CN105178743B - Lock bolt with the spring for bell crank lever - Google Patents

Abstract

A kind of lock bolt has：Forkbolt；Locking rod；And bell crank lever, wherein when the bell crank lever moves from the first position to the second place, the bell crank lever makes the locking rod be moved from the position latching to the unlocked position；And more central spring, a part for its housing for being fixed to the bell crank lever at one end and the lock bolt being fixed in the other end, wherein described more central spring is configured to provide the biasing force towards first position to the bell crank lever in the first direction when the bell crank lever is in first position, and the more central spring is configured to provide the biasing force towards the second place to the bell crank lever in a second direction when the bell crank lever is in the second place.

Description

Lock bolt with the spring for bell crank lever

Technical field

Each embodiment of the present invention is related to lock bolt and more particularly to vehicle lock bolt.

Background technology

In some applications, lock bolt need to perform many behaviour in the finite boundary of the application region for the object for being provided with them Make.

Some vehicles are commonly called as boot equipped with rear car reserve tank.The boot is closed by the case lid for being hinged to car body, Case lid rotation is opened to provide the entrance into reserve tank.Similarly, other vehicles are provided with lifting door, lifting door by In the roof line of vehicle or roof line is be hinged nearby and the door that can open up allows access into vehicle rear.Vehicle can also have There is the door for sliding or otherwise moving between open and closed positions.It is every in the case lid, lifting door OR gate One removable panel that can be considered as allowing access into vehicle or interior.Compartment lock bolt, make the face of these types Each in plate can be fixed and closed.

When needing to open these panels, it is known to use a kind of long-range solution bolt mechanism, it releases locking rod and forkbolt Engagement, it is allowed to which lock pin removes from the pallet (or throat) of forkbolt.Advantageously, the case lid, lifting door OR gate are due to these Buffer units included in panel or around these panels, spring, compressed gasketing material, motor etc. and will be de- with lock pin From and be biased away from latching.However, when the panel it is described solution bolt mechanism start after immediately or shortly afterwards do not bias from When opening the opening, cause locking rod to release and powered off with the long-range solution bolt mechanism of the engagement of forkbolt.Locking rod can be in the face Plate is re-engaged before being opened with forkbolt, and therefore panel can not be opened, even if the solution bolt mechanism is activated.If When locking rod and forkbolt unlock, panel is unable to autobias opening, keeps locking rod to be in the unlocked position until panel can be by hand Dynamic opening is favourable.

Therefore, also it is desirable to provide a kind of device or part or operating method, it is expected not meet that it prevents lock bolt The morphological operations of lock pin operation are positioned.

The content of the invention

In a non-limiting embodiment, there is provided a kind of lock bolt.The lock bolt has：Forkbolt, it is movably To move between open and closed positions in the lock bolt；Locking rod, it is movably mounted at the lock To be moved between position latching and unlocked position in door bolt, wherein when the locking rod is located at the position latching, the lock Only bar prevents the forkbolt from being moved from the closed position to the open position；Bell crank lever, it is movably mounted at described To move between the first position and the second position in lock bolt, wherein when the bell crank lever is from the first position to described second When position is moved, the bell crank lever makes the locking rod be moved from the position latching to the unlocked position；And more center Spring, a part for its housing for being fixed to the bell crank lever at one end and the lock bolt being fixed in the other end, wherein The more central spring is configured to provide court to the bell crank lever in the first direction when the bell crank lever is in first position The biasing force of first position, and the more central spring is configured to when the bell crank lever is in the second place in a second direction The biasing force towards the second place is provided to the bell crank lever.

In another non-limiting embodiment, there is provided a kind of locking rod is taken off from the engagement with the forkbolt of lock bolt The method opened.This method comprises the following steps：Forkbolt is pivotably mounted in the lock bolt with open position and closing Moved between position；The locking rod is pivotably mounted in the lock bolt to be moved between position latching and unlocked position Dynamic, wherein when position latching of the locking rod positioned at engagement, the locking rod engages the forkbolt and prevents the forkbolt Moved from the closed position to the open position；Bell crank lever is removably mounted in the lock bolt with first position Moved between the second place, wherein the bell crank lever is configured to when it is moved to the second place from first position, it connects Close the locking rod and the locking rod is moved to unlocked position from position latching；And when the bell crank lever is in first When putting, the bell crank lever is biased towards first position in the first direction, wherein more central spring is fixed to the song at one end Abduction rod and be fixed to a part for lock bolt housing in the other end；And when the bell crank lever is in the second place, along second Direction biases the bell crank lever towards the second place.

These and other advantages and features will be become apparent from showing by being described below of being combined with accompanying drawing.

Brief description of the drawings

Subject of the present invention is highlighted in the claim at ending herein and understands restriction.The present invention's is above-mentioned It will be shown with further feature and advantage by being described below of being combined with accompanying drawing, wherein：

Fig. 1 shows some according to non-limiting example, in main or position latching lock bolt；

Figure 1A is the view of lock bolt in Fig. 1, wherein for the ease of display, some components are removed；

Fig. 2 show it is according to non-limiting example, in opening or some of the lock bolt of solution door bolt position；

Fig. 2A is the view of lock bolt in Fig. 2, wherein for the ease of display, some components are removed；

Fig. 3 is the zoomed-in view of a part for the lock bolt shown in figure ia；

Fig. 4 is the zoomed-in view according to a part for the lock bolt of an alternate embodiment；

Fig. 5 is the cross-sectional view strength of a part for lock bolt housing, wherein the lock bolt is in main or position latching and institute State locking rod and be in bonding station and the bar that stays open of the lock bolt is in first position；

Fig. 6 is the cross-sectional view strength of a part for lock bolt housing, wherein the locking rod is in a disengaged position and the guarantor Hold and open bar and engaged the locking rod and the forkbolt is not rotated away from the position latching also；

Fig. 7 is the cross-sectional view strength of a part for the lock bolt housing, wherein due to forkbolt direction solution door bolt position Mobile, the bar that stays open departs from locking rod；And

Fig. 8 is the cross-sectional view strength of a part for lock bolt housing, wherein described stay open bar and locking rod disengaging and one Forkbolt described in denier rotates the locking rod towards position latching and just engages forkbolt.

Embodiment

As previously described, it is expected to provide some lock bolts with the mechanism for keeping locking rod in desired locations.Especially, one The nonrestrictive design of kind can be incorporated into rear car lifting door latch.It is this have it is described herein stay open bar and The lock bolt of other components provides a kind of mechanism, its be used for ice and snow after locking rod is by electronic unblock and due to accumulation or Other power are acted on door to be made in the case that door is maintained in its closed position, to keep locking rod in an open position or non-around OR gate Bonding station.In order to provide this characteristic, stay open bar and be configured to when locking rod moves away closed position or engagement position Postponing ensures that the locking rod is maintained at opening or unengaged position, until carrying out desired lock bolt operation.

With reference to following United States Patent (USP) 3,969,789；6,568,741；6,679,531；8,348,310 and United States Patent (USP) it is public Open US 2010/0127512；US 2011/0204659；US 2012/0292927 and on March 29th, 2013 submit interim Patent application 61/806,530, the full content of each are added herein by quoting.

Referring now to accompanying drawing, various embodiments of the invention will be described with reference to specific embodiments, but not limit this hair Bright, accompanying drawing shows some of lock bolt or latch assembly 10.

In one embodiment, the lock bolt or latch assembly 10 can be compartment lock bolts.Lock bolt 10 is configurable to protect Hold case cover to lock, the lifting door of vehicle can be kept to lock or the sliding door of vehicle, such as goods closing of the door.Further Ground, the lock bolt 10 can be applied to any need and be latched or solve relative to vehicle on the car door or movable member of door bolt.

As described above, the lock bolt 10 is applied to the environment of any feature for wishing to possess various embodiments of the present invention. For example, the latch assembly can be attached on vehicle structure so that when cover lid, door, window, lifting door etc. are opened and closed When forkbolt moved between open and closed positions, and forkbolt and be attached at it is described cover lid, door, window, lift door Lock engagement Deng on.

Or the lock bolt 10 or latch assembly 10 can be fixed to cover lid, door, window, lifting door etc., and latch quilt It is fixed on the opening of the housing lid of car body, door, window, lifting door etc..

Lock bolt 10 is arranged on first component or the first vehicle component, the first component or the first vehicle component or car Frame (for example, surround or the main element of opening that neighbouring movable part is covered), or movable part (for example, door, Window, lifting door, bonnet etc.), and the lock bolt includes forkbolt or claw 12 and locking rod or ratchet 14.It is each in them It is individual can by pivotably or be movably mounted in the other parts or other housing parts of housing 16 or lock bolt 10.At one In non-limiting embodiment, the forkbolt 12 can rotate around the first post or pin 18, and locking rod 14 can around the second post or Pin 20 rotates.During operation, lock is attached on second component or the second vehicle component, the second component or the second vehicle Component vehicle frame or movable part, which this is fixed to depending on lock bolt 10.

According to an exemplary embodiment, the forkbolt 12 (can at least join in first or position latching or closed position See Fig. 1 and Figure 1A) moved between second or open position (at least referring to Fig. 2 and 2A), in first position or position latching Or lock is engaged by the throat 19 of forkbolt described in closed position, lock can be from forkbolt 12 in the second place or open position Throat 19 freely unlock.The housing of lock bolt 10, which also has, to be used to be engaged by forkbolt in lock or lock is contained in into it during breech lock In cooperation opening 21.In one non-limiting embodiment, forkbolt 12 can be by spring or the fexible bias pressure of biased element 23 extremely Second or open position.

As the flexible bias pressure being applied in forkbolt alternately or additionally, it is described to latch the movable part being fixed to Open position can also be resiliently biased or be biased into, so as to which when lock bolt 10 is unlocked, forkbolt 12 will rotate and discharge lock Button.A non-limiting example for providing the element of this power is determined for the periphery around the opening covered by the movable part The compression wind and rain bar or seal member of position.In other words, when the door is closed, the seal member is compressed and lock bolt 10 connects Close lock.Hereafter when lock bolt 10 is unlocked, the seal member can provide a thrust to open car door or other doors etc.. But as it was previously stated, when power is applied on movable part, these biasing forces (elastic force or other power) e insufficient to move institute Part is stated to open position to make lock be removed by the throat from forkbolt 12.

In operation, in order that lock bolt 10 or forkbolt 12 are maintained at position latching, locking rod or ratchet 14 by can pivot Turn ground to be fixed on lock bolt 10 with bonding station or position latching (at least referring to Fig. 1 and Figure 1A) and disengaged position or solution lock-bit Put and move between (at least referring to Fig. 2 and 2A).When locking rod 14 is located at bonding station, the surface 22 of forkbolt 12 is locked out bar 14 Surface 24 engage, and forkbolt 12 be prevented from from position latching to solution door bolt position movement.In a kind of configuration, surface 22 is locked Only the engagement of surface 24 of bar 14 occurs when the forkbolt is in main or position latching and locking rod 14 is in bonding station.For The secondary position latching of offer, forkbolt 12 are configurable to surface 25, when forkbolt 12 be in secondary position latching (such as It is described main between position latching and open position) and when the close enough bonding station of the locking rod is so that surface 24 by the position engaged with surface 25 when, the surface 24 that surface 25 is locked out bar 14 engages.

In a nonrestrictive embodiment, the first spring can be set to be used to forkbolt being biased into open position, The direction that second spring can be set to be used for along bonding station biases locking rod, make it that movement of the forkbolt to position latching will Locking rod 14 is caused to be moved to bonding station.However, if the component that lock is fixed to is due to acting on the members Power remains turned-off, then the lock may not inadvertently stay in the throat 19 of forkbolt 12 and unless forkbolt 12 rotate to Open position, locking rod 14 can move back to bonding station from disengaged position and prevent forkbolt 12 from rotating to open position.

According to the exemplary embodiment of the present invention, stay open part or bar 26 be removably mounted on lock bolt 10 with Moved between first position (at least referring to Fig. 5 and Fig. 6) and the second place (at least referring to Fig. 7).In addition, lock bolt 10 also includes Bar or bell crank lever 28, the bell crank lever are also removably mounted in lock bolt 10 with first position (at least referring to Fig. 1 and 1A) Moved between the second place (at least referring to Fig. 2 and 2A).

When the bar or bell crank lever 28 move from first position to the second place, the contact site 30 and locking of bell crank lever 28 The contact site 32 of bar 14 forms contact, and makes locking rod 14 from bonding station or position latching to disengaged position or unlocked position It is mobile.In a non-restrictive illustrative embodiment, the contact site 30 of the bell crank lever or bar 28 is not directly or physically The contact site 32 of locking rod 14 is fixed to so that the bell crank lever or bar 28 can promote locking rod 14, but bell crank lever or bar 28 not stretchy locking rods 14.Similarly, locking rod 14 can promote bell crank lever or bar 28 but not stretchy bell crank lever or bar 28. As shown and in certain embodiments, the contact site 30 of bell crank lever or bar 28 is configurable to, with curved surface, work as song When the contact site 30 of abduction rod or bar 28 contacts the contact site 32 of locking rod 14, the curved surface is accommodated in of locking rod 14 In the bending receiving surface 32 matched somebody with somebody.Or bell crank lever or bar 28 can be by regularly (such as pivotly or otherwise) peaces It is filled to locking rod 14.

In addition, when locking rod 14 is moved to disengaged position or unlocked position from bonding station or position latching, holding is beaten Opening lever 26 is moved to the second place from first position (Fig. 5) and then moved back towards first position, so as to stay open bar 26 Part or part 34 engage part or the part 36 of locking rod 14, so as to when the part for staying open bar 26 or the engagement of part 34 lock The only part of bar 14 or during part 36, locking rod 14 is maintained at disengaged position or unlocked position.During this movement, part 34 move along the direction of arrow 38, so that locking rod 14 can be moved to disengaged position and the hereafter described portion for staying open bar 26 34 are divided to be moved along the directions opposite with arrow 38 so that part 34 can engage the part 36 of locking rod 14 and cause locking rod to be protected Hold in disengaged position.

In one embodiment, staying open bar 26 can be formed by resilient material such as plastics, and stay open bar 26 It is integrally formed with the housing parts of lock bolt 10, such as housing parts 16.In this embodiment, housing parts 16 also can be by that can hold The material easily moulded such as plastics are formed.Or stay open bar 26 and can be formed by another material with rebound characteristics, its It is embedded into shaping or is integrally formed with the housing, such as example, by secondary injection molding technique, wherein staying open bar 26 Still it is integrally formed with housing 16 but may includes and be different from being used for the material for forming the housing other parts.But another In alternate embodiment, stay open bar 26 and can be simply fixed in an independent process and be attached to housing 16.

In the embodiment that one is contemplated that, stay open bar 26 or its some is configured to along the side of arrow 38 Moved to the mobile and edge direction opposite with arrow 38.Further, in one embodiment, this movement be with forkbolt 12 with locking rod 14 rotate or the vertical plane of mobile plane or direction or direction on.Or stay open bar 26 can be by structure Make for along being rotated relative to forkbolt 12 in locking rod 14 or the direction of the angled orientation that moves pivotally is moved, such as relatively In the vertical direction of forkbolt 12 and the horizontal direction of locking rod 14.Such as in one embodiment, stay open bar 26 relative to The angular orientation that forkbolt 12 and locking rod 14 move is in the angle more than 0 degree and less than or equal to 90 degree.In other words, along arrow 38 direction and in contrast to arrow 38 direction movement not necessarily perpendicular to forkbolt 12 and the displacement of locking rod 14.

As shown, in one embodiment, stay open bar 26 include the housing a part and so with It is integrally formed, the table of the housing can be placed in the opening of the housing or can be positioned distal from by staying open bar 26 Face is so that desired/required movement for staying open bar 26 is feasible.

It is configured to as described above, staying open bar 26 when locking rod is pivoted or rotated to disengaged position from bonding station When, a part for engagement locking rod 14.Once locking rod 14 is in a disengaged position, stay open bar 26 just down along with arrow 38 Opposite direction is back moved and engages the part of locking rod 14 to prevent locking rod 14 from moving back to bonding station, unless keeping Open bar 26 and have disengaged from its engagement with locking rod 14.As indicated above, it is desirable to allow there is extra time to be fastened with a bolt or latch for forkbolt 12 from it Lock position rotates to its open position and allows forkbolt 12 to be rotated from its position latching to any delay of its open position, this E.g. by means of acting on the power on the component connected with lock, wherein described latch the throat 19 for being accommodated in forkbolt 12 It is interior.

Once forkbolt 12 is rotated to its open position, just it is also expected to making locking rod 14 from its disengaged position from its position latching It is rotated back to its bonding station.For doing so, bar 26 is stayed open to have to depart from locking rod 14.Make locking rod 14 with protecting It is that forkbolt 12 is equipped with inclined surface or cam face 40, when forkbolt 12 to hold and open the non-limiting example that bar 26 departs from When rotating from position latching to open position, the surface is engaged from the protuberance or part for staying open the stretching of the surface of bar 26 42.During this movement, cam face 40 will contact protuberance 42 and make to stay open bar upwards along the direction shifting of arrow 38 It is dynamic, so that the part 34 for staying open bar 26 does not rejoin the part 36 of locking rod 14.At this moment, by spring 44 to locking rod 14 There is provided spring bias causes the locking rod to be rotated from disengaged position to bonding station.In addition, such as at least in Fig. 5 into Fig. 7 Shown, forkbolt 12 has elevated surface or platform 46, will stay open bar 26 and is maintained at relative with protuberance 42 The second place, when the forkbolt be in its open position or from the position latching towards its open position advance (see, for example, Fig. 5 to Fig. 7) when, the protuberance is resisted against on the surface lifted or platform 46.

Therefore, when locking rod 14 is moved to disengaged position for example, by actuator from the bonding station, locking rod 14 Will remain in disengaged position until it is described stay open bar and be manipulated to leave stay open bar part 34 and engage locking rod 14 The position of appropriate section or part 36.As described above, this will be moved in desired forkbolt 12 (such as from position latching rotate to Open position) prevent undesirable lock bolt 10 from operating such as remote de-locking lock bolt and subsequent and relocking the lock bolt before.

In order to provide movement desired, that locking rod 14 is from bonding station to disengaged position, provided with actuator or actuating System 48.In one embodiment, actuator or actuating system 48 include the motor 50 for being configured to drive worm screw 52, the snail The worm gear 54 that bar is used to make to be rotatably mounted in lock bolt or latch assembly 10 rotates.Worm gear 54 is also operationally connected to bell crank lever Or bar 28, it may be also pivotally mounted in lock bolt or latch assembly 10.In one embodiment, the rotation of worm gear 54 can cause Bell crank lever or bar 28 are moved to its second place by means of multiple gears 56 in bell crank lever or bar 28 from its first position. Gear 56 is configured to engage with multiple gears 55 of worm gear 54.As described above, bell crank lever or bar 28 are from first position to second The movement of position will cause locking rod 14 to be moved to its disengaged position from its bonding station.

In addition, as shown in the drawings, additionally provide more central spring 58.More central spring 58 is fixed at one end To bell crank lever or bar 28 lock bolt 10 is fixed in the other end.In one embodiment, more central spring is included by resilience The slender member of material construction, it can deflect to a diverse location by means of power from original or initial position, wherein from described The movement of home position to the diverse location produces biasing force in the slender member, so that in the case where removing the power The slender member will return to its original or initial position due to caused biasing force.

In one embodiment, slender member, which can be fixed to the point of bell crank lever along an arc from it and extend to, is fixed to housing section The point divided.As at least shown in figs. 3 and 4, the slender member can include wire spring (Fig. 3) or sheet (flat) bullet Spring designs (Fig. 4).Further, in one embodiment, figure 3 illustrates round wires can have cast end to help spring 58 fixation.

When bell crank lever or bar 28 are in first position, spring 58 provides the bias of the first direction along the direction of arrow 70 Power, the biasing force is above bell crank lever or the rotary shaft of bar 28 72, so as to when bell crank lever or bar 28 when referring to accompanying drawing During in first position, provided along the revolving force in the direction of arrow 74 by spring 58.

When actuator 48 is activated, worm screw 52 is driven by motor 50, so that worm gear 54 rotates and bell crank lever or bar 28 Rotated along the direction opposite with arrow 74, until bell crank lever or bar 28 are in the second place.At this moment, more central spring 58 is now in The position at least shown in figs. 2 and 2 a, so as to which more central spring 58 provides the bias of the second direction along the direction of arrow 76 Power, when referring to accompanying drawing, the biasing force is below bell crank lever or the rotary shaft of bar 28 72, so as to along the rotation in the direction of arrow 78 Power is applied to bell crank lever or bar 28 by spring 58.

When bell crank lever or bar 28 are moved to its second place from its first position, spring 58 keeps bell crank lever or bar 28 In second or disengagement (solution door bolt) position against locking rod 14.When forkbolt 12 fastens position rotation and surface 40 with a bolt or latch from position latching towards solution When staying open bar 26 from first position to the second place with 46 manipulations, bias is provided to locking rod 14 along the direction of bonding station The spring 44 of power makes locking rod 14 be rotated from disengaged position to bonding station.

Spring 44 is configured to provide biasing force, and its is sufficiently large to overcome the biasing force along the direction of arrow 76 of spring 58, So as to which locking rod 14 can be rotated from disengaged position to bonding station and makes the direction of bell crank lever or bar 28 along arrow 74 from the Two positions rotate towards first position.In this rotary course, more biasing force of the central spring 58 along the direction of arrow 76 will by gram Clothes, when bell crank lever or bar 28 rotates from the second place towards first position or are manipulated and are connect together with locking rod 14 from disengaged position court When closing position movement, more central spring 58 due to its be fixed to bell crank lever or bar 28 will be relocated and therefore start with 76 phases Applying power on the anti-direction of arrow 70.Once the situation occurs, spring 58 is just by along the direction of arrow 74 to bell crank lever or bar 28 provide revolving force.

In other words, the spring bias of locking spring 44 towards bonding station are better than the crank throw spring bias towards disengaged position Power.One advantage of this configuration is, crank throw spring 58 be held in place bell crank lever 28 with prevent when its its corresponding first Resilience when being moved between the second place.Once spring 58 passes over heart position, its just along arrow 70 direction applying power simultaneously And bell crank lever or bar 28 is completely returned to its initial position, if the initial position likely differs from the bell crank lever or bar 28 Bar 14 is only locked out towards multiple positions during the multiple positions direct drive for preparing breech lock and complete breech lock.

Under normal latch mode, a fixed gap generally between bell crank lever or bar 28 and locking rod 14 be present.It is described Space is removed when motor 50 makes crank throw 28 move to unlock locking rod 14.

Various embodiments of the present invention are applied to rear portion lifting door latch and other use bell crank levers and stayed open The lifting door latch of bar.

Term " first " used herein, " second " and its similar terms, are not offered as any suitable in this application Sequence, quantity or importance, but for a part to be made a distinction with other parts, term herein " one " and "one" The limitation of quantity is not offered as herein, but represents an object being mentioned at least be present.Further, it should be noted that Term " bottom " used herein and " top ", unless otherwise indicated, describe, and be not limited to any just to convenient One position or direction in space.

Include described value, and the implication (example embodied with context when modifier " about " is used in combination with quantity Such as, including the degree of error relevant with particular measurement value).

Although the present invention has been incorporated into limited number, embodiment is described in detail, it will be readily appreciated, however, that this hair It is bright to be not limited to these disclosed embodiments.On the contrary, the present invention can be modified to incorporate numerous changes, the change not yet described More, replacement and equality unit, as long as this modification is adapted with the spirit and scope of the present invention.Although in addition, to the present invention Various embodiments be described, it is to be understood that some aspects of the invention can only include the embodiment in A part.Therefore, the present invention should not be considered limited to description above.

Claims (20)

1. a kind of lock bolt, including：

Forkbolt, it is movably mounted in the lock bolt to move between open and closed positions；

Locking rod, it is movably mounted to be moved between position latching and unlocked position in the lock bolt, wherein working as institute When stating locking rod and being located at the position latching, the locking rod prevents the forkbolt from the closed position to the open position It is mobile；

Bell crank lever, it is movably mounted in the lock bolt to move between the first position and the second position, wherein working as institute When stating bell crank lever and being moved from the first position to the second place, the bell crank lever makes the locking rod from the breech lock position Put to the unlocked position and move；And

More central spring, the one of its housing for being fixed to the bell crank lever at one end and the lock bolt being fixed in the other end Part, wherein the more central spring is configured to when the bell crank lever is in first position in the first direction to the crank throw Bar provides the biasing force towards first position, and the more central spring is configured to the edge when the bell crank lever is in the second place Second direction provides the biasing force towards the second place to the bell crank lever.

2. lock bolt according to claim 1, wherein the more central spring includes the elongated structure constructed by resilient material Part, the slender member, which along an arc from it is fixed to the point of the bell crank lever and extends to it, is fixed to the point of the housing parts.

3. lock bolt according to claim 1, wherein the bell crank lever moves when by gearing from the first position To the second place.

4. lock bolt according to claim 1, wherein the bell crank lever is driven to its second by motor from its first position Put.

5. lock bolt according to claim 1, wherein the bell crank lever is fluidly connected to the locking rod.

6. lock bolt according to claim 5, wherein the lock bolt is constructed such that the locking rod can be by the crank throw Bar is promoted but it can not be pulled by the bell crank lever.

7. lock bolt according to claim 5, wherein the lock bolt is constructed such that the bell crank lever can be by the locking Bar is promoted but it can not be pulled by the locking rod.

8. lock bolt according to claim 1, wherein the bell crank lever has contact site, it is configured to engage locking rod Contact site.

9. the contact site of lock bolt according to claim 1, wherein bell crank lever has bending section, it is configured to engage locking The receiving contact site of the bending of bar.

10. lock bolt according to claim 1, wherein the biasing force in the first direction of the more central spring is applied in On the rotary shaft of the bell crank lever.

11. lock bolt according to claim 10, wherein the biasing force in a second direction of the more central spring is applied in Under the rotary shaft of the bell crank lever.

12. lock bolt according to claim 1, wherein the biasing force of the more central spring is applied in institute in a second direction State under the rotary shaft of bell crank lever.

13. lock bolt according to claim 10, wherein the more central spring is included by the elongated of resilient material construction Component, the slender member, which along an arc from it is fixed to the point of the bell crank lever and extends to it, is fixed to the housing parts Point.

14. lock bolt according to claim 1, wherein the more central spring includes the elongated structure constructed by resilient material Part, the slender member, which along an arc from it is fixed to the point of the bell crank lever and extends to it, is fixed to the point of the housing parts, And wherein described more central spring is pivotably fixed to the bell crank lever and housing.

15. lock bolt according to claim 14, wherein the biasing force in the first direction of the more central spring is applied in On the rotary shaft of the bell crank lever.

16. lock bolt according to claim 15, wherein the biasing force in a second direction of the more central spring is applied in Under the rotary shaft of the bell crank lever.

17. lock bolt according to claim 16, wherein the bell crank lever is moved when by gearing from the first position Move to the second place, and wherein described bell crank lever is fluidly connected to the locking rod so that the locking rod can be by the song Abduction rod promotes but it can not be pulled by the bell crank lever and the contact site of wherein bell crank lever has bending section, and it is configured to engage institute State the receiving contact site of the bending of locking rod.

18. lock bolt according to claim 1, is also included：Bar is stayed open, it is configured in a first position and one Moved between two positions, wherein the bar that stays open has the part for being configured to engage as locking rod unit, so as to work as the lock Disengaged position is maintained at by the bar that stays open when only bar is in the first position.

19. lock bolt according to claim 18, wherein the forkbolt is configured to work as the forkbolt from the closed position When being moved to the open position, make it is described stay open bar and be moved to the second place from the first position, wherein institute State shape between the displacement direction of the moving direction and the forkbolt for staying open bar between open and closed positions Into angled.

20. a kind of method for making locking rod be disengaged from the engagement with the forkbolt of lock bolt, including：

Forkbolt is pivotably mounted in the lock bolt to move between an open position and a closed；

The locking rod is pivotably mounted on to be moved between position latching and unlocked position in the lock bolt, wherein when When the locking rod is located at the position latching, the locking rod engages the forkbolt and prevents the forkbolt from the close stance Put to the open position and move；

Bell crank lever is movably mounted in the lock bolt to move between the first position and the second position, wherein the song Abduction rod is configured to when it is moved to the second place from first position, and it engages the locking rod and makes the locking rod from door bolt Lock position is moved to unlocked position；

When the bell crank lever is in first position, the bell crank lever is biased towards first position in the first direction, wherein more center Spring is fixed to the bell crank lever and is fixed to a part for lock bolt housing in the other end at one end；And

When the bell crank lever is in the second place, the bell crank lever is biased towards the second place in a second direction.