FR2691743A3 - Hinge device for housing. - Google Patents

Abstract

A hinge device for a housing comprising a pin (30) mounted in an inner tube (10) which is mounted in an outer tube (20). A first assembly end (31) of the shaft (30) protrudes from the inner tube (10) and is connected to the cover (34) of the housing, while the outer tube (20) has a second end of the housing. assembly (21) connected to the body of the housing (22), so that if the axis (30) is actuated in pivoting inside the outer tube (20), the friction between them is able to immobilize the cover ( 34) in a given position relative to the housing body (22).

Description

The present invention relates to a hinge device for a housing, in

particular a case of the type

  used in a laptop or the like.

  A conventional hinge device as shown in FIG. 5 appended consists of a pin 41 received in pivoting in a support part 43 and an elastomer seal 42 placed between the two parts to create a compression friction in the assembly axis 41 and support piece 43 However, after long use, the elastomer seal 42 loses its elasticity and causes a

  malfunction of the hinge device.

  Consequently, the present invention relates to a hinge device for a housing comprising a pin mounted in an inner tube which is itself mounted in a tube.

outside.

  The axis comprises a rod, a flange, and a first assembly part The outer tube has an open end and a second assembly part The inner tube and the axis are received in the outer tube by the open end of the latter, the first assembly part projecting from the outer tube, the rod being received in friction and pivoting in the inner tube and the flange being arranged against an outer end of the

inner tube.

  The first assembly end of the shaft which projects from the outer tube is connected to the housing cover, while the outer tube has a second assembly end connected to the housing body, so that when the axis is actuated in pivoting in the outer tube, the friction between them is capable of locking the cover in a desired position relative to the body of the housing. The hinge device for housing according to the invention has the advantage of a long duration

of use.

  Figure 1 is an exploded view of a device for

hinge according to the invention.

  Figure 2 is a perspective view of a

  hinge device according to the invention connected to a housing.

  Figure 3 is a partial sectional view along

from line 3-3 in Figure 2.

  Figure 4 is a schematic view showing the

  hinge device mounted on a housing.

  FIG. 5 represents a conventional hinge device. With reference to FIGS. 1 to 4, a hinge device for immobilizing a pivoting cover 34 in a chosen position relative to a housing body 22 comprises two hinge means, each of which comprises an axis 30, an inner tube 10 and an outer tube The axis 30 comprises a rod 37, a collar 33 and a first part

  assembly 31 fixed securely to the pivoting cover 34.

  The outer tube 20 has an open end 25 and a second assembly part 21 securely fixed to the body of the housing 22 The inner tube 10 and the axis 30 are both received in the outer tube 20 by the open end 25 with the rod 37 received in friction but in pivoting in the inner tube 10 and the flange 33 against an outer end of the inner tube 10 The friction between an inner periphery of the inner tube 10 and an outer periphery of the rod 37 and between an inner periphery of the tube outside 20 and the flange 33 allows the pivoting cover 34 to be immobilized in a position desired by

relative to the body of the housing 22.

  As shown in Figure 4, two hinge devices are mounted on both sides of the housing However, it is possible to vary the number of hinge devices The hinge device can be used on different types of housings, and their number is a function of

case type.

  The inner tube 10 is made of a polyamide type material to have a long service life, since the inner periphery and the outer periphery of this tube withstand relatively high friction when the axis 30

  is manually immobilized relative to the outer tube 20.

  The first assembly part 31 of the axis 30 is subject to a collar 35 of the cover 34 and the second assembly part 21 of the outer tube 20 is subject to a second

3 2691743

  collar 23 of the housing body 22 The first assembly part 31 of the axis 30 is formed of a first groove 32 intended to receive a first ring 36 in the form of C to ensure the fixing of the axis 30 to the cover 34 The second assembly part 21 of the outer tube 20 is also formed of a second groove 27 intended to receive a second C-shaped ring 24 for fixing the outer tube 20 on the housing body 22 However, the assembly parts 31 and 21 are not limited to those shown in FIG. 1,

  and can be modified to fit different enclosures.

Claims (2)

  1) Hinge device for housing, making it possible to immobilize a pivoting cover (34) in a given position with respect to a housing body (22), comprising in combination an axis (30), an inner tube (10) and a outer tube (20); said axis (30) comprising a rod (37), a flange (33) and a first assembly part (31) securely fixed to said pivoting cover (34); said outer tube (20) having an open end (25) and a second assembly portion (21) securely attached to said housing body (22); said inner tube (10) and said axis (30) being received in said outer tube (20) by said open end (25), said rod (37) being received in friction and pivoting in said inner tube (10) and said flange (33) against an outer end of said inner tube (10); friction between an inner periphery of said inner tube (10) and an outer periphery of said rod (37) and between an inner periphery of said outer tube (20) and said flange (33) allowing said pivoting cover (34) to be immobilized in a given position with respect to said housing body (22).   2) Hinge device for housing according to claim 1, wherein the inner tube (10) is made in a material of the polyamide type.