MXPA98001932A - Article that comprises two articulated elements one in relation to the or - Google Patents

Abstract

The present invention relates to an article comprising: a first element and a second element articulated to each other, an articulation bolt joined in the first element and in the second element, a fixing arrangement extending between the first element and the bolt for fixing the first element and the bolt relative to one another: a locking arrangement extending between the second element and the bolt for fixing the second element and the bolt relative to one another when the second element and the bolt are in a position Predefined axial and angular relative, and the first element, the second element and the bolt are adapted to cooperate so that the application of a force between the first element and the second element at least equal to a predetermined threshold, while the bolt and the second element is in the predefined relative axial and angular position, produces a relative axial movement between the bolt and the second element to release r the blocking arrangement so that the pin is free to rotate in the second element, where the blocking arrangement includes a first blocking arrangement and a second blocking arrangement, wherein the first blocking arrangement is made of a softer material than the material forming the block. second blocking arrangement, wherein the application of force greater than the predetermined threshold deforms the first blocking arrangement made of the softer material such that the relative angular movement occurs between the bolt and the second element providing an inclined ramp which allows the second blocking arrangement moves beyond the second blocked arrangement

Description

ARTICLE THAT COMPRISES TWO ARTICULATED ELEMENTS ONE IN RELATION WITH THE OTHER The invention relates to articles comprising two articulated elements, one in relation to the other. It is an article that can be placed in a configuration, where the two elements are kept, provisionally, rigid one in relation to the other, and that can be placed, comfortably, from the configuration to maintain the rigid state , in a configuration where the two elements have the freedom to rotate, one in relation to the other, the configuration to maintain the rigid state by placing, for example, the two elements in a relative position where it is particularly easy to mount the article on the support that should receive it, and the article is placed in normal articulation configuration once the operation of mounting it on the support ends. In this sense, the invention proposes an article comprising a first and second elements articulated one in relation to the other; which is characterized in that: it comprises a hinge pin that engages in the first element and in the second element; the first element and the bolt include the means for them to unite in rotation, one in relation to the other; the second element and the bolt including the obstruction means so that, when the first element and the bolt are in a predefined, axial and angular position, the joints rotate one relative to the other; and the first element, the second element and the bolt are adapted to cooperate, and for the exercise between the first and second elements, a coupling at least equal to the predetermined threshold, when the bolt and the second element are in the position aforementioned, relative to the angle and the predefined axis, producing a movement, between the bolt and the second element, relative to the axis that releases the obstruction means, so that the bolt is free to rotate in the second element. The fact of going from the configuration in which the rigid state is maintained to the normal articulation configuration by a relative axial movement between the bolt and the second element offers the advantage of being very easy and simple to operate, since it is sufficient to foresee that after there is, between the first and second element, a coupling greater than a predetermined threshold, the cooperation between the obstacle means creates, by the reaction between the bolt and the second element, an axial force having the sense and the intensity that is required to produce the desired movement. It will be noted that the invention allows the passage of the normal configuration without having to break a part of the article that forms the obstacle in the configuration to maintain the rigid state, so as to eliminate the risks of undesirable effects that the fragment could produce. of the article that is separated due to the rupture, in particular the annoyance when the two elements pivot even in an environment susceptible of presenting vibrations as for example the interior of a vehicle, or the sound vibrations. According to the preferred characteristics that allow a simple, convenient and economical embodiment, one of the means of obstruction comprising the bolt and the second element is made of a material less hard than the material that is used to elaborate the other means of obstruction , in such a way that when carrying out the coupling above a predetermined threshold, the obstruction means that is made of the less hard material is deformed, so that it is possible to realize a relative angular movement between the bolt and the second element, when the clogging means is made of a less hard material which provides the other obstruction means with an inclined ramp thanks to which the relative angular movement between the pin and the second element produces relative axial movement between them. According to other preferred characteristics, in response to the operating imperatives found very often in practice, the first and second elements comprise the means to maintain a mutual axis, and the bolt and the first element cooperate so as not to allow relative axial movement between them, but when they undergo a relative axial stress greater than a predetermined threshold. Thus, it is the pin (and not the second element) that is displaced in relation to the first element, since there is the means to maintain a mutual axis between the first and second elements. It is well understood that the threshold that must, at least, achieve the coupling that is carried out between the first and the second element to make it change the configuration that maintains the rigid state, corresponds directly to the threshold or limit that the effort must pass axial between the second element and the pin so that a relative movement between the latter is made. Preferably, for reasons of simplicity and economy, the bolt is firmly attached to the first element. According to the other preferred features, for safety reasons, the bolt and the first element comprise means for preventing the bolt from being released or disengaged from the first element. Preferably, for reasons of practical realization: the first element and the bolt comprise, respectively, a groove and a tongue to be joined, so that they rotate one in relation to the other; and / or the bolt comprises a barrel or body, a head that is at one end of the body, a pin projecting in relation to the body or barrel and a tongue projecting in relation to the body, and is oriented in a direction axial, where the tongue is less thick than the pin and the head and pin extend. It will be appreciated that the invention is particularly convenient for articles comprising a recovery spring, for angularly positioning the first element and the second element, one the relationship with the other, in a predetermined direction, where the angular course or movement between the first and the second element comprises a relatively limited position, towards which the spring or spring directs the article, and where the obstruction or obstacle means maintain the article in contact with the spring, in an angular position distant from the limit position; and more particularly, at the moment in which the first element is formed by a steering handle of the vehicle, and the article comprises two second elements in which each one forms a holding plate on the body or structure of the vehicle, with the aforementioned ones. clamping plates disposed, each, at a respective end of the handle, wherein each platen cooperates similarly with the handle. Next, the description of the invention will be made in relation to an example of embodiment, which is provided by way of illustration and not limitation, with reference to the attached drawings. Wherein: - Figure 1 is a perspective view of an article according to the invention, comprising a turning handle for a car and two plates on which the handle is articulated, at each end, respectively, this article is mounts in a configuration where the handle is held firmly to each of the platens in an angular position when the handle is lowered relative to the platens; Figures 2 and 3 are perspective views of an end of the handle that is seen in the left part of Figure 1, the view of Figure 2 is taken, practically from the same angle as the view of Figure 1, while Figure 3 allows to see the inner side of the lateral inner wall of the cavity at the end of the handle; Figure 4 is a perspective view of the fixing plate, shown on the left in Figure 1; Figure 5 is a perspective view of the bolt used to articulate the handle and one of the fixing plates; Figure 6 is a perspective view of the end of the article shown on the left in Figure 1, with a partial cut that allows to see the cooperation or interaction between the handle, the bolt and the platen; Figure 7 is an elevated view of a cut taken from the article at the level of the articulation leg of the platen, shown on the right in Figure 6; Figure 8 is a view similar to Figure 7, but with the pivoting handle in relation to the platen, where the obstacles provided in the bolt and in the platen are free; Figure 9 is a plan view taken along the line XI-XI of Figure 8, showing the deformation of the blockage pin of the stage, respectively by movement and by inclination. The article 1 shown in figure 1, comprises a handle for fastening at the moment in which the vehicle makes a turn 2, two fixing plates 3A and 3B, on which the handle 2 is articulated, respectively at the end that it can be seen to the left in Figure 1 and in which one can observe on the right, two articulation bolts 4 that are hooked, each one, to the handle 2 and respectively to the plates 3A and 3B, and two spiral springs 5 , of which only the one on the right is represented, arranged around the respective bolt 4 and where each carries a part on the handle 2 and another part on the plate 3A or 3B to be placed in the relative angular position limit, opposite to the one shown in Figure 1, that is, towards the position of minimum necessary space that is indicated in Figure 8, or where the handle is lifted in relation to the platens 3A and 3B. Generally speaking, the right and left halves of article 1 are symmetrical, that is, one is the image in a mirror of the other. Therefore, only details of one side of article 1 will be given below. The handle 2 is made of a plastic material molded in one piece. This comprises at each end a cavity 6 delimiting two opposite lateral lateral walls, respectively: 7A on the external side and 7B on the internal side. As seen, more particularly in Figures 2, 3 and 9, each of the walls 7A and 7B are provided with a projection 8A and 8B which makes them protrude into the cavity 6. In the projection 8A and in a thick part of the the wall 7A, an internal diameter 9A is provided, which leaves towards the cavity 6. An orifice, which passes through, is provided in the wall 7B and in the projection 8B, this orifice comprises an internal diameter 9B that leaves from one side in the cavity 6 and the other side towards the facing 10 which is made in the wall 7B. The profile of the internal diameter 9A, generally, has a circular shape, with three protruding small teeth 11 (Figure 2), which generally have an axial orientation. The profile of the internal diameter 9B is generally circular in shape, with a groove 12 (FIG. 3) axially directed. As will be seen below, the surfaces of the protrusions 8A and 8B that are seen, respectively 13A and 13B, serve as an axial holding surface for the hinged plate at this end of the handle. A hook 14 (not shown in the cavity 6 shown to the left of FIGS. 1 to 3, and FIG. 6) extends, projecting, from the rear wall of the cavity 6, with the In order to define the minimum clearance position of article 6 (raised handle), where one of the hooks of the plate 3A or 3B rests on the tip of the hook 14, as shown in Figure 8. The plate 3A, at Like the plate 3B, it is made of a plastic material that is molded in one piece. This comprises a support 15 from which it extends, on the side seen in the upper part of figures 1, 4 and 6 to 8, a fixing foot 16, which is inserted through the hole made in the wall on which it is intended to mount the article 1, the support 15 is intended to be against the wall, the fixing in the The same is effected by the deformation of the foot 16 thanks to a view (not shown), in which the head cooperates or interacts with the support 15 and where the rod passes through the hole of the latter, between the supports of the foot 16, to be fastened to the nut (not shown) inserted in the housing 18 of the foot 16. For more details about the fixing device where the platen 3A is placed, one can refer to the French patent applications 78.33799 and 96.14367, belonging to the ITW Society of FRANCE On the opposite side of the fixing foot 16, the plate 15 has two articulating legs 19A and 19B, each of which has a free end which constitutes a bearing or articulation bearing 20A and 20B, resp Each of the loses 19A and 19B has, on the outside, a notch 21 that sinks approximately half its thickness. The notch 21 of the leg 19B releases a pin 22 with a rectangular profile that lies just on the edge of the bearing inner diameter 23, a small candle 24 separates the notch 21 from the internal diameter 23 on the side seen to the right of the pin 22 in Figure 4, while the notch 21 communicates directly with the internal diameter 23 of the side seen in the pin of Figure 4. The notch made on the outer side of the leg 19A is similar to the notches 21 of the leg 19B, but does not release or release the pin 22 and does not extend until the inner diameter 25 of the bearing 20A, such that the side wall of this internal diameter is present throughout the thickness of the leg 19A. The bolt 4 is made of a plastic material molded as a single piece, harder than the material of the handle 2 and the material of the platens 3A and 3B. As can be seen more particularly in Figure 5, the bolt 4 comprises a barrel or cylindrical body 26 with a circular section, a head 27 which is at one end of the body or barrel 26 and a tongue 28 projecting in relation to the body 26, and having a generally axial orientation, the tongue 28 extends for a determined length from the head 27, to the pin 29 of the same height as the tongue 28, but wider. The diameter of the body or barrel 26 of the bolt 4 corresponds to the internal diameter 23 and 25 of the plate 3A or 3B, such that the bolt can rotate freely on the plate.

The diameter of the body or barrel 26 corresponds, in the same way, to that of the internal diameters 9A and 9B of the handle 2, while the thickness and height of the tongue 28 correspond to the groove 12 of the internal diameter 9B. Although it is thicker, the pin 29 can pass under pressure through the slot 12, without damaging it, because the material of the pin 4 is harder than that of the handle 2. The shape of the head 27 corresponds precisely to that of the countersigned 10 of the handle 2, which is provided to receive the head 27. It is seen that it is possible to hook the pin 4 in the handle 2, coaxially arranging the bolt 4 and the internal diameters 9A and 9B with the distal end of the body or barrel 26 in relation to the countersigned 10, after it engages the body or barrel 10, in the internal diameter 9B, and finally in the internal diameter 9A, then exerts sufficient axial pressure in the head 27 so that the body or barrel 26 continue to penetrate the inner diameter 9A and to pass the pin 29 through the groove 12 as well as to engage the head 27 in the facing 10. After the penetration of the bolt 4 is complete, the tongue 28 is in the groove. 12 and the pin 29 beyond it, that is to say in the cavity 6. The cooperation between the handle 2 and the pin 4 causes the latter to be slightly hooked on the handle. It is necessary to make some axial effort for the displacement in the reverse direction of the collapse, this movement to remove is possible until the pin 29 is held against the surface 13B of the projection 8B. This achievement in fastening the pin 29 in the projection 8B prevents the pin 4 from disengaging from the handle 2, the axial withdrawal effort that allows the pin 29 to pass again through the slot 12, being greater than the effort that It is in practice. To engage the bolt 4 in the plate 3A or 3B, the bolt 4 is coaxially arranged in the internal diameters 23 and 25, with the distal end of the barrel or body 26 being in relation to the external side of the internal diameter 23, then sinks the barrel or body 26 into the inner diameter 25. The pin 29 is dimensioned so that if the pin 4 completely sinks, relative to the plate 3A or 3B, the pin 29 can be hooked exactly in the space seen under the pin 22, in Figure 4, the interaction of the pin 29, the pin 22 and the wall 21, in opposition to the latter, causes the pin and the plate to be joined, so that they rotate, one relative to the other . Now we will explain how to proceed to assemble the article 1, so that it is placed in the configuration that is maintained in the rigid state shown in Figure 1. Assembly is made of the assembly that allows to place the handle 2, the plates 3A and 3B as well as the springs of the shape as indicated in the Figure, 1. Then the pin 4 is hooked as explained above, on each end of the handle 2, each bolt is hooked, likewise, on the plate 3A or on the plate 3B as well as in the center of one of the springs or springs. At the end of the sinking movement, each bolt 4 is rotatably connected to the handle 2, thanks to the cooperation of the tongue 28 and the groove 12, and similarly connected, so that it rotates, in relation to the platen 3A or 3B, by the cooperation of the pins 22 and 29, such that finally, the handle 2 and the plates 3A and 3B are held rigidly against each other. If a sufficiently high coupling is exerted between the handle 2 and one of the plates 3A and 3B, in the direction in which the handle is lifted, to be placed in the position shown in Figure 8, the pin 22 is deformed by force (Figure 11) or by inclination (Figure 12), or even more, by a mixture of the two, being that the pin material 29 is harder than that of the pin 22. Thanks to this deformation, it is possible to rotate the pin 4 on plate 3A or 3B, this angular movement caused by the reaction between the pins 22 and 29, an axial stress between the bolt 4 and the plate 3A or 3B. Because the support 20A of the platen is placed against the surface 13A of the projection 8A, no axial movement between the handle and the platen is possible, such that the bolt 4 moves axially in the direction of the return movement, until the pin 29 is completely unhooked from the pin 29 (see figures 9 and 10). Thus, the handle 2 can be rotated freely in relation to the plates 3A and 3B, and without being required, the springs 5 place the handle against the plate 3A or 3B, in the minimum necessary space configuration shown in FIG. Figure 8. In practice, article 1 is delivered to an operator who must assemble it in the structure of the vehicle, in the rigid configuration shown in Figure 1, which allows him to place, in a comfortable way, feet 16 of the plates 3A and 3B in the holes provided to receive them, after turning the face or side that allows the fixing to be made. Once the two platens are fixed, the operator makes an effort to rotate or move the handle in the direction toward which it rises, the two bolts 4 move axially the desired distance, and thus the handle 2 is free to rotate in relationship with plates 3A and 3B. In this way the assembly of article 1 on the vehicle is completed. It is noted that ~ the spacing between the respective outer faces of the supports 20A and 20B is smaller than the distance separating the faces 13A and 13B from the projections 8A and 8B. This allows having a certain tolerance for the separation between the holes of the vehicle in which the respective feet 16 for the plates 3A and 3B must be inserted, but the clearance is not sufficient to allow the pins 22 7 29 to be disengaged without the pin 4 have an axial recoil movement. In the variations that are not shown, the spur or pressure clamping tip of the body or barrel 26, in relation to the handle 2, are suppressed, the clamping under pressure is obtained directly from the entire cylindrical surface; the head 27 and the facing 10 have a completely circular shape, instead of having half-planes, or having any other shape. In other variants that are not shown, the second articulated elements are different from a turning handle and a fixing plate; the play is sufficient between the first and second articulated elements, so that there is no need for the bolt to perform an axial retraction movement; or even, the material of the blockage of the stage is harder than that of the obstacle of the pin.

Many other variants are possible depending on the circumstances, and they are mentioned since the invention is not limited to the examples described and represented.

Claims (10)

1. CLAIMS 1. The article that consists of a first and second elements, articulated with each other; characterized in that: - it comprises an articulation bolt which engages in the first element and in the second element; the first element and the bolt include the means for them to unite in rotation, one in relation to the other; - the second element and the bolt including the obstruction means so that, when the first element and the bolt are in a predefined, axial and angular position, the joints rotate one relative to the other; and the first element, the second element and the bolt are adapted to cooperate, and for the exercise between the first and second elements, a coupling at least equal to the predetermined threshold, when the bolt and the second element are in the position aforementioned, relative to the angle and the predefined axis, producing a movement, between the bolt and the second element, relative to the axis that releases the obstruction means, so that the bolt is free to rotate in the second element. The article according to claim 1, characterized in that one of the obstruction means comprising the bolt and the second element, is made of a material less hard than the material in which the other means of obstruction is made , so that the performance of the upper pair has a predetermined threshold that deforms the obstruction means that is made in a less hard material, so that a relative angular movement between the bolt and the second element is possible, with a means of obstruction which is made of a material less hard than that used for the other means of obstruction, of an inclined ramp thanks to the relative angular movement between the bolt and the second element, which produces between them a relative axial movement. 3. The article according to any of claims 1 or 2, characterized in that the first element and the second element comprise means for maintaining a mutual axis and in which the bolt and the first element cooperate so as not to allow, between they a relative axial movement, if they are not subjected to a relative axial effort, higher than a predetermined threshold. 4. The article according to claim 3, characterized in that the bolt engages tightly in the first element. 5. The article according to any of claims 1 to 4, characterized in that the bolt and the first element comprise means for preventing the bolt from disengaging from the first element. 6. The article according to any of claims 1 to 5, characterized in that the first element and the bolt respectively comprise a groove and a tongue for the joints that rotate one in relation to the other. 7. The article according to any of claims 1 to 6, characterized in that the bolt comprises a body, a head that is at one end of the body, a pin projecting in relation to the body and a tongue protruding from the body. relationship with the body, and is oriented in accordance with an axial direction, the tongue is less thick than the pin and extends between the head and the pin. 8. The article according to any of claims 1 to 7, characterized in that the bolt, the first element and the second element, each is made or made of a plastic material molded in one piece, the material of the Bolt is harder than the second element. The article according to any of claims 1 to 8, characterized in that it comprises a recovery spring for angularly positioning the first element and the second element one in relation to the other in a predetermined direction; wherein the angular course between the first and the second elements comprises a position in relation to the limit towards which the spring or spring places the article and in which the obstruction mechanisms maintain the article against the spring, in an angular position in relation to the length of the limit of the aforementioned position. 10. The article according to any of claims 1 to 9, characterized in that the first element is formed by a steering handle of the vehicle and comprising two elements, each formed by a mounting plate; on the vehicle interior, with the fixing plates disposed, each at a respective end of the handle, each plate cooperates similarly with the handle.