HK1171629B - Slider for slide fastener - Google Patents

Abstract

Disclosed is a slider (1, 2, 3) wherein a catch fixing rod (20, 50, 80) is formed in a cantilevered state integrally with the upper blade (11, 41, 71) of the slider body (10, 40, 70), and a blocking member (30, 60, 90) for blocking an insertion gap (25, 55, 85) formed between the upper blade (11, 41, 71) and the free end (23, 53, 83) of the catch fixing rod (20, 50, 80) is mounted on the mounting portion of the slider body (10, 40, 70) and fixed in place immovably. The slider (1, 2, 3) is provided with a block holding structure which can prevent other member from entering the insertion gap (25, 55, 85) by holding the block state thereof at the time of fixing the blocking member (30, 60, 90). The slider (1, 2, 3) can thereby fix a catch (5) later to the catch fixing rod (20, 50, 80) arranged on the slider body (10, 40, 70) easily. Furthermore, block state of the insertion gap (25, 55, 85) is held by the block holding structure after the catch (5) is fixed and the blocking member (30, 60, 90) is fixed to the slider body (10, 40, 70). Consequently, other member such as a piece of thin cloth can be prevented reliably from entering and being caught between the upper blade (11, 41, 71) and the free end (23, 53, 83) of the catch fixing rod (20, 50, 80).

Description

Slider for slide fastener

Technical Field

The present invention relates to a slider used for a slide fastener, and more particularly to a slider for a slide fastener of a type in which a tab is attached to a slider body from behind after the slider body is manufactured.

Background

As one type of slider used in a slide fastener, a slider has been known which can be attached to a slider body from behind after the slider body is manufactured. Such a slider can be used suitably in, for example, a slide fastener attached to clothing, bags, or the like, because various types of tabs having different colors or different forms can be attached freely to the slider body according to, for example, the request or preference of the user.

Examples of a slider for a slide fastener to which such a pull tab can be attached from the rear are disclosed in, for example, japanese patent application laid-open No. 10-295415 (patent document 1), japanese utility model registration No. 3070213 (patent document 2), and japanese utility model registration No. 3078062 (patent document 3). Here, the slider described in patent document 1 will be described with reference to fig. 20.

The slider 101 described in patent document 1 includes: a zipper main body 110; a pull tab 120 installed on the zipper body 110; a stopper (locking member) 130 and an elastic member 140 which are accommodated in a hole 117 bored in the slider body 110 in the height direction; and a flat plate-shaped support plate 150 which is caulked and fixed to the slider body 110 and supports the elastic member 140.

The slider body 110 includes: upper and lower wing plates 111, 112; a guide post 113 connecting the front ends of the upper and lower blades 111, 112; and upper and lower flanges 114 disposed on left and right side edges of the upper and lower wing plates 111, 112. Further, a tab attaching lever 160 standing in a cantilever shape is integrally formed on the slider body 110 on the upper surface of the upper blade 111. In this case, one end of the tab attaching rod 160 is a fixed end fixed to the upper blade 111, and the other end is a free end 161 disposed with a gap from the upper surface of the upper blade 111. Here, the gap disposed between the upper surface of the upper blade 111 and the free end 161 of the tab attaching rod 160 becomes an insertion gap for inserting a part of the tab 120 when the tab 120 is attached to the tab attaching rod 160, as will be described later.

Left and right shoulder openings are formed at the front end of the slider body 110 so as to sandwich the guide post 113, and a rear opening is formed at the rear end of the slider body 110. A Y-shaped element guide path 115 is formed between the upper and lower wing plates 111, 112 to communicate the left and right shoulder openings with the rear opening.

In the slider body 110, a recessed portion 116 is formed on the upper surface of the upper blade 111 in a direction from the front end edge of the upper blade 111 toward the rear, and the recessed portion 116 is disposed in a wider range than the free end portion 161 on the lower side of the free end portion 161 of the tab attaching lever 160.

Further, a hole 117 penetrating in the vertical direction is formed in the range from the upper surface of the upper wing 111 to the lower surface of the lower wing 112 at the front end of the guide post 113 on which the slider body 110 is disposed, and a stepped portion into which the support plate 150 can be fitted is formed at the lower end of the hole 117. A projecting piece 118 capable of caulking and fixing the support plate 150 is provided in a vertical manner at a position in front of and behind the hole 117 in the lower blade 112.

The tab 120 in patent document 1 includes: a pull tab main body portion 121; and a mounting shaft portion 122 inserted into a receiving space formed between the upper wing plate 111 and the pull tab mounting bar 160.

An inclined surface 131 is formed at the upper end of the stopper 130 in patent document 1. The inclined surface 131 is disposed so as to be inclined downward in the forward direction when the stopper 130 is fitted into the slider body 110. A circular hole, not shown, into which the elastic member 140 can be inserted is formed in the lower end surface of the stopper 130.

When the slider 101 of patent document 1 having the above-described components is assembled, first, the stopper 130 is inserted into the hole 117 bored in the slider body 110 in a predetermined direction, and the elastic member 140 is disposed below the stopper 130. At this time, the upper end of the elastic member 140 is fitted into a circular hole, not shown, of the stopper 130.

Next, in a state where the support plate 150 is brought into contact with the lower end of the elastic member 140, the support plate 150 is fitted into the stepped portion disposed at the lower end of the hole 117, and the projecting piece 118 extending from the lower wing plate 112 is caulked toward the support plate 150, whereby the support plate 150 is fixed to the slider body 110. Thereby, the stopper 130, the elastic member 140, and the support plate 150 are attached to the slider body 110.

At this time, since the stopper 130 is urged upward by the elastic member 140, the upper end of the stopper 130 abuts on the free end portion 161 of the tab attaching rod 160, and a gap (insertion gap) between the bottom surface of the recess 116 formed in the upper blade 111 and the free end portion 161 of the tab attaching rod 160 is closed.

Next, the pull tab 120 is attached to the slider body 110 to which the stopper 130, the elastic member 140, and the support plate 150 have been attached. Specifically, the attachment shaft portion 122 of the tab 120 is inserted from the front end side of the slider body 110 between the recess 116 formed in the upper blade 111 and the free end portion 161 of the tab attachment lever 160, the attachment shaft portion 122 is brought into contact with the inclined surface 131 of the stopper 130, and the attachment shaft portion 122 is pushed toward the stopper 130.

Thus, since the stopper 130 moves downward against the biasing force of the elastic member 140, the insertion gap between the bottom surface of the concave portion 116 of the upper blade 111 and the free end portion 161 of the tab attaching rod 160 is opened, and the attaching shaft portion 122 of the tab 120 is introduced into the housing space formed between the upper blade 111 and the tab attaching rod 160 through the opened insertion gap and is housed in the housing space.

After the attachment shaft portion 122 of the tab 120 is introduced into the accommodation space, the stopper 130 is urged by the elastic member 140 to move upward, so that the upper end of the stopper 130 abuts on the free end portion 161 of the tab attachment rod 160, and the insertion gap is again closed. This makes it possible to obtain the slider 101 in which the tab 120 is attached to the tab attaching lever 160.

In the slider 101 of patent document 1, the tab 120 can be easily and smoothly attached to the slider body 110 integrally formed with the tab attaching lever 160 by the concave portion 116 formed in the upper blade 111 of the slider body 110.

Further, in the slider 101, since the distance between the upper surface of the upper blade 111 and the free end portion 161 of the tab attaching lever 160 is reduced, when the tab 120 is once attached to the tab attaching lever 160, the attachment shaft portion 122 of the tab 120 can be made difficult to intrude into the gap between the bottom surface of the recess 116 in the upper blade 111 and the free end portion 161 of the tab attaching lever 160.

Thus, when the tab 120 is pulled by, for example, an operation of the slider 101, the mounting shaft portion 122 of the tab 120 can be made to abut against the stopper 130 and the stopper 130 can be pressed. Therefore, the user can prevent the tab 120 from being unintentionally detached from the tab attaching rod 160.

On the other hand, in the sliders disclosed in patent documents 2 and 3, an insertion gap through which the attachment shaft portion of the tab can be inserted is provided between the upper surface of the upper blade and the free end portion of the tab attachment lever in the slider body, and a plate spring member is used as a locking member for locking the insertion gap.

In such a slider, after the insertion gap is closed by attaching the closing member formed of the leaf spring member to the slider body, when the tab is attached to the tab attaching lever arranged on the slider body, the closing member can be elastically deformed by pushing the closing member with the attaching shaft portion of the tab, and the insertion gap can be easily opened. Thus, the attachment shaft portion of the tab can be smoothly introduced into the tab accommodating space between the upper blade and the tab attachment rod through the open insertion gap, and therefore, the tab can be easily attached.

Patent document 1: japanese laid-open patent publication No. 10-295415

Patent document 2: japanese Utility model registration No. 3070213

Patent document 3: japanese Utility model registration No. 3078062

As described above, in the sliders described in the above-mentioned patent documents 1 to 3, the stopper portion or the locking member is attached to the slider body, and the insertion gap disposed between the upper blade of the slider body and the free end portion of the tab attaching lever is locked. Then, the insertion gap in the closed state is opened by moving the stopper against the biasing force of the elastic member or elastically deforming the closing member itself, and the attachment shaft portion of the tab is introduced into the tab accommodating space through the insertion gap of the opening. Thus, the tab can be attached to the tab attaching lever arranged on the slider body from behind.

However, in the case of the conventional slider which can be attached from the rear in such a manner as to be able to pull the tab, when a slide fastener having the slider is attached to a product such as clothing or luggage and used, the following problems occur: other members, such as thin cloth pieces, which are accidentally present at the peripheral portion of the slider, enter the insertion gap of the slider and are sandwiched in the insertion gap.

Specifically, for example, when a slide fastener is used for clothing, when the clothing is worn and the wearer moves, other members such as a thin cloth piece may be inserted from the outside of the slider toward the insertion gap with some momentum. Alternatively, even when a slide fastener is used for a bag, for example, when the bag is moved or when the slider of the slide fastener is slid to open and close the opening of the bag, other members such as a thin cloth piece may be inserted into the insertion gap of the slider with a certain momentum.

In this case, the insertion gap of the slider is held in a closed state by the stopper or the closing member, but the other member inserted into the insertion gap enters the insertion gap while directly pressing the stopper or the closing member of the slider to open the insertion gap. Moreover, there are the following cases: the other member is sandwiched (caught) between the stopper or the locking member and the free end portion of the tab attaching rod by a force with which the pushed stopper or locking member is to be restored to the original locked state.

Further, since the other member having a small thickness is sandwiched in the slider as described above, there are problems that the clothes or the bags are pulled by the other member and the sliding operation of the slider is hindered by the other member, and thus it is necessary to eliminate such problems.

Disclosure of Invention

The present invention has been made in view of the above conventional problems, and a specific object thereof is to provide a slider for a slide fastener, which can easily attach a tab to a tab attaching lever arranged on a slider body from behind, and can prevent other members such as a thin cloth piece from being sandwiched between an upper wing plate of the slider body and a free end portion of the tab attaching lever.

In order to achieve the above object, the present invention provides a slider for a slide fastener, having a basic configuration in which a tab attaching lever for holding a tab is integrally formed in a cantilever manner on an upper surface of an upper blade of a slider body having the upper and lower blades, the tab attaching lever including: a fixed end portion rising from the upper wing plate; and a free end portion provided with an insertion gap through which a part of the tab is insertable, the free end portion being disposed between the free end portion and the upper wing plate, and a locking member configured to lock the insertion gap being disposed in the slider body.

In the slider for a slide fastener according to the present invention, it is preferable that the tab attaching lever has a fixing portion at the free end portion, the fixing portion engaging at least a part of the locking member attached to the attaching portion to fix the locking member, and the locking member includes: a main body portion mounted on the mounting portion; an elastic piece portion extending from the main body portion and elastically deformable in the vertical direction; and a locking portion that is disposed on the elastic piece portion and is capable of being engaged with and disengaged from the fixing portion, wherein the lock holding structure is configured to restrict elastic deformation of the elastic piece portion in a vertical direction.

In this case, it is preferable that the fixed portion is configured by a step portion disposed at the free end portion, the elastic piece portion is disposed so that a part of the elastic piece portion is in contact with or close to the free end portion of the tab attaching rod, the engaging and disengaging portion is configured by a bulge portion bulging on an upper surface of the elastic piece portion, and the lock holding structure is configured such that an amount of elastic deformation of the elastic piece portion is limited to a size that enables an upper end of the bulge portion to move to a height position of a lower end of the step portion.

In this case in particular, it is preferable that the mounting portion is constituted by a groove provided on an upper surface of the upper wing plate. Further, it is preferable that the latch member has a pair of shoulders disposed so as to sandwich the elastic piece portion, and the elastic piece portion and the rising portion are disposed in a region between the pair of shoulders. Preferably, a recess is provided in an upper surface of the elastic piece portion.

In the slider for a slide fastener according to the present invention, the fixing portion may be configured by a protrusion protruding from the free end portion of the tab attaching lever, the elastic piece portion may be disposed so as to be bent in an S-shape from the main body portion toward the free end portion of the tab attaching lever, the engaging and disengaging portion may be configured by a hole formed in a distal end portion of the elastic piece portion, and the lock holding structure may be configured such that the protrusion is inserted into the hole to fix the distal end portion of the elastic piece portion to the free end portion, thereby restricting elastic deformation of the elastic piece portion.

In this case, the mounting portion is preferably configured by a dovetail groove disposed on an upper surface of the upper blade. Further, preferably, the locking member has: a pair of leg portions extending in two strands from the main body portion and elastically deformable in a slider width direction; and a pair of protruding portions protruding in a direction away from each other at the distal ends of the leg portions, wherein a pair of protruding portions that engage with the protruding portions of the locking member attached to the attachment portion are provided on the upper surface of the upper wing plate in a protruding manner.

In the slider for a slide fastener according to the present invention, the locking member may include: a main body portion mounted on the mounting portion; and a locking portion that is provided upright on an upper surface of the main body portion and that comes into contact with the free end portion of the pull tab attaching rod when the locking member is attached and fixed, wherein the locking holding structure is constituted by the locking portion.

In this case, the mounting portion is preferably formed by a dovetail groove disposed on an upper surface of the upper blade. Further, preferably, the locking member has: a pair of legs extending in two strands from the body portion and elastically deformable in the slider width direction); and a pair of protruding portions protruding in a direction away from each other at the distal ends of the leg portions, wherein a pair of protruding portions that engage with the protruding portions of the locking member attached to the attachment portion are provided on the upper surface of the upper wing plate in a protruding manner.

ADVANTAGEOUS EFFECTS OF INVENTION

In the slider for a slide fastener according to the present invention, the tab attaching lever is integrally formed in a cantilever shape on the upper surface of the upper blade of the slider body, and the locking member for locking the insertion gap formed between the upper blade and the free end portion of the tab attaching lever is engaged with the attaching portion of the slider body and is immovably fixed. Further, the slider has a lock holding structure capable of holding a locked state of the insertion gap and preventing other members from entering the insertion gap when the lock member is fixed to the attachment portion of the slider body.

With the slider according to the present invention having such a configuration, after the slider body integrally provided with the tab attaching lever is formed, the tab can be held by the tab attaching lever by inserting a part of the tab into the insertion gap provided between the upper blade and the free end portion of the tab attaching lever. Then, by attaching and fixing the locking member to the attachment portion of the slider body, the insertion gap is locked, thereby completing the attachment of the pull tab. In this way, in the slider of the present invention, the tab can be easily attached to the tab attaching lever arranged on the slider body from behind.

Further, since the present invention has the lock holding structure, it is possible to hold the locked state of the insertion gap provided between the upper blade and the free end portion of the tab attaching lever after the tab is attached and the lock member is attached to the slider body and immovably fixed. This can reliably prevent other members such as thin cloth pieces from entering between the upper blade and the free end portion of the tab attaching rod and being caught.

Therefore, when the slide fastener having the slider is used by being attached to a product such as clothing or luggage, it is possible to effectively prevent a problem that another member is caught in the slider, for example, a problem that the clothing or luggage is pulled by another member or a sliding operation of the slider 1 is hindered by another member.

In the present invention, the closed state of the insertion gap means a state in which the insertion gap is completely closed by the closing member by positioning the closing member between the upper wing plate of the slider body and the free end portion of the tab attaching rod, and the housing space of the tab attaching shaft portion formed between the upper wing plate of the slider body and the tab attaching rod is blocked.

In the slider of the present invention, a method of attaching the tab to the tab attaching lever is not particularly limited. For example, as described above, the tab can be attached by attaching and fixing the locking member to the attachment portion of the slider body after the tab is held by the tab attachment lever. In addition, the tab may be attached by attaching the locking member to the attachment portion of the slider body before the tab is held by the tab attachment lever, holding the tab by the tab attachment lever via the insertion gap, and then fixing the locking member to the slider body.

In the slider of the present invention, the tab attaching lever includes a fixing portion at a free end portion thereof, and the fixing portion engages with at least a part of the locking member attached to the attaching portion to fix the locking member. Further, the locking member includes: a main body portion mounted on the mounting portion; an elastic piece portion extending from the main body portion and elastically deformable in the vertical direction; and a locking part which is arranged on the elastic sheet part and can be locked and released with the fixed part. The latch holding structure is configured to restrict elastic deformation of the elastic piece portion in the vertical direction.

In the slider according to the present invention configured as described above, in order to make the tab attaching lever, the locking member, and the lock holding structure, the elastic piece portion of the locking member is elastically deformed so that the engaging and disengaging portion of the locking member is engaged with the fixing portion of the tab attaching lever, whereby the locking member attached to the attaching portion can be stably fixed to a predetermined position. In addition, in this slider, the latch holding structure is configured by restricting the elastic deformation of the elastic piece portion in the vertical direction, and therefore, when the latch member is fixed to the mounting portion as described above, the state in which the insertion gap is latched by the latch member can be easily held.

In this case, the fixing portion is configured by a step portion disposed at the free end portion, the elastic piece portion is disposed so that a part of the elastic piece portion is in contact with or close to the free end portion of the tab attaching lever, and the engaging and disengaging portion is configured by a protruding portion protruding on an upper surface of the elastic piece portion. In the latch holding structure, the elastic deformation amount of the elastic piece portion is limited to a size that enables the upper end of the bulge portion to move to a height position of the lower end of the stepped portion. Thus, the slider of the present invention can be easily provided with the fixing portion and the engaging and disengaging portion, and the locked state of the insertion gap can be stably maintained by the lock maintaining structure when the locking member is fixed to the mounting portion.

In particular, in this case, the mounting portion of the present invention is configured by the recessed groove disposed on the upper surface of the upper wing plate, and thus the locking member can be easily and stably mounted to the mounting portion.

In the present invention, the latch member has a pair of shoulder portions disposed so as to sandwich the elastic piece portion, and the elastic piece portion and the bulge portion are disposed in a region of the shoulder portions when viewed from a side surface side of the latch member. Here, the fact that the elastic piece portion and the bulge portion are disposed in the region of the shoulder portion means that the elastic piece portion and the bulge portion are disposed inside the front, rear, upper and lower end edges of the shoulder portion, and the elastic piece portion and the bulge portion are hidden by the shoulder portion when viewed from the side surface side of the latch member. In this way, the pair of shoulder portions are formed so as to extend to a larger extent than the elastic piece portion and the bulging portion, so that the elastic piece portion and the bulging portion can be protected by the shoulder portions.

Therefore, when the locking member is fixed to the mounting portion, even if, for example, another member collides with the locking member from the outside or the tab collides with the locking member from the inside, the other member is prevented from contacting the elastic piece portion of the locking member, and the state in which the engaging and disengaging portion of the locking member is engaged with the fixing portion of the tab mounting rod is maintained, so that the state in which the locking member is immovably fixed and the insertion gap is locked can be stably maintained.

In the present invention, a concave portion is disposed on an upper surface of the elastic piece portion.

For example, the following cases are available: in order to exchange a tab attached to a tab attaching rod, etc., the locking/unlocking portion of the locking member is unlocked from the fixed portion of the tab attaching rod, and the locking member is pulled out from the attachment portion. In this case, since the concave portion is provided on the upper surface of the elastic piece portion, the elastic piece portion can be easily pressed by the pressing member in a state where the rod-shaped pressing member is inserted into the concave portion, and therefore, the elastic piece portion can be elastically deformed downward by the pressing member, and the locked state between the locking portion and the fixed portion can be reliably released.

In the slider according to the present invention, the fixing portion may be constituted by a protrusion protruding from the free end portion of the tab attaching lever, the elastic piece portion may be disposed so as to be bent in an S-shape from the main body portion toward the free end portion of the tab attaching lever, and the engaging and disengaging portion may be constituted by a hole formed in a distal end portion of the elastic piece portion. In addition, the latch holding structure may be configured such that the protrusion is inserted into the hole to fix the distal end portion of the elastic piece portion to the free end portion, thereby restricting elastic deformation of the elastic piece portion. Even with this configuration, the fixing portion and the engaging and disengaging portion can be easily provided in the slider of the present invention, and the locked state of the insertion gap can be stably maintained by the lock maintaining structure when the locking member is fixed to the mounting portion.

In this case, the mounting portion is configured by a dovetail groove disposed on the upper surface of the upper blade, and thus the locking member can be easily and stably mounted to the mounting portion.

Further, the locking member includes: a pair of legs extending in two strands from the body portion of the latch member and elastically deformable in the slider width direction; and a pair of protruding parts protruding in a direction away from each other at the front ends of the leg parts, wherein a pair of protruding parts locking the protruding parts of the locking member attached to the attachment part are provided on the upper surface of the upper wing plate in a protruding manner. By providing the slider with such a configuration, the locking member attached to the attachment portion can be fixed more stably.

In the slider of the present invention, the latch member includes: a main body portion mounted on the mounting portion; and a locking part which is vertically arranged on the upper surface of the main body part and is contacted with the free end part of the pull tab mounting rod when the locking part is fixedly mounted. The lock holding structure is configured by a locking portion of a locking member. In the slider having such a configuration, when the locking member is fixed to the mounting portion of the slider body, the insertion gap can be reliably locked by the locking portion of the locking member, and the locked state of the insertion gap can be stably maintained.

In this case, the mounting portion is configured by a dovetail groove disposed on the upper surface of the upper blade, and thus the locking member can be easily and stably mounted to the mounting portion.

Further, the locking member includes: a pair of legs extending in two strands from the body portion of the latch member and elastically deformable in the slider width direction; and a pair of protruding parts protruding in a direction away from each other at the front ends of the leg parts, wherein a pair of protruding parts locking the protruding parts of the locking member attached to the attachment part are provided on the upper surface of the upper wing plate in a protruding manner. With this configuration, the slider can stably fix the latch member attached to the attachment portion.

Drawings

Fig. 1 is an exploded perspective view of a slider for slide fastener according to embodiment 1 of the present invention.

Fig. 2 is a perspective view showing a latch member in the slider.

Fig. 3 is a cross-sectional view of the latching component.

Fig. 4 is a view of the latch member as viewed from the rear of the slider.

Fig. 5 is a partially enlarged view showing the slider body and the pull tab attaching lever when the slider is viewed from the rear.

FIG. 6 is a partial cross-sectional view of the slider body and the pull tab mounting lever.

Fig. 7 is a partial sectional view for explaining an operation of attaching the latch member to the slider body.

Fig. 8 is a partial sectional view showing a state where the latch member is attached and fixed to the slider body.

Fig. 9 is a partial sectional view for explaining an operation of pulling out the latch member from the slider body.

Fig. 10 is an exploded perspective view of a slider for slide fastener according to embodiment 2 of the present invention.

Fig. 11 is a side view showing a latch member in the slider.

Fig. 12 is a partial sectional view of a slider body and a pull tab attaching lever in the slider.

Fig. 13 is a schematic view showing a state before the latch member is attached to the slider body.

Fig. 14 is a schematic view for explaining an operation of attaching the latch member to the slider body.

Fig. 15 is a schematic view showing a state in which a latch member is attached to a slider body.

Fig. 16 is a partial sectional view illustrating an operation of attaching the pull tab to the pull tab attaching lever after the locking part is attached to the slide fastener main body.

Fig. 17 is a partial sectional view showing a state in which a tab is attached to a tab attaching rod.

Fig. 18 is a perspective view showing a locking member in a slider for a slide fastener according to embodiment 3 of the present invention.

Fig. 19 is a partial cross-sectional view showing a state in which a tab is attached to a tab attaching lever and a locking member is attached and fixed to a slider body.

Fig. 20 is an exploded perspective view of a conventional slider.

Detailed Description

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings by way of examples. The present invention is not limited to the embodiments described below, and various modifications can be made if the present invention has a configuration substantially similar to the present invention and can achieve the same operational effects.

For example, since the slider described in each of the following embodiments is a slider used for a slide fastener having a continuous fastener row in a coil shape, the flange is disposed only on the upper wing plate. However, the present invention is not limited to this, and is also applicable to a pull-down slider or the like which is used for a slide fastener in which individual elements are attached to a fastener tape by injection molding, and flanges are arranged on both upper and lower wing plates, for example.

Example 1

Fig. 1 is an exploded perspective view of a slider for a slide fastener according to example 1, fig. 2 to 4 are views showing a locking member in the slider, and fig. 5 and 6 are views showing an upper blade and a tab attaching lever in the slider.

In the following description, the slider sliding direction is defined as the front-rear direction, and particularly, the direction in which the slider moves to engage the element rows of the slide fastener is defined as the front, and the direction in which the slider moves to separate the coil-shaped element rows is defined as the rear. The height direction of the slider is defined as the vertical direction, and particularly, the direction on the side where the tab is attached to the slider body is defined as the upward direction, and the direction on the opposite side is defined as the downward direction. The width direction of the slider is defined as the left-right direction.

The slider 1 for a slide fastener of example 1 is configured to be able to engage and disengage left and right element rows by sliding along a coiled continuous element row attached to opposite end edges of a pair of left and right fastener stringers, not shown.

As shown in fig. 1, the slider 1 further includes: a slider body 10; a tab attaching lever 20 integrally formed in a cantilever shape on the slider body 10; a latch 30 attached to the slider body 10; and a pull tab 5 held on the pull tab attaching rod 20. In this case, the tab 5 has: a flat plate-like tab body portion 5a which can be pinched by fingers; and an annular attachment shaft portion 5b integrally formed at one end of the tab main body portion 5 a.

In the slider 1 of example 1, the slider body 10, the tab attaching lever 20, and the tab 5 are manufactured by die-casting using a metal material such as an aluminum alloy or a zinc alloy. In the present invention, the material of these members is not particularly limited, and can be arbitrarily changed.

The slider body 10 in the slider 1 includes: upper and lower wing plates 11, 12 arranged substantially parallel to each other; a guide post, not shown, for connecting the front ends of the upper and lower blades 11, 12 to each other; and flanges 13 vertically extending from the left and right side edges of the upper wing plate 11 toward the lower wing plate 12.

Left and right shoulder openings are formed in the front portion of the slider body 10 so as to sandwich the guide posts, and a rear opening is formed in the rear end of the slider body 10. Further, a Y-shaped element guide path 14 communicating the left and right shoulder openings and the rear opening is formed between the upper and lower wing plates 11, 12. Further, on the upper surface side of the upper wing plate 11 in the slider body 10, a recessed groove 11a to which the latch member 30 can be attached is recessed forward from the rear end (edge end on the rear opening side) of the upper wing plate 11.

The tab attaching lever 20 integrally formed with the slider body 10 includes: a fixed end 21 rising from a front end of the upper blade 11 (forward side with respect to the front-rear direction center of the slider 1); an extension portion 22 bent from the fixed end portion 21 and extending rearward; and a free end portion 23 formed by bending from the extension portion 22 toward the upper blade 11.

By integrally forming the tab attaching lever 20 to the slider body 10, the strength of the tab attaching lever 20 can be increased. Therefore, compared to the case where the tab attaching lever 20 of the present embodiment 1 is caulked and fixed to the slider body, for example, after the tab 5 is attached to the tab attaching lever 20 and when the tab 5 is strongly pulled, the tab attaching lever 20 of the present embodiment can effectively prevent the tab attaching lever itself from being deformed by the pulling force.

In example 1, the tab attaching rod 20 is formed in a downwardly concave shape as a whole when viewed from the side surface, and a housing space 24 for housing the attaching shaft portion 5b of the tab 5 is formed between the lower end edge of the extension portion 22 of the tab attaching rod 20 and the upper surface of the upper blade 11.

As shown in fig. 5 and 6, the free end portion 23 of the tab attaching rod 20 is disposed so as to form an insertion gap 25 through which the attaching shaft portion 5b of the tab 5 is inserted, with the upper surface of the upper blade 11. Further, a stepped portion 23a is formed on an end surface of the tab attaching rod 20 on the free end portion 23 side (a surface facing the concave groove 11a of the upper blade 11), and the stepped portion 23a functions as a fixing portion for engaging a later-described raised portion 33 of the lock member 30 and fixing the lock member 30.

Further, a chamfered portion 23b is formed at the rear portion of the free end portion 23. Thus, when the attachment shaft portion 5b of the tab 5 is introduced into the housing space 24 through the insertion gap 25, the attachment shaft portion 5b of the tab 5 can be easily inserted into the insertion gap 25, and when the lock member 30 is inserted into the recess 11a of the upper blade 11, the elastic piece portion 32, which will be described later, of the lock member 30 can be easily elastically deformed downward.

The latch member 30 of embodiment 1 has: a main body portion 31 mounted in such a manner as to be inserted into the recess 11a of the upper wing plate 11; an elastic piece portion 32 extending from the body portion 31 and elastically deformable in the vertical direction; a bulge portion 33 disposed on the upper surface side of the elastic piece portion 32; and a pair of left and right shoulder portions 34 disposed on the upper surface of the body portion 31 so as to sandwich the elastic piece portion 32.

The main body 31 of the locking member 30 includes: left and right side bar portions 31a, 31b having a substantially U-shape when viewed from above; and a front rod 31c connecting the front ends of the left and right side rods 31a, 31 b. When the latch member 30 is inserted into the notch 11a of the upper panel 11, the outer side surfaces of the left and right side lever portions 31a, 31b (i.e., the left side surface of the left side lever portion 31a and the right side surface of the right side lever portion 31 b) are configured to slide in contact with the left and right side wall surfaces of the notch 11 a. The dimension in the front-rear direction of the main body 31 is set to be substantially the same as the dimension in the front-rear direction of the recess 11a of the upper wing plate 11.

The elastic piece portion 32 of the latch member 30 is provided to extend obliquely upward and rearward from a front rod portion 31c disposed at the front end of the main body portion 31 in the left-right direction, and is disposed so that a substantially central portion in the front-rear direction of the elastic piece portion 32 comes into contact with (or approaches) the free end portion 23 of the tab attaching lever 20 when the latch member 30 is attached to the recess 11a of the upper blade 11. Further, a recess 32a into which a pressing member 7 (see fig. 9) described later can be fitted is disposed on the upper surface of the rear end portion of the elastic piece portion 32.

The elastic piece portion 32 is configured to be elastically deformed in the vertical direction by mainly bending the base end portion side connected to the front rod portion 31 c. In this case, the elastic deformation amount of the elastic piece portion 32 is limited to such a size that the upper end surface 33a of the bulging portion 33 in the latch member 30 can be moved to the height position of the lower end of the stepped portion 23a formed on the tab attaching bar 20 when the latch member 30 is attached to the recess 11a of the upper blade 11.

The bulging portion 33 of the lock member 30 is provided as an engaging and disengaging portion which can be engaged with and disengaged from the step portion 23a provided at the free end portion 23 of the tab attaching lever 20, and bulges on the upper surface side of the elastic piece portion 32. In this case, the dimension in the width direction of the elastic piece portion 32 and the bulging portion 33 in the locking member 30 is set to be the same as the dimension in the width direction in the stepped portion 23a (particularly, the lower end surface of the stepped portion 23a) of the tab attaching lever 20.

Further, the rear end surface 33b of the ridge portion 33 is formed straight with respect to the front-rear direction of the slider body 10. The rear end surface 33b is disposed at a predetermined position in the front-rear direction corresponding to the stepped portion 23a of the tab attaching rod 20 when the locking member 30 is attached and fixed to the recessed groove 11a of the upper blade 11 as described below. In embodiment 1, the elastic piece portion 32 and the rising portion 33 of the latch member 30 are formed with a front inclined surface 33c inclined downward from the upper end of the rising portion 33 toward the front.

A pair of left and right shoulder portions 34 of the latch member 30 are provided upright on the left and right side lever portions 31a, 31b of the body 31 so as to sandwich the elastic piece portion 32. In this case, the distal end surfaces of the left and right shoulder portions 34 are disposed on the same plane as the distal end surfaces of the main body portion 31 and the elastic piece portion 32. The outer side surfaces of the left and right shoulder portions 34 (i.e., the left side surface of the left shoulder portion 34 and the right side surface of the right shoulder portion 34) are arranged on the same plane as the outer side surfaces of the left and right side rod portions 31a and 31b, respectively.

The rear surface, the upper surface, and the lower surface of the elastic piece portion 32 are formed inside the rear surface, the upper surface, and the lower surface of the left and right shoulder portions 34, and the shoulder portions 34 are formed so as to protrude upward and rearward from the elastic piece portion 32 and the bulge portions 33 such that the elastic piece portion 32 and the bulge portions 33 of the latch member 30 are disposed in the regions of the shoulder portions 34 when the latch member 30 is viewed from the side surface side. Thus, the elastic piece portion 32 and the rising portion 33 can be protected by the left and right shoulder portions 34, and the attachment shaft portion 5b of the tab 5 and other members are less likely to directly collide with the elastic piece portion 32 and the rising portion 33.

Next, the procedure for assembling the slider 1 of the present embodiment 1 will be described.

First, an operation of holding the tab 5 on the tab attaching lever 20 of the slider body 10 is performed. Specifically, the attachment shaft portion 5b of the tab 5 is introduced from the rear side of the slider body 10 into the insertion gap 25 disposed between the upper surface of the upper blade 11 and the free end portion 23 of the tab attachment lever 20. At this time, since the chamfered portion 23b is formed in the rear portion of the free end portion 23 as described above, the attachment shaft portion 5b of the tab 5 can be smoothly introduced into the insertion gap 25.

Then, the attachment shaft portion 5b of the tab 5 is moved into the accommodation space 24 formed between the upper surface of the upper blade 11 and the extension portion 22 of the tab attachment rod 20 via the insertion gap 25, and is accommodated in the accommodation space 24. Thereby, the tab 5 is held on the tab attaching lever 20 of the slider body 10.

Next, an operation of attaching the latch member 30 to the slider body 10 holding the tab 5 is performed. In this operation, as shown in fig. 7, the latch member 30 is first inserted into the recess 11a from the rear end of the slider body 10 in a posture in which the front lever portion 31c of the latch member 30 is directed forward. Then, the lower surface (back surface) of the body 31 of the lock member 30 is brought into sliding contact with the bottom surface of the recessed groove 11a, and the outer side surfaces of the body 31 and the shoulder 34 of the lock member 30 are brought into sliding contact with the left and right side wall surfaces of the recessed groove 11a, and the lock member 30 is pushed forward.

At this time, the forward inclined surface 33c of the latch member 30 abuts on the free end portion 23 of the tab attaching rod 20, and the free end portion 23 of the tab attaching rod 20 moves relatively rearward with respect to the latch member 30 while being in sliding contact with the forward inclined surface 33c of the latch member 30. As a result, the protruding portion 33 of the latch member 30 is pushed downward by the free end portion 23 of the tab attaching rod 20 while the latch member 30 moves forward, and the elastic piece portion 32 of the latch member 30 is elastically deformed downward, so that the protruding portion 33 of the latch member 30 can be inserted under the free end portion 23 of the tab attaching rod 20.

When the locking member 30 further advances and the rear end surface 33b of the bulging portion 33 reaches the position of the step portion 23a formed in the free end portion 23 of the tab attaching lever 20, the pressing of the bulging portion 33 by the free end portion 23 is released, and the elastic piece portion 32 is elastically restored to the original position. As a result, as shown in fig. 8, the raised portion 33 of the lock member 30 enters the space formed in the front side of the stepped portion 23a, and the raised portion 33 is locked to the stepped portion 23a of the free end portion 23.

By locking the ridge portion 33 of the latch member 30 to the free end portion 23 of the tab attaching lever 20 in this manner, the latch member 30 is immovably fixed by being attached to the slider body 10. Thereby, the insertion gap 25 formed in the slider body 10 is in a state of being locked by the locking member 30, and the attachment of the tab 5 to the slider body 10 is completed.

By performing the above-described operation, the tab 5 is mounted from the rear to the slider body 10 integrally formed with the tab mounting lever 20, and the slider 1 of example 1 can be easily assembled. Thus, for example, as a manufacturing side of clothes or bags, the pull tab 5 having a desired design can be freely attached to the slider body 10, and the range of design of clothes or bags can be greatly expanded.

In the slider 1 of the present embodiment 1 assembled as described above, the ridge portion 33 of the latch member 30 fixed to the slider body 10 is locked to the free end portion 23 of the tab attaching lever 20, and the latch member 30 is immovably fixed. As described above, the elastic deformation amount of the elastic piece portion 32 of the lock member 30 is limited to a size that enables the upper end surface 33a of the bulging portion 33 to move to the height position of the lower end of the stepped portion 23a of the tab attaching lever 20.

Thus, when the latch member 30 is fixed to the slider body 10, the state in which the insertion gap 25 between the upper surface of the upper blade 11 and the free end portion 23 of the tab attaching lever 20 is latched by the latch member 30 can be stably maintained. This can reliably prevent other members, such as thin cloth pieces, accidentally present at the peripheral portion of the slider from entering the insertion gap 25 and being caught.

In particular, in the slider 1 of example 1, the pair of left and right shoulder portions 34 of the latch member 30 are disposed so as to extend upward and rearward from the elastic piece portion 32 and the bulge portion 33 with the elastic piece portion 32 interposed therebetween. Accordingly, the elastic piece portion 32 and the bulge portion 33 can be protected by the left and right shoulder portions 34, and therefore, it is possible to suppress direct collision of another member such as a thin cloth piece against the elastic piece portion 32 of the lock member 30 from the outside, and to suppress direct collision of the attachment shaft portion 5b of the tab 5 against the elastic piece portion 32 and the bulge portion 33 of the lock member 30 from the inside. This makes it possible to more stably maintain the state in which the ridge portion 33 of the latch member 30 is locked to the free end portion 23 of the tab attaching lever 20, and to stably maintain the immovable state of the latch member 30 fixed to the slider body 10.

Therefore, when a slide fastener is configured by using the slider 1 of example 1 and used by attaching the slide fastener to a product such as clothing or luggage, it is possible to effectively prevent a problem that another member is caught in the slider 1, for example, a problem that the clothing or luggage is pulled by another member or a sliding operation of the slider 1 is hindered by another member.

Further, in the slider 1 of the present embodiment 1, as shown in fig. 9, in the case of taking out the tab 5 temporarily attached to the tab attaching lever 20, the rod-like pressing member 7 for pressing the elastic piece portion 32 of the latch member 30 is prepared, and one end of the pressing member 7 is fitted into the recess 32a formed on the rear end portion of the elastic piece portion 32. Then, the pressing member 7 presses the elastic piece portion 32 downward to elastically deform the elastic piece portion 32, whereby the bulging portion 33 of the lock member 30 is pulled out from the free end portion 23 of the tab attaching lever 20, and the locked state between the bulging portion 33 and the free end portion 23 is released.

Further, since the bulging portion 33 of the latch member 30 is bored from below the free end portion 23 of the tab attaching lever 20 by pulling the latch member 30 rearward in a state where the elastic piece portion 32 is pressed by the pressing member 7, the latch member 30 can be easily taken out from the recess 11a of the slider body 10, and the insertion gap 25 disposed between the upper surface of the upper blade 11 and the free end portion 23 of the tab attaching lever 20 can be opened. Then, the attachment shaft portion 5b of the tab 5 is pulled out of the housing space 24 through the open insertion gap 25, whereby the tab 5 can be easily taken out.

Example 2

Fig. 10 is an exploded perspective view of the slider for slide fastener of example 2. Fig. 11 is a side view showing a latch member in the slider, and fig. 12 is a partial sectional view of a slider body and a pull tab attaching lever in the slider.

In the slider according to embodiment 2 and embodiment 3 described later, the same reference numerals are used for members or portions having the same configurations as those described in embodiment 1, and the description thereof will be omitted.

The slider 2 for a slide fastener of embodiment 2 includes: a slider body 40; a tab attaching lever 50 integrally formed in a cantilever shape on the slider body 40; a latch 60 mounted on the slider body 40; and a pull tab 5 held on the pull tab attaching rod 50.

The slider body 40 in the slider 2 includes: upper and lower wing plates 41, 42 arranged substantially parallel to each other; a guide post, not shown, for connecting the front ends of the upper and lower blades 41, 42 to each other; and flanges 43 vertically extending from the left and right side edges of the upper blade 41 toward the lower blade 42.

A stepped portion 41a is provided on the upper surface side of the rear end portion of the upper blade 41 in the slider body 40, and a pair of left and right protrusions 41b are provided on the stepped portion 41a in a protruding manner. Further, a dovetail groove 41c to which the locking member 60 can be attached is formed in the center portion of the upper blade 41 in the lateral direction from the step portion 41a toward the front. Further, a guide groove 41d into which a guide portion 67 of the locking member 60, which will be described later, is fitted is recessed from the rear end of the upper blade 41 toward the front in a portion where the step portion 41a and the dovetail groove 41c of the upper blade 41 are arranged.

The tab attaching lever 50 integrally formed on the upper blade 41 of the slider body 40 includes: a fixed end portion 51 rising from the front end portion of the upper wing plate 41; an extension portion 52 extending rearward so as to be bent from the fixed end portion 51; and a free end portion 53 formed so as to be bent from the extension portion 52 toward the upper blade 41. Further, an accommodation space 54 for accommodating the attachment shaft portion 5b of the tab 5 is formed between the lower end edge of the extended portion 52 of the tab attachment rod 50 and the upper surface of the upper blade 41.

As shown in fig. 12, the free end portion 53 of the tab attaching rod 50 is disposed so as to form an insertion gap 55 through which the attaching shaft portion 5b of the tab 5 can be inserted, between the free end portion and the upper surface of the upper blade 41. Further, a cutout 53a is provided at the rear end of the tab attaching rod 50 on the free end portion 53 side, and a projecting portion 53b projecting rearward is disposed as a fixing portion of the latch member 60 in the cutout 53 a. In this case, the protrusion 53b includes: a cylindrical column portion 53c protruding from the free end portion 53; and a locking head portion 53d arranged to bulge toward the front end of the column portion 53 c.

The locking member 60 in the present embodiment 2 has: a main body portion 61 fitted to be fitted into the dovetail groove 41c of the upper blade 41; an elastic piece 62 extending upward from the front end of the body 61; a hole 63 formed in the front end of the elastic piece 62; ear portions 64 extending in the left-right direction from the front end portions of the elastic piece portions 62; a pair of right and left leg portions 65 extending so as to branch rearward from the main body portion 61 into two legs; a protruding piece 66 protruding in a direction away from each other at the tip of each leg 65; and a guide portion 67 provided to hang on the lower surface (back surface) of the body portion 61.

The body portion 61 of the locking member 60 is formed in a flat plate shape so as to be fitted into the dovetail groove 41c provided in the upper blade 41. The elastic piece portion 62 of the locking member 60 is formed so as to be bent into a substantially S-shape and elastically deformable in the vertical direction. The diameter of the hole 63 formed in the elastic piece portion 62 is set to be larger than the diameter of the column portion 53c of the protrusion portion 53b and smaller than the maximum diameter of the locking head portion 53 d.

The left and right ear portions 64 of the latch member 60 are provided to facilitate pinching of the distal end portion of the elastic piece portion 62 with a finger. The pair of right and left leg portions 65 of the latch member 60 are disposed obliquely with respect to the front-rear direction so that the distance between the leg portions 65 gradually increases toward the front end, and are formed so as to be elastically deformable in the right-left direction (slider width direction). In this case, in order to facilitate elastic deformation of the left and right leg portions 65 toward the inside, slits having a predetermined size may be formed in the leg portions 65 on the inside of the proximal end portion on the side of the body portion 61.

The protruding piece 66 of the locking member 60 is formed to have a size that can be fitted into a region of the stepped portion 41a on the front side of the protruding portion 53b protruding from the upper blade 41. The protruding piece 66 is configured to be engaged with the protrusion 41b of the upper blade 41 when fitted into the region of the stepped portion 41 a. The guide portion 67 of the locking member 60 is formed along the front-rear direction, and the width dimension of the guide portion 67 is set to match the size of the groove width of the guide groove 41d recessed in the upper paddle 41.

When assembling the slider 2 of embodiment 2 having such a configuration, first, the operation of attaching and temporarily fixing the latch member 60 to the slider body 40 is performed. Specifically, as shown in fig. 13, the latch member 60 is inserted into the dovetail groove 41c of the upper blade 41 from the rear side of the slider body 40, and the body portion 61 of the latch member 60 is fitted into the dovetail groove 41 c. At this time, the guide portion 67 of the latch member 60 is fitted into the guide groove 41d of the upper blade 41, whereby the latch member 60 can be easily positioned with respect to the slider body 40.

Then, after the body portion 61 of the latch member 60 is fitted into the dovetail groove 41c and the left and right leg portions 65 or the left and right protruding pieces 66 of the latch member 60 are brought into contact with the protruding portion 41b of the upper wing plate 41, as shown in fig. 14, the latch member 60 is pushed forward while pushing the left and right protruding pieces 66 of the latch member 60 inward and elastically deforming the left and right leg portions 65 in the slider width direction.

Thus, as shown in fig. 15, the latch member 60 is fitted into the dovetail groove 41c until the tip end of the elastic piece portion 62 comes into contact with the tip end surface of the dovetail groove 41c, and the protruding piece portion 66 of the latch member 60 is locked with the protruding portion 41b of the upper blade 41, whereby the latch member 60 can be temporarily fixed to the upper blade 41 of the slider body 40.

Next, an operation of holding the tab 5 on the tab attaching lever 50 of the slider body 40 to which the locking member 60 is temporarily fixed is performed. As shown in fig. 16, in this operation, the elastic piece portion 62 of the latch member 60 temporarily fixed to the slider body 40 is pressed downward, and the elastic piece portion 62 is elastically deformed.

Thereby, the insertion gap 55 through which the attachment shaft portion 5b of the tab 5 can be inserted is opened between the upper surface of the upper blade 41 and the free end portion 53 of the tab attachment rod 50. In a state where the insertion gap 55 is open, the attachment shaft portion 5b of the tab 5 is introduced into the receiving space 54 from the rear side of the slider body 40 through the insertion gap 55, whereby the tab 5 is held on the tab attachment lever 50 of the slider body 40.

After the tab 5 is held by the tab attaching lever 50, the elastic piece portion 62 of the locking member 60 is elastically restored to its original state, and the tip end portion of the elastic piece portion 62 is brought close to the rear side of the free end portion 53 of the tab attaching lever 50. Further, the projection 53b formed on the free end portion 53 of the tab attaching lever 50 is fitted into the hole portion 63 formed on the tip end portion of the elastic piece portion 62.

Thus, as shown in fig. 17, since the distal end portion of the elastic piece portion 62 is fixed to the free end portion 53 of the tab attaching lever 50, the latch member 60 is immovably fixed to the slider body 40, and the insertion gap 55 is in a state of being latched by the latch member 60. This completes the attachment of the tab 5 to the slider body 40.

At this time, the body portion 61 of the latch member 60 is fitted into the dovetail groove 41c of the upper blade 41, and the distal end portion of the elastic piece portion 62 is fixed to the free end portion 53 of the tab attaching lever 50, so that the elastic deformation of the elastic piece portion 62 in the latch member 60 in the vertical direction is restricted. This can stably maintain the state in which the insertion gap 55 is locked by the locking member 60.

As described above, the slider 2 of the present embodiment 2 can easily attach the pull tab 5 to the slider body 40 from behind. Particularly in the slider 2 of embodiment 2, the attachment of the pull tab 5 can be performed after the latch member 60 is temporarily fixed to the slider body 40.

Thus, for example, by delivering the slider in a state in which the locking member 60 is temporarily fixed to the slider body 40 to the clothing or case manufacturing side, the tab 5 having a desired design can be freely attached to the slider body 40 on the clothing or case manufacturing side. Further, since the latch member 60 is temporarily fixed to the slider body 40, the latch member 60 attached to the slider body 40 can be prevented from being lost, and the parts of the slider body 40 and the latch member 60 can be easily managed.

In the slider 2 according to example 2, the tip end portion of the elastic piece portion 62 of the locking member 60 is fixed to the free end portion 53 of the tab attaching lever 50, so that the elastic deformation of the elastic piece portion 62 in the vertical direction is restricted, and the locked state of the insertion gap 55 can be stably maintained. Therefore, it is possible to reliably prevent other members such as a thin cloth from being inserted into the insertion gap 55 and being caught.

Therefore, for example, when a slide fastener is configured by using the slider 2 of example 2 and used by attaching the slide fastener to a product such as clothing or luggage, it is possible to effectively prevent the occurrence of a conventional problem caused by the insertion of another member into the slider 2.

In the slider 2 according to example 2, when the tab 5 temporarily attached to the tab attaching lever 50 is taken out, the tip end portion of the elastic piece portion 62 fixed to the free end portion 53 of the tab attaching lever 50 is pulled rearward, and the protrusion 53b formed on the free end portion 53 of the tab attaching lever 50 is pulled out from the hole portion 63 formed on the tip end portion of the elastic piece portion 62. This allows the elastic piece portion 62 to be released from being locked to the free end portion 53 of the tab attaching lever 50.

Then, the elastic piece portion 62 of the locking member 60 is pressed downward to elastically deform the elastic piece portion 62, thereby opening the insertion gap 55. Further, the attachment shaft portion 5b of the tab 5 can be easily removed from the housing space 54 by being pulled out from the housing space 54 through the open insertion gap 55.

Example 3

FIG. 18 is a perspective view showing a locking member in the slider for a slide fastener according to embodiment 3; fig. 19 is a partial sectional view showing a state where the pull tab is attached to the pull tab attaching lever and the locking member is attached to and fixed to the slider body.

The slider 3 for a slide fastener of embodiment 3 includes: a slider body 70; a tab attaching lever 80 integrally formed in a cantilever shape on the slider body 70; a latch 90 mounted on the slider body 70; and a pull tab 5 held on the pull tab attaching rod 80.

The slider body 70 in the slider 3 includes: an upper blade 71 and a lower blade not shown arranged substantially parallel to each other; a guide column, not shown, for connecting the front end portions of the upper and lower blades 71 to each other; and flanges, not shown, vertically extending from the left and right side edges of the upper panel 71 toward the lower panel.

A stepped portion 71a is provided on the upper surface side of the rear end portion of the upper blade 71 in the slider body 70, and a pair of left and right protrusions 71b are provided on the stepped portion 71a in a protruding manner. Further, a dovetail groove 71c to which the lock member 90 can be attached is formed in the center portion of the upper blade 71 in the lateral direction from the step portion 71a toward the front. Further, a guide groove 71d into which a guide portion 97 of the locking member 90, which will be described later, is fitted is recessed forward from the rear end of the upper blade 71 at a portion where the step portion 71a and the dovetail groove 71c of the upper blade 71 are arranged.

The tab attaching lever 80 integrally formed with the slider body 70 includes: a fixed end portion 81 rising from the front end portion of the upper wing plate 71; an extension portion 82 extending rearward so as to be bent from the fixed end portion 81; and a free end portion 83 formed so as to be bent from the extension portion 82 toward the upper blade 71.

Further, an accommodation space 84 for accommodating the attachment shaft portion 5b of the tab 5 is formed between the lower end edge of the extended portion 82 of the tab attachment rod 80 and the upper surface of the upper blade 71. The free end portion 83 of the tab attaching rod 80 is disposed so as to form an insertion gap 85 through which the attaching shaft portion 5b of the tab 5 can be inserted, between the free end portion and the upper surface of the upper blade 71.

The locking member 90 in embodiment 3 has: a main body 91 fitted to be fitted into the dovetail groove 71c of the upper blade 71; a latch 92 erected on the body 91; a pair of right and left leg portions 95 extending so as to branch rearward from the main body portion 91 into two legs; a protruding piece 96 protruding in a direction away from each other at the tip of each leg 95; and a guide portion 97 provided to hang on the lower surface of the body portion 91.

The body 91 of the locking member 90 is formed in a flat plate shape so as to be fitted into the dovetail groove 71c provided in the upper blade 71. The latch portion 92 of the latch member 90 is formed in a substantially rectangular parallelepiped shape. In this case, the height dimension of the latch member 92 is set to such a size that the upper surface of the latch portion 92 is brought into contact with the free end portion 83 of the pull tab attaching lever 80 when the latch member 90 is fixed to the slider body 70.

The pair of right and left leg portions 95 of the latch member 90 are disposed obliquely with respect to the front-rear direction so that the distance between the leg portions 95 gradually increases toward the front end, and are formed to be elastically deformable in the right-left direction (slider width direction). In this case, similarly to the above-described embodiment 2, in order to easily elastically deform the left and right leg portions 95 inward, slits having a predetermined size may be formed in the leg portions 95 inward of the proximal end portions on the side of the body portion 91.

The protruding piece 96 of the locking member 90 is formed in a size that can be fitted into a region of the stepped portion 71a on the front side of the protruding portion 71b protruding from the upper blade 71. The protruding piece 96 is configured to be engaged with the protrusion 71b of the upper panel 71 when fitted into the region of the stepped portion 71 a. A guide portion 97 of the locking member 90 is formed along the front-rear direction, and the width dimension of the guide portion 97 is set in accordance with the groove width of the guide groove 71d recessed in the upper paddle 71.

When assembling the slider 3 of the present embodiment 3 having such a configuration, first, an operation of holding the tab 5 to the tab attaching lever 80 of the slider body 70 is performed. Specifically, as in the above-described embodiment 1, the attachment shaft portion 5b of the tab 5 is introduced into the housing space 84 from the rear side of the slider body 70 via the insertion gap 85 between the upper surface of the upper blade 71 and the free end portion 83 of the tab attachment lever 80. Thereby, the pull tab 5 is held on the pull tab attaching rod 80.

Next, an operation of attaching and fixing the latch member 90 to the slider body 70 is performed. In this operation, the locking member 90 is inserted from the rear side of the slider body 70 into the dovetail groove 71c of the upper blade 71, and the body 91 of the locking member 90 is fitted into the dovetail groove 71c, and at this time, the guide portion 97 of the locking member 90 is fitted into the guide groove 71d of the upper blade 71, whereby the locking member 90 can be easily positioned with respect to the slider body 70.

After the body portion 91 of the latch member 90 is fitted into the dovetail groove 71c, the left and right projecting pieces 96 of the latch member 90 are pressed inward, and the left and right leg portions 95 are elastically deformed in the slider width direction, so that the latch member 90 is pushed forward. Thus, as shown in fig. 19, since the projecting piece portion 96 of the latch member 90 is locked with the projecting portion 71b of the upper blade 71, the latch member 90 is immovably fixed to the upper blade 71 of the slider body 70, and the insertion gap 85 is latched by the latch portion 92 of the latch member 90, thereby completing the attachment of the tab 5 to the slider body 70.

In the slider 3 of example 3 in which the latch member 90 is immovably fixed to the slider body 70 in this way, the body portion 91 of the latch member 90 is fitted into the dovetail groove 71c of the upper blade 71, and the upper surface of the latch portion 92 of the latch member 90 is completely in contact with the free end portion 83 of the tab attaching lever 80, so that the state in which the insertion gap 85 is latched by the latch member 90 can be stably maintained.

As described above, the slider 3 of the present embodiment 3 can easily attach the pull tab 5 to the slider body 70 from behind. In addition, since the slider 3 can stably maintain the closed state of the insertion gap 85 by the closing portion 92 of the closing member 90 fixed to the slider body 70, it is possible to reliably prevent other members such as a thin cloth piece from entering the insertion gap 85 and being caught.

Description of the reference numerals

Claims (3)

1. A slider (1) for a slide fastener, wherein a tab attaching lever (20) for holding a tab (5) is integrally formed in a cantilever manner on an upper surface of an upper blade (11) of a slider body (10) having the upper and lower blades (11, 12), the tab attaching lever (20) comprising: a fixed end portion (21) rising from the upper wing plate (11); and a free end portion (23) provided with an insertion gap (25) through which a part of the pull tab (5) can be inserted, between the free end portion and the upper blade (11), and a locking member (30) for locking the insertion gap (25) is disposed on the slider body (10),

the slider body (10) has a groove (11a), the groove (11a) is recessed in the upper surface of the upper wing plate (11), and a part of the locking member (30) is attached to fix the locking member (30) immovably,

the recessed groove (11a) is disposed facing the free end portion (23) of the tab attaching rod (20) and facing forward from the rear end of the upper wing plate (11) on the rear mouth side,

the locking member (30) has: a main body portion (31) mounted on the recess (11 a); an elastic piece part (32) extending from the main body part (31) and capable of elastically deforming in the vertical direction; and a bulge part (33) bulging on the upper surface of the elastic piece part (32),

the tab attaching rod (20) has a step portion (23a) disposed at the free end portion (23), the step portion (23a) detachably engaging the ridge portion (33) of the latch member (30) attached to the recessed groove (11a) to fix the latch member (30),

the elastic piece portion (32) is disposed so that a part of the elastic piece portion (32) comes into contact with or approaches the free end portion (23) of the tab attaching rod (20) when the locking member (30) is fixed,

the slider has a lock holding structure capable of holding a locked state of the insertion gap (25) and preventing other members from entering the insertion gap (25) when the lock member (30) is fixed,

the lock holding structure is configured such that the amount of elastic deformation in the vertical direction of the elastic piece portion (32) is limited to a size that enables the upper end of the bulge portion (33) to move to the height position of the lower end of the stepped portion (23 a).

2. A slider for a slide fastener as defined in claim 1, wherein said latch member (30) has a pair of shoulders (34) disposed so as to sandwich said elastic piece portion (32),

the elastic piece portion (32) and the bulge portion (33) are arranged in a region between the pair of shoulder portions (34).

3. A slider for a slide fastener according to claim 1, wherein a recess (32a) is provided on an upper surface of said elastic piece portion (32).