WO2007076912A1

WO2007076912A1 - Mechanical door stop for doors, in particular vehicle doors

Info

Publication number: WO2007076912A1
Application number: PCT/EP2006/011643
Authority: WO
Inventors: Thomas Lange; Hans Scharenberg; Hermann Krautkrämer
Original assignee: Thomas Lange; Hans Scharenberg; Krautkraemer Hermann
Priority date: 2006-01-04
Filing date: 2006-12-05
Publication date: 2007-07-12
Also published as: EP1951977A1; EP1951977B1; EP1951977B8; DE102006005495A1; ATE430241T1; DE502006003637D1

Abstract

Mechanical door stop (1) for doors, in particular vehicle doors, comprising - a housing (2), which forms an axial element (5), - a frictional element (6), which is retained in a stationary manner on a carrier (4) and has a frictional surface (7), - a pressure-exerting element (23), which is guided in the housing (2) such that it can be adjusted along the axial element (5), - a compression spring (26), which is accommodated in the housing (2), is supported by one end (27) against the pressure-exerting element (23) and by its other end (28) against an abutment 29 secured on the housing (2), and has an aperture (8) between the pressure-exerting element (23) and the carrier (4), the aperture running transversely to the axial element (5), - and an elongate slide (9), which is guided through the aperture (8) between the frictional element (6) and the pressure-exerting element (23), transversely to the axial element (5), has a first end (11) serving for connection to the motor vehicle, has a free second end (12), has a planar contact surface (13), which is in contact with the frictional surface (7) of the frictional element (6), has a catch-free supporting surface (114), directed away from the contact surface (13) and with the pressure-exerting element (23) supported against it, can be adjusted between the frictional element (6) and the pressure-exerting element (23), transversely to the axial element (5), and can be pivotably adjusted in the aperture (8) about the axial element (5).

Description

Mechanical door lock for doors, in particular vehicle doors

description

The invention relates to a mechanical door lock for doors, in particular vehicle doors.

EP 1 588 007 A1 (and the corresponding DE 103 02 549 A1 or US 2006/0207058 A1) describes a mechanical door stop for a motor vehicle door, which comprises a housing constructed in particular of two identical tubular housing sections, wherein a transverse passage between the housings is formed, through which an elongate slider or an elongated Hal- testange is passed.

In at least one of the housing sections, a pressure element is guided displaceably with a rib-like Beaufschlagungsende against the force of a compression spring. The slider is along its extension between a first end, with which it is for example fixed to a frame for the door, for example, the A-pillar, a motor vehicle, provided up to an end stop at its second end at intervals with depressions, in the at Adjustment of the slider to the pressure element, resulting from the opening or closing of the vehicle door, the rib-like urging end of the pressure element engages, so as to fix the vehicle door in predetermined positions. In order to move the vehicle door out of this position, it is necessary to apply such a large force by hand that the pressure element can leave the locking position. Depending on the position from which the motor vehicle door is to be operated by a person, this can be disturbing. It is also not desirable in tight parking spaces or close to an obstacle that the door is pressed, for example, to a larger opening angle, that the pressure element with its rib-like loading end comes close to a detent recess engages in this and the vehicle door due undetectable against the adjacent parked vehicle or another obstacle abuts.

The object of the invention is therefore to provide a mechanical door lock which directly holds a door in any position in which it has been transferred by hand and which leaves a sufficiently large opening area, for example to allow access to or exit from the vehicle. ie without the door leaving this position.

This object is achieved according to the invention by a mechanical door lock for doors, in particular vehicle doors, comprising

a housing forming an axle; a friction element;

is held stationary on a carrier, and has a friction surface,

- a pressure element that

- Is guided adjustably in the housing along the axis, - a compression spring, the

- is accommodated in the housing,

- Is supported with one end against the pressure element and with its other end against a fixed to the housing abutment

has a transverse to the axis passage between the pressure element and the carrier,

- an elongated slider, the is passed transversely to the axis through the passage between the friction element and the pressure element,

- has a first end that serves for connection to the motor vehicle,

having a free second end, having a flat contact surface which is in contact with the friction surface of the friction element,

- Has a contact surface facing away from the restless support surface against which the pressure element is supported,

- Is adjustable transversely to the axis between the friction element and the pressure element,

- Is pivotally adjustable in the passage around the axis.

An advantage of this design is that the slide in conjunction with the friction element and the pressure element and the pressure spring acting thereon can be designed so that in each case for the open position of the door, the holding force is provided, which is required to the door hold or allow easy closing or initial opening of the door.

The fact that the slide is formed without a detent, is also achieved that Ie- diglich each stiction is overcome and not beyond the force of the compression spring, which, as is the case in the prior art, re-biased from each locking position out must become. A major advantage, however, is also that the acceleration effect, which are provided in door arresters, in which locking positions and which occurs in that the door approaches a detent position and is pressed into it, so that there is a risk that the door against a Obstacle strikes, without this being wanted, no longer exists. The spring releases such a movement of the door by relaxation when entering the depression. A secure locking is possible in the prior art only at the locking positions. Depending on the position out of which a person wishes to open or close the door, it may be uncomfortable to overcome the latching position in each case because additional effort is required. In particular, the invention provides a door arrester in which a fixed Position of the door on its opening or closing path at a freely selectable position.

It is also ensured that, for example, when wind or at a position of a vehicle down the slope, the resulting gravity does not cause the door leaves the desired position.

Although the thickness of the slider can be constant, a particularly favorable embodiment provides that the distance between the support surface and the flat contact surface changes across the relative travel of the slider transversely to the axis and comprises at least two support regions whose distance from the contact surface is different, wherein the distance in the first support region of the support surface, which corresponds to a movement range of the door toward its closed position, is lower than in the second support region of the support surface, which corresponds to an opening region of the door, when it approaches its maximum opening angle. In addition, an interpretation of the distance between the contact surface and the support surface in the various support areas can be such that a user receives an accurate feedback on the position of the door on the applied force.

It is thus provided a small area, which allows a safe closing of the door without special effort, in which a secure engagement of the locking elements is provided for locking the door. For this purpose, the first support area of the support surface of the slider is used. The same applies initially to facilitate opening the door from its closed position. In order to achieve this effect, it is provided in particular that the distance in the first support region of the support surface is dimensioned such that the application of pressure by the pressure element produces a frictional force that tends to zero.

In an embodiment of the invention, it is provided that between the first support region and the second support region of the support surface, a transition region connecting both is provided on the support surface. This ensures that a smooth transition to the second support region is created, in which preferred an exact positioning of the door in every possible opening position should be possible.

In order to achieve a fine adjustment to the desired conditions or to provide compensation in the course of the period of use, it is provided that the abutment with an external thread in an internal thread of the housing for changing the bias of the compression spring along the axis is adjustable.

Preferably, the friction element is fixed to the carrier. The material of which the friction element consists can be selected according to the desired coefficient of friction.

To ensure that the abutment does not leave its once set position, securing means can be provided with which the abutment can be fixed relative to the housing.

To relieve the hinges of a vehicle, i. to prevent the door from reaching the stop defined by the hinges, it is provided that the slider has at its second end an end stop limiting its relative movement to the housing.

Preferably, it is also provided that the pressure element is supported with a convex surface on the contact surface of the slider. It is favorable if the support surface is at least partially designed as a concave groove in which the pressure element is supported with its convex surface. As a result, namely a lateral alignment, ie centering of the slider is achieved in relation to the support element. It is favorable if the pressure element consists of a plastic which, for example, provides a low frictional resistance. The actual friction connection is provided between the friction element or its friction surface and the contact surface of the slider. The pressure element should only apply the required pressure force to produce the desired adhesive bond via the frictional engagement between the slide and the housing. Another possibility of transmitting the compressive force on the slide or on the support surface of the slide is that on the pressure element, a roller bearing or a roller are mounted, whose outer surface serves as a bearing surface for support on the support surface of the slide. However, it should be ensured that the orientation of the rolling bearing with respect to its axis of rotation to the extension direction of the slider is such that both are perpendicular to each other. However, since the slide pivots in the opening of the housing about the axis of the housing, it makes sense, for example, the support surface as part of a rectangular groove extending along the slide represent, and that the bearing outer ring of the bearing is guided laterally in this groove and the slider, the pressure element with the roller bearing undergoes a rotational movement about the axis of the housing. This ensures that, in all rotational positions of the slide about the axis in each case a rolling of the rolling bearing is ensured and no sliding portion, which could lead to a jamming, occurs. The effects of the rolling bearing would be lifted if this is not guaranteed.

In an embodiment of the invention holding means are also provided, which frictionally sets the slide in its end position, which corresponds to the outer surface of the housing approximate position of the end stop. This should additionally be provided a mechanical fuse. The fact that these holding means are provided outside the support surface of the slider, it is possible to prevent an acceleration of the door to the closed position, if, as explained below, a third support area is provided for cushioning. It is possible that the end position can not be left.

Finally, it is possible to connect in the direction of the stop to the second support region, a third support region at which the distance increases again compared to that in the second support region. As a result, a cushioning can be achieved. It prevents, for example, under adverse circumstances, the door runs hard on the end stop. Convenient for the support of the carrier, when it is connected to the housing.

Two preferred embodiments and modifications thereof are shown schematically in the drawing.

It shows

1 shows a section through a preferred embodiment of a mechanical door locking plate,

2 shows a section H-II to Figure 1,

FIG. 3 shows a detail relating to the end stop of the slide,

FIG. 4 shows in detail a section IV-IV, which shows a support surface designed as a groove for the pressure element,

Figure 5 shows an embodiment of a detail relating to the arrangement and design of retaining means which secure the slide in its end position relative to the housing, and

FIG. 6 shows a modified embodiment of a mechanical door arrester relative to the mechanical door arrester according to FIGS. 1 to 3.

Hereinafter, the figures 1 to 4 will be described together for the mechanical door lock 1 in a first embodiment.

The door lock 1 comprises a housing 2, which is tubular and to which a mounting flange 3 is attached. The fastening flange 3 serves, for example, for attachment to a pillar of a motor vehicle, to which the door also attaches. is, for example, on an A-pillar.

The housing 2 forms a vertical axis 5. It is at one end by a support 4, which is also designed as a lid and can also be connected to the mounting flange 3, closed. On the carrier 4, a friction element 6 is supported from a friction material. Immediately below this closed by the carrier 4 area is a transverse to the axis 5 extending through 8, as can be seen in particular from Figure 2. Furthermore, a slider 9 is present, which is elongate and represents a holding element, which is connected, for example, with a door of a motor vehicle. For this purpose, for example, a bore 10 is provided at a first end 11 of the slide 9. The slider 9 terminates at a second end 12, which may be associated with an end stop 19, for example. In the area between the first end 11 and the stop 19 at the second end 12 of the slide 9 forms a flat contact surface 13. With this, the slide 9 is supported on the friction surface 7 of the friction element 6 from.

On the side facing away from the contact surface 13, a support surface 14 is formed, the course of which preferably changes between the first end 11 and the end stop 19 at the second end 12. Thus, the first end 11 toward a first support portion 15 is provided, which is designed as a flat surface and substantially parallel to the contact surface 13 and that with a constant distance A. It is further provided a second support portion 16 in which the distance A compared to that in the region of the first support area 15 is increased. But also in the second support region 16, the support surface 14 extends substantially parallel to the contact surface 13. Between the first support region 15 and the second support region 16 is a transition region 17, which for a slow increase, starting from the predetermined by the first support region 15 Level ensures the predetermined by the second support portion 16 level.

A third support region 18 can adjoin the second support region 16 in turn toward the end stop 19, in which the support surface 14 extends at an increasing distance A, starting from the level predetermined by the second support region 16. From Figure 2 it can be seen that the width of the slider 9 is designed so that, since the carrier 4 is connected to the housing 2 by webs, to the boundary surfaces of the passage 8 is a free space created by a pivoting movement of the slider 9 to the axis 5 of the housing 2 allows. Such a pivotal movement results for example from the pivotal movement of the door, with which the slide 2 is connected. However, it is also possible to connect the carrier 4 only with the mounting flange 3 or to make it integral with this

The end stop 19 at the second end 12 may, as shown in Figure 3, have a concave stop surface 21, said stop surface 21 of the outer surface 20 of the tubular housing 2 is adjusted.

The housing 2 preferably has a substantially cylindrical inner surface 22. Along this inner surface 22, i. along the axis 5 of the housing 2, a pressure element 23 is adjustably guided in the same. This pressure element 23 has on the slide 9 side facing a contact surface 25 which is adapted to the shape of the support surface 14. It is favorable, for example, a design, as shown in Figure 4, in which the support surface 14 of the slider 9 at least over one of the above areas, namely the support portions 15, 16, 18 and the transition region 17 is designed channel-shaped and the contact surface 25 of the Pressure element 23 this is either adapted, so that a two-dimensional contact is made or at least designed so crowned that the trough shape is adapted to a line contact is effected.

Preferably, this pressure element 23 consists of a low-friction plastic. The pressure element 23 also has a recess 24 on its side facing away from the slider 9. In this recess 24 engages a compression spring 26 with its first end 27 a. The other end 28 of the compression spring 26 is supported against an abutment 29, which is designed in the form of a screw and is provided with an external thread 30. With this external thread 30, the abutment 29 is in an internal thread 31 in the end facing away from the lid 4 of the tubular Ge Housing 2 screwed. With this abutment 29, a bias of the compression spring 26 can be adjusted using the external thread 30 and internal thread 31. The position of the abutment 29 in the internal thread 31 can be achieved by a locking screw 32, which causes jamming.

The pressure force applied to the pressure element 23 by the pressure spring 26 can be adjusted such that, for example, the lowest possible frictional force is generated in the first support region 15, the first support region 15 corresponding to the region within which a slight opening and closing of the door without force is achieved. effort is possible. In the area defined by the second support portion 16, it is possible to actually fix the door at any position without requiring notches. Towards the end stop 19, the movement is then attenuated via the third support region 18, because the rise, i. the change of the distance A, the compression spring 26 must be further biased. The opening movement of the door is thereby damped until the end stop 19 comes to rest on the housing 2. In order to provide a backup in this end position, for example, the holding means 34 shown in Figure 5 are provided which comprise a locking system. For this purpose, a spring-loaded detent ball is held, for example, in a recess of the end stop 19, which is brought to a recess in a projection 35 on the outside of the housing 2 in engagement. The approach may preferably be designed as an attached to the outer surface 20 of the housing 2 ring segment having a groove extending over a circular arc about the axis 5 as a recess.

FIG. 6 has an embodiment differing in particular from FIGS. 1 to 3. The differences are described below. The arguments and modes of action similar to those of Figs. 1 to 4 will not be described in detail. In FIG. 6, for components or sections which correspond to those in the embodiment according to FIGS. 1 to 4, position signs are selected, which are increased by the numerical value 100 relative to those used in FIGS. 1 to 4. For a description of these components and sections, reference is made to the description of Figures 1 to 4. An essential difference in the case of FIG. 6 compared with the embodiment described above is that the pressure element 123 serves to mount a rolling bearing 33 in the case of the lock 101. This rolling bearing 33 is supported by the outer surface of its bearing outer ring, which forms the contact surface 125, on the support surface 114 of the slider 109 from. In order to ensure that no sliding movement occurs due to the pivoting movement, which the slide 109 relative to the housing 102 performs about the axis 105, the support surface is similar to Figure 4 designed as a groove, but it has a rectangular cross section, wherein the Outer ring of the rolling bearing 33 is guided in this groove between the lateral boundary surfaces of this groove. If the slider 109 now carries out a pivoting movement about the axis 105, then the pressure element 123 is forcibly pivoted about the roller bearing 33 about the axis 105, so that the orientation of the rotational axis of the rolling bearing 33 at right angles to the extension of the support surface 114 between the first end 111 and the second end 112 is maintained and thus a rolling movement is possible.

Mechanical door lock for doors, in particular vehicle doors

LIST OF REFERENCE NUMBERS

1, 101 door lock

2, 102 housing

3, 103 mounting flange

4, 104 carriers

5, 105 axis

6, 106 friction element

7, 107 friction surface

8, 108 breakthrough

9, 109 pushers

10, 110 bore

11, 111 first end

12. 112 second end

13. 113 contact surface

14. 114 support surface

15, 115 first support area

16. 116 second support area

17. 117 Transition area , 118 third support area, 119 end stop, 120 outer surface housing, 121 stop surface, 122 inner surface of the housing, 123 pressure element

Recess, 125 contact surface, 126 compression spring, 127 end, 128 end, 129 abutment, 130 external thread, 131 internal thread, 132 locking screw

roller bearing

holding means

approach

Claims

Mechanical door lock for doors, especially vehicle doorsPatent claims

1. Mechanical door lock (1, 101) for doors, in particular vehicle doors, comprising

- A housing (2, 102), the

an axle (5, 105) forms, a friction element (6, 106), the

- Is held stationary on a support (4, 104), and a friction surface (7, 107),

- A pressure element (23, 123), the

- Is guided adjustably in the housing (2, 102) along the axis (5, 105),

- A compression spring (26), the

- is accommodated in the housing (2, 102),

- is supported with one end (27) against the pressure element (23, 123) and with its other end (28) against a on the housing (2, 102) fixed abutment (29),

a passage (8, 108) running transversely to the axis (5, 105) between the pressure element (23, 123) and the support (4, 104),

- An elongated slide (9, 109), the - Transversely to the axis (5, 105) through the passage (8, 108) between the friction element (6, 106) and pressure element (23, 123) is passed,

a first end (11, 111) which serves for connection to the motor vehicle,

a free second end (12, 112),

a flat contact surface (13, 113) which is in contact with the friction surface (7, 107) of the friction element (6, 106),

- one of the contact surface (13, 113) facing away from detent-free support surface (14, 114) against which the pressure element (23, 123) is supported,

- between the friction element (6, 106) and the pressure element (23, 123) transversely to the axis (5, 105) is adjustable,

- In the passage (8, 108) about the axis (5, 105) is pivotally adjustable.

2. Mechanical door stop according to claim 1,

wherein the distance (A) of the support surface (14) to the flat contact surface (13) changes across the relative travel of the slider (9, 109) transversely to the axis (5, 105) and at least two support regions (15, 16, 18; 116, 118) whose distance (A) to the contact surface (13, 113) is different, wherein the distance (A) in the first support region (15, 115) of the support surface (14, 114), the movement range of the door to whose closed position corresponds to, is less than in the second support region (16, 116) of the support surface (14, 114), which corresponds to an opening portion of the door at which it approaches its maximum opening angle.

3. Mechanical door lock according to claim 2,

characterized,

in that between the first support region (15, 115) and the second support region (16, 116) of the support surface (14, 114) there is a connecting transitional element rich (17, 117) on the support surface (14, 114) is provided.

4. Mechanical door check according to claim 2,

characterized,

in that the distance (A) in the first support region (15, 115) of the support surface (14, 114) is dimensioned so that the application of pressure by the pressure element (23, 123) produces a friction force that tends to zero.

5. Mechanical door check according to claim 1,

characterized,

in that the abutment (29, 129) has an external thread (30, 130) in an internal thread (31, 131) of the housing (2, 102) for changing the pretensioning of the pressure spring (26, 126) along the axis (5, 105). is adjustable.

6. Mechanical door lock according to claim 1,

characterized,

in that the friction element (6, 106) is fixed to the carrier (4, 104).

7. Mechanical door lock according to claim 5,

characterized,

in that the abutment (29, 129) can be secured by securing means (32, 132) relative to the housing (2, 102).

8. Mechanical door check according to claim 1,

characterized,

in that the slide (14, 114) has at its second end (12, 112) an end stop (19, 119) which limits its relative movement to the housing (2, 102).

9. Mechanical door lock according to claim 1,

characterized,

the pressure element (23) is supported by a convex surface (12) on the support surface (25) of the slide (9).

10. Mechanical door stop according to claim 9,

characterized,

that the support surface (14) is designed at least in sections as a concave groove.

11. Mechanical door check according to claim 1,

characterized,

that the pressure element (23) consists of plastic.

12. Mechanical door stop according to claim 1,

characterized,

in that a roller bearing (33) or a roller is mounted on the pressure element (123) whose outer surface serves as a contact surface (125) for supporting on the support surface (114) of the slide (109).

13. Mechanical door lock according to claim 1,

characterized,

in that holding means (34) are provided which frictionally fix the slide (14) in its end position corresponding to the position of the stop (19) which approximates the outer surface of the housing (2).

14. Mechanical door check according to claim 1,

characterized,

in that the distance (A) in a third support region (18, 118) adjoining the second support region (16, 116) increases or increases in relation to that in the second support region (16, 116).

15. Mechanical door check according to claim 1,

characterized,

in that the carrier (4, 104) is connected to the housing (2, 102).