Slider

Abstract

A slider according to the present invention is characterized by comprising a slider body (10), a pull-tab (30), and a cover body (40), wherein: an upper blade (20) of the slider body (10) has a reference surface (21), a clearance recess (22) that is recessed with respect to the reference surface (21), and a protrusion (24) that protrudes from the reference surface (21); the reference surface (21) and the clearance recess (22) are provided to left and right side regions (52); the clearance recess (22) is disposed to include at least part of an intermediate region (55) provided between a first attachment column (14) and a second attachment column (15) in the length direction; and the protrusion (24) is disposed further rearward than the intermediate region (55). Thus, even if a coating process is performed on the slider, it is possible to make it unlikely that the pull-tab (30) will stick due to a coating material.

Description

Technical Field

[0001] The present invention relates to a slider used for a slide fastener.

Background Art

[0002] International Publication No. 2021 / 250748 (Patent Document 1) etc. disclose a slider for a slide fastener. For example, as shown in FIG. 8, a conventional slider 70 is formed using a slider body 71, a pull tab 72, a stop claw body 73, a leaf spring member (elastic member) 74, and a cover body 75. This slider 70 is assembled by sequentially placing the pull tab 72, the stop claw body 73, and the leaf spring member 74 on the slider body 71, and then attaching the cover body 75 to the front and rear mounting posts 71a provided on the slider body 71.

[0003] This slider 70 is provided with an automatic stop mechanism by the stop claw body 73. Specifically, when the pull tab 72 of the slider 70 is not being operated, the stop claw body 73 is urged by the leaf spring member 74, so that the claw portion 73a of the stop claw body 73 automatically protrudes into the element guide path 71b of the slider body 71. As a result, the claw portion 73a of the stop claw body 73 that has protruded into the element guide path 71b engages with an element row inserted into the element guide path 71b. As a result, it becomes possible to maintain the stopped state of the slider 70 so that the slider 70 does not move freely along the element row.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] After the conventional slider 70 as described above is assembled, surface treatment such as painting is often performed on the assembled slider 70. Further, as a method of painting the slider, for example, spraying paint on the assembled slider is known.

[0006] However, when the slider is dried after being subjected to painting processing such as spraying on the conventional slider, in some sliders, there has been a problem that the handle becomes fixed to the slider body and does not move because the paint dries while the handle remains in contact with the upper wing plate of the slider body. Further, there has been a problem that a mark of the handle remains on the slider body due to the handle fixed to the slider body by the paint being peeled off. The slider in which such a problem has occurred is removed as a defective product, which is one of the causes of the decrease in productivity and the decrease in yield.

[0007] The present invention has been made in view of the above-described conventional problems, and an object thereof is to provide a slider that can make it difficult for a handle to adhere to a slider body due to paint even when painting processing is performed.

Means for Solving the Problems

[0008] In order to achieve the above object, the slider provided by the present invention has at least a slider body, a handle having a mounting shaft portion, and a cover body. The slider body has an upper wing plate, a lower wing plate disposed spaced apart from the upper wing plate, a connecting column connecting the front end portion of the upper wing plate and the front end portion of the lower wing plate, and a first mounting column on the front side and a second mounting column on the rear side rising from the upper wing plate. The cover body is attached to the first mounting column and the second mounting column of the slider body. The mounting shaft portion of the handle is disposed between the first mounting column and the second mounting column of the slider body and is held between the upper wing plate and the cover body. The slider is for a slide fastener, and the upper wing plate has a reference surface exposed upward, a relief recess having a shape recessed with respect to the reference surface, and a protrusion protruding from the reference surface and supporting a part of the handle when the handle falls. The reference surface and the relief recess are disposed in the left and right side regions outside the first mounting column and the second mounting column in the slider width direction. The relief recess is disposed including at least a part of an intermediate region provided between the first mounting column and the second mounting column in the slider length direction. The protrusion is disposed behind the intermediate region in the slider length direction.

[0009] In the slider of the present invention, the upper wing plate preferably has a shaft support portion for supporting the mounting shaft portion of the handle, and the shaft support portion is disposed in at least a part of the intermediate region in the slider length direction.

[0010] In the slider of the present invention, in the slider length direction, it is preferable that the front end of the relief recess is disposed in front of the intermediate region, and the rear end of the relief recess is disposed between the intermediate region and the protrusion.

[0011] Further, the relief recess preferably has a bottom surface that is curved in a concave shape with respect to the slider length direction, and the bottom surface of the relief recess is smoothly and continuously formed from the reference surface.

[0012] Furthermore, it is preferable that the bottom surface of the relief recess is formed by a curved surface parallel to the slider width direction.

[0013] In the slider of the present invention, The upper wing plate has a shaft support portion that supports the mounting shaft portion of the handle. It is preferable that the shaft support portion is arranged inside the left and right relief recesses in the slider width direction and is arranged at the same height position as the reference plane in the slider height direction.

[0014] In the side view of the slider when viewed from the slider width direction, when the handle falls, it is preferable that a non-contact region where the handle does not contact the upper wing plate is provided between the upper wing plate and the handle.

[0015] Also, in the side view of the slider when viewed from the slider width direction, when the handle falls, if the dimension in the slider length direction from the center position of the mounting shaft portion of the handle to the tip position of the protrusion is defined as the reference dimension, the dimension in the slider length direction from the front end to the rear end of the relief recess is preferably 50% or more of the reference dimension.

[0016] Furthermore, from the reference plane in the relief recess ス The maximum depth in the slider height direction is preferably 2% or more and 10% or less of the dimension in the slider height direction from the reference plane to the lower surface of the upper wing plate in the upper wing plate.

Advantages of the Invention

[0017] According to the slider according to the present invention, even when painting is performed, it is possible to make it difficult for the handle to adhere to the slider body due to the paint, thereby improving productivity and also increasing the yield.

Brief Description of the Drawings

[0018]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

DETAILED DESCRIPTION OF THE INVENTION

[0019] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view schematically showing a slider body and a pull tab in the slider of the present embodiment. FIGS. 2 and 3 are a plan view and a side view of the slider body and the pull tab, respectively. In FIG. 3, the cover body is shown by a broken line. FIG. 4 is a schematic view showing the relationship between the upper wing plate of the slider body and the pull tab.

[0020] In the following description, the front-rear direction refers to the length direction or the sliding direction of the slider. In particular, when the slider is used for a slide fastener, the direction in which the slider moves so as to engage the left and right element rows is defined as the front (shoulder side direction), and the direction in which the slider moves so as to separate the element rows (rear side direction) is defined as the rear.

[0021] The vertical direction refers to the height direction of the slider, for example, the direction perpendicular to the reference plane (to be described later) of the upper wing plate in the slider body. In particular, the side where the pull tab is attached to the slider body of the slider is defined as the upper side, and the opposite direction is defined as the lower side. The left - right direction refers to the width direction of the slider, which is the direction perpendicular to the length direction and the height direction of the slider.

[0022] The slider of the present embodiment is slidably attached to the left - and - right element rows of the slide fastener and used. In this case, the left - and - right element rows provided on the slide fastener are formed by a plurality of continuous coiled fastener elements. The slider is attached to the element row by inserting the coiled element row into the element guide path 18 (to be described later) of the slider. Further, by sliding the slider along the element row, the left - and - right element rows can be engaged and separated.

[0023] In addition, the slider of the present embodiment is provided with an automatic stop mechanism by a stop claw body (not shown) that can automatically hold the stopped state of the slider when the slider is stopped with respect to the element row. Note that the slider of the present invention may be formed without an automatic stop mechanism.

[0024] The slider of the present embodiment is formed by five components: a slider body 10, a pull tab 30, a stop claw body (not shown), an elastic member (not shown), and a cover body 40. In the case of the present embodiment, the elastic member is formed by a leaf spring member.

[0025] The slider of the present embodiment has main features in the slider body 10 (particularly, the upper wing plate 20 of the slider body 10). In the present invention, the shapes, structures, materials, etc. of the stop claw body, the elastic member (leaf spring member), and the cover body 40 are not particularly limited. Therefore, hereinafter, the slider body 10 and the pull tab 30 will be mainly described. In addition, since the stop claw body, the elastic member, and the cover body 40 are formed substantially in the same manner as those generally used conventionally, detailed descriptions thereof are omitted.

[0026] In this embodiment, the pull tab 30 has a pull tab main body 31 that is pinched by a finger or the like, left and right arm portions 32 that extend from one end portion of the pull tab main body 31, and a mounting shaft portion 33 that connects the tip ends of the left and right arm portions 32. The cross section orthogonal to the axial direction (slider width direction) of the mounting shaft portion 33 is circular. The pull tab 30 is formed with a rectangular opening window portion surrounded by the pull tab main body 31, the left and right arm portions 32, and the mounting shaft portion 33. In the present invention, the shape, size, material, etc. of the pull tab are not particularly limited.

[0027] The slider body 10 of this embodiment has an upper wing plate 20, a lower wing plate 11 disposed apart from the upper wing plate 20, a connecting column 12 that connects the front end portion (shoulder side end portion) of the upper wing plate 20 and the front end portion (shoulder side end portion) of the lower wing plate 11, left and right upper flange portions 13 provided on the left and right side portions of the upper wing plate 20, a front first mounting column (front mounting column) 14 provided at the front end portion of the upper wing plate 20, and a rear second mounting column (rear mounting column) 15 provided at the rear end portion of the upper wing plate 20. Left and right raised portions that bulge toward the upper wing plate 20 are provided at the left and right side edges in the rear half of the lower wing plate 11.

[0028] At the front end portion of the slider body 10, left and right shoulder openings 16 are formed with the connecting column 12 interposed therebetween. A rear opening 17 is formed at the rear end portion of the slider body 10. A substantially Y-shaped element guide path 18 that communicates the left and right shoulder openings 16 and the rear opening 17 is formed between the upper wing plate 20 and the lower wing plate 11 of the slider body 10. Tape insertion gaps 19 for inserting left and right fastener tapes (not shown) in the slide fastener are respectively provided at the left and right side edges of the slider body 10. In this case, the left and right tape insertion gaps 19 in the slider body 10 are formed between the left and right upper flange portions 13 and the raised portions 11a of the lower wing plate 11.

[0029] As shown in FIGS. 5 and 6, the upper wing plate 20 of the present embodiment has a reference surface 21 that is exposed upward, left and right relief recesses 22 having a shape recessed with respect to the reference surface 21, left and right shaft support portions 23 that support the mounting shaft portion 33 of the handle 30, four protrusion portions 24 that protrude from the reference surface 21, and left and right side edge portions 25 having smooth curved outer surfaces.

[0030] Here, regarding the upper wing plate 20 of the present embodiment, as shown in FIG. 6 for example, in the left - right direction (slider width direction), a portion where the first mounting pillar 14 and the second mounting pillar 15 are formed is defined as a central region 51, and portions arranged on both the left and right sides of the central region 51 are defined as side regions 52. Also, regarding the upper wing plate 20, in the front - rear direction (slider length direction), a portion between the first mounting pillar 14 and the second mounting pillar 15 is defined as an intermediate region 55, and portions formed in front of and behind the intermediate region 55 are defined as a front region 56 and a rear region 57, respectively. In this case, the intermediate region 55 of the upper wing plate 20 is a region in the front - rear direction from the rear edge of the first mounting pillar 14 (specifically, the rear edge of the first inclined surface 14d of the first mounting pillar 14 described later) to the front edge of the second mounting pillar 15 (specifically, the front edge of the second inclined surface 15d of the second mounting pillar 15 described later).

[0031] In the present embodiment, the reference surface 21 of the upper wing plate 20 is an upper surface orthogonal to the up - down direction in the upper wing plate 20 and is formed by a flat surface. This reference surface 21 is arranged in each of the left and right side regions 52 of the upper wing plate 20 in the left - right direction. Also, this reference surface 21 is provided in at least a part of the front region 56 and at least a part of the rear region 57 of the upper wing plate 20 in the front - rear direction.

[0032] Particularly in the case of the present embodiment, since the flat reference surface (upper surface) 21 is provided in the left and right side regions 52 at the front end portion where the width dimension (left - right dimension) of the upper wing plate 20 gradually decreases forward and in the left and right side regions 52 at the rear end portion close to the rear opening 17 side of the upper wing plate 20, for example, after manufacturing the slider of the present embodiment, the insertion process of inserting left and right element rows into the slider can be performed smoothly.

[0033] Specifically, for example, after manufacturing the slider of the present embodiment, an insertion process is performed in which the left and right element rows in the fastener chain are mechanically inserted into the element guide path 18 of the slider. In this insertion process, in order to insert the element row into the slider, first, using a slider holder, the front end and rear end of the upper wing plate 20 and the front end and rear end of the lower wing plate 11 in the slider body 10 are sandwiched and pressed from above and below to hold the slider in the slider holder. At this time, since the flat reference surface 21 of the upper wing plate 20 is provided in the left and right side regions 52 at the front end and rear end of the upper wing plate 20 as in the present embodiment, the slider can be stably held in a fixed posture by the slider holder, so that the work of inserting the left and right element rows into the element guide path 18 of the slider can be performed smoothly and stably by a machine.

[0034] The four protrusions 24 provided on the upper wing plate 20 are formed in the same shape and the same size as each other. Each protrusion 24 has a circular tip surface (upper end surface) parallel to the reference surface 21 of the upper wing plate 20 and an outer peripheral surface extending from the outer peripheral edge of the tip surface to the reference surface 21. Further, the outer peripheral surface of the protrusion 24 is formed in a substantially spherical shape. In the present invention, the shape of the protrusion 24 is not particularly limited.

[0035] The protrusions 24 of the present embodiment include a pair of left and right first protrusions 24a arranged on both the left and right sides of the first mounting post 14 and in front of the middle region 55 of the upper wing plate 20, and a pair of left and right second protrusions 24b arranged on both the left and right sides of the second mounting post 15 and behind the middle region 55 of the upper wing plate 20. In this case, the front first protrusions 24a are respectively arranged in the left and right side regions 52 in the front region 56 of the upper wing plate 20. The rear second protrusions 24b are respectively arranged in the left and right side regions 52 in the rear region 57 of the upper wing plate 20.

[0036] In this embodiment, the height dimension of the protrusion 24 from the reference plane 21 (i.e., the dimension in the vertical direction between the reference plane 21 and the tip surface of the protrusion 24) is 3% or more and 20% or less, preferably 5% or more and 15% or less of the thickness dimension of the upper wing plate 20 (i.e., the dimension in the vertical direction from the element guide surface facing the element guide path 18 of the upper wing plate 20 to the reference plane 21).

[0037] When the height dimension of the protrusion 24 is set to 3% or more of the thickness dimension of the upper wing plate 20, when the handle 30 is tilted toward the shoulder opening 16 side or the rear opening 17 side with respect to the slider body 10, the handle 30 can be brought into contact with the left and right protrusions 24 and supported by the protrusions 24. As a result, at least in the vicinity of the protrusions 24 in the front-rear direction, the handle 30 can be separated from the reference plane 21 of the upper wing plate 20.

[0038] When the height dimension of the protrusion 24 is set to 20% or less of the thickness dimension of the upper wing plate 20, the protrusion 24 can be made less conspicuous in the appearance of the slider. Also, for example, when the slider body 10 is touched with a finger, it is possible to make it difficult for the finger to catch on the protrusion 24. Specifically, for example, in the case of this embodiment, the height dimension of the protrusion 24 from the reference plane 21 is set to 0.05 mm or more and 0.30 mm or less.

[0039] Also, as shown in FIG. 6, the front first protrusion 24a is arranged at a position closer to the intermediate region 55 than the rear second protrusion 24b in the front-rear direction. Thereby, when the handle 30 is tilted toward the shoulder opening 16 side of the slider body 10, for example, compared with when the handle 30 is tilted toward the rear opening 17 side of the slider body 10, the handle 30 can be separated more greatly from the reference plane 21 of the upper wing plate 20 in the vicinity of the protrusion 24.

[0040] The escape recesses 22 are provided in the left and right side regions 52 of the upper wing plate 20 respectively in order to reduce the contact area between the handle 30 and the upper wing plate 20 when the handle 30 is tilted toward the rear opening 17 side, and are recessed downward with respect to the reference plane 21 of the upper wing plate 20. In the present embodiment, the left and right escape recesses 22 are formed symmetrically with respect to the center line in the left-right direction of the upper wing plate 20.

[0041] Each of the left and right escape recesses 22 has a bottom surface 22a that is recessed and curved downward in the front-rear direction, and this bottom surface 22a is formed as a smooth concave curved surface. That is, the escape recess 22 is formed such that the depth of the escape recess 22 is the deepest at the central portion in the length direction of the escape recess 22, and the depth of the escape recess 22 gradually becomes shallower as it moves away from the central portion of the escape recess 22 toward the front and rear. Here, the depth of the escape recess 22 refers to the dimension in the vertical direction from the bottom surface 22a of the escape recess 22 to the reference plane 21.

[0042] In the present embodiment, the maximum depth D of the escape recess 22 (that is, the depth at the central portion of the escape recess 22) is set to be 2% or more and 10% or less, preferably 3% or more and 8% or less of the thickness dimension of the upper wing plate 20 (see FIG. 4). Further, the maximum depth D of the escape recess 22 is set to be 25% or more and 50% or less of the height dimension from the reference plane 21 in the protrusion 24.

[0043] Since the maximum depth D of the escape recess 22 is 2% or more of the thickness dimension of the upper wing plate 20, as shown in FIG. 4, when the handle 30 is tilted toward the rear opening 17 side of the slider body 10, a gap (for example, a gap of 0.03 mm or more) can be easily provided between the handle 30 and the bottom surface 22a of the escape recess 22. Further, since the maximum depth D of the escape recess 22 is 10% or less of the thickness dimension of the upper wing plate 20, it is possible to suppress a decrease in the strength of the upper wing plate 20 due to the installation of the escape recess 22. For example, in the case of the present embodiment, the maximum depth D of the escape recess 22 is set to be 0.02 mm or more and 0.5 mm or less.

[0044] In the present invention, the relief recess 22 may be formed such that the bottom surface 22a of the relief recess 22 is not a curved surface as in the present embodiment, but includes, for example, a plane parallel to the front-rear direction or a plane inclined with respect to the front-rear direction. Further, for example, in FIGS. 1, 2, 5, and 6, in order to clearly illustrate the formation range of the relief recess 22, a line indicating a boundary is shown between the bottom surface 22a of the relief recess 22 and the reference surfaces 21 provided before and after the relief recess 22. However, in the actual slider body 10, as shown in FIG. 4 for example, the bottom surface 22a of the relief recess 22 is smoothly and continuously formed from the front and rear reference surfaces 21 so that the boundary portion with the reference surface 21 is not clearly visible visually.

[0045] Since such left and right relief recesses 22 are provided in the upper wing plate 20, when the handle 30 falls toward the rear opening 17 side with respect to the slider body 10 and contacts the left and right second protrusion portions 24b (see FIGS. 3 and 4), for example, compared with the case where the relief recess 22 is not provided in the upper wing plate 20, the area (contact area) where the handle 30 directly contacts the upper wing plate 20 can be reduced.

[0046] Further, each of the left and right relief recesses 22 is continuously formed from a position close to the central region 51 of the side region 52 toward the outer side in the width direction (see FIG. 6). In this case, an elongated reference surface 21 extending in the front-rear direction is formed between the relief recess 22 and the central region 51. In the present invention, each of the left and right relief recesses 22 may extend inward in the left-right direction up to the boundary position between the central region 51 and the side region 52.

[0047] The bottom surface 22a of the relief recess 22 extends parallel to the left-right direction, and thereby has a constant surface shape along the left-right direction. The bottom surfaces 22a of the left and right relief recesses 22 are smoothly formed so as to be continuous with the front and rear reference planes 21 as described above, and are formed parallel to the left-right direction. Thus, even when the recessed relief recess 22 is provided on the upper surface of the upper wing plate 20, the relief recess 22 can be made less conspicuous in the appearance of the slider. For this reason, the influence of the relief recess 22 on the appearance quality of the slider can be reduced or eliminated.

[0048] Also, each of the left and right relief recesses 22 is preferably formed so as to include at least a part of at least the intermediate region 55, and more preferably the whole of the intermediate region 55, in the front-rear direction (see FIG. 6). For example, in the case of the present embodiment, the front end (front edge) 22b of the relief recess 22 is arranged in front of the intermediate region 55 in the front-rear direction, specifically, between the intermediate region 55 and the front-side first protrusion 24a. The rear end (rear edge) 22c of the relief recess 22 is arranged behind the intermediate region 55 in the front-rear direction, specifically, between the intermediate region 55 and the rear-side second protrusion 24b. Thereby, when the handle 30 falls toward the rear opening 17 side, the area of contact between the handle 30 and the upper wing plate 20 can be stably reduced.

[0049] Furthermore, in the case of the present embodiment, the relief recess 22 is provided such that the dimension in the front-rear direction from the intermediate region 55 to the rear end 22c of the relief recess 22 is larger than the dimension in the front-rear direction from the intermediate region 55 to the front end 22b of the relief recess 22. Thereby, in the case where the front-side first protrusion 24a is arranged closer to the intermediate region 55 than the rear-side second protrusion 24b as in the present embodiment, the relief recess 22 can be made smaller in the front-rear direction while ensuring the effect of reducing the contact area of the handle 30 with respect to the upper wing plate 20 as described above.

[0050] For example, in the present embodiment, when the longitudinal dimension from the front end 22b to the rear end 22c in the relief recess 22 is defined as the length dimension L1 of the relief recess 22, the length dimension L1 of the relief recess 22 is set to be larger than the longitudinal dimension in the intermediate region 55 and smaller than the longitudinal dimension from the front first protrusion 24a to the rear second protrusion 24b.

[0051] Furthermore, for example, when the dimension in the slider length direction from the center position (axis center) of the mounting shaft portion 33 of the handle 30 to the position of the tip surface of the protrusion 24 on the rear side of the upper wing plate 20 (in other words, the contact position between the handle 30 and the protrusion 24) when the handle 30 falls toward the rear opening 17 side with respect to the slider body 10 is defined as the reference dimension L2, the length dimension L1 of the relief recess 22 is set to be 50% or more of the reference dimension L2 (see FIG. 4). By setting the length dimension L1 of the relief recess 22 to be 50% or more of the reference dimension L2 in this way, the contact area between the handle 30 that has fallen toward the rear opening 17 side and the upper wing plate 20 can be effectively reduced.

[0052] Also, the length dimension L1 of the relief recess 22 is preferably set to be 100% or less of the reference dimension L2. Thereby, it is possible to suppress a decrease in the strength of the upper wing plate 20 due to the installation of the relief recess 22, and in the appearance of the slider, the relief recess 22 can be provided on the upper wing plate 20 in a less conspicuous manner.

[0053] In the present invention, the left and right relief recesses 22 may be provided in a size including at least a part of the intermediate region 55 in the front-rear direction. For this reason, the relief recess 22 may be formed, for example, such that the front end 22b of the relief recess 22 is arranged within the intermediate region 55, or may be formed continuously in the front-rear direction from a position anterior to the first protrusion 24a to a position posterior to the second protrusion 24b.

[0054] The left and right shaft support portions 23 provided on the upper wing plate 20 are provided in an intermediate region 55 between the first mounting post 14 and the second mounting post 15 so as to support the mounting shaft portion 33 of the handle 30. The support surfaces (upper surfaces) of the left and right shaft support portions 23 are arranged at the same height position as the reference surface 21 of the upper wing plate 20 in the vertical direction. That is, the reference surface 21 of the upper wing plate 20 and the support surfaces of the shaft support portions 23 are provided so as to form one flat and identical plane (single flat surface). For this reason, the support surfaces of the left and right shaft support portions 23 are arranged above the bottom surface 22a of the relief recess 22 in the vertical direction. Thereby, when the handle 30 falls toward the rear opening 17 side, a gap can be easily formed between the handle 30 and the bottom surface 22a of the relief recess 22.

[0055] In the present embodiment, the left and right shaft support portions 23 are each formed elongated along the front-rear direction over the entire intermediate region 55, for example, in a plan view of the slider body 10 (see FIG. 6). Further, the left and right shaft support portions 23 are arranged so as to be sandwiched between the left and right relief recesses 22 in the left-right direction (that is, within a range inside the left and right relief recesses 22), and are provided so as to include the boundary between the central region 51 and the side region 52.

[0056] Since a central recess 26 that is recessed so that the central portion in the width direction is the lowest is provided between the left and right shaft support portions 23 of the present embodiment, the left and right shaft support portions 23 are arranged to be separated from each other. By forming the central recess 26 between the left and right shaft support portions 23 in this way, for example, when a rotary type handle in which the left and right arm portions and the mounting shaft portion of the handle are formed in an arc shape is held between the upper wing plate 20 and the cover body 40 in place of the handle 30 of the present embodiment, the rotary type handle can be easily rotated left and right with respect to the slider body.

[0057] In the present invention, the shaft support portion 23 of the upper wing plate 20 only needs to be provided such that at least a part of the shaft support portion 23 is arranged within the vertical intermediate region 55 in a plan view of the slider body 10. For this reason, in the present invention, for example, one shaft support portion may be provided within the central region in the left - right direction, or, for example, a pair of left - and - right shaft support portions may be respectively provided at portions closer to the outer side in the width direction within the left - and - right side regions. Also, in the present invention, the shaft support portion may be provided only at a part of the intermediate region, rather than the entire intermediate region, in the front - rear direction. Further, in the present embodiment, the support surface of the shaft support portion 23 is arranged at the same height position as the reference surface 21 of the upper wing plate 20 as described above in the vertical direction. However, in the present invention, the shaft support portion may be formed by changing the height position of the support surface within the range from the reference surface of the upper wing plate to the tip surface of the protrusion in the vertical direction.

[0058] In the slider body 10 of the present embodiment, the first mounting post 14 and the second mounting post 15 are formed so as to extend upward from the upper wing plate 20. Also, the first mounting post 14 and the second mounting post 15 are arranged spaced apart from each other in the front - rear direction. For this reason, a space portion capable of accommodating the mounting shaft portion 33 of the handle 30 is provided between the first mounting post 14 and the second mounting post 15.

[0059] By covering and fixing the cover body 40 to the first mounting post 14 and the second mounting post 15 of this slider body 10, the cover body 40 is attached to the slider body 10 (see FIG. 3). In the present embodiment, after the cover body 40 is put on the first mounting post 14 and the second mounting post 15, the cover body 40 is fixed to the first mounting post 14 and the second mounting post 15 by partially pressing a part of the cover body 40 to cause plastic deformation. In the present invention, the method and means for fixing the cover body 40 to the first mounting post 14 and the second mounting post 15 of the slider body 10 are not particularly limited.

[0060] On the front first mounting post 14, there are provided left and right first spring support portions 14a for supporting a leaf spring member (elastic member) (not shown) and a first protruding portion 14b that engages with the leaf spring member in order to attach the leaf spring member. Further, the first mounting post 14 is provided with a claw housing recess 14c for housing a part of a stop claw body (not shown) and a first inclined surface 14d that slopes downward toward the rear. The first inclined surface 14d of the first mounting post 14 is provided at the rear end portion facing the second mounting post 15 of the first mounting post 14.

[0061] On the rear second mounting post 15, there are provided a second spring support portion 15a for supporting a leaf spring member (elastic member) and a second protruding portion 15b that protrudes above the second spring support portion 15a and engages with the leaf spring member in order to attach the leaf spring member. Further, the second mounting post 15 is provided with a claw hole 15c that communicates with the element guide path 18 and a second inclined surface 15d that slopes downward toward the front. By providing the claw hole 15c, a part (claw portion) of the stop claw body urged by the leaf spring member can be advanced into the element guide path 18. The second inclined surface 15d of the second mounting post 15 is provided at the front end portion facing the first mounting post 14 of the second mounting post 15.

[0062] In the present invention, the shape, structure, size, etc. of the first mounting post 14 and the second mounting post 15 of the slider body 10 are not particularly limited as long as at least the cover body 40 can be attached.

[0063] When assembling the slider of the present embodiment using the above-described slider body 10, handle 30, stop claw body (not shown), elastic member (not shown), and cover body 40, first, the handle 30 is placed on the upper wing plate 20 of the slider body 10. At this time, as shown in FIGS. 1 and 2, the mounting shaft portion 33 of the handle 30 is inserted between the first mounting post 14 and the second mounting post 15 of the slider body 10, and the first mounting post 14 or the second mounting post 15 is inserted into the opening window portion of the handle 30. At this time, by placing the mounting shaft portion 33 of the handle 30 on the left and right shaft support portions 23 of the upper wing plate 20, the mounting shaft portion 33 is supported by the shaft support portions 23.

[0064] Next, a stop claw body and an elastic member are sequentially placed on the slider body 10 on which the handle 30 is placed. When placing the stop claw body on the slider body 10, a part of the stop claw body is inserted into a claw receiving recess 14c provided in the first mounting post 14 of the slider body 10, and the claw portion of the stop claw is inserted into a claw hole 15c provided in the second mounting post 15.

[0065] Thereafter, a cover body 40 is attached to the slider body 10 on which the handle 30, the stop claw body, and the elastic member are placed. At this time, the cover body 40 is placed over the first mounting post 14 and the second mounting post 15 of the slider body 10 such that the first mounting post 14 and the second mounting post 15 are accommodated within the cover body 40. Further, by pressing a part of the cover body 40 to cause plastic deformation, the cover body 40 is fixed to the first mounting post 14 and the second mounting post 15. Thereby, the mounting shaft portion 33 of the handle 30 is disposed between the first mounting post 14 and the second mounting post 15 of the slider body 10, and the slider of the present embodiment in which the mounting shaft portion 33 is held between the upper wing plate 20 and the cover body 40 is manufactured.

[0066] According to the slider of the present embodiment as described above, for example, when the handle 30 falls backward (toward the rear opening 17 side) with respect to the slider body 10, the mounting shaft portion 33 of the handle 30 is supported by the left and right shaft support portions 23 of the slider body 10, and the left and right arm portions 32 of the handle 30 are supported by the left and right second protrusion portions 24b of the slider body 10 (see FIG. 4). In this case, the handle 30 is supported by the slider body 10 in contact only with the left and right shaft support portions 23 and the left and right second protrusion portions 24b as the portions of the slider body 10 that support the handle 30. Further, left and right relief recesses 22 are provided in the left and right side regions 52 of the upper wing plate 20 of the slider body 10 of the present embodiment. Thereby, a gap can be provided between the bottom surface 22a of the relief recess 22 and the handle 30.

[0067] When such a gap is formed, in a side view of the slider as viewed from the left - right direction (Figure 4), a non - contact area 59 where the handle 30 does not contact the upper wing plate 20 is provided between the upper wing plate 20 and the rear - fallen handle 30. In the case of this embodiment, the non - contact area 59 is at least provided in the range in the front - rear direction from the position of the front - end edge of the second mounting post 15 to the position of the rear - end 22c of the relief recess 22. Note that the range from the position of the front - end edge of the second mounting post 15 to the position of the rear - end 22c of the relief recess 22 can also be described as the range where the relief recess 22 is provided within the rear area 57. In particular, in this embodiment, the non - contact area 59 is at least provided in the entire range in the front - rear direction from the center position of the mounting shaft portion 33 of the handle 30 to the contact position between the handle 30 and the second protrusion 24b (that is, the range of the reference dimension L2).

[0068] As a result, the area of the portion where the rear - fallen handle 30 contacts the slider body 10 can be significantly reduced compared to conventional sliders such as those in Patent Document 1, for example. In the present invention, depending on, for example, the installation position and size of the relief recess 22, and the shape and size of the handle 30, etc., when the handle 30 falls backward, the handle 30 may contact the slider body 10 at a portion other than the left - right shaft support portions 23 and the left - right second protrusions 24b.

[0069] Also, when the handle 30 is tilted toward the shoulder 16 side (front) with respect to the slider body 10, the mounting shaft portion 33 of the handle 30 is supported by the left - right shaft support portions 23 of the slider body 10, and the left - right arm portions 32 of the handle 30 are supported by the left - right first protrusions 24a of the slider body 10. At this time, the front first protrusion 24a is arranged at a position closer to the mounting shaft portion 33 of the handle 30 than the rear second protrusion 24b in a side view of the slider (see, for example, Figure 3). Thereby, when the handle 30 is tilted forward, compared to when the handle 30 is tilted backward, for example, the handle 30 can be tilted and held at a larger tilt angle with respect to the reference surface 21 of the upper wing plate 20, so that the area where the handle 30 contacts the upper wing plate 20 can be kept small.

[0070] As such, in the slider of this embodiment, by providing the left and right relief recesses 22 in the upper wing plate 20, when the handle 30 falls forward or backward, the contact area between the handle 30 and the upper wing plate 20 of the slider body 10 can be made significantly smaller than that of a conventional general slider, for example. Therefore, when the slider of this embodiment is subjected to a painting process such as painting by spraying and then the painted slider is dried, it is difficult to cause problems such as the handle 30 sticking to the upper wing plate 20 due to the drying of the paint or the trace of the handle 30 remaining on the slider body 10 due to the sticking of the handle 30. Thereby, painting defects of the slider can be reduced, so that the productivity of the slider can be improved and the yield of the slider can be increased.

[0071] Also, in the slider of this embodiment, the left and right relief recesses 22 in the upper wing plate 20 are formed parallel to each other in the left - right direction and are continuously formed up to the left and right side edges 25 of the upper wing plate 20. For this reason, when a painting process by spraying is performed on the slider, the paint flowing into the relief recesses 22 of the upper wing plate 20 can be easily discharged to the outside in the left - right direction, so that it is difficult for the paint to accumulate in the relief recesses 22 and the slider can be painted beautifully.

[0072] Furthermore, since the left and right relief recesses 22 are continuously formed up to the left and right side edges 25 of the upper wing plate 20, for example, even if a handle (for example, a handle with a long mounting shaft portion in the left - right direction) having a left - right dimension of the mounting shaft portion different from that of this embodiment is attached to the slider body 10, it is possible to prevent or suppress the handle from sticking to the upper wing plate 20 after the painting process, as in the case of this embodiment.

[0073] Also, in the slider of the present embodiment, as described above, the bottom surface 22a of the relief recess 22 is formed in a smooth concave shape and is smoothly continuous with the front and rear reference surfaces 21. Further, the relief recess 22 is formed to have a shallow depth with respect to the reference surface 21, and the dimensions in the front-rear direction are reduced within a range where the effect of reducing the contact area between the handle 30 and the upper wing plate 20 can be obtained. Moreover, in the slider of the present embodiment, as shown in FIGS. 1 and 2 for example, when the handle 30 is tilted toward the rear opening 17 side, the left and right relief recesses 22 provided in the upper wing plate 20 can be covered by the handle 30 and made difficult to see.

[0074] Thereby, even if the relief recess 22 is provided in the upper wing plate 20, as described above, the relief recess 22 can be made less conspicuous in the appearance of the slider. Also, when sliding the slider or the like, it is possible to make it difficult for a finger or a nail to get caught in the relief recess 22 of the upper wing plate 20. Therefore, the slider of the present embodiment can obtain the same texture as the conventional slider.

[0075] For this reason, even if the slider of the present embodiment is attached to the element row of a fastener chain, for example, in place of a conventional slider, it is possible to make it difficult for the user to feel a sense of discomfort. Also, with respect to fastener-attached products such as clothes and bags, the change in the influence that the slide fastener has on the appearance and designability of the fastener-attached product can be suppressed to a small level.

[0076] Note that the present invention is not limited to the above-described embodiment, and various modifications are possible as long as the configuration is substantially the same as that of the present invention and the same operational effects can be achieved. For example, the slider of the above-described embodiment is mainly used for a slide fastener formed by a plurality of fastener elements in which an element row is continuously coiled as described above. However, the slider of the present invention may be formed so as to be used for, for example, a slide fastener in which an element row is formed by a plurality of metal fastener elements, or a slide fastener in which a plurality of independent fastener elements are formed on a fastener tape by injection molding of synthetic resin.

[0077] Further, in the slider of the above-described embodiment, four protrusions 24 including two front first protrusions 24a and two rear second protrusions 24b are provided on the upper wing plate 20. However, in the present invention, at least one protrusion 24 may be arranged on the upper wing plate 20 on the rear side of the intermediate region 55. For this reason, the slider body may be formed, for example, without providing a protrusion on the front side of the intermediate region.

Explanation of Signs

[0078] 10 slider body 11 lower wing plate 11a raised portion 12 connecting column 13 upper flange portion 14 first mounting column (front mounting column) 14a first spring support portion 14b first protrusion 14c claw receiving recess 14d first inclined surface 15 second mounting column (rear mounting column) 15a second spring support portion 15b second protrusion 15c claw hole 15d second inclined surface 16 shoulder opening 17 rear opening 18 element guide path 19 tape insertion gap 20 upper wing plate 21 reference plane (upper surface) 22 relief recess 22a bottom surface 22b Front end (front edge) 22c Rear end (rear edge) 23 Shaft support part 24 Protrusion 24a First protrusion 24b Second protrusion 25 Side edge part 26 Central concave part 30 Handle 31 Handle main body part 32 Arm part 33 Mounting shaft part 40 Cover body 51 Central region 52 Side region 55 Intermediate region 56 Front region 57 Rear region 59 Non-contact region D Maximum depth of the relief recess L1 Length dimension of the relief recess L2 Reference dimension

Claims

1. It has at least a slider body (10), a handle (30) having a mounting shaft portion (33), and a cover body (40). The slider body (10) includes an upper wing plate (20), a lower wing plate (11) arranged spaced apart from the upper wing plate (20), a connecting column (12) connecting the front end of the upper wing plate (20) and the front end of the lower wing plate (11), and a front first mounting column (14) and a rear second mounting column (15) rising from the upper wing plate (20). The cover body (40) is attached to the first mounting column (14) and the second mounting column (15) of the slider body (10). The mounting shaft portion (33) of the handle (30) is arranged between the first mounting column (14) and the second mounting column (15) of the slider body (10) and is held between the upper wing plate (20) and the cover body (40). It is a slider for a slide fastener, The upper wing plate (20) has a reference surface (21) exposed upward, a relief recess (22) having a shape recessed with respect to the reference surface (21), and a protrusion (24) protruding from the reference surface (21) and supporting a part of the handle (30) when the handle (30) falls down. The reference surface (21) and the relief recess (22) are arranged in left and right side regions (52) outside the first mounting column (14) and the second mounting column (15) in the slider width direction. The relief recess (22) is arranged including at least a part of an intermediate region (55) provided between the first mounting column (14) and the second mounting column (15) in the slider length direction. The protrusion (24) is arranged behind the intermediate region (55) in the slider length direction. A slider characterized by the above.

2. The upper wing plate (20) has a shaft support portion (23) for supporting the mounting shaft portion (33) of the handle (30). The shaft support portion (23) is arranged in at least a part of the intermediate region (55) in the slider length direction. The slider according to Claim 1.

3. In the slider length direction, the front end (22b) of the relief recess (22) is arranged in front of the intermediate region (55), and the rear end (22c) of the relief recess (22) is arranged between the intermediate region (55) and the protrusion (24). The slider according to Claim 1.

4. The relief recess (22) has a bottom surface (22a) that is concave and curved with respect to the slider length direction. The bottom surface (22a) of the relief recess (22) is formed smoothly and continuously from the reference surface (21). The slider according to claim 1.

5. The bottom surface (22a) of the relief recess (22) is formed by a curved surface parallel to the slider width direction. The slider according to claim 1.

6. The upper wing plate (20) has a shaft support portion (23) that supports the mounting shaft portion (33) of the handle (30). The shaft support portion (23) is arranged inside the left and right relief recesses (22) in the slider width direction and is arranged at the same height position as the reference surface (21) in the slider height direction. The slider according to claim 1.

7. In a side view of the slider when viewed from the slider width direction, when the handle (30) is tilted, a non-contact region (59) where the handle (30) does not contact the upper wing plate (20) is provided between the upper wing plate (20) and the handle (30). The slider according to claim 1.

8. When a dimension in the slider length direction from the center position of the mounting shaft portion (33) of the handle (30) to the tip position of the protrusion portion (24) when the handle (30) is tilted is defined as a reference dimension (L2) in a side view of the slider when viewed from the slider width direction, a dimension (L1) in the slider length direction from the front end (22b) to the rear end (22c) of the relief recess (22) is 50% or more of the reference dimension (L2). The slider according to claim 1.

9. The maximum depth (D) in the slider height direction from the reference surface (21) in the relief recess (22) is 2% or more and 10% or less of the dimension in the slider height direction from the reference surface (21) to the lower surface of the upper wing plate (20) in the upper wing plate (20). The slider according to claim 1.

Images