• 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:
    Parking brake for a vehicle. The parking brake comprises a hydraulic system with a cylinder (1) actuable between at least a first position and a second position, and comprising a rod (11) and sleeve (12); an actuator (3) coupled to the cylinder (1), so that the actuator (3) is capable of modifying the at least one position of the cylinder (1), where the actuator (3) is actuable between at least one braking position and a rest position, wherein the braking position provides a first position of the cylinder (1), in which the parking brake comprises a retaining means (2) engageable between the rod (11) and the liner (12), where a first position of the cylinder (1) comprises the retaining means (2) coupled to the rod (11) and the jacket (12). It allows automatic undocking when the driver starts the vehicle. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2640025A1
    申请号:ES201631507
    申请日:2016-11-24
    公开日:2017-10-31
    发明作者:Carles DE MONTSERRAT VALLVÉ
    申请人:SEAT SA；
    IPC主号:
    专利说明:

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    DESCRIPTION
    Parking brake for a vehicle.
    The present invention relates to a parking brake for a vehicle, for example, for a competition vehicle, which allows automatic de-anchoring when the driver starts the vehicle.
    Background of the invention
    Cars comprise a parking brake to prevent the car from accidentally moving when it is parked. Conventionally, the parking brake comprises a lever that drives the driver, the parking brake being able to be placed in a rest position, in which it does not act, or in a maximum braking position, in which the parking brake prevents the movement of the car. In conventional parking brakes, there are a plurality of intermediate positions that provide different braking intensities.
    At present, it is usual for parking brakes to be automatic, that is, to move from their maximum braking position to their resting position automatically when the car is started. However, its response time is not adequate for use in competition vehicles, which require that the start be as instantaneous as possible.
    Competition vehicles do not usually have a parking brake as understood for street vehicles. The parking brakes are designed for racing vehicles to fulfill the starting function in a race, that is, to briefly hold the vehicle while the engine is pulling the wheels.
    In this way, when the parking brake is manually operated, the vehicle is retained and, when the parking brake is released, the vehicle is suddenly and quickly put in motion, allowing a better exit. Comment that the passage from the actuation position to the rest position is by means of elastic means, which force the parking brake to remain in the position in which the vehicle is not retained. Mechanisms that fix the parking brake actuation position are not commonly used.
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    Locking devices for parking brakes of conventional vehicles are known. For example, EP2746121A1 describes a handbrake locking device, comprising a rotating locking bar, which is driven by a motor, which can be a stepper motor. This locking device has the disadvantage that it is complex, due to the need to use an engine, it increases the weight of the vehicle, undesirable in competition vehicles and brings a lot of complication to a system that cannot have a chance of failure.
    Therefore, the objective of the present invention is to provide a parking brake, suitable for use in racing vehicles, which is simpler, does not require the use of an engine, which allows greater control of the driver over the brake hand-held, and ensure that the driver never leaves the parking brake applied when he wishes to execute the exit maneuver.
    Description of the invention
    With the parking brake in accordance with the present invention, the aforementioned drawbacks are resolved, presenting other advantages that will be described below.
    The parking brake for a vehicle according to the present invention comprises:
    - at least one hydraulic system, where the at least one hydraulic system comprises at least one cylinder, where the at least one cylinder is operable between at least a first position and a second position, and where the at least one cylinder comprises at least one offspring and at least one shirt,
    - at least one actuator, where the at least one actuator is coupled to said at least one cylinder, so that the at least one actuator is capable of modifying the at least one position of the at least one cylinder, where the at least one actuator it is operable between at least one braking position and a resting position, where the braking position provides a first position of the cylinder,
    wherein the parking brake comprises at least one retention means, where the at least one retention means is attachable between the at least one rod and the at least one sleeve, where a first position of the at least one cylinder comprises the means of retention coupled to said at least one rod and at least one shirt.
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    First of all, it should be noted that a hydraulic cylinder means a hydraulic cylinder, for example, a hydraulic pump, which comprises a rod and a sleeve. The jacket is an outer cover with respect to which said rod moves longitudinally. It should also be noted that said sleeve is integral with a first axis and said rod is integral with a second axis. The first axis and the second axis constitute anchoring elements for the at least one retention means.
    Braking position is understood as that position of at least one cylinder that results in an activation of the braking circuit and, consequently, an activation of at least one vehicle brake. On the contrary, the rest position is understood to be that position of the at least one cylinder that results in a non-activation of the braking circuit, so that the at least one vehicle brake is not activated. Comment that there is at least one braking position, so that a regulation of the braking force applied to the vehicle's wheels is allowed.
    Preferably, the second position of the at least one cylinder comprises the actuator in the rest position and comprises the at least one retaining means separated from the at least one rod and / or from the at least one sleeve.
    In addition, the hydraulic system can advantageously comprise at least one elastic means, where the at least one elastic means is disposed between the at least one rod and the at least one sleeve, where the at least one elastic means exerts a tensile force between the At least one offspring and at least one shirt.
    In this way, this traction force tends to place the at least one cylinder in the second position. According to a preferred embodiment, said elastic means is a helical spring, although it could be any suitable elastic means, and exerts an extension force on the cylinder sleeve and rod.
    According to a preferred embodiment, the at least one retaining means comprises at least one first joining means, where the at least one first joining means is attached to the at least one sleeve. That is, the at least one first connection means comprises fixed connection with the at least one shirt, where the at least one retention means is integral and not detachable from the at least one shirt through the at least one first connection means. . By way of example, the at least one first joining means is fixed to the first axis of the at least one jacket, but alternatively it can be attached to any element that is
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    in solidarity with the shirt.
    In addition, the at least one retention means comprises at least one second joining means, where the at least one second joining means is attachable to said at least one rod, so that the first position of the at least one cylinder comprises the at at least a second connection means coupled to said at least one rod and the second position of the at least one cylinder comprises the at least one second connection means separated from the at least one rod. That is to say, it is a mobile union that can be attached to the rod through the second axis, or through any element that is integral with the rod.
    It is noted that the above configuration may be inverse, the at least one joining means being attachable to the at least one sleeve and the at least one second joining means joining and integral to at least one rod.
    The at least one rod also advantageously comprises at least one fitting means, where the at least one fitting means is integral to said at least one rod, and where the at least one second joining means is attachable to said at least one means. of engagement, performing the function of stop, and preventing the second means of union from accidentally moving out of its desired position.
    According to a preferred embodiment, the second joining means comprises at least one hook, where the at least one hook is attachable to said at least one engaging means, where the at least one hook comprises at least one ramp, where the less a ramp contact with the at least one means of lace. In this way, when the parking brake is in the braking position and the user releases the at least one actuator, the hook detaches from the at least one coupling means, so that the at least one hydraulic system evolves from the less a braking position to the resting position, as will be explained later.
    Advantageously, the at least one retaining means comprises at least one toric joint, where the at least one toric joint is disposed at the junction between the first joining means and the at least one sleeve. This at least one toric joint ensures that the first joining means is retained in the proper position and allows a movement or play between the first joining means and the at least one shirt, so that it contributes to the hook detaching from the less a coupling means and the at least one hydraulic system evolves from the at least one braking position to the resting position.
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    In addition, the at least one retention means is capable of being deformed in a direction substantially perpendicular to a direction of coupling between the second joining means and the at least one rod, allowing the retention means to be coupled or separated from the second axis. of the cylinder, allowing the parking brake to move between its different positions, as explained below.
    The parking brake according to the present invention also preferably comprises at least one holding element, wherein the at least one holding element holds the at least one retaining means separated from the at least one rod and / or from the at least one shirt, allowing the parking brake to be retained in its resting position.
    In addition, the actuating element can also comprise a tongue at its mobile end, so that it functions as a handle or system to facilitate the manipulation of the retention means by a user.
    In order to regulate its length, the at least one retention means comprises at least one first plate, at least one second plate and at least one regulation means between the at least one first plate and the at least one second plate, so that the at least one means of regulation modifies a position of the at least one first plate with respect to the at least one second plate.
    To prevent rotation between the first plate and the second plate, the at least one adjustment means comprises at least two bolted joints, where the at least two bolted joints are passed between the at least one first plate and the at least one second plate .
    The at least one actuator describes a rotation movement between the at least one maximum braking position and the resting position, this rotation being relative to a fixed point, so that it exerts another rotation on the hydraulic system. This movement transmission system is very simple and does not require major technical complexities.
    The operation of the parking brake the following, having three main positions, although the passage from one to another is progressive:
    Resting position: In the resting position the elastic medium is exerting a force of
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    extension on the axes of the cylinder, and forces the actuator to have an advanced position (closer to the dashboard). In this position the vehicle brakes are not activated, so there is no braking on the wheels of the vehicle.
    Parking position: It is a position in which the hydraulic cylinder induces sufficient pressure to the braking circuit to retain the vehicle, while the engine is stopped. It is a parking situation. Therefore, the actuator moves slightly away from the dashboard and the elastic medium is slightly more compressed. In this position the at least one retaining means is coupled between the at least one rod and the at least one sleeve of the at least one cylinder, more specifically, the at least one hook is coupled to at least one fitting means. Therefore, the action of the hook between the axles of the cylinder compresses said cylinder, applying sufficient braking on the wheels to retain the vehicle.
    Maximum braking position. The at least one actuator is operated in its maximum position, that is, as far as possible from the instrument panel. In this position the hydraulic cylinder is compressed at its maximum and the pressure induced to the braking circuit to retain the vehicle is maximum. This particular situation is required in a starting situation, for example, in a race start. Considerable braking is required, since it is releasing the clutch and giving gas, so it requires a lot of retention in the braking circuit. When the driver releases the actuator, by the action of the elastic means of the cylinder, the brake is released and goes to its rest position, allowing the vehicle to move forward. The need is therefore observed that the at least one retention means is automatically released from the coupling position, in case the driver has forgotten to do it manually. The consequences of not releasing the at least one means of retention would be a very slow start on departure and could favor the subsequent impact of vehicles that have made a correct start.
    Brief description of the drawings
    For a better understanding of what has been exposed, some drawings are combined in which, schematically and only by way of non-limiting example, a practical case of realization is represented.
    Figure 1 is a perspective view of the parking brake according to the present invention;
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    Figure 2 is an exploded perspective view of the lower part of the parking brake according to the present invention; Y
    Figure 3 is a schematic plan view of the retention means, in which the transverse displacement performed by the retention means is shown.
    Description of a preferred realization
    As shown in Figure 1, the parking brake according to the present invention comprises an actuator 3, for example, a lever, coupled to a cylinder 1, for example, a hydraulic pump, which acts on the system of braking of a vehicle.
    Said cylinder 1 comprises a rod 11, a jacket 12 and an elastic means 13, for example, a helical spring. Said rod 11 is movable with respect to the jacket 12 against the action of said elastic means 13, as will be described later.
    The parking brake according to the present invention also comprises at least one retaining means 2, formed, for example, from a first plate 26 and a second plate 27. The function of said retention means 2 is to retain the cylinder 1 in the parking position, where the cylinder 1 applies a pressure in the hydraulic braking circuit sufficient to retain the vehicle in a stationary vehicle situation, as will be explained later.
    For this, the retaining means 2 is connected to the jacket 12 by means of a first joining means 21, for example, an eyelet in which a first shaft 120 integral with said sleeve 12 is housed. Also, between the first axis 120 and The first joining means 21 are arranged with toric joints 24.
    The retaining means 2 is attachable to the rod 11 by means of a second joining means 22, comprising a hook 23, which is coupled to a fitting means 14 provided on a second shaft 110 integral with the rod 11. Said hook 23 is coupled in the fitting means 14 in the parking and maximum braking positions, which will be described later.
    To regulate the length of the retaining means 2, it comprises regulation means 28, for example, formed by two bolted joints, where the joints
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    Screwed together are through between the first plate 26 and the second plate 27, said bolted joints being able to fix the relative position of the first and second plates 26, 27 together, defining and regulating the length of the retention means 2, according to the length of the cylinder 1.
    In addition, the retaining means 2 also comprises a tongue 25, preferably positioned close to the distal end of the second plate 27. Said tongue 25, which protrudes laterally with respect to the retention means 2, favors the actuation by the driver of the vehicle, improving the "haptic" and handling of the retention means 2. Advantageously the tongue is oriented towards the driver of the vehicle.
    The operation of the parking brake is as follows, taking into account that the passage from one position to another is progressive.
    In the rest position, the actuator 3 is in its most advanced position, that is, in its position closest to the vehicle dashboard.
    In this resting position, the retaining means 2 is coupled with the holding element 4, shown in Figure 1. In this position, the at least one retaining means 2 does not act on the cylinder 1. Instead, it is found fixed in the holding element 4, so that it does not move freely or produces noises by contact with other nearby components during the movement of the vehicle. More specifically, since the retaining means is released from the cylinder, the elastic means 13 exerts an extension force that is not counteracted by any other element, so that the rod 11 is in its most advanced position, that is, in the position that stands out more with respect to the sleeve 12 of the cylinder 1. As mentioned, there is no action on the brakes of the vehicle in this rest position of the retaining means 2.
    To apply the parking brake, the actuator 3 moves slightly away from the dashboard and the elastic means 13 is compressed proportionally to the movement of the actuator 3. This position is defined as a parking position, and the parking brake induces sufficient pressure to the braking circuit to retain the vehicle. This is a parking situation or stationary vehicle.
    In this parking position, the hook 23 engages with the fitting means 14 and retains the cylinder 1, slightly compressing the elastic means 13, and applying a braking
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    on the rear wheels of the vehicle, sufficient to retain the vehicle.
    There is a third maximum braking position, when the driver wishes to start the vehicle, for example, at a race start. The parking brake is placed in the so-called maximum braking position, which is equivalent to a position further away from the dashboard possible. In this position, the elastic means 13 is compressed and the cylinder 1 induces the hydraulic brake circuit to a situation of maximum retention by the vehicle brakes.
    At the same time that the actuator 3 is in the maximum braking position, the driver releases the clutch and squeezes the accelerator, which requires a lot of retention in the braking circuit. When the actuator 3 is released, by the action of the elastic means 13 of the cylinder, the brake is released, that is, the hook 23 is disengaged from the fitting means 14 and goes to its resting position, allowing the vehicle to advance.
    In Figure 3, the transverse displacement performed by the retaining means 2 during the operation of the parking brake according to the present invention is shown schematically in plan.
    As shown in this figure 3, the retaining means 2 is fixed by a first end to the first axis 120 by interposition of the toric joints 24, while the other retaining end 2 is movable as indicated in dashed lines. , and as will be described below. Note that the dashed line symbolizes a position of the retention means 2 extracted from the second axis 110, whereby the elastic means 13 of the cylinder finds no opposition exerted by the at least one retention means 2, passing the braking circuit of exercising a pressure on the brakes of the vehicle to a situation where no pressure is exerted on said brakes.
    As indicated above, in the parking position, the hook 23 of the second joining means 22 is coupled with the coupling means 14 of the second axis 110 and retains the cylinder 1, as shown in Figure 3 with the means of retention 2 represented in continuous line.
    The displacement of said retaining means 2 from this position in which it is coupled to the second axis 110 to the position shown in dashed lines is performed when the driver drives the actuator 3 from the parking position to the position of
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    maximum braking Thus ^ the hook 23 of the second joining means 22 is disengaged from the fitting means 14 and evolves to its resting position (represented in dashed lines), eliminating the pressure on the braking circuit and allowing the vehicle to advance.
    It should be noted that Figure 3 has not been shown to scale to facilitate the representation of this displacement of the retaining means 2.
    At least three main factors allow this release of the retention means 2 of the at least one shirt 12 and / or of the at least one rod 11:
    - The geometry of the hook 23, which has a ramp that favors a slide and the release of the hook 23 with respect to the second axis 110.
    - The at least one toric joint 24, which favors the lateral flexion of the at least one retaining means 2, so that in the position in which the at least one retaining means 2 is coupled to the at least one sleeve 12 and to the at least one rod 11, it is a forced position and not resting.
    - The lateral flexion itself of the at least one retaining means 2, which allows the user to fold it in order to position it in the coupling position with the at least one sleeve 12 and the at least one rod 11, introducing internal forces in the at least one retaining means 2 that tend to release it from the coupling position.
    In this way, the retention means 2 is released automatically, in case the driver has forgotten to do it manually, avoiding a very slow start-up that could favor the subsequent impact of vehicles that have made a correct start.
    Although reference has been made to a specific embodiment of the invention, it is evident to one skilled in the art that the described parking brake is susceptible to numerous variations and modifications, and that all the mentioned details can be replaced by others technically equivalent, without departing from the scope of protection defined by the appended claims.
    权利要求:
    Claims (14)
    [1]
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    1. Parking brake for a vehicle, where the parking brake comprises:
    - at least one hydraulic system, where the at least one hydraulic system comprises at least one cylinder (1), where the at least one cylinder (1) is operable between at least a first position and a second position, and where the at least a cylinder (1) comprises at least one rod (11) and at least one sleeve (12),
    - at least one actuator (3), where the at least one actuator (3) is coupled to at least one cylinder (1), so that the at least one actuator (3) is capable of modifying the at least one position of the at least one cylinder (1), where the at least one actuator (3) is operable between at least one braking position and a rest position, where the braking position provides a first position of the cylinder (1),
    characterized in that the parking brake comprises at least one retention means (2), where the at least one retention means (2) is attachable between the at least one rod (11) and the at least one sleeve (12), where a first position of the at least one cylinder (1) comprises the retaining means (2) coupled to at least one rod (11) and to the at least one sleeve (12).
    [2]
    2. Parking brake for a vehicle according to claim 1, characterized in that the second position of the at least one cylinder (1) comprises the actuator (3) in the rest position and comprises the at least one retention means (2) separated from the at least one rod (11) and / or from the at least one shirt (12).
    [3]
    3. Parking brake for vehicles according to claim 1, characterized in that the at least one hydraulic system comprises at least one elastic means (13), wherein the at least one elastic means (13) is arranged between the at least one rod ( 11) and the at least one shirt (12), where the at least one elastic means (13) exerts a traction effort between the at least one rod (11) and the at least one shirt (12).
    [4]
    4. Parking brake for a vehicle according to claim 1, characterized in that the at least one retaining means (2) comprises at least one first joining means (21), wherein the at least one first joining means (21) It is attached to the at least one shirt (12).
    [5]
    5. Parking brake for a vehicle according to claim 1, characterized by
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    that the at least one retention means (2) comprises at least a second joining means (22), where the at least one second joining means (22) is attachable to at least one rod (11), so that the First position of the at least one cylinder (1) comprises the at least one second joining means (22) coupled to at least one rod (11) and the second position of the at least one cylinder (1) comprises the at least a second means of union (22) separated from the at least one rod (11).
    [6]
    6. Parking brake for a vehicle according to claim 5, characterized in that the at least one rod (11) comprises at least one coupling means (14), wherein the at least one coupling means (14) is integral with the less a rod (11), and where the at least a second joining means (22) is attachable to at least one fitting means (14).
    [7]
    7. Parking brake for a vehicle according to claim 6, characterized in that the second joining means (22) comprises at least one hook (23), wherein the at least one hook (23) is attachable to at least one means of lace (14)
    [8]
    8. Parking brake for a vehicle according to claim 7, characterized in that the at least one hook (23) comprises at least one ramp, where the at least one ramp contacts the at least one coupling means (14).
    [9]
    9. Parking brake for a vehicle according to claim 4, characterized in that the at least one retaining means (2) comprises at least one toric joint (24), wherein the at least one toric joint (24) is arranged in the union between the first means of union
    (21) and the at least one shirt (12).
    [10]
    10. Parking brake for a vehicle according to claim 5, characterized in that the at least one retaining means (2) is capable of being deformed in a direction substantially perpendicular to a coupling direction between the second joining means
    (22) and the at least one stem (11).
    [11]
    11. Parking brake for a vehicle according to claim 1, characterized in that it comprises at least one holding element (4), wherein the at least one holding element (4) holds the at least one separate retaining means (2) of the at least one rod (11) and / or of the at least one shirt (12).
    [12]
    12. Parking brake for a vehicle according to claim 1, characterized by
    that the at least one retaining means (2) comprises at least one first plate (26), at least one second plate (27) and at least one regulation means (28) between the at least one first plate (26) and the at least one second plate (27), so that the at least one adjustment means (28) modifies a position of the at least one first plate (26) 5 with respect to the at least one second plate (27).
    [13]
    13. Parking brake for a vehicle according to claim 12, characterized in that the at least one adjustment means (28) comprises at least two bolted joints, where the at least two bolted joints are passed between the at least one first
    10 plate (26) and the at least one second plate (27).
    [14]
    14. Parking brake for a vehicle according to claim 1, characterized in that the at least one actuator (3) comprises a rotational movement between the at least one maximum braking position and the rest position.
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    同族专利:
    公开号 | 公开日
    EP3326872B1|2019-06-05|
    EP3326872A1|2018-05-30|
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20020184963A1|2001-06-08|2002-12-12|Champ Larry Brian|Controlled release parking brake system|
    US20050077118A1|2003-08-23|2005-04-14|Daimlerchrysler Ag|Hydraulic operating device for a parking brake|
    EP2746121A1|2012-12-20|2014-06-25|Nissan Motor Manufacturing Ltd.|Handbrake locking device|
    CN205089259U|2015-11-10|2016-03-16|东北石油大学|Oil well tractor rack type auto -lock expanding brake device|
    JPH09226661A|1996-02-21|1997-09-02|Nissin Kogyo Kk|Hand brake device for handlebar vehicle|
    US20060071542A1|2004-10-05|2006-04-06|Toby Lichtensteiger|Hydraulic park pawl brake system|
    JP2007118738A|2005-10-27|2007-05-17|Fuji Heavy Ind Ltd|Vehicular brake device|
    DE102007040293A1|2007-08-24|2009-03-19|Gustav Magenwirth Gmbh & Co. Kg|Brake armature for hydraulic brake of vehicle e.g. all terrain vehicle, has step-like or wedge-shaped resting element inserted between brake-armature housing and brake lever in brake position of lever |
    法律状态:
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    优先权:
    申请号 | 申请日 | 专利标题
    ES201631507A|ES2640025B1|2016-11-24|2016-11-24|Parking brake for a vehicle|ES201631507A| ES2640025B1|2016-11-24|2016-11-24|Parking brake for a vehicle|
    EP17382770.0A| EP3326872B1|2016-11-24|2017-11-14|Parking brake for a vehicle|
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