FR2634542A1 - DEVICE FOR MOUNTING A DOOR OF A CAST IRON HEATING APPARATUS - Google Patents

Abstract

Device for mounting a door on a cast iron boiler element, formed of four articulation-clamping assemblies, each composed of a hinge 1 directly from the foundry with said door, a housing 11 with two openings 14 15 and a boss 20, from the foundry with the boiler element, a flange 30 and a screw 40. The invention is of interest to manufacturers of cast iron heating equipment.

Description

-1 2634542

  The invention relates to a device for mounting a door of a cast iron heater, for example a sweeping door, loading, or a furnace plate

cast iron boiler.

  Usually a cast iron boiler door has two lateral hinges arranged on the same side, and a system

  clamping device disposed on the opposite side, for example a latch.

  The main drawbacks of this system are the irreversibility of the door, the poor distribution of the pressure on the door seal, the lack of means for the door.

catching up game

  Furthermore, the applicant manufactures a cast iron burner support plate and reversible, whose side hinges are specially designed to come from a foundry without machining with said plate (this is described in more detail in the patent application FR 85 16 811 ). This door also comprises a clamping system of the usual type which will be arranged as in the previous case on the opposite side to that chosen for the articulation of the plate and canned

therefore the disadvantages.

  There are also two or four screw play-back systems, but they can only be used

  if there is enough play at the hinges.

  In all cases, the two functions of articulation and clamping are always separated, and carried out by different means, on the other hand the poor distribution of the pressure around the door seal, and the absence of catch-up means play can lead to leaks

smoke or gas.

  The present invention overcomes all the disadvantages of the prior art, it is a device for mounting a door on a cast iron boiler element, for example a sweeping door, characterized in that it is formed of four articulation-clamping assemblies each composed of: - a hinge directly from the foundry with the door, and consisting of an ear and an axis of rotation parallel to the plane of the door, - 2 - - an open housing came directly from foundry

  with the boiler element, and having a first opening

  in a plane perpendicular to the plane of the boiler element, and of sufficient width for the passage of the axis of rotation of a hinge, a second opening parallel to the

  plan of the boiler element, and of the same width as

  first opening, two lateral guide ribs, a bottom, - a boss coming directly from the foundry with the element

  boiler having a tapping perpendicular to the element

  front wall, - a flange, having a bore, and whose length is sufficient to cover the distance between the boss and the housing and to close at least partially the second opening of said housing,

- a standard screw.

  In addition, the four sets of articulation-clamping are arranged at a distance substantially equal to each other

  around the door, and placed so that the axes -

  are vertically aligned in pairs, and for each pair of axes, one is preferably directed down and the other

to the top.

  The invention will be better understood from the description

  hereinafter made with reference to the appended figures:

  - Figure 1: exploded view of a joint assembly-

clamping according to the invention.

  - Figure 2: front view of a door bearing furnace

  four sets of the type shown in Figure 1.

  - Figure 3: sectional view along B-B of the door of the

figure 2.

  - Figure 4: variant embodiment.

  - Figure 5: side view of a hinge assembly-

clamping in the clamping position.

  The preferred non-limiting embodiment, shown in FIG. 1, mainly comprises: - a hinge (1), - an open housing (10), - a boss (20), - a flange (30), - a screw (40),

- a flange stop (16).

  The hinge (1) consists of an ear (2) coming from a foundry with a door (50), and carrying an axis of rotation (3) of

  cylindrical shape and parallel to the plane of the door (50).

  The open housing (10) has a substantially parallelepipedal shape coming from a foundry with the front of the boiler. Said housing has an adjacent face (12), or merged, with the front plane (60), two vertical ribs (11) perpendicular to the plane (60), whose height is substantially less than the length of the axis (3) , and still has a bottom (13) for example plan, extending

  between the two faces (11) and acting as.support.

  Accordingly, the housing (10) has two openings

  substantially rectangular shapes, an opening (14) in a plane perpendicular to the front plane (60) for the passage of an axis (3), and an opening (15) in a plane parallel to said plane (60) for the clearance the axis towards the front of the boiler; the housing (10) provides lateral guidance of the axis (3) by means of the two ribs (11) and the face

rear (12).

  In addition, the depth of the housing (10) is substantially less than the diameter of an axis (3), so that in the clamping position, the flange (30) described below bears on the axis and not on the housing as represented in

figure 5.

  -4- The boss (20) comes from casting with the front of the boiler, it has a rib (21) serving to support the flange in the closed position, and a tapping (22) perpendicular to the front plane (60 ). The boss (20) and the housing (10) are adjacent to one another and the same

  side with respect to the facade element.

  The flange (30) is obtained by punching a flat iron and has a bore (31) of diameter substantially greater than the diameter of the thread (22). Preferably one end (32) of the flange (30) has two cut angles (33) forming a tip. The length of the flange is at least equal to the length (X) shown in FIG. 1, so as to cover, in the closed position, the rib (21), the boss (22), the boss-housing distance, and the opening (15) in part or in full, while exerting pressure

  on the axis of rotation (3) of the hinge (1).

The screw (40) is a standard screw.

  Reference is now made to Figures 2 and 3.

  The door (50) is non-restrictively, a door foyer mounted on a front facade element (60), said door is equipped with four hinges (1) of the type described above, sharing the outer perimeter of the door in four sections substantially the same length and placed in such

  so that the axes (3) are aligned in pairs. Befor-

  on a pair of aligned axes, the axis of the lower hinge is directed downwards, and the axis of the upper hinge is

headed up.

  It is therefore expected, on the front element four housings (10) and four bosses (20) not shown

  in FIGS. 2 and 3 but represented in FIG.

  - 5 - The door is assembled and closed as follows: The four flanges (30) are held on the bosses

  (20) using the screws (40), the door is applied to the opening

  positioning the four axes (3) in their respective housings (10) and then closing each opening (15) by the corresponding flange (30), abutting on a rib (16) for example contiguous to the housing (11) as in Figure 1 and coming from casting with said housing and the boiler element. The final tightening of the four screws (40) prevents the exit of the pins (3) towards the front, ensures the closing and the sealing of the door, and the catching of the game by adjusting

  tightening each screw individually.

  To open the door, first loosen the four screws (40), then completely remove two screws (40) and two flanges (30) located on the same side of the door, to release two hinges aligned, the door can then rotate about an axis of rotation formed by the other two hinges aligned and not released from their respective slots. An alternative use would be, in the second step, to loosen the screws and rotate

  the flanges to clear the openings (15) of the housing.

  We notice that at any time the user has the choice

the meaning of the opening of the door.

  During the closing of the door, the four sets

  articulation-clamping functions exert a bridging function,

  two of them provide a rotational guiding function of the door, they are two functions in

  incompatible with, but embodied in, the present invention.

by the same technical means.

  The distribution of the four flanges on the periphery of the door ensures a regular distribution of the pressure on the door seal, it is also a means of catching play. The device of assembly which has just been described can

  be used also for mounting a trapdoor

  and has a number of advantages including: - a gain in width and thickness of the door, - clamping points closer to the seal of the door, - the choice of the opening direction of the door or the plate at the time of opening, - a gain in cost price due to the deletion

  drilling the door, and a specific hinge reported.

  Without departing from the scope of the invention, one could imagine alternative embodiments, for example a variant o two axes (3) aligned would be rotated towards each other, in this case the respective housing would be provided between the two hinges and could be united into a single element (11 ') (see

sketch of Figure 4).

  Similarly, protection is not limited to the particular shapes and dimensions of the different constituent elements

which have been described above.

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R E V E N D I CA T I 0 N S

  1. Device for mounting a door on a

  cast iron boiler element, for example a door of ramo-

  swimming, characterized in that it is formed of four articulation-clamping assemblies each composed of: - a hinge (1), directly from the foundry with the

  door (50), consisting of an ear (2) and a rotational axis

  (3) parallel to the plane of the door, - an open housing (10), directly from the foundry with the boiler element, and having an opening (14) in a plane perpendicular to the plane of the element of boiler and of sufficient width for the passage of an axis (3), an opening (15) in a plane parallel to the plane of the boiler element and of the same width as the opening (14), two ribs (11) lateral guidance, a bottom (13), - a boss (20), come directly from foundry with

  the boiler element, having a tapping (22)

  to the facade element, - a flange (30) having a bore (31),

- a screw (40).

  2. Device for mounting a door on a

  cast iron boiler element according to the preceding claim

  characterized in that the four assemblies are arranged at a distance substantially equal to each other around the doors and placed so that the axes (3) are

  vertically aligned two by two.

  3. Device for mounting a door on a cast iron boiler element according to any one of

  preceding claims, characterized in that the deep

  the housing (11) of a hinge-clamping assembly is substantially smaller than the diameter of the axis (3) of said assembly, and in that the flange (30) has a length sufficient to exert, in closing position, a

pressure on said axis (3).

  4. Device for mounting a door on a cast iron boiler element according to any one of

  preceding claims, characterized in that it comprises

  in addition a flange stop (16) consisting of a rib

adjacent to the dwelling (11). -