding.

Next, the smooth operation of the slider 1 will be described in detail with reference to FIGS.
The fastener chain for a hidden slide fastener shown in FIG. 5 shows a type in which a fastener element 13 formed in a coil shape or zigzag shape formed in a linear shape 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 using a sewing thread 27. As shown in FIG. 5, the pair of fastener elements 13 are arranged so that the meshing heads 13a face each other, and the opposite sides of the meshing heads 13a are connected by an inversion portion.

FIG. 5 is a sectional view of the slider 1 in which the upper plates 3b and 4b and the first element guide portion 7 are not shown, and shows the fastener element 13 introduced into the element guide passage 10 of the lower wing plate 2. Yes. FIG. 6 shows that the fastener element 13 introduced into the slider 1 causes the element rear end portion 13b to slidably contact the second element guide portion 8, and the meshing head portion 13a to slidably contact the first element guide portion 7. FIG. 5 is an explanatory view showing a state in which the posture of the fastener element 13 introduced into the element guide passage 10 is changed in a standing posture state.
7 is a cross-sectional view taken along the line AA in FIG. 5, and FIG. 8 is a cross-sectional view taken along the line BB in FIG.

  As can be understood from FIG. 5, the pair of fastener stringers 15 on the front side of the shoulder 16 of the slider 1 is greatly opened by receiving a strong lateral pulling force with the front end edges 21 of the pair of upper plates 3b and 4b as pivot points. It is in the state. At this time, the fastener element 13 stands in a posture close to a right angle with respect to the tape surface of the fastener tape 14 with the meshing head 13a facing upward.

  By sliding the slider 1 in the closing direction (upward direction in FIG. 5), the element rear end portion 13b of the continuous fastener element 13 is sequentially moved to the guide step portion 8a of the second element guide portion 8 of the slider 1 and / or Or, it slides on the guide surface 8b. At this time, the fastener element 13 slidably in contact with the second element guide portion 8 is in a posture in which the engagement head 13a is raised upward due to the influence of a strong lateral pulling force acting on the fastener tape 14.

  When the slider 1 is further slid in the closing direction, a rotational moment is applied to the fastener element 13 so as to tilt the fastener element 13 from the second element guide portion 8 to a horizontal posture. In addition, a torsional force acts to tilt the subsequent fastener element 13 to the horizontal posture through the fastener tape 14 from the preceding fastener element 13 tilted to the horizontal posture, and further, the fastener tape. A tensile force that pulls 14 into the slider 1 acts.

These forces effectively act on the fastener element 13 introduced into the slider 1, and the fastener element 13 in a standing posture comes into sliding contact with the second element guide portion 8, thereby Being inclined to the posture. As shown in FIG. 7, when the meshing head 13a is further slidably contacted with the front guide surface 7a of the first element guide portion 7, the fastener element 13 is further tilted to a horizontal posture. As shown in FIG. 8, the fastener element 13 can be in a horizontal posture.
As shown in FIG. 6, the fastener element 13 in the standing posture gradually tilts to the horizontal posture while rotating in the clockwise direction.

  As described above, in the present invention, when the fastener element 13 in the raised position is introduced into the slider 1, the second position is set so that the fastener element 13 is initially in a horizontal position with respect to the element rear end portion 13b. A tilting action is given from the element guide part 8, and then a tilting action for making the fastener element 13 in a horizontal state is given from the first element guide part 7 to the meshing head 13a.

  In addition, since the pair of side guide surfaces 7b in the first element guide portion 7 is formed continuously with the front guide surface 7a which is an inclined surface, the fastener element 13 tilted in the horizontal state can be smoothly engaged with the fastener element engagement region. Can be introduced.

  Further, as shown in FIG. 7, the distance from the tip of the pair of upper plates 3b, 4b to which the bent portion 14a of the fastener tape 14 introduced into the slider 1 is in sliding contact with the meshing head 13a is greater than the distance from the element. The distance to the end 13b is longer. By utilizing this arrangement, the rotational moment for tilting the fastener element 13 gives a larger rotational moment force when the element rear end 13b is slidably guided than when the meshing head 13a is slidably guided. be able to.

  In addition, the start position of the second element guide portion 8 that starts the guide by sliding the element rear end portion 13b, the start position of the first element guide portion 7 that starts the guide by sliding the meshing head portion 13a, and The configuration is such that the bent portion 14a of the fastener tape 14 is slidably brought into contact with the start position of the tape guide passage 10 where the guide is started.

With this configuration, before the meshing head 13a of the fastener element 13 is forced to rotate in the horizontal posture direction by the first element guide portion 7, or by the front end edges of the pair of upper plates 3b and 4b, the fastener tape 14 Can be applied from the second element guide portion 8 to the element rear end portion 13b before the element is bent in the longitudinal direction.
Further, the fastener element 13 is supported by the second element guide portion 8 so that the rotational moment of the first element guide portion 7 (the front guide surface 7a thereof) is easily applied.

  Therefore, it is possible to smoothly introduce the fastener tape 14 into the tape guide passage 12, and when the meshing head 13a of the fastener element 13 is in sliding contact with the first element guide portion 7, the fastener element 13 is somewhat fixed. The tilt angle can be set to the horizontal posture direction side.

  In particular, as shown in FIG. 7, when the fastener element 13 is sewn with a sewing thread 27 along the edge of the fastener tape 14, the fastener element 13 is integrated with the fastener tape 14. Is not fixed. For this reason, the fastener tape 14 to which a strong pulling force is applied may move in the pulling direction while causing a relative movement with respect to the fastener element 13.

  Even if the fastener tape 14 is moved relative to the fastener element 13 by the lateral pulling force, and the fastener element 13 is left behind in the moving direction of the fastener tape 14, the fastener tape With respect to the movement direction along the 14 tape guide paths 12, the fastener element 13 moves integrally in the same direction.

In the movement of the fastener tape 14 along the tape guide passage 12, the element rear end portion 13 b of the fastener element 13 moves while being in sliding contact with the second element guide 8. Then, the meshing head 13a of the fastener element 13 is moved toward the first element guide 7 by the second element guide 8, and the meshing head 13a can be slidably contacted with the first element guide 7.
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.

  In this way, in the present invention, the fastener element 13 can be smoothly tilted to the horizontal posture, so that the fastener element 13 can be reliably prevented from being caught in the tape guide passage 12. Further, the fastener element 13 is smoothly slid in the element guide passage 10 and can be surely shifted to a required tilting posture necessary for meshing.

  In other words, before the pair of opposing fastener elements 13 are engaged with each other, the pair of fastener elements 13 can be reliably placed in a horizontal posture. Thus, the pair of fastener elements 13 can be reliably engaged with each other, and the so-called puncture state can be reliably prevented.

  In the above description, the configuration using a chain-shaped fastener element as the fastener element in the hidden slide fastener has been described. However, the fastener element in the present invention is not limited to the chain-shaped fastener element. However, as in the invention described in Patent Document 2, the present invention can be suitably applied to a hidden slide fastener that uses so-called service teeth that are attached to a fastener tape at a predetermined interval.

  Even in this case, due to the influence of the fastener stringer to which a strong lateral pulling force is applied, the engagement head side of the engagement tooth rises upward. However, the rear end portion side of the engagement tooth is first guided by the second element guide portion and slightly tilted horizontally, and then the meshing head is tilted and guided by the first element guide portion so as to be further horizontal. be able to.

  Then, the tooth can be inclined in the horizontal state by the second element guide portion and the first element guide portion. In this way, it is possible to reliably prevent the engagement tooth from being caught in the fastener tape guide passage and the occurrence of a so-called puncture state when the pair of engagement teeth are engaged.

  The present invention can be suitably used as a slider for a hidden slide fastener that is attached to an opening of a seat cover or clothing of a seat seat.

DESCRIPTION OF SYMBOLS 1 ... Slider for hidden slide fasteners, 2 ... Lower wing plate, 3a, 4a ... Side wall, 3b, 4b ... Upper plate, 5 ... Guide pillar, 7 ... First element Guide part, 7a ... Front guide surface, 7b ... Side guide surface, 8 ... Second element guide part, 8a ... Guide step part, 8b ... Guide surface, 13 ... Fastener Element, 13a ... meshing head, 13b ... rear end of element, 14 ... fastener tape, 16 ... shoulder opening, 17 ... rear opening , 18 ... coated upper plate member, 19 .... Body part, 21 ... front edge, 22 ... front end , 41 ... slider, 42 ... lower wing plate, 43, 44 ... first flange, 43a, 44a ... upper Plate portion, 45 ... guide pillar, 46 ... second flange, 46c ... taper surface, 51 .... Slider, 52 ... Lower blade, 53, 54 ... Flange, 53a, 54a ... Upper plate part, 55 ... Guide column, 56 ... Inner end face, 57 ... Element guide Part, 58... Element guide passage.

Claims (10)

A hidden slide that engages and disengages each fastener element 13 of a pair of fastener stringers 15 in which the fastener tape 14 is bent and fixed in a U shape, and the fastener element 13 is attached along the end edge of the folded fastener tape 14 A zipper slider 1,
The slider 1 includes a lower wing plate 2,
A pair of side walls 3a, 4a erected along both side edges in the left-right direction orthogonal to the sliding direction of the slider 1 in the lower blade 2,
A pair of upper plates 3b, 4b respectively extending in directions approaching each other from the upper ends of the pair of side walls 3a, 4a;
A guide column 5 erected from the lower blade 2 on the shoulder 16 side of the slider 1,
A first element guide portion 7 formed to protrude from the outer peripheral portion of the guide pillar 5;
A Y-shaped tape guide for guiding the bent portion 14a of the fastener tape 14 bent in the U-shape by the inner end surface 21b of the pair of upper plates 3b, 4b and the outer end surface of the first element guide portion 7. Aisle 12,
A second element guide portion 8 extending from the front edge of the lower wing plate 2 toward the rear port 17 on the left and right end portions of the lower wing plate 2;
With
The second element guide portion 8, the upper plate 3b from the lower wing plate 2 in the side of the guide post 5, Ri Na and raised toward the 4b,
Of the tape guide passage 12, the Y-shaped shoulder opening side tape guide passage 12 that is bifurcated toward the shoulder opening 16 side of the slider 1 expands while spreading linearly toward the shoulder opening 16 side of the slider 1. ,
The second element guide portion 8 is extended along an axial direction inclined inward from the axis of the shoulder opening side tape guide passage 12.
Hidden slide fastener slider characterized by that.   2. The concealment according to claim 1, wherein the second element guide portion 8 is arranged at the same position as or over the shoulder-mouth-side tip of the guide column 5 in the sliding direction of the slider 1. Slider for slide fastener. The first element guide portion 7 is formed from the side of the guide column 5 toward the rear opening, and has a side guide surface 7b having a surface parallel to the sliding direction of the slider 1,
A front guide surface 7a that is continuous with the side guide surface 7b and is inclined toward the shoulder opening 16 and upward, and the first element guide portion 7 faces the second element guide portion 8. The hidden slide fastener slider according to claim 1 or 2, wherein the slider is a hidden slide fastener. The said 2nd element guide part 8 is a protruding part formed from the inner wall of the lower wing board 2 to the inner wall of the side walls 3a and 4a, The hidden slide fastener for any one of Claims 1-3 characterized by the above-mentioned slider.   The raised portion has an inclined surface inclined from the lower blade 2 toward the side walls 3a and 4a, and the inclined surface faces the first element guide portion 7 side. The slider for a hidden slide fastener according to claim 4. The first element guide portion where the start position of the second element guide portion 8 that starts the guide by sliding the element rear end portion 13b slidably contacts the meshing head portion 13a of the fastener element 13 and starts the guide The slider for a hidden slide fastener according to any one of claims 1 to 5 , wherein the slider is arranged in front of the slider. The shoulder-edge-side front end of the second element guide portion 8 is ahead of the inclined surface located on the lower wing plate 2 side in the first element guide portion 7 with respect to the inner walls of the upper plates 3b and 4b. The hidden slide fastener slider according to claim 1 , wherein the slider is a hidden slide fastener. The slider for a hidden slide fastener according to any one of claims 1 to 7 , wherein the fastener element (13) is attached by sewing along an edge of the fastener tape (14). In plan view, the front end edge 21 in the meshing direction of the fastener element 13 in the pair of upper plates 3b, 4b extends to the vicinity of the front end edge 2a of the lower wing plate 2,
The concealment according to any one of claims 1 to 8 , wherein a chamfered curved portion 21a is formed at an inner facing corner portion of the front end edge 21 of each of the upper plates 3b and 4b. Slider for slide fastener. 10. The hidden slide fastener according to claim 9 , wherein the front end portion 20 of the pair of side walls 3 a and 4 a is disposed closer to the rear opening 17 than the front end portion 22 of the second element guide portion 8. slider.

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