• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The actuating device (3 ) comprises a first actuating element (35) and a second actuating element (36), which second actuating element (36) is arranged between the housing (1) and the pawl (4) and at least one wedge-shaped active surface (53) for engagement with a counter-acting surface (53). 56) on the pawl (4) is formed. The second actuating element (36) is formed with the wedge-shaped active surface (53) by a non-cutting component. The pawl (4) is pivotally mounted on the housing (1) and comprises a pivot bearing portion and extending from this in opposite directions arm portions (60, 61). The first arm portion (60) forms a locking cam (62) and the second arm portion (61) a support surface (64), wherein a return spring (69) between the support surface (64) and a support surface (67) of the housing (1) is.
    公开号:AT511578A1
    申请号:T18002011
    申请日:2011-12-06
    公开日:2012-12-15
    发明作者:
    申请人:Stiwa Holding Gmbh；
    IPC主号:
    专利说明:

    • 4 · 25 14:11:54 06-12-2011 5/31 I «· V *
    The invention relates to a parking brake for a motor vehicle transmission, in particular automatic transmission or automated manual transmission, as described in the preamble of claims 1 and 12.
    Motor vehicles in which at rest, therefore when the drive motor and shut off power supply, no reliable mechanical connection between the drive motor and the gearbox and thus a backup against rolling by inserting a small gear is possible, have a form-locking effective parking lock to block the output drive train on. Parking locks are provided in motor vehicles that are equipped with automated manual transmissions and Doppelkuppiungsgetrieben, especially in these types of transmissions, the automated insertion of a small gear for detecting the motor vehicle is not guaranteed at least in case of failure.
    Such parking locks comprise a ratchet wheel mounted in a rotationally fixed manner on an output gear of the transmission and a pawl pivotable about a bearing axis between a release position and a blocking position. The ratchet wheel has a plurality of distributed on its outer circumference arranged Spermuten. By pivoting the pawl in a locking division a sperm cams of the pawl is brought into one of the locking grooves of the ratchet engaged and thus the output shaft and the determined via an axle drive with this related drive wheels of the motor vehicle relative to the transmission housing. As a result, the relevant motor vehicle is reliably secured against rolling away. For engaging the pawl in a locking division and for disengaging the pawl in a release position an actuator * * «· 4« < 25 14:12:32 06-12-2011 6/31 provided. This comprises an actuating rod, an actuating element arranged thereon and a return spring holding the locking pawl in its release position. The actuating element forms an active surface with a wedge surface, with which there is or can be made contact with a counteracting surface of the pawl spaced from the bearing axis.
    By a longitudinal displacement of the Betätigungsseiementes the pawl is pressed against the restoring force of the return spring in the blocking division. In order to ensure a safe engagement of the parking brake even with nichtfiuchtender Spermut with the pawl, the actuator on the actuating rod is limited axially movable and loaded by a arranged on the actuating rod compression spring, so that the actuating element then caused by a slight rolling movement of the motor vehicle Rotation of the ratchet wheel in the next alignment of the nearest Spermut with the locking cam of the pawl automatically pushes them into the blocking position.
    Such parking locks are known from DE 10 2004 037 982 A1, DE 10 2005 001 546 A1 and DE 10 2008 011 115A1. According to DE 10 2004 037 982 A1, DE 10 2005 001 546 A1, the actuating elements are rotationally symmetrical engaging body, which form a cone portion with a cone shape and are limited axially movable on the actuating rod against the restoring force of the compression spring. According to DE 10 2008 011 115 A1, the actuating element is a clamping piece which is limited axially movable on the actuating rod against the restoring force of the compression spring.
    The actuating element and the actuating rod form a multi-part assembly. This leads to a structurally complex solution and complicates the installation of the actuator. Are several components necessary to perform the switching function, a higher susceptibility is given.
    From DE 103 10 977 A1 discloses a parking brake is known, which aulweist on the gear housing about a bearing axis between a release position and a locking position pawl. For engaging the pawl in a locking position and for disengaging the pawl in a release position is a 25
    #
    14:13:15 06-12-2011 7/31 3
    Actuator provided. This comprises a disposed between the gear housing and the pawl actuator and the pawl in its release position retaining return spring. The actuating element is a rotationally symmetrical engagement body, which forms a cylindrical section and conical section with a cone shape. In the blocking division of the pawl is the actuator with its cylindrical portion between the gear housing and the pawl. This known construction lacks a guide structure for the actuating element.
    The object of the invention is to provide a cost-effective parking brake for a motor vehicle transmission, which allows a reliable switching function with a simple structural design.
    The object of the invention is solved by the features in claim 1. It is advantageous that the one-piece actuator to low box in the sufficient for the reliable switching function precision can be produced. According to a preferred embodiment, the actuating element is made of metallic material, in particular made of thin sheet steel. The thin sheet material allows for almost unlimited designs of the actuator. Also, the large-scale production with simple tools is possible due to the simple design of the actuator and machining can usually be omitted. Likewise, compared with the known from the prior art actuators of the consumption of material for the production of the actuating element is low and also the weight of the parking brake can be reduced. The actuator may be formed according to an embodiment by a stamped sheet steel part, which is made of a flat steel sheet as a starting material. The actuator can be made very economical and withstand high torsional and modulus when it is another embodiment of a thin sheet-formed punched and formed part. The actuator has in this fold of a plane perpendicularly projecting edges, which form the inclined active surfaces. Also, the actuator may be a non-cutting molded part, which is produced by the extrusion process or by forging 25:14:00 06-12-2011 8/31 * t. The actuator may instead of a metallic material but also made of plastic with or without fiber reinforcement, or a composite material made of plastic and metal.
    Also advantageous is the storage of the second actuating element at its two opposite end portions, as described in claims 2 to 5. As a result, even after countless switching movements of the pawl between the locking position and release position and the associated wear and fatigue on the components concerned an exact guidance of the second actuator relative to the housing-safe and made the switching function reliably. The leadership of the second actuator decoupled from the pawl, now allows the production of a simple design actuator with approximately rectangular cross-section. The rectangular cross-section also has the advantage that the actuating element is held against rotation on the guide device.
    According to the measure of claim 6, a particularly compact design of the actuator is achieved by reducing the number of components and can be minimized in the transmission housing required for installation of the parking brake assembly space.
    Due to the advantageous embodiments according to claims 7 and 8 on the one hand, the Sperrfiinktion and on the other hand, the reset function of the pawl can be reliably met even after countless switching movements of the pawl between the blocking position and release position. In particular, the bias in the return element can be selected low by the leverage and yet the pawl is reliably held in the release position. According to an advantageous embodiment, the pawl is a chipless shaped component and is also not required for attachment of the Rücksteüelementes on the pawl machining the same.
    According to an advantageous embodiment of the invention according to claim 9, the return element is a leaf spring. The use of a leaf spring has the advantage of «4 * · 25 14:14:42 06-12-2011 9/31
    • 4 4 mounting between the pawl and the housing is easier than with coil springs or torsion springs, which are difficult to handle during installation. Also requires a leaf spring less installation space than a spiral or leg spring.
    Due to the eccentric mounting of the leaf spring relative to the bearing axis of the pawl this can be biased to a bow and thus ensure that even after countless switching movements of the pawl between the blocking position and release position, the pawl in unactuated operating condition is reliably maintained in the release position. The leaf spring is mounted captive over the Ausneh-mungen / mounting elements between the housing and the pawl. Also, the assembly of the leaf spring by the Ausnehmun gene / Montageiemente designed very simple and can be carried out automatically. The assembly of the leaf spring is further simplified if the recesses are made larger in the direction of the longitudinal extent of the leaf spring than the width of the mounting elements.
    The object of the invention is also solved by the features in claim 12. An advantage is that on the one hand, the blocking function and on the other hand, the reset function of the pawl can be reliably met even after countless switching movements of the pawl between the blocking position and release position. In particular, can be selected low by the leverage, the bias in Rückstelielement and yet the pawl is reliably held in the release position. According to an advantageous embodiment, the pawl is a chipless shaped component and is also not required for attachment of the rear part element to the pawl machining the same.
    An advantageous embodiment of the parking brake is described in claim 13.
    For a better understanding of the invention, this will be explained in more detail with reference to the following figures. 25 14:15:22 06-12-2011 10/31 «* · · · * ·« «# *% ··« «6
    Each shows in a highly schematically simplified representation:
    Figure 1 shows a parking lock according to the invention with a held in the release position pawl in side view.
    FIG. 2 shows the parking lock according to FIG. 1 with a pawl pivoted into the blocking position in side view;
    Fig. 3, the parking brake of Figure 1 in a perspective view.
    FIG. 4 shows the parking lock according to FIG. 1 in a perspective view; FIG.
    Fig. 5, the parking brake of Figure 1 with removed bearing pin in perspektivi shear view.
    Fig. 6 is an actuating element of a Betätigungsvonichtung the parking brake of FIG. 1 in a perspective view.
    By way of introduction, it should be noted that in the differently described embodiments, the same parts are provided with the same reference numerals or the same component names, wherein the disclosures contained in the entire description can be mutatis mutandis to the same parts with the same reference numerals or component names. Also, the location information chosen in the description, such as top, bottom, side, etc. related to the immediately described and illustrated figure and are to be transferred to the new situation mutatis mutandis when a change in position.
    In Figs. 1 to 5, a parking brake for a motor vehicle transmission, in particular automatic transmission, shown in different views. The parking brake comprises a housing 1, a Rastierungsvorrichtung 2 for locking switch positions, an actuator 3, a pawl 4 and a ratchet wheel 5. The housing 1, the Rastierungsvorrichtung 2, the actuator 3 and pawl 4 form a parking brake assembly. The ratchet wheel 5 is rotatably connected, for example via a serration with an output shaft of the transmission, not shown, and has a plurality of distributed over its outer circumference arranged Spermuten. 25 14:16:01 06-12-2011 11/31
    7
    The housing 1 has housing components 6, 7, 8, 9, the housing components 6, 7 being held over the housing component 8 at a distance. The housing components 6, 7, 8, 9 are each formed by a punched metal sheet formed from thin sheet metal * and / or formed part. The wall thickness of the housing components 6, 7, 8, 9 preferably made of thin sheet steel is between 2 mm and 5 mm, for example 3 mm. The housing components 6, 7, 8, 9 are already produced with the finished dimension, so that post-processing can be omitted. The housing components 6,7,8,9 are applied with their mutually facing joining surfaces against each other and in joining areas formed by the juxtaposed, overlapping surface portions each connected by beam welding, in particular electron beam welding or laser welding, joining seams 10,11 firmly connected. The FQ seams 10, 10 form a fluid joining connection. The described joint seams may alternatively be formed by adhesive or soldered seams to the welds. As can be seen in the figures, the housing components 6, 7, 9 are provided with bearing bores 12, 13, through which bearing bolts 14 are guided. The bearing bores 12, 13 are to be cut by punching and forming, in particular cold forming. The parking lock assembly is mounted on the bearing pin 14 in a transmission housing, not shown.
    The Rastierungsvonrichtung 2, as well visible in Fig. 5, comprises a Rastie-insurance segment 15, a detent element 16, optionally a guide member 17, a switching shaft 18, a pivot lever 19 and a spring element 20. The sound wave 18 is connected via a switching mechanism, not shown a selector lever in the passenger compartment and rotatably mounted on a bearing bore 21 on the housing member 8. The Rastierungssegment 15 is rotatably connected to the shift shaft 18. Preferably, a form-locking connection is formed between the Rastierungssegment 15 and the switching shaft 18 For this purpose, a plug-in receptacle 22 is formed with an internal toothing in a bearing portion of the Rastierungssegmentes 15, through which the switching shaft 18 is performed. The shift shaft 18 engages with an external toothing in the internal toothing. On the other hand, the rotationally fixed connection between the Rastierungssegment 8 and the shift shaft 16 may also be formed by a fuel-efficient joint or frictional connection.
    The Rastierungssegment 15 is further formed in a peripheral portion opposite the bearing portion with a, locking cams and detent recesses having switching path 23 to lock the pawl 4 in the disengaged release position (Fig. 1) and in the engaged blocking position (Fig. 2) are the registered detent recesses 24a , 24b provided. The Rastvertiefi gene 25 are provided for locking of other switching positions, such as reverse position R, neutral position N and driving position D.
    As can be seen, the locking element 16 engages in the switching path 23. According to the embodiment shown, the locking element 16 is formed by a rolling profile applied to the switching path 23 Führungsrofle The guide roller is rotatably mounted on an axis parallel to the shaft 18 axis 26 on the pivot lever 19. The width of the guide roller is greater than a wall thickness of the Rastie-insurance segment 15, so that a clean management function of the guide roller is always ensured on the switching path 23. The guide roller is preferably made of a wear-resistant plastic. The Rastierungselement 16 is preferably a thin sheet steel by punching and uniforms, in particular cold forming, produced without cutting punching and forming. The Rastierungselement 16 is already made with the finished size, so that post-processing can be omitted.
    Also, it proves advantageous if in addition a guide member 17 is provided, which is mounted on the pivot lever 19 and a Rastierungssegment 15 facing guide surface 27 forms, on which the Rastierungssegment 15 can slide slidably with its underside. According to the embodiment shown, the detent element 16 is mounted on the axis 26 between the guide element 17 and the pivot lever 19. The guide element 17 is preferably made of a metallic material.
    The pivoting lever 19 is rotatable about a hinge arrangement 28 with its first end portion about a pivot axis parallel to the switching shaft 18 25 14:17:27 06-12-2011 13/31 * · · * *
    9 on the housing 1, preferably mounted on the housing member 6. The joint arrangement 28 is formed by a bearing collar 29 provided on the housing 1, preferably on the housing component 8, and a bearing bore 30 provided in the first end portion of the pivoting lever 19. The bearing collar 29 (FIG. 1) is manufactured according to the embodiment shown with the housing component 8 in one piece in a stamping and forming process. For axial securing of the rotary joint between the pivot lever 19 and the housing 1 or Gehäusebauteii 8 a bead 31 is formed from. The detent element 16 and optionally the guide element 17 are mounted on the projecting second end portion. The pivoting lever 19 is further provided in a central portion between the end portions with a tab 32 (pivot point) to which the spring element 20 can be fastened with a first end The second end of the spring element 20 is on a tab 33 which on the housing 1, preferably on Gehäusebauteii 7 is formed, fastened. The spring element 20 acts with a spring force on the pivot lever 19, so that the detent element 16 abuts against the switching path 23 with a contact force. According to the embodiment shown, the spring element 20 is a tension spring, which is hooked with its ends on the tabs 32, 33. The pivot lever 19 is preferably a thin sheet steel by punching and forming, in particular cold forming, produced without cutting punching and forming. It is already manufactured with the finished dimension, so that post-processing can be omitted.
    In order to minimize the space-saving design of the parking lock assembly and thus the installation space in the gear housing, 6.7 recesses 34 are formed in the housing components, of which the recess 34 in Gehäusebauteii 6 from the second end of the pivot lever 19 and the recess 34 in Gehäusebauteii 7 of Bearing portion of Rastierungssegmentes 15 are enforced. In addition, a weight saving of the parking brake assembly is achieved.
    The actuating device 3 for engagement and disengagement of the pawl 4 comprises a first actuating element 35 (actuating lever) and second actuating element 36 (detent rod) and a guide device. The first actuation element 35 is connected in a rotationally fixed manner to the selector shaft 18 and provided with a guide receptacle 37. According to the embodiment shown, the first actuating element 35 is a pivot lever which has a bearing section 38, a support section 39 and an intermediate section 40 connecting them to one another. The support portion 39 is provided with the Fühngsaufnahme 37. Preferably, a form-locking connection is formed between the actuating element 35 and the switching boring 18. For this purpose, a plug-in receptacle 41 is formed with an internal toothing in a bearing portion of the Betätigungsseiementes 35, through which the switching shaft 18 is performed. The shift shaft 18 engages with an external toothing in the internal toothing. On the other hand, the rotationally fixed connection between the actuating element 35 and the switching shaft 18 may also be formed by a fluid joining connection or frictional connection.
    As can also be seen in the figures, the housing 1, in particular the housing component 6, is provided with a guide receptacle 42. The guide frames 37, 42 form the guiding device of the actuating device 3.
    The guide receptacles 37,42 are formed by guide slots and form each opposite FUhrungsflächen 43 and opposing boundary surfaces 44 from. The guide surfaces 43 define a guide brake, which is dimensioned such that the second actuating element 36 is slidably mounted between the guide surfaces 43. The boundary surfaces 44 define a path of movement of the second actuator 36. In FIG. 6, the plate-shaped second actuator 36 is shown, which includes a front bearing portion 45 and rear bearing portion 46 and is integrally formed. Between the bearing portions 45, 46, an actuating portion 47, a locking portion 48, a receiving portion 49 is formed. To the rear bearing portion 46 may further connect a stopper portion 50. The bearing sections 45, 46 respectively form opposing guide surfaces 51 and opposing abutment surfaces 52. The 25 14:18:52 06-12-2011 25 15/31
    • · · • • • * * * * *
    11
    Actuator 36 has in the operating portion 47 inclined to each other running surfaces 53 and in the locking portion 46 at a distance mutually parallel locking surfaces 54. In the receiving portion 4Θ 36 extending shoulder surfaces 55 are formed transversely to the longitudinal extent of the actuating element, against which a spring element 58 can be supported. For axially fixing the actuating element 36 relative to the housing 1, the stopper portion 50 has a larger cross-sectional dimension than that of the guide receptacle 37. The second actuating element 36 is produced according to the embodiment shown in one piece from sheet metal in a punching process with the sections 45 to 50. The wall thickness of the plate-shaped actuating element 36, preferably made of thin sheet steel without cutting, is between 2 mm and 6 mm, for example 4 mm. Thus, the second actuator 36 is a chipless shaped stamped part with a constant wall thickness, which can be realized very easily and inexpensively.
    A particularly economical production of the second actuating element 36 can be realized if for the actuating element 36 a flat Blechstrei fen, preferably endless from a coil, a punching device, in particular a progressive compound, and is passed through them. In this case, the sections 45 to 50 are formed from the sheet metal strip in a punching process in one or more steps. The production of the actuating element 36 can be virtually free of cuts and produced in the functional areas, therefore in sections 45 to 50 to the required dimensional and dimensional tolerance. A mechanical reworking in sections 45 to 50 is not required.
    If a high surface pressure between the counter and effective surfaces 53, 56 and / or blocking surfaces 54, 57 is to be expected, then the active surfaces 53 and / or blocking surfaces 54 can be enlarged by forming, in particular cold forming, of the actuating and / or locking section 47, 46 become.
    According to another embodiment (not shown), the actuating element 36 has perpendicularly projecting edges on the plane of the sheet, which edges engage at their respective ends. 25 14:19:34 06-12-2011 25 16/31 · »· · · ···
    12 of the opposite side surfaces in the bearing portions 45,46 the spaced parallel to each other guide surfaces 51, in the operating portion 47, the inclined active surfaces 53 and 48 in the blocking portion 48 at a distance mutually parallel locking surfaces 54 form. The actuating element 36 is designed in this case in cross-section perpendicular to its longitudinal extension, for example, U-shaped. The production takes place without cutting by punching and forming, in particular cold forming.
    Also, the actuator 36 may be designed as a self-contained profile body or pipe profile.
    As shown in Fig. 3, the housing 1 and the pawl 4 each form a counter-acting surface 56 and locking surface 57, wherein the counter-acting surface 56 inclined to run towards each other and the locking surfaces 57 at a distance parallel to each other. According to the embodiment shown, the upper counter-acting surface 56 and the upper blocking surface 57 of the housing 1 are formed by the housing component 9 and are produced without cutting by punching and forming. The lower counteracting surface 56 and lower blocking surface 57 are formed by the pawl 4 and preferably produced without cutting. The second actuating element 36 is provided with its front bearing section 45 in the guide receptacle 42 formed in the housing component 6 and its rear bearing section 46 in the guide receptacle 37 formed in the first actuating element 36 mounted and arranged at a radial distance from the bearing axis 59 between the pawl 4 and the housing member 6.
    Another (not shown) execution of the storage of the second actuating element 36 is that this is in turn stored in a Gehäusebauteii formed in the first housing section 6 first guide receptacle 37 and its rear bearing portion 46 in a formed in the housing member 7 second guide receptacle with its front bearing section 45.
    Furthermore, the actuating device 3 for engagement and disengagement of the pawl 4 comprises a spring element 58, which is biased between the first actuating element 35 and the second actuating element 36. The biasing force is preferably selected so that the active surfaces 53 of the second actuating element 36 abut against the counteracting surfaces 56 of the housing 1 13 25 14:20:16 06-12-2011 17/31 •. # *. The spring element 58 is applied with a first end against the shoulder surfaces 55 and with a second end against the support portion 39 of the first Betätigungselemen-tes 35 The spring element 58 is for example a compression spring.
    The pawl 4, as can be seen in FIGS. 1, 2 and 4, is arranged according to the embodiment shown between the housing components 6, 9 and by means of the mounting device 3 about a bearing axis 59 between the locking position, in which the sperm cam with the ratchet wheel 5 is engaged, and release position in which the sperm cam is decoupled from the ratchet wheel 5, pivotally mounted on the housing 1. As a result, not only the positional position of the pawl 4 in the axial direction of the bearing shaft 5fi is ensured, but also the high load forces resulting in the blocking pitch (FIG. 2) of the pawl 4 are optimally introduced into the housing 1 and transmitted via this into the transmission housing. The pawl 4 comprises a bearing portion 59 aufhehmenden pivot bearing portion and of this in the opposite direction eistreckende arm portions 60, 61st
    The first arm section 60 forms on a side facing the circumference of the ratchet wheel 5 underside and spaced from the bearing axis 59 sperm cams 62. The sperm cam 62 is used for locking engagement in one of the locking grooves 63 of the ratchet wheel 5. The second arm portion 61 forms on a circumference of the ratchet wheel 5 facing away from a top surface 64 and optionally a StQtzlasche 65.
    On the housing 1, a support portion 66 is further provided, which forms on one of the pawl 4 facing underside a support surface 67 and optionally a support tab 68.
    Between the support surface 64 on the second arm portion 61 and the support surface 67 on the support portion 66, a return spring 69 is arranged, which is a leaf spring according to the embodiment shown. By the return spring 69, the pawl 4 is in the rest state with its first arm portion 60 against the bearing portion 45 or 45 with the Sperrfiäche 57 against the abutment surface 52 of the second actuating element pressed second actuator 36 and thus held in an unlocked release position (Fig. 1 and Fig. 3).
    The leaf spring is provided according to the embodiment shown in its opposite end regions each with a window-like recess 70, wherein in the assembled state of the leaf spring, the support tabs 65,68 project into the recesses 70. The leaf spring is biased arcuately between the housing 1 and the pawl 4 and the support surfaces 64,67. The recesses 70 are punched out of the leaf spring. The assembly of the leaf spring on the support plates 65,68 can be significantly simplified if the length of the recess 70 is greater than the width of the support tab 65, 68, as shown in Fig. 5 recognizable.
    According to another embodiment, it is also possible that the opposite ends of the leaf spring on the support surfaces 64,67 with the second Armab-section 61 and the support portion 66 via Verbindungsmittei, such as screws, rivets and dgi. firmly connected. In this case, the recesses 70 and support tabs 65, 68 are not required.
    Next, the operation of the parking lock will be described with reference to FIGS. 1, 2, 3 and 5. If the parking position P is selected with the selector lever in the passenger compartment, the locking segment 15 and the first actuating element 35 are simultaneously moved by the rotation of the selector shaft 18. The locking element 16 follows during the relative movement between the housing 1 and the Rastierungssegment 15 of the shadow track 23 and is moved from the locking recess shown in Fig. 5 24a for the neutral position on the locking cam in the locking recess 24b shown in Fig. 5 for the parking position. During the relative movement between the housing 1 and the first actuating element 35, a force is exerted on the second actuating element 36 in the direction of the pawl 4 and by a parallel to the bearing axis 59 extending axial movement of the second actuating element 36 - as indicated by arrow 71 in FIG. 3 - the pawl 4 by means of the counter and active surfaces 53, 56 (wedge surfaces) against the restoring force of the return spring 69 in 14:21:41 06-12-2011 19/31 25 14:21:41 06-12-2011 19 / 31 25
    Pivoted the blocking division (Fig. 2), in which the locking cam 62 is in locking engagement with one of the locking grooves 63 of the ratchet wheel 5. In the locked position, the second actuating element 36 is supported with the locking surfaces 54 on the one hand against the locking surface 57 of the housing 1 and on the other hand against the locking surface 57 of the pawl 4. Furthermore, in the blocking position, the first actuating element 35 and the second actuating element 36 are locked by the mutual engagement of Rastierungselementes 16 with the Rastierungsvertiefung 24 b in their relative position.
    Stand the sperm cams 62 and one of the locking grooves 63 not in an alignment position, the safe engagement of the pawl 4 is still ensured by the actuator 3. In this case, in the manner described above, first the first actuating element 35 is pretensioned via the switching shaft 18 relative to the housing 1 and the spring element 58 between the actuating elements 35, 36. The first actuating element 35 is locked by the mutual engagement of the Rastierungselementes 16 with the Rastierungsvertiefung 24 b in its relative position. The second actuating element 36 is constantly acted upon by the actuating force of the preloaded spring element 58 in the direction of the pawl 4 -according to the arrow 71 in FIG.
    As soon as a Spermut 63 with the sperm cam 62 comes into alignment with a rotation of the ratchet wheel 5 caused by a slight rolling of the motor vehicle, the pawl 4 is automatically engaged under the action of the biasing spring element 58 in the blocking position.
    The embodiments show possible embodiments of the parking brake, it being noted at this point that the invention is not limited to the specifically illustrated embodiments thereof. but rather also various combinations of the individual variants are possible with each other and this possibility of variation due to the doctrine of technical action by objective invention in the skill of those working in this technical field is the expert. Thus, all conceivable design variants, which are possible by combinations of individual details of the embodiment shown and described, are also included in the scope of protection.
    For the sake of clarity, it should finally be pointed out that, for a better understanding of the axle construction of the parking brake, these or their components have been shown partly out of scale and / or enlarged and / or reduced in size.
    Above all, the individual embodiments shown in FIGS. 1 to 6 can form the subject of independent solutions according to the invention.
    Reference numeral 1 housing 2 Rastierungsvonichtung 3 actuator 4 pawl 5 ratchet wheel 6 housing component 7 housing component 8 housing component 9 housing component 10 joining seam 11 joining seam 12 bearing bore 13 bearing bore 14 bearing pin 15 Rastierungssegment 16 Rastierungselement 17 guide member 18 shift shaft 19 pivot lever 20 spring element 21 bearing bore 22 plug receptacle 23 switching path 24 latching recess 25th Locking recess 26 Axis 27 Guide surface 28 Joint arrangement 29 Bearing collar 30 Bearing bore 31 Beading edge 32 Tab 33 Tab 34 Recess 35 Actuator 36 Actuator 37 Guide receptacle 38 Bearing section 39 Support section 40 Intermediate section 41 Plug receptacle 42 Guide receptacle 43 Guide surface 44 Boundary surface 45 Bearing section 46 Bearing section 47 Actuating section 48 Barrier section 49 Bearing section 50 Stop section 51 guide surface 52 stop surface 53 effective surface 54 blocking surface 55 shoulder surface 56 counterw irkfläche 57 Locking surface 58 Spring element 59 Bearing axis 60 Arm section 61 Arm section 62 Spermock 63 Spermut 64 Support surface 65 Supporting tab 66 Supporting section 67 Supporting surface 68 Supporting tab 69 Return spring 70 Recess 71 Axial movement
    权利要求:
    Claims (13)
    [1]
    14:22:47 06-12-2011 21/31 25 Patent Claims 1. Parking lock for a motor vehicle transmission, in particular automatic transmission or automated manual transmission, with a housing (1), a ratchet wheel (5), an actuator (3) and one over the Actuating device (3) between a release position and blocking pitch adjustable pawl (4), wherein the actuating device (3) comprises a first actuating element (35) and a second actuating element (36), which second actuating element (36) between the housing (1) and Pawl (4) is arranged and at least one wedge-shaped active surface (53) for engagement with a counter-acting surface (56) on the pawl (4) is formed, characterized in that the second actuating element (36) with the wedge-shaped active surface (53) by a non-cutting produced component, in particular chipless shaped sheet metal part, such as punching and / or forming part is formed.
    [2]
    2. Parking brake according to claim 1, characterized in that the second actuating element (36) forms a front bearing portion (45) and rear bearing portion (46).
    [3]
    3. Parking brake according to claim 1 or 2, characterized in that the parking brake has a guide device (37,42) and the second actuating element (36) with its front bearing portion (45) and its rear bearing portion (46) on the guide device (37,42 ) is stored
    [4]
    4. parking brake according to claim 3, characterized in that the second actuating element (36) with its front bearing portion (45) in a on the housing (1) hatched first bearing receptacle (42) and its rear bearing portion (46) in one of the first actuating element ( 36) formed second bearing receptacle (37) is mounted. 14:23:24 06-12-2011 22/31 25 • *


    [5]
    5. parking brake according to claim 3, characterized in that the second actuating element (36) with its front bearing portion (45) in a housing (42) formed first bearing receptacle and its rear bearing portion (46) in one of the housing (1) formed second Bearing is stored.
    [6]
    6. parking brake according to claim 1, characterized in that a spring element (58) between the first actuating element (36) and the second actuating element (36) is arranged.
    [7]
    7. parking brake according to claim 1, characterized in that the pawl (4) about a bearing axis (59) is pivotally mounted on the housing (1) and a bearing axis (59) receiving the pivot bearing portion and extending from this in the opposite direction arm portions ( 60, 61), wherein the first arm portion (60) forms a locking cam (62) spaced from the bearing shaft (59).
    [8]
    8. parking brake according to claim 1 or 7, characterized in that the pawl (4) in its second arm portion (61) on a the Spenmocken (62) opposite side forms a support surface (64), wherein a return spring (69) of the actuating device (3 ) between the support surface (64) of the pawl (4) and a support surface (67) of the housing (1) is supported such that the pawl (4) is biased in the release position
    [9]
    9. parking brake according to claim 6, characterized in that the return spring (69) is formed by a leaf spring.
    [10]
    10. parking brake according to claim 8 or 9, characterized in that the pawl (4) in its second arm portion (61) on a the locking cam (62) opposite side of the bearing axis (59) spaced first mounting member, in particular support tab (65) Determining a first end of the return spring (69), and the housing (1) a second mounting element opposite the first mounting element, in particular a support tab (68) for fixing a second end of the return spring (69) is formed.
    [11]
    11. Parking brake according to one of claims 8 to 10, characterized in that the leaf spring in each case a recess (70) forms in its opposite ends, in which protrude in the assembled state of the leaf spring, the mounting elements.
    [12]
    12. Parking lock for a motor vehicle transmission, in particular automatic transmission or automated manual transmission, with a housing (1), a ratchet wheel (5), an actuating device (3) and via the actuating device (3) between a release position and locking position adjustable pawl (4) a Spermocken (62) and a return spring (69) by means of which the pawl (4) is biased in the release operation, characterized in that the pawl (4) about a bearing axis (59) pivotally mounted on the housing (1) and a the bearing axis (59) receiving the pivot bearing portion and extending therefrom in the opposite direction arm portions (60, 61), wherein the first arm portion (60) the locking cam (62) and the second arm portion (61) on a sperm cam (62) opposite side has a support surface (64), wherein the return spring (69) between the support surface (64) of the second Armabschni ttes (61) and a support surface (67) of the housing (1) is arranged.
    [13]
    13. Parking brake according to claim 12, characterized in that the parking lock is designed according to one of claims 1 to 11. STIWA Holding GmbH by lawyers Bqraer & Partner Lawyer GmbH
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    同族专利:
    公开号 | 公开日
    DE102010061171A1|2012-06-14|
    AT511578B1|2013-03-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20090120222A1|2007-11-13|2009-05-14|Denso Corporation|Shift range change system|
    DE10310977B4|2003-03-07|2008-06-12|Getrag Getriebe- Und Zahnradfabrik Hermann Hagenmeyer Gmbh & Cie Kg|Motor vehicle transmission with parking lock|
    DE102004037982A1|2004-08-05|2006-02-23|Volkswagen Ag|Parking lock for motor vehicle transmission system, has locking pin held above reset spring in resting position, where similar functional components except wheel are integrated in functional assembly group as closed unit in system|
    DE102005001546A1|2005-01-13|2006-07-27|Zf Friedrichshafen Ag|Parking lock for e.g. automatic transmission of motor vehicle, has locking unit which is designed to make narrow osculation with component that is ratchet or plate, and line contact with component that is ratchet or plate|
    DE102008011115A1|2008-02-26|2009-08-27|Schaeffler Kg|Gear locking device|CN104149612B|2014-04-30|2016-08-31|宁波上中下自动变速器有限公司|Double-clutch speed changer electronic parking mechanism|
    DE102014108866B4|2014-06-25|2017-04-06|Hugo Benzing Gmbh & Co. Kg|Parksperrenbaueinheit|
    WO2017211386A1|2016-06-06|2017-12-14|Punch Powertrain N.V.|Park lock system, mounting bracket for a park lock system, transmission comprising such a park lock system, method for assembling such a park lock system into a transmission.|
    DE102017102804B4|2017-02-13|2019-03-14|Schaeffler Technologies AG & Co. KG|Device for actuating a parking brake|
    DE102017003599A1|2017-04-12|2018-10-18|Daimler Ag|Parking lock device|
    DE102019204372A1|2019-03-28|2020-10-01|Zf Friedrichshafen Ag|Parking lock arrangement|
    DE102019008811A1|2019-12-18|2021-01-28|Daimler Ag|Parking lock system for a motor vehicle|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE201010061171|DE102010061171A1|2010-12-10|2010-12-10|Parking lock for e.g. automatic transmission of motor car, has operating device comprising operating member forming wedge-shaped active area for engagement with counter-active surface at latch and formed by non-machining component|
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