Magnetic-mechanical closure device

Patent metadata

Field	Value
Publication number	US-12467490-B2
Application number	US-202118271974-A
Country	US
Kind code	B2
Filing date	Oct 26, 2021
Priority date	Jan 13, 2021
Publication date	Nov 11, 2025
Grant date	Nov 11, 2025

Abstract

A closure device includes a first closure part, which includes a base element and at least one closure element movably arranged on the base element with a form-fitting portion arranged thereon, and a second closure part, which includes an engagement element with an engagement portion formed thereon. In an open position of the closure device the first closure part and the second closure part are separated from each other and can be attached to each other along a closing direction for closing the closure device. The form-fitting portion of the at least one closure element can be brought into engagement with the engagement portion of the engagement element in an engagement direction substantially transversely to the closing direction. On the at least one closure element of the first closure part a first magnetic element is arranged and on the engagement element of the second closure part a second magnetic element is arranged.

First claim

The invention claimed is:

1 . A closure device, comprising
a first closure part, which includes a base element and at least one closure element movable relative to the base element with a form-fitting portion arranged thereon, and a second closure part, which includes an engagement element with an engagement portion formed thereon, wherein in an open position of the closure device the first closure part and the second closure part are separated from each other and can be attached to each other along a closing direction for closing the closure device, and wherein the form-fitting portion of the at least one closure element can be brought into engagement with the engagement portion of the engagement element in an engagement direction substantially transversely to the closing direction, so that in a closed position the first closure part and the second closure part are held at each other along the closing direction, further comprising a first magnetic element arranged on the at least one closure element of the first closure part and a second magnetic element arranged on the engagement element of the second closure part, wherein in the open position the at least one closure element of the first closure part takes a first position relative to the base element, and on closing the first magnetic element and the second magnetic element cooperate in a magnetically attracting way so that the at least one closure element is moved with the form-fitting portion in the engagement direction out of the first position relative to the base element in order to bring the form-fitting portion into engagement with the engagement portion of the engagement element, wherein the first closure part includes a locking element which in the open position acts on the at least one closure element with a locking portion in order to hold the at least one closure element in the first position.

2 . The closure device according to claim 1 , wherein a force is applied onto the at least one closure element of the first closure part in the open position such that the at least one closure element takes the first position relative to the base element.

3 . The closure device according to claim 1 , wherein in the open position a force is applied onto the at least one closure element of the first closure part by magnetic action of the first magnetic element.

4 . The closure device according to claim 1 , wherein the locking element includes a triggering portion which is configured to cooperate with the second closure part on closing, in order to shift the locking element for releasing the at least one closure element.

5 . The closure device according to claim 1 , wherein the at least one closure element can be moved relative to the base element against the engagement direction in order to eliminate the operative connection with the engagement portion.

6 . The closure device according to claim 1 , wherein the at least one closure element includes a claw portion that forms a form-fitting portion for positively engaging behind the engagement portion.

7 . The closure device according to claim 6 , wherein at least one of
the form-fitting portion extends along a circular arc around the closing direction and the form-fitting portion is elastically connected to the associated, first magnetic element.

8 . The closure device according to claim 1 , wherein the base element is realized by a housing element.

9 . The closure device according to claim 1 , wherein the first closure part includes two closure elements and two first magnetic elements each arranged on one of the closure elements.

10 . The closure device according to claim 9 , wherein the closure elements are forcibly coupled to each other via a coupling device for joint movement.

11 . The closure device according to claim 10 , wherein the closure elements are forcibly coupled to each other mechanically.

12 . The closure device according to claim 10 , wherein the closure elements each include a coupling device in the form of a toothing for forced coupling.

13 . The closure device according to claim 9 , wherein in the open position a force is applied onto the closure elements due to the repelling effect of the first magnetic elements relative to each other and on closing said closure elements are drawn towards each other due to magnetic interaction with the second magnetic element.

14 . The closure device according to claim 1 , wherein the first closure part includes a pretensioning element which is configured to load the at least one closure element in the engagement direction.

15 . A closure device, comprising
a first closure part, which includes a base element and at least one closure element movable relative to the base element with a form-fitting portion arranged thereon, and a second closure part, which includes an engagement element with an engagement portion formed thereon, wherein in an open position of the closure device the first closure part and the second closure part are separated from each other and can be attached to each other along a closing direction for closing the closure device, and wherein the form-fitting portion of the at least one closure element can be brought into engagement with the engagement portion of the engagement element in an engagement direction substantially transversely to the closing direction, so that in a closed position the first closure part and the second closure part are held at each other along the closing direction, further comprising a first magnetic element arranged on the at least one closure element of the first closure part and a second magnetic element arranged on the engagement element of the second closure part, wherein in the open position the at least one closure element of the first closure part takes a first position relative to the base element, and on closing the first magnetic element and the second magnetic element cooperate in a magnetically attracting way so that the at least one closure element is moved with the form-fitting portion in the engagement direction out of the first position relative to the base element in order to bring the form-fitting portion into engagement with the engagement portion of the engagement element, wherein the first closure part includes at least one first electrical contact and the second closure part includes at least one second electrical contact, wherein in the closed position the at least one first electrical contact and the at least one second electrical contact are electrically contacted with each other.

16 . A closure device, comprising
a first closure part, which includes a base element and at least one closure element movable relative to the base element with a form-fitting portion arranged thereon, and a second closure part, which includes an engagement element with an engagement portion formed thereon, wherein in an open position of the closure device the first closure part and the second closure part are separated from each other and can be attached to each other along a closing direction for closing the closure device, and wherein the form-fitting portion of the at least one closure element can be brought into engagement with the engagement portion of the engagement element in an engagement direction substantially transversely to the closing direction, so that in a closed position the first closure part and the second closure part are held at each other along the closing direction, further comprising a first magnetic element arranged on the at least one closure element of the first closure part and a second magnetic element arranged on the engagement

Assignees

• Fidlock Gmbh

Inventors

• Schröder Michael
• Botkus Breido

Classifications

• A44B13/02

  with spring closure of hook · CPC title

• A41F1/002 Primary

  Magnetic fastening devices · CPC title

• F16B2200/83

  Use of a magnetic material · CPC title

• A44D2203/00

  Fastening by use of magnets · CPC title

• A45C13/10

  Arrangement of fasteners · CPC title