Patent Publication Number: US-9427052-B2

Title: Slider fitted with stopping mechanism

Description:
This application is a national stage application of PCT/JP2011/080291, which is incorporated herein by reference. 
     TECHNICAL FIELD 
     The invention relates to a slider for a slide fastener provided with a stopping mechanism using a stopping pawl body and relates particularly to a slider whose slider body is molded by press working and in which the stopping mechanism can be stably operated. 
     BACKGROUND ART 
     The slide fastener is attached to an opening of clothing or a bag, for example, and left and right element rows are meshed or separated by sliding a slider, whereby clothing, a bag, or the like can be easily opened and closed. Regarding the sliders used for the slide fastener, there has been known the slider which has a stopping mechanism capable of maintaining a stopped state of the slider when the slider is stopped with respect to the element row. 
     Examples of such a slider provided with a stopping mechanism are disclosed in Japanese Examined Utility Model Application Publication No. 45-7842 (Patent Document 1) and Japanese Unexamined Utility Model Application Publication No. 53-61203 (Patent Document 2). 
     A slider  100  provided with a stopping mechanism described in the Patent Document 1 has a slider body  110 , a tab  106  having an attaching shaft portion  107 , a stopping pawl body  120  assembled on the slider body  110 , and a cover body  130  holding the attaching shaft portion  107  of the tab  106  and, at the same time, storing the stopping pawl body  120  inside, as shown in  FIG. 16 . 
     In the slider  100 , the slider body  110  has upper and lower blades  111  and  112 , a diamond  113  connecting front ends of the upper and lower blades  111  and  112 , flange portions  114  arranged at left and right side edge portions of the upper and lower blades  111  and  112 , forward and rearward columns  115  and  116  provided upright on the upper blade  111 , and front and rear protuberances  117  extending inside from the forward and rearward columns  115  and  116  along a slider length direction. 
     Further, an element guide passage is formed between the upper and lower blades  111  and  112  of the slider body  110 , and the upper blade  111  is provided with a pawl hole  118  extending through the upper blade  111  in a height direction of the slider  100  and a recess  119  into which a portion of the stopping pawl body  120  fitted. Furthermore, a fitting portion into which a portion of the cover body  130  is fitted is formed at each of the front ends (front surface side of the diamond  113 ) and the rear end of the slider body  110 . 
     The stopping pawl body  120  has a resilient piece  121  disposed to be inclined upward toward the rear of the stopping pawl body  120 , left and right projecting pieces  122  arranged at a lower end of a front end and extending outward along a width direction of the slider  100 , and a pawl portion  123  provided perpendicularly at a rear end. The pawl portion  123  of the stopping pawl body  120  is formed to be capable of advancing into the element guide passage through the pawl hole  118  of the slider body  110 . The stopping pawl body  120  is positioned with respect to the slider body  110  by being covered on the front and rear protuberances  117  in the slider body  110  and, at the same time, inserting the left and right projecting pieces  122  into the recess  119  of the slider body  110 . 
     The cover body  130  has a box-shaped cover main body and first and second attaching pieces  131  and  132  provided perpendicularly from front and rear ends of the cover main body, and the cover main body has a notched tab holding portion (space portion) for holding the attaching shaft portion  107  of the tab  106 . 
     In the cover body  130 , the forward and rearward columns  115  and  116  of the slider body  110  are stored in the cover main body, and, at the same time, the first and second attaching pieces  131  and  132  are fitted in the fitting recesses of the slider body  110 , whereby the cover body  130  is attached to the slider body  110 . 
     When the slider  100  of the Patent Document 1 is assembled, the attaching shaft portion  107  of the tab  106  is placed on the upper blade  111  of the slider body  110 , and the stopping pawl body  120  is further placed on it. At this time, the stopping pawl body  120  is disposed to cover the protuberances  117  of the slider body  110 , and, at the same time, the projecting piece  122  of the stopping pawl body  120  is inserted into the recess  119  of the slider body  110 , whereby the stopping pawl body  120  is positioned with respect to the slider body  110 . The pawl portion  123  of the stopping pawl body  120  is inserted into the pawl hole  118  of the slider body  110 . 
     After that, the cover body  130  is mounted on the slider body  110  on which the attaching shaft portion  107  of the tab  106  and the stopping pawl body  120  are placed, whereby the slider  100  provided with the stopping mechanism is assembled. In the slider  100  of the Patent Document 1 thus assembled, since a movable range of the stopping pawl body  120  pressed by the resilient piece  121  is regulated by the protuberances  117  of the slider body  110 , an advancing length of the pawl portion  123  advancing the element guide passage is limited to a certain size. 
     Thus, in the slider  100  of the Patent Document 1, when the tab  106  is not operated, the pawl portion  123  of the stopping pawl body  120  advances into the element guide passage by a predetermined length to engage with a fastener element, whereby the stopping mechanism of the slider  100  can be effectively operated. When the slider  100  is slid by pulling the tab  106 , the stopping pawl body  120  is lifted up by the attaching shaft portion  107  of the tab  106 , and the pawl portion  123  exits from the element guide passage; therefore, the slider  100  can be smoothly slid along an element row. 
     Meanwhile, a slider  140  provided with a stopping mechanism described in the Patent Document 2 has a slider body  150 , a tab  146  having an attaching shaft portion  147 , a stopping pawl body  142  assembled on the slider body  150 , a resilient member  149  provided with a tongue piece resiliently pressing the stopping pawl body  142 , and a cover body  160  holding the attaching shaft portion  147  of the tab  146  and, at the same time, storing the stopping pawl body  142  and the resilient member  149  inside, as shown in  FIGS. 17 and 18 . 
     In the Patent Document 2, the slider body  150  has upper and lower blades  151  and  152 , a diamond  153  connecting front ends of the upper and lower blades  151  and  152 , and flange portions  154  arranged at left and right side edge portions of the upper and lower blades  151  and  152 . 
     The slider body  150  is molded by press-working a metal plate, and on a upper surface side of an upper blade  151 , it is difficult to provide a projection formed by, for example, die cast molding, such as the forward and rearward columns  115  and  116  and the front and rear protuberances  117  provided in the slider body  110  of the Patent Document 1 described above. 
     Further, an element guide passage is provided between the upper and lower blades  151  and  152  of the slider body  150 , and the upper blade  151  is provided with a pawl hole  155  extending through the upper blade  151  in a slider height direction and a recess  156  into which one end of the stopping pawl body  142  is fitted. Furthermore, a recess groove portion  157  into which a portion of the cover body  160  is inserted to be engaged is provided at a front end of the slider body  150 . 
     The stopping pawl body  142  has a main body provided across the attaching shaft portion  147  of the tab  146 , a fitting portion provided at one end (front end) of the main body and fitting into the recess  156  of the slider body  150 , and a pawl portion  143  provided at the other end (rear end) of the main body and inserted into the pawl hole  155  of the slider body  150 . 
     The cover body  160  has a box-shaped cover main body  161 , a first attaching piece  162  provided perpendicularly from the front end of the cover main body  161  and a second attaching piece  163  provided perpendicularly from the rear end of the cover main body  161 , and the cover main body  161  has a notched tab holding portion (space portion) for holding the attaching shaft portion  147  of the tab  146 . Further, holding groove portions  164  engaging/attaching to hold the resilient member  149  are formed in an inner surface of a front wall portion and an inner surface of a rear wall portion of the cover main body  161 . 
     When the slider  140  of the Patent Document 2 is assembled, the resilient member  149  is first attached to an inside of the cover body  160  and then held. Next, the attaching shaft portion  147  of the tab  146  and the stopping pawl body  142  are sequentially placed on the upper blade  151  of the slider body  150 . At this time, the fitting portion of the stopping pawl body  142  is inserted into the recess  156  of the slider body  150 , whereby the stopping pawl body  142  is positioned with respect to the slider body  150 . Further, the pawl portion  143  of the stopping pawl body  142  is inserted into the pawl hole  155  of the slider body  150 . 
     Subsequently, the slider body  150  on which the attaching shaft portion  147  of the tab  146  and the stopping pawl body  142  are placed is covered with the cover body  160  holding the resilient member  149 , and moreover, a tip portion of the second attaching piece  163  in the cover body  160  is caulked to be bent inward, whereby the cover body  160  is attached to the slider body  150 . According to this constitution, the slider  140  of the Patent Document 2 is assembled. 
     In the slider  140  of the Patent Document 2, the slider body  150  is molded by press-working a metal plate, as described above, and even when the projection is not provided on an upper surface side of the upper blade  151 , the stopping pawl body  142  can be attached to the slider body  150  at a predetermined position; therefore, the slider  140  can be easily assembled. 
     Further, in the slider  140  of the Patent Document 2, since the stopping pawl body  142  is held rotatably (or slidably) with a portion fitted into the recess  156  of the upper blade  151  as a fulcrum, the stopping pawl body  142  is lifted by operating the tab  146 , whereby the pawl portion  143  of the stopping pawl body  142  can be easily exited from the element guide passage. When the operation of the tab  146  is terminated, the stopping pawl body  142  receives a pressing force (biasing force) from the resilient member  149  to make the pawl portion  143  advance into the element guide passage; therefore, the stopping mechanism can be operated. 
     CITATION LIST 
     Patent Documents 
     
         
         Patent Document 1: Japanese Examined Utility Model Application Publication No. 45-7842 
         Patent Document 2: Japanese Unexamined Utility Model Application Publication No. 53-61203 
       
    
     SUMMARY OF THE INVENTION 
     Problems to be Solved by the Invention 
     When the slider body  150  is molded by press working as in the slider  140  described in the Patent Document 2, the press molded slider body  150  is often constituted of a metal material such as copper alloy and has an advantage that the corrosion resistance is better than that of a slider body obtained by die-cast molding of a metal material such as zinc alloy. In the press molded slider body  150 , in general, since the slider body  150  is easily deflected when receiving stress, occurrence of breakage of the slider body  150  such as chipping and cracking is suppressed, and the slider body  150  is highly durable. 
     Meanwhile, when the slider body  150  is press molded, as described above, it is difficult for the upper blade  151  to provide a projection such as the forward and rearward columns  115  and  116  and the front and rear protuberances  117  provided in the slider body  110  of the Patent Document 1. Thus, in the conventional press molded slider body  150 , the recess  156  is provided on the upper surface side of the upper blade  151  instead of the projection. 
     When the recess  156  is provided in the upper blade  151 , a portion of the stopping pawl body  142  is fitted into the recess  156  of the upper blade  151  at the time of assembling the slider  140 , for example, whereby the stopping pawl body  142  can be positioned with respect to the slider  140 . In the assembled slider  140 , the stopping pawl body  142  can be held to prevent the position of the stopping pawl body  142  from being deviated. When the pawl portion  143  of the stopping pawl body  142  is made to advance or retreat with respect to the element guide passage, the stopping pawl body  142  can be rotated with the front end of the stopping pawl body  142  fitted into the recess  156  of the upper blade  151  as a fulcrum. 
     However, in the slider body  150  thus press molded, the dimensional accuracy and the shape accuracy are lower than those of a slider body formed by die cast molding, for example, and when a plurality of the slider bodies  150  are press molded, the shape and dimension of the recess  156  formed in the upper blade  151  by punch pressing may be varied between each of the slider bodies  150 . 
     As described above, when the shape and dimension of the recess  156  of the upper blade  151  are varied, the stopping pawl body  142  cannot be sufficiently fitted into the recess  156  of the upper blade  151  at the time of assembling the slider  140 , and the position and posture of the stopping pawl body  142  with respect to the slider body  150  may become unstable, and this causes occurrence of a defect and failure of the stopping mechanism. 
     Even when the stopping pawl body  142  is fitted into the recess  156  of the upper blade  151 , in the case where the shape and dimension of the recess  156  of the upper blade  151  are varied, the movement (swing) of the stopping pawl body  142  may be inhibited. 
     For example, in a case where the shape of the recess  156  formed in the upper blade  151  is distorted, when the pawl portion  143  of the stopping pawl body  142  is retreated from the element guide passage by operating the tab  146  of the slider  140 , in the stopping pawl body  142  a portion fitted into the recess  156  of the upper blade  151  to become a fulcrum is easily caught by the recess  156  concerned. In this case, such a state that the stopping pawl body  142  is caught is held by receiving a biasing force from the resilient member  149 , so that the movement of the stopping pawl body  142  may be fixed (the stopping pawl body  142  does not move). 
     As described above, when the movement of the stopping pawl body  142  is interfered by the recess  156  of the upper blade  151 , even if the stopping pawl body  142  receives the pressing force from the resilient member  149  when the operation of the tab  146  is terminated, the pawl portion  143  of the stopping pawl body  142  cannot be made to advance (project) into the element guide passage, so that the stopping mechanism of the slider  140  may not be operated. 
     Since an end of the stopping pawl body  142  on the side accommodated in the recess  156  is relatively angular, when the corner is a rotating support part, this corner is caught in the recess, whereby the movement of the stopping pawl body  142  may be interfered. This is one of causes that the stopping mechanism of the slider  140  is not operated. 
     Even in the slider  100  described in the Patent Document 1, for example, the projecting piece  122  of the stopping pawl body  120  is fitted into the recess  119  of the upper blade  111 . Thus, when the shape and dimension of the recess  119  formed in the upper blade  111  are varied, as in the slider  140  of the Patent Document 2, when the pawl portion  123  of the stopping pawl body  120  is retreated from the element guide passage by operating the tab  106 , the projecting piece  122  as a rotating support part of the stopping pawl body  120  is caught between the recess  119  of the upper blade  111  and the cover body  130  and the stopping pawl body  120  does not move, and the stopping mechanism of the slider  100  may not be operated. 
     Also in the projecting piece  122  of the stopping pawl body  120  shown in the Patent Document 1, since a portion as a rotating support part is relatively angular, when the corner is in contact with a portion of the recess  119  when the stopping pawl body rotates, the movement of the stopping pawl body  120  may be interfered. 
     In view of the above problems, a specific object of the invention is to provide a slider in which, in order to prevent an influence of working accuracy in press molding, a stopping pawl body is held at a predetermined position with respect to a slider body and rotated without using a recess formed in the slider body, whereby the stopping mechanism can be stably operated, and, in addition, assembly operation of the slider can be smoothly performed. 
     Means for Solving the Problems 
     In order to achieve the above object, a slider provided with a stopping mechanism provided by the invention has, as a basic constitution, a slider body molded by press working, a tab having an attaching shaft portion, a stopping pawl body, a resilient piece provided integrally with or separately from the stopping pawl body and resiliently pressing the stopping pawl body, and a cover body storing the stopping pawl body and the resilient piece and attached to the slider body, and the stopping pawl body has a main body disposed across the attaching shaft portion of the tab and a pawl portion extending from one end side of the main body and capable of engaging a fastener element on an element guide passage of the slider body. In the slider provided with a stopping mechanism, as the most important feature, the stopping pawl body has an extending portion, which extends from the other end side of the main body, extends in a direction approaching an upper blade, and is curved or bent in a direction of a shoulder opening of the slider body, and a projecting portion which projects from a tip portion of the extending portion and is held by the cover body, the extending portion has a rotating support part which is contact with an upper surface of the upper blade of the slider body and becomes a fulcrum when the stopping pawl body rotates, a contact surface with which the rotating support part of the upper blade is in contact is formed into at least a flat surface, and the cover body has a pawl body holding portion holding the projecting portion of the stopping pawl body. 
     In the slider provided with a stopping mechanism according to the invention, the flat surface is preferably a main surface of the upper blade. Further, the projecting portion of the stopping pawl body is preferably stored and held in the pawl body holding portion of the cover body. 
     Furthermore, it is preferable that a recess is provided on the upper surface side of the upper blade, and the stopping pawl body has an insertion piece provided perpendicularly from the other end side of the main body and inserted into the recess of the upper blade. In this case, it is particularly preferable that a pair of the extending portions and a pair of the projecting portions are provided, and the insertion piece is provided between a pair of the extending portions and between a pair of the projecting portions. 
     Furthermore, it is preferable that the tip portion of the extending portion is spaced apart from the upper blade when the tab is not operated. 
     In the slider provided with a stopping mechanism of the invention, it is preferable that the projecting portion of the stopping pawl body projects from the tip portion of the extending portion in a slider width direction, and the pawl body holding portion is formed at left and right side wall portions of a cover main body in the cover body. 
     Effects of the Invention 
     As a result of studies on and improvement of a constitution in which in order to stably operate a stopping mechanism in a slider provided with the stopping mechanism having the press molded slider body, a stopping pawl body is held at a predetermined position with respect to the slider body and, at the same time, can be rotated without using a recess of an upper blade easily affected by working accuracy in press molding, the present inventors have found that a held portion of the stopping pawl body and a rotating support part may be formed separately and have completed the invention. 
     Namely, a slider provided with a stopping mechanism according to the invention has a slider body, a tab having an attaching shaft portion, a stopping pawl body, a resilient piece provided integrally with or separately from the stopping pawl body, and a cover body. The slider body is press molded, and a flat surface hardly affected by working accuracy according to press molding is formed on an upper surface side of an upper blade. 
     The stopping pawl body has a main body, a pawl portion extending from one end side of the main body, an extending portion extending from the other end side of the main body, and a projecting portion projecting from a tip portion of the extending portion, and the extending portion is provided with a curved portion or a bent portion curved or bent in a direction of a shoulder opening of the slider body from a direction extending to approach the upper blade and, at the same time, provided with a rotating support part in contact with the flat surface of the upper blade in the slider body. The projecting portion is stored and held in a pawl body holding portion of the cover body. 
     As described above, the extending portion provided with the rotating support part and the projecting portion are separately provided in the stopping pawl body of the invention, and the projecting portion of the stopping pawl body is held in the pawl body holding portion of the cover body, whereby even if a recess formed in the upper blade as with a conventional press molded slider body, for example, is not used, the stopping pawl body is positioned at a predetermined position with respect to the slider body and can be held stably. 
     In the slider of the invention, the rotating support part of the stopping pawl body is placed on the flat surface of the upper blade; therefore, when the pawl portion of the stopping pawl body is lifted against a biasing force of the resilient piece in response to operation of the tab and retreated from the element guide passage, or when the pawl portion is advanced (returned) into the element guide passage by receiving the biasing force of the resilient piece when the operation of the tab is terminated, the stopping pawl body can be smoothly rotated (swung) without using the recess formed in the upper blade. In the invention, since the movement of the stopping pawl body is thus hardly affected by the working accuracy according to press molding, it is possible to prevent occurrence of such a problem that the stopping pawl body is caught by the recess of the upper blade, so that the stopping pawl body does not move as in a conventional slider. 
     In the stopping pawl body of the invention, a rotating support part is provided between the main body pressed by the resilient piece and the projecting portion, and the projecting portion itself is configured to hardly directly receive the biasing force of the resilient piece. Thus, even if the projecting portion of the stopping pawl body is caught by the upper blade or the pawl body holding portion of the cover body, such a state that the stopping pawl body is caught is held (fixed) by receiving the biasing force of the resilient piece hardly occurs. 
     The projecting portion of the stopping pawl body and the rotating support part are provided separately; therefore, even if the projecting portion is caught by the upper blade and the pawl body holding portion of the cover body when the pawl portion of the stopping pawl body is lifted, the main body of the stopping pawl body is rotated with the rotating support part as a fulcrum by biasing the stopping pawl body with the resilient piece, whereby the pawl portion can be advanced into the element guide passage. 
     Namely, in the slider of the invention, the stopping pawl body is held at a predetermined position without using the recess portion of the upper blade easily affected by the working accuracy according to press molding, and, at the same time, smooth movement of the stopping pawl body can be secured; therefore, factors causing a defect and failure of the stopping mechanism are reduced, and the stopping mechanism using the stopping pawl body can be stably functioned for a long period of time. 
     In the slider provided with a stopping mechanism of the invention, the flat surface is configured as a main surface of the upper blade. Here, the main surface of the upper blade means a flat portion having a largest area in a surface of the upper blade. When the rotating support part of the stopping pawl body is thus placed on the flat surface as the main surface of the upper blade, the stopping pawl body can be more smoothly rotated. 
     In the slider of the invention, the projecting portion of the stopping pawl body is stored and held in the pawl body holding portion of the cover body by an upper surface of the upper blade and the cover body, and it is particularly preferable that the projecting portion is loosely fitted into the pawl body holding portion. According to this constitution, when the stopping pawl body rotates, it is possible to reduce or avoid a possibility that the projecting portion of the stopping pawl body is caught by the pawl body holding portion of the cover body. 
     In the slider of the invention, the recess portion is provided on the upper surface side of the upper blade, and the stopping pawl body has an insertion piece provided perpendicularly from the other end side of the main body and inserted into the recess of the upper blade. In this case, when the stopping pawl body is placed on the slider body in a process of assembling the slider, the insertion piece of the stopping pawl body is inserted into the recess portion of the upper blade, whereby since the stopping pawl body can be easily positioned with respect to the slider body, the slider can be smoothly assembled. 
     In the above case, a pair of the extending portions and a pair of the projecting portions are provided, and the insertion piece is provided between a pair of the extending portions and between a pair of the projecting portions. In the case where the stopping pawl body is thus configured, when the stopping pawl body is formed from a flat metal plate, for example, the insertion piece capable of being inserted into the recess portion of the upper blade can be easily provided. 
     In the slider of the invention, as described above, when the projecting portion of the stopping pawl body is held by the cover body, the stopping pawl body is mounted at a predetermined position; therefore, in the insertion piece of the stopping pawl body, the stopping pawl body may be positioned only until the cover body is mounted on the slider body. When the insertion piece of the stopping pawl body is caught by the recess portion of the upper blade when the stopping pawl body swings, smooth swing of the stopping pawl body may be inhibited. Thus, it is preferable that the insertion piece of the stopping pawl body is loosely fitted into the recess portion of the upper blade (in other words, is loosely inserted in a floating state). 
     In the slider of the invention, since the tip portion of the extending portion in the stopping pawl body is provided to be spaced apart from the upper blade when the tab is not operated, when the stopping pawl body is rotated to retreat the pawl portion from the element guide passage, a space where the tip portion of the extending portion can move down can be secured. When the pawl portion retreats from the element guide passage, a possibility that the tip portion of the extending portion is strongly pressed against the upper blade and caught by the upper blade can be reduced or avoided. Thus, the movement of the stopping pawl body can be more stably secured. 
     In the slider of the invention, the projecting portion of the stopping pawl body projects from the tip portion of the extending portion in a slider width direction, and the pawl body holding portion is provided at left and right side wall portions of the cover main body in the cover body. When the projecting portion is held in the pawl body holding portion of the cover body, the stopping pawl body can be stably held at a predetermined position, particularly a predetermined position in a slider length direction. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a perspective view showing a state in which a slider provided with a stopping mechanism according to a first embodiment of the invention is exploded. 
         FIG. 2  is a side view showing a stopping pawl body provided in the slider. 
         FIG. 3  is a front view of the stopping pawl body. 
         FIG. 4  is a perspective view showing a cover body provided in the slider. 
         FIG. 5  is a side view of the cover body. 
         FIG. 6  is a side view of the slider. 
         FIG. 7  is a cross-sectional view showing a state before the cover body is mounted on the slider body on which an attaching shaft portion of a tab and the stopping pawl body are placed. 
         FIG. 8  is a cross-sectional view showing a state in which a stopping mechanism of the slider operates. 
         FIG. 9  is a cross-sectional view showing a state in which the stopping mechanism of the slider is released. 
         FIG. 10  is a perspective view showing a cover body according to a modification of first embodiment. 
         FIG. 11  is a perspective view showing a stopping pawl body of a slider provided with a stopping mechanism according to a second embodiment of the invention. 
         FIG. 12  is a cross-sectional view showing a relevant portion of the slider. 
         FIG. 13  is a perspective view showing a stopping pawl body of a slider provided with a stopping mechanism according to a third embodiment of the invention. 
         FIG. 14  is a perspective view showing a cover body of the slider. 
         FIG. 15  is a cross-sectional view showing a slider provided with a stopping mechanism according to a fourth embodiment of the invention. 
         FIG. 16  is a cross-sectional view showing a conventional slider provided with a stopping mechanism. 
         FIG. 17  is a perspective view showing another conventional slider provided with a stopping mechanism. 
         FIG. 18  is a cross-sectional view of the slider. 
     
    
    
     MODES FOR CARRYING OUT THE INVENTION 
     Hereinafter, preferred embodiments of the invention will be described in detail with reference to drawings, using embodiments. The invention is not limited at all to the embodiments described below, and a variety of modifications can be made as long as substantially the same constitution as the invention is obtained and similar operation and effect are provided. For example, in the invention, materials of components constituting a slider are not limited particularly and can be changed arbitrarily. 
     First Embodiment 
       FIG. 1  is a perspective view showing a state in which a slider provided with a stopping mechanism according to a first embodiment of the invention is exploded.  FIGS. 2 and 3  are respectively side view and front views showing a stopping pawl body provided in the slider, and  FIGS. 4 and 5  are respectively perspective view and side view showing a cover body provided in the slider.  FIG. 6  is a side view of the slider being in an assembled state. 
     In the following description, a longitudinal direction of the slider means a direction (length direction of the slider) parallel to a sliding direction of the slider, a direction in which the slider is slid to mesh left and right element rows with each other is forward (shoulder opening side direction), and a direction in which the slider is slid to separate the left and right element rows from each other is rearward (rear opening side direction). 
     A vertical direction of the slider means a height direction of the slider, a direction on the side on which a tab is attached to a slider body is upward, and a direction opposite to this is downward. A horizontal direction of the slider is a direction perpendicular to the sliding direction of the slider and means a width direction of the slider. 
     A slider  1  according to the first embodiment is one of components of a slide fastener and is configured as a slider  1  provided with a stopping mechanism in which a stopped state of the slider  1  can be held when the slider  1  is stopped with respect to an element row  5  (see,  FIG. 8 ). The slider  1  has a slider body  10 , a tab  6  having an attaching shaft portion  7  at one end, a stopping pawl body  20  provided integrally with a resilient piece  29 , and a cover body  30  mounted on the slider body  10 . 
     In the above case, the slider body  10 , the tab  6 , and the cover body  30  are formed into a predetermined shape by press-working a metal plate such as a copper alloy plate, and the stopping pawl body  20  is formed into a predetermined shape by press-working a metal plate such as a stainless plate. In the invention, although only the press-molded slider body  10  is used, a method of forming the tab  6 , the stopping pawl body  20 , and the cover body  30  are not limited particularly. 
     The slider body  10  has an upper blade  11 , a lower blade  12  provided to be spaced apart from the upper blade  11 , a diamond  13  connecting front ends of the upper and lower blades  11  and  12  (shoulder opening side ends), and flange portions  14  arranged at left and right side edges of the upper and lower blades  11  and  12 . In the front end of the slider body  10 , an engagement recess portion  15  used for engaging a forward attaching piece  32  of the cover body  30  to be described later is provided from an upper surface side of the upper blade  11  to a lower surface side of the lower blade  12  through a front surface side of the diamond  13 . 
     Further, in the front end of the slider body  10 , left and right shoulder openings are formed while holding the diamond  13  in between, and a rear opening is formed in a rear end of the slider body  10 . Further, a Y-shaped element guide passage  16  communicating the left and right shoulder opening with the rear opening is formed between the upper and lower blades  11  and  12 . 
     A flat surface  11   a  as a main surface is provided on the upper surface side of the upper blade  11  and is a surface formed without being directly subjected to press-working applied to a metal plate. The upper blade  11  has a pawl hole  11   b  into which a pawl portion  22 , which will be described later, of the stopping pawl body  20  is inserted and a recess portion  11   c  which is provided more forward than the pawl hole  11   b  and in which an insertion piece  25 , which will be described later, of the stopping pawl body  20  is inserted. In a rear end of the upper blade  11 , a rearward engaging portion  11   d  engaged by caulking a rearward attaching piece  33 , which will be described later, of the cover body  30  is provided. 
     As shown in  FIGS. 2 and 3 , the stopping pawl body  20  of the first embodiment has a main body  21  having a shape bent to open downward, a pawl portion  22  provided perpendicularly from a rear end of the main body  21  and inserted into a pawl hole  11   b  of the upper blade  11 , a pair of left and right extending portions  23  extending from a front end of the main body  21  and curved forward, a pair of projecting portions  24  projecting from a tip portion of each of the extending portions  23  toward outside in the horizontal direction, an insertion piece  25  provided perpendicularly from the front end of the main body  21  to be held between the left and right extending portions  23 , and a resilient pieces  29  extending on the upper surface side of the main body  21 . 
     The main body  21  of the stopping pawl body  20  has an intermediate portion extending along a slider length direction, a front end portion extending while curving from a front end of the intermediate portion, and a rear end portion extending while curving from a rear end of the intermediate portion, and the main body  21  includes a space storing the attaching shaft portion  7  of the tab  6 . 
     The width dimension of the pawl portion  22  is smaller than that of a rear end of the main body  21 , and the pawl portion  22  extends downward parallel to the rear end of the main body  21 . The pawl portion  22  has at its tip portion a gradually decreasing portion which gradually decreases the width dimension of the pawl portion  22  toward the tip portion. 
     The left and right extending portions  23  extends downward approaching the upper blade  11  from the front end of the main body  21  while holding the insertion piece  25  in between and further extends forward (shoulder opening direction side of the slider body  10 ) through a curved portion  23   a . When the slider  1  is configured so that the stopping pawl body  20  is attached to the slider body  10 , the extending portion  23  (particularly, the curved portion  23   a ) is in contact with a smooth flat surface  11   a  of the upper blade  11 , and an outer peripheral surface (curved surface) of a curved portion  23   a  in the extending portion  23  is a contact surface in contact with the flat surface  11   a  of the upper blade  11 . 
     The extending portion  23  (particularly, a curved surface of the extending portion  23 ) functions as a rotating support part, which is in contact with the flat surface  11   a  of the upper blade  11  and supports rotation (swing) of the stopping pawl body  20  when the stopping pawl body  20  is lifted to retreat the pawl portion  22  from the element guide passage  16 , as described later, and when the pawl portion  22  is made to advance into the element guide passage  16 . 
     The tip portion of the extending portion  23  is formed to be inclined upward from the curved portion  23   a  of the extending portion  23  to a tip edge so as to be floated by being spaced apart upward from an upper surface (flat surface  11   a ) of the upper blade  11  (see,  FIG. 8 ) when the stopping mechanism operates in the slider  1  (in other words, when the tab  6  is not operated). 
     According to this constitution, when the tab  6  of the slider  1  is not operated, a gap portion is provided between the tip portion of the extending portion  23  and the upper blade  11 ; therefore, the gap portion can be used as a movable region of the extending portion  23  when the stopping pawl body  20  rotates to lift the pawl portion  22 . Accordingly, when the rotation of the stopping pawl body  20  is smoothed, and, at the same time, when the pawl portion  22  is lifted, a possibility that the tip portion of the extending portion  23  is strongly pressed against the upper blade  11  and caught by the upper blade  11  can be reduced. 
     The tip portion of the extending portion  23  is provided with a pair of left and right projecting portions  24  projecting outward from the extending portion  23  along a slider width direction, and the left and right projecting portions  24  are provided corresponding to the position of a pawl body holding portion  35 , which will be described later, of the cover body  30 . 
     The insertion piece  25  of the stopping pawl body  20  extends downward from the front end of the main body  21  so as to be located between the pair of left and right extending portions  23  and between the pair of left and right projecting portions  24 . The insertion piece  25  has a downward inclined portion obliquely inclined downward from the front end of the main body  21  toward the rear side and a perpendicular portion perpendicularly provided from the downward inclined portion through a bending portion and is configured that when the slider  1  is assembled, a tip portion of the insertion piece  25  (that is, a tip portion of the perpendicular portion) is inserted into the recess portion  11   c  of the upper blade  11 . 
     In particular, in the slider  1  of the first embodiment, in the tip portion of the insertion piece  25 , in order to prevent the stopping pawl body  20  from being caught by the recess portion  11   c  of the upper blade  11  when the stopping pawl body  20  swings, it is preferable that even if the tip portion of the insertion piece  25  is inserted into the recess portion  11   c , the tip portion of the insertion piece  25  is held in a state of floating in the recess portion  11   c  of the upper blade  11  without being in contact with an inner peripheral surface and a bottom surface of the recess portion  11   c  when the tab  6  is operated or not operated. In other words, it is preferable that the insertion piece  25  is prevented from becoming a fulcrum of the stopping pawl body  20  when the tab is operated. 
     The resilient piece  29  is formed integrally with the stopping pawl body  20 , extends to be branched upward from a portion curved from the rear end of the main body  21  to the intermediate portion, and is provided to be inclined upward from an end on a connection side connected to the main body  21  toward the tip portion. When the resilient piece  29  is thus configured integrally with the stopping pawl body  20 , the number of components of the slider can be reduced; therefore, the assembling operation of the slider is simplified, and, at the same time, the cost of the slider can be reduced. 
     In the resilient piece  29 , the tip portion of the resilient piece  29  is deflected while being in sliding contact with an inner wall upper surface of the cover body  30 , whereby the stopping pawl body  20  (in particular, the main body  21  of the stopping pawl body  20 ) is resiliently pressed to advance the pawl portion  22  into the element guide passage  16  through the pawl hole  11   b  of the slider body  10 . In this case, since the tip portion of the resilient piece  29  is made hardly catchable by the inner wall upper surface of the cover body  30  even if the stopping pawl body  20  is swung, a tip portion upper surface of the resilient piece  29  in sliding contact with the inner wall upper surface of the cover body  30  is formed into a curved surface. 
     In the above case, the stopping pawl body  20  of the first embodiment is configured that the projecting portion  24  is provided at a position more forward than the rotating support part in the extending portion  23  and is hardly directly receive a pressing force (biasing force) of the resilient piece  29 . Thus, for example, a possibility that the projecting portion  24  is caught by the flat surface  11   a  of the upper blade  11  and the pawl body holding portion  35 , which will be described later, of the cover body  30  is reduced, and even if the projecting portion  24  is caught, the caught state is hardly maintained. 
     As shown in  FIG. 8 , the stopping pawl body  20  of the first embodiment is configured that the position of the rotating support part of the extending portion  23  (contact portion in contact with the flat surface  11   a  of the upper blade  11 ) and the position of the contact portion where the tip portion of the resilient piece  29  is in contact with the inner wall upper surface of the cover body  30  are relatively deviated in the slider length direction, and a line  28  connecting them is obliquely inclined with respect to the slider height direction. 
     According to such a configuration of the stopping pawl body  20 , for example, in comparison with a case where the position of the rotating support part of the extending portion  23  and the contact portion where the tip portion of the resilient piece  29  is in contact with the cover body  30  approach the slider length direction (when the line  28  connecting them approaches more parallel to the slider height direction), when the stopping pawl body  20  is lifted so that the pawl portion  22  is retreated from the element guide passage  16 , as described later, the stopping pawl body  20  is made to be hardly held and caught between the upper blade  11  and the inner wall supper surface of the cover body  30 . 
     As shown in  FIGS. 4 and 5 , the cover body  30  of the first embodiment has a box-shaped cover main body  31  whose lower side (bottom surface side) is opened and forward attaching piece  32  and rearward attaching piece  33  provided perpendicularly from a front end and a rear end of the cover main body  31  and is configured that the stopping pawl body  20  is stored in the cover main body  31 . 
     In the left and right side wall portions of the cover main body  31 , a notched tab holding portion  34  for holding the attaching shaft portion  7  of the tab  6  and the notched pawl body holding portion  35  for holding the projecting portion  24  of the stopping pawl body  20  are formed. In this case, the tab holding portion  34  of the cover main body  31  is formed so that the dimension in the slider length direction of the tab holding portion  34  gradually increases upward. 
     As shown in  FIG. 6 , the pawl body holding portion  35  of the cover main body  31  is formed so that the dimension in the slider height direction of the pawl body holding portion  35  gradually increases forward, and the projecting portion  24  of the stopping pawl body  20  is stored and held in the pawl body holding portion  35  or, in other words, loosely fitted into the pawl body holding portion  35 . 
     The forward attaching piece  32  of the cover body  30  has a shape corresponding to the engagement recess portion  15  provided in the slider body  10 , and constriction portions  32   a  partially reducing the width dimension of the forward attaching piece  32  are provided at the left and right side edge portions of the forward attaching piece  32 . A recess groove portion  33   a  formed along the slider width direction is provided at a front surface of the rearward attaching piece  33  of the cover body  30 . According to this constitution, when the rearward attaching piece  33  is caulked to the slider body  10  to attach the cover body  30  to the slider body  10 , the rearward attaching piece  33  can be stably and easily bent at a predetermined position. 
     Next, a procedure of assembling the slider  1  of the first embodiment will be described. 
     Before the assembly process, a pair of the slider bodies  10  formed into a predetermined shape by press-working a metal plate, the tab  6 , the stopping pawl body  20 , and the cover body  30  are provided. 
     First, the attaching shaft portion  7  of the tab  6  is placed on the upper blade  11  of the slider body  10 . At this time, the attaching shaft portion  7  of the tab  6  is placed on an upper surface (flat surface  11   a ) of the upper blade  11  between the recess portion  11   c  and the pawl hole  11   b  of the upper blade  11  along the slider width direction. 
     Subsequently, as shown in  FIG. 7 , the stopping pawl body  20  is placed on the upper blade  11  on which the attaching shaft portion  7  of the tab  6  is placed. In  FIG. 7 , the attaching shaft portion  7  of the tab  6  is shown by a virtual line to show a positional relationship between the slider body  10  and the stopping pawl body  20  in an easy-to-understand manner. 
     At that time, the stopping pawl body  20  is placed on the upper blade  11  so that the main body  21  of the stopping pawl body  20  straddles the attaching shaft portion  7  of the tab  6 , and, at the same time, the extending portion  23  of the stopping pawl body  20  is brought into contact with the flat surface  11   a  of the upper blade  11 . The pawl portion  22  of the stopping pawl body  20  is inserted into the pawl hole  11   b , and, at the same time, the insertion piece  25  of the stopping pawl body  20  is inserted into the recess portion  11   c  of the upper blade  11 , whereby a relative position of the stopping pawl body  20  with respect to the slider body  10  is temporarily determined. 
     After the attaching shaft portion  7  of the tab  6  and the stopping pawl body  20  are placed on the slider body  10 , the slider body  10  is covered with the cover body  30 . At this time, the main body  21  of the stopping pawl body  20  is stored in the cover main body  31  of the cover body  30 , and, at the same time, the attaching shaft portion  7  of the tab  6  is held in the tab holding portion  34  of the cover body  30 . Further, the projecting portion (engaged portion)  24  of the stopping pawl body  20  is held in the pawl body holding portion  35  of the cover body  30 . 
     In the case of the first embodiment, as described above, the insertion piece  25  of the stopping pawl body  20  is inserted into the recess portion  11   c  of the upper blade  11 , whereby the stopping pawl body  20  is positioned; therefore, when the cover body  30  is laid over the slider body  10  while being aligned with respect to the slide body  10 , the main body  21  of the stopping pawl body  20  is stored in the cover main body  31 , and, at the same time, the projecting portion  24  of the stopping pawl body  20  is stably held in the pawl body holding portion  35  of the cover body  30 . Accordingly, in the slider  1  of the first embodiment, when the slider body  10  is covered with the cover body  30 , the position of the stopping pawl body  20  is not required to be regulated each time, and the slider  1  can be assembled simply and smoothly. 
     After the slider body  10  is covered with the cover body  30 , a caulking process in which a tip portion of the rearward attaching piece  33  in the cover body  30  is pressed to be bent forward, and, thus, to be plastically deformed is performed. At this time, as described above, since a recess groove portion  33   a  is formed on the front surface of the rearward attaching piece  33 , the rearward attaching piece  33  can be easily bent at a predetermined position. 
     The rearward attaching piece  33  is thus plastically deformed, and, at the same time, a portion of the front end side of the slider body  10  is bent by being pressed toward the forward attaching piece  32  of the cover body  30 , whereby the caulking process of fixing the forward attaching piece  32  of the cover body  30  to the slider body  10  is performed. Consequently, the slider  1  of the first embodiment shown in  FIGS. 6 and 8  are assembled. 
     In the slider of the invention, means for fixing the cover body to the slider body is not limited to the above structure in which the caulking process is performed, and, for example, a structure in which flexibility is given to the cover body, and the cover body is fixed to the slider body in the form of a snap can be employed. 
     In the slider  1  of the first embodiment assembled as described above, since the projecting portion  24  of the stopping pawl body  20  is held in the pawl body holding portion  35  of the cover body  30  by the flat surface  11   a  of the upper blade  11  having a stable shape and the cover body  30 , the stopping pawl body  20  is stably assembled on the slider body  10  at a predetermined position, particularly a predetermined position in the slider length direction. The position in the slider width direction of the stopping pawl body  20  is controlled by the fact that the main body  21  of the stopping pawl body  20  is provided between the left and right inner wall surfaces of the cover main body  31  of the cover body  30  and the fact that the pawl portion  22  of the stopping pawl body  20  is inserted into the pawl hole  11   b  of the upper blade  11 . 
     As shown in  FIG. 8 , when the slider  1  of the first embodiment is in a state where the tab  6  is not operated, and the stopping pawl body  20  is not lifted by the attaching shaft portion  7  of the tab  6 , the stopping pawl body  20  is biased by the resilient piece  29 , and the pawl portion  22  is made to advance into the element guide passage  16  through the pawl hole  11   b  of the slider body  10 . According to this constitution, when the slider  1  is used in the slide fastener, the stopping mechanism holding the slider  1  at a position where the slider  1  is stopped with respect to the element row  5  of the slide fastener can be operated. 
     Meanwhile, as shown in  FIG. 9 , when the slider  1  is slid by operating the tab  6 , the stopping pawl body  20  is lifted upward against the biasing force of the resilient piece  29  by the attaching shaft portion  7  of the tab  6 ; therefore, the entire stopping pawl body  20  rotates with the contact surface of the extending portion  23 , which is in contact with the flat surface  11   a  of the upper blade  11 , as a fulcrum to retreat the pawl portion  22  from the element guide passage  16 . According to this constitution, the stopping mechanism of the slider  1  is released, and the slider  1  can be freely slid along the element row  5  of the slide fastener. 
     At that time, in the slider  1  of the first embodiment, as described above, since the stopping pawl body  20  is configured that the line  28  connecting the rotating support part of the extending portion  23  and the contact portion where the tip portion of the resilient piece  29  is in contact with the inner wall upper surface of the cover body  30  is obliquely inclined with respect to the slider height direction, even if the stopping pawl body  20  is lifted, the possibility that the stopping pawl body  20  is held and caught between the upper blade  11  and the inner wall upper surface of the cover body  30  can be reduced. 
     As shown in  FIGS. 8 and 9 , the position as the rotating support part of the extending portion  23  moves from rearward to forward before and after the operation of the tab. Since there is provided the configuration in which the rotating support part can be moved in accordance with the movement of the stopping pawl, the inclination angle of the line  28  connecting the rotating support part of the extending portion  23  and the contact portion where the tip portion of the resilient piece  29  is in contact with the inner wall upper surface of the cover body  30  is not much changed before and after the operation, so that even if the stopping pawl body  20  is lifted, the possibility that the stopping pawl body  20  is held and caught between the upper blade  11  and the inner wall upper surface of the cover body  30  can be reduced. 
     After that, when the sliding operation of the slider  1  is terminated, the force with which the attaching shaft portion  7  of the tab  6  lifts the stopping pawl body  20  does not act; therefore, as shown in  FIG. 8 , the stopping pawl body  20  is biased by the resilient piece  29 , and the entire stopping pawl body  20  rotates with the contact surface of the extending portion  23 , which is in contact with the flat surface  11   a  of the upper blade  11 , as a fulcrum to advance the pawl portion  22  into the element guide passage  16 . Consequently, the stopping mechanism can be operated again. 
     In the first embodiment, even if the projecting portion  24  of the stopping pawl body  20  is caught by the upper blade  11  or the pawl body holding portion  35  of the cover body  30  when the stopping pawl body  20  is lifted, since the projecting portion  24  and the rotating support part of the extending portion  23  are provided separately, the stopping pawl body  20  can be rotated by being biased by the resilient piece  29  so that the pawl portion  22  advances into the element guide passage  16 . 
     Namely, in the slider  1  of the first embodiment, the stopping pawl body  20  can be smoothly swung in the direction in which the pawl portion  22  retreats from the element guide passage  16  and in the direction in which the pawl portion  22  advances into the element guide passage  16  with the contact surface in contact with the flat surface  11   a  of the upper blade  11  as a fulcrum. The stopping pawl body  20  is thus swung with the contact surface between the flat surface  11   a  of the upper blade  11  hardly affected by the working accuracy according to press molding and the stopping pawl body  20  as a fulcrum, whereby the stopping pawl body  20  can be smoothly swung without being caught by the upper blade  11 ; therefore, a defect and failure of the stopping mechanism hardly occur, so that the stopping mechanism can be stably operated for a long period of time. 
     In the invention, a slider is not limited to the form of the slider  1  described in the first embodiment and can be arbitrarily designed and changed according to need. For example, in order to enhance an external appearance quality (visual quality) of a slider, when the stopping pawl body is desired to be hidden so as to be hardly seen from outside as much as possible, a slider according to a modification can be configured by using, for example, a cover body  40  shown in  FIG. 10  and a stopping pawl body (not shown) in which a dimension in a slider width direction of a projecting portion (projection amount in the slider width direction) is reduced. 
     Here, in the cover body  40  shown in  FIG. 10 , although a tab holding portion  44  holding the attaching shaft portion  7  of the tab  6  and a pawl body holding portion  45  holding the projecting portion of the stopping pawl body are provided in left and right side wall portions of a box-shaped cover main body  41 , the pawl body holding portion  45  does not have the form of a notched hole portion penetrating through each of the left and right side wall portions of the cover main body  41  in an element width direction and is constituted of a void (recess portion) recessed on the inner wall surface side of each of the left and right side wall portions. 
     In the slider of the modification having the cover body  40  having the pawl body holding portion  45  and the stopping pawl body in which the projection amount in the horizontal direction of the projecting portion is smaller than that in the first embodiment, since the projecting portion of the stopping pawl body is held in the pawl body holding portion  45  of the cover body  40 , the stopping pawl body is stably held at a predetermined position with respect to a slider body. 
     In the slider of the modification, as in the slider  1  of the first embodiment, since a contact surface between a flat surface of an upper blade and an extending portion of the stopping pawl body can be used as a fulcrum supporting the swing of the stopping pawl body, a defect and failure of the stopping mechanism hardly occur. Since the projecting portion of the stopping pawl body held in the pawl body holding portion  45  of the cover body  40  is not seen from outside by being hidden by the left and right side wall portions of the cover body  40 , the external appearance quality of the slider is enhanced. 
     Second Embodiment 
       FIG. 11  is a perspective view showing a stopping pawl body provided in a slider according to a second embodiment, and  FIG. 12  is a cross-sectional view showing a relevant portion of the slider according to the second embodiment. 
     In the second embodiment and third and fourth embodiments to be described later, a configuration different from that of the slider according to a first embodiment will be mainly described, components and members having the substantially same configuration as the slider according to the first embodiment are denoted by the same reference numeral, and thus description will be omitted. 
     A slider  2  according to the second embodiment has a slider body  10   a , a tab  6  having an attaching shaft portion  7  at one end, a stopping pawl body  50  provided integrally with a resilient piece  59 , and a cover body  30  mounted on the slider body  10   a.    
     The tab  6  and the cover body  30  in the second embodiment are configured substantially similarly to those of the slider  1  according to the first embodiment, and the slider body  10   a  in the second embodiment is configured similarly to the slider body  10  in the first embodiment except that the upper blade  11  does not have a recess portion. 
     The stopping pawl body  50  of the second embodiment has a main body  51  having a shape opening downward, a pawl portion  52  provided perpendicularly from a rear end of the main body  51 , a pair of left and right extending portions  53  extending from a front end of the main body  51  and curved forward, a pair of projecting portions  54  projecting from a tip portion of each of the extending portions  53  toward outside in the horizontal direction, and a resilient piece  59  extending on the upper surface side of the main body  51 . The stopping pawl body  50  is configured similarly to the stopping pawl body  20  of the first embodiment except that the insertion piece  25  provided in the stopping pawl body  20  of the first embodiment is omitted. 
     When the slider  2  of the second embodiment is assembled, the attaching shaft portion  7  of the tab  6  is placed on the upper blade  11  of the slider body  10   a , and the stopping pawl body  50  is further placed on the upper blade  11 . At this time, the upper blade  11  of the second embodiment does not have the recess portion  11   c  as in the first embodiment, and the insertion piece  25  is not provided in the stopping pawl body  50 ; however, the pawl portion  52  of the stopping pawl body  50  is inserted into a pawl hole  11   b  of the upper blade  11 , whereby a relative approximate position of the stopping pawl body  50  with respect to the slider body  10   a  is temporarily determined. After that, the slider body  10   a  is covered with the cover body  30 , and caulking is performed, whereby the slider  2  is assembled. 
     In the slider  2  of the second embodiment, the upper blade  11  of the slider body  10   a  does not have the recess portion  11   c  as in the first embodiment, and the insertion piece  25  as in the first embodiment is not provided in the stopping pawl body  50 ; therefore, the structures of the slider body  10   a  and the stopping pawl body  50  can be simplified in comparison with the slider  1  of the first embodiment. Even when the recess portion  11   c  and the insertion piece  25  of the first embodiment are not provided in the slider  2  of the second embodiment, the projecting portion  54  of the stopping pawl body  50  is stored and held in the pawl body holding portion  35  of the cover body  30  by the flat surface  11   a  of the upper blade  11  and the cover body  30 ; therefore, the stopping pawl body  50  is stably assembled on the slider body  10   a  at a predetermined position. 
     Furthermore, in the slider  2  of the second embodiment, as in the slider  1  of the first embodiment, since the stopping pawl body  50  swings with a contact surface between a flat surface of the upper blade  11 , hardly affected by the working accuracy according to press molding, and the extending portion  53  of the stopping pawl body  50  as a fulcrum, a defect and failure of the stopping mechanism hardly occur, so that the stopping mechanism can be stably operated for a long period of time. 
     Third Embodiment 
       FIG. 13  is a perspective view showing a stopping pawl body of a slider according to a third embodiment, and  FIG. 14  is a perspective view showing a cover body of the slider. 
     The slider according to the third embodiment has a slider body  10 , a tab  6  having an attaching shaft portion  7  at one end, a stopping pawl body  60  provided integrally with a resilient piece  69 , and a cover body  70  mounted on the slider body  10 . The slider body  10  and the tab  6  used in the slider of the third embodiment are configured similarly to those of the slider  1  according to a first embodiment. 
     The stopping pawl body  60  of the third embodiment has a main body  61  having a shape opening downward, a pawl portion  62  provided perpendicularly from a rear end of the main body  61 , a pair of left and right extending portions  63  extending from a front end of the main body  61  and curved forward, left and right projecting portions  64  projecting forward from a tip portion of each of the extending portions  63 , an insertion piece  65  provided perpendicularly from the front end of the main body  61 , and a resilient piece  69  extending on the upper surface side of the main body  61 . The stopping pawl body  60  is configured similarly to the stopping pawl body  20  of the first embodiment except that the projecting direction of the projecting portion  64  is directed forward. 
     A cover body  70  of the third embodiment has a box-shaped cover main body  71  whose lower side is opened and forward attaching piece  72  and rearward attaching piece  73  provided perpendicularly from a front end and a rear end of the cover main body  71 . In left and right side wall portions of the cover main body  71 , a notched tab holding portion  74  for holding the attaching shaft portion  7  of the tab  6  is formed, and in a front side wall portion of the cover main body  71 , a notched pawl body holding portion  75  for holding the projecting portion  64  of the stopping pawl body  60  is formed. 
     In this case, the pawl body holding portion  75  is formed so that the projecting portion  64  of the stopping pawl body  60  is loosely fitted into the pawl body holding portion  75  (in other words, so that the projecting portion  64  is stored and held with a spatial allowance). In the forward attaching piece  72 , constriction portions  72   a  partially reducing the width dimension of the forward attaching piece  72  are provided at the left and right side edge portions. In the rearward attaching piece  73 , a recess groove portion  73   a  formed along the slider width direction is provided at the front surface. 
     When the slider of the third embodiment having the above configuration is assembled, the attaching shaft portion  7  of the tab  6  is placed on the upper blade  11  of the slider body  10 , and the stopping pawl body  60  is further placed on the upper blade  11 . At this time, the extending portion  63  of the stopping pawl body  60  is brought into contact with a flat surface  11   a  of the upper blade  11 . The pawl portion  62  of the stopping pawl body  60  is inserted into the pawl hole  11   b  of the upper blade  11 , and, at the same time, the insertion piece  65  of the stopping pawl body  60  is inserted into the recess portion  11   c  of the upper blade  11 , whereby the position of the stopping pawl body  60  is temporarily determined. After that, the slider body  10  is covered with the cover body  70 , and caulking is performed, whereby the slider is assembled. 
     In the slider of the third embodiment thus assembled, since the projecting portion  64  of the stopping pawl body  60  is held by the pawl body holding portion  75  of the cover body  70 , the stopping pawl body  60  is stably assembled on the slider body  10  at a predetermined position in the slider width direction. The position in the slider length direction of the stopping pawl body  60  is controlled by the fact that the pawl portion  62  of the stopping pawl body  60  is inserted in the pawl hole  11   b  of the upper blade  11  and the fact that the insertion piece  65  of the stopping pawl body  60  is inserted into the recess portion  11   c  of the cover body  70 . 
     In the slider of the third embodiment, as in the sliders  1  and  2  of the first and second embodiments, since the stopping pawl body  60  swings with a contact surface between the flat surface  11   a  of the upper blade  11 , hardly affected by the working accuracy according to press molding, and the extending portion  63  of the stopping pawl body  60  as a fulcrum, a defect and failure of a stopping mechanism hardly occur, so that the stopping mechanism can be stably operated for a long period of time. 
     Fourth Embodiment 
       FIG. 15  is a cross-sectional view showing a slider according to a fourth embodiment. 
     A slider  4  according to the fourth embodiment has a slider body  10 , a tab  6  having an attaching shaft portion  7  at one end, a stopping pawl body  80  having a pawl portion  82 , a cover body  90  mounted on the slider body  10 , and a resilient piece (resilient member)  89  formed separately from the stopping pawl body  80 . The slider body  10  and the tab  6  in the fourth embodiment are configured similarly to those of the slider  1  according to the first embodiment. 
     The stopping pawl body  80  of the fourth embodiment has a main body  81  having a shape opening downward, a pawl portion  82  provided perpendicularly from a rear end of the main body  81 , a pair of left and right extending portions  83  extending from a front end of the main body  81 , projecting portions  84  projecting from a tip portion of each of the extending portions  83  toward outside in the horizontal direction, and an insertion piece  85  provided perpendicularly from the front end of the main body  81  so as to be held between the left and right extending portions  83 . The stopping pawl body  80  is configured similarly to the stopping pawl body  20  of the first embodiment except that the resilient piece  29  formed integrally with the stopping pawl body  20  of the first embodiment is omitted. 
     The cover body  90  of the fourth embodiment has a box-shaped cover main body  91  whose lower side is opened and forward attaching piece  92  and rearward attaching piece  93  provided perpendicularly from a front end and a rear end of the cover main body  91 . In left and right side wall portions of the cover main body  91 , a tab holding portion  94  holding the attaching shaft portion  7  of the tab  6  and a pawl body holding portion  95  holding a projecting portion  84  of the stopping pawl body  80  are formed. Further, a resilient piece holding grooves  96  for holding the resilient piece  89  are formed in a front side inner wall surface and a rear side inner wall surface of the cover main body  91 . 
     The resilient piece  89  of the fourth embodiment is assembled on the cover body  90  to resiliently press the stopping pawl body  80 . The resilient piece  89  has a resilient piece main body  89   a  assembled on the cover body  90  and a resilient pressing portion  89   b  formed to be branched from a ceiling portion of the resilient piece main body  89   a , and the resilient pressing portion  89   b  biases the stopping pawl body  80  so that the pawl portion  82  of the stopping pawl body  80  advances into an element guide passage  16  through a pawl hole  11   b  of the slider body  10 . 
     When the slider  4  of the fourth embodiment having the above configuration is assembled, the resilient piece  89  is first held by being attached into the cover main body  91  of the cover body  90 . 
     Specifically, the resilient piece  89  is inserted into the cover main body  91  of the cover body  90  while stress is applied to the resilient piece  89  to deflect the resilient piece main body  89   a , and the resilient piece  89  is compressed so that the resilient piece main body  89   a  of the resilient piece  89  is in contact with a ceiling surface (inner wall upper surface) of the cover main body  91 . According to this constitution, when a front end edge and a rear end edge of the resilient piece main body  89   a  reach the positions of the resilient piece holding grooves  96  of the cover main body  91 , the resilient piece main body  89   a  resiliently returns to fit the front end edge and the rear end edge of the resilient piece main body  89   a  to the resilient piece holding grooves  96  of the cover main body  91 ; therefore, the resilient member is held in the cover main body  91 . 
     While the resilient piece  89  is attached to the cover body  90 , the attaching shaft portion  7  of the tab  6  and the stopping pawl body  80  are placed on an upper blade  11  of the slider body  10  in a procedure similar to that described in the first embodiment. After that, the slider body  10  on which the attaching shaft portion  7  of the tab  6  and the stopping pawl body  80  are placed is covered with the cover body  90  holding the resilient piece  89 , and caulking is performed. According to this constitution, the slider  4  of the fourth embodiment is assembled. 
     In the slider  4  of the fourth embodiment thus assembled, since the projecting portion  84  of the stopping pawl body  80  is held in the pawl body holding portion  95  of the cover body  90  by a flat surface  11   a  of the upper blade  11  and the cover body  90 , the stopping pawl body  80  is stably assembled on the slider body  10  at a predetermined position. 
     When the slider  4  of the fourth embodiment is in a state where the tab  6  is not operated, and the stopping pawl body  80  is not lifted by the attaching shaft portion  7  of the tab  6 , the stopping pawl body  80  is biased by the resilient piece  89 , and the pawl portion  82  is made to advance in an element guide passage  16  through the pawl hole  11   b  of the slider body  10 , as shown in  FIG. 15 . According to this constitution, when the slider  4  is used in a slide fastener, a stopping mechanism can be operated. 
     Meanwhile, when the slider  4  is slid by operating the tab  6 , the stopping pawl body  80  is lifted upward against the biasing force of the resilient piece  89  by the attaching shaft portion  7  of the tab  6 ; therefore, the stopping pawl body  80  entirely rotates with a contact surface of the extending portion  83 , which is in contact with the flat surface  11   a  of the upper blade  11 , as a fulcrum to retreat the pawl portion  82  from the element guide passage  16 . According to this constitution, the stopping mechanism of the slider  4  is released, and the slider  4  can be freely slid along an element row of the slide fastener. 
     After that, when the sliding operation of the slider  4  is terminated, the stopping pawl body  80  is biased by the resilient piece  89 , and the stopping pawl body  80  entirely rotates with the contact surface of the extending portion  83 , which is in contact with the flat surface  11   a  of the upper blade  11 , as a fulcrum to advance the pawl portion  82  into the element guide passage  16 . Consequently, the stopping mechanism can be operated again. 
     Namely, even in the slider  4  of the fourth embodiment in which the stopping pawl body  80  and the resilient piece  89  are formed separately, since the stopping pawl body  80  can be swung in the direction in which the pawl portion  82  retreats from the element guide passage  16  and in the direction in which the pawl portion  82  advances into the element guide passage  16  with the contact surface in contact with the flat surface  11   a  of the upper blade  11  as a fulcrum, a defect and failure of the stopping mechanism hardly occur, so that the stopping mechanism can be stably operated for a long period of time. 
     DESCRIPTION OF REFERENCE NUMERALS 
     
         
           1 ,  2 ,  4  slider 
           5  element row 
           6  tab 
           7  attaching shaft portion 
           10 ,  10   a  slider body 
           11  upper blade 
           11   a  flat surface 
           11   b  pawl hole 
           11   c  recess portion 
           11   d  rearward engaging portion 
           12  lower blade 
           13  diamond 
           14  flange portion 
           15  engagement recess portion 
           16  element guide passage 
           20  stopping pawl body 
           21  main body 
           22  pawl portion 
           23  extending portion 
           23   a  curved portion 
           24  projecting portion 
           25  insertion piece 
           28  line 
           29  resilient piece 
           30  cover body 
           31  cover main body 
           32  forward attaching piece 
           32   a  constriction portion 
           33  rearward attaching piece 
           33   a  recess groove portion 
           34  tab holding portion 
           35  pawl body holding portion 
           40  cover body 
           41  cover main body 
           44  tab holding portion 
           45  pawl body holding portion 
           50  stopping pawl body 
           51  main body 
           52  pawl portion 
           53  extending portion 
           54  projecting portion 
           59  resilient piece 
           60  stopping pawl body 
           61  main body 
           62  pawl portion 
           63  extending portion 
           64  projecting portion 
           65  insertion piece 
           69  resilient piece 
           70  cover body 
           71  cover main body 
           72  forward attaching piece 
           72   a  constriction portion 
           73  rearward attaching piece 
           73   a  recess groove portion 
           74  tab holding portion 
           75  pawl body holding portion 
           80  stopping pawl body 
           81  main body 
           82  pawl portion 
           83  extending portion 
           84  projecting portion 
           85  insertion piece 
           89  resilient piece (resilient member) 
           89   a  resilient piece main body 
           89   b  resilient pressing portion 
           90  cover body 
           91  cover main body 
           92  forward attaching piece 
           93  rearward attaching piece 
           94  tab holding portion 
           95  pawl body holding portion 
           96  resilient piece holding groove