EP4101599A1 - Structure de verrouillage - Google Patents

Structure de verrouillage Download PDF

Info

Publication number
EP4101599A1
EP4101599A1 EP22151585.1A EP22151585A EP4101599A1 EP 4101599 A1 EP4101599 A1 EP 4101599A1 EP 22151585 A EP22151585 A EP 22151585A EP 4101599 A1 EP4101599 A1 EP 4101599A1
Authority
EP
European Patent Office
Prior art keywords
latch
elastic
catch
elastic pull
boss
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP22151585.1A
Other languages
German (de)
English (en)
Other versions
EP4101599B1 (fr
Inventor
Wenquan Li
Yiqiao Fu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ningbo E Power Engine Technology Co Ltd
Original Assignee
Ningbo E Power Engine Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202121315213.5U external-priority patent/CN214904396U/zh
Priority claimed from US17/530,216 external-priority patent/US11788329B2/en
Application filed by Ningbo E Power Engine Technology Co Ltd filed Critical Ningbo E Power Engine Technology Co Ltd
Publication of EP4101599A1 publication Critical patent/EP4101599A1/fr
Application granted granted Critical
Publication of EP4101599B1 publication Critical patent/EP4101599B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
    • B25H3/00—Storage means or arrangements for workshops facilitating access to, or handling of, work tools or instruments
    • B25H3/02—Boxes

Definitions

  • the present disclosure relates to a latch structure for connecting a first object with a second object. More specifically, the present disclosure relates to a latch structure that can be used to separably connect and/or lock two objects together.
  • the purpose of the present disclosure is to provide an improved latch structure.
  • the present disclosure discloses a latch structure that can be used on a carrier such as a box or crate.
  • the left and right sides of the cover of the carrier are each provided with an elastic pull latch that can be pulled out.
  • the elastic pull latch has one sidewall that extends over the upper surface of the latch to form a straight edge above the upper surface.
  • the top portion of the straight edge may be referred to as a latch bar and is configured with a latch groove with an inward opening.
  • An elastic boss capable of moving vertically is mounted inside the elastic pull latch. When assembled, the upper end of the elastic boss extends out of the upper surface of the latch.
  • the left and right sides at the bottom of the carrier are each configured with a catch groove, and a catch is provided on the lower edge of the catch groove.
  • the left and right sides of the cover of a carrier are each provided with a chute with an outward opening.
  • the elastic pull latch is arranged inside the chute with the side wall of the elastic pull latch being exposed outside the carrier.
  • the end of the elastic pull latch that is exposed outside the carrier is also referred to as the outer end of the elastic pull latch.
  • the top portion of the straight edge of the side wall is provided with a latch bar, and the latch groove is located on an inner side of the latch bar.
  • an upper end of the latch bar has a slope on its inner side.
  • the latch bar of the lower carrier is snapped into the catch groove of the upper carrier and the catch of the upper carrier is snapped into the latch groove of the lower carrier.
  • a first spring extending horizontally is fitted inside the elastic pull latch.
  • a stop piece is connected to the first spring and is mounted on the elastic pull latch. The first spring is retained by the stop piece and a side wall of the elastic pull latch.
  • the bottom surface of the elastic pull latch has an elongated through-hole extending horizontally.
  • the stop piece is in sliding-fit with the elongated through-hole and can slide along the elongated through-hole.
  • the lower end of the stop piece extends outside the elongated through-hole.
  • the chute on the upper cover of the carrier has a snap-in hole shaped to match the lower end of the stop piece so that the lower end of the stop piece can be snapped into the snap-in hole.
  • the elastic pull latch may be configured with multiple first springs, for example two first springs as shown in Fig. 3 , and multiple corresponding through-holes.
  • a second spring extending vertically is mounted inside the elastic pull latch, for example, on the lower inner surface of the elastic pull latch, and is connected to the elastic boss.
  • the elastic boss may be situated on top of the second spring.
  • the upper surface of the elastic pull latch has an opening allowing the top of the elastic boss to pass through.
  • the elastic pull latch is internally provided with an accommodating slot for housing the elastic boss.
  • the lower end of the elastic boss may include a spring recess with a downward opening for housing the second spring.
  • the bottom side of the catch of the upper carrier of two adjacent carriers is in contact with and presses onto the top of the elastic boss of the elastic pull latch of the lower carrier.
  • the elastic boss of the elastic pull latch moves outwards.
  • the catch blocks the elastic boss so that the elastic boss is held on the outer side of the catch and the latch is prevented from retracting inwards.
  • the carrier may be a box, a trunk, a crate, or a pallet.
  • each elastic pull latch can be pulled out using one hand and will remain in a pulled-out state without retracting so that other elastic pull latches can be released one by one.
  • stacked up carriers can be released and unlatched "single-handedly," literally speaking, making the latch more convenient to use.
  • the present disclosure discloses a specific latch structure, comprising a carrier, wherein left and right sides of an upper end of the carrier are each provided with an elastic pull latch that can be pulled out; an upper end of the elastic pull latch has a catch groove with an inward opening; an elastic boss capable of moving vertically is mounted in the elastic pull latch; an upper end of the elastic boss extends out of the upper end of the carrier; left and right sides of a lower end of the carrier are each provided with a latch groove, and a catch is provided in a lower end of the latch groove; when at least two carriers of the same structure are stacked one above another, the catch at the lower end of one of two adjacent carriers is snapped into the catch groove of the elastic pull latch at the upper end of the other carrier, and a bottom portion of the catch depresses the elastic boss; and after the elastic pull latch of the lower carrier of the two adjacent carriers is pulled out, the elastic boss is retained on an outer side of the catch.
  • left and right sides of the upper cover are each provided with a chute with an outward opening; the elastic pull latch is arranged in the chute; and an outer end of the elastic pull latch is exposed outside the carrier.
  • a first spring extending horizontally is mounted in the elastic pull latch; a stop piece is further mounted in the elastic pull latch; the first spring is retained between the stop piece and an inner wall of the elastic pull latch; the bottom portion of the elastic pull latch has an elongated through-hole extending horizontally; the stop piece is in sliding fit with the elongated through-hole; a lower end of the stop piece penetrates through the elongated through-hole; the chute has a snap-in hole correspondingly shaped to the lower end of the stop piece; and the lower end of the stop piece is snapped into the snap-in hole.
  • the elastic pull latch is internally provided with an accommodating slot; the elastic boss is arranged in the accommodating slot; the lower end of the elastic boss has a spring recess with a downward opening; and the second spring is arranged in the spring recess.
  • the carrier is a box.
  • the present disclosure discloses a latch structure that can be used on a carrier such as a trunk or a box. These terms may be used interchangeable herein and are not intended to limit the manner of how the disclosed device is used or the scope of the disclosure.
  • the left and right sides of the cover 2 of the carrier are each provided with an elastic pull latch 3 that can extend outwards when pulled.
  • the top of the elastic pull latch 3 is a latch bar 321, which has a latch groove 3211 with an inward opening.
  • An elastic boss 33 capable of moving vertically is mounted in the elastic pull latch 3.
  • the top of the elastic boss 33 extends out of the upper surface of the carrier.
  • the left and right sides of the bottom of the carrier are each provided with a catch groove 11.
  • a catch 12 resembling a rectangular block or a ridge is provided on the lower edge of the catch groove 11.
  • the catch 12 on the bottom of the upper carrier is snapped into the latch groove 3211 of the elastic pull latch 3 located on the cover 2 of the lower carrier.
  • the bottom side of the catch 12 depresses the elastic boss 33. See Fig. 6 and Fig. 7 .
  • the elastic boss 33 is held on the outer side of the catch 12 because the catch 12 blocks the elastic boss 33 preventing the pull latch 3 from moving inwards.
  • the left and right sides of the upper cover 2 of a carrier are each provided with a chute 21 with an outward opening.
  • the elastic pull latch 3 is arranged inside the chute 21 on the cover 2. The outer end of the elastic pull latch 3 remains outside the chute 21.
  • a top portion of the outer end of the elastic pull latch 3 includes a latch bar 321 that sticks outside the pull latch cover 32.
  • the latch groove 3211 is located on the inner side of the latch bar 321.
  • the upper end of the latch bar 321 has a slope 3212 on the inner side, the side that faces the interior of the pull latch cover 32.
  • the slope 3212 matches the slope of the catch groove 11 as shown in Fig. 7 .
  • the elastic pull latch 3 is pushed outwards to snap the catch 12 into the latch groove 3211 of the pull latch and snap the latch bar 312 into the catch groove 11.
  • first springs 34 extending horizontally are mounted in the elastic pull latch 3.
  • Two stop pieces 35 are mounted in the elastic pull latch 3.
  • Each of the first springs 34 is retained between a stop piece 35 and an inner wall of the elastic pull latch 3.
  • the bottom portion of the elastic pull latch 3 has two elongated through-holes 311 extending horizontally.
  • the stop pieces 35 are in sliding-fit with the elongated through-holes 311 and can slide through the through-holes 311.
  • the lower end of each stop piece 35 passes through and comes out of the elongated through-holes 311.
  • the chute 21 on the upper cover 2 of the box is internally provided with a snap-in hole 211 shaped to match the lower end of the stop piece 35.
  • the lower end of the stop piece 35 can be snapped into the snap-in hole 211.
  • a second spring 36 extending vertically is mounted in the elastic pull latch 3 and the elastic boss 33 is situated on the second spring 36.
  • the upper surface of the elastic pull latch 3 has an opening 322, allowing the top of the elastic boss 33 to pass through.
  • the elastic pull latch 3 is internally provided with an accommodating slot 323.
  • the elastic boss 33 is arranged in the accommodating slot 323.
  • the lower end of the elastic boss 33 includes a spring recess 331 with a downward opening.
  • the second spring 36 is housed in the spring recess 331.
  • the elastic pull latch 3 includes a base 31 and a pull latch cover 32 on top of the base 31.
  • the accommodating slot 323 (see Fig. 7 ), the opening 322, and the latch bar 321 are arranged in or on the pull latch cover 32.
  • the elongated through-hole or through-holes 311 are formed in the base 31.
  • the catch 12 of an upper box can directly snap into the latch groove 3211 of a lower box, as shown in Fig. 7 and Fig. 8 .
  • the elastic pull latches 3 can be released one by one, instead of being released one pair at a time by both hands. In this way, the stacked boxes can be separated and removed more conveniently.
  • the elastic boss 33 in the elastic pull latches 3 of the lower box is no longer held by the catch 12.
  • the elastic pull latch 3 of the lower box is automatically reset by the compressed first springs 34.
  • a latch structure comprising an elastic pull latch.
  • the top of the elastic pull latch includes a latch bar configured with a latch groove.
  • the elastic pull latch also includes an elastic boss that moves in and out of the latch cover of the pull latch.
  • On both sides of a box an elastic pull latch is provided at the top and a catch groove having a catch affixed to the lower edge is provided at the bottom.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Stackable Containers (AREA)
EP22151585.1A 2021-06-11 2022-01-14 Structure de verrouillage Active EP4101599B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202121315213.5U CN214904396U (zh) 2021-06-11 2021-06-11 一种锁扣结构
US17/530,216 US11788329B2 (en) 2021-06-11 2021-11-18 Latch structure

Publications (2)

Publication Number Publication Date
EP4101599A1 true EP4101599A1 (fr) 2022-12-14
EP4101599B1 EP4101599B1 (fr) 2024-07-17

Family

ID=80112344

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22151585.1A Active EP4101599B1 (fr) 2021-06-11 2022-01-14 Structure de verrouillage

Country Status (1)

Country Link
EP (1) EP4101599B1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080307835A1 (en) * 2007-06-13 2008-12-18 Jean-Pierre Grenier Carrying case with locking latch mechanism
DE202015005752U1 (de) * 2015-08-18 2016-11-21 Plaston Ag Stapelbarer Koffer mit Kopplungsverbindung und Sicherung
US20170166352A1 (en) * 2015-12-14 2017-06-15 Milwaukee Electric Tool Corporation Storage device system
US9725209B1 (en) * 2016-09-14 2017-08-08 Tefenplast Ltd. Stackable tool box assembly
US20200298392A1 (en) * 2018-07-18 2020-09-24 The Stanley Works Israel Ltd. Stacking latch mechanism

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080307835A1 (en) * 2007-06-13 2008-12-18 Jean-Pierre Grenier Carrying case with locking latch mechanism
DE202015005752U1 (de) * 2015-08-18 2016-11-21 Plaston Ag Stapelbarer Koffer mit Kopplungsverbindung und Sicherung
US20170166352A1 (en) * 2015-12-14 2017-06-15 Milwaukee Electric Tool Corporation Storage device system
US9725209B1 (en) * 2016-09-14 2017-08-08 Tefenplast Ltd. Stackable tool box assembly
US20200298392A1 (en) * 2018-07-18 2020-09-24 The Stanley Works Israel Ltd. Stacking latch mechanism

Also Published As

Publication number Publication date
EP4101599B1 (fr) 2024-07-17

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