FR2781837A1 - Roller shutter bracket motor head mounting incorporates intermediate component suitable for brackets of different dimensions - Google Patents

Abstract

The mounting, which consists of a hole in the motor head (10) designed to receive a centering stub (4) on the bracket (2), incorporates an intermediate component (3) which fits over the stub and is able to move axially so that it can be employed with different sized brackets. The motor head and intermediate component have lugs (11) and notches (32) which engage automatically on assembly and prevent the motor from rotating.

Description

The present invention relates to a device for mounting a head of

  motor in a roller shutter console, device in which the head and the console respectively have a hole and a centering pin which can be plugged axially in the latter. By the term "engine", it will be understood conventionally in the present

  description and in the claims which follow, both an electric motor

  a manual drive means such as a winch.

  Traditionally, roller shutters are rolled up on a horizontal tube-

  tal, placed in a chest located above the opening, window for example, which is

equipped by the roller shutter.

  The trunk is closed, at each of its two ends, by consoles

  these are metal plates playing the role of cover.

  In the case of a motorized shutter, the tube is driven in rotation by a

  electric motor also housed in the trunk.

  The motor is located at one of the two ends of the tube. The engine generally has a cylindrical shape, of diameter identical to that of the tube, of which it

  coaxially extends one end.

  The brackets ensure the centering of the hose reel.

  At the end where the engine is located, the console also ensures recovery

  torque, i.e. immobilization of the rotating motor.

  To perform this function, the motor head is traditionally fixed to the console by means of screws, either directly or via a piece of

  special mounting interposed between the console and the motor head.

  This screw fixing operation, done in the factory, is relatively

tedious and long.

  In the case where the fixing is done directly between the motor head and the console, the screw heads are visible outside the console, which is relatively unsightly. In the case where an intermediate part is used, it is this part which is fixed to the motor head; the part is immobilized in rotation by embedding in the console. With this solution, it is generally necessary to have parts of

  different dimensions, capable of adapting to different dimensions of consoles.

  In this regard, it will be recalled that there are different sections of safes, and therefore console sizes, which are a function in particular of the height of the roller shutter.

  (on which the winding diameter depends).

  In a known solution, however, the intermediate piece is adjustable to the dimensions of the console, by means of lights receiving locking screws. It is

  however, it is also necessary to use screws.

  The present invention aims to solve these problems by providing a mounting device which is done by simple interlocking, without the use of screws or other fixing means of the same kind, and so as to be able to adapt to

  a series of consoles of different dimensions.

  This eliminates the problems associated with manufacturing and storage

  of different types of intermediate parts.

  This objective is achieved, in accordance with the invention, thanks to the fact that: the device comprises an intermediate part capable of being fitted into the console by axial translation, by plugging into said stud; - After fitting, the intermediate piece is immobilized in rotation in the console; - The intermediate piece is shaped in such a way that its nesting and its immobilization in rotation are possible for different console dimensions; - the presence of the intermediate piece does not interfere with the positioning of the motor head in the console, or the insertion of the centering pin in the hole; - the motor head and the intermediate part have complementary means for locking in rotation which automatically come into contact during

of this establishment.

  Furthermore, according to a certain number of additional, non-limiting characteristics of the invention: - said intermediate part has a row of holes capable of being plugged selectively onto said centering pin as a function of the dimensions of the console; the immobilization of the intermediate piece in the console is obtained by pressing at least one angle of the piece against a side of the console; - The intermediate part has at least one series of notches capable of receiving selectively, by axial interlocking, at least one lug carried by the motor head; - Said intermediate piece is a section of profile in the shape of a "U", having a flat bottom crossed by said series of holes, and lateral flanks parallel to this row, in which said notches are formed, with each hole being associated with a pair notches arranged symmetrically on each side of the hole, while the motor head has a pair of lateral ears adapted to engage there. Other characteristics and advantages of the invention will become apparent from the

  description and attached drawings which represent a simple example not

  limiting, a preferred embodiment.

  In the drawings: - Figure 1 is a perspective view "end" of the engine, this view being intended to make the engine head visible; - Figure 2 is an exploded perspective view of the engine assembly, intermediate piece and console, before mounting; - Figures 3 and 4 are also perspective views illustrating this assembly, respectively before and after fitting of the motor head in the intermediate piece; - Figure 5 is a plan view showing the assembled assembly; - Figures 6 and 7 are schematic plan views illustrating the manner

  whose intermediate piece fits two consoles of different sizes.

  In the figures, we have designated by the references 1, 2 and 3, respectively the

  engine, console, and intermediate piece.

  The motor I has a generally cylindrical shape and has a plate, or motor head 10, which - in known manner - has a circular axial bore 6,

  forming a centering hole with respect to the console.

  If we consider Figure 2, the motor 1 extends to the left to form the winding tube, the other end of which also has a similar bore,

  for its centering in the opposite console.

  The head 10 has a pair of lateral projections, or ears, 11 of which the

function will be explained later.

  Console 2 is a console of known type. It is a metal foundry piece with an approximately square outline, the angle of which is truncated, having a flat bottom 20, lateral flanks 21, and a part 22 extending the console downwards; the latter has the function of receiving the wings of the roller shutter as well

  as a guide piece of the deck.

  The sides 21 of the console are intended to fit into the opening of the

trunk (not shown).

  The bottom 20 has, in the central part, a cylindrical journal 4, capable of being inserted axially, along the axis X X 'of the motor, in the aforementioned hole 6, as is well known. The intermediate part 3, which constitutes an essential element of the present invention, is a section of thin sheet metal profile, in "U" shape, having a

  flat bottom 30, and two lateral wings 31, raised at right angles to the bottom 30.

  The central zone of the bottom 30 is crossed by a series of circular openings 5 arranged in line, along the axis of symmetry of the part 3. Each of these openings 5, similar to the hole 6, is adapted to be inserted without play , or with a game

weak, on the nipple 4.

  In the example illustrated in FIGS. 2 to 5, five offset holes are provided. This number corresponds to the number of different sizes of consoles. Note that the distance between certain holes is less than their diameter, so that they interpenetrate and communicate with each other. This is not, however, embarrassing for their

  selective placement on the nipple 4.

  Each wing 31 has a series of notches 32.

  Each hole 5 is associated with a pair of notches; two notches of the same pair are placed symmetrically on each side of the hole 5 with which this pair is associated, in an arrangement identical to that of the ears 11 relative to the

hole 6 in the motor head.

  The notches 32 have the shape of a "U", which is open on the motor side,

  that is to say inside the trunk.

  The width of the notch is adapted to allow nesting without play

  or with little play, from one ear 11, the part 3 having a dog clutch function.

  With particular reference to Figures 3 to 7, we will

  Now explain how the assembly of this assembly is carried out.

  We start by installing, by interlocking, the intermediate piece

  3 in the console, so that the base 30 comes to bear against the bottom 20 of the console.

  This implementation, which is done by an axial translational movement (along X X ') assumes that one plugs one of the holes 5 on the stud 4; for that it is

  necessary to select one of these holes.

  This selection is made in such a way that after installation, two

  angles of the part 3 come to bear against the sides 21.

  This situation is illustrated in FIG. 5, where the support points are referenced 7 and 8. It will be noted, in the example illustrated, that once put in place, the part 3 is oriented obliquely, at 45, relative to on the sides 21 of the console, the support points

  7 and 8 being located on two perpendicular sides 21.

  It will not naturally depart from the scope of the invention by providing for a

  support of the part 3 against a single side 21.

  The part 3 is dimensioned, and the holes 5 are positioned, so that at each console dimension, it is possible to obtain correct support

in colon 7 and 8.

  Thus, the part 3 is perfectly centered on the console, and immobilizes

  rotated relative to it.

  The installation of the engine in the console is also done by simple

axial translation, along X X '.

  The hole 6 is plugged onto the part of the stud 4 which protrudes from the hole 5, and

  the motor head is applied against the base 30 of the intermediate piece.

  At the same time, the ears 11 are engaged in the pair

  of notches 32 which is associated with the hole 5 used.

  The motor i is thus perfectly centered, by the stud 4, on the console 2, and immobilized in rotation relative to this console, by means of the

  ears 11, notches 32, of part 3 and support points 7, 8.

  The console can thus absorb the torque developed by the

  motor 1, during winding or unwinding of the roller shutter.

  Immobilization in translation along X X 'is obtained simply by fixing the two brackets at the ends of the trunk, fixing which is done in the usual way by means of screws, the winding tube and the motor being thus trapped "in

sandwich "between the two consoles.

  The simple comparison of FIGS. 6 and 7 makes it possible to understand how the intermediate piece adapts to two different console sizes. In the example illustrated, the part 3 comprises a row of four holes 5, to which the indices a to d have been assigned. For the console of Figure 6, it is the hole 5c which is used. For the

  console, larger, of figure 7, it is the hole 5b which is used.

  In both cases, there is indeed support from the angles of the part 3 at points 7

and 8 above-mentioned.

  In general, five different case heights are provided, between 125 and 205 mm, and therefore five console sizes, so that there are five holes in the intermediate piece 3; but a different number of holes can, of course, be provided. In any event, the same intermediate piece can be used for the whole

  console sizes. This part has a relatively low manufacturing price.

  As an indication, and for the range of dimensions of boxes given below

  above by way of example, the part 3 is a cut and folded sheet metal part 2 mm thick, 120 mm long, 60 mm wide, 20 mm high; the holes 5 have a diameter of 12 mm, the notches 32 have a depth of 15 mm and a width

8 mm.

  Note the extreme simplicity of assembly, which is reduced to an interlocking

  axial of three elements, without the use of screws or other similar fixing means.

  In the embodiment described, the recovery of the torque between the motor and the intermediate part is ensured by projections provided in the motor head, which cooperate with notches provided in the intermediate part. It is obvious that this arrangement could be reversed, the projections or other reliefs (male elements) being produced on the intermediate piece while the notches, or other openings

  (female elements) are made on the engine head.

  The motor head could have a polygonal contour, or any contour, having two opposite parallel flats allowing its embedding between the two wings of the intermediate piece, thus ensuring its immobilization in

  rotation; in this case, of course, these wings are devoid of notches.

  Finally, the series of holes 5 passing through the intermediate piece could be replaced by an oblong hole (lumen), or even a slot opening onto the outside of the piece; in this case, it is the cooperation of the ears with the notches which ensures the immobilization of the assembly in translation, the motor head being immobilized by

  report to the console (via pin 4).

Claims (5)

  1. Device for mounting a motor head in a roller shutter console, in which the head (10) and the console (2) have, respectively, a hole (6) and a centering stud (4) axially pluggable in the latter, characterized in that: - it comprises an intermediate piece (3) capable of being fitted into the console (2) by axial translation, by plugging into said stud (4); - After fitting, the intermediate piece (3) is immobilized in rotation in the console (2);   - the intermediate piece (3) is shaped in such a way that its socket-   ment and its immobilization in rotation are possible for different console dimensions (2); - The presence of the intermediate piece (3) does not interfere with the positioning of the motor head (10) in the console (2), or the insertion of the centering pin (4) in the hole (6); - the motor head (10) and the intermediate part (3) have complementary means (11, 32) for locking in rotation which automatically come into engagement during this setup.   2. Device according to claim 1, characterized in that said intermediate piece (3) has a row of holes (5) capable of being plugged selectively onto   said centering pin (4) as a function of the dimensions of the console (2).   3. Device according to claim 1 or 2, characterized in that the immobilization of the intermediate piece (3) in the console (2) is obtained by setting   support of at least one angle (7, 8) of the workpiece against a side (21) of the console.   4. Device according to one of claims 1 to 3, characterized in that   that the intermediate piece has at least one series of notches (32) capable of selectively receiving, by axial interlocking, at least one lug (11) carried by the head of motor (10).   5. Device according to claims 2, 3 and 4 taken in combination,   characterized in that said intermediate piece is a section of section in the shape of a "U", having a flat bottom (30) crossed by said series of holes (5), and lateral flanks (31) parallel to this row, in which are provided said notches, with each hole (5) being associated a pair of notches (32) arranged symmetrically on each side of the hole, while the motor head has a pair of lateral ears (11) adapted to get involved.