EP3546686B1 - Device for adjusting the lifting of a part - Google Patents

Description

FIELD OF THE INVENTION

The present invention relates to a device for adjusting the elevation of an end piece. The part can constitute a stop, for example for an opening of a motor vehicle such as a hood, a trunk door, a tailgate. By adjusting the elevation of the room, you can precisely position the sash in the closed position with the rest of the body.

TECHNOLOGICAL BACKGROUND OF THE INVENTION

We know from the document F3002574 such a device. It comprises a socket intended to be secured to the vehicle and an adjustment member, carrying a stopper, which can slide in the socket so as to place the stopper at a determined height. The device is then locked by imposing a movement on the adjustment member aiming to place retaining lugs in locking grooves and to cause teeth and grooves provided respectively on the adjustment members and on the socket to cooperate in order to block everything. movement of the adjuster and freeze the height of the stop.

The solution proposed by this document effectively makes it possible to place the stop at a determined height. However, it does not allow this height to be adjusted simply, in particular after the device has been placed in the locking position.

The document DE 10 2011 101 393 A1 constitutes the closest state of the art and discloses all the technical characteristics of the preamble of claim 1.

OBJECT OF THE INVENTION

The present invention aims to solve this problem. It aims in particular to make it possible to simply adjust, for example by indexing, the elevation of a part.

BRIEF DESCRIPTION OF THE INVENTION

• un corps destiné à être rendu solidaire d'un support, le corps comprenant un fût cylindrique muni d'un filetage interne ;
• une goupille présentant sur une section de sa longueur un filetage externe, et une première extrémité pour porter la pièce.

With a view to achieving, at least in part, this aim, the object of the invention proposes a device for adjusting the elevation of a room, the device comprising:

• a body intended to be made integral with a support, the body comprising a cylindrical barrel provided with an internal thread;
• a pin having on a section of its length an external thread, and a first end for carrying the part.

The pin and the body are assembled to each other through their respective threads and the pin can, when rotated, move along a longitudinal axis to adjust the elevation of its first end.

The body comprises a head provided with a side window and the pin comprises over a section of its length peripheral notches arranged opposite the side window of the body. The adjustment device comprises a latch placed in the side window of the body, the latch cooperating with the notches of the pin to index its movement.

• la pièce est une butée assemblée à la première extrémité de la goupille ;
• la butée comprend un repère principal et la tête est munie d'une pluralité de repères secondaires ;
• le verrou est formé d'un cavalier en U comprenant deux branches formant ou portant chacune une languette flexible ;
• chaque languette flexible comprend une bosse pouvant se loger dans un cran de la goupille ;
• le verrou comprend un cadenas mobile pour bloquer la rotation de la goupille ;
• le cadenas présente une forme en V formée de deux bras, les bras pouvant se placer de part et d'autre d'une dent de la zone crantée ;
• la zone crantée est formée de 6 crans.

According to other advantageous and non-limiting characteristics of the invention, taken alone or in any technically feasible combination:

• the part is a stopper assembled at the first end of the pin;
• the stopper comprises a main mark and the head is provided with a plurality of secondary marks;
• the lock is formed of a U-shaped jumper comprising two branches each forming or carrying a flexible tongue;
• each flexible tongue comprises a boss which can be housed in a notch of the pin;
• the lock includes a movable padlock to block rotation of the pin;
• the padlock has a V-shape formed by two arms, the arms being able to be placed on either side of a tooth of the notched zone;
• the notched zone is formed by 6 notches.

BRIEF DESCRIPTION OF THE DRAWINGS

• La figure la représente une vue éclatée d'un dispositif conforme à l'invention ;
• La figure 1b représente une vue de dessus d'un dispositif conforme à l'invention ;
• la figure 2 représente une autre vue d'un dispositif conforme à l'invention ;
• la figure 3 représente une section au niveau de la zone cranté de la goupille d'un dispositif conforme à l'invention.

Other characteristics and advantages of the invention will emerge from the detailed description of the invention which will follow with reference to the appended figures in which:

• Figure la shows an exploded view of a device according to the invention;
• The figure 1b shows a top view of a device according to the invention;
• the figure 2 shows another view of a device according to the invention;
• the figure 3 shows a section at the level of the notched zone of the pin of a device according to the invention.

DETAILED DESCRIPTION OF THE INVENTION

Referring to Figures la, lb, 2 and 3, the device 1 for adjusting the elevation of an end piece 8 comprises a body 2 intended to be made integral with a support. By “elevation” is meant, in the present application, the distance separating the end piece 8 from a reference point of the body 2. In the case where the device 1 constitutes a stop of an opening of a motor vehicle , the support may consist of a bodywork element or of the vehicle chassis.

Whatever the nature of the support, it is provided with an opening into which the body 2 of the adjustment device 1 can be introduced to be retained therein. To this end, the body 2 can be provided with retaining members, such as flexible tabs allowing the body 2 to be elastically fitted to the support, or locking means making it possible to firmly hold the body 2 to the support.

The body 2 extends in a longitudinal direction and defines a cylindrical barrel provided with an internal thread. At a first end of the barrel, the body 2 comprises a head 3 whose transverse dimension is greater than those of the barrel so as to define a shoulder forming a bearing surface on which the support can be brought into contact. The head 3 has a main opening opening onto the inside of the barrel in order to screw a pin 7 therein, as will be detailed in the rest of this presentation. The other end of the shaft, opposite the head 3, can be closed.

Optionally, the head 3 can be fitted with a sealing washer 4 as is the case with device 1 of the figure 1 , so as to seal the connection between the device 1 and the support.

On the head 3 of the body 2, a side window 5 has been fitted, making it possible to accommodate a lock 6.

The adjustment device also comprises a pin 7. This pin 7 has an external thread 7a over a section of its length. On a first end of the pin, there is provided an upper connection zone 7c, to receive, for example by fitting, the end piece 8 whose elevation is to be adjusted. In the example shown in the figures, this part 8 consists of a stopper made of an elastomeric material.

The stop 8 has a peripheral notched zone 8a which facilitates its gripping, in particular for the setting in motion of rotation of the pin 7.

The dimensions of the pin 7 and the barrel of the body 2 are chosen so that the two parts can be assembled together by means of their respective threads, by screwing. The pin 7, when it is driven in rotation, can then move in a longitudinal direction, which makes it possible to adjust the elevation of the end piece, here the elastomer stop 8.

As is well known per se, the pitch of the internal and external threads of the shaft of the pin 7 is chosen to determine the variation in elevation of the end piece 8 for each complete rotation of the pin 7 in the body 2. For example, by choosing a pitch of 6 mm, the elevation of the end piece 8 will be varied by + or - 1 mm from a nominal elevation, by imposing a rotation of one sixth of a turn of the pin 5 in one direction or the other.

To facilitate the use of the adjustment device 1, provision is made to form a first mark 8b on the elastomer stopper 8, and a set of secondary marks 3a, 3b on the head 3 of the body 2. A secondary reference mark 3a can form a reference on which the first mark 8b is aligned in the adjustment configuration of the device 1. The secondary marks are separated from each other by a constant angular offset, here by 60 °. By moving the pin 7 in rotation, the first mark 8b can be positioned opposite one of the secondary marks 3a, 3b, and the elevation adjustment of the end piece can be controlled with precision. .

Returning to the general description of the adjustment device 1, the pin 7 also comprises, in a section of its length, notches 7b. As is clearly visible on the figure 3 , these notches 7b can be defined by the spaces separating the teeth arranged peripherally on the pin 7 in the manner of a gear. The adjustment device 1 shown in the figures comprises six of these notches, uniformly distributed over the peripheral contour of the pin 7.

When the pin 7 is properly assembled in the adjustment position to the body 2, screwed into this body 2, the side window 5 fitted on the head 3 of the body 2 opens onto the notched section 7b of the pin 7.

The lock 6 can then be inserted into the side window 5 of the head 3. This lock 6 is configured to cooperate with the notches 7b of the pin 7 and index the movement of the latter in rotation, and therefore to index the elevation of the end piece.

By coordinating the arrangement of the notches 7b and the marks 8b, 3a, 3b, a mechanism is available which makes it possible to very easily adjust the elevation of the end piece 8, here by sixth of a turn of rotation of the pin 7 Each quarter turn of rotation, depending on the chosen pitch of the threads, corresponds to a determined variation in elevation of the end piece, for example of 1 mm or of 2 mm.

The lock 6 can take the form of a U-shaped jumper, and therefore having two branches 6a, 6b. Each branch 6a, 6b forms or carries a flexible tongue 9, here connected to the free end of the branch 6a, 6b which carries it. Each flexible tongue 9 includes a bump 9a. When the lock 6 is inserted into the side window 5 of the adjustment device 1, in the adjustment position, the branches 6a, 6b are arranged on either side of the notched section 7b of the pin 7. When one drives in rotation the pin 7, the teeth of the notched section 7b come into contact with the flexible tongues 9, and in particular with the bump 9a arranged on each of these tongues 9, to make them bend and thus allow the rotation of the pin 7. A fixed position of the pin 7 is obtained when the bosses 9a of the flexible tabs 9 are positioned in some of the notches 7b of the pin 7.

In this way, we can index the displacement in rotation, therefore in elevation, of the pin 7. The rotational force necessary to make the boss 9 pass from one notch 7b to another is determined by the rigidity of the tongues 9 lock 6.

In an advantageous variant of the adjustment device 1, and for the purpose of securely blocking the elevation of the end piece 8, a locking member 6 can be provided.

For this purpose, the lock 6 carries a movable padlock 10 which can move transversely in the lock 6 by exerting a force on a thrust zone 10a of the padlock 10. The padlock 10 can selectively take an open position for which the pin is free. to be displaced in rotation in the body 2, indexed by the notches 6 cooperating with the flexible humped tongues 9, as has just been described. The padlock 10 can also take a closed position, when it has been moved transversely to enter the lock 6 and block the rotation of the pin 7. The padlock 10 may have at its end intended to penetrate between the two branches 6a, 6b of the lock 6, a V-shape 10b. The arms of the V-shape 10b are designed to cooperate with notches 6 of the pin 7 so as to prevent its rotation, the two arms of the V is placed on either side of a tooth of the notched zone 7b of the pin 7.

In this way, any rotational movement of the pin 7 and the disturbance of the chosen elevation of the end piece 8 which could be caused for example by vibrations of the support on which the device 1 is positioned are prevented.

The use of the adjustment device 1 is particularly simple. It is delivered in the adjustment position, that is to say with the pin screwed into the body 2 so that the notches 7b are positioned vis-à-vis the side window 5 of the body 2. The lock 6 is inserted into the window 5 so that the bumps 9a of the flexible tabs are respectively housed in a notch 6 of the pin 7. The padlock is in the open position. Advantageously, the first mark 8b of the end piece 8 is opposite the reference mark 3a placed on the head 3 of the body 2.

The adjustment device 1 is then positioned on the support. We can then adjust the elevation of the end piece 8, here the elastomeric stopper, by gripping this piece at its notched zone 8a and by imposing a rotational movement on the pin 7, to come and place the first main mark 8a on one of the secondary marks 3b. The sixth-turn movement is indexed by the cooperation of the notches 7b with the bumps 9a of the tongues 9.

When the end element 8 is positioned at a chosen elevation, the device 1 can be blocked by exerting a force on the thrust zone 10a of the padlock 10, which tends to place each of the V-shaped arms 10b of the padlock. padlock 10 on either side of a tooth of the notched zone 7b of the pin 7. This prevents any unwanted rotational movement of the pin 7.

The parts making up the device 1 which has just been presented can be made of a plastic material, and the device manufactured by injection, or by additive construction.

Of course, the invention is not limited to the embodiment described and variant embodiments can be provided without departing from the scope of the invention as defined by the claims.

Claims (8)

1. Device (1) for adjusting the elevation of a part (8), the device comprising:

   - a body (2) intended to be secured to a supporting means, the body (2) comprising a cylindrical barrel provided with an internal thread;

   - a pin (7) having an external thread (7a) over a portion of its length, and a first end (7c) for supporting the part (8);

   the pin (7) and the body (2) being joined to one another by means of their respective threads and the pin (7) being able, when it is rotated, to move along a longitudinal axis in order to adjust the elevation of its first end, the device being characterized in that the body (2) comprises a head (3) provided with a lateral window (5) and the pin (7) comprises peripheral notches (7b) over a portion of its length that are arranged facing the lateral window (5) of the body (2), and the adjusting device comprises a locking means (6) which can be inserted into the lateral window (5) of the body (2) in order to engage with the notches (7b) of the pin (7) and index its movement.
2. Adjusting device (1) according to the preceding claim, wherein the part (8) is a stop joined to the first end (7c) of the pin (7).
3. Adjusting device (1) according to the preceding claim, wherein the stop (8) comprises a main marking (8a) and the head (3) is provided with a plurality of secondary markings (8a, 3a, 3b).
4. Adjusting device (1) according to any of the preceding claims, wherein the locking means (6) is formed by a U-shaped staple comprising two legs (6a, 6b) each forming or supporting a flexible tab (9).
5. Adjusting device (1) according to the preceding claim, wherein each flexible tab (9) comprises a protrusion (9a) which can be accommodated in a notch (7b) of the pin (7).
6. Adjusting device (1) according to any of the preceding claims, wherein the locking means (6) comprises a movable padlock (10) for blocking the rotation of the pin (7).
7. Adjusting device (1) according to the preceding claim, wherein the padlock (10) has a V-shape (10b) formed by two arms, the arms being able to be placed on either side of a tooth of the notched region (7b).
8. Adjusting device (1) according to any of the preceding claims, wherein the notched region (7b) is formed by 6 notches.

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