DE112020002391T5 - LOCKING DEVICE FOR MOTOR VEHICLES WITH ACCIDENT SAFETY MECHANISM WITH INERTIA LEVER - Google Patents

Abstract

A latch latch assembly for automotive latch systems includes a latch mechanism, a latch release mechanism, a handle actuated release mechanism, and an inertia activated blocking mechanism disposed between the handle actuated release mechanism and the latch release mechanism. The inertia activated blocking mechanism is operable in a non-blocking mode to allow the latch release mechanism to actuate the latch mechanism and is further operable in a blocking mode to prevent actuation of the latch release mechanism. An inertial force above a predetermined acceleration threshold applied to a locking component of the locking mechanism causes a switch from non-locking mode to locking mode, thereby preventing inadvertent release of the locking mechanism.

Description

CROSS REFERENCE TO A RELATED APPLICATION

This application claims the benefit of US Provisional Application Serial No. 62/846,948 , filed May 13, 2019, which is incorporated herein by reference in its entirety.

AREA

The present disclosure relates generally to latch latch assemblies used in automotive latch systems. In particular, the closure latch assembly of the present disclosure is equipped with a crash safety mechanism having an inertially activated locking lever.

BACKGROUND

This section provides background information on automotive latch systems and does not necessarily constitute prior art to the latch latch assembly of the present disclosure.

A vehicle closure plate such. B. a door for the passenger compartment of a vehicle, is pivotable to swing between an open and a closed position and includes a door-mounted latch latch assembly. The latch latch assembly functions in a known manner to latch the door when closed and to latch the door in its closed position and to unlatch the door to allow subsequent movement of the door to its open position . As is also known, the shutter latch assembly is constructed to include a latch mechanism for latching the door, a latch mechanism which cooperates with the latch mechanism to latch the door, and a latch release mechanism which cooperates with the latch mechanism and the latch mechanism. to unlock/unlock the door. These mechanisms can be manually and/or powered to provide the desired level of standard functionality.

In the event of a vehicle collision or other emergency situation, the vehicle doors must be held closed regardless of inadvertent handle operations or other user or external intervention (ie, deformation of the door handles and/or latch release components that may cause the latching mechanism of the vehicle to move). Latch latch assembly prematurely unlocked during impact). As such, it is also known to configure closure latch assemblies to prevent inadvertent opening of the door when high inertial loads are applied to the door due to rapid vehicle acceleration/deceleration and/or a vehicle collision. In many cases, the shutter latch assembly is designed with some sort of additional "safety" mechanism or device to ensure this function. Some of these safety devices employ an inertia element that pivots relative to a moving component of the latch release mechanism or the locking mechanism to a blocked position as a result of predefined accelerations, such as those occurring during a crash, to prevent inadvertent release of the locking mechanism . Other door latch safety devices utilize a control system configured to detect a high acceleration event and actuate a power operated device to move a blocking member into the blocking position. As an option for integrating the safety device into the latch latch assembly, it is also known to incorporate an inertia lock into the release cable connecting a door handle to the latch release mechanism. In such "blocking" inertial fuses, the blocking component must be constructed to both withstand the impact forces and allow the blocking function to be released so that the door can subsequently be opened.

In view of the above, there is a need to develop alternative inertialess safety devices for automotive latch/latch assemblies that provide improved operation without increasing latch complexity, cost, and packaging requirements.

SUMMARY

This section is a general summary and does not purport to be an exhaustive and comprehensive listing of all possible aspects, features and objectives related to the present disclosure.

It is an object of the present disclosure to provide a vehicle closure system with an inertially activated security assembly configured to provide at least some avoids or mitigates the shortcomings associated with the above security systems.

One aspect of the present disclosure is the provision of a latch latch assembly equipped with a latch mechanism, a latch release mechanism, a handle actuated release mechanism, and an inertia actuated blocking mechanism disposed between the outer latch release mechanism and the handle actuated release mechanism.

In accordance with these and other aspects and objectives, the present disclosure is directed to a latch latch assembly, comprising: a latch mechanism having a ratchet movable between a closer catch position and a closer release position, a pawl movable between a ratchet holding position movable for holding the ratchet in its closed catch position and a ratchet release position to allow the ratchet to move to its closed release position, a ratchet biasing member operable to bias the ratchet towards its closer release position, and a pawl biasing member operable to bias the pawl toward its ratchet holding position, a latch release mechanism having a latch release lever movable between a rest position and an actuated position, and a latch -Release lever spring he operable to bias the latch release lever toward its rest position, the latch release lever being operatively coupled to the latch such that movement of the latch release lever from its rest position to its actuated position results in corresponding movement of the latch from its ratchet holding position to its ratchet release position, a handle actuated latch release mechanism having a translational component coupled to a handle and a handle release lever coupled to the translational component, and an inertia activated locking mechanism having a handle release lever pivotally coupled to the handle Includes locking lever and has an unbalanced inertia configuration. The unbalanced inertia configuration causes the locking lever to move from a rest position to a locking position in response to acceleration above a predetermined acceleration threshold applied to the translational component. The blocking lever is operable in its blocking position to prevent the latch release lever from moving to its actuated position.

According to another aspect of the disclosure, there is provided a latch latch assembly for an automotive latch, comprising: a housing; and a latch mechanism including a ratchet operatively carried by the housing for movement between a closer caught position and a closer released position and a pawl operably carried for movement between a ratchet hold position for holding the ratchet in its closer catch position and a ratchet release position for allowing the ratchet to move to its closer release position. A ratchet biasing member serves to bias the ratchet towards the striker release position and a pawl biasing member serves to bias the pawl towards the ratchet holding position. A latch release mechanism is provided with a latch release lever movable between an unactuated position and an actuated position. The latch release lever is operatively coupled to the pawl such that movement of the latch release lever from its unactuated position to its actuated position results in corresponding movement of the pawl from its ratchet holding position to its ratchet release position. A handle actuated release mechanism is provided having a translational component coupled to a handle and a handle release lever coupled to the translational component. The handle release lever is movable between an unactuated position and an actuated position, with the latch release lever being moved to its actuated position when the handle release lever is in the actuated position. An inertia-activated locking mechanism is provided that includes a locking lever coupled to the handle release lever, the locking lever having an unbalanced inertia configuration, the unbalanced inertia configuration causing the locking lever to move in response to acceleration of the translational component above a predetermined acceleration threshold moved out from a rest position to a blocking position, wherein the blocking lever can be actuated in its blocking position to prevent the handle release lever from moving to its actuated position.

In another aspect, the locking lever moves in response to an acceleration of the translational component below the predetermined acceleration threshold in response to actuation of the handle-operated free release mechanism from its rest position to a non-blocking position wherein the blocking lever is actuatable in its non-blocking position to allow the handle release lever to move to its actuated position.

In another aspect, the blocking lever may be pivotally coupled to the handle release lever to allow pivotal movement about a pivot axis between the rest position, the blocking position, and the unblocking position.

In accordance with another aspect, a blocking member may be attached to the housing, the blocking member being configured not to impede movement of the blocking lever when in its non-blocking position to allow the handle release lever to move to its actuated position can move and that it impedes movement of the blocking lever when in its blocking position to prevent movement of the handle release lever to its actuated position.

In another aspect, the blocking member may be spaced from a guide member to define a gap therebetween, the blocking lever being configured to pass through the gap between the blocking member and the guide member when in its non-blocking position, to allow the handle release lever to move to its actuated position.

In another aspect, the blocking lever is configured to be misaligned with the gap in its blocking position so that it does not pass through the gap in its blocking position to prevent movement of the handle release lever to its actuated position.

In accordance with another aspect, the blocking lever may be provided with a stop pin and the blocking member may be provided with a stop hook configured to block the stop pin to prevent movement of the handle release lever to its actuated position when the blocking lever is in its blocking position.

In another aspect, the locking lever may be provided with a shoulder configured to engage a rib attached to the housing to initiate pivotal movement of the locking lever when the locking lever moves from its rest position in response to movement of the translational component .

According to a further aspect, the blocking element can be arranged such that it is located between the pivot axis of the blocking lever and the stop pin when the blocking lever is in its blocking position.

In another aspect, the stop pin is configured to pivot below the stop hook out of engagement with the stop hook to allow movement of the handle release lever to its actuated position when the blocking lever is in its non-blocking position.

According to another aspect, the locking lever may be configured to have a first lug portion and a second lug portion extending away from each other from the pivot axis, the second lug portion being configured to engage the locking member when the locking lever moves is in its blocking position.

In another aspect, the second nose portion can be configured to be positioned between the blocking member and the pivot axis when the blocking lever is in its blocking position.

In a further aspect, the first nose portion of the locking lever may be configured to engage a rib on the housing when the locking lever is in its rest position, wherein engagement of the first nose portion with the rib causes the locking lever to move in response to a accelerating the translational component to its non-locking position below the predetermined acceleration threshold and pivoting to its locking position in response to acceleration of the translational component above the predetermined acceleration threshold.

According to another aspect of the disclosure, a method for preventing inadvertent unlocking of a latch latch assembly of a motor vehicle latch is provided, the latch latch assembly having a housing that includes a ratchet of a latch mechanism for movement between a latch catch position and a latch release position and a pawl operable for movement between a ratchet hold position for holding the ratchet in its closer catch position and a ratchet release position for allowing movement of the ratchet to its closer release position, carries a latch release lever movable between an unactuated position and an actuated position is movable, the latch-free a release lever is operatively coupled to the pawl such that movement of the latch release lever from its unactuated position to its actuated position results in corresponding movement of the pawl from its ratchet holding position to its ratchet release position, and a handle actuated release mechanism having a with a translational component coupled to a door handle; and a handle release lever coupled to the translational component, the handle release lever being movable between an actuated position, in which the latch release lever is moved to its actuated position, and an unactuated position. The method includes the steps of: coupling an inertia activated locking mechanism having a locking lever having an inertially unbalanced configuration to the handle release lever, configuring the locking lever to move in response to an acceleration above a predetermined acceleration threshold applied to the translational component, to move from a rest position to a blocking position, the blocking lever being actuatable in its blocking position to prevent the pawl release lever from moving to its actuated position, and configuring the blocking lever to move in response to an acceleration below the predetermined Acceleration threshold applied to the translational component in response to actuation of the handle-operated release mechanism to move from its rest position to a non-locking position with the locking lever in its non-locking po position is actuatable to allow the handle release lever to move to its actuated position.

The method may further include the step of attaching a blocking member to the housing and constructing the blocking member not to impede movement of the blocking lever when in its non-blocking position to allow the handle release lever to be in its actuated position and that it impedes movement of the blocking lever when in its blocking position to prevent movement of the handle release lever to its actuated position.

The method may further include the step of providing the locking lever with a first lug portion and a second lug portion extending from a pivot axis of the locking lever and away from each other, and configuring the second lug portion to engage the locking member comes when the blocking lever is in its blocking position.

The method may further include the step of constructing the second nose portion to be between the blocking member and the pivot axis when the blocking lever is in its blocking position.

The method may further include the step of constructing the first tab portion of the locking lever to engage a rib on the housing when the locking lever is in its rest position, engagement of the first tab portion with the rib causing in that the locking lever pivots to its non-locking position in response to an acceleration below the predetermined acceleration threshold applied to the translational component and pivots to its locking position in response to an acceleration above the predetermined acceleration threshold applied to the translational component.

The method may further include the step of providing the blocking lever with a stop pin and the blocking member with a stop hook and constructing the stop hook to block the stop pin to prevent movement of the handle release lever to its actuated position prevent when the blocking lever is in its blocking position.

The method may further include the step of arranging the blocking element so that it is between the pivot axis of the blocking lever and the stop pin when the blocking lever is in its blocking position, and constructing the stop pin so that it is below the stop hook and pivots out of engagement with the stop hook to allow movement of the handle release lever to its actuated position when the locking lever is in its non-locking position.

Further areas of application will emerge from the detailed description. As noted above, the description in this summary section is for purposes of illustration only and is not intended to limit the scope of the present disclosure.

character list

• 1 ist eine perspektivische Teilansicht eines Kraftfahrzeugs, das mit einer Tür ausgestattet ist, die eine Verschluss-Verriegelungsanordnung aufweist, die gemäß den Lehren der vorliegenden Offenbarung konstruiert wurde und diese verkörpert,
• 2 ist eine Draufsicht auf einen Verriegelungsmechanismus, der mit der Verschluss-Verriegelungsanordnung der vorliegenden Offenbarung verbunden ist,
• 3A-3C sind Draufsichten auf den in 2 dargestellten Verriegelungsmechanismus, die jeweils einen primär verriegelten Zustand, einen sekundär verriegelten Zustand und einen entriegelten Zustand zeigen,
• 4 ist eine Draufsicht auf eine Verschluss-Verriegelungsanordnung mit einem trägheitsbetätigten Blockiermechanismus gemäß einer ersten, nicht beschränkenden Ausführungsform,
• 5 ist eine vergrößerte Teilansicht der Verschluss-Verriegelungsanordnung von 4, die einen Blockierhebel des trägheitsbetätigten Blockiermechanismus zeigt, der sich in einer Ruheposition befindet, wenn sich ein OS-Freigabehebel, der mit dem äußeren Verriegelungs-Freigabemechanismus verbunden ist, in einer Ruheposition befindet,
• Die 6A-6C zeigen eine Betätigung des griffbetätigten Kabel-Freigabemechanismus mit geringer Geschwindigkeit, die eine Bewegung des Blockierhebels aus seiner Ruheposition in eine nicht blockierende Position unter normalen Betriebsbedingungen ermöglicht,
• Die 7A-7D zeigen eine Hochgeschwindigkeitsbetätigung des handhebelbetätigten Kabel-Freigabemechanismus, die die Bewegung des Blockierhebels aus seiner Ruheposition in eine Blockierposition während einer Unfallsituation zeigt,
• 8 ist eine Draufsicht ähnlich wie 5, zeigt aber jetzt die Integration des trägheitsbetätigten Blockiermechanismus gemäß einer zweiten, nicht beschränkenden Ausführungsform,
• Die 9A-9C zeigen eine Betätigung des handhebelbetätigten Kabel-Freigabemechanismus bei niedriger Geschwindigkeit, um die Bewegung eines Blockierhebels des Sperrmechanismus von 8 aus seiner Ruheposition in eine nicht blockierende Position während normaler Betriebsbedingungen zu ermöglichen,
• 10A-10D illustrieren eine Hochgeschwindigkeitsbetätigung des Kabel-Freigabemechanismus, die eine Bewegung des Blockierhebels aus seiner Ruheposition in eine Blockierposition während einer Unfall-Situation zeigt, und
• 11 ist ein Flussdiagramm, das ein Verfahren zur Verhinderung des unbeabsichtigten Entriegelns einer Verschluss-Verriegelungsanordnung eines Kraftfahrzeugverschlusses gemäß einem anderen Aspekt der Offenbarung zeigt.

These and other aspects, features and advantages of the present disclosure will be readily appreciated as they become better understood by reference to the following detailed description when considered in conjunction with the accompanying drawings, in which:

• 1 13 is a partial perspective view of a motor vehicle equipped with a door having a latch latch assembly constructed in accordance with and embodying the teachings of the present disclosure.
• 2 Figure 12 is a top plan view of a latch mechanism associated with the latch latch assembly of the present disclosure.
• 3A-3C are plan views of the in 2 locking mechanism shown, each showing a primary locked state, a secondary locked state and an unlocked state,
• 4 Figure 12 is a plan view of a latch latch assembly with an inertia actuated locking mechanism according to a first non-limiting embodiment.
• 5 12 is an enlarged partial view of the latch latch assembly of FIG 4 12 showing a locking lever of the inertia actuated locking mechanism being in a rest position when an OS release lever connected to the outer lock release mechanism is in a rest position,
• the 6A-6C show low speed actuation of the handle actuated cable release mechanism that allows movement of the locking lever from its rest position to a non-locking position under normal operating conditions,
• the 7A-7D Figure 12 shows high speed actuation of the hand lever actuated cable release mechanism showing movement of the locking lever from its rest position to a locking position during a crash situation,
• 8th is a plan view similar to 5 , but now shows the integration of the inertially actuated locking mechanism according to a second non-limiting embodiment,
• the 9A-9C show low speed actuation of the hand lever actuated cable release mechanism to inhibit movement of a locking lever of the locking mechanism of FIG 8th to allow from its rest position to a non-blocking position during normal operating conditions,
• 10A-10D 13 illustrate high speed actuation of the cable release mechanism showing movement of the locking lever from its rest position to a locking position during a crash situation, and
• 11 FIG. 12 is a flow diagram depicting a method for preventing inadvertent unlocking of a latch latch assembly of an automotive latch according to another aspect of the disclosure.

Corresponding reference characters will be used to identify corresponding parts throughout the several views of the drawings, unless otherwise indicated.

DETAILED DESCRIPTION OF EXAMPLES

EMBODIMENTS

Embodiments of locking devices for motor vehicle closures will now be described in more detail with reference to the accompanying drawings. To that end, the exemplary embodiments are provided so that this disclosure will be thorough, and will fully convey the intended scope to those skilled in the art. Accordingly, numerous specific details are set forth, such as: B. Examples of specific components, devices, and methods to provide a thorough understanding of a particular embodiment of the present disclosure. However, those skilled in the art will appreciate that specific details need not be employed, that the exemplary embodiments may be embodied in many different forms, and that the exemplary embodiments should not be construed to limit the scope of the present disclosure. In some portions of the exemplary embodiments, well-known methods, well-known device structures, and well-known technologies are not described in detail.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises,""including,""including," and "having" are inclusive and therefore specify the presence of particular features, integers, steps, operations, elements, and/or components, but exclude the presence or addition of one or more others characteristics, integers, steps, operations, elements, components and/or groups. The method steps, processes, and operations described herein are not to be construed to require performance in the order discussed or illustrated, unless expressly noted as an order of performance. It is also to understand that additional or alternative steps can be used.

When an element or layer is referred to as "on", "engages with", "connected to" or "coupled to" another element or layer, it may be directly on, engaged with, connected or coupled to the other element or layer, or there may be intervening elements or layers. In contrast, an element referred to as being “directly on,” “directly engaging,” “directly connected to,” or “directly coupled to” another element or layer may have no intervening elements or layers. Other words used to describe the relationship between elements should be interpreted in the same way (eg, "between" versus "directly between," "adjacent" versus "directly adjacent," etc.). As used herein, the term "and/or" includes any combination of one or more of the listed items.

Although the terms "first", "second", "third", etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be interchanged these terms are restricted. These terms can only be used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms do not imply any order unless clearly clear from the context. A first element, a first component, a first area, a first layer or a first section, which is discussed below, could also be used as a second element, a second component, a second area, a second layer or a second section without departing from the teachings of the exemplary embodiments.

Spatially relative terms such as "inside," "outside," "below," "below," "above," "above," "above," "above," "below," and the like may be used herein to simplify the description, to describe the relationship of one element or feature to another element or feature as illustrated in the figures. The terms “spatially relative” may be understood to include other orientations of the device in use or operation besides the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. The exemplary term “below” can therefore include both an orientation “above” and “below”. The device may be otherwise oriented (rotated degrees or at other orientations) and the spatial descriptions used herein should be interpreted accordingly.

1 14 is a partial isometric view of a motor vehicle 10 having a vehicle body 12 and at least one closure member, illustrated as a vehicle passenger door 14 by way of example and without limitation. The vehicle door 14 is hinged to the vehicle body 12 and is movable between a closed position and an open position. The vehicle door 14 includes an inside door handle 16 , an outside door handle 17 , a latch knob 18 , and a latch latch assembly 20 disposed on an edge surface 15 of the door 14 . As will be explained in more detail, the latch latch assembly 20 includes a latch mechanism 40 configured to releasably latch a striker 31 secured to the vehicle body 12, a latch release mechanism configured to selectively latch the latch mechanism 40 releases, a locking mechanism configured to selectively lock the locking mechanism 40, an inside handle (IS) actuated release mechanism 101 configured to connect the inside door handle 16 to the lock release mechanism, and one by a Outside handle (OS) operated release mechanism 111 constructed to connect the outside door handle 17 to the latch release mechanism. It should be understood, however, that the particular construction of these specific mechanisms is not critical or limiting to the present disclosure, which relates to the integration of an inertially-activated locking mechanism between components of at least one of the handle-actuated trigger mechanisms and components of the latch-release mechanism. As will be explained in more detail below, the inertia-activated locking mechanism is constructed to include an unbalanced inertia-weighted device designed to prevent inadvertent and undesired unlocking of the latch-latch assembly 20, such as during an event involving high acceleration of the exterior door handle 17 or from components, including a release cable, of the handle-operated OS release mechanism 111, such high accelerations typically occurring during a crash event, to provide a non-limiting example.

Although the closure member is shown as a passenger door 14, the closure latch assembly 20 to be described may be used with other closure members, such as. B. tailgates, boot lids, hatch doors, sliding doors, trunk lids and engine compartment hoods.

Referring to the 2 and 3A-3C 1, the latch mechanism 40 of the latch latch assembly 20 is shown in one non-limiting embodiment residing in a latch housing 42 and constructed as a conventional ratchet and pawl assembly having a ratchet 44 and a pawl 46. FIG. The ratchet 44 is pivotally attached to a plate portion 50 of the latch housing 42 by a ratchet pivot pin 48 . Likewise, the latch 46 is pivotally attached to the plate portion 50 of the latch housing 42 by a latch pivot 54 . A frusto-conical channel, commonly referred to as a fish mouth 60, is formed in the plate portion 50 of the latch housing 42 and is configured to receive the striker 31 as the door 14 is moved to its closed position. In particular, the striker 31 is configured to engage a striker retention slot 62 and a striker catch notch 64 formed in the ratchet 44 .

The ratchet 44 is used in 3A is rotated by striker 31 to a primary closed position corresponding to a fully closed condition of door 14 with pawl 46 in a primary ratchet holding position such that a locking shoulder 66 formed on pawl 46 translates into one formed in ratchet 44 primary locking notch 68, thereby retaining the striker 31 within the striker notch 64. The ratchet 44 is in 3B rotated to a secondary stop position corresponding to a partially open condition of the door 14 with the pawl 46 in a secondary ratchet holding position such that the latching shoulder 66 formed on the pawl 46 is now seated in a secondary latching notch 70 formed in the ratchet 44 engages whereby the shutter 31 is located in the retention slot 62. Finally, the ratchet is 44 in 3C rotated to a striker release position corresponding to an open condition of the door 14 and the pawl 46 is shown in a ratchet release position. The pawl 46 is normally engaged via a pawl biasing member, identified by way of example and without limitation as pawl spring 72 ( 2 ) is biased to its primary ratchet holding position, while ratchet 44 is normally biased to its closer release position via a ratchet biasing member, illustrated by way of example and not limitation, as a ratchet spring, illustrated schematically by arrow 74. 3A 12 shows the closure latch assembly 20 in a primary latched mode with the door 14 fully closed. 3B 12 shows the closure latch assembly 20 in a secondary latched mode with the door 14 partially closed. 3C Figure 12 shows the latch latch assembly 20 in the unlocked condition, allowing the door 14 to be moved to its open position.

2 12 shows that the latch 46 also includes a latch segment 76 that extends through a slot 78 in the plate portion 50 of the latch housing 42. FIG. The latch mechanism associated with the latch latch assembly 20 is operable to releasably hold the pawl 46 in one of its ratchet holding positions. The latch mechanism includes a latch lever movable (manually or via a power operated latch actuator) between a first or “unlatched” position and a second or “latched” position with respect to the pawl tab segment 76 of the pawl 46 . When the latch lever is in its unlocked position, a "locked/unlocked" mode is established for the latch latch assembly 20, allowing movement of the pawl 46 to its ratchet-release position. Conversely, having the latch lever in its latched position establishes a "locked/unlatched" mode for the latch latch assembly 20 and prevents movement of the pawl 46 to its ratchet-release position. Additionally, the latch release mechanism associated with the latch latch assembly 20 can move the pawl 46 from its ratchet holding position to its ratchet release position to establish the unlocked mode. The latch release mechanism includes a latch release lever 77 that is movable (manually or via a power release actuator) between a first or "rest" position and a second or "actuated" position with respect to the pawl tab segment 76 of the pawl 46 . With the pawl release lever 77 in its rest position, the locked/unlocked mode is established with the pawl 46 held in its ratchet holding position. In contrast, movement of the latch release lever 77 to its actuated position causes the latch release lever 77 (indirectly) or directly to engage the pawl tab segment 76 and causes the pawl 46 to move to its ratchet release position, the it in turn allows the ratchet 44 to rotate to its closer release position to establish the unlocking mode.

The handle actuated IS release mechanism 101 and the handle actuated OS release mechanism 111 associated with the latch latch assembly 20 are constructed to directly or indirectly cause movement of the pawl 46 from its ratchet holding position to its ratchet release position , when intended, which in turn allows the ratchet spring 74 to move the ratchet 44 to its closer release position. 1 shows schematically a translational component such. B. a release cable 22 that connects the interior door handle 16 to the handle actuated IS release mechanism 101 within the latch latch assembly 20. A similar translational component, e.g. B. release cable 23, connects the outer door handle 17 with the handle actuated release mechanism 111. Of course, alternative arrangements for the mechanical connection of the inner door handle 16 with the handle actuated IS release mechanism 101 and the outer door handle 17 with the handle actuated OS release mechanism 111 within the Closure locking assembly 20 conceivable and available.

4 12 shows various components of the slide latch assembly 20, including an IS lever 100 connected to the IS handle actuating mechanism 101, an IS clutch lever 102 provided in the kinematic chain between the IS lever 100 and the latch release lever 77 and inner release cable 22 which is connected to IS lever 100 and inner handle 16. Additionally, the latch latch assembly 20 is shown to include a handle release lever, shown as the OS handle release lever, hereinafter referred to as the OS lever 110, connected to the OS handle actuation mechanism 111, an OS coupling lever 112 provided in the kinematic chain between the OS lever 110 and the pawl release lever 77, and the outer release cable 23 connecting the OS lever 110 to the outer grip 17.

In the 5-7D Illustrated is a first non-limiting embodiment of an inertia-activated locking mechanism 120 that generally includes a locking lever 122 that is connected to the OS lever 110 for movement relative to the OS lever 110 . In the illustrated non-limiting embodiment, the lockout lever 122 is pivotally connected to the OS lever 110 for relative pivotal movement therewith about a pivot axis PA, both during normal, intentional, low acceleration (e.g., (when a person lifts the outside door handle 17 to intentionally open the door 14) as well as unintentionally moving the outside door handle 17 at high acceleration, as discussed below. It is to be understood that the "high" acceleration is relative to the "low" acceleration, with the "high" acceleration typically being generated by a sudden, inadvertent movement of the outside door handle 17, such as a B. in a vehicle crash, while the "low" acceleration is generated during normal, intentional actuation of the outside door handle 17 to unlock the latch 20. Accordingly, the "high" acceleration typically cannot be generated by a person pulling on the outside door handle 17 in normal use. The locking lever 122 is constructed as an unbalanced component. 5 12 shows the lockout lever 122 in a rest position when the OS lever 110 is in its unactuated rest position. 5 12 shows a first nose portion 123 of locking lever 122 engaging a fixed first member, hereinafter referred to as pivot member or first rib 124, and, for example, an engaging surface 121 of first rib 124 fixed to latch housing 42 while the inertially activated locking mechanism 120 and OS lever 110 are in their respective rest positions. The engagement surface 121 may be formed of a notch, a protrusion, a protrusion, or a recess, as non-limiting examples. The first rib 124 may be affixed to the housing 42 as a monolithic piece of material or may be formed from a separate piece of material and subsequently affixed thereto, e.g. B. by a suitable attachment mechanism, z. B. by welding, gluing or fasteners.

the 6A-6C 12 show the release of the locking mechanism 40 and the OS locking mechanism by actuation of the outer handle 17 in intended, normal (ie, non-accidental) situations. 6A 12 shows slight rotation of lockout lever 122 from its rest position and relative to first rib 124, as indicated by arrow 126, in response to pivotal movement of OS lever 110 from its unactuated position to an actuated position. During the initial pulling action of the OS release cable 23 along the direction of the low g-force arrow LA on the OS lever 110 , the first nose portion 123 of the locking lever 110 is caused to pivot the locking lever 110 by engaging the first rib 124 . 6B shows the continued rotation of the locking lever 122 while the OS release cable 23 continues to pull on the OS lever 110 via the low g-force LA so that the first nose portion 123 rises along the first rib 124 while the OS lever 110 due to the actuation of the Outside handle 17 from its non-actuated position to its actuated position the release cable 23 is moved. It should be noted that a second nose portion 128 of the locking lever 122 is oriented to move within and through a gap G formed between a fixed second member, hereinafter referred to as a stop member, locking member or second rib 130, and a fixed guide member, hereinafter referred to as third rib 132, formed on latch housing 42. As discussed above with respect to the first rib 124, the second and third ribs 130, 132 may be formed as monolithic pieces of material with the latch housing 42 or from separate pieces of material that are subsequently attached thereto. Finally shows 6C that the locking lever 122 has been moved completely through the gap G and between the second rib 130 and the third rib 132 and is in its non-locking position when the OS lever 110 is in its actuated position, as a result of intended operation of the outer door handle 17 by the force LA with low acceleration. Accordingly, the blocking lever 122 is not obstructed by either the second or third ribs 130, 132 so that the latch release lever 77 can be moved to release the pawl 46 from its ratchet holding position to its ratchet release position, thereby locking the door 14 can be opened.

Contrary to normal operation, which is related to the above 6A-6C was discussed, show the 7A-7D an attempt to operate the OS handle operated mechanism 111 during a high speed (high acceleration) situation such as e.g. B. in an accident to operate unintentionally. 7A is similar to 6A and shows the locking lever 122 in its rest position at the onset of a crash. 7B shows the beginning of the "sluggish" rotation of the locking lever 122 about the pivot axis PA caused by the movement of the release cable 23 with high g-force along the direction of the arrow HA for high g-force resulting from a sudden, inadvertent movement of the outside door handle 17, as indicated by arrow 134. The blocking lever 122 can be replaced by a clamping element, e.g. B. a spring, shown as arrow 109, can be biased about the pivot axis PA to generate a biasing force that pushes the locking lever 123 counterclockwise from its rest position, as in FIG 5 shown. The high g-force causes locking lever 122 to move from its rest position to an unbalanced state against the bias of tensioning member 109 in response to pivoting of locking lever 122 about pivot axis PA caused by first nose portion 123 of locking lever 122 in releasably latched engagement with a first rib 124 on the latch housing 22, thereby initially preventing the first nose portion 123 from moving with downward movement of the lever 110. Such initial resistance at the first nose portion 123 causes the unimpeded second nose portion 128 to rotate clockwise about the pivot point defined by the pivot axis PA, as shown in FIG 6A shown, either toward an equilibrium configuration or an unbalanced configuration. Such induced rotation of the locking lever 122, caused by the releasably locked engagement of the locking lever with a first rib 124, pivots the first nose portion 123 out of locked engagement with the first tab 124 (as in Fig 6A shown immediately) while causing the second nose portion 128 of the locking lever 122 to oscillate. The amount of swinging of the locking lever 122 is based on the magnitude of the biasing force due to the biasing member 109 and the mass of the second nose portion 128 resulting from clockwise rotation of the second nose portion 128 in the direction of the gap G and the acceleration force arrow HA resulting from a sudden, inadvertent movement of the outside door handle 17 resulting, resists. When the acceleration force arrow HA resulting from a sudden, inadvertent movement of the outside door handle 17 is sufficient to cause rotation of the locking lever 122 and to overcome the biasing force due to the biasing element 109 and the inertial resistance of the second nose portion 128, so that the second Nose portion 128 is caused to rotate a certain amount to align second nose portion 128 with gap G, as shown in FIG 6B 1, placing the locking lever 122 in a balanced inertia configuration. When so aligned with the gap G, the locking lever 122 can be received in the gap G in its balanced inertia configuration. Due to the rotational speed of the locking lever 122 and its downward movement caused by the movement of the lever 110, the second nose portion 128 can be prevented from further rotation by abutting the second rib 130, as shown in FIG 6B to see. 7C Figure 12 illustrates the continued rotation (arrow 134) due to the high momentum and inertia of the locking lever 122 caused by the high acceleration causing the second nose portion 128 of the locking lever 122 to move past the gap G into a misaligned relationship to oscillate with the gap G so that it does not pass through the gap G so that the locking lever 122 is registered in face-to-face alignment with a stop shoulder 131 formed on the second rib 130 while in its locking position. With such a Misalignment with the gap G can prevent the locking lever 122 from being received in the gap G in an unbalanced inertia configuration. Due to a higher rotational speed of the locking lever 122 and its downward movement caused by a higher movement of the lever 110, the second nose portion 128 is caused to overshoot alignment with the gap G, as shown in FIG 7C shown. The higher acceleration force arrow HA resulting from a sudden, inadvertent movement of the outside door handle 17 is sufficient to cause rotation of the locking lever 122 and to overcome the biasing force due to the tensioning element 109 and the inertial resistance of the second nose portion 128, so that the second nose portion 128 is caused to rotate a certain amount further to misalign second nose portion 128 with gap G. The balance between the biasing force by the biasing member 109 and the inertial mass of the second nose portion 128 and the width of the gap G can define which acceleration force arrow HA places the locking lever in its balanced inertia configuration or unbalanced inertia configuration. 7D 12 illustrates the forced engagement of the second tab portion 128 with the stop shoulder 131 resulting from the high accelerating drag of the OS release cable 23 preventing and stopping further rotation of the OS lever 110 toward its actuated position, thereby preventing inadvertent release of the locking mechanism 40 is prevented.

8th resembles 5 and differs in that it now shows an inertially activated locking mechanism 120' for the latch latch assembly 20 constructed in accordance with a second, non-limiting embodiment. Like components of the latch latch assembly 20 are identified with common reference numerals, and like components of the locking mechanism 120' are identified with common reference numerals primed ('). The locking mechanism 120' includes a locking lever 122' connected to the OS lever 110 and pivotally connected to the OS lever 110 for relative pivotal movement about a pivot axis PA therewith. 8th Figure 12 shows the lockout lever 122' in its rest position when the OS lever 110 is in its unactuated rest position. Note that adjacent the first nose portion 123' of the locking lever 122' is a notched, depressed, or protruding shoulder 125 that is in releasable locking engagement with a first rib 124' on the latch housing 22 and, for example, a first rib engagement surface 121'124'. The engagement surface 121' may consist of a notch, a protrusion, a bulge, or a cutout, just to name a few examples. The blocking lever 122 ′ also includes a stop element, which is also referred to as a stop pin 129 .

9A-9C 12 are a series of sequential views showing low speed, normal use actuation of the OS release mechanism as the OS lever 110 moves from its unactuated position to its actuated position, corresponding to those above for FIG 6A-6C described similar views. The rotation of the locking lever 122' to its balanced inertia configuration or its unbalanced inertia configuration is effected in the same manner as described above with respect to the rotation of the locking lever 122. 9A Figure 12 shows the initial rotation of the lockout lever 122', indicated by arrow 126', with the lockout lever 122' being pulled with the OS lever 110 during the initial pulling action of the OS release cable 23 in the direction of arrow LA with low g-force and above the shoulder 125 engaging the first rib 124' (illustrated by engaging an engaging surface 121' of the first rib 124') is caused to pivot. 9B shows the stop pin 129 of a second lug segment 128', which is displaced out of engagement with a stop element, also referred to as a stop hook 131', on a stop element, also referred to as a blocking element or second rib 130', while the first lug segment 123' of the blocking lever 122 'slides along a guide member, also referred to as the third rib 132'. Since the stopper pin 129 is released from hooking engagement with the stopper hook 131', the OS lever 110 can be further pulled in translation with the tensile force LA of the OS release cable 23 with little acceleration. 13C 12 shows the lockout lever 122' in its release position when the OS lever 110 is in its fully actuated position and the locking mechanism 40 is disengaged.

In contrast, are 10A-10D a series of sequential views showing a high speed (inertial) actuation attempt as a result of a crash situation, corresponding to the similar views given above for 7A-7D were discussed. 10A is similar to 9A and shows the lockout lever 122' in its rest position and the OS lever 110 in its unactuated position. 10B and 10C 12 show the rotation of the locking lever 122' (arrow 134') when the OS lever 110 moves due to the sudden high acceleration forces HA (high acceleration forces generated above a predetermined acceleration threshold where the acceleration threshold is an expected maximum acceleration that will occur during normal use and the high acceleration forces only occur in a condition resembling an accident situation) and/or unintended movement of the release cable 23 that occurs in an accident and not during normal use occurs rotates from its unactuated position to its actuated position. Finally illustrated 10D that the stop pin 129, which is hooked to the locking lever 122', is pivoted and caught on the stop shoulder/hook 131' of the second rib 130', so that the second rib 130' blocks the stop pin 129 and thereby further rotation of the OS -Lever 110 and accidental release of locking mechanism 40 is prevented. It will be appreciated that the inertia of the sling pin 129 required for the sling pin 129 to latch and hook onto the sling hook 131' is present only when pivoted under the high acceleration forces HA discussed above, such as those encountered in an accident appear.

It will be appreciated that in the above-discussed embodiments of the inertia-activated locking mechanisms 120, 120', the inertia-activated locking mechanisms 120, 120' can be automatically reset after the high acceleration condition has ceased, thereby overriding the locking mechanism 40 by intended, normal operation of the external Door handle 17 can be unlocked.

According to a further aspect of the disclosure, as in 11 As shown, a method 1000 for preventing unintentional unlocking of a latch latch assembly 20 of a motor vehicle latch 14 is provided. The method 1000 is applicable to a variety of latch latch assemblies, such as, without limitation, a latch latch assembly 20 having a housing 42 that supports a ratchet 44 of a latch mechanism 40 for movement between a striker holding position and a striker position. release position and a latch 46 operably carries a latch for movement between a ratchet hold position for holding the ratchet 44 in its closer hold position and a ratchet release position allowing the ratchet 44 to move to its closer release position release lever 77 movable between an unactuated position and an actuated position, the latch release lever 77 being operatively coupled to the pawl 46 such that movement of the latch release lever 77 from its unactuated position to its actuated position toward a corresponding B movement of the pawl 46 from its ratchet holding position to its ratchet release position, and a handle actuated release mechanism 111 having a translational component 23 coupled to a door handle 17 and a handle release lever 110 coupled to the translational component 23, the handle release lever 110 movable between an actuated position, in which the latch release lever 77 is moved to its actuated position, and an unactuated position. The method 1000 includes: a step 1100 of coupling an inertia activated locking mechanism 120, 120' including a locking lever 122, 122' having an unbalanced inertia configuration to the handle release lever 110, a step 1200 of configuring the locking lever 122, 122', to move from a rest position to a blocking position in response to an acceleration of the translational component beyond a predetermined acceleration threshold, wherein the blocking lever 122, 122' is operable in its blocking position to prevent the handle release lever 110 from moving to its actuated position, and a step 1300 of configuring the locking lever 122, 122' to move to a non-locking position in response to acceleration of the translational component below the predetermined acceleration threshold in response to actuation of the handle-operated release mechanism 111 from its rest position position with the blocking lever 122, 122' being actuatable in its non-blocking position to allow the handle release lever 110 to move to its actuated position.

The method 1000 may further include a step 1400 of attaching a blocking member 130, 130' to the housing 42 and constructing the blocking member 130, 130' so as not to impede movement of the blocking lever 122, 122' when it is is in its non-blocking position to allow the handle release lever 110 to move to its actuated position and that it impedes movement of the blocking lever 122, 122' when in its blocking position to allow movement of the handle To prevent release lever 110 in its actuated position.

The method 1000 may further include a step 1500 in which the blocking lever 122, 122' is provided with a first nose portion 123, 123' and a second nose portion 128, 128', which differ from a pivot axis PA of the blocking lever 122, 122' from each other extending away and configuring the second nose portion 128, 128' to engage the blocking member 130, 130' when the blocking lever 122, 122' is in its blocking position.

The method 1000 may further include a step 1600 of constructing the second nose portion 128 to be between the blocking member 130 and the pivot axis PA when the blocking lever 122 is in its blocking position.

The method 1000 may further include a step 1700 of configuring the first tab portion 123, 123' of the locking lever 122, 122' to engage a rib 124, 124' on the housing 42 when the locking lever 122 , 122' is in its rest position, the engagement of the first tab portion 123, 123' with the rib 124, 124' causing the locking lever 122, 122' to cause, in response to an acceleration of the translational component 23 below the predetermined acceleration threshold in pivoting to its non-blocking position and pivoting to its blocking position in response to an acceleration of translational component 23 above the predetermined acceleration threshold.

The method 1000 can further comprise a step 1800 in which the blocking lever 122' is provided with a stop pin 129 and the blocking element 130' is provided with a stop hook 131' and the stop hook 131' is constructed in such a way that it blocks the stop pin 129, to prevent movement of the handle release lever 110 to its actuated position when the locking lever 122' is in its locking position.

The method 1000 may further include a step 1900, in which the blocking element 130' is arranged so that it is located between the pivot axis PA of the blocking lever 122' and the stop pin 129 when the blocking lever 122' is in its blocking position, and the Stop pin 129 is configured to pivot under stop hook 131' and out of engagement with stop hook 131' to allow movement of handle release lever 110 to its actuated position when blocking lever 122' is in its non-blocking position .

The foregoing description of the embodiments has been presented for purposes of illustration and description. It is not intended to be exhaustive or to limit the disclosure. Individual elements or features of a particular embodiment are generally not limited to that particular embodiment, but, where appropriate, are interchangeable and can be used in a selected embodiment, even if not specifically shown or described. The same can also be varied in many ways. Such variations are not to be regarded as a departure from the disclosure, and all such modifications are intended to be included within the scope of the disclosure.

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent Literature Cited

• US62/846948 [0001]

Claims (20)

Closure latch assembly (20) comprising a housing (42), a latch mechanism (40) including a ratchet (44) operably carried by the housing (42) for movement between a closer catch position and a closer release position, a pawl (46) operable for movement between a ratchet operatively carried holding position for holding the ratchet (44) in its closer catch position and a ratchet release position allowing movement of the ratchet (44) to its closer release position, a ratchet tensioning member (74) operable, to bias the ratchet (44) towards its closer release position, and a pawl biasing member (72) operable to bias the pawl (46) towards its ratchet holding position, a latch release mechanism having a latch release lever (77) movable between an unactuated position and an actuated position, the latch release lever (77) being operatively coupled to the pawl (46) such that movement of the latch - the release lever (77) from its unactuated position to its actuated position results in a corresponding movement of the pawl (46) from its ratchet holding position to its ratchet release position, a handle actuated release mechanism (111) having a translational component (23) coupled to a handle (17) and a handle release lever (110) coupled to the translational component (23), the handle release lever (110) between an unactuated position and an actuated position, moving the pawl release lever (77) to its actuated position, and an inertially activated locking mechanism (120, 120') having a locking lever (122, 122') coupled to the handle release lever (110) and having an unbalanced inertial configuration, wherein the unbalanced inertial configuration causes the blocking lever (122, 122') to move from a rest position to a blocking position in response to an acceleration of the translational component (23) beyond a predetermined acceleration, the blocking lever (122, 122') in its blocking position is operable to prevent the handle release lever (110) from moving to its actuated position. Closure locking arrangement (20) according to claim 1 wherein the blocking lever (122, 122') moves from its rest position to a non-blocking position in response to an acceleration of the translational component (23) below the predetermined acceleration threshold in response to actuation of the handle-operated release mechanism (111), wherein the blocking lever ( 122, 122') is operable in its non-blocking position to allow the handle release lever (110) to move to its actuated position. Closure locking arrangement (20) according to claim 2 wherein the blocking lever (122, 122') is pivotally coupled to the handle release lever (110) for pivotal movement about a pivot axis (PA) between the rest position, the blocking position and the unblocking position. Closure locking arrangement (20) according to claim 3 further comprising a blocking element (130, 130') fixed to the housing, the blocking element being constructed not to impede movement of the blocking lever (122, 122') when in its non-blocking position to allow the handle release lever (110) to move to its actuated position and to resist movement of the blocking lever (122, 122') when in its blocking position to prevent movement of the handle release lever (110 ) to its actuated position. Closure locking arrangement (20) according to claim 4 , wherein the blocking element (130) is spaced from a guide element (132) to define a gap (G) therebetween, the blocking lever (122) passing through the gap (G) between the blocking element (130) and the guide element (132) passes while in its non-blocking position to allow the handle release lever (110) to move to its actuated position. Closure locking arrangement (20) according to claim 5 wherein the blocking lever (122) is not aligned with the gap (G) in its blocking position so that it does not pass through the gap (G) in its blocking position to prevent movement of the handle release lever (110) to its actuated position. Closure locking arrangement (20) according to claim 4 wherein the blocking lever (122') includes a stop pin (129) and the blocking member (130') includes a stop hook (131') configured to block the stop pin (129) to prevent movement of the handle release lever (110) to its actuated position when the blocking lever (122') is in its blocking position. Closure locking arrangement (20) according to claim 7 wherein the locking lever (122') has a shoulder (125) configured to engage a rib (124') fixed to the housing (42) to initiate pivotal movement of the locking lever (122') when the locking lever (122') moves from its rest position in response to movement of the translational component (23). Closure locking arrangement (20) according to claim 7 , the blocking element (130') being located between the pivot axis (PA) of the blocking lever (122') and the stop pin (129) when the blocking lever (122') is in its blocking position. Closure locking arrangement (20) according to claim 7 wherein the stop pin (129) pivots under the stop hook (131') and out of engagement with the stop hook (131') to allow movement of the handle release lever (110) to its actuated position when the locking lever (122' ) is in its non-blocking position. Closure locking arrangement (20) according to claim 4 , wherein the locking lever (122) has a first nose portion (123) and a second nose portion (128) extending away from each other from the pivot axis (PA), the second nose portion (128) being configured to mate with the blocking member (130) is engaged when the blocking lever (122) is in its blocking position. Closure locking arrangement (20) according to claim 11 wherein the second nose portion (128) is between the blocking element (130) and the pivot axis (PA) when the blocking lever (122) is in its blocking position. Closure locking arrangement (20) according to claim 11 , wherein the first nose portion (123) of the locking lever (122) engages a rib (124) on the housing (42) when the locking lever (122) is in its rest position, the engagement of the first nose portion (123) with the rib (124) causes the locking lever (122) to pivot to its non-locking position in response to an acceleration below the predetermined acceleration threshold applied to the translational component (23) and in response to an acceleration above the predetermined acceleration threshold applied to the translational component is exerted pivots to its blocking position. A method (1000) for preventing inadvertent unlocking of a latch latch assembly (20) of a motor vehicle latch (14) having a housing (42) which includes a ratchet (44) of a latch mechanism (40) for movement between a latch catch position and a latch - a release position and a pawl (46) for movement between a ratchet holding position for holding the ratchet (44) in its closed catch position and a closed release position allowing the ratchet (44) to move towards its closed release position moving, operatively carrying a latch release lever (77) movable between an unactuated position and an actuated position, the latch release lever (77) being operatively coupled to the latch (46) to allow movement of the latch - the release lever (77) from its unactuated position to its actuated position with corresponding movement of the pawl (46) from its ratchet holding position to its ratchet release position, a handle actuated release mechanism (111) having a translational component (23) coupled to a door handle (17) and a handle release lever (110) coupled to the translational component (23). wherein the handle release lever (110) is movable between an actuated position in which the pawl release lever (77) is moved to its actuated position and an unactuated position, comprising: coupling an inertia-activated lockout mechanism (120, 120') having a lockout lever (122, 122') having an unbalanced inertia configuration to the handle release lever (110), configuring the blocking lever (122, 122') to move from a rest position to a blocking position in response to an acceleration of the translational component (23) above a predetermined acceleration threshold, the blocking lever (122, 122') being operable in its blocking position to prevent the handle release lever (110) from moving to its actuated position, and configuring the locking lever (122, 122') to move from its rest position to a non-locking position in response to acceleration of the translational component (23) below the predetermined acceleration threshold in response to actuation of the handle-operated release mechanism (111), wherein the locking lever (122, 122') is operable in its non-locking position to allow the handle release lever (110) to move to its actuated position. procedure after Claim 14 , further comprising attaching a blocking element (130, 130') to the housing (42) and configuring the blocking element (130, 130') to the Bewe not to impede movement of the blocking lever (122, 122') while in its non-blocking position, to allow the handle release lever (110) to move to its actuated position, and to allow the blocking lever (122, 122') to move ) while in its blocking position to prevent movement of the handle release lever (110) to its actuated position. procedure after Claim 14 , further comprising providing the locking lever (122, 122') with a first nose portion (123, 123') and a second nose portion (128, 128') extending from a pivot axis (PA) of the locking lever (122, 122') and extending away from each other, and configuring the second nose portion (128, 128') to engage the blocking member (122, 122') when the blocking lever (122, 122') is in its blocking position. procedure after Claim 16 wherein the second nose portion (128) is configured to be between the blocking member (130) and the pivot axis (PA) when the blocking lever (122) is in its blocking position. procedure after Claim 17 , further comprising configuring the first nose portion (123, 123') of the locking lever (122, 122') to engage a rib (124, 124') on the housing (42) when the locking lever (122, 122') is in its rest position, engagement of the first nose portion (123, 123') with the rib (124, 124') causing the locking lever (122, 122') to cause in response to an acceleration of the translational component (23) to pivot to its non-locking position below the predetermined acceleration threshold and to pivot to its locking position in response to an acceleration of the translational component (23) above the predetermined acceleration threshold. procedure after Claim 14 The further comprising providing the locking lever (122') with a stop pin (129) and providing the locking member (130') with a stop hook (131') and configuring the stop hook (131') to lock the stop pin (129). to prevent movement of the handle release lever (110) to its actuated position when the blocking lever (122') is in its blocking position. procedure after claim 19 , the blocking element (130') being arranged so that it is between the pivot axis (PA) of the blocking lever (122') and the stop pin (129) when the blocking lever (122') is in its blocking position, and the stop pin (129) is configured to pivot under the stop hook (131') and out of engagement with the stop hook (131') to allow movement of the handle release lever (110) to its actuated position when the locking lever (122') is in its non-blocking position.

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