JP2002520518A - Door stop - Google Patents

Abstract

The invention relates to a doorstop for a motor vehicle, comprising a pin (2) forming a rigid door retaining element, a nut (5) assigned to the pin (2) and a braking and locking device assigned to the nut (5). The braking and locking device assigned to the nut (5) is embodied by a longitudinal section of a braking member which can be subjected to the action of a drive element embodied by a brake lever (7), whereby said longitudinal section is situated on the external circumference of the pin (5) which is rotationally driven in accordance with the pivoting movement of the door. A lock shifting eccentric (8) which is held in the interlocking direction by a spring load (10, 11) and can be released depending on the movement of a door is assigned to the brake lever (7) as a release device in such a way that when the door is not moving the brake lever (7) is held by the action of the spring in its position corresponding to the actuated brake or is moved into said position. The invention aims to provide a doorstop which, in a more compact embodiment, reacts to the movement situation of the door by producing a sufficient braking and retaining force which is independent of an electrical system. To this end the rotationally mounted nut (5) is housed in a housing positioned at the level of one of the door assembly parts and a mechanical device is provided for which from the movement of the door derives the displacement movement for the lock shifting eccentric (8) which moves the brake lever (7) against the spring load into the position corresponding to the released brake.

Description

DETAILED DESCRIPTION OF THE INVENTION

The invention relates to a door stop according to the preamble of claim 1 for a motor vehicle, said door stop forming a rigid door holding element, which pivots about an axis parallel to the door hinge axis. A spindle coupled to one door assembly part, door or door pillar in a possible manner, and a rotatably mounted assigned to the spindle and arranged in a fixed door stop housing on the other door assembly part. A brake nut and a brake and lock device assigned to the spindle nut, wherein the brake and lock device assigned to the spindle nut is formed by a cross-sectional length of a brake cable or a brake band, and the cross-sectional length is determined by a door turn. Spins driven in a manner that rotates as a function of dynamic motion Leaning against the outer circumference of the dollar, the brake cable or brake band is connected at both ends to a drive element formed by a brake lever, or the device is formed by a brake element operable by such a drive element, An adjustment cam or adjustment eccentric, which is held in the direction of engagement and is releasable as a function of the desired door movement, holds the door lever in its position corresponding to the tightened brake when the door is stationary, under spring load Disengaging device in such a manner as to be released or moved to this position.
vice) to the brake lever.

[0002] DE-A-44 35 720 describes an infinitely variable motor vehicle door stop, in which a device which is activatable and actuated by an auxiliary force drives a braking and locking device. Provided to activate the auxiliary force to drive the brake, as a function of the opening or closing force acting on the door, or optionally as a function of other reference variables for assessing the movement of the door Designing a device that operates reasonably reliably and at the same time is sufficiently sensitive is initially expensive. In addition to the motor device for generating sufficient assisting force to drive the brake and locking device, this known type of infinitely variable vehicle door stop also adds considerable electrical and electronic installation costs. I need. As mentioned above,
Infinitely variable vehicle door stops of the known type are therefore costly to assemble, install and maintain.

[0003] DE-A-41 30 782 describes an infinitely variable motor vehicle door stop driven by electric assistance, but its assembly is likewise costly.

[0004] DE-A-42 09 876 describes an infinitely variable motor vehicle door stop driven by an electric assist, but its assembly is likewise costly.

An object of the present invention is a door stop according to the preamble of claim 1, which, despite its small construction, reacts to the movement of the door and reacts with sufficient braking and holding power independent of the electrical components. Is to provide a door stop.

With regard to the door stop mentioned at the outset, the object is achieved by the features of claim 1, ie, a rotatably provided spindle nut is housed in a housing arranged on one of the door assembly parts and is mechanically An arrangement is provided in which a device is provided for inducing, from the door movement, an adjusting movement for the adjusting cam or adjusting eccentric which brings the brake lever in its direction corresponding to the released brake in the direction opposite to the spring load. Achieved according to the invention.

[0007] Due to the configuration of the brake and locking device, including the brake, on the vehicle door, a modified structure of the brake lever or of the brake and locking device, starting from the door movement, specifically the action of the force on the door. In this case, it is possible to directly guide the adjusting movement of the brake itself, which adjusting means can be used for this purpose, such as costly sensor arrangements and the likewise expensive means of generating auxiliary forces. It is suitable for releasing the brake without being required. At the same time, it also has the advantage that the door stop is continuously ready for operation, since it is independent of the vehicle electrical system. Specifically, a small portion of the force acting on the door to move the door in the desired manner is converted to driving force and releases the brake and locking device held in its holding position under the action of the spring force be able to. In addition, the configuration of the car door stop on the door means that the transmission of force outside the door stop housing is not required, so the device can advantageously be composed of a small number of simple parts, The whole can be accommodated in the door stop housing without the need for the latter to become too large.

[0008] The device for deriving from the door movement the adjusting movement or the adjusting force of the adjusting cam or the adjusting eccentric assigned to the release of the braking and locking device is preferably the door stop housing which comprises the braking and locking device. A housing part movable with respect to said part, a control nut housed in said housing part and interacting with a spindle, and connected downstream of said control nut and intended to generate a rotational movement of an adjusting cam or adjusting eccentric. Configuration.

In a convenient and simple embodiment, a rigid door-holding element or door-holding rod formed by a spindle is used to derive an adjusting force for the release of the brake and the locking device from a force acting on the door. The relative movement of the door or the door stop housing connected to the latter is used, the relative movement of the door holding rod with the locking rocker brake and the door being the door stop housing which accommodates the bearing configuration of the spindle nut Is supported on its two end sides by an elastically deformable housing area or an elastically deformable intermediate element in a manner displaceable within the door stop housing with respect to its fixed area. Will be possible.

[0010] In a further refinement of the device for inducing an adjusting force for the brake lever controlling the brake and locking device, it is further provided that the adjusting nut is provided by means of a coupling and a spur gear connected downstream, an adjusting cam or an eccentric The adjusting cam or adjusting eccentric is assigned to a brake lever which drives a band or a cable brake which interacts with the spindle nut. In particular, in this configuration, the joint connecting the control nut to the spur gear connected downstream can be further provided as formed by a viscous joint. However, in a modified embodiment, the joint connecting the control nut to the spur gear connected downstream can also be provided as formed by a friction joint. However, in each case, a spur gear that can be driven by the control nut using a downstream connected fitting is provided to include a step-up.

Taking into account that the interaction of the control nut with the rigid door holding element formed by the spindle generates torques with forces in different directions, depending on the direction of the door movement, According to the invention, the spring load assigned to the eccentric shaft with the adjusting cam or adjusting eccentric is applied by two sheet-wound spiral springs wound in opposite directions, the sheet-spiral springs being in each other and in the assigned part of the door stop housing. Further provided so as to be arranged concentrically with respect to the eccentric shaft of the eccentric shaft, advantageously two laminar spiral springs are drivingly connected to the eccentric shaft by drive pins radially oriented and inserted thereinto said shaft. And so on.
In another aspect, the two leaf spiral springs are each supported by their inner ends in an annular groove formed in the end wall of the assigned portion of the door stop housing.

The brake lever is preferably in driving connection with the adjusting cam or adjusting eccentric of the eccentric shaft by a tappet in a manner known per se.

In an advantageous refinement, finally, the part of the door stop housing which houses the locking brake assigned to the spindle nut is arranged between the front and rear parts of the door stop housing. It is further provided to be displaceably guided on a tie rod.

The housing of the door stop preferably fits entirely in the door body in such a way that it is pivotable about an axis parallel to the door hinge axis, irrespective of the particular shape of the locking device. The support, which is connected to the housing and is mainly vertically oriented, is held by a bearing journal,
One end is arranged in a bearing bracket having two bearing lugs correspondingly spaced.

[0015] Further advantages and features of the present invention will become apparent from the subclaims and the following description.

The present invention will be described in more detail below, utilizing the preferred exemplary embodiments, with reference to the accompanying drawings, in which:

The door stop of the vehicle shown in the exemplary embodiment is mainly connected to the door pillar 0a (shown in broken lines) and threaded in such a way that it is pivotable about an axis 1 parallel to the door hinge axis. A rigid door holding element designed as a spindle 2 and a brake and locking device penetrated by said door holding element and housed in a door stop housing 3 connected to the door 0b (indicated by dashed lines); The brake and locking device comprises a spindle nut 5 rotatably provided in a door stop housing 3 by an axial bearing 4 and a cable section length 6.
A brake and holding part formed by the brake lever 7, a brake lever 7 and an adjusting cam or adjusting eccentric 8 assigned to the brake lever 7.

The adjusting eccentric 8 interacts with the brake lever 7 by means of a tappet 12. The cross-sectional length 6 of the cable, which forms the brake and holding part of the locking device, loops around the spindle nut 5 and is fixed by its two ends 9 in the brake lever 7. The spring load acting on the brake lever 7 in the direction of engagement of the brake and locking device is applied by a pair of thin-plate spiral springs 10 and 11 housed in the lower part 13 of the door stop housing 3.

The door stop housing 3 is supported by a support 14,
The two ends of the support 14 are rigidly connected thereto and are oriented mainly vertically in such a way that they are pivotable about an axis 15 parallel to the door hinge axis in a bearing bracket 16 fitted in the door body. Are provided with correspondingly spaced bearing journals 18 of the bearing bracket 16 therethrough.

The door stop housing 3 of the locking device is a rigid part 19 which is immovably connected to the support 14 and is movable with respect to said part 19, with the brake cable 8 and the bearing arrangement of the spindle nut 5 and the brake lever 7. 20 for housing
And the part 20 of the door stop housing 3 that is movable with respect to the fixed part 19 is provided with cushions 21 and 22 made of an elastically deformable material, respectively, of the fixed part 19 of the door stop housing 3. The two ends of the movable part 20 of the door stop housing 3 are supported on the tie rods 23 which penetrate therethrough and connect the two areas of the fixed part 19 of the door stop housing 3 to each other against the inner end surface facing it. It is guided displaceably.

The control means for the release and engagement of the brake and locking device of the vehicle door stop comprises a control nut 25 engaged with the spindle 2 and rotatably provided in the front part 24 of the door stop 3, A pinion 27 which forms a pair of spur gears for achieving a step-up, with a viscous joint 26 connected downstream of the control nut 25 and a gear 29 driven by said joint and arranged on the front end of an eccentric shaft 28 And At its end 30 facing away from the gear 29, the eccentric shaft 28 carries an adjusting eccentric 8 which interacts with the brake lever 7. Two thin-plate spiral springs arranged concentrically about the eccentric shaft 28 in the part 13 of the movable part 20 of the door stop housing 3 interact with said shaft 28 by means of a drive pin 31 which can be seen in particular from the illustration of FIG. The pin 31 is formed by a straight pin inserted radially into the eccentric shaft. At the other end, two thin plate spiral springs 1
0 and 11 are the inner end walls 32 of the part 13 of the part 20 of the door stop housing 3
In the groove 33 formed in the thin plate spiral spring 10 or 1 in which the load is reduced, respectively.
1 is supported by its free end in such a way that it cannot apply any resetting force.

The manner in which the control means operates is as follows: by means of a force action on the door, whose magnitude corresponds to the desired movement but is independent of its direction, The movable part 20, which includes the brake and locking device, is displaced relative to the fixed part 19 of the door stop housing 3 by an amount corresponding to the size and elasticity of the cushions 21 and 22, so that the control nut 25 is , But the brake and locking device is still in its engaged holding position. The rotational movement of the control nut 25 thus provided is converted by a viscous coupling 26 into a driving torque of a pinion 27, which on its side realizes a rotational drive of an eccentric shaft 28 by a gear 29, The adjusting eccentric 8, which is arranged on the resulting eccentric shaft 28, pivots the brake lever 7 in its release position in the direction opposite to the leaf spiral springs 10, 11 acting on it, so that the operation of the brake and locking device is canceled. ,
As a result, the door can move freely. Conversely, at the door stop,
The combination of the spindle 2 and the control nut 25 reduces the torque generated during the movement of the door, so that the viscous joint 26 can no longer transmit a driving force to the pinion 27, and consequently the thin spiral spring 10 , 11, the eccentric shaft 28 and thus the adjusting eccentric 8 arranged on the latter, rotate the brake lever 7 to return to its position corresponding to the engagement position of the brake and locking device, so that the door is now It is again held stationary by the brake and locking device.

[Brief description of the drawings]

FIG. 1 is a perspective view, partially in perspective, of an exemplary embodiment of an infinitely variable vehicle door stop according to the present invention.

FIG. 2 is a longitudinal sectional view of the infinitely variable vehicle door stop of FIG. 1;

FIG. 3 is a cross-sectional view of the infinitely variable vehicle door stop, taken along line III-III of FIG. 2;

FIG. 4 is a partial cross-sectional view of the infinitely variable vehicle door stop, taken along line IV-IV of FIG. 2;

──────────────────────────────────────────────────続 き Continuation of front page (81) Designated country EP (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE ), OA (BF, BJ, CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG), AP (GH, GM, KE, LS, MW, SD, SL, SZ, UG, ZW), EA (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM), AE, AL, AM, AT, AU, AZ, BA, BB, BG, BR , BY, CA, CH, CN, CU, CZ, DE, DK, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS , JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, UA, UG, US, UZ, VN, YU, ZA, ZW. For this purpose, a rotatably mounted nut (5) is housed in a housing positioned at one level of the door assembly part, so that the mechanical device is protected from movement of the door. , Is provided at a position corresponding to the released brake to induce a displacement movement for the lock-shifting eccentric (8) that moves the brake lever (7) against the load.

Claims (14)

[Claims] 1. A door stop for a motor vehicle, wherein one of the door assembly parts forms a rigid door holding element, which is pivotable about an axis (1) parallel to the door hinge axis. A spindle (2) connected to the door (0b) or door pillar (0a); rotatably assigned to the spindle (2) and arranged in a fixed door stop housing (3) on the other door assembly part. Provided spindle nut (
5) and a brake and locking device assigned to the spindle nut (5), the brake and locking device assigned to the spindle nut (5) being formed by a cross-sectional length (6) of a brake cable or a brake band; A spindle (5) whose cross-sectional length is driven in a manner that rotates as a function of the door pivoting movement.
The brake cable or brake band is connected at both ends to a drive element formed by a brake lever (7), or the device is formed by a brake element which can be acted on by such a drive element; Furthermore, it is held in the direction of engagement by a spring load (10, 11) and when the door is stationary, the brake lever (7) is in its position corresponding to the brake tightened under the spring load (10, 11). A rotatable spindle nut (5) comprising an adjusting cam or adjusting eccentric (8) assigned to the brake lever (7) as a release device in such a way as to be held or moved into this position, The mechanical device is housed in a housing (3) disposed on one of the door assembly components, From moving, the brake lever (7) a spring-loaded (10, 11
Door stop, characterized in that it is provided for guiding an adjusting movement for an adjusting cam or adjusting eccentric (8) which comes in its position corresponding to the released brake, in the opposite direction to that of the released brake. 2. An adjusting cam or adjusting eccentric (8) from door movement.
A device for inducing an adjusting movement for the door stop housing (3), which is movable with respect to the part of the door stop housing (3) that contains the brake and locking device, is housed in said housing part. A control nut (25) interacting with the spindle (5) and an arrangement (27, 28, connected downstream of said control nut and intended to produce a rotational movement of the adjusting cam or adjusting eccentric (8);
29. The door stop according to claim 1, comprising: 3. The control nut (25) drives a band or cable brake (6) interacting with the spindle nut (5) by means of a joint (26) and a spur gear (27, 29) connected downstream. 3. Door stop according to claim 2, characterized in that it is in driving connection with an eccentric shaft (28) having an adjustment cam or an adjustment eccentric (8) assigned to the brake lever (7). 4. A control nut (25) is connected to a spur gear (27, 29) connected downstream.
4. The door stop according to claim 3, characterized in that the joint connecting (i) is formed by a viscous joint (26). 5. A control nut (25) is connected to a spur gear (27, 29) connected downstream.
4. The door stop according to claim 3, wherein the joint connecting the first and second parts is formed by a friction joint. 6. The spindle nut (5) of the door stop housing (3).
The housing part (20) which accommodates the bearing arrangement of (1) is provided by means of an elastically deformable housing area or an elastically deformable intermediate element (21, 22) with respect to its fixed area (19) with a door stop housing (19). 6. Door stop according to claim 1, characterized in that it is supported on its two end faces in a displaceable manner within 3). 7. A control nut (5) using a joint (26) connected downstream.
Door stop according to any of the preceding claims, characterized in that the spur gear (27, 29) drivable by means of a step-up. 8. The spring load assigned to an eccentric shaft (28) having an adjusting cam or an adjusting eccentric (8) has a spring wound in the opposite direction.
Provided by two thin-plate spiral springs (10, 11).
11) are assigned to each other and to the assigned part (1) of the door stop housing (3).
8. Door stop according to claim 1, characterized in that it is arranged concentrically with respect to the eccentric shaft (28) in (3). 9. The two sheet spiral springs (10, 11) are in drive connection with an eccentric shaft (28) by means of a drive pin (31) which is directed radially about said shaft and inserted therein. 9. The method according to claim 8, wherein
Door stop as described in. 10. The two sheet spiral springs (10, 11) each have an annular groove (33) formed in the end wall (32) of the assigned part (13) of the door stop housing (3). 10. The method according to claim 9, further comprising:
Door stop as described in. 11. The brake lever (7) is in driving connection with an adjusting cam or an adjusting eccentric (8) of an eccentric shaft (28) by a tappet (12). Door stop described in Crab. 12. The spindle nut (12) of the door stop housing (3).
The part (20) for receiving the locking brake, which is assigned to (5), is displaceably guided on a tie rod arranged between the front and rear parts of the door stop housing (3). The door stop according to any one of claims 1 to 11. 13. The door stop housing (3) in its entirety in such a manner that it is pivotable about an axis (15) parallel to the door hinge axis.
a) which fits in a) and which is connected to the door stop housing (3) and which is oriented mainly vertically, comprises two correspondingly spaced bearing lugs (17).
Door stop according to any of the preceding claims, characterized in that it is held in a bearing bracket (16) having a bearing journal (18) arranged at its two ends. 14. The brake and locking device according to claim 1, wherein the brake and the locking device allow an infinitely variable locking of the spindle (5) irrespective of the opening angle of the door. Door stop.