This application claims the priority benefit of China application serial no. 202311821982.6, filed on Dec. 26, 2023. The entirety of the above-mentioned patent application is hereby incorporated by reference herein and made a part of this specification.
The disclosure relates to the technology of the fastener field, and in particular relates to a tab pull for a fastener.
A conventional fastener usually includes a fastener chain comprising a pair of fastener stringers, each fastener stringer consisting of a strip of fastener tape and multiple element columns arranged thereon. The fastener also includes a slider installed on a fastener stringer to open or close the element columns by sliding. In addition, a tab pull may also be disposed on the slider according to requirements.
In the prior art, a slider for a fastener usually includes a slider connection portion for installation on a slider, and a gripping portion for the user to grasp with fingers to operate the slider. The tab pull may employ a cord as the slider connection portion. A gripping portion formed of resin material may be injection molded at the extreme end of the cord, thereby the cord may be passed through the tab pull installation portion of the slider to install the tab pull on the slider, and the slider may be driven to slide through the gripping portion at the extreme end of the cord.
However, such a tab pull needs to be manufactured using different materials (i.e., the cord used as the slider connection portion, the resin material used to form the gripping portion, etc.), resulting in an increase in required processes and manufacturing costs. In addition, if the structure of the tab pull is improved in order to reduce the manufacturing processes, the structural strength and operability of the improved tab pull need to be taken into consideration.
A tab pull for a fastener, which may reduce the manufacturing processes and reduce manufacturing costs, and has sufficient structural strength and good operability, is provided in the disclosure.
A tab pull for a fastener is provided in the disclosure, the tab pull is adapted to be installed on the slider, and includes: a gripping portion, which is configured in a sheet shape; a slider connection portion, which extends outward from a front end of the gripping portion and is adapted to pass through a tab pull installation portion of the slider; an engaged portion, which is located on one of side surfaces of the gripping portion in a width direction; and an engagement portion, which is extending outward from an end portion of the slider connection portion. The engagement portion is fitted into the engaged portion along the side surface of the gripping portion, so that the slider connection portion is closed to form an annular shape.
In an embodiment of the disclosure, the engaged portion includes an extending recessed portion extending along the side surface of the gripping portion and an engagement recessed portion located at an extreme end of the extending recessed portion. The engagement portion includes an extension rod portion extending from the end portion of the slider connection portion along the side surface of the gripping portion, and an engagement protrusion located at an extreme end of the extension rod portion. The extension rod portion is fitted into the extending recessed portion along the side surface of the gripping portion, and the engagement protrusion is fitted into the engagement recessed portion, so that the engagement portion is fitted into the engaged portion.
In an embodiment of the disclosure, the extending recessed portion extends along the side surface of the gripping portion from the front end of the gripping portion to a rear end of the gripping portion, and the engagement recessed portion is located at the rear end of the gripping portion.
In an embodiment of the disclosure, an extending direction of the extending recessed portion intersects an extending direction of the engagement recessed portion, and an extending direction of the extension rod portion intersects an extending direction of the engagement protrusion.
In an embodiment of the disclosure, the engaged portion further includes a rotating recessed portion located at an extreme end of the engagement recessed portion. The engagement portion further includes a bent protruding portion located at an extreme end of the engagement protrusion. An extending direction of the rotating recessed portion intersects the extending direction of the engagement recessed portion so that an extreme end of the engaged portion forms a hook shape. An extending direction of the bent protruding portion intersects the extending direction of the engagement protrusion so that an extreme end of the engagement portion forms a hook shape. The bent protruding portion is fitted into the rotating recessed portion, so that the engagement portion is fitted into the engaged portion.
In an embodiment of the disclosure, the slider connection portion extends from a first side in the width direction to a second side opposite to the first side at the front end of the gripping portion, and the engaged portion is located on a side surface of the gripping portion corresponding to the second side.
In an embodiment of the disclosure, a recessed portion is formed on an outer surface of the gripping portion close to the first side, and when viewed from the front of the gripping portion, the recessed portion does not overlap with a region corresponding to the engaged portion on the gripping portion.
In an embodiment of the disclosure, the gripping portion, the slider connection portion, and the engagement portion are made of soft material.
In an embodiment of the disclosure, shape and dimensions of the engagement portion correspond to shape and dimensions of the engaged portion, so that the engagement portion fits into the engaged portion to form a tight fit.
In an embodiment of the disclosure, the gripping portion, the slider connection portion, the engagement portion, and the engaged portion are different portions of a single component formed integrally.
Based on the above, in the tab pull of a fastener of the disclosure, the slider connection portion extends outward from the front end of the gripping portion, the engaged portion is located on one side surface of the gripping portion in the width direction, and the engagement portion extends outward from the end portion of the slider connection portion. The slider connection portion is adapted to pass through the tab pull installation portion of the slider, and the engagement portion is fitted into the engaged portion along the side surface of the gripping portion, so that the slider connection portion is closed to form an annular shape. In this way, the tab pull may be made of the same material, and may be installed and secured by engaging the structures thereon (i.e., the engaged portion and the engagement portion), thereby the tab pull may be easily installed on the slider by means of opening or closing. In particular, the engagement portion is fitted into the engaged portion along the side surface of the gripping portion, so that the engagement portion and the engaged portion may achieve a good connection, thereby the tab pull in the closed state is less likely to become loose or detached during use. Accordingly, the tab pull for the fastener of the disclosure may reduce the manufacturing processes and reduce manufacturing costs, and has sufficient structural strength and good operability.
In order to make the above-mentioned features and advantages of the disclosure comprehensible, embodiments accompanied with drawings are described in detail below.
References of the exemplary embodiments of the disclosure are to be made in detail. Examples of the exemplary embodiments are illustrated in the drawings.
Referring to
Specifically, in this embodiment, the gripping portion 110 is, for example, a substantially elongated strip-shaped structure extending in the front-rear direction (i.e., the length direction L). However, the gripping portion 110 may also be arranged into a desired shape according to requirements, and its dimensions (length, width, thickness) may be adjusted according to requirements, and the disclosure is not limited thereto. Correspondingly, the slider connection portion 120 is a thin and elongated strip-shaped structure extending outward from the front end E1 of the gripping portion 110, thereby passing through the installation hole 52a on the tab pull installation portion 52 of the slider 50. Preferably, the dimension of the slider connection portion 120 in the width direction W is less than the dimension of the gripping portion 110 in the width direction W. That is, in comparison to the sheet shaped gripping portion 110, the slider connection portion 120 is configured in an elongated strip shape. In this way, the slider connection portion 120 may be bent without requiring excessive length, and easily form a ring shape by passing through the tab pull installation portion 52 of the slider 50 and looping back to the side surface 112 of the gripping portion 110. However, as long as the slider connection portion 120 may be installed by passing through the tab pull installation portion 52, its dimensions (length, width, thickness) may be adjusted according to requirements, and the disclosure is not limited thereto.
Furthermore, in this embodiment, the engaged portion 130 and the engagement portion 140 are respectively arranged at the gripping portion 110 and the slider connection portion 120. The engaged portion 130 is, for example, a recessed structure formed on the side surface 112 of the gripping portion 110, and the engagement portion 140 is, for example, a protruding structure formed on the end portion 120a of the slider connection portion 120 opposite to the gripping portion 110. That is, one end of the slider connection portion 120 is connected to the front end E1 of the gripping portion 110, and the other end of the slider connection portion 120 is formed with an engagement portion 140. Thereby the slider connection portion 120 may be connected to the side surface 112 of the gripping portion 110 through the engagement of the engagement portion 140 and the engaged portion 130, so that the slider connection portion 120 may be closed to form an annular shape. In this way, when the engagement portion 140 moves into the engaged portion 130 in a direction approaching the gripping portion 110 (as shown in
It may be seen from this that when the tab pull 100 is in the open state, as shown in
As an example, in this embodiment, as shown in
Through the above arrangement, in this embodiment, the extending recessed portion 132 of the engaged portion 130 is formed on the side surface 112 of the gripping portion 110 across the front end E1 and the rear end E2 in the front-rear direction (i.e., the length direction L) and further opens outwardly at the front end E1, the side surface 112, and the rear end E2. Thereby the extension rod portion 142 of the engagement portion 140 crosses the front end E1 and the rear end E2 in the front-rear direction (i.e., the length direction L) and is fitted into the engaged portion 130 formed on the side surface 112 of the gripping portion 110 in the extending recessed portion 132, thereby increasing the contact area between the engagement portion 140 and the engaged portion 130 that are fitted to each other, so that the structural strength of the tab pull 100 is improved. In particular, when the engagement portion 140 moves into the engaged portion 130 in a direction approaching the side surface 112, the extension rod portion 142 may enter the extending recessed portion 132 from the opening of the front end E1 of the extending recessed portion 132, and the engagement protrusion 144 may enter the engagement recessed portion 134 from the opening of the rear end E2 of the extending recessed portion 132 (i.e., the extreme end of the extending recessed portion 132), thereby the engagement portion 140 may be easily fitted to the engaged portion 130. Furthermore, the engagement protrusion 144 of the engagement portion 140 is fitted into the engagement recessed portion 134 of the engaged portion 130 along the width direction W, thereby the engagement protrusion 144 may interfere with the inner wall surface of the engagement recessed portion 134 in the front-rear direction (i.e., the length direction L). Thereby, when the tab pull 100 is installed on the tab pull installation portion 52 of the slider 50, even if a user grasps the gripping portion 110 of the tab pull 100 with fingers and operates the tab pull 100 in the front-rear direction (i.e., the length direction L), the engagement portion 140 is not easily detached from the engaged portion 130. Accordingly, the tab pull 100 in the closed state is less likely to become loose or detached during use, and has sufficient structural strength and good operability.
Furthermore, in this embodiment, the engaged portion 130 further includes a rotating recessed portion 136 located at the extreme end of the engagement recessed portion 134, and the engagement portion 140 further includes a bent protruding portion 146 located at the extreme end of the engagement protrusion 144. The extension direction of the rotating recessed portion 136 (substantially corresponding to the length direction L) intersects the extending direction of the engagement recessed portion 134 (substantially corresponding to the width direction W) so that the extreme end of the engaged portion 130 forms a hook shape. Correspondingly, the extending direction of the bent protruding portion 146 intersects the extending direction of the engagement protrusion 144 so that the end of the engagement portion 140 forms a hook shape. In this way, when the extension rod portion 142 is fitted into the extending recessed portion 132 along the side surface 112 of the gripping portion 110 and the engagement protrusion 144 is fitted into the engagement recessed portion 134, the bent protruding portion 146 is fitted into the rotating recessed portion 136 so that the engagement portion 140 is fitted into the engaged portion 130. Preferably, the rotating recessed portion 136 rotates and extends from the rear end E2 of the gripping portion 110 toward the front end E1, and the bent protruding portion 146 bends and extends from the extreme end of the engagement protrusion 144 toward the front end E1. In this way, when the extension rod portion 142 moves in a direction approaching the side surface 112 of the gripping portion 110, the bent protruding portion 146 is inserted into the rotating recessed portion 136 from the rear end E2 toward the front end E1 through the protruding wall 138 between the extending recessed portion 132 and the rotating recessed portion 136 (i.e., the inner wall of the engagement recessed portion 134), and the engagement protrusion 144 and the extension rod portion 142 are fitted into the engagement recessed portion 134 and the extending recessed portion 132 in sequence, so that the engagement portion 140 is fitted into the engaged portion 130.
Through the above arrangement, in this embodiment, the bent protruding portion 146 of the engagement portion 140 is further fitted into the rotating recessed portion 136 formed in the engaged portion 130 of the gripping portion 110 along the front-rear direction (i.e., the length direction L), thereby increasing the contact area between the engagement portion 140 and the engaged portion 130 that are fitted to each other and creating interference, so that the structural strength of the tab pull 100 is improved. Furthermore, when the tab pull 100 is in a closed state, the engagement portion 140 forms a barb-like shape and may hook the protruding wall 138 (i.e., the inner wall of the engagement recessed portion 134) between the extending recessed portion 132 and the rotating recessed portion 136 with the notch (i.e., the inner wall of the engagement protrusion 144) between the extension rod portion 142 and the bent protruding portion 146. Thereby, when the tab pull 100 is installed on the tab pull installation portion 52 of the slider 50, even if a user grasps the gripping portion 110 of the tab pull 100 with fingers and operates the tab pull 100 in the front-rear direction (i.e., the length direction L), the engagement portion 140 is not easily detached from the engaged portion 130. Accordingly, the tab pull 100 in the closed state is less likely to become loose or detached during use, and has sufficient structural strength and good operability. However, as long as the engagement portion 140 may be fitted into the engaged portion 130 along the side surface 112 of the gripping portion 110, the disclosure does not limit the specific structures of the engaged portion 130 and the engagement portion 140, which may be adjusted according to requirements.
In addition, in this embodiment, as shown in
Furthermore, in this embodiment, as shown in
In addition, as an example, when soft materials such as resin materials are used to manufacture the gripping portion 110, the slider connection portion 120, the engagement portion 140, etc., as shown in
However, in the modified example of
To sum up, in the tab pull of a fastener of the disclosure, the slider connection portion extends outward from the front end of the gripping portion, the engaged portion is located on one side surface of the gripping portion in the width direction, and the engagement portion extends outward from the end portion of the slider connection portion. The slider connection portion is adapted to pass through the tab pull installation portion of the slider, and the engagement portion is fitted into the engaged portion along the side surface of the gripping portion, so that the slider connection portion is closed to form an annular shape. In this way, the tab pull may be made of the same material, and may be installed and secured by engaging the structures thereon (i.e., the engaged portion and the engagement portion), thereby the tab pull may be easily installed on the slider by means of opening or closing. In particular, the engagement portion is fitted into the engaged portion along the side surface of the gripping portion, so that the engagement portion and the engaged portion may achieve a good connection, thereby the tab pull in the closed state is less likely to become loose or detached during use. Preferably, the extending recessed portion of the engaged portion extends from the front end of the gripping portion to the rear end of the gripping portion along the side surface of the gripping portion, and the engagement recessed portion of the engaged portion is located at the rear end of the extending recessed portion, thereby increasing the contact area between the engagement portion and the engaged portion that are fitted to each, so that the structural strength of the tab pull is improved. Accordingly, the tab pull for the fastener of the disclosure may reduce the manufacturing processes and reduce manufacturing costs, and has sufficient structural strength and good operability.
Finally, it should be noted that the foregoing embodiments are only used to illustrate the technical solutions of the disclosure, but not to limit the disclosure; although the disclosure has been described in detail with reference to the foregoing embodiments, persons of ordinary skill in the art should understand that the technical solutions described in the foregoing embodiments may still be modified, or parts or all of the technical features thereof may be equivalently replaced; however, these modifications or substitutions do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the disclosure.
Number | Date | Country | Kind |
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202311821982.6 | Dec 2023 | CN | national |