CN1690338A

CN1690338A - Latch assembly

Info

Publication number: CN1690338A
Application number: CN 200510071761
Authority: CN
Inventors: T·约翰松; C·芒努松
Original assignee: Southco Inc
Current assignee: Southco Inc
Priority date: 2004-04-16
Filing date: 2005-04-16
Publication date: 2005-11-02

Abstract

A latch assembly having a keyless toggle lock capability and capable of being unlocked by either a low level security key or a master key. When a user rotates the front handle or rear handle the actuator of the latch assembly provides for sliding movement of a sliding element so as to provide for actuation of a latching means.

Description

Latch assembly

Technical field

The present invention relates to a kind of latch assembly in general.

Background technology

Latch assembly is known in the art, and is used to the member of locking and unlatching door or panel and so on.

In addition, often need the lock tube of bolt-lock to have the function of use usually except opening than the master key the key of low level security.These indivedual members in the crewman need enter the captain also to be needed in the marine use occasion of the individual areas that enters particularly like this.Yet the there may be the ' locked ' zone that only allows the captain to arrive.In this case, the captain will need the key of a high safe level or zone that master key enters him and all hands's zone.

In the lock tube of many prior aries, door or panel that the lock tube has been installed must be the same thick with the live part of the key length of inserting the lock tube.Because the length of lock tube, this often causes very long from the outstanding lock tube in the back side of door or panel.Therefore, because spatial constraints, need a kind ofly hold thin lock tube or the in other words door or the shutoff device of the short as far as possible lock tube of the axial length of lock tube, thereby do not give prominence in the lock wound packages is crossed the threshold the time at the front or the back side of door.

Therefore, the lock tube that needs bolt-lock Men Houzhong, that have the master key function that a kind of lock tube that can be contained in prior art can not be received.

Need the little bodily fuctions of a kind of profile to learn latch assembly, can open by swing handle, a side of latch assembly is easy to use manual lock, and uses second lock that utilizes key at the opposite side of latch assembly.

The present invention In view of the foregoing and in order to overcome the deficiencies in the prior art develops.

Summary of the invention

According to the present invention, the purpose of this invention is to provide the latch assembly that a kind of bodily fuctions of meeting learns, the manual lock of wieldy latch assembly one side when it has in the sliding bolt locking device is packed door or panel into, and second lock of the use key on the sliding bolt locking device opposite side.Described latch assembly can be by the rotating drive of latch-bolt lock handle.

The purpose of this invention is to provide a kind of door of different-thickness or modified lock tube with master key function of shutoff device of easily being suitable for.

Another object of the present invention provides a kind of door lock tool of easy operating.

Further object of the present invention provides a kind of have profile or the very little lock tube of thickness, and it can be used to space and the restricted application scenario of thickness.

Further object of the present invention provides a kind of lock tube of available two different annular ring assemblings, and one of them annular ring is designed to only use master key operable lock tube, and another annular ring is designed to be used in master key or low level security key operable lock tube.

No matter another goal of the invention of the present invention a kind ofly locks that to be in locking still be that unlocking condition does not all influence the function trigger button that the user utilizes the manual bolt-lock button that is provided with on manual key or the bolt-lock to come locking and opens bolt-lock if providing.

Further object of the present invention provides a kind of lock tube that the installation of making is simple, operate reliable structure member that has.

Purpose of the present invention is fixed shutoff device or the latch assembly of throwing off is achieved at locked position and keeper by being used for.Described latch assembly is movably between locked position and enable possition.The latch-bolt lock device preferably includes lock unit, this lock unit preferably includes a ratchet driver part, rotating first rotary pawl, and second rotary pawl with control lever, in case ratchet driver part start-up control bar, described first rotary pawl just meshes with second rotary pawl, thereby described first rotary pawl of driving and described second rotary pawl turn to locked position and keeper engagement.This lock unit comprises that also one is biased into the biasing device of locked position with described ratchet driver part.

In the sliding bolt locking device, be provided with the driver drives of a replacement ratchet driver part.This driver comprises that one has the sliding members of sliding members recess.The locking mechanism of this latch assembly comprises that one has the trigger button of a trigger button projection.This trigger button can move this trigger button projection and make trigger button projection and the engagement of sliding members recess, thereby makes latch assembly place sliding members not allow the lock-out state that moves.This trigger button also can be moved the trigger button projection not with sliding members recess position engaged, thereby the unlocking condition that makes the latch-bolt lock device place to allow sliding members to move.

This locking mechanism comprises that one has the lock tube of a locking bolt, and this locking bolt rotates the lock ring with lock ring projection, thereby in case engages with trigger button and during rotating lock bolt, just optionally latch assembly is placed lock-out state or unlocking condition by the lock ring projection.

At least one is set on latch assembly is used to drive driver and for sliding members provides the handle of slip, so that sliding members driver drives locking device.The rotation of handle makes to win and drives the rotary part rotation, make second to drive the rotary part rotation subsequently again, this second drives rotary part and has a cam-like projection that acts on left sliding members projection or right sliding members projection and drive, thus mobile sliding members and make sliding members drive latch member.

Purpose of the present invention is equally by being achieved for lock tube that key disposed.The master key function is achieved with the profile of improving low level security key by annular ring being appended on the basic lock barrel structure.For the master key function is provided, each key need provide independent key profile.The processed ratio low level security key of the part of one of them tooth of master key is dark, and has a key stop at the position that key bit connects the shank of the key.When lock tube has been assembled the main loop circle, owing on the main loop circle that is provided with on the lock tube front portion, be provided with tooth, thus preventing that limited accass or low level security key from entering in the lock tube, the lock tube can be only by master key rather than by restricted low level security key operation.Master key operable locks tube still when lock tube is installed the low level security annular ring with the existing tongue piece of main loop circle.

Description of drawings

Below by reading detailed description of the present invention in conjunction with the accompanying drawings, will be readily clear of and further understand feature of the present invention, advantage and enforcement, wherein identical Reference numeral refers to same parts, wherein:

Fig. 1 is the lateral view for the low level security key of the present invention's use;

Fig. 2 is the elevation for the lock tube with low level security annular ring of the present invention's use;

Fig. 3 is the lateral view for the master key of the present invention's use;

Fig. 4 is the elevation for the lock tube with main loop circle of invention use;

Fig. 5 shows a low level security annular ring for the present invention's use, at the lock tube of locking states and the phantom drawing of low level security key;

Fig. 6 shows the phantom drawing of a low level security annular ring for the present invention's use, at the lock tube of unlocking condition and the phantom drawing of low level security key;

Fig. 7 shows a low level security annular ring for the present invention's use, at the lock tube of locking states and the rear elevation of low level security key;

Fig. 8 shows a low level security annular ring for the present invention's use, at the lock tube of locking states and the lateral view of low level security key;

Fig. 9 shows a low level security annular ring for the present invention's use, at the lock tube of unlocking condition and the lateral view of low level security key;

Figure 10 is the exploded view for the lock tube that does not comprise a main loop circle or a low level security annular ring of the present invention's use;

Figure 11 shows the low level security annular ring for one embodiment of the present of invention use, at the lock tube of locking states and the exploded view of low level security key;

Figure 12 is the vertical view for the low level security annular ring of the lock tube use of one embodiment of the present of invention;

Figure 13 is the phantom drawing for the low level security annular ring of the lock tube use of one embodiment of the present of invention;

Figure 14 uses, does not show the phantom drawing of the lock tube of low level security annular ring or main loop circle for one embodiment of the present of invention;

Figure 15 uses, does not show the lateral view of the lock tube of low level security annular ring or main loop circle for one embodiment of the present of invention;

Figure 16 is mounted in the rear elevation that the latch assembly of the present invention on the keeper of framework was gone up and be latched to door, and described framework local section is analysed and observe, so that plunger and lock unit are shown;

Figure 17 is in the enable possition and the back perspective view that is installed in the latch assembly of the present invention in the door is shown;

Figure 18 is the exploded view of latch assembly of the present invention at locked position;

Figure 19 is the exploded view of a preferred embodiment of latch assembly of the present invention at the lock unit of enable possition;

Figure 20 is the back side view of latch assembly of the present invention at locked position;

Figure 21 is the back perspective view of latch assembly of the present invention at locked position;

To be latch assembly of the present invention unblanking or the toe side view of enable possition Figure 22;

To be latch assembly of the present invention unblanking or the back side view of enable possition Figure 23;

Figure 24 is the front perspective view of latch assembly of the present invention in non-locking or enable possition;

Figure 25 shows the back perspective view of the latch assembly of the present invention on the keeper that is latched to framework, but the door of not shown installation locking bolt;

Figure 26 shows the phantom drawing of the sliding members of the present invention of hook;

Figure 27 is the fragmentary, perspective view of driver of the present invention;

Figure 28 is the exploded view of driver frame and trigger button;

Figure 29 is the elevation of actuator substrate of the present invention;

Figure 30 is the lateral view that is in second embodiment of the latch assembly of the present invention under the locking states, shows the part section of the lock unit with single-pawl;

Figure 31 is the phantom drawing of the latch assembly of the second embodiment of the present invention at unlatching or unlocking condition;

Figure 32 is the exploded view that the lock unit of a latch assembly single-pawl, the second embodiment of the present invention is shown;

Figure 33 shows actuator substrate, the toe side view of the second embodiment of the present invention that driver frame and single-pawl front portion and bonnet are removed;

Figure 34 is the lateral view that the rear portion of that driver frame is removed, the second embodiment of the present invention is shown.

The specific embodiment

Figure 16 and 25 shows the latch assembly that is in the first embodiment of the present invention under the locking states that is fixed on the keeper 74, and Figure 17 shows the slip locking device that is installed in the door 29.Figure 19 shows the exploded view of the lock unit of first embodiment.Lock unit comprises that a ratchet actuator 31, can be around first rotary pawl 41 of the first rotary pawl pin, 42 rotations.In the illustrated embodiment, first rotary pawl 41 has one first rotary pawl dog 40.Second rotary pawl 49 comprises a control lever 51 and the second rotary pawl dog 48, and rotates around the second rotary pawl pin 50.First rotary pawl 41 is by the engagement and 49 engagements of second rotary pawl of tooth 43, and drive control levers 51 by ratchet actuator 31 and drives second rotary pawl 49 is rotated, so that first rotary pawl 41 and second rotary pawl 49 turn to a locked position and mesh with the keeper 74 shown in Figure 16 and 25.The locking device of this first embodiment also comprises a biasing device 38 to locked position bias pawl actuator 31.In the illustrated embodiment, biasing device is the helical spring 38 to 31 effects of ratchet actuator.The other end of helical spring 38 is pressed on the bottom of turn bolt back cover member 35, and it can be by extending to turn bolt back cover member perforate 36 from turn bolt front cover part perforate 44 pin or screw and turn bolt front cover part 39 combine.

The ratchet actuator 31 of first embodiment can be inserted into and drive in the groove 37, and has a recess 32, and this ratchet actuator 31 has the ratchet actuator screwed hole 34 that is used for ratchet actuator screw 33.Owing to be provided with by screw 47 at locking bolt bending linkage (being hole 76 herein) and locate spiral to turn bolt back cover member 35 and enter locking bolt bending 45 in the threaded hole (not shown) on the turn bolt back cover member 35, the assembling of turn bolt locking device can be more simple and easy, and helical spring 38 can more easily remain on compressive state.For the ease of assembling, during the position of locking bolt bending Y-piece 46 around turning to ratchet actuator screw 33, ratchet actuator 31 can be remained on compressed position.Front cover part screwed hole 81 is used for by the screw (not shown) locking device being appended to a framework.

Illustrated among Figure 30 and 34 at latch assembly locked position, that be fixed to the second embodiment of the invention on the keeper 174, Figure 31 shows the slide latches device that is installed in the door 29.Figure 32 shows the exploded view of locking device.Locking device comprises that a single-pawl actuator 131 and is around single-pawl pin 142 rotating single-pawls 148.In the illustrated embodiment, single-pawl 148 has a single-pawl dog 140.As shown in figure 30, drive control levers 151 by single-pawl actuator 131 single-pawl 148 rotated, so as to make single-pawl 148 move to locked position and with keeper 174 engagements.

Locking device also comprises a biasing device 38 to locked position bias pawl actuator 131.In the illustrated embodiment, this biasing device is one to act on the helical spring 38 of ratchet actuator 131.As shown in the Examples, helical spring acts on the surface of this single-pawl actuator, the other end of helical spring 38 is pressed on the bottom surface of single-pawl back cover member 135, and this back cover member can combine with single-pawl front cover part 139 by pin or the screw 110 that extends to turn bolt back cover member hole 136 from turn bolt front cover part hole 144.Screw 149 shown in Figure 31 can append to this single-pawl locking device on the door 29.

Single-pawl actuator 131 can insert ratchet and drive in the groove 137, and has a recess 132, and this ratchet actuator 131 has the ratchet actuator screwed hole 134 that is used for single-pawl actuator screw 133.

The operation of any one actuator among two embodiment of the present invention provides with reference to the first embodiment of the present invention and by following description.As shown in figure 18, the actuator 82 that is provided in any one of of the present invention first or second embodiment has the sliding members actuator 56 that is used for mobile ratchet actuator 31 when the sliding members actuator is pushed to ratchet actuator 31.Be provided with at least one handle on drive rod 58, for example front handlebar 66 or back handle 67 are used for being activated for sliding members 103 provides the driving of sliding by rotation of drive rod patchhole 95, so that sliding members actuator 56 drives locking devices.Shown in Figure 20-24, the rotation of any one handle makes first to drive whirligig 90 rotations, then make second to drive whirligig 92 rotations, described second drives whirligig 92 has the cam-like projection driving driving that is called the right side protruding 102 or a left side protruding 101 that acts on right sliding members projection 104 and the left sliding members projection 105.The power that acts on left sliding members projection 104 or the right sliding members projection 105 moves sliding members 103, so that sliding members drives locking device.

Driver back shroud 52 with driver bonnet plate hole 57 can be assembled in for example back of door 29 or panel of shutoff device, then, thereby the user of latch assembly can insert key and open latch assembly in driver back shroud keyhole 53, then draw the back handle 67 of this preferred embodiment to open latch assembly clockwise or counterclockwise.As shown in figure 18, be provided with driver front shroud 54, it has the driver protecgulum plate hole 112 that is used for drive rod 58 and drives burr 106 and drives.

When driver 82 was driven, the bar 62 that is attached on the hook 84 of sliding members 103 drove the plunger 72 that is connected with the bar 62 at bar flange 63 places at plunger connector 73 places.

Shown in Figure 26-29, actuator 82 is formed by the driving substrate 69 with substrate drive rod hole 71, substrate trigger button hole 70 and groove 100, drives described groove and is used for cooperating driving with each footing 99 that has the driving framework 85 that drives frame bars perforate 88 equally.On driver frame 85, be provided with hook guide 86 and hook stop 87, be used for the driving of when guiding hook 84 moves, leading.Hook stop 87 limits the mobile of hook 84 in one direction.Guiding side part 97 and middle drive-side part 98 provide the required degree of depth for driver frame 85.

Being installed in second drives second on the pin 94 of tumbler and drives tumbler 92 and have a plurality of teeth, for example tooth 93, they and tooth for example have the tooth 93 that first of drive rod lining 95 drives tumbler 90 and engage, so that provide the engages drive with drive rod 58 to drive.

Be positioned at handle groove, that be preferably helical spring bias piece 91 bias voltage latch assemblies of first rotatable parts 90, with convenient user during along twist grip clockwise or counterclockwise, handle is biased to that locking device is closed and plunger 72 drives along the released position that the driver direction withdraws from.Plunger 72 shown in Figure 16 engages with second keeper 111.

The driving spring 75 that is installed on the driving spring pin 96 provides resistance to stop the user to move sliding members 103 on the direction of locking device.

For the reliable operation of sliding members 103 is provided, sliding members is equipped with second director element 107 and first director element 108 drives tumbler 92 to second respectively and the first driving tumbler 90 provides guiding.

The slide latches device can and be unblanked by two kinds of different lockings: use key, most preferably use as shown in figs. 1 and 3 low level security key 1 or master key 12, perhaps by the trigger button 60 on the operation locking mechanism as shown in figure 23.

Trigger button 60 has a trigger button projection 61.Trigger button 60 can mobile trigger button projection 61, thereby make trigger button projection 61 engage with sliding members recess 55 latch assembly is placed the locking states that does not allow sliding members 103 to move.Shown in the preferred embodiment, trigger button 60 also can be moved to the degree that trigger button projection 61 does not engage with moving element recess 55 by rotating trigger buttons 60 around mounting blocks jut 83, so that the released state that places permission sliding members 103 to move latch assembly.Trigger button 60 is mounted by the trigger button hole 79 on the mounting blocks jut 83 of mounting blocks 64.

Figure 20,27 and embodiment shown in Figure 11 in, lock tube 13 has a locked cock 8, it rotates annular actuating ring 7, this annular ring is the locking ring 59 of rotation with locking ring projection 80 then.When the key of user's rotary plunger 8,, will make the locking bolt device optionally place locking states or unlocking condition in case the interior side engagement of the trigger button recess 78 by the trigger button 60 among locking ring projection 80 and Figure 28 is rotated locked cock 8.

As mentioned below, locked cock 8 can be set to by low level security key 1 or master key 12 visits.

Invention as described above allows the user to rotate front handlebar 66 or back handle 67 and drive driver on the direction of ratchet driver 31, and allows the user door of latch assembly or panel locking will be housed to keeper.

In a preferred embodiment of the invention, latch assembly is suitable for using a low level security key and/or a master key.

As shown in Figure 1, low level security key 1 have the grip part 3 and that grips by the user of low level security key from the grip part 3 handles 2 that extend.Each key bit 4 forms at least one key bit of low level security key 1.The handle 2 that the cross section is preferably columniform key 1 is 3 teeth that extend to low level security key 1 from the grip part.Low level security key 1 as shown in embodiment, an end of low level security key 1 are star cross section as shown in Figure 7 and have three key bits that cut 5.Become the low level security key tooth 15 of the 4th key bit in low level security key stop 6, stopping of star cross section remainder.The size of low level security key 1 and structure can be inserted in the lock tube 13 with low level security annular actuating ring 7 shown in Figure 5, touch low level security annular actuating ring 7 up to low level security key stop 6, thereby prevent low level security key 1 further the insertion in the locked cock 8.

The degree of depth of low level security key stop 6 equal from the top of low level security key stop tooth 15 to the distance of the axis of low level security key with from the top of low level security key stop 6 to the difference of the distance of low level security key axis, wherein the degree of depth of low level security key stop 6 is less than the degree of depth of master key retainer 16.

When inserting low level security key 1 or master key 12, what be in locking states in the one or more key bits that cut 5 joint locked cocks 8 and the lock housing 10 is driving the bolt (not shown), and this driving bolt extends to corresponding locking shell hole 24 on the lock housing 10 from the locked cock hole 24 on the locked cock 8.After inserting low level security key 1, this key bit that has cut 5 promotes to drive bolt and aligns with it, this driving bolt is preferably put in place by the biasing device bias voltage of helical spring one class, so that driving bolt, neither one contacts simultaneously with lock housing 10 with locked cock 8, thereby allow that lock housing 10 is with respect to locked cock 8 rotations, the user rotates the grip part 3 of low level security key 1 along clockwise direction as shown in Figure 6 then, so that remove the locking of 10 pairs of plungers 8 of lock housing.

The locking bolt 13 that is shown with low level security annular ring 7 among Fig. 2 drives, also can hold master key shown in Figure 3 12, because it is enough dark from the degree of depth of top measured master key retainer 16 of master key retainer 16 to the top of master key stop tooth 25, be enough to allow master key 12 to enter in the locked cock 8, drive because of contacting with ring retainer 9 on the low level security annular ring 7 to be prevented from further inserting in the locked cock 8 up to master key retainer 16.The degree of depth of master key retainer 16 equals from the top of master key stop tooth 25 to the top of the distance of the axis of master key 12 and master key retainer 16 to the difference of the distance of master key 12 axis.Locking bolt 13 when therefore, being equipped with low level annular actuating ring 7 can be by master key 12 or low level security key 1 operation.

In Fig. 4, be provided with locked cock same as shown in Figure 28 and lock housing 10, but, shown in main loop circle 17 be with of the drivings of screw 19 nail at plunger 8 front ends.The main different main loop driving rings 17 that are of low level driving ring 7 among annular ring 17 and Fig. 2 that drive have a tab 18 that stops low level security key 1 insertion locked cock 8.By contacting of low level security key stop 6 and tab 18, low level security key 1 is prevented from inserting locked cock 8.On the other hand, thus since master key retainer 16 degree of depth darker allow master key stop tooth 25 tab 18 below by, master key 12 can insert plunger shown in Figure 48.So master key 12 can play the effect of master key of the ability of the lock tube 13 when having the lock tube of opening when being equipped with low level security annular actuating ring 7 13 and being equipped with main loop driving ring 17.

Similarly, drive in the lock tube 13 if the user attempts when lock tube 13 is equipped with the main loop circle low level security key 1 inserted, low level security key stop tooth 15 will be stoped by the tab on the main loop driving ring 17 18 enter locking bolt 13.

Figure 10 and 11 shows the exploded view that the present invention has the lock tube 13 of lock housing 10 and locked cock 8.Be assembled on the latch assembly in order to lock tube 13, in the hole 20 of lock housing 10, fork 14 be installed.And lock housing 10 is provided with the plate 21 that is used for keeping biasing device, the groove of the driving bolt in for example helical spring, and lock housing 10 and the locked cock 8.Locked cock 8 also is equipped with the ring support sector 22 of the relative position that is used for keeping main loop circle 17 or low level security annular ring 7.In a preferred embodiment, lock housing 10 is equipped with spherical bearing hole 23, and spherical bearing 27 is arranged at wherein together with the biasing device (not shown) of helical spring and so on.Spherical bearing 27 in the spherical bearing hole 23 is biased to the locked cock 8 with a location groove (not shown), and when locked cock 8 just in time aligns with lock housing 10, the part of spherical bearing 27 will remain in the detent.

Preferably, locked cock 8 and described lock housing 10 are coaxial and can be with respect to described lock housing 10 rotations in described lock housing 10, and make the configuration of described locked cock 8 be suitable for inserting described master key 12 or described low level security key 1.

Low level security annular ring 7 shown in Figure 12 and 13 has an annular ring retainer 9, contacts with key stop 6 when using low level security key 1, contacts with master key retainer 16 when using master key 12.Annular ring retainer 9 can be allows that master key 12 and low level security key 1 insert plunger 8 respectively but play master key retainer 16 or the arbitrary shape of the retainer effect of the part of low level security key stop 6.The tab 18 of main loop circle 17 can be allows that master key 12 inserts up to master key retainer 16 but owing to low level security key stop tooth 15 is not allowed Any shape, thickness and the form that low level security key 1 is inserted with contacting of tab 18.

Tab 18 extends to the inside of the circle that is formed by main loop circle 17, and tab 18 allows that master key stop tooth 25 inserts plunger 8 contacts main loop circle 17 up to master key retainer 16 tab 18.

When the user carries out release and rotates master key 12 and low level security key 1 lock tube 13, be preferably annular

main loop circle

17 or 28 pairs of bolt-locks of the drive division on the low level security annular ring 7 or lock and lock tube 13 devices that carry out release driven by it.

By comparison diagram 1 and Fig. 3 as can be seen, a master key and a low level security key can be preferably provided on the key bit of two keys and can have identical key bit.But when the basic lock tube configuration of locked cock and lock housing was equipped with a main loop circle, then only master key can be opened this lock tube.When the lock wound packages was furnished with the low level security annular ring, the lock tube can be opened by a low level security key or master key at that time.

Under the situation that does not break away from the spirit and scope of the invention, can do multiple change to foregoing invention.Therefore description above should be understood to illustrative implication but not determinate implication.Under situation about not departing from the scope of the present invention with purport, can substitute and retrofit.

Claims

1, a kind of driver that is used for driving the latch assembly lock unit is fixed to closure element on the keeper that is in locked position, and described latch assembly can be movable between locked position and enable possition, and described driver comprises:

One driver part is used for driving this driver when this driver part rotates, this driver part can rotate along clockwise direction with counterclockwise with respect to the off-position of driver part;

One biasing member is used for described driver part towards driver by the off-position bias voltage of locking;

One can be driven first of parts rotation drives rotary part;

One has second of at least one projection drives rotary part, and the described second driving rotary part is rotatable owing to engaging with the first driving rotary part;

One sliding members slidably mobile with respect to this driver, this sliding members has at least one sliding members projection;

Wherein, the rotation of driver part is ordered about described second and is driven rotary part and rotate, thereby described at least one sliding members projection acts on the described sliding members, makes described sliding members slide with respect to driver and drives lock unit.

2,, comprise that further one is used for second biasing member of described sliding members away from described lock unit bias voltage according to the driver of claim 1.

3, according to the driver of claim 1, further comprise a driver frame, wherein, this sliding members can slide in driver frame.

4, according to the driver of claim 1, further comprise a driver handle that is connected with driver part, be used for rotating this driver part by the rotating driver handle.

5, according to the driver of claim 1, be combined with the plunger part that a link and that is connected to sliding members is connected to link, be used for engaging with one second keeper.

6, according to the driver of claim 1, comprise that further one is used for the lock unit of the described driver of locking, this lock unit has a protuberance, and this lock unit can protuberance engage sliding members and stop locked position that sliding members moves and unlocked position that described protuberance does not engage described sliding members between move.

7, according to the driver of claim 6, further comprise lock core, lock core has the locking ring, the locking ring has locking ring projection, described locking ring can combine with described lock unit, thereby, when rotating, the locking ring makes the rotation of the locking ring described lock unit that between locking states and released state, pivots by the combining of locking ring projection and described lock unit.

8, a kind of latch assembly comprises the driver that is fixed to the lock unit on the keeper that is in locked position and drives described lock unit, and described lock unit can be movable between locked position and enable possition, and wherein this lock unit comprises:

One single ratchet, this single-piece ratchet can rotate in lock unit, and this single-piece ratchet has the ratchet that a control lever and engages with a keeper during at locked position when lock unit;

One single ratchet driver can move in lock unit, and this single-piece ratchet driver has a meshing part that is used to mesh the control lever of this single-piece ratchet;

One act on the described single-piece ratchet driver, be used for the biasing member of this single-piece ratchet driver towards the locked position bias voltage;

Wherein, described single-piece ratchet driver makes described single-piece ratchet turn to the enable possition back to the mobile of biasing device in lock unit, and

Wherein, described driver comprises:

One driver biasing member is used for described driver part towards driver by the off-position bias voltage of locking;

One can be driven the first driver rotary part of parts rotation;

One has the second driver rotary part of at least one projection, and the described second driver rotary part is rotatable owing to engaging with the first driving rotary part;

Thereby the rotation of driver part makes the described second driver rotary part rotate, so that described at least one sliding members projection acts on the described sliding members, makes described sliding members slide with respect to driver and drives lock unit.

9, lock unit according to Claim 8 is characterized in that, biasing member is a helical spring.

10, a kind of latch assembly comprises the driver that is fixed to the lock unit on the keeper that is in locked position and drives described lock unit, and described lock unit can be movable between locked position and enable possition, and wherein this lock unit comprises:

One first ratchet, first ratchet are rotating in lock unit, and first ratchet has the ratchet that a control lever and engages with a keeper during at locked position when lock unit;

One second ratchet, second ratchet is rotating in lock unit, first ratchet has the ratchet that a control lever and engages with a keeper during at locked position when lock unit, with at least one projection, because at least one bump bonds of first ratchet and second ratchet, described first ratchet is rotating;

One in lock unit ratchet driver movably, the ratchet driver has a meshing part that is used to mesh the control lever of first ratchet;

One act on the ratchet driver, be used for the biasing member of ratchet driver towards the locked position bias voltage;

Wherein, the ratchet driver makes win ratchet and second ratchet turn to the enable possition back to biasing device mobile in lock unit, and

Wherein, described driver comprises:

One can be driven the first driver rotary part of parts rotation;

According to the lock unit of claim 10, it is characterized in that 11, biasing member is a helical spring.

12, according to the latch assembly of claim 11, it is characterized in that, described lock unit comprises that further one has the support of two arms, and one be used to make the pivotal parts that support pivots between the position of engagement of the end engagement of off-position and one of them arm and ratchet driver, and each of the described arm of support is extended from the pivoting point of pivotal parts.