This application claims the priority of European Patent Application Serial No. 18 194099.0, filed Sep. 12, 2018, pursuant to 35 U.S.C. 119(a)-(d), the subject matter of which is incorporated herein by reference.
The present invention relates to a device for adjusting a first component and a second component of a passenger and/or goods transport means relative to each other. Furthermore, the invention relates to a passenger and/or freight transport means with such a device.
The passenger and/or freight transport means is designed in particular as a vehicle and may also be a ship, an aircraft, a train or the like. In the following, when the invention is explained in relation to vehicles, the statements equally apply to other passenger and/or freight transport means such as ships, aircraft, trains or the like.
The standard of quality, which is particularly important in the case of vehicles as a sales argument, is also shown in the uniform and small degree of visible gaps with which two adjacent components, for example the motor hood, the headlight and the bumper, are arranged adjacent to one another in vehicles. Due to fluctuations in production, however, the components are never exactly the same size, so that sets a different gap dimension for each vehicle. In order nevertheless to obtain a uniform gap dimension, the gap dimension is proceeded separately for each vehicle in the following manner: At least one of the two adjacently arranged components is mounted to a certain extent movable on the vehicle. The movement is usually generated by means of an eccentric disc, which is rotatably arranged between the movable member and a support on which the movable member is supported. By rotating the eccentric disk, the component in question can be moved towards or away from the component arranged adjacent to it. As a result, the gap dimension can be adjusted.
To move the component in question to the adjacent component arranged to move or move away from this, by means of the eccentric disc, it requires normally a comparatively high effort, which must be applied by the relevant employee of the vehicle manufacturer. Usually, the eccentric disc has a receptacle for a wrench, with which the employee can apply the necessary force for this purpose. However, since the force is relatively high, the gap dimension must be set very accurately, which can take a considerable amount of time setting the gap dimension as specified. Furthermore, the effectiveness of the eccentric disc is low. In addition, the eccentric disc tends to adjust as a result of the vibrations occurring during operation of the vehicle, which also changes the set gap dimension.
The EP 2 683 596 A1 discloses a device for adjusting the gap dimension without an eccentric disc, however, it cannot be reliably prevented with the device shown there, that a once set gap dimension changes during operation of the vehicle.
It would therefore be desirable and advantageous to provide an improved device to obviate prior art shortcomings and to provide solutions to the shortcomings in the prior art.
According to one aspect of the present invention a device is provided with which it is possible with simple and inexpensive means to adjust the gap dimension a first component and a second component of a passenger and/or goods transport in a short time as specified, which once adjusted gap dimension should also be maintained under the vibrations occurring during operation. Furthermore, one embodiment of the present invention is based on the object of providing a passenger and/or freight transport vehicle with such a device.
This object is achieved with the following features with advantageous embodiments being the subject of the dependent claims.
One embodiment of the present invention relates to a device for adjusting a first component and a second component of a passenger and/or freight transport means relative to one another, wherein the two components are arranged adjacent to one another to form a gap, including a base body, an adjusting element mounted in the base body and movable along a first axis and/or about the first axis, and an actuating body mounted in the base body and movable along a second axis which cooperates with the adjusting element such that the movement of the adjusting element along the first axis or about the first axis is converted into a movement of the actuating body and/or the adjusting element along the second axis, wherein the movement of the actuating body and/or of the adjusting element along the second axis is transferable to the first component or the second component, and a fixing device for fixing the adjusting element and the actuating body is in a selectable position.
An adjusting element is to be understood as meaning an element which can be operated by a person, for example by an employee of the manufacturer of the transport vehicle or a repair workshop, preferably with a suitable tool. The actuating body converts the movement of the adjusting element along the first axis and/or about the first axis into a movement along the second axis.
According to the present invention, two units cooperate in the device, namely the adjusting element and the actuating body. The interaction can be designed such that a translation in the conversion of the movement of the adjusting element is effected in the movement of the actuating body. This makes it possible to keep the force required for adjusting the first component and the second component relative to each other low. In addition, the device according to the present invention includes the fixing device, with which the position of the adjustment element and the actuating body can be fixed in a selectable position. It follows, that the two relatively movable components cannot move relative to each other once the position of the adjusting element and the actuating body has been fixed. As mentioned above, the gap dimension can shift in known passenger and/or freight transport vehicles due to loads and vibrations occurring during operation. Such a shift in the operation of the passenger and/or goods transport means is prevented by means of the fixing device. As a result, the once set gap dimension is retained. The above-mentioned quality standard of the vehicle with respect to the gap dimension is therefore not negatively impacted.
According to a further embodiment, the adjusting element is designed as a screw with a screw head. Screws are a widely used means to convert a rotary motion into a longitudinal motion. They are inexpensive and easy to use. In order to prevent the screw from loosening under the stresses and vibrations occurring during operation and to perform an uncontrolled rotation, the screw can be secured, for example, with spring washers or other screw locking elements, which in this case act as a fixing device.
In a further developed embodiment, the fixing device may be formed as a self-locking thread of the screw. The threads commonly used in screws are anyway self-locking, which does not preclude that the screws in question can rotate uncontrollably during operation. In this embodiment, the thread can be made self-locking to a particular extent, for example, by the fact that the pitch of the thread is particularly low. In this case, the screw acts not only as the adjusting element, but at the same time as the fixing device, so that the device according to this embodiment requires only a few components and therefore has a low complexity.
According to a further embodiment, the adjusting body is rotatably mounted in the base body via a cantilever movable about a pivot point, in particular about a directed fulcrum perpendicular to the first axis and the second axis. The adjusting body has a first contact surface for acting through the screw head of the screw, which is aligned substantially perpendicular to the first axis, and a second contact surface for contacting the first component or the second component, which is aligned substantially perpendicular to the second axis. As a result, a directional deflection of the adjustment is achieved in a simple manner. For this purpose, the base body in particular has an internal thread matching the screw, which is aligned in the direction of the first axis. In particular, the actuating body has an opening for the passage of the screw, and the first contact surface is formed by the surface surrounding the opening.
In accordance with a further embodiment, the adjusting body has at least two, in particular, an approximately L-shaped actuating body forming legs, which are angled to each other in the range of 45° to 135°, in particular approximately 90°, wherein the pivot point in the connection point of the two Leg is arranged and wherein the first contact surface is formed on the one leg and the second contact surface on the other leg. As a result, a corresponding actuating body is realized in a simple manner.
A further embodiment is wherein at least one, preferably both, of the first and second contact surfaces are convexly curved, thereby causing the respective contact surface to be aligned substantially perpendicular to the first axis or second axis even in different rotational positions about the pivot point. As a result, the contact with the component or the screw is improved.
According to another embodiment, the first contact surface is arranged at a different, in particular, smaller distance from the point of rotation than the second contact surface. In this way, an advantageous translation can be determined by fixing the different distances.
In yet a further development, the adjusting element in that embodiment may be formed as a screw, wherein the adjusting body is designed as a screw on the particular fixedly arranged eccentric body. The eccentric body makes it possible to design the actuator space-saving and simple. In this way, the entire device can be made compact and also be arranged where the available space is limited.
In a further embodiment, the eccentric body can have a helical bearing surface with a radius that changes with respect to the first axis, the eccentric body being supported on a bearing section of the basic body. In this embodiment, a particularly good guidance of the eccentric body is provided with respect to the base body, whereby the two components to be adjusted relative to each other can also be moved very precisely. The gap dimension can therefore be set very accurately.
A further developed embodiment is wherein the fixing device comprises a friction section arranged on the main body and cooperating with the eccentric body. In this embodiment, the fixing device can be designed to be particularly simple, namely the fact that the eccentric body is pressed against the friction portion of the body. Consequently, a friction force must be overcome, which prevents the screw rotating uncontrollably during operation of the passenger and/or freight transport and changes the set gap dimension.
According to a further embodiment, wherein the adjusting element comprises a spindle and the actuating body comprises a spindle nut arranged on the spindle and a scissor pair with two scissor members, wherein the spindle nut is non-rotatably secured to the scissor pair, wherein the first of the scissor members is rotatably fastened on the base body and the other of the scissors members is rotatably fastened with a support body, on which the first component or the second component can be placed, or the first of the scissor members rotatably attached to the base body and the other of the scissor members can be fastened non-rotatably on the first component or the second component. The use of the scissor pair makes it possible to move the component in question very precisely relative to the second component. The gap dimension can therefore be adjusted very precisely. In addition, it is possible by means of the scissor pair to realize large ratios, so that even heavy components can be moved without an unreasonable force for the employees mounting the components relative to each other to set the desired gap size.
A further embodiment is wherein the adjusting element comprises a spindle and the adjusting body comprises a spindle wedge arranged on the spindle or about the spindle, and the base body has a wedge portion corresponding to the spindle wedge, wherein the spindle wedge is supported on the wedge portion or vice versa. The spindle wedge and the wedge portion each have a very simple geometric shape, so that this embodiment is characterized by a simple shape.
In addition, the spindle wedge and the corresponding wedge portion act as the fixing device, since a particularly high frictional force acts between them, which prevents an adjustment of the gap dimension during operation.
In a further developed embodiment, the fixing device has a blocking element which is non-rotatable and axially displaceable on the adjusting element, wherein the blocking element between a blocking position, in which the blocking element blocks the rotation of the adjusting element about the first axis, and an open position, in which the blocking element allows the rotation of the adjusting element, is axially displaceable. In this embodiment, the employee must first move the locking element from the blocking position to the open position when setting the gap dimension before he can move the two relevant components relative to each other and set the gap dimension. If the intended gap dimension is reached, the employee puts the blocking element back into the locking position, in which rotation of the adjusting element is prevented. As a result, it is also prevented that the two components in question can move relative to each other during operation and changes the gap dimension.
According to a further embodiment, the adjusting element is designed as a gear rotatably mounted in the base body, which is in mesh with the actuating body arranged as a rack movable along the second axis. By means of the gearwheel and the gear meshing with the gear meshing gear large translation ratios can be provided in a small space, so that heavier components can be brought to the intended gap size, without an unreasonable amount of force to be applied by the employee assembling these components.
According to a further developed embodiment, a rotatably mounted in the main body intermediate gear is disposed between the gear and the rack. Also, the idler gear serves to increase the gear ratios and thereby make the setting of the gap dimension for the employee particularly easy.
In addition, it can be provided in a further embodiment that the gear is formed as a bevel gear. By means of the bevel gear, the accessibility of the adjusting element can be selected according to the requirements of the production. In addition, it is also possible to use the proposed device in hard to reach places, so that components can be brought to the desired gap dimension whose gap dimension was not yet adjustable. As a result, the quality impression of the passenger and/or freight transport means concerned can be further increased.
A further embodiment is wherein the gear is mounted axially displaceable in the main body, wherein the gear between a blocking position in which the rotation of the adjusting element is locked about the first axis, and an open position in which the rotation of the adjusting element is possible, is axially displaceable. In this embodiment, the employee must first move the gear from the locking position to the open position when setting the gap dimension before he can move the two relevant components relative to each other and adjust the gap dimension. If the intended gap dimension is reached, the employee puts the gear back in the blocking position, in which rotation of the adjusting element is prevented. As a result, it is also prevented that the two components in question can move relative to each other during operation and changes the gap dimension.
According to a further embodiment, the base body has a locking portion corresponding to the toothed wheel, in which the toothed wheel engages positively in the locking position. The locking portion can be particularly easy to manufacture in this embodiment.
An embodiment of the invention relates to a passenger and/or goods transporting means, comprising a first component and a second component, wherein the two components are arranged adjacent to each other to form a gap, and a device according to one of the previously described embodiments, wherein the first component and the second component by means of the device are adjustable relative to each other, whereby the gap dimension of the gap is variable.
The technical effects and advantages that can be achieved with the present invention for a passenger and/or freight transport vehicle, correspond to those that have been discussed for the present device for adjusting a first component and a second component. In summary, it should be noted that on the one hand, the gap dimension can be set with a small force as specified, even if the component to be moved is relatively heavy. On the other hand, it is prevented by means of the fixing device that the once set gap dimension changes uncontrollably due to the vibration and loads occurring during operation of the passenger and/or goods transport.
Other features and advantages of the present invention will be more readily apparent upon reading the following description of currently preferred exemplified embodiments of the invention with reference to the accompanying drawing, in which:
FIG. OA is a schematic side view of an eighth embodiment of the device according to the present invention,
Throughout all the Figures, same or corresponding elements are generally indicated by same reference numerals.
The first component 12 may, for example, be a bumper or a headlight, whereas the second component 14 may be, for example, an engine hood. The first component 12 and the second component 14 are arranged adjacent to the formation of a gap 18 with the gap dimension G, the gap 18 is visible from the outside. The first component 12 is attached to the vehicle 16 rotatably about an attachment point B, wherein an axially displaceable mounting is also conceivable. Furthermore, the first component 12 has a projection 20 which cooperates with a device 22 according to the invention for adjusting the first component 12 relative to the second component 14. In the example shown, the second component 14 should be located above the first component 12 with respect to the intended orientation of the vehicle 16. Referring to
The distance of the gap 18 forming part of the first component 12 to the attachment point B is selected so that due to the operation of the device 22 according to the invention mainly causes a movement of the first member 12 in the Z direction, whereby the gap dimension G of the gap 18 can be changed accordingly. Usually, the gap dimension G is less than 1 cm. Due to the fact that the second component 14 is arranged above the first component 12, the first component 12 must be moved against the gravitational force. Consequently, the setting of the gap dimension G is particularly difficult in this case. However, the device 22 according to the invention can likewise be used for the case in which the first component 12 and the second component 14 are arranged next to one another or in different orientations relative to one another.
The actuating body 30 has a first contact surface 37 for acting on the screw head 35 of the screw 34, which is aligned substantially perpendicular to the first axis A1. Furthermore, the adjusting body 30 has a second contact surface 39 for contacting the first component 12, which is aligned substantially perpendicular to the second axis A2.
The actuating body 30 has in the first embodiment, two legs 41, 43, which give the actuator body 30 an approximately L-shaped configuration. The two legs 41, 43 are angled approximately at 90° to each other, wherein the pivot point D is arranged in the connecting region of the two legs 41, 43 and wherein the first contact surface 37 is formed on one leg 41 and the second contact surface 39 formed on the other leg 43.
In the first exemplary embodiment, both the first contact surface 37 and the second contact surface 39 are convexly curved, which causes the respective contact surface 41, 43 to be substantially perpendicular to the first axis A1 or the second axis A2, even in different rotational positions about the pivot point D. In addition, the first contact surface 37 is arranged at a smaller distance from the pivot point D than the second contact surface 39.
In addition, the device according to the present invention 221 according to the first embodiment, a fixing device 40, which causes the once set position of the adjusting element 32 and consequently of the actuating body 30 to be fixed so that it does not change even under load during operation of the vehicle 16. In the exemplary embodiment shown, the fixing device 40 comprises a self-locking thread 42 arranged on the screw 34, but alternatively or cumulatively, it may comprise, for example, spring washers or other screw locking elements, not shown.
If the gap dimension G of the gap 18 shown in
To adjust the gap dimension G, the screw 34 is rotated in one or the other direction about the first axis A1. As a result, the screw 34 is further moved into the threaded sleeve 49 or out of the threaded sleeve 49 along the first axis A1. As a result of the changing radius of the support surface 46, the first component 12 is thereby moved along with the screw 34 and the eccentric body 44 along the second axis A2 away from the base body 26 and from the carrier 24 or towards the base body 26 and the carrier 24. The pitch of the thread of the threaded sleeve 49 is dimensioned so that the support portion 48 always remains on the support surface 46 of the eccentric body 44. As shown in
As already mentioned, the friction section 50 of the main body 26 bears against the end of the eccentric body 44 pointing away from the threaded sleeve 49. Due to the frictional force acting between the friction portion 50 and the eccentric body 44, the screw 34 is prevented from rotating uncontrollably about the first axis A1. Consequently, in this embodiment, the friction portion 50 forms the fixing device 40.
To set the gap dimension G, the spindle 60 is rotated in one or the other direction about the first axis A1. As a result, the spindle nut 62 is moved in one or the other direction axially along the first axis A1 and transmits this movement to the left scissor pair 54. If the spindle 60 is moved so that the spindle nut 62 moves to the right relative to the
In
Due to the fact that in both the sixth embodiment and in the seventh embodiment of the inventive device 226, 227 of the spindle wedge 64 is in contact with the wedge portion 68 of the base body 26, acts between the spindle wedge 64 and the wedge portion 68, a correspondingly high frictional force, which prevents in that the spindle wedge 64 can move uncontrollably relative to the wedge portion 68. Consequently, the spindle wedge 64 in the apparatus 226, 227 according to the sixth and the seventh embodiment acts as the fixing device 40. In the seventh embodiment, a frictional force additionally acts between the spindle wedge 64 and the carrier 24, so that the once set position of the adjusting element 32 and the adjusting body 30, in this case the spindle wedge 64, is additionally fixed.
In
In
As is apparent from
While the invention has been illustrated and described as embodied in a vehicle, it is not intended to be limited to the details shown since various modifications and structural changes may be made without departing in any way from the spirit of the present invention. The embodiments were chosen and described in order to best explain the principles of the invention and practical application to thereby enable a person skilled in the art to best utilize the invention and various embodiments with various modifications as are suited to the particular use contemplated.
What is claimed as new and desired to be protected by Letters Patent is set forth in the appended claims and their equivalents:
Number | Date | Country | Kind |
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18 194099.0 | Sep 2018 | EP | regional |