Zipper tape repairing tool, tape repairing method

Abstract

A zipper tape repair tool and a tape repair method are provided. In a case where facing side edge portions of a pair of tapes in a zipper become in a bad state in which they overlap in the up-down direction, they are repaired to a good state in which they are raised in a shape bulging upward and closely contact in the width direction. In the good state (5a), the facing side edge portions of the pair of tapes (5) become a pair of raised portions (51), and a groove portion (52) recessed downward is formed between the pair of raised portions. The tape repair tool (4) includes a mounting portion (41) capable of being mounted to a slider (3), a pinching portion (42) extending from the mounting portion, and a protruding portion (43) partially protruding from the pinching portion and capable of repairing a bad state (5b) to a good state. The bad state is repaired to the good state by inserting the protruding portion into the groove portion and then passing the protruding portion through the portion of the bad state.

Description

Technical Field

[0001] This invention relates to a zipper with a repair tool and a repair method. Background Technology

[0002] As an example of a zipper, a known zipper includes: a pair of teeth; a pair of straps respectively fixed to the sides of the pair of teeth; a zipper pull that engages and disengages the pair of teeth; and a pull tab that operates the zipper pull (Patent Document 1).

[0003] The zipper in Patent Document 1 employs a structure suitable for concealing and maintaining the appearance of the zipper teeth. This structure is configured such that the opposing side edges of a pair of straps on the surface of the interlocking portion of a pair of zipper teeth are bent into an arch shape and made to contact tightly.

[0004] Existing technical documents

[0005] Patent documents

[0006] Patent Document 1: International Publication No. WO2023 / 243081

[0007] The ideal state for a zipper is when the two opposing side edges of the zipper are in close contact with each other in an arched bend. However, in reality, there is a situation where the two opposing side edges of the zipper overlap in the front and back directions, which is considered an undesirable state.

[0008] To restore a defective section of a pair of belts to a good condition, previously the only method was to move the pull head through the defective section to separate the pair of chain teeth, and then move the pull head in the opposite direction to engage the pair of chain teeth and return to the original position. Summary of the Invention

[0009] The present invention was made in view of the above circumstances, and its object is to provide a technique suitable for restoring a defective portion of a pair of bands to a good state.

[0010] A zipper to which this invention applies includes: a pair of chain teeth extending in a front-to-back direction and facing each other in a width direction; a pair of straps respectively fixed to the upper surfaces of the pair of chain teeth and extending in a front-to-back direction, with the straps having a good and a bad condition above the meshing portion of the pair of chain teeth; and a zipper pull capable of engaging and disengaging the pair of chain teeth. In the good condition, the opposing side edges of the pair of straps are formed as a pair of raised portions that bulge upwards and are in close contact in the width direction, and a downwardly recessed groove is formed between the pair of raised portions. In the bad condition, the opposing side edges of the pair of straps overlap in the vertical direction. Based on such a zipper, the strap repair tool of this invention can be rotatably mounted to the zipper pull in a front-to-back direction while extending radially about the zipper pull when viewed from the side. The repair tool includes: a mounting part that can be mounted on the zipper pull; a gripping part that extends outward in a radial direction from the mounting part; and a protrusion that partially protrudes from the gripping part and is capable of repairing a defective condition to a good condition. Furthermore, the protrusion can be inserted into a groove.

[0011] Even when the repair tool is installed on the zipper puller, it doesn't necessarily function as a pull tab. For example, if the repair tool is pulled to move the zipper puller in the back-and-forth direction, it cannot function as a pull tab if the mounting part is damaged. To enable the repair tool to function as a pull tab, it is preferable to have a structure in which the repair tool has the rigidity to function as a pull tab.

[0012] The protrusion can be formed on any surface, but in order to stabilize the repair tool when the protrusion is inserted into the groove and pressed against a pair of chain teeth, it is preferable to adopt the following structure: that is, the protrusion is formed on the part of the gripping part other than the outer surface facing outward in the radial direction and the inner surface facing inward in the radial direction.

[0013] With the protrusion inserted into the groove and pressed against a pair of chain teeth, the following structure is preferred to make the repair tool more stable:

[0014] In addition to the outer surface and the inner surface, the gripping portion also includes two surfaces facing a thickness direction orthogonal to the radial direction, and two surfaces facing a width direction orthogonal to both the radial direction and the thickness direction. Furthermore, a protrusion extends from one of the two surfaces of the gripping portion facing the thickness direction.

[0015] The protrusion can be formed at any position in the radial direction of the pinch part, but in order to prevent the protrusion from being touched during the opening and closing of the zipper, it is preferable to adopt the following structure: that is, the protrusion is located in the part of the pinch part that is slightly outside the middle in the radial direction.

[0016] When viewed from the thickness direction, the shape of the pinching part does not matter, but in order to facilitate the operation of the repair tool when the protrusion is inserted into the groove, it is preferable to adopt the following structure: that is, when the pinching part is viewed from the side with the side being the lower surface, the pinching part has a valley that is curved in an arc shape in a downward protruding manner.

[0017] The protrusion can be formed at any position in the width direction of the gripping part, but in order to facilitate the operation of the repair tool when the protrusion is inserted into the groove, it is preferable to adopt the following structure: that is, the protrusion is located in the center of the width direction of the gripping part.

[0018] The mounting section may also be a structure that cannot be removed from the zipper pull, but in order to facilitate operation with repair tools to turn a defective condition into a good condition, it is preferable to adopt a structure in which the mounting section can be installed and removed relative to the zipper pull.

[0019] An example of the specific structure of the mounting part is described below. That is, the mounting part is a rope, and the two ends of the rope are embedded in the holding part.

[0020] The zipper to which the repair method of the present invention is applicable is the same as the zipper to which the repair tool of the present invention is applicable. Furthermore, in the zipper repair method of the present invention, when both good and bad portions exist on opposite side edges of a pair of straps, the repair tool is used to insert a protrusion into the good portion and then pass the protrusion through the bad portion, thereby repairing the bad portion to the good condition.

[0021] Invention Effects

[0022] According to the present invention, by inserting the protrusion into the groove in a good condition and then passing the protrusion through the portion in a bad condition, it is possible to change the opposing side edges of a pair of belts from a bad condition to a good condition. Attached Figure Description

[0023] Figure 1 This is a top view of the zipper.

[0024] Figure 2 yes Figure 1 Sectional view along line II-II.

[0025] Figure 3 yes Figure 1 Sectional view along line III-III.

[0026] Figure 4 This is a cross-sectional view showing the zipper in the open state.

[0027] Figure 5This is a side view showing how to use a belt repair tool when correcting a defective part of the belt.

[0028] Figure 6 yes Figure 5 Sectional view along line VI-VI.

[0029] Figure 7 It is a 3D diagram with repair tools.

[0030] Figure 8 (A) to (E) represent the left view, top view, bottom view, DD line section view, and rear view of the main part with the repair tool.

[0031] Explanation of reference numerals in the attached figures

[0032] Detailed Implementation

[0033] like Figure 1 As shown, the zipper 1 to which this invention is applied includes: a pair of toothed chain straps 2; a zipper pull 3 for opening and closing the pair of toothed chain straps 2; and a pull tab 4 for operating the zipper pull 3. Figures 2-4 As shown, a pair of chain straps 2 includes: a pair of opposing straps 5; and a pair of chain teeth 6, which are respectively fixed along the opposing side edges of the pair of straps 5. In addition to the function of operating the zipper pull 3, the pull tab 4 shown in the figure also has the function of repairing the straps 5. When used for operating the zipper pull 3, it is called pull tab 4, and when used for repairing the straps 5, it is called strap repair tool 4.

[0034] The orientation will be determined below, with zipper 1 placed on a flat surface as a reference.

[0035] "Back-to-back direction" refers to the direction in which the zipper head 3 moves when the pair of toothed chain straps 2 are opened and closed. "Back-to-back direction" is also the direction in which the pull tab 4 rotates above the zipper head 3. "Forward direction" refers to the direction in which the zipper head 3 moves when the zipper 1 is closed. "Forward direction" in... Figure 1 "Center" refers to the upward direction. "Rear direction" refers to the direction in which the zipper pull 3 moves when zipper 1 is opened. "Rear direction" is... Figure 1 The middle direction is downward.

[0036] "Left-right direction" refers to the direction in which a pair of chain teeth 6 face each other, and is the direction of displacement of the pair of chain teeth 6 when engaged and disengaged. "Left-right direction" is also called "width direction." "Left direction" is related to... Figure 1 The left direction is consistent with the right direction. Figure 1 The right direction is consistent with the left-right direction. Additionally, the "left-right direction" is a direction orthogonal to the front-back direction.

[0037] The "up-down direction" is a direction orthogonal to the front-back and left-right directions. Figure 1 The direction perpendicular to the paper. "Up direction" is the direction perpendicular to the paper. Figure 1 The direction perpendicular to the paper's surface, pointing towards the front. "Downward direction" is... Figure 1 The direction orthogonal to the paper surface is towards the depth side.

[0038] "Radial direction" refers to the following direction: when the pull tab 4 reverses the direction in which the slider 3 moves, if the movement of the pull tab 4 is observed from the side, the pull tab 4 rotates in a semi-circular manner centered on the slider 3 in the front-back direction. The direction of the straight line connecting the center of this semi-circle and a point on the semi-circle is the "radial direction." Furthermore, the repair tool 4, even when not using the pull tab function, can rotate in the same manner as the pull tab, drawing a semi-circle in the front-back direction centered on the slider 3. Therefore, the "radial direction" is also used in the description of the repair tool 4.

[0039] The chain tooth row 6 includes a plurality of chain teeth arranged in a row in the front-to-back direction. In this embodiment, the chain tooth row 6 is composed of a continuous chain tooth formed by a plurality of chain teeth in the front-to-back direction.

[0040] A continuous chain tooth is a single synthetic resin filament bent in three dimensions (up / down, left / right, and front / back). Each filament is formed by continuously creating a unit chain tooth that engages with opposing filaments in the front-back direction. Furthermore, the chain teeth in a continuous chain tooth can engage and disengage with the chain teeth in another opposing continuous chain tooth. The filament is coil-shaped or serrated. Corresponding to the shape of the bend, the filament is also called a coil chain tooth or a serrated chain tooth. Incidentally, in this embodiment, the filament is a coil chain tooth. Figures 2-4 As shown, it is a shape in which the core rope 6a is wound around a core rope that extends in a straight line in the front-back direction.

[0041] The belt 5 is a long strip in the front-to-back direction, and its thickness is in the vertical direction. The opposing side edges of the belt 5 are parallel in the front-to-back direction. The opposing side edges of the belt 5 overlap with the upper surface of the chain teeth 6 and are fixed to the chain teeth 6 by the seam 6b. Furthermore, the term "side edge" refers to a portion that appears as a straight line when viewed from above, and the term "side edge portion" refers to the portion of the straight line portion that extends towards the seam 6b. Preferably, the belt 5 is waterproof. When waterproof, the belt 5 includes, for example, a belt body made of woven or braided fabric; and a waterproof sheet adhered to the upper surface of the belt body.

[0042] like Figure 1As shown, a through hole 3a for mounting the pull tab 4 is formed in the upper part of the zipper pull 3. The through hole 3a is a hole that penetrates the zipper pull 3 in a direction orthogonal to the vertical direction, specifically in the horizontal direction. In detail, the through hole 3a is formed by a main body 31 located below the through hole 3a, and pull tab mounting portions 32 located in front of, behind, and above the through hole 3a. That is, the zipper pull 3 includes a main body 31 and pull tab mounting portions 32. In addition, although the main body 31 is not shown, its internal space includes: a chain tooth passage that penetrates in the front-to-back direction, branches into two forks at the front, and remains as one piece at the rear; and a pair of belt grooves that communicate with the chain tooth passage and open in the horizontal direction. A pair of chain teeth 6 pass through the chain tooth passage, and the corresponding belts 5 pass through each belt groove.

[0043] When a pair of chain links 2 are closed, a pair of chain teeth 6 engage. In this case, as... Figure 1 As shown, a pair of straps 5 behind the pull head 3 can be configured as good condition 5a and bad condition 5b.

[0044] like Figure 2 As shown, in the ideal condition 5a, a pair of opposing side edges of the belt 5 are formed as a pair of raised portions 51, each of which bulges upwards and is in close contact in the width direction. A downwardly recessed groove 52 is formed between the pair of raised portions 51. The vertical distance between the upper surface of the pair of chain teeth 6 and the apex of the pair of raised portions 51 is defined as the height 51h of the raised portion 51. The width of the groove 52 gradually decreases towards the pair of chain teeth 6. The maximum width 52W of the groove 52 is the interval between the apex of the pair of raised portions 51.

[0045] like Figure 3 As shown, in defective condition 5b, the opposing side edges of a pair of straps 5 include: a pair of overlapping portions 54 that overlap in the vertical direction; and a pair of non-overlapping portions 55 that extend from each overlapping portion 54 toward the seam 6b of the corresponding strap 5. That is, the opposing side edges of the straps 5 include overlapping portions 54 and non-overlapping portions 55. The straps 5 at the non-overlapping portions 55 do not overlap.

[0046] exist Figure 4 In the example shown, when viewed from above, the opposing side edges of band 5 and the opposing side edges of chain teeth 6 are in a vertical relationship.

[0047] like Figure 1 , Figure 7 , Figure 8As shown, the repair tool 4 of the first embodiment includes: a mounting portion 41, which is detachably mounted to the zipper puller 3; a gripping portion 42, which is gripped during operation; and a protrusion 43, which partially protrudes from the gripping portion 42. When the repair tool 4 functions as a zipper puller, it has the rigidity to function as a zipper puller, so that the mounting portion 41 or the gripping portion 42 will not be damaged or will not detach from the gripping portion 42. The repair tool 4 is mounted to the zipper puller in a manner that allows it to rotate in the front-to-back direction and swing in the left-to-right direction.

[0048] When the repair tool 4 is operated on the pull head 3, it is in a pulled state. The pulled state is a straight line from the pull tab mounting part 32 outward in the radial direction when viewed from the side. When the pair of toothed chain straps 2 are opened, the gripping part 42 is positioned behind the mounting part 41. When the pair of toothed chain straps 2 are closed, the gripping part 42 is positioned in front of the mounting part 41.

[0049] The mounting part 41 is a rope. The rope is bent into a U-shape, and its two ends are embedded in the gripping part 42. Furthermore, the rope is capable of elastic deformation. When the repair tool 4 is mounted on the pull tab mounting part 32, the top end of the mounting part 41 (the end opposite to the gripping part 42) passes through the through hole 3a, allowing the gripping part 42 to pass through the inside of the top end of the mounting part 41. Thus, the mounting part 41 is mounted while wound around the pull tab mounting part 32. The mounting part 41 has the elasticity to twist while mounted on the pull tab mounting part 32. Therefore, when the repair tool 4 twists while extending radially about the pull tab mounting part 32, the gripping part 42 rotates corresponding to the angle of twist.

[0050] The gripping portion 42 is located radially outward relative to the mounting portion 41. The gripping portion 42 is made of, for example, resin or metal. The gripping portion 42 is elongated and plate-shaped. Because it is plate-shaped, the gripping portion 42 has a thickness direction. Because it is elongated, the gripping portion 42 has a length direction. This length direction coincides with the radial direction. Furthermore, when viewed from the thickness direction, the gripping portion 42 has a width direction in addition to the length direction. The thickness direction, length direction, and width direction are orthogonal to each other. The inner end of the gripping portion 42 in the radial direction and the mounting portion 41 work together to form an annulus, and a hole on the inner side of the annulus penetrates in the thickness direction.

[0051] To explain the gripping part 42, the thickness direction, length direction, and width direction are matched with the front-back direction, up-down direction, and left-right direction used in the description of zipper 1 as follows: The length direction of the gripping part 42 is aligned with the front-back direction. The thickness direction of the gripping part 42 is aligned with the up-down direction. The width direction of the gripping part 42 is aligned with the left-right direction (width direction) of zipper 1. As a result, the gripping part 42 includes an upper surface, a lower surface, a front surface, a rear surface, and a pair of side surfaces. The front surface of the gripping part 42 is the surface that engages with the mounting part 41. In addition, the lower surface of the gripping part 42 is the surface from which the protrusion 43 protrudes.

[0052] The gripping portion 42 extends rearward from the mounting portion 41. Viewed from the side, the gripping portion 42 is wavy. Specifically, the gripping portion 42 includes: a valley portion 45, which, viewed from the side, is arc-shaped and protrudes downward; a hill portion 46, which is adjacent to the valley portion 45 in front and rises upward; and a hill portion 47, which is adjacent to the valley portion 45 rearward and rises upward.

[0053] The upper surface of the valley 45 is concave downwards in an arc shape when viewed from the side. The lower surface of the valley 45 is convex downwards in an arc shape when viewed from the side.

[0054] Furthermore, the upper and lower surfaces of the front mountain 46, when viewed from the side, bulge upwards in an arc shape. The upper surface of the rear mountain 47, when viewed from the side, bulges upwards in an arc shape. The lower surface of the rear mountain 47 protrudes in an arc shape as it extends from the lower surface of the valley 45. That is, the lower surfaces of the valley 45 and the rear mountain 47 work together to form an arc shape, curving downwards in an arc shape.

[0055] The upper and lower surfaces of the gripping portion 42 are wavy when viewed from the side, rather than flat. Furthermore, the lower surface of the gripping portion 42, when viewed from the front-rear direction, is curved in an arc shape, bulging downwards from both ends in the width direction towards the center. The corner between the upper surface of the gripping portion 42 and a pair of side surfaces is curved in an arc shape when viewed from the front-rear direction. The corner between the lower surface of the gripping portion 42 and a pair of side surfaces is also curved in an arc shape when viewed from the front-rear direction.

[0056] The pinching portion 42 is symmetrical from left to right. Viewed from above, the pinching portion 42 includes a front, a pair of side sides, and a rear. The front and rear sides are parallel to the left-right direction. The width of the rear side is smaller than the width of the front side. The pair of side sides are parallel to the front-back direction in the front part of the hill 46; their width increases towards the rear in the front part of the valley 45, and decreases towards the rear in the rear part of the valley 45 and in the rear part of the hill 47. The maximum width 42W of the pinching portion 42 is greater than the maximum width 43W of the protrusion 43.

[0057] The protrusion 43 protrudes from the lower surface of the gripping portion 42 as described. Furthermore, the protrusion 43 protrudes from a position slightly rearward than the center of the gripping portion 42 (the outer portion in the radial direction). More specifically, the protrusion 43 protrudes from the rear end of the rear-side hill portion 47. In other words, assuming the gripping portion 42 is divided into three equal parts in the radial direction, the protrusion 43 protrudes from the outer portion in the radial direction of the gripping portion 42. Additionally, the protrusion 43 is located at the center of the gripping portion 42 in the width direction. The protrusion 43 can be inserted into the groove portion 52. The maximum width dimension 43W of the protrusion 43 is smaller than the maximum width dimension 52W of the groove portion 52.

[0058] The protrusion 43 is triangular when viewed from the side. The protrusion 43 includes: a first side that extends along the lower surface of the gripping portion 42 when viewed from the side, and is inclined upwards relative to the front-rear direction as it moves rearward; a second side that extends from the front end of the first side and forms an acute angle with the first side; and a third side that extends from the rear end of the first side and forms an acute angle with the first side. The corner where the second and third sides intersect is a bulging arc shape. Specifically, the second and third sides are straight except for the corner. If the straight portions of the second and third sides are extended to intersect, an intersection point is formed. The corner is an arc shape bulging towards the intersection point.

[0059] In the repair method of the first embodiment, the repair tool 4 of the first embodiment described above is used as follows. Figure 1 As shown, when the zipper head 3 is moved forward to close the pair of toothed chain straps 2, the opposing side edges of the pair of straps 5 towards the rear of the zipper head 3 are sequentially formed into a good state 5a, a bad state 5b, and a good state 5a. In this case, the strap repair tool 4 is first removed from the zipper head 3. Then, as... Figure 5 , Figure 6As shown, while pressing a finger against the upper surfaces of the mountain portion 46 and valley portion 45 on the front side of the pinching portion 42, the protrusion 43 is inserted into the groove portion 52 in the good state 5a, thereby pressing the protrusion 43 against the upper surfaces of the pair of chain teeth 6. In this state, when viewed from the side, the pinching portion 42 is tilted upward relative to the front-rear direction as it moves forward, moving upward away from the pair of protrusions 51. Alternatively, the lower surface of the pinching portion 42 may be in contact with the pair of protrusions 51.

[0060] Then, while maintaining the state of pressing the protrusion 43 against the upper surface of the pair of chain teeth 6, the repair tool 4 is moved to pass through the overlapping portion 54 of the defective state 5b. Thus, during the passage of the protrusion 43, the pair of overlapping portions 54 are separated by the protrusion 43 in the left-right direction, and after the protrusion 43 passes through, a pair of raised portions 51 are formed, thereby achieving a good state 5a. Furthermore, if the defective state 5b cannot be transformed into a good state 5a through a single movement operation, the movement operation in the front-back direction is repeated several times.

[0061] In the band repair tool 4 of the first embodiment, by inserting the protrusion 43 into the groove 52 of the good state 5a and then allowing it to pass through the portion of the bad state 5b, the opposing side edges of a pair of bands 5 can be changed from the bad state 5b to the good state 5a. Furthermore, since the band repair tool 4 of the first embodiment has rigidity that functions as a pull tab, it can also be used as a pull tab.

[0062] In the first embodiment of the band repair tool 4, the protrusion 43 is formed on a portion other than the rear surface (outer surface facing outward in the radial direction) and the front surface (inner surface facing inward in the radial direction) of the pinching portion 42, and more specifically, on the lower surface of the pinching portion 42. In the first embodiment of the band repair tool 4, since the protrusion 43 is formed on the lower surface (thickness direction side) of the pinching portion 42, the protrusion 43 can be inserted into the groove 52 and pressed against the pair of chain teeth 6 while pressing a finger against the upper surface (opposite to the thickness direction side) of the pinching portion 42. As a result, since the position of the finger pressing against the pinching portion 42 is close to the pair of chain teeth 6, the band repair tool 4 is stable and easy to operate. Incidentally, in the case of a repair tool with a protrusion 43 formed on the rear surface of the gripping part 42, the radial direction of the repair tool is roughly parallel to the vertical direction. When the protrusion is inserted into the groove 52 while the gripping part is being held, the repair tool becomes unstable because the position of the fingers is far away from the pair of chain teeth 6.

[0063] In the repair tool 4 of the first embodiment, since the protrusion 43 is formed on the lower surface of the gripping portion 42 and is located further back than the center of the gripping portion 42 (the outer part in the radial direction), when the inner part in the radial direction of the gripping portion 42 is gripped to open or close the zipper 1, the protrusion 43 is difficult to touch with the fingers, and the tactile feel when gripping the gripping portion 42 is good. Incidentally, it is speculated that the middle part in the radial direction of the gripping portion 42 is the easiest to touch with the fingers.

[0064] In the repair tool 4 of the first embodiment, since the pinching part 42 has a valley 45, it is easy to press a finger against the arc-shaped concave upper surface of the valley 45, and the repair tool 4 can be easily operated when the pinching part 42 is inserted into the groove 52. Moreover, in the repair tool 4 of the first embodiment, since there are hills 46 and hills 47 at the front and rear of the valley 45, the pressing state of the finger is stable.

[0065] In the repair tool 4 of the first embodiment, since the protrusion 43 is located in the center of the gripping part 42 in the width direction, when the protrusion 43 is pressed into the groove 52, force can be applied not only from directly above the protrusion 43, but also from the left and right sides above the protrusion 43, so that the protrusion 43 can be easily stabilized in the groove 52, and the repair tool 4 can be easily operated.

[0066] In the repair tool 4 of the first embodiment, since the mounting part 41 can be installed and removed, it is easier to operate when changing from the defective state 5b to the good state 5a if it is removed from the pull head 3.

[0067] In the repair tool 4 of the first embodiment, since the mounting part 41 is a rope and both ends of the rope are embedded in the gripping part 42, the mounting part 41 can be easily attached to and detached from the pull head 3.

[0068] When the protrusion 43 is inserted into the groove 52 and pressed against a pair of chain teeth 6, since the pinching part 42 is located above the pair of raised parts 51, the opposing side edges of the pair of belts 5 can be maintained in good condition 5a, and the defective part 5b can be turned into good condition 5a by moving the belt repair tool 4.

[0069] This invention is not limited to the embodiments described above and can be appropriately modified without departing from its essence. For example, the gripping part 42 is elongated in the above embodiment, but is not limited to this in this invention and may be other shapes, such as a disc. Furthermore, the gripping part 42 is wavy when viewed from the side in the above embodiment, but is not limited to this in this invention and may be other shapes, such as a flat plate when viewed from the side. Additionally, the repair tool 4 has rigidity in the above embodiment, functioning as a pull tab, but is not limited to this in this invention and may only have the function of repairing the strap. In this case, the zipper can be configured such that a dedicated pull tab is installed on the zipper head, and the repair tool 4 is also installed on the zipper head along with the dedicated pull tab, making the repair tool 4 a component of the zipper. However, it can also be configured such that the repair tool 4 is not a component of the zipper, but rather a separate component independent of the zipper, which can be installed on the zipper head later.

Claims

1. A tape repair tool for a slide fastener, characterized by, The zipper (1) includes: A pair of chain teeth (6) extend in the front-back direction and face each other in the width direction; A pair of straps (5), each fixed to the upper surface of a pair of chain teeth (6) and extending in the front-rear direction, exist above the meshing portion of the pair of chain teeth (6) in a state of good condition (5a) and a state of bad condition (5b); and The pull head (3) enables a pair of chain teeth (6) to engage and disengage. In the good condition (5a), the opposing side edges of the pair of bands (5) are formed as a pair of raised portions (51) that bulge upwards and are in close contact in the width direction, and a groove (52) that is recessed downwards is formed between the pair of raised portions (51). In the defective state (5b), the opposing side edges of the pair of bands (5) overlap in the vertical direction. The repair tool (4) is rotatably mounted on the zipper head (3) in the front-to-back direction while extending radially around the zipper head (3) when viewed from the side. The repair tool (4) includes: a mounting part (41) which can be mounted on the pull head (3); a pinching part (42) which extends outward from the mounting part (41) in the radial direction; and a protrusion (43) which partially protrudes from the pinching part (42) and is capable of repairing the defective state (5b) into the good state (5a). The protrusion (43) can be inserted into the groove (52).

2. The zipper repair tool according to claim 1, characterized in that: The repair tool (4) has rigidity and functions as a puller.

3. The zipper repair tool according to claim 1 or 2, characterized in that: The protrusion (43) is formed on the part of the pinching part (42) other than the outer surface facing outward in the radial direction and the inner surface facing inward in the radial direction.

4. The zipper repair tool according to claim 3, characterized in that: In addition to the outer surface and the inner surface, the pinching part (42) also includes two surfaces facing the thickness direction orthogonal to the radial direction, and two surfaces facing the width direction orthogonal to both the radial direction and the thickness direction. The protrusion (43) protrudes from one of the two surfaces of the pinching part (42) facing the thickness direction.

5. The zipper repair tool according to claim 4, characterized in that: The protrusion (43) is located on the outer side of the pinching part (42) in the radial direction.

6. The zipper repair tool according to claim 5, characterized in that: When the pinching part (42) is viewed from the side with the lower surface as the surface, the pinching part (42) has a valley (45) that is curved in an arc shape and protrudes downward.

7. The zipper repair tool according to claim 6, characterized in that: The protrusion (43) is located at the center of the gripping part (42) in the width direction.

8. The zipper repair tool according to claim 1 or 2, characterized in that: The mounting part (41) can be mounted and dismounted relative to the pull head (3).

9. The zipper repair tool according to claim 8, characterized in that: The mounting part (41) is a rope, and the two ends of the rope are embedded in the pinching part (42).

10. A method of repairing a tape of a zipper, characterized by, The zipper (1) includes: A pair of chain teeth (6) extend in the front-back direction and face each other in the width direction; A pair of straps (5), each fixed to the upper surface of a pair of chain teeth (6) and extending in the front-rear direction, exist above the meshing portion of the pair of chain teeth (6) in a state of good condition (5a) and a state of bad condition (5b); and The pull head (3) enables a pair of chain teeth (6) to engage and disengage. In the good condition (5a), the opposing side edges of the pair of bands (5) are formed as a pair of raised portions (51) that bulge upwards and are in close contact in the width direction, and a groove (52) that is recessed downwards is formed between the pair of raised portions (51). In the defective state (5b), the opposing side edges of the pair of bands (5) overlap in the vertical direction. In the method for repairing the zipper (1), when both the good condition and the bad condition exist on the opposing side edges of a pair of the tapes (5), the zipper tape repair tool (4) according to any one of claims 1 to 9 is used. After inserting the protrusion (43) into the groove (52) of the good state (5a), the protrusion (43) passes through the part of the bad state (5b), thereby repairing the part of the bad state to the good state.

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