Two-roller swivel arm

Abstract

The present invention relates to a system with a wing (42) for closing an opening arranged in a frame. This system comprises: - a pivot arm (2) fixedly arranged on the frame and pivotable about a vertical axis (ZZ), the free end of which is guided on the wing (42) in a guide rail (20) extending along a longitudinal direction (XX) in an opening direction, and which, in a closed position of the wing (42), is oriented in a first position approximately in the longitudinal direction (XX) and, in an open position of the wing (42), in a second position approximately in a transverse direction (YY); - a deflection element (30) on the guide rail (20), which is designed and arranged in such a way that it causes the pivot arm (2) to pivot from its first position to its second position and causes the wing (42) to move in the transverse direction (YY);when the wing (42) is moved from the closed position to an open position and the free end of the pivot arm (2) contacts the deflection element (30), - a stop surface (30b) in the guide rail (20), which is designed and arranged such that the free end of the pivot arm (2) comes into contact with the stop surface (30b) when the wing (42) moves from the open position in the closing direction and causes the pivot arm (2) to pivot from its second position to its first position and the wing (42) to move in the transverse direction (YY).

Description

[0001] The present invention relates to a system with a leaf for closing an opening arranged in a frame. The invention essentially relates to a door system with a door leaf that can be moved from a closed position to an open position and back.

[0002] Such door systems are used particularly in rail-bound vehicles such as trams or trains, but they are also used in road vehicles such as buses.

[0003] For example, door systems are known in which the door leaf is moved out of the door opening and back into it via a rotating column. For door systems without a rotating column, for example, door systems with lateral locking, lateral rotary latch, or lockable pivot arm, a pivot arm with three rollers is usually used in combination with a sheet metal guide rail in the door leaf and coordinated kinematics. Due to the construction of the door system, there is a relative amount of play, which is why the door leaf does not swing in reliably in all installation situations. Any positional deviation of one of these components requires a new kinematic design and new components. Added to this is the relatively high level of wear and tear inherent in the system.

[0004] The object of the invention is to create a system with a leaf for closing an opening arranged in a frame, which can be used as an alternative to the already known door systems. The leaf should be able to be safely moved into its locked, closed position in as many vehicle positions as possible. Furthermore, the object is to propose a method for opening and closing an opening with a leaf.

[0005] The problem is solved by a system having the features of claim 1 and a method having the method steps of the independent method claim.

[0006] According to the invention, the system has the following components: a pivot arm which is fixedly arranged on the frame and pivotable about a vertical axis ZZ, the free end of which is guided on the sash in a guide rail extending along a longitudinal direction XX in an opening direction and which, in a closed position of the sash, is aligned in a first position approximately in the longitudinal direction XX and, in an open position of the sash, in a second position approximately in a transverse direction YY, a deflection element on the guide rail which is designed and arranged in such a way that it causes the pivot arm to pivot from its first position to its second position and the sash to move in the transverse direction YY when the sash is moved from the closed position to an open position and the free end of the pivot arm contacts the deflection element, a stop surface in the guide rail which is designed and arranged in such a way,that the free end of the swivel arm comes into contact with the stop surface when the sash moves from the open position in the closing direction and causes the swivel arm to pivot from its second position to its first position and the sash to move in the transverse direction YY.

[0007] In a particularly advantageous embodiment, the system is characterized in that: the swivel arm has a first roller and a second roller, which also each rotate about their vertical axis ZZ, the guide rail has a roll-off wall extending parallel to the main extent of the sash along the longitudinal direction XX and a stop surface arranged on a front end of the guide rail in the opening direction of the sash, in the opening direction of the sash at the front end of the guide rail and at the rear of the stop surface a stop wedge pointing in the opening direction is arranged as a deflection element, wherein the first roller is arranged outside the guide rail in such a way that it is arranged in front of the stop wedge in the opening direction when the sash is in the closed position, the second roller is arranged inside the guide rail behind the roll-off wall and rolls on the roll-off wall, the components of the system are arranged and aligned with one another in such a way that when the sash moves a.from the closed position in the opening direction, the first roller rolls on the stop wedge and causes the swivel arm to pivot from the first position to the second position, b. from the open position in the closing direction, the second roller comes into contact with the stop surface and causes the swivel arm to pivot from the second position to the first position.

[0008] In the particularly advantageous design variant with two rollers, these form the free end of the pivot arm. The two rollers are arranged next to each other along the longitudinal direction XX when the sash is in the closed position or in the first position of the pivot arm. As the outer first roller rolls on the stop wedge during the opening process and the inner second roller presses on the roll-off wall, the pivot arm pivots with the two rollers, which are then arranged next to each other in the transverse direction YY or slightly offset from each other during the opening movement and also in the open position. The roll-off wall, on which the inner second roller rolls during the movement of the sash, is moved between the two rollers as the sash moves.

[0009] The system according to the invention is extremely cost-effective because it consists of only a few components. Because the pivot arm causes the sash to move transversely through contact between its free end or the first roller on the deflection element or guide wedge, the entire movement is play-free. The same applies to the movement from the open to the closed position; the contact of the second roller on the stop surface causes a controlled pivoting of the pivot arm and thus the sash into the opening.

[0010] The axes of rotation of the two rollers are arranged parallel or at least almost parallel to the axis of rotation of the swivel arm.

[0011] Instead of rollers, it is also possible to use other types of sliding elements, although non-rolling sliding elements may increase the resistance during the movement process.

[0012] With conventional swivel arms or rotating columns, new kinematics are always required depending on the desired stroke, meaning the geometry must be changed accordingly. In the system according to the invention, however, the swivel arm can simply be positioned further inward or outward within the portal to cover the desired area, thus eliminating the need for new kinematics. The swivel arm can be moved inward or outward during planning or construction, almost without requiring adjustment of other components. In the closed end position, only the angular position of the swivel arm changes slightly.

[0013] The kinematics are therefore independent within stroke ranges between 50 and 80 mm, preferably between 54 and 74 mm. For example, with a length of approximately 7 cm (from the pivot point to the first roller), the pivot arm can be used with doors that have a lower leaf lift of between 50 and 80 mm when opening.

[0014] The guide rail can be integrated into the sash in such a way that the inner second roller is guided in a non-visible area. The guide rail can, for example, be painted in the same color as the sash to better integrate into the overall design.

[0015] A key feature of the invention is that the pivot arm is also indirectly pivoted by the wing drive. Therefore, it is not necessary to provide a separate drive for the pivot arm. The arm is automatically moved or pivoted along with the moving wing.

[0016] The system according to the invention is particularly suitable for use as a door system. The pivot arm(s) are attached to the door frame or door portal, and the door leaf is moved by the system according to the invention in the Y direction (usually the transverse direction of the vehicle) out of the door opening and then in the X direction along the vehicle's outer wall. During the closing process, the movement is carried out in the reverse direction and sequence. The system can be used for door systems with only one door leaf, but in particular also for door systems with two door leaves. The door drive is usually arranged above or below the door opening. The door leaves are moved, for example, via a spindle or rack drive.

[0017] The system is also suitable for other door types or windows. The system can also be used advantageously for roof hatches, for example, in mobile homes or caravans. In this case, the directions used in this description (X, Y, and Z) must be adjusted accordingly.

[0018] The essential elements of the guide rail can be constructed as a single piece or comprised of several individual elements. For example, the deflection element and the stop surface can be provided by separate components.

[0019] The guide wedge is a deflection element that temporarily redirects the force and direction of movement applied by the drive from the X-direction to the Y-direction, thereby parallelizing the sash. The sash is thus pivoted and then moved further along the X-direction. The guide wedge can have an inclined surface on its outer contour, on which the first roller rolls, but this can also be realized with a rounded, convex shape.

[0020] The system according to the invention also creates an over-center position in the open position, thus stabilizing the leaf in the open state. This over-center position is supported or caused by the leaf's own weight. This is achieved by a pivot point at the top of the drive. Due to the downward weight of the door leaf, it rotates around this pivot point, and the door leaf is held at the bottom close to the car body.

[0021] It is not possible to move the sash in the transverse direction YY without further pivoting the pivot arm. To do so, the deflection element must first be brought into the area of ​​the first outer roller so that it can move in the Y direction.

[0022] The invention is explained in more detail with reference to the following figures. These show only one particularly advantageous embodiment; the individual components can also be used independently of one another and / or in a different arrangement.

[0023] They show: Fig. 1: a system according to the invention in the open position, Fig. 2: a system according to the invention in the closed position, Fig. 3: a pivot arm according to the invention, Fig. 4: the pivot arm according to the invention in connection with a guide rail in the closed position from above, Fig. 5: the pivot arm according to the invention in connection with a guide rail in an intermediate position from above, Fig. 6: the pivot arm according to the invention in the open position from above, Fig. 7: a lift-out protection device for the sash in detail.

[0024] Fig. 1 shows the guide system in the open position or an intermediate position, Fig. 2 in closed position. A guide rail 20 is a direct part of a Figure 7illustrated wing 42 for closing an opening, which, when used as a door system, is preferably integrated into a corresponding door profile, i.e., the wing 42 not shown. The guide rail 20 thus moves with the wing 42 in the opening and closing direction, in the illustrated embodiment along a longitudinal direction XX.

[0025] A deflection element 30 is arranged at the end of the guide rail 20 in front of the guide rail 20 in the opening direction of the sash 42 and is preferably screwed into or onto the guide rail 20. The deflection element 30 thus forms the starting wedge, which causes the movement of a pivot arm 2 and thus also of the sash 42 out of the opening. In the illustrated embodiment, this is achieved via an arcuate, convex outer contour 30a.

[0026] The wing 42 moves from the Fig. 4shown first position (closed position) to the second position (open position) not only along the longitudinal direction XX, but also along a transverse direction YY. During the opening movement of the wing 42 in the longitudinal direction XX, the deflection element 30 is moved with its outer contour 30a against a roller 4a and, due to the convex outer contour 30a, the drive force acting on the wing 42 in the longitudinal direction XX is deflected into a force acting in the transverse direction YY, which moves the wing 42 out of the door opening. After the first roller 4a has passed the deflection element 30, the further movement of the wing 42 takes place again along the longitudinal direction XX.

[0027] To realize the pivoting movement or movement in the transverse direction YY, the pivot arm 2 is pivotally mounted on a base plate 10 by means of a bearing pin 3. The base plate 10 is fixed in position directly or via an additional adapter plate 15 to the frame or to the vehicle portal or door portal (not shown). The bearing pin 3 enables pivoting about a vertical axis ZZ. The pivot arm 2 thus pivots from a first position, which corresponds to the closed position of the wing 42, to a second position, which corresponds to the open position of the wing 42, and back.

[0028] The guide rail 20 further forms a guide track 22 in which a second roller 4b is guided. In the exemplary embodiment shown, the guide track 22 is formed by a groove 50 which is delimited on its side facing the opening by a rolling wall 40. In the exemplary embodiment shown, the second roller 4b extends into the groove 50 and runs in the guide track 22 on the inner side of the rolling wall 40, while the first roller 4a is guided on the outer side of the rolling wall 40 parallel to it. The first roller 4a can also roll on the outer side of the rolling wall 40 during the movement of the sash 42, but it can also be guided at a distance parallel to the rolling wall 40 and along the rolling wall 40.

[0029] Fig. 3clarifies that the swivel arm 2 carries the two rollers 4a and 4b at its free end, which are rotatably mounted on the swivel arm 2. In the closed position, the two rollers 4a and 4b are arranged next to each other in relation to the longitudinal direction XX (see Fig. 2 and 4 ), after pivoting the pivot arm 2, the two rollers 4a and 4b are arranged next to each other at an angle to the transverse direction YY in the embodiment shown.

[0030] The first roller 4a can assume two different positions, namely a first position in which the roller 4a is in front of the guide rail 20 in the opening direction of the wing 42 (compare Figure 4 ) and a second position in which the roller 4a is arranged next to the roll-off wall 40, i.e. between the opening or, for example, a vehicle outer wall and the roll-off wall 40 (compare Figure 5 ).

[0031] The deflection element 30 thus has the outer contour 30a on its outer side and the stop surface 30b on its inner side. In the first position of the pivot arm 2, the closed position of the leaf 42, the deflection element 30 is arranged between the two rollers 4a, 4b.

[0032] The pivot arm 2 is designed as an angled element, whereby the two rollers 4a, 4b are arranged offset outwardly with respect to the opening relative to the bearing pin 3. The pivot arm forms a first section 2a, which in the first position runs approximately parallel to the longitudinal direction XX and transitions into a second section 2b, which runs approximately in the transverse direction YY at an angle of approximately 45 degrees to section 2a.

[0033] Fig. 4illustrates the opening movement of the wing 42 already described above: If the wing 42 and thus the guide rail 20 are moved in the X direction from the closed position to the open position (in the illustration according to Fig. 4 to the left), the outer contour 30a of the deflection element 30, through contact with the roller 4a and the pull of the roll-off wall 40 on the inner second roller 4b, generate a rotation of the pivot arm 2 in the direction away from the opening or the vehicle (counterclockwise in the initial example shown), whereby the guide system and thus the wing 42 move in a defined manner in the Y direction. The wing 42 then moves further in a parallel offset in the X direction and is displaced parallel to the vehicle's outer wall.

[0034] Fig. 5illustrates the closing movement of the wing 42: If the wing 42, and thus the guide rail 20, is moved in the longitudinal direction X - X from the open position to the closed position (in the illustration according to Fig. 5 to the left), the inner second roller 4b of the swivel arm 2 comes into contact with an inner stop surface 30b and is carried along by it. This is only possible when the outer first roller 4a is moved over the Fig. 5 has moved past the marked point 30c, so that the over-center lock can be overcome in the open state. This allows the outer first roller 4a to move along the outer contour 30a of the deflection element 30 until it is positioned in the closed position in front of the guide rail 20 or the deflection element 30, as shown in Fig. 4 shown (reversed to Fig. 5 ). In this position, the first roller 4a can be in contact with the deflection element 30 or spaced apart from the deflection element 30.

[0035] Fig. 6 shows that the swivel arm 2 creates a lock in the open position. The weight of the wing 42 results in state A (left side of the Figure 6 ), in which only the inner first roller 4b rests against the roll-off wall 40 and an end buffer 5 rests against the pivot arm 2. The dead weight of the leaf 42 acts in the direction of the door because the leaf 42 is pivotally mounted about a pivot point in the door drive above the door opening. The pivot point is located inside the vehicle, while the door leaf is offset parallel to it outside the vehicle. Due to its dead weight, the leaf 42 therefore exerts a force in the direction of the door opening, particularly in its lower area.

[0036] Due to vandalism or a very strong inclination of the vehicle, the wing 42 can be pushed outwards (condition b, right side of the Figure 6), causing the swivel arm 2 to rotate clockwise by a few degrees in the illustrated embodiment. The pressure acting in the y-direction causes the swivel arm 2 to rotate slightly until the inner roller 4b also comes into contact and the rotation stops.

[0037] The resulting play is then limited or minimized by the outer first roller 4a, which then presses against the roll-off wall 40 from the outside. The inner first roller 4a continues to bear against the roll-off wall 40 from the inside. In this situation, the pivot arm 2 no longer makes contact with the end buffer 5.

[0038] The swivel arm 2 is locked in the open position; it cannot rotate beyond its own center point because the contact points of the rollers 4a, 4b prevent this. Only when the rollers 4a, 4b reach the deflection element 30 can the swivel arm 2 rotate inward again.

[0039] Since the wings 42 are always moved in a coordinated manner in the X and Y directions by the drive system, the guide system is always guided in a defined manner in the Y direction via the deflection element 30 or the outer contour 30a and the stop surface 30b.

[0040] For the open position of the wing 42, the Fig. 3 The clearly visible buffer 5 represents a stop. For a defined entry into the closed position, a lift-out protection device 6 is also attached to the underside of the swivel arm 2, which is supported on the wing 42 in the closed position. Figure 7shows the anti-lift device 6 and the sash 42 from the inside. In the illustrated embodiment, the anti-lift device 6 has an approximately cuboid shape, which, during the movement of the sash 42, comes into contact with a horizontally oriented surface 44 of the sash 42 on the underside when the sash 42 is lifted. In the illustrated embodiment, the anti-lift device 6 is guided in a groove that extends below the guide rail 20 and parallel to it. This prevents the sash 42 from being lifted or raised. Reference numbers

[0041] 2 Swivel arm 2a first section 2b second section 3 Bearing bolt 4a first roller outside 4b second roller inside 5 End buffer 10 Base plate 15 Adapter plate 20 Guide rail 22 Guide track 30c Point 30 Deflection element 30a Outer contour 30b Stop surface 40 Roll-off wall 50 Groove XX Longitudinal direction YY Transverse direction

Claims

1. A system with a wing (42) for closing an opening arranged in a frame, comprising - a pivot arm (2) which is fixedly arranged on the frame and pivotable about a vertical axis (ZZ), the free end of which is guided on the wing (42) in a guide rail (20) extending along a longitudinal direction (XX) in an opening direction and which, in a closed position of the wing (42), is oriented in a first position approximately in the longitudinal direction (XX) and, in an open position of the wing (42), in a second position approximately in a transverse direction (YY), - a deflection element (30) on the guide rail (20), which is designed and arranged in such a way that it causes the pivot arm (2) to pivot from its first position to its second position and a movement of the wing (42) in the transverse direction (YY),when the wing (42) is moved from the closed position to an open position and the free end of the pivot arm (2) contacts the deflection element (30), - a stop surface (30b) in the guide rail (20), which is designed and arranged such that the free end of the pivot arm (2) comes into contact with the stop surface (30b) when the wing (42) moves from the open position in the closing direction and causes the pivot arm (2) to pivot from its second position to its first position and the wing (42) to move in the transverse direction (YY).

2. System according to claim 1, characterized in that- the pivot arm (2) has a first roller (4a) and a second roller (4b), which also each rotate about their vertical axis (ZZ), - the guide rail (20) has a roll-off wall (40) extending parallel to the main extension of the sash (42) along the longitudinal direction XX and a stop surface (30b) arranged at a front end of the guide rail (20) in the opening direction of the sash (42), - in the opening direction of the sash (42), at the front end of the guide rail (20) and at the rear of the stop surface (30b), a stop wedge pointing in the opening direction as a deflection element (30) is arranged, wherein, - the first roller (4a) is arranged outside the guide rail (20) in such a way that, in the closed position of the sash (42), it is arranged in front of the stop wedge in the opening direction, - the second roller (4b) is arranged inside the guide rail (20) behind the roll-off wall (40) and rolls on the roll-off wall (40),the components of the system are arranged and aligned with one another in such a way that when the wing (42) moves a. from the closed position in the opening direction, the first roller (4a) rolls on the stop wedge and causes the pivot arm (2) to pivot from the first position to the second position, b. from the open position in the closing direction, the second roller (4b) comes into contact with the stop surface (30b) and causes the pivot arm (2) to pivot from the second position to the first position.

3. System according to claim 1 or claim 2, characterized in that the starting wedge is formed by a deflection element (30) with a convex outer contour (30a).

4. System according to claim 2 or claim 3, characterized in that the two rollers (4a, 4b) are arranged next to each other in the first position of the swivel arm (2) with respect to the longitudinal direction XX and next to each other at an angle to the transverse direction YY in the second position.

5. System according to one of claims 2 to 4, characterized in that the guide rail (20) forms a guide track (22) in which the second roller (4b) is guided, wherein the guide track (22) has a groove (50) which is delimited on its side facing the opening by the rolling wall (40), and wherein the second roller (4b) is guided in the groove (50) and rolls on the inner side of the rolling wall (40).

6. System according to one of claims 2 to 5, characterized in that the deflection element (30) forms the outer contour (30a) on its outer side and the stop surface (30b) on its inner side, wherein in the first position of the pivot arm (2) the deflection element (30) is arranged between the two rollers (4a, 4b).

7. System according to one of claims 2 to 6, characterized in thatthe pivot arm (2) is designed as an angled element with a first section (2a) which, in the first position, runs approximately parallel to the longitudinal direction XX and merges into a second section (2b) which, at an angle of approximately 45 degrees to the section (2a), runs approximately in the transverse direction YY.

8. System according to one of claims 1 to 7, characterized in that the wing (42) is formed by a door wing of a vehicle and the opening is formed by a door opening of the vehicle.

9. A method for opening and closing an opening arranged in a frame, comprising the method steps a) opening process - moving a wing (42) which closes the opening from a closed position towards an open position along a longitudinal direction (XX), so that a guide rail (20) extending along the longitudinal direction (XX) in an opening direction, with a deflection element (30) arranged at the front end of the guide rail (20) in the opening direction, comes to rest on a free end of a pivot arm (2) which is fixedly arranged on the frame and pivotable about a vertical axis (ZZ), and thereby causes the arm to move further from its first position into its second position and a movement of the wing (42) in the transverse direction (YY) out of the opening, - further movement of the wing (42) in the longitudinal direction (XX) until it reaches its final open position,b) Closing process - moving the wing (42) from the open position towards the closed position along the longitudinal direction (XX) until a stop surface (30b) in the guide rail (20) comes into contact with the free end of the pivot arm (2) and causes the pivot arm (2) to pivot from its second position to its first position and the wing (42) to move in the transverse direction (YY) towards the opening, - further movement of the wing (42) to its final closed position.

10. Method according to claim 9, characterized in that the wing (42) is formed by a door wing of a vehicle and the opening is formed by a door opening of the vehicle.

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