Self-opening hair clip

The self-opening hair clip with a helical clutch shaft and elastic telescopic torsion element automatically opens after clamping, addressing the inconvenience of manual release in traditional clips, providing enhanced user convenience.

FR3158420A3Active Publication Date: 2025-07-25FEMININE CO LTD
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Patent Information

Application Number
FR2025000349
Authority / Receiving Office
FR · FR
Patent Type
Utility models
Current Assignee / Owner
Priority Date
2024-01-18
Filing Date
2025-01-14
Publication Date
2025-07-25
Estimated Expiration
2035-01-14

AI Technical Summary

Technical Problem

Existing hair clips do not automatically open after clamping, requiring manual effort to release the grip, which can be inconvenient and inefficient.

Method used

A self-opening hair clip design featuring a helical clutch shaft with an elastic telescopic torsion element that provides a spring force for automatic opening, allowing the clip bodies to rotate relative to each other and disengage when pressed simultaneously.

Benefits of technology

Enables convenient and efficient release of the hair clip grip without manual intervention, enhancing user experience by automating the opening process.

✦ Generated by Eureka AI based on patent content.

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Abstract

An automatic opening hair clip, comprising a first clip body (1), a second clip body (2) and a helical clutch shaft (3); this shaft is pivotally mounted between the bodies (2, 3), and is capable of providing the spring force necessary for the automatic opening thereof; the shaft (3) comprises a first shaft body, a second shaft body, a cover piece (33), an elastic telescopic torsion element, and a shaft (35); when the user simultaneously presses the clip bodies (2, 3), the shaft (3) is capable of performing a multi-step closing and clamping operation, and when the user simultaneously presses both ends of the shaft (3), the torsion element is capable of automatically causing the opening of these clip bodies (2, 3). Figure 2
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Description

a first gripper body (1), a second gripper body (2) and a helical clutch shaft (3); wherein the first clamp body (1) and the second clamp body (2) are arranged to correspond to each other and are capable of rotating relative to each other to jointly clamp an object; the helical clutch shaft (3), pivotally arranged between the first gripper body (1) and the second gripper body (2), is adapted to provide a spring force for the automatic opening of the first and second gripper bodies; the helical clutch shaft comprises a first shaft body (31), a second shaft body (32), a cover piece (33), an elastic telescopic torsion member (34) and a shaft (35); one side of the first shaft body (31) is connected to the first gripper body (1), and along the axis direction, is sequentially provided with a first stop piece (311), a first helical rack (312), a guide part (313), with a first wing part (314) at the connection with the first gripper body; one side of the second shaft body (32) is connected to the second gripper body (2) and, along the axis direction, is sequentially provided with a second stop piece (321), a spacer piece (322), a second helical rack (323), a sleeve (324), with a second wing portion (325) at the connection with the second gripper body; the second stop piece (321), located outside the first stop piece (311), is capable of serving as a limit for the first stop piece; the spacer piece (322) is capable of receiving the first stop piece (311) and the first helical rack (312), allowing them to move along the axis, according to the latter; a first toothed portion (3121) of the first helical rack (312) is placed on the side of the first shaft body (31) away from the first wing portion (314); [Claim 2] [Claim 3] a second toothed portion (3231) of the second helical rack (323) is positioned on the side of the second shaft body (32) away from the second wing portion (325); the first and second toothed parts (3121, 3231) are positioned to correspond to each other and are capable of meshing with each other; the cover piece (33), positioned at the free end of the guide part (313), corresponds to the sleeve (324) and is adapted to fit on the sleeve (324), one side corresponding to the free end of the first wing part (314) being provided with a third wing part (331) which is adapted to be positioned on the first wing part (334); the elastic telescopic torsion element (34) is located between the sleeve (324) and the cover piece (33), the two ends being respectively supported against the sleeve and the cover piece, to use the spring force so as to provide the meshing force between the first helical rack (312) and the second helical rack (323), allowing the helical clutch shaft (3) to disengage during pressing;the shaft (35) passes through the first stop piece (311), the second stop piece (321), passes beyond the spacer piece (322), the second helical rack (323), and is positioned at the upper end of the sleeve (324). An automatic hair clip according to claim 1, characterized in that the sleeve (324) has an inner bottom surface corresponding to the elastic telescopic torsion element (34), is further provided with a first connecting groove (3241) for positioning and connecting the end of the elastic telescopic torsion element (34); the inner bottom surface of the sleeve (324) corresponding to the elastic telescopic torsion element (34) is also provided with a second connecting groove (332) for positioning and connecting the corresponding end of the elastic telescopic torsion element (34). ; An automatic hair clip according to claim 2, characterized in that the connection between the first clip body (1) and the first shaft body (31) includes a first slot (11) for engagement with and positioning of the first wing portion, and the first clamp body, at the location corresponding to the second stop piece, is further equipped with a first pressure piece; the connection between the second clamp body (2) and the second shaft body (32) includes a second slot (21) for engagement with and positioning the second wing portion (325), and the second clamp body (1) at the location corresponding to the second stop piece (321) is further equipped with a first pressure piece (12); the connection between the second clamp body (2) and the second shaft body (32) has a second slot (21) for engagement with and positioning the second wing portion (325), and the second clamp body (2), at the location corresponding to the cover piece (33), further has a second pressure piece (22).[Claim 4] A self-opening hair clip according to claim 3, characterized in that at the ends of the first slot (11) remote from the first shaft body (31), a first positioning block (13) is provided for engaging and positioning the first wing portion (314); at the ends of the second slot (21) remote from the second shaft body (32), a second positioning block (23) is provided for engaging and positioning the second wing portion (325). [Claim 5] A self-opening hair clip according to claim 4, characterized in that the elastic telescopic torsion element (34), at its engagement portions with the first connecting groove (3241) and the second connecting groove (334), has a torsion section (341), which is capable of rotating synchronously with the respective first connecting groove (3241) and second connecting groove (332).[Claim 6] A self-opening hair clip according to claim 5, characterized in that at the engagement between the first wing portion (314) and the third wing portion (331), a first engagement portion (315) is recessed, and the third wing portion (331) corresponding to the first engagement portion (315) is provided with a second engagement portion (333) for engaging and positioning the first engagement portion (315).

Claims

[Claim 7] Self-opening hair clip according to claim 6, characterized in that the first engagement portion (315) on one side corresponding to the second engagement portion (333) has at least one positioning hole (316), and the second engagement portion (333) corresponding to the positioning hole (316) is provided with a positioning pin (334) capable of being engaged in the positioning hole (316). \|S 332 VW5A \ / / 100