EP4146893A1 - Entraînement à broche pour élément de fermeture d'un véhicule à moteur - Google Patents

Entraînement à broche pour élément de fermeture d'un véhicule à moteur

Info

Publication number
EP4146893A1
EP4146893A1 EP21724212.2A EP21724212A EP4146893A1 EP 4146893 A1 EP4146893 A1 EP 4146893A1 EP 21724212 A EP21724212 A EP 21724212A EP 4146893 A1 EP4146893 A1 EP 4146893A1
Authority
EP
European Patent Office
Prior art keywords
drive
spindle
section
guide tube
spring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP21724212.2A
Other languages
German (de)
English (en)
Inventor
Michael Schneiderbanger
Tobias Zwosta
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Brose Fahrzeugteile SE and Co KG
Original Assignee
Brose Fahrzeugteile SE and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Brose Fahrzeugteile SE and Co KG filed Critical Brose Fahrzeugteile SE and Co KG
Publication of EP4146893A1 publication Critical patent/EP4146893A1/fr
Pending legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F15/00—Power-operated mechanisms for wings
    • E05F15/60—Power-operated mechanisms for wings using electrical actuators
    • E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
    • E05F15/611—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
    • E05F15/616—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by push-pull mechanisms
    • E05F15/622—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by push-pull mechanisms using screw-and-nut mechanisms
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
    • E05F1/1041—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring perpendicular to the pivot axis
    • E05F1/105—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring perpendicular to the pivot axis with a compression spring
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
    • E05F1/1041—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring perpendicular to the pivot axis
    • E05F1/105—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring perpendicular to the pivot axis with a compression spring
    • E05F1/1058—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring perpendicular to the pivot axis with a compression spring for counterbalancing
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
    • E05Y2201/43—Motors
    • E05Y2201/434—Electromotors; Details thereof
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/40—Motors; Magnets; Springs; Weights; Accessories therefor
    • E05Y2201/47—Springs
    • E05Y2201/474—Compression springs
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/60—Suspension or transmission members; Accessories therefor
    • E05Y2201/622—Suspension or transmission members elements
    • E05Y2201/696—Screw mechanisms
    • E05Y2201/70—Nuts
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2201/00—Constructional elements; Accessories therefor
    • E05Y2201/60—Suspension or transmission members; Accessories therefor
    • E05Y2201/622—Suspension or transmission members elements
    • E05Y2201/696—Screw mechanisms
    • E05Y2201/702—Spindles; Worms
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
    • E05Y2600/40—Mounting location; Visibility of the elements
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
    • E05Y2600/40—Mounting location; Visibility of the elements
    • E05Y2600/45—Mounting location; Visibility of the elements in or on the fixed frame
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
    • E05Y2600/40—Mounting location; Visibility of the elements
    • E05Y2600/46—Mounting location; Visibility of the elements in or on the wing
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2600/00—Mounting or coupling arrangements for elements provided for in this subclass
    • E05Y2600/60—Mounting or coupling members; Accessories therefor
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/26—Form or shape
    • E05Y2800/28—Form or shape tubular, annular
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/53—Type of wing
    • E05Y2900/546—Tailboards, tailgates or sideboards opening upwards

Definitions

  • the invention relates to a spindle drive for a closure element of a motor vehicle according to the preamble of claim 1, a spindle drive for a closure element of a motor vehicle according to the preamble of claim 11 and a spindle drive for a closure element of a motor vehicle according to the preamble of claim 13.
  • closure element is to be understood comprehensively in the present case. This includes tailgates, trunk lids, engine hoods, side doors, sliding doors, lifting roofs, sliding windows, etc.
  • the spindle drive in question is primarily used for tailgates and trunk lids in motor vehicles. It is used regularly for a motorized adjustment of the closure element between an open position and a closed position.
  • the known spindle drive (DE 102014 105 956 A1), from which the invention is based, has a spindle-spindle nut gear with spindle, spindle nut and spindle guide tube. Furthermore, it has drive connections for directing drive movements, one of which is assigned to the spindle and one of which is assigned to the spindle guide tube. Due to its cylindrical shape, the spindle guide tube usually has an essentially constant outer radius. The drive connection assigned to the spindle guide tube is inserted there with a connection section into the spindle guide tube and crimped to it.
  • the known spindle drive has a drive spring which biases the drive connections away from each other and thus supports the drive unit.
  • This drive spring is usually laid out on the weight of the tailgate and designed accordingly strong.
  • Such drive springs can become a hazard, especially in the event of a fire, if they otherwise detach from the spindle drive and suddenly relax. It is known that these drive springs are fitted with a housing of the spin- to secure the drive and / or the drive connections. In some cases, other securing elements are also used.
  • the invention is based on the problem of designing and developing the known spindle drive of the kind that stable protection of the drive spring is achieved at low production costs.
  • the spindle guide tube has a tube end section with a tube end edge on its side facing the first drive connection, that the tube end section is radially expanded, in particular bent up, over at least part of its circumference in such a way that the tube end edge has an outer end starting from the drive longitudinal axis Has edge radius which is greater than the first outer radius, and that the widened pipe end section secures the drive spring against movement along the drive longitudinal axis.
  • the term “secure” means that the widened pipe end section at least in some cases, in which some or, depending on the design, all of the surrounding areas Components, in particular the plastic components, break away or melt away, support the drive spring directly or indirectly and prevent further expansion.
  • the drive spring is additionally supported directly or indirectly axially on the expanded pipe end section in the assembled state.
  • the drive spring then sometimes, preferably always, exerts a spring force on the expanded pipe end section when the spindle drive is in operation.
  • the pipe end section then serves not only to protect the drive spring, but also to secure it in normal operation.
  • Claim 3 relates to preferred embodiments of the expanded Rohrendab section, which can be expanded completely or only in sections as required.
  • a fuse element arrangement which has at least one fuse element.
  • a particularly simple construction results when the securing element is arranged around the spindle guide tube.
  • the drive spring is in direct contact with the expanded pipe end section in the axial direction.
  • the pipe end section has to be widened accordingly; no additional safety element is required for this.
  • Claim 7 relates to preferred radii of the drive spring, the pipe end edge and the securing element in relation to one another.
  • the pipe end section can have a bending section which can have different bending angles.
  • Corresponding configurations are the subject of claim 8.
  • the preferred connection between the drive connection and the spindle guide tube is the subject matter of claim 9.
  • Claim 10 relates to preferred materials of the securing element, the drive spring, the spindle guide tube, the first drive connection and the second drive connection.
  • a further spindle drive for a closure element of a motor vehicle is claimed.
  • This further teaching is also based on the concept of the first teaching.
  • any pipe section of the spindle guide pipe is expanded radially in principle.
  • the pipe section is widened in such a way that a maximum outer pipe radius in the pipe section is smaller than a minimum coil radius of the drive spring.
  • Claim 12 relates to a preferred connection of the spindle guide tube with the drive connection and possible configurations of the drive connection.
  • FIG. 3 shows, in an enlarged view, a detail of the proposed drive according to FIG. 1.
  • FIG. 1 shows a single spindle drive 1, which is used for the motorized adjustment of a closure element 2, here a tailgate pe, of a motor vehicle 3.
  • a closure element 2 here a tailgate pe
  • All statements on a tailgate apply equally to all other conceivable closure elements 2.
  • the drive unit 4 has here and preferably an electric drive motor 10 and an intermediate gear 11 connected between the electric drive motor 10 and the spindle-spindle nut gear 5.
  • the spindle 6 meshes with the spindle nut 7.
  • the spindle 6 is driven by the drive unit 4.
  • the spindle nut 7 is driven instead.
  • the spindle-spindle nut gear 5 thus converts here and preferably rotational drive movements of the drive unit 4 into linear drive movements of the spindle 6 or the spindle nut 7.
  • the spindle guide tube 8 is axially fixedly connected to the spindle nut 7 and can be adjusted telescopically to the spindle 6 along the drive longitudinal axis 9.
  • the spindle 6 runs in a spindle guide area 12 of the spindle guide tube 8 in the spindle guide tube 8.
  • the spindle guide area 12 does not include the entire spindle guide tube 8.
  • the spindle guide tube 8 is relatively short compared to the spindle 6 and that the Spindle 6 can protrude from the spindle guide tube 8 on both sides.
  • the spindle guide region 12 could then encompass the entire spindle guide tube 8. Either way, the spindle guide area 12 is the area in which the spindle 6 can be located within the spindle guide tube 8.
  • the spindle drive 1 has drive connections 13, 14 for diverting the drive movements to.
  • the drive connections 13, 14 can be adjusted relative to one another by means of the drive unit 4 along the drive longitudinal axis 9 between a retracted state (FIG. 2a)) and an extended state (FIG. 2b)).
  • a retracted state FIG. 2a
  • an extended state FIG. 1
  • one of the drive connections 13 is connected to a motor vehicle body of the motor vehicle 3 and the other of the drive connections 14 is connected to the closure element 2 of the motor vehicle 3.
  • a first drive connection 13 of the drive connections 13, 14 is connected axially fixed to the spindle guide tube 8.
  • a second drive connection 14 of the drive connections 13, 14 is connected to the spindle 6 in an axially fixed manner. The drive connections 13, 14 are thus adjusted by the telescopic adjustment of the spindle 6 with respect to the spindle nut 7 and the spindle guide tube 8.
  • a drive spring 15 which here and preferably is a helical spring and / or a compression spring, in particular a helical compression spring, is provided.
  • the drive spring 15 also serves to generate the drive movements along the drive longitudinal axis 9.
  • the drive spring 15 acts on the drive connections 13, 14 and particularly biases them away from one another.
  • the spindle guide tube 8 has a first outer radius a along at least one axial section of the spindle guide region 12, here and preferably along the entire spindle guide region 12, starting from the drive longitudinal axis 9. It is provided here that the spindle guide tube 8 is round in cross section. In this case, the outer radius a is independent of the angle.
  • the spindle guide tube 8 it would also be conceivable for the spindle guide tube 8 to have a different cross section.
  • the outer radius a is preferably the maximum radius that the spindle guide tube 8 has in the spindle guide region 12.
  • the spindle guide tube 8 has a constant outer radius a in at least 50%, more preferably at least 90%, of the axial extent of the spindle guide region 12. Since the spindle 6 is guided here and preferably with a guide contour 16 in the spindle guide tube 8 and this preferably has a constant wall thickness, it can also be seen that the outer radius a must be constant here and preferably in essential parts of the spindle guide region 12.
  • the spindle guide tube 8 has a tube end section 17 with a tube end edge 18 on its side facing the first drive connection 13.
  • the pipe end edge 18 is the end material end of the spindle guide pipe 8.
  • the pipe end portion 17 is widened radially, in particular bent upward, over at least part of its circumference in such a way that the pipe end edge 18, starting from the drive longitudinal axis 9, has an outer end edge radius e which is larger than the first outer radius a, and that the widened Rohrendab section 17 secures the drive spring 15 against movement along the drive longitudinal axis 9. This can best be seen in the lower enlargement in FIG. 2 and in various variants in FIG. 3.
  • the pipe end section 17 extends from the start of the widening to the pipe end edge 18.
  • the outer end edge radius e is greater than the first outer radius a in relation to the same angular position about the drive longitudinal axis 9.
  • the outer end edge radius e is constant in all Win angle positions about the drive longitudinal axis 9.
  • the securing of the drive spring 15 serves to prevent the drive spring 15 from performing any undesired axial movement, in particular in an emergency such as a fire. This backup can be indirect. It can also be that the securing is only accompanied by a power transmission between the drive spring 15 and the pipe end section 17 if other parts of the spindle drive 1 have broken away or melted away or the like.
  • the drive spring 15 is supported directly or indirectly axially on the expanded pipe end section 17 in the assembled state.
  • the support means that a force is actually transmitted from the drive spring 15 to the pipe end section 17. It is not necessary that this is always the case, for example, the drive spring 15 could be relaxed in the extended state of the spindle drive 1, but preferably the drive spring 15 also conducts an, in particular not insignificant, force in the extended state of the spindle drive 1 Drive connections 13, 14, a.
  • the widened pipe end section 17 secures the drive spring 15 against a movement of its nearest spring coil 19 and / or a nearest spring end 20 in the axial direction past the pipe end edge 18. In principle, however, it would also be conceivable to secure the penultimate spring turn, for example.
  • the widened pipe end section 17 secures the drive spring 15 against sudden loosening, that is, the drive spring 15 of the remaining spindle drive 1 from leaving, which is not provided in this way. Since the drive spring 15 is supported directly or indirectly on the expanded pipe end portion 17, the power transmission during the opening process is ensured.
  • Indirect support here means that there is another separate element between the drive spring 15 and the expanded pipe end section 17, via which the force during the opening process is transmitted from the drive spring 15 to the expanded pipe end section 17. In the case of direct support, no further sepa rates element between the drive spring 15 and the expanded pipe end section 17 is provided.
  • the expanded pipe end section 17 is expanded over its entire circumference.
  • the pipe end section 17 is preferably widened evenly over its entire circumference. Additionally or alternatively, the widened pipe end section 17 is widened radially in sections. On the one hand, it can be provided that, for example, only half of the circumference of the pipe end section 17 is widened, or that the pipe end section 17 is completely widened over its circumference, but is divided into several circumferential sections for relief.
  • the widened pipe end section 17 forms a continuous widened collar.
  • the expanded Rohrendab section 17 preferably has at least two, more preferably at least three, even more preferably at least four, expanded circumferential sections. As shown in FIG.
  • the spindle drive 1 has a securing element arrangement 21 with at least one securing element 22, which is arranged between the drive spring 15 and the expanded pipe end section 17.
  • the securing element arrangement 21 preferably enables continuous protection, in particular continuous support, of the drive spring 15 in the radial direction by means of fireproof materials and / or metal. It is therefore preferably the case that if all non-refractory and / or non-metal materials are thought away, a continuous connection between the drive spring 15 and the widened Rohrendab section 17 is created. It can be provided in particular that only refractory materials and / or metal are arranged between the drive spring 15 and the expanded pipe end section 17 in the axial direction.
  • the securing element 21 is made of a fire-resistant material and / or metal, the latter is therefore the case in FIGS. 3b) and c).
  • the drive connection 13 is made of plastic, as is also preferred, plastic is also arranged between the drive spring 15 and the expanded pipe end section 17 in the axial direction, as in FIG. 3a).
  • the term “fireproof” here means that the corresponding material is more fireproof than the drive connection 13 and / or a plastic part of the spindle drive 1.
  • the securing element 22 is arranged axially between the drive spring 15 and the expanded pipe end section 17 and at least partially, in particular completely, circumferentially around the spindle guide tube 8.
  • the securing element 22 is preferably designed from a fireproof material and / or a metal.
  • the securing element 22 can be in direct contact with the drive spring 15 and / or the expanded pipe end section 17.
  • the securing element 22 is disc-shaped with a central receptacle for the spindle guide tube 8 out staltet. It can be pushed very easily over the spindle guide tube 8, for example during assembly, before widening the pipe end section 17 or pushed over the spindle guide tube 8 from the other end after widening.
  • the drive spring 15 can alternatively be in direct contact with the expanded pipe end section 17 in the axial direction.
  • the drive spring 15 has here and preferably a spring wire which has at least one spring winding 19, in particular an end winding, with an inner winding radius w starting from the drive longitudinal axis 9.
  • no spring wire is arranged within the inner winding radius w along the entire drive spring 15, so that it is the overall minimum spring radius.
  • the outer end edge radius e is smaller than the inner turn radius w of the at least one spring turn 19.
  • the securing element 22, starting from the drive longitudinal axis 9, can have an inner radius i that is smaller than the outer end edge radius e is.
  • the securing element 22 can have an outer radius s which is greater than the inner winding radius w.
  • the drive spring 15 can be moved past the widened pipe end section 17 if the securing element 22 is omitted.
  • the pipe end section 17 has here and preferably a bending section 23 in which the wall of the spindle guide tube 8 has a curved course, and a securing section 24, which adjoins the bending section 23 and extends in the radial direction transversely to the drive longitudinal axis 9, in particular straight, the the drive spring 15 secures against movement along the drive longitudinal axis 9.
  • 3a) and 3c) show that the securing section 24 is bent over here and preferably by an angle 25 of approximately 90 ° over the bending section 23.
  • the securing section 24 can be bent over the bending section 23 by less than 90 ° from the spindle guide tube 8 or by more than 90 °.
  • the securing section 24 ends here and preferably at the pipe end edge 18, so that the pipe end section 17 only consists of the bending section 23 and the securing section 24.
  • the angle 25 is shown in FIG. 3.
  • the first drive connection 13 has a connection section 26.
  • the connection section 26 is here and preferably directly connected to the spindle guide tube 8.
  • the connection section 26 preferably protrudes into the spindle guide tube 8 and is connected to the spindle guide tube 8 from the inside with a material fit and / or a form fit and / or a force fit.
  • Fig. 3a shows an alternative embodiment, which, however, can also be provided in addition.
  • the connection section 26 engages behind the widened pipe end section 17 and, in particular, engages with it in a form-fitting manner.
  • the securing element 22 or the at least one drive spring 15 and / or the spindle guide tube 8 is here and preferably made of metal. Additionally or alternatively, the first drive connection 13 and / or the second drive connection 14 can be configured from a plastic material. According to a further teaching, which is of independent importance, a spindle drive 1 for a closure element 2 of a motor vehicle 3 is proposed, in which a drive unit 4 and a spindle-spindle-nut gear 5 with spindle 6, spindle nut 7 and, which is connected downstream of the drive unit 4 in terms of drive technology Spindle guide tube 8 for generating drive movements on along a drive longitudinal axis 9 are provided.
  • the spindle 6 meshes with the spindle nut 7 and the spindle guide tube 8 is connected to the spindle nut 7 in an axially fixed manner.
  • the spindle guide tube 8 is telescopically adjustable to the spindle 6 along the drive longitudinal axis 9.
  • the spindle 6 runs in a spindle guide region 12 of the spindle guide tube 8 in the spindle guide tube 8.
  • the spindle drive 1 has drive connections 13, 14 for diverting the drive movements to.
  • the drive connections 13, 14 can be adjusted relative to one another between a retracted state and an extended state by means of the drive unit 4 along the longitudinal drive axis 9.
  • a first drive connection 13 of the drive connections 13, 14 is connected axially fixed to the spindle guide tube 8.
  • a second drive connection 14 of the drive connections 13, 14 is axially fixedly connected to the spindle 6.
  • a drive spring 15 in particular a helical compression spring, is provided for generating drive movements along the drive longitudinal axis 9.
  • the drive spring 15 acts on the drive connections 13, 14.
  • the drive spring 15 has at least one spring turn 19, in particular an end turn, with an inner turn radius w.
  • the spindle guide tube 8 has a first outer radius a along at least one axial section of the spindle guide region 12 starting from the drive longitudinal axis 9.
  • the spindle guide tube 8 has a tube section 27 on its side facing the first drive connection 13, that the tube section 27 is at least partially expanded radially, in particular bent up, that the tube section 27 is in the open- widened area has a maximum tube outer radius r which is smaller than the inner winding radius w, that the spindle drive 1 has a securing arrangement 21 with a securing element 22, that on the drive spring side of the tube section 27 the securing element 22 is arranged around the spindle guide tube 8 that the securing element 22 secures the drive spring 15 via the pipe section 27 against movement along the drive longitudinal axis 9.
  • the drive connections 13, 14 can each be coupled to a counter-articulation part on the motor vehicle side.
  • At least the first drive connection 13, here and preferably both drive connections 13, 14, has or have a bearing section 28 for coupling to the counter-joint part, in particular a ball socket or a ball head, as well as a connection section 26 connected directly to the spindle guide tube and a Bearing section 28 with the connecting section 26 connecting connecting section 29.
  • the drive connection 13 or, in particular, both drive connections 13, 14 are at least partially, preferably completely, made of plastic. Additionally or alternatively, the drive connection 13 or both drive connections 13, 14 can be designed in one piece.
  • a spindle drive 1 for a locking element 2 of a motor vehicle 3 is proposed, with a drive unit 4 and a spindle-spindle-nut gear 5 with spindle 6, spindle nut 7 and spindle guide tube 8 for generating Drive movements along a drive longitudinal axis 9 are provided.
  • the spindle 6 meshes with the spindle nut 7.
  • the spindle guide tube 8 is axially fixed to the spindle nut 7 and can be adjusted telescopically to the spindle 6 along the drive longitudinal axis 9.
  • the spindle 6 runs in a spindle guide region 12 of the spindle guide tube 8 in the spindle guide tube 8.
  • the spindle drive 1 has drive connections 13, 14 for diverting the drive movements to.
  • the drive connections 13, 14 can be adjusted relative to one another along the drive longitudinal axis 9 by means of the drive unit 4, a first drive connection 13 of the drive connections 13, 14 being axially fixed to the spindle guide tube 8 and a second drive connection 14 of the drive connections 13, 14 being axially fixed to the Spindle 6 is the verbun.
  • the spindle drive 1 has a drive spring 15, in particular a helical compression spring, for generating drive movements along the drive longitudinal axis 9.
  • the drive spring 15 acts on the drive connections 13, 14.
  • the spindle guide tube 8 has a first outer radius a along at least one axial section of the spindle guide region 12 starting from the drive longitudinal axis 9.
  • the spindle guide tube 8 has a tube section 27 on its side facing the first drive connection 13, that the tube section 27 is at least partially expanded radially, in particular that the tube section 27 is against movement along the drive spring 15 of the drive longitudinal axis 9 ensures that the first drive connection 13 has a bearing section 28 for coupling to the mating joint part, in particular a ball socket or a ball head, as well as a connection section 26 connected directly to the spindle guide tube 8 and a connection section connecting the bearing section 28 to the connection section 26 29 and that the drive connection 13 is designed in one piece. All statements about the first two teachings may be referred to in relation to the third teaching and reciprocally.
  • the spindle guide tube 8 behind the tube section 27 in the axial direction to the drive connection 13 has an end section which has an end outer radius that is smaller than the maximum tube outer radius r.

Landscapes

  • Power-Operated Mechanisms For Wings (AREA)
  • Transmission Devices (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

L'invention concerne un entraînement à broche pour un élément de fermeture (2) d'un véhicule à moteur (3). Selon l'invention, il est prévu une unité d'entraînement (4) et une transmission à broche et à écrou de broche (5), montée en aval, et comportant une broche (6), un écrou de broche (7) et un tube de guidage de tige (8) destiné à générer des mouvements d'entraînement le long d'un axe longitudinal d'entraînement (9), l'entraînement à broche (1) comportant des raccords d'entraînement (13, 14) destinés à faire sortir les mouvements d'entraînement et pouvant se déplacer les uns par rapport aux autres, un premier raccord d'entraînement (13) étant relié solidaire axialement au tube de guidage de broche (8), un second raccord d'entraînement (14) étant relié solidaire axialement à la broche (6), un ressort d'entraînement (15) étant destiné à générer des mouvements d'entraînement le long de l'axe longitudinal d'entraînement (9) agissant sur les raccords d'entraînement (13, 14), le tube de guidage de broche (8) présentant un rayon extérieur (a) le long d'au moins une partie axiale . Selon l'invention, le tube de guidage de broche (8) présente sur sa face tournée vers le premier raccord d'entraînement (13) une partie terminale de tube (17) dotée d'une arête terminale de tube (18), la partie terminale de tube (18) est élargie radialement sur au moins une partie de sa périphérie, de sorte que l'arête terminale de tube (18) présente un rayon d'arête terminale (e) extérieur, qui est supérieur au premier rayon extérieur (8a) et de sorte que la partie terminale de tube élargie (17) empêche le ressort d'entraînement d'effectuer un mouvement le long de l'axe longitudinal d'entraînement (9).
EP21724212.2A 2020-05-04 2021-04-30 Entraînement à broche pour élément de fermeture d'un véhicule à moteur Pending EP4146893A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020111986.0A DE102020111986A1 (de) 2020-05-04 2020-05-04 Spindelantrieb für ein Verschlusselement eines Kraftfahrzeugs
PCT/EP2021/061419 WO2021224132A1 (fr) 2020-05-04 2021-04-30 Entraînement à broche pour élément de fermeture d'un véhicule à moteur

Publications (1)

Publication Number Publication Date
EP4146893A1 true EP4146893A1 (fr) 2023-03-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP21724212.2A Pending EP4146893A1 (fr) 2020-05-04 2021-04-30 Entraînement à broche pour élément de fermeture d'un véhicule à moteur

Country Status (5)

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US (1) US20230175302A1 (fr)
EP (1) EP4146893A1 (fr)
CN (1) CN115552092A (fr)
DE (1) DE102020111986A1 (fr)
WO (1) WO2021224132A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102023109300B3 (de) 2023-04-13 2024-05-08 Stabilus Gmbh Linearantrieb für ein Verschlusselement eines Kraftfahrzeugs

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DE20321710U1 (de) * 2002-11-02 2009-01-22 Suspa Holding Gmbh Längenverstellbares Betätigungselement
US7566092B2 (en) * 2004-08-06 2009-07-28 Magna Closures Inc. Electromechanical strut
DE112008002124B4 (de) * 2007-08-06 2022-01-20 Delphi Technologies, Inc. Linearantriebsaktuator für ein bewegliches Fahrzeugpaneel
DE112014002381T5 (de) * 2013-05-13 2016-01-21 Magna Closures Inc. Verschlussplatten-Gegengewichtsmechanismus mit Reibungsvorrichtung
DE102014105956B4 (de) 2014-04-29 2023-11-09 Brose Fahrzeugteile Se & Co. Kommanditgesellschaft, Bamberg Linearantrieb für ein Verstellelement eines Kraftfahrzeugs
DE102015110089A1 (de) * 2014-06-27 2015-12-31 Magna Closures Inc. Elektromechanische Strebe mit integrierter Flexkupplung und Schlupfvorrichtung und zugehörige Kupplungs-/Kopplungs-Anordnung
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Also Published As

Publication number Publication date
CN115552092A (zh) 2022-12-30
DE102020111986A1 (de) 2021-11-04
US20230175302A1 (en) 2023-06-08
WO2021224132A1 (fr) 2021-11-11

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