# US 7,338,315 B2 · Closure device with a movable flap

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- Number: US 7,338,315 B2
- Document ID: US7338315B2
- Status: Granted
- Kind: B2
- Application number: 11/657,735
- Filed: 2007-01-25
- Published: 2007-08-16
- Granted: 2008-03-04
- Earliest claimed: 2007-01-25
- Assignees: Legrand; Legrand SNC
- Inventors: Jacques Fauriot; Etienne Rejou
- Web page: https://patentgrep.com/patent/US7338315B2

## CPC

- H01R 13/447: Shutter or cover plate
- H02G 3/14: Fastening of cover or lid to box
- H01R: ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H02G: INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES

## Abstract

The invention relates to a closure device comprising a wall, an opening provided in this wall, a flap which selectively adopts at least one closed position in which it blocks the opening and an open position in which it uncovers this opening. Pins are connected to a first edge of the flap, and recesses provided in the thickness of the wall on either side of the opening to receive the pins. The device of the invention also comprises flexible arms which connect the pins to the first edge of the flap in an elastic manner in the direction of bringing the pins towards one another. These arms protrude from the first edge and from the rear face of this flap.

## Claims

### Claim 1

A closure device comprising:
a wall having a front face and a rear face,
an opening provided in said wall,
a flap, said flap having a front face and a rear face which selectively adopts at least one of a closed position in which the flap blocks the opening and an open position in which the flap uncovers said opening,
pins connected to a first edge of the flap,
recesses in the wall adjacent the opening, said recesses (5) being disposed to receive the pins, and cooperate with the pins to hold the flap relative to the wall at least in its closed position, wherein said closure device further comprises:
flexible arms connecting the pins to the first edge of the flap and biasing the pins towards one another, and said flexible arms being arranged to protrude from the first edge and from the rear face of said flap.

### Claim 2 (depends on 1)

A closure device according to claim 1, wherein said opening has a first edge and said closure device further comprises a separating part arranged close to the first edge of the opening and adjacent to the first edge of the flap when said flap is in the closed position,
wherein said separating part defines a retraction slot inside said opening, and
said flap being adapted to move from its open position to a retracted position by sliding inside the retraction slot.

### Claim 3 (depends on 2)

A closure device according to claim 2, wherein the arms have a bayonet profile,
the rear face of the wall has hollowed recesses of beyond the retraction slot with respect to the separating part, and
said flap moves from its closed position to its open position upon tilting of the rear face of the flap on a front edge of the separating part, thus, inserting of the first edge of the flap into the slot, and at the same time releasing the pins from the recesses.

### Claim 4 (depends on 1)

A closure device according to claim 1, wherein the pins have outer faces which slope towards a median plane of the flap, and
said recesses which are bordered by reliefs each have a first slope in a direction of insertion of the pins and a second slope in a direction of extraction of the pins, the flap thus being non-removable, and said second slop being steeper than the first slope.

### Claim 5 (depends on 1)

A closure device according to claim 1, wherein the wall is made of a thermosetting polymer.

### Claim 6 (depends on 1)

A closure device according to claim 1, wherein the flap, the arms, and the pins are made of polycarbonate.

### Claim 7 (depends on 2)

A closure device according to claim 2, wherein the pins have outer faces which slope towards a median plane of the flap, and
said recesses which are bordered by reliefs each have a first slope in a direction of insertion of the pins and a second slope in a direction of extraction of the pins, the flap thus being non-removable, and said second slop being steeper than the first slope.

### Claim 8 (depends on 2)

A closure device according to claim 2, wherein the wall is made of a thermosetting polymer.

### Claim 9 (depends on 2)

A closure device according to claim 2, wherein the flap, the arms, and the pins are made of polycarbonate.

### Claim 10 (depends on 3)

A closure device according to claim 3, wherein the pins have outer faces which slope towards a median plane of the flap, and
said recesses which are bordered by reliefs each have a first slope in a direction of insertion of the pins and a second slope in a direction of extraction of the pins, the flap thus being non-removable, and said second slope being steeper than the first slope.

### Claim 11 (depends on 3)

A closure device according to claim 3, wherein the wall is made of a thermosetting polymer.

### Claim 12 (depends on 3)

A closure device according to claim 3, wherein the flap and the pins are made of polycarbonate.