WO2004090352A1 - Device for mounting carcasses on supports - Google Patents

Abstract

Device for mounting rapidly and automatically components of mechanisms by means of carcasses on supports for the positioning, centering, fixing and blocking of the components without requiring the use of tools, energy or specialized staff.

Description

"HOUSING ASSEMBLY DEVICE IN BRACKETS"

DESCRIPTION

The invention refers to the assembly of parts of components of various mechanisms that are composed of a housing and a support that receives said housing, the support being secured in turn to a seat base that is part of a structure, a machine, a motor vehicle ... etc.

The device can be used for any type of product that has a housing to be connected to a support, in whose product there is a need for positioning, fixing, centering, connection ... etc. of the housing, so as to prevent all six possible movements that any geometric body, the housing in this case, can have in space.

Thus, it is a basic object of the invention a device for quick and automatic assembly of a housing on a support, without the use of machines, tools, equipment or tools and consequently avoiding the consumption of any type of energy, be it hydraulic, electrical , pneumatic ... etc.

Another object of the invention is a device for quick and automatic assembly of a housing on a support that is easy and convenient to implement, and does not require the development of specialized personnel.

Another object of the invention is a device for quick and automatic assembly of a housing on a support that is economical since it avoids almost all the operations necessary for said assembly.

To cover these objectives and in order to help the perfect understanding of the invention, throughout the present description we are going to refer, by way of example, to two components of a vehicle window, a drum housing in plastic material and its respective support, well It is understood that the scope of the invention is not limited to this single application.

As is well known, these housings are normally fixed through rivets, bent claws, ultrasound (melting of plastic) or by means of parafuse, systems all of which represent great investment and high maintenance costs. In some cases, a specific treatment with high maintenance costs and with the collaboration of operators specifically prepared for the proper use, preparation and control of equipment and various operations is necessary.

According to the invention, for the assembly of the assembly, it is sufficient to fit the two components frontally in their respective positions and with a small angular rotation, for example of about 15 degrees, between housing and support, the assembly is correctly positioned, centered and fixed.

The invention therefore starts from a housing and a support, with both components provided with flat and smooth surface areas initially, through which a mutual surface support is carried out in order of connection.

In the present case, the housing has a cylindrical housing for the cable drum, the brake retainer and the crank shaft, as well as input and output channels of the cable itself. The flat surface of the housing is in a plane perpendicular to the axial direction of the cylindrical housing.

The support finds on its flat surface a matching circular hole and its alloy with the open end of the cylindrical housing housing.

The flat surface of the housing has cylindrical projections perpendicular to said plane distributed concentrically with respect to the center of the housing. These projections will be of different dimensions and will be separated from each other depending on the needs of mechanisms. For its part, the support has collision holes distributed correspondingly with the position of the projections of the housing, these holes being concentric with respect to the center of the aforementioned hole.

Both the cylindrical projections of the housing and the collisions of the support will be arranged in the same number, at least two and preferably three, in corresponding positions as indicated, so that when placing the housing on the support, the projections are housed in the colossi

These coliseums show two portions, some of greater width through which the entrance of the cylindrical projections of the housing is received and others of smaller width to which the said projections are adjusted when turning the casing after its introduction.

This operation achieves and guarantees the correct centering of all the components avoiding problems during the operation of the assembly by diverting concentricities of said previously mentioned components, brake retainer, crank shaft and cable drum.

On the flat surface of the housing there are also concentric clamps protruding in an L-shape and regularly distributed, connected to said surface by its smaller arms, which have their wedge-shaped plant. The major arms of these claws extend counterclockwise with respect to the flat surface from which they are born.

In correspondence with these claws, the support is provided with the same number of elongate grooves established concentrically capable of receiving said claws when facing the housing to the support.

When the housing is rotated on the support, the free ends of the claws exceed the thickness of the support and this thickness is collected under pressure from said ends against the flat surface of the housing.

The claws and the grooves will be made in number of at least three, preferably four and will be located according to a theoretical circle generally different from that of the cylindrical projections, for example smaller.

This claw-groove connection guarantees the positioning and fixation of the housing in the transverse direction of the vehicle.

With the turn, the lower arm as a base of the wedge claws, which is wider than the rest of the same is also received inside the aforementioned elongated grooves and functions as a limiter of rotation or end of housing, limiting the rotation of rotation of the housing to be arranged in the desired location, location that will correspond to that in which there is perfect tangency between drum and window pulley.

The housing also has two other projections designed in the form of a profile of teeth arranged concentrically and diametrically, for example, and the support has two concentric windows in correspondence with said teeth.

Both teeth are made on protruding lateral fins of the flat surface of the housing, these fins being partially separated from said surface so that they enjoy some flexibility in a plane perpendicular to that of said surface.

The teeth open gradually in the hourly direction so that their beginning is in their counterclockwise portion and their final forehead in their hourly portion, approximately as opposed to the direction of the aforementioned claws.

When the housing faces the support and is rotated, these teeth slide along the flat surface of the support by flexing the fins on which they are formed, until in said rotation they find the positions of the two windows, in which they are housed.

The two windows of the support have a dimension similar to the plan of the two teeth of the housing so that the fit of these in those are properly adjusted.

In addition, once the housing is mounted, the opposite position of the two teeth with respect to the claws, in their respective housings, prevents the return of the connection to its initial position.

The self-centering cylindrical projections show a particular outer lateral surface with a truncated conical upper area followed by another straight cylindrical lower so that the fit in the collisions is carried out properly, as will be observed with respect to the accompanying planes.

The self-centering projections occupy, as mentioned above, a space within a circular path, as do the support coliseums in which they are housed and secured.

The claws of the housing are also located along a corresponding circular path with those of the grooves of the support.

Both circular paths, those of the projections-colisos and those of the claws-grooves can be made with the same diameter, when the material space of both pieces allowed.

However, it is considered that being both paths of different diameter, a better distribution of the stresses to which these components must be subjected, is achieved during operation.

The flexible tabs that receive the anti-rotation teeth can be practiced in any position within the flat surface of the housing and not necessarily made on the outer sides thereof.

However, taking into account possible problems of material space, the convenience of the tabs being obviously opposite, at the edges of the flat surface of the housing, is highlighted here. Theoretically, there would be no inconvenience either in that the tabs with the teeth of the housing and the corresponding windows of the support were practiced within the same circular path, together with the projections and the claws.

For the reasons mentioned above, the convenience of separating the circular paths of the protrusions, claws and flexible tongues with their teeth is reiterated here.

In these sheets of drawings, an example of a housing of a window regulator of a vehicle and the corresponding support, well understood, as noted above, is represented that this representation is for the purpose of concretion in one of the possible applications of the invention.

- Fig. 1 shows the separate housing and support, representing only the self-centering projections and the receiving and fitting collisions thereof, according to the invention.

-The Fig. 2, represents the housing and the support with the claws and the concentric grooves for its insertion.

- Fig. 3 represents the base of the claws and the concentric grooves of fig. two.

- Fig. 4 shows the side teeth of the housing and the windows of the support for the reception of those ..

-The Fig. 5, allows us to notice all the elements individually cited in figs. 1-4, assembled according to the invention.

-The Fig. 6, is an enlargement of the housing showing all the mentioned individuals.

- Fig. 7, is a perspective detail of one of the self-centering projections of the housing. -The Figs. 8, 9 and 10 represent the self-fixing claws and their relationship and sequence of assembly with respect to the support.

-The Figs. 11, 12 and 13 in turn represent a detail of the teeth in the view (M) of fig. 6 and their assembly with respect to the corresponding support windows.

- Fig. 14, is the stand in perspective from the opposite side of the mounting.

-Fig. 15, finally represents the housing connected to the support, the assembly details of the invention being observed in its entirety.

With respect to figs. 1, 7, 14 and 15, we highlight the housing (1) and the support (2). The housing shows a centered housing (7) for receiving components of the window regulator, as well as some arms (5) that provide steps (6) for the exit and entry of the window regulator cable. A flat surface (3) of this housing (1) faces the surface (4) of the support (2) so that the hole (8) of the support is properly matched with the housing (7) for mounting the other components

The centering of the housing (1) in relation to the support is achieved with the provision of concentric projections (9) on the surface (3) and the surface colisects (10) (4), also concentric and corresponding with the protrusions, when facing the surfaces (3, 4) the protrusions (9) are housed in the coliseums (lθ). the protrusions show the geometry defined in fig. 7 with a loose and embedded entrance into the larger portions (11) of the coliseurs (10), through its end (22, 23). When this has been done, the rotation of the housing (1) is carried out, until the portions (24) of these projections (9) adjust to the positions of smaller width (12) of the coliseums (10), as defined in fig. 15. Thus, housing and support are perfectly centered avoiding any eventual deviation from concentricity.

The fixing between housing (1) and support (2) is achieved with the interplay of the claws (13) and the grooves (14) as described in figs. 2, 6, 8, 9, 10, 14 and 15. These L-shaped claws (13) open counterclockwise and are arranged concentrically and regularly distributed on the surface (3) of the housing (1) and in correspondence with the slots (14) of the support.

By positioning, by confrontation, housing and support, the claws are housed in the grooves (14) and the subsequent rotation of the housing (1) causes the thickness of the support (2) to be fitted and positioned by the claws, figs. 9 and 10.

The self-positioning of the housing and the support is carried out by the base (15) of the claws (13), which base limits the rotation of the housing, as expressed in figs. 3, 8, 9, 10 and 15, doing the end of career function. When turning the housing, the bases (15) contact the ends of the grooves (14) of the support as defined in fig. 10, according to which the base (15) of the claws (13) is about to make the rotation limiting contact.

The anti-return of this housing assembly (1) support (2), is achieved through the projections (16) as teeth that are appreciated with respect to figs. 1, 4, 5, 6, 11, 12, 13 and 15. These teeth (16) are made of lateral tabs (19) of the housing which are provided with the adequate flexibility provided by partial separation (20) with with respect to the body of the housing (1) and the transverse emptying (20 ').

The teeth (16) are directed in counter-clockwise direction in relation to the direction of the claws (13), preferably arranged in diametrically opposite situations. In an anti-clockwise direction, the teeth are born in elevation and extend towards the end (25).

In combination with these teeth (16), the support includes corresponding windows (17) in which those are fitted.

When facing housing and support, the teeth (16) contact the surface (4) of the support and flex thanks to the characteristics of the tongues (19), fig. 12. When rotating the housing, the outer area of the teeth slides along said surface (4) until they find the position of the teeth. windows (17).

When the tongues (19) are forced and the gaps of the windows are found, they are housed in the free spaces of said windows and return to their normal position, fig. 13, so that the front (25) of the teeth faces the corresponding lateral end of the window (17).

As noted in fig. 15, the fronts (25) of the teeth (16) are positioned clockwise and the claws (13) counterclockwise, in such a way that by being in contrast prevents the housing

(1) can return by itself to the initial mounting position.

The assembly and control of the housing (1) on the support (2) therefore begins facing the two surfaces (3, 4) of each of the two pieces, housing the projections (9) in the coliseums (10) and the claws (13) in the slots

(14), as well as facing the teeth (16) against the surface (4) of the support, making the tongues (19) flex.

Next, the housing is rotated at a small angle, for example 15 degrees, whereby the projections (9) are fitted in the portions (12) of the coliseums (10), the claws (13) by pressing the thickness of the support (2), the base (15) of the claws contacting one of the ends of the grooves (14) and the teeth (16) fitted in the windows (17) with their front faces (25) cotacting with the thickness of the support inside said windows.

All of this constitutes a quick and simple assembly without the use of any tool or means outside of both parts, with total control of any relative movement of the housing with respect to the support.

The support (2), of course, will be provided with mooring and fixing areas (18) to the system in question, in the present case to a door or a door trim, for example, being part of a window regulator of a vehicle car.

Claims

REIVΓNDICACIQNES 1.- Device for mounting housings on supports, with a housing (1) that incorporates several mechanisms of a specific system and a support (2) secured to a fixed base to which the aforementioned system characterized by, -the housing (1) and the support (2) are provided with corresponding flat surfaces (3, 4) which face each other, -One projections (9) stand out on the surface (3) of the housing, arranged along a circular and concentric path, which projections correspond to colisa grooves (10) made on the surface (4) of the support in position corresponding to those of the projections in which the coliseums have an area of greater width (11) through which the projections (9) and another area of smaller width (12) are housed in which said projections are fitted when the housing is rotated ( 1) once the projections have been positioned, -a L-shaped claws (13) are born from the surface (3) of the housing following a circular and concentric path, with their openings counterclockwise, which claws correspond to grooves (14) practiced on the surface (4 ) of the support (2), in which the grooves are slightly larger than that of the arms of the claws and these arms adopt a wedged shape so that when the housing is rotated, once the claws are housed, the arms adjust to pressure against the thickness of the support (2), -the bases (15) of the claws (13) of the housing that are also housed in the grooves (14) contact one of the ends of the thickness of the support inside said grooves, -a tongues (19) that stand out, diametrically opposite, from the flat surface (3) of the housing (1), which are partially separated from said flat portion by at least one space (20), on which they are analyzed projections (16) as teeth that start from the counterclockwise side and they extend to frontal surface ends (25), in which these teeth rest on the face (4) of the support by flexing the tabs (19) to be located inside corresponding windows (17) of the support (2) when turning the housing, contacting the front surfaces (25) with the thickness of said support inside the windows, as opposed to the position of the bases (15) of the claws (13), -the rotation of the housing (1) on the support (2) once the projections (9) and claws (13, 15) are housed frontally in the coliseums (10) and grooves (14), respectively, is limited by the dimension Longitudinal collision and grooves. 2. Device for mounting housings on supports, according to claim 1, characterized in that the projections (9) and projections (10) are practiced in a number of two, at least. 3. Device for mounting housings on supports, according to claim 1, characterized in that the projections (9) and the coliseums (10) are made in number of three. 4. Device for mounting housings on supports, according to claim 1, characterized in that the claws (13) and the grooves (14) are practiced in a number of two, at least. 5. Device for mounting housings on supports, according to claim 1, characterized in that the tongues (19) carrying the teeth (16) are made at the diametrically opposite ends of the flat surface (3) of the housing (1) ). 6. Device for mounting housings on supports, according to claim 1, characterized in that the tabs (19) carrying the teeth (16) are made away from the diametrically opposite ends of the flat surface (3) of the housing (3). one). 7. Device for mounting housings on supports, according to claims 1, 5 and 6, characterized in that the tabs (19) with the teeth (16) and the windows (17) are made in a number of two, at least. 8. Device for mounting housings on supports, according to claims 1, 2, 3 and 4, characterized in that the theoretical circles that make up the projecting groups (9) -colosses (10) and claws (13) -ranuras (14 ) are concentric with each other. 9. Device for mounting housings on supports, according to claims 1, 2, 3 and 4, characterized in that the theoretical circles that make up the projecting groups (9) -colosses (10) and claws (13) -ranuras (14 ) form a single circle. 10. Device for mounting carcasses on supports, according to claim 1, characterized in that the housing (1) and the support (2) are a constituent part of a window regulator assembly for automobiles.