FR2788300A1 - Vehicle door stop for holding door stopped in any opening position - Google Patents

Abstract

The door stop comprises a hinge pivot (100) and a casing (200). The pivot is connected to the door and the casing to the bodywork. The pivot is composed of a spindle (110) carrying a balancing cam (120), a wedging cam (130) and a de-clutching cam (140) and rotates freely in bearings (222,232). These cams engage a balancing means (250) and a de-clutching stop (270) at the start of door opening.

Description

The present invention relates to a door stop connecting a door to a

  body (body) allowing to

  keep the door stopped in any open position

  that, comprising a hinge pivot connected to one of the

  ties (door or case) and a box connected to the other part

(box or door).

  Various embodiments of such door stops are already known. The function of these door stops is to hold the door of a vehicle in the position in which it is left, either when it is opened or when it is closed. This is generally a position other than the end positions, i.e. the closed position or the

fully open position.

  Although these door stops give satisfac-

  tion in a certain number of cases, when the axis of the door is practically vertical, it is not the same when this axis is inclined more or less strongly compared to the vertical direction and that the weight of the door intervenes on the effort required to open or close the

  door, the weight tending to pull the door towards the posi-

  tion in which the center of gravity of the door is the

lower.

  However, this variation in torque, which is exerted on

  the hinge pin and thus on the door stopper, does not

  does not put a satisfactory operation of the door stop

  in certain intermediate positions.

  In addition, it was found that the door stop function was only useful when the door was left

  in an open position corresponding to a relative angle

  tively important and in any case not included in the area near the door closing position. In addition, the door stop function could even be inconvenient for the correct closing or ease of opening of the door, at the start of the opening movement, and required the exercise of a greater torque than that necessary.

  to open a door without a door stop.

  The present invention aims to remedy these drawbacks and proposes to develop a door stop whose operation is very largely independent of the angle of inclination of the axis of the hinge pivot, which

  allows the door to be held in any position

  intermediate between the two extreme positions, while

  braving the door stop function for the positions or

  angles close to the closing position or angle.

  To this end, the invention relates to a door stop of the type defined above, characterized in that

  - the pivot, mounted free to rotate in bearings of the bowl -

  tier, has a wedge-shaped wedge cam

  circular, - the housing crossed by the pivot, free to rotate, receives the wedging cam and comprises * an intermediate member, the intermediate member being able

  pivot freely on the jamming cam in the box

  tier and provided * with an orifice formed by a bore opening laterally to receive the wedging cam in rotation, * with a double ramp opposite the outlet of the bore and parallel to the axis of the pivot to form two dihedrons of opposite orientation with the surface of the jamming cam, * two jamming rollers, placed with play in the two wedging dihedrons, and applied elastically to the bottom of the dihedral against the jamming cam and the jamming ramp, * a notching means, associated with the intermediate member and

  to the housing to elastically retain the intermediate member

  diary in a neutral position relative to the case and recall it in this position, * a lug of loosening carried by the case in a

  position such that it meets one or other of the rou-

  jamming waters after the release of the locking means to loosen the jamming roller upstream in the direction of relative rotation and release the

jamming cam.

  So in this realization door stop

  particularly simple, when stopped, the rollers

  ment are integral with the intermediate member and the axis.

  The notching member thus secures the intermediate member to the notching ramp and therefore relative to the housing and

  thus the pivot axis and the housing are locked in rotation.

  To leave this blocking or stopping position, a movement initiation is carried out which results in a succession of phases imperceptible to the user but which gradually release the door stop as if

it did not exist.

  As the housing and the pivot axis make a

  relative movement, we can assume that the case is immo-

bile and the axis pivots.

  Initially, the axis drives, by its wedging cam and the rollers, the intermediate member

  but the notching member with the intermediate member cannot

  wind pivot relative to the notching ramp only if the force (opening torque) exerted on one of the parts

  swivel is enough to clear the notch. If this ef-

  strong is sufficient, the intermediate member thus freed from the notching can pivot relative to the ramp. During this phase of the movement the intermediate organ is always

  integral in rotation with the pivot axis.

  After a certain (very weak) pivoting of

  the intermediate member with respect to the housing, there is a meeting

  be with the loosening lug which releases the roller located upstream in the direction of pivoting. The roller thus emerges from the dihedral and releases the movement of the axis relative to

  the intermediate member and consequently with respect to the housing.

  The pivot can continue to rotate without being retained by

  the intermediate member or by notching with the housing.

  At the end of pivoting, the intermediate member is returned to its notching position relative to the ramp

and therefore in relation to the housing.

  The means ensuring the notching and this works-

  can be very different and can be exchanged in part

  tied to the other of the door stop, that is to say to belong

either at the pivot or at the door.

  Thus, according to another characteristic before-

  gage, the locking means comprises - a locking member belonging to the intermediate member (or housing), - a locking ramp carried by the housing (or the body

  intermediate) opposite the defined notching member-

  sant a path of movement of the notching member during

  during the relative pivot axis / case with a notch for

define the neutral position.

  In a particularly simple manner, the notching member is a shoe sliding elastically in a guide path. This guide path is advantageously

  performed in the intermediate organ.

  According to another characteristic, the organ of

  notch includes a support fitted with a roller and pivotally mounted

  both in the intermediate organ, the support belonging to

  the intermediate member and the ramp, to the housing.

  According to another advantageous variant, the ramp app-

  part to the intermediate member and the notching member is formed of a support provided with a roller, this support being mounted

  swivel in the housing.

  Finally, according to another characteristic, the ramp is pivotally mounted on the housing and the

  notching is carried by the intermediate member.

  To favor the guidance of the ramp or more

  generally the notching means, the intermediate member is formed of two yokes between which the ramp rocks or

  one of the parts of the locking means.

  To avoid restraining the door for the weak

  angles, the door stop according to the invention comprises ma-

  advantageously a means of disengaging the notching means

  within a certain pivot range, in particular the initial range

  tial from one of the end positions and in particular a range from 0 to 20 (in particular from the

closed position).

  According to another advantageous characteristic, the declutching means is a declutching cam carried by the axis and a lock connected to the notching member is provided with a lug for cooperating with the declutching cam and retaining the member

  notched in relation to the ramp and inter

  say to enter the notch during the entire pivotal phase

  relative relative to the declutching range.

  According to another variant, to cancel the action of the locking means, the ramp is extended by an arm to cooperate with a declutching cam carried by the axis to neutralize the action of the locking means during the initial phase of the movement of relative rotation between the pivot and

The box.

  The door stop according to the invention is also

  advantageously supplemented by a balanced balancing means

  nant a balancing cam carried by the axis and a balancing roller mounted sliding in a housing of the housing against the action of a return spring which presses it against the balancing cam and in this case it is interesting that - the housing is formed by a guide bracket, - the roller is rotatably mounted in a sliding support

  in the guide bracket with interposition of the spring.

  Finally, according to another interesting characteristic-

  health, the balancing means includes:

  - a lower plate and an intermediate plate appear-

  in the housing and between which the bracket is placed,

  each plate having a housing forming the rotation bearing

  tion for two areas of the axis on either side of the balancing cam. The combination of the balancing function and the wedging function makes it possible to regulate the force to be exerted on the door to open or close it. As this effort is not only that which the user must exert

  which acts on the door but also the door stop in po-

  stop position, without having to oversize this door stop which would be inconvenient to loosen the stop function of

  door when leaving the intermediate stop position

diary.

  According to the invention, the torque exerted on the char-

  nière, at the door stop, is therefore regular and allows perfect operation of the door stop regardless of the opening angle. Furthermore, this door stop function is disengaged for small opening angles so as not to hinder the opening of the door.

or its good closure.

  The orientation angle of the balancing cam depends on the angular orientation of the tilt of the axis

of the hinge.

  This balancing cam can be positioned

  depending on the type of body to be fitted, with a different angle

  relative to the clutch release cam which is oriented according to the open position, i.e.

always the same.

  It is particularly interesting to give the wedging cam a circular shape so that it is adapted to any angle of rotation that must be chosen for the balancing cam and that it does not intervene in

  this choice, which facilitates the realization of the loading pivot

  and its adaptation to the different types of vehicles to be fitted. According to another advantageous characteristic, the balancing means comprises - a balancing roller mounted to slide in a housing of the housing against the action of a return spring which

  press it against the balancing cam.

  This solution corresponds to an achievement by-

  particularly simple and advantageous of the balancing means,

  the effort to be made to overcome the dependent cam not only-

  ment of the shape of the cam and the slope of the two ramps of the cam but also the hardness of the spring acting on

the balancing roller.

  According to another characteristic of the balancing means, - the housing is formed by a guide bracket, - the roller is rotatably mounted in a sliding support

  in the guide bracket with interposition of the spring.

  Finally, in a particularly simple manner, the balancing means comprises:

  - a lower plate and an intermediate plate appear-

  in the housing and between which the bracket is placed,

  each plate having a housing forming the rotation bearing

  tion for two areas of the axis on either side of the balancing cam. In summary, the door stop according to the invention is

  characterized by a notching means between the intermediate piece

  diary and the door stop box. This means of cran-

  tage must be released at the start of the door opening movement, in particular from any stop position, and it is only after the catch is released that the continuation of the movement releases the blocking link between the one part of the locking means and the other pivoting part of

this door stop.

  Conversely, as soon as the torque exerted on one

  of the parts connected by the door stop stops, the different

  rents elements of the door stop are automatically put in place and hold the door in the position in which it was when the torque exerted on it stopped: the jamming rollers are put in

  places and secures the jamming cam and the

  intermediate; in parallel, that is to say almost simultaneously,

  the notching means returned to the notched position

  holding up to an effort threshold the integral connection between the intermediate member and between the intermediate member and the housing. This structure of the door stop means allows

  ensure the door stop function in both directions

  (opening and closing) while avoiding,

  in a simple way, starting this function from the start

  purpose of the opening or the end of the closing movement.

  In all the embodiments, during a

  movement of the axis from any position

  that, that of the jamming rollers, which is active, makes the pivot and the intermediate member integral. This connection remains maintained until the active roller meets the loosening lug; the roller then comes off from the

  jamming cam and the axis can freely continue its rotation

  tion. According to another advantageous characteristic, - the declutching lever is split on either side of the intermediate member, and the declutching cam is split on either side of the

jamming cam.

  The present invention will be described below from

  in more detail using the accompanying drawings in the-

  which: FIG. 1A is an exploded view of a door stop according to the invention,

  - Figure lB shows the door stop of the

  gure lA in the assembled state, - Figure 1C shows the axis of the door stop, - Figure 2A is an exploded view of the part of the door stop corresponding to the balancing means, - Figure 2B is a perspective view of the part of the door stop with the balancing means of FIG. 2A, - FIG. 3A is an exploded view of the part

  of the door stop corresponding to the disengaged stop means

  ble, - Figure 3B shows a perspective view of the part of the door stop corresponding to the disengageable stop means in the assembled state, - Figure 3C shows the fixed part of the disengageable stop means, - the Figure 3D shows the crew formed by two release locks and the locking shoe according to Figure 3A, - Figure 4A, associated with Figure 4B, is a plan view of the balancing means, - Figure 4B is a plan view of the disengageable stop means, FIG. 4C is a view similar to that of FIG. 4A but with the axis turned relative to the position of FIG. 4A,

  - Figure 4D is a detail of Figure 4B my-

  trant the intermediate member in the notched position, - Figure 4E shows the intermediate member in the disengaged position of the notch, - Figure 5A is an explanatory diagram of the wedging of the door stop in any position,

  - Figure 5B is a diagram corresponding to this-

  him of Figure 5A in the release phase of the stuck position, - Figures 6A, 6B, 6C, 6D show different positions of the disengageable stop means with disabling of the jamming means, - Figure 7A is an exploded view of a second embodiment of the invention, FIG. 7B is a perspective view, in bottom view of the second embodiment,

  - Figure 7C is a top view corresponding to

  in FIG. 7B, FIG. 8A is an exploded view of a third embodiment of the invention,

  - Figure 8B is a perspective view of des-

  above the third embodiment of the invention, in the assembled state, FIG. 8C is a top view on an enlarged scale of the third embodiment of the invention, - FIG. 9A is a partial exploded view of a fourth embodiment of the invention,

  - Figure 9B is a corresponding perspective view-

  laying in FIG. 9A, FIG. 9C is a view in horizontal section of FIG. 9B,

  - Figures lOA-F show views of

  above partial diagrams corresponding to FIG. 9C of the third embodiment in different operating stages,

  - Figure 11A is an exploded perspective view

  top view of a fourth embodiment of the invention, - Figure 11B is a perspective view of

  the assembled state of the embodiment shown partially-

ment to FIG. 11A,

  - Figure 11C is a top view corresponding to

  shown in Figure 11A. According to FIG. 1A, the invention relates to a stop

  door to connect a vehicle door to a body (car-

  bodywork). This door stop allows the door to be held in any open position except at small opening angles, in a range between about 20 and 25

at the opening.

  This door stop consists of a load pivot

  100 and a housing 200. The pivot 100 is connected to one of the parts and the housing 200 to the other part. Usually, the hinge pivot 100 is integral with the door and the

  box 200 secured to the body. The explanation and the des-

  the following description will be made in this hypothesis knowing however that only the relative rotational movement matters

  between the pivot 100 and the housing 200.

  The hinge pivot 100 consists of an axis 110 carrying a balancing cam 120, a wedging cam and a declutching cam 140. In the example shown, the declutching cam 140 is lined with a declutching cam

  'on the other side of the jamming cam 130.

  These different cams 120, 130, 140, 140 ′ are distributed along the axis 110 which itself comprises, in its

  lower part, an axis zone 150, in the intermediate position

  diary, another axis area 151, and at the end another axis area 152. These axis areas cooperate with housings forming the bearings of the housing 200 to allow rotation

  of the hinge pivot 100 with respect to the housing 200.

  According to Figures IC, 4A, the balancing cam

  has a boss 121 bordered on each side by a part

  hollow tie 122, 123. The boss 121 is appropriately oriented as a function of the angular position corresponding to the maximum intensity of the weight vector of the door. This position depends on the inclination of the hinge pivot, that is to say the position of the hinge pivot on the body. The function of the cam 120 is either to increase the effort that must be exerted to pivot the door in the pivot range in which this pivoting is supported by the weight of the door, or to decrease the effort in the range in which the weight of the door does not act or acts less.

  The shape of the balancing cam 120, shown

  sectioned in Figure 4A, does not appear very

  explicit in Figures 1A, 1C. Boss 121 appears simple-

ment to figure lB.

  This balancing cam 120 cooperates with a wheel

  the balancing water loaded by a spring as will be

wrote later.

  According to FIG. 1C, the jamming cam 130 is constituted by a circular crown carried integrally by the axis 110. This crown receives on each of its faces

  the declutching cam 140 and the cam 140 'forming its double.

  The cam 140 is formed of a circular crown 143 with a recess 141 of reduced radius, joining the crown 143 by two radial zones 142. The shape of the cam 140 'is the same and the angular position of the recess 141' as well as those radial zones 142 ', are exactly the same as

  those of the homologous means of the cam 140.

  The angular position of the step 141, 141 '

is defined later.

  Generally, the hinge pivot 100 has an angular orientation or position relative to the door and, depending on this angular position,

  defines the angular position of the cam 120 and that of the cams

  my 140, 140 '; the jamming cam 130 has no angular position since it is formed of a circular cylindrical element. It should be noted that the radius of the contour of the

  cams 140, 140 'is less than that of the wedge cam

  130, leaving a clear surface on both sides 144

  whose role will appear later.

  It should also be noted that the hinge pivot pivots by a relatively limited angle close to

    between the closed position and the fully open position.

  According to FIG. 1A, the housing 200 is formed by a lower plate 210, an intermediate plate 220 and an upper plate 230. These plates are separated by spacers such as, for example, the spacers 215, between the intermediate plate 220 and the upper plate 230. These spacers do not exist in this form between the plates

  210, 220 for the reasons given later.

  The plates 210, 220 constitute the housing of the balancing means and the plates 220, 230, the housing of the disengageable stop means; the intermediate plate 220 is common to the two housings or parts of the overall housing

(200).

  The plates 210, 220, 230 have substantially a

  circle sector shape with one side 211, 221, 231, round

  di, and at the other end, an orifice 212, 222, 232 forming a bearing for respectively receiving the axis zones 150,

  151, 152 of the hinge pin 100.

  The lower plate 210 and the intermediate plate

  diary 220 have, near the rounded edge 211, 221, a lo-

  gement 213, 223 for the positioning of the legs of a guide bracket 240. This guide bracket 240 is in the form of a part with a U-section, lying down, the two sides 241, 242 of which define a path guide 243. The height of these two sides 241, 242 defines the height of this part of the housing also defined by the plates 210, 220. The tabs 244 are introduced into the housings 213, 223 then

  folded (as shown in Figure 1A) ma-

  nière to form an integral assembly composed of parts 210,

220, 240.

  Guide bracket 240 receives a roller

  balancing 250 constituted by a cylinder of circular section

  the surface rotated by a support or guide bracket 251 in which it is mounted on an axis. Caliper 251 is

  intended to be housed in the guideway 243. The rear face

  252 of the guide yoke 251 serves as a support for a

  compression spell (not shown here) supported by

  elsewhere against the bottom of the stirrup 240 (this bottom is the

tie extended by lugs 244).

  The balancing roller 250 bears against the surface of the balancing cam 120 in a substantially linear contact, parallel to the geometric axis of the cam

  , that is to say of the axis 110 and that of the roller 250.

  Figure 4A shows the balancing spring 245.

  The functioning of this balancing means appears

* is clearly seen in Figures 4A, 4C. When the axis 110 is pi-

  voted, for example by 45 relative to the position shown in FIG. 4A, the roller 250 is located in the recess 122 or 123 of the balancing cam 120. To pivot

  then the axis 110 of the hinge pivot in the opposite direction

  sée, it is necessary to push back the roller 250 by compressing the spring

  244 to mount the roller 250 on the cam 121. This ef-

  strong, exerted then on the door and by this one, on the axis

  , is created by the weight of the door, because the pivot axis

  The door structure is only very rarely vertical, as indicated above. Under these conditions, thanks to this compensation, the effort to be exerted on the door to

  an opening or closing movement thus remains practi-

fairly constant.

  The different parts making up the medium

  balancing appear separate in Figure 2A and assem-

shown in Figure 2B.

  According to Figures 1A, IB, 3A, 3B, 3C, 3D, with its intermediate plate 220 and its upper plate 230, the housing 200 forms the disengageable stop means secured to the body. The plates 220, 230 receive between them a part

  260 forming a notching ramp. For reasons of damage

  gement, this part 260 does not itself constitute the spacer separating the two plates 220, 230, this role being provided by the two spacers 215, provided at each end with pins 2151 coming to be placed in housings 224, 234 of the intermediate plate 220 and of the

  upper plate 230. These spacers 215 also include

  flanges 2152 to retain between them the notch ramp 260 which comes to cap them with its two housings

261, 262 located at the rear.

  The front face of the notching ramp 260 has a curvilinear shape centered on the geometric axis of the bearing housings 222, 232; this ramp has a notch 263 for

  receive a locking shoe in a so-called neutral position.

  The upper face of the intermediate plate 220 has a loosening lug 225. The lower face of the upper plate 230 also has such a lug but

  it does not appear in the drawings.

  The two plates 220, 230 are symmetrical.

  In the housing part thus formed by the two plates 220, 230 and the notch ramp 260 with the case

  its two spacers 215, there is a lock

  clutch 270 in fact doubled by a second release lock 270 'of identical shape but removed from the previous one. These two latches 270, 270 ′ are connected by the notching shoe 271 fixed integrally by its pins 273 of square or rectangular section in housings 274, 274 ′ corresponding to the end of the two latches 270, 270 ′ (fig. 3D) .

  The latch 270 has a central opening 272, the same is true of the latch 270 'with an opening 272'. On their opposite face, at the other end of the cam

  notch 271, in the longitudinal direction, the upper side

  of the lower lock 270 ′ comprises a lug

  275 'clutch. The same is true of the underside of the

  lever 270 (fig. 3A) (this lug occupies a position identi-

  but it does not appear in the figures).

  The assembly formed by the two latches 270, 270 ′ and the notching cam 271 receives, between its two latches 270, 270 ′, an intermediate member 280 in the shape of a U, the external outline of which corresponds broadly to those

  latches 270, 270 'and plates 210, 220, 230.

  This intermediate member 280 has a rounded rear face 281 corresponding to the curvature of the notch ramp 260 against which this surface rests and

  slides when the member 280 pivots inside the box

  tier. The member 280 also includes a guide path 282 opening into the rear face 281. This guide path

  282 is designed to slide the catch pad

floor 271.

  In the front part, the intermediate member 280 comprises a circular cavity 283 which receives the wedging cam 130. This circular cavity opens onto a

  extension fitted with a double roof-shaped ramp 284.

  The jamming cam 130, released at the outlet of the circular cavity which receives it, forms with the double

  ramp 284, an opposite double dihedral. The edges of the two di-

  dres are turned towards each other. These two dihedral

  each receive one of the two wedging rollers 290, 291

loaded by springs 292, 293.

  The springs push the two wheels elastically

  water towards the bottom of the two dihedrons. It should be noted that the ramps 284 are parallel to the axis 110 and therefore to the axis of the wedging cam 130 as it appears in the

Figure 4B.

  The two rollers 290, 291 thus, naturally pushed towards the two surfaces of the dihedrons, that of the cam

  jamming 130 and each ramp 284 secures the independent member

  intermediate to axis 110 unless one of the rollers is off

  this. For this, the housing 220, 230 includes a lug of

  loosening 225 placed in the path of the rollers

  to release them from their stuck position. But this location of the lug 225 (or of the two lugs each associated with a plate 220, 230) is such that the roller 290, 291

  only meets the lug after release of the cranial organ

floor 230.

  For this, the housing 220, 230 includes a lug

  disconnection 225 placed in the path of the corner rollers

  cement to free them from their stuck position. However, this location of the lug 225 (or of the two lugs each associated with a plate 220, 230) is such that the roller 290, 291 does not meet this lug until the notching member has not

is released from its notch.

  The parts thus described are assembled in the following manner:

  The axis 110 is placed between the two lower plates

  upper 220 and upper 230, the axis zones 151, 152 coming into the bearing housings 222, 232. The wedging cam

  is then in the cavity 283 of the intermediate member

  diary 280; this cavity is moreover bordered on the top and the bottom by the two disengaging latches 270, 270 'The latches 270, 270' assembled to the notching pad

  271 have been previously installed above and above

  below the intermediate member 280, the shoe 271 being in-

  in the sliding housing 282 with interposition

  of compression spring 285 (fig. 4B).

  The declutching pins 275, 275 'come against the external contour 143 of the declutching cams 140, 140' or in the recess 141, 141 ', depending on the angular position

hinge pin 110 ,.

  The position depends on the combination of the rotational movement of the axis 110 and the translational movement of the

  release locks 270, 270 'guided by the catch pad

  stage 271 and controlled by the combined action of the spring 285 and the surface of the notching ramp 260 with its notch 263

  as will be detailed using FIGS. 6A-6D.

  The two jamming rollers 290, 291 occupy a substantially symmetrical position relative to the two dihedrons formed by the parts of the jamming ramp 284 of the intermediate member 280 and the peripheral surface of the jamming cam 130. The ends of the wedge 290, 291 are located on either side of the loosening lug 225 of the bottom plate 220 and of the lug

  homologous, not apparent in these figures, of the upper plate

higher 230.

  The assembly of the parts constituting the means

  disengageable stop appears in Figure 3B.

  The door stop function will be described below.

  after using Figures 5A, 5B.

  When the door is left in a certain open position, the movement of the hinge pin 110

  having been the one indicated by arrow C, the wedge roller

  downstream cement 290 gets stuck between the surface of the cam 130 and the branch 2841 of the double ramp 284 carried by the member

  intermediate 280. Given the direction of rotation, the

  the water 290 is thus jammed and the roller 291 is possibly-

  ment stuck or at least it will be as soon as the movement of the door tends to be in the opposite direction to direction C. As the notching shoe 271 is engaged in the notch 263 of the notching ramp 260, the roller, and through

  after the door, are kept locked in this position.

  If in these conditions we push the door and the pivot 110

  in the direction of arrow C, when one exceeds a certain ef-

  strong, necessary to disengage the notching shoe 271 from the notch 263, the assembly constituted by the pivot axis 110, the jamming cam 130, the jamming roller (s) 290, 291, as well as the intermediate member 280, pivots relative to the ramp 260 which is fixed, integral with the body. We arrive

  thus in the position of FIG. 5B.

  The loosening lug 225, integral with the housing, that is to say also also integral with the ramp 260, does not act

  not during the movement of the parts described above, not-

  from the position of FIG. 5A to the position of the

  gure 5B. But as soon as, as a result of the overall pivoting, the jamming roller 290 meets the loosening lug

  225 (fig. 5B), this retains the roller 290 which is detached

  that of the dihedral between the branch 2841 of the jamming ramp 284 and the surface of the jamming cam 130. The latter (130), and thus the axis 110, can then continue to rotate freely in the direction indicated by the arrow C. As soon as the action of rotation exerted on the door

  and consequently on axis 110 stops, the door separates slightly.

  rement of the position shown in Figure 5B to refer

  approach that of FIG. 5A and then the jamming roller 290 or the other roller 291 or both at the same time can get jammed again in the two dihedrons formed by the surface of the jamming cam 130 and the two

  branches 2841, 2842 of the ramp 284.

  As soon as the door is subjected to a new movement-

  ment or beginning of movement transmitted by the axis 110, the loosening lug 225 acts against the jamming roller 290 (or

  291) which is upstream, in the direction of the pi-

  relative vote, and thus unlocks this roller, the other roller is automatically uncoated by the very fact of the direction of rotation. The explanations given above for the second phase of the movement, that is to say if one continues to pivot from the position shown in FIG. 5B, when the catch pad 271 is released from its notch 263, are not entirely accurate because the notching shoe 271 must first return to the neutral position in its notch 263, by a reverse movement. This movement is very weak so practically imperceptible. It is provided by

return springs.

  The blocking of the door by its axis 110 on the housing 200, at the end of a partial opening movement or

  partial closure, as described above, is possible

  ble except for the last angular range close to the farm-

  ture (approximately 25 hinge pivot angle before the closed position). For this last phase of the closing movement or start of the opening movement, the door stop function is disengaged by the cooperation of the disengaging cam 140, 140 ′ with the disengaging lugs

275, 275 '

  According to FIGS. 4A-4E, 5A, 5B, 6A-6D, the door stop is released during the initial pivoting from

  the door closed position because there is no interior

  convenient stop to keep the door in a stopped position close to the closed position and even such blocking

  could be seen as bothersome.

  The neutralization of this stop function of

  door in the initial swivel range from the po-

  closing position, for an angle of the order of 20 to 25,

will be described below.

  Very schematically, the notching shoe is kept retracted in this angular range by the contour of the cam 140 against which the release lug bears.

  275, 275 'retaining the bolt 270 and thus the shoe 271.

  But apart from this angular plate, the pin 275, 275 'comes in the hook 141 and allows the bolt 270, 270' and the shoe 271 to advance and penetrate into the notch 263. The pin 275, 275 'carried by the latch 270, 270 ′ is in slide connection with respect to the intermediate member 280

  and the latter, in pivot connection relative to the axis 110.

  The passage in this declutching range occurs only when there is movement, that is to say when the shoe 271 is not wedged in the notch 263. The release of the shoe 271 is neither achieved nor by the cam 140, nor by the lug 275, 275 '. These organs have only a maintenance function. The declutching can be done extremely precisely,

degree close.

  Figure 6A shows the door stop blocked in

  a certain position beyond the declutching range.

  The lug 275 is in the hook 141 and the shoe of

  notching can come in notch 263.

  FIG. 6B corresponds to a closing movement

  ture. The closing force is transmitted by one of the two rollers 290, 291 to the notching shoe 271. When the effort threshold is exceeded, the shoe 271 leaves the notch 263 then the assembly formed by the axis 110, the member 280, the bolt 270, the shoe 271, rotates relative to the ramp 260 until the loosening lug 225 takes off the roller (290 or 291) from the ramp 130, that is to say say axis 110. From

  this movement, the axis 110 (integral with the door) can conti-

  nude its pivoting, freely, without effort. In his movement-

  ment, the shoe 271 has in particular driven the lug 275 (by the

  lock 270) which has come off the hook 141 of the cam 140.

  FIG. 6C shows the entry of the mechanism into the

  declutching range close to the closed position,

  ie the range within which the door stop must be

  crossed out. FIG. 6D shows the case of a reversal of movement of the door in this declutching range: the user decides to reopen the door, therefore to change the

  pivot direction of axis 110 in this range of

  clutch. This reversal of the direction of pivoting means that the other wedging roller (291, 290) now drives the assembly (member 280, bolt 270, shoe 271) in pivoting relative to the ramp 260, in the direction opposite to the previous movement. . Lug 275, (275 ') then rubs against the face

  143 of the clutch release cam 140 and prevents the pad from catching

  271 step to enter the notch 263. The pivoting of the assembly continues freely in the other direction after the loosening of the roller (291, 290). The movement is the same if the user goes as far as closing the door; thanks to the declutching he can reopen his door without exerting any particular effort.

  According to FIGS. 7A-7C, a second embodiment of

  sation of the invention will be shown and described below for

  the parts different from those of the first embodiment

  tion. These parts mainly concern the means of

  to hold the door stop in the position

selected opening hours.

  According to FIG. 7A, this variant relates to the axis

  11OA with its blocking cam 130A of geometric axis ZA re-

  received in an intermediate member 280A, in its omega-shaped cavity 283A, provided in its part not receiving the jamming cam 130A, with a double ramp 284A receiving on both sides a jamming roller 290A, 291A represented

  only in Figure 7C and the like

  ment 290, 291. This intermediate member 280A continues with two yokes 270A, 270'A provided with bearings of 274A, 274'A. These two bearings are intended to receive the support 276A of a notching roller 271A. This support 276A is formed by a

  H-shaped part, with two parallel yokes connected by a

  tretoise and crossed by an axis 273A carrying a spring 277A. This axis 273A is housed with its two ends in the bearings 274A, 274'A. The member 276A carries the notching roller 271A intended to cooperate with a notching ramp 260A, provided with a projecting part with a notch 263A on a

protruding part of a plate.

  The body 260A of the ramp is finished at its ex-

  hoppers by 268A pins used for mounting this

260A notch ramp.

  The set also includes two identical plates

  ticks 220A, 230A (FIG. 7B) which come from either side of the intermediate member 280A and are provided with housings

  222A, 232A (figure 7C) to receive the ends not re-

  shown from jamming cam 130A. The 220A plates,

  230A are fitted with 224A ports at their ends to receive

  see the pins 268A of the body 260A of the notching ramp.

  The assembly formed by the plates 220A, 230A and the

  260A notch ramp is thus a U-shaped piece

  Che, receiving between its two branches, the wedging cam A. The third embodiment shown in Figures 8A-8C is a variant of the second embodiment

  in that the notching ramp is carried by the inter-

  medium while the notching roller is spring-loaded

  between the plates bordering on both sides the inter-

medial.

  More specifically, this third mode of

  realization, which, like the second embodiment, con-

  identifies a variant of the notching means, consists of two plates 220B, 230B forming the housing and between which comes the wedging cam 130B carried by its axis. The two ends 150B, 151B of the axis, on either side of the cam

  130B wedge, are housed in drilled holes

  mant bearings 222B, 232B of plates 220B, 230B. The geometry axis

trique bears the reference ZB.

  The jamming cam 130B is housed in a

  slot forming bearing 283B of an intermediate member 280B This open housing 283B, in the shape of an omega Q, ends in two branches with a double ramp 284B. The two branches each receive a roller (290B, 291B fig.

  8C, like the rollers 290, 291 of the first embodiment

  tion and which have not been shown in this figure 8A).

  This intermediate member 280B is extended by two branches 281B, 282B connected by a cross member 260B forming a

  notching ramp with a notch 263B.

  In the interval between the branches 281B, 282B is housed a notching member with a notching roller 271B carried by a support 276B similar to that of the embodiment of FIGS. 7A-7C; the ends of its axis 273B are housed in holes 274B 274'B provided

in plates 220B, 230B.

  This axis carries a spring 277B which recalls the sup-

  port 276B in a certain position as will be seen later

  laughingly. The ends of the spring 277B are supported on stops 278B provided on the inner face of the plates 220B,

230B.

  FIG. 8B shows this device in the assembled state.

  wheat and Figure 8C the device in top view, with the

  roller 271B, housed in the notch 263B.

  Figures 9A-9C show a fourth variation.

  laughing realization of the notching and disengaging means of

  door stop according to the invention, the figures and the

  corresponding description limited to modifications.

  This variant consists of two plates 220C, 230C, spaced apart, belonging to the housing, to receive between them the wedging cam 130C (this is shown above the plate 230C) whose ends 150C, 151C are housed in the orifices forming bearings 222C, 232C of the plates 220C, 230C. This jamming cam 130C also includes a declutching cam 140C whose role will be described

  later. The geometric axis has the reference ZC.

  Between the plates 220C and 230C, the wedge pin

  130C is housed in an orifice 283C of an intermediate member

  diary 280C in fact formed by two areas 2801C, 2802C, parallel, identical and connected by an intermediate piece 2803C (FIG. 9C). These two tracks 2801C, 2802C bear a

  271C pin or roller used for notching.

  The cavity 283C also has a double ramp 284C and as before, the cavity 283C has a shape of omega Q, the two branches of which each receive a roller.

  290C, 291C (fig. 9C) of the type of rollers 290, 291 for coo-

  pererate with both the wedging surface 130C and the ramps 284C, to ensure a blocking in one or the other of the directions of rotation of the wedging cam 130C, as has

already seen previously.

  The plates 220C, 230C also include each

  cune an orifice forming a bearing 274A, 274'A for the notching member 240C constituted by a V-shaped part, one branch of which is a declutching arm 241C and the other branch of which 245C constitutes a notching cam with a notch 243C planked

  on each side by a ramp 244C, 246C.

  This member 240C is provided with a pin 247C carrying a double return spring 242C, one end of which rests on the declutching arm 241C and the two free ends of which rest on stops provided on the inner face of

  each of the plates 220C, 230C for exerting a torque

  pel on this 240C organ in the direction that will appear in

the following figures.

  FIG. 9B shows the means described above in the assembled state, in perspective. Figure 9C is a view of

  above the above means, in the assembled state showing

  be the shape of the intermediate piece 2803C which connects the

  two flanges 2801C, 2802C leaving room for debate-

  for the 140C clutch release cam.

  The functioning of this notching and

  declutching will be described below using figures lOA-lOF.

  As in the first example of realization,

  the axis llOC, which carries the jamming cam 130A, is solid

  Daire of the door P while the plates 220C, 230C are integral with the bodywork C. This is represented by

  hatching in the corner of the plates 220C, 230C.

  As a preliminary point, it should be noted that any action on the door P results in a pivoting of the axis 110OC integral with the door P and thus of the jamming cam 130C whereas in all cases the plates 220C,

  230C integral with bodywork C remain stationary.

  This movement of the door P and the cam 130C results in the drive of one or the other roller.

290C, 291C:

  - the upstream roller will be released from its locked position by the direction of the rotational movement, - the downstream roller will be driven by the cam 130C and will act on the ramp 284C thus pivoting the intermediate member

280C in the same direction.

  The pivoting of the member 280C is limited in both directions. At the end of the stroke, the downstream roller is forcibly driven by the jamming cam, but it will no longer cause

organ 280C.

  In other words, the driving range of the intermediate member 280C is small while that of the cam 130C is the same as the opening range of the door:

about 90 or more.

  For the opening movement of door P, the roller 290C is the upstream roller (neutral) and the roller 291C

is the downstream roller (active).

  For the closing movement, the function of

rollers is reversed.

  FIG. 10A corresponds to the close position

  ture Po of the door. The roller 271C is applied against the ramp 244C of the locking cam 245C. In this position, the declutching arm 241C is applied against the external periphery of the declutching cam 140C so that cam C prevents any pivoting of the clutch arm 241C in the direction of action of the spring 242C: during the entire stroke of rotation of the door (P), i.e. of the 11OC axis in

* the direction of the arrow C1, as long as the cam

  140C clutch retains the 241C clutch arm, the

  240C notch and 245C notch cam cannot

  asshole. The peripheral length of the declutching cam 140C is chosen to prevent the notching cam 245C

  hangs the roller or axle 271C in a small angular range

  initial area from the position shown in figure

  gure lOA. This angular range is preferably equal to 20

  from the door closed position.

  Thus the axis 271C, driven by the rotation of the intermediate member, itself driven by the axis 110 in the direction of the arrow C1 (via the rollers

  290C, 291C), can pass in front of the notch 243C without

  votement the cam 245C rocks and hooks the axis 271C with the notch 243C; axis 271C can thus enter it to reach

the second ramp 246C.

  In this angular range there will be no re-

  holding the door P by hooking the axle 271C in the notch 243C. The door can be opened and closed as if

  it was not equipped with a door stop.

  This movement is shown in Figure 0lB and ends in Figure 10C. (Pi position marking the end of the

initial angular range).

  The position of the declutching cam 140C represents

  shown in Figure 10C is just at the end of the arm

  241C clutch. If the rotational movement in the direction of the arrow C1 continues slightly, then the declutching arm 241C is no longer retained and the spring 242C can push it in the direction of the arrow C2, in the same direction as that of the

  arrow C1 and tilt the catch member 240C.

  This is the movement of the door beyond

the initial range of 20.

  This situation is represented in FIGS. 10D,

10E, 10F.

  According to FIG. 10D, starting from the position of

  closing Po, the door P is opened up to the position Pi, if-

  killed beyond the position Pl limit of the initial range.

  This opening movement is made up of movements already

  crits about Figures lOA-10C: - the cam 130C drives the intermediate member 280C carrying the axis 271C. The latter passes from the ramp 244C to the ramp 246C of the locking cam 245C retained in position by its arm 241C itself retained by the declutching cam

140C

  the intermediate member 280C remains retained in its end-of-travel position, the axis 271C then being applied against the ramp 246C in the position shown in FIG. 10C,

  - then by pivoting the cam 140C releases the arm 241C but this -

  it cannot respond to the action of the return spring 242C since the notching cam 245C is pressed against the axis 271C which remains stationary, the rotational movement of the door P, of the axis 110OC of

  cam 130C continues without effect on the intermediate member

  diary 280C, - when door C arrives in position Pi, it has not yet stopped,

  - from this position Pi, if the door pivots very slightly

  gerely in the opposite direction (direction of closing of the arrow F), the active roller 290C (downstream roller for this direction of movement) then drives, by the ramp 284C, the intermediate member 280C in the same direction so that the axis is then opposite the notch 243C and the cam 245C can pivot, pushed by the spring 242C to "catch" the axis 271C (it should be emphasized that this

  moves on an arc centered on the axis 110OC, ZC).

  - when the notch 243C has thus imprisoned the axis 271C, this-

  this is retained. I1 itself retains the door P by means of the kinematic chain formed by the intermediate member 280C, the rollers 290C, 291C, the jamming cam 130C and the axis 11OC to which the door P is fixed. This position is the same as shown

in Figure 0lB.

  - from this Pi stop position, you may want to close the door or open it even more. In both cases it is necessary to overcome an antagonistic couple exerted by the cam

  catch 245C and its spring 242C on the axis 271C, solid

now go to door P.

  These two movements will be described below.

  A) Closing from the stop position Pi: The door P, pushed in the direction F, drives through the axis OC and the jamming cam 130C, the downstream roller 290C which immediately drives the intermediate member 280C and its axis 271C. The latter pushes against the side 2431C of the notch of the notch 243C and rotates the notching cam 245C until the axis 271C has come out of the notch 243C and is on the ramp 244C (in the same position as that

shown in Figure 10A).

  As the movement of gate P continues in

  the same direction, axis 271C is driven over a short distance

  tance, on the ramp 244C away from the notch 243C until the intermediate member 280C arrives in its position

limit switch and stops.

  - the door then continues its movement by forcibly driving the downstream roller-290C, - the tilting of the cam 245C in the position described above is such that the declutching arm 241C is released

  and then allow the free passage of the release cam

  clutch 140C when the door P reaches the closing position P1 at the start of the initial angular range,

  - the cam 140C can therefore pass freely without stopping against

  tre the front of the arm 241C as might suggest a rotation imagined for this cam in Figure 0lD, - the closing movement can continue until the

full closing position Po.

  B) Opening from the stop position Pi: - the door P is pushed in the direction of the arrow O through

  shot from the position of figure 10C, - but to move the door P it is necessary to exert a force transmitted by the kinematic chain: axis 110C, cam 130C, downstream roller 291C, intermediate member 280C, axis 271C, - the axis 271C presses then on the 2432C side of the notch 243C;

  - the inclination of the 2432C side of the notch is such that the

  sultante forces is directed relative to the axis 247C to tilt the notching member 240C counterclockwise, - the axis 271C continues to pivot and pushes the cam 245C to pass on the ramp 246C, beyond the notch 243C (FIG. 10E), then after a small additional pivoting, the intermediate member 280C arrives in its end position of

  race and stops. The door can continue to move.

  When door P stops, the different parts

  these occupy the position shown in Figure 10F.

  FIGS. 11A-11C show another variant,

  close to that of FIGS. 7A-7C and 8A-8C.

  The device comprises the parts of the embodiments of FIGS. 1 to 6 except that the intermediate member 280D includes a housing 283D receiving the wedging cam 130D and the rollers 290D, 291D cooperating with the cam and the ramp 284D; the 280D unit accommodates next to and between its

  two flanges 2811D, 2812D, a notching member 240D.

  The intermediate member 280D has an axis of

  notch 271D to cooperate with the notch member 245D.

  The latter is mounted by its axis 247D in the housings 274D, 274'D of the two plates 220D, 230D secured to the

  vehicle body. The axis 110D carrying the cam 130D is soli-

  door. The plates 220D, 230D are provided with orifices 222D, 232D forming bearings to receive the

parts 150D and 151D of the axis 110D.

  The notching member 240D is carried by the axis 247D provided with a return spring 242D bearing on the

220D, 230D plates.

  The notching member 240D forms a ramp 260D with a notch 263D in which the roller 271D can engage

  for the door stop position.

Claims (10)

R E V E N D I C A T I ON S   1) Door stop connecting a door to a body (coach-   rie) by allowing the door to be stopped in a posi-   Any opening, comprising a hinge pivot connected to one of the parts (door or box) and a housing connected to the other part (box or door), characterized in that - the pivot (100) , mounted to rotate freely in bearings (222, 232) of the housing, is provided with a wedging cam (130) in the form of a circular crown,   - the housing (200) crossed by the pivot (100), free in rotation   tation, receives the jamming cam (130) and comprises * an intermediate member (280) which can pivot freely on the jamming cam (130) in the housing and provided   * an orifice (283) formed by a bore opening out laterally   in order to receive in rotation the wedge cam   ment (130), * of a double ramp opposite the opening of the bore (283) and parallel to the axis (ZZ) of the pivot (100) for   form two wedge wedges of opposite orientation   with the surface of the jamming cam (130), * two jamming rollers (290, 291), placed with play in the two wedging dihedrons, and applied   elastically at the bottom of the dihedrons against the wedge cam   cement (130) and the wedge ramp (284), * a notching means (271, 260, 263), associated with the intermediate member (280) and the housing (200, 220, 230) to elastically retain the intermediate member (280) in a neutral position relative to the housing and recall it in this position, * a loosening lug carried by the housing in a   position such that it meets one or other of the rou-   jamming waters (290, 291) after the release of the   notching means to loosen the wedge roll   upstream in the direction of relative rotation and released   rer the wedging cam (130) (axis 110).   2) door stop according to claim 1, characterized in that the notching means comprises - a notching member belonging to the intermediate member (280) (or the housing), - a notching ramp (263) carried by the case (or the intermediate member 280) opposite the notching member (271) defining a path of movement of the notching member during the relative pivoting of the axis (110) / case   (220, 230) with a notch (263) to define the new position   be. 3) Door stop according to claim 2, characterized in that   the notching member (271) is an elastic sliding shoe   ment in a guide path (282).   4) Door stop according to claim 2, characterized in that   the notching member comprises a support (276A) provided with a   let (271A) and pivotally mounted in the intermediate member (280A),   the support (276A) belonging to the intermediate member (280A)   and the ramp (263A) belonging to the housing (220A, 230A).   5) Door stop according to claims 2,   characterized in that the ramp (260B) belongs to the intermediate member (280B) and the notching member is formed by a support (276B) provided with a roller (271B), this support being pivotally mounted   (273B, 273'B) in the housing (220B, 230B).   6) Door stop according to claim 2, characterized in that the ramp (245C, 260D) is pivotally mounted on the housing (220C, 230C, 220D, 230D) and the notching member (271C, 271D)   is carried by the intermediate member (280C, 280D).   7) Door stop according to claim 6, characterized in that the intermediate member (280C) is formed of two yokes between   which tilt the ramp (240C, 245C, 260D).   8) Door stop according to claim 1, characterized in that it comprises a means for disengaging the notching means in a certain pivot range, in particular the initial range from one of the end-of-travel positions and in particular a   range from 0 to 20 (especially from the close position ture).   9) Door stop according to claim 8 taken in combination   naison with claim 3, characterized in that the declutching means is a declutching cam (140) carried   by the axis (110) and a lock (270) connected to the notch member   stage (271) is provided with a lug (275 ') to cooperate with the declutching cam (140) and to retain the notching member (271) recessed with respect to the ramp (260) and prevent it from   penetrate the notch (263) during the entire pivoting phase   relative ment corresponding to the declutching range.    ) Door stop according to claim 6, characterized in that the ramp (245C, 240C) is extended by an arm (241C) to cooperate with a declutching cam (140C) carried by the axis (110C) to neutralize the action of the locking means during the initial phase of the relative rotational movement between the   pivot (110) and the housing (220, 230).   11) Door stopper according to claim 1, characterized in that it comprises a balancing means comprising a balancing cam (120) carried by the axis (110) and a balancing roller (250) mounted to slide ( 251) in a housing (243) of the housing against the action of a return spring (245) which presses it against the balancing cam (110, 120, 122, 123). 12) Door stop according to claim 11, characterized in that - the housing (243) is formed by a guide bracket (240), - the roller (250) is rotatably mounted in a support (251)   sliding in the guide bracket (240) with interposi- tion of the spring (245).   13) Door stop according to claims 11 and 12,   characterized in that the balancing means comprises: - a lower plate (210) and an intermediate plate (220) belonging to the housing (200) and between which the stirrup (240) is placed,   - each plate having a housing (212, 222) forming the pa-   link of rotation for two zones (150, 151) of the axis (110)   on either side of the balancing cam (120).