CN1970980A - Latch device - Google Patents
Latch device Download PDFInfo
- Publication number
- CN1970980A CN1970980A CN 200610144936 CN200610144936A CN1970980A CN 1970980 A CN1970980 A CN 1970980A CN 200610144936 CN200610144936 CN 200610144936 CN 200610144936 A CN200610144936 A CN 200610144936A CN 1970980 A CN1970980 A CN 1970980A
- Authority
- CN
- China
- Prior art keywords
- pawl
- latch bolt
- stop device
- locked position
- move
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- Lock And Its Accessories (AREA)
Abstract
A latch device includes a stopping device with moving position, in the moving positon, said stopping device is provided for preventing pawl droping out and jionting with the latch bolt, when the latch bolt is in the completed closing position. The stopping device can be in the form of mounting on the pin or bar of the pawl, and is provided for wedging in the latch bolt for preventing it rotating when the pawl starts to move and breakes away from the joint with the latch bolt. The latch bolt can move from partly closing position or the first safe position to the completed closing position, when the stopping device is in the moving positon.
Description
Technical field
The present invention relates to a kind of locking devicen, especially but be not limited to use locking devicen in motor vehicle automobile door.
Background technology
Known car door comprises and is used for the breech lock that releasedly door is maintained in its closed position.Usually, breech lock is installed on the car door, and can be operated and keep being installed in striker on the fixed structure of car releasedly, and this fixed structure for example is B post or C post.
This class breech lock comprises and is used for the latch bolt that engages with striker, thereby door is maintained in its closed position, and the canonical form of latch bolt is a rotary pawl.Usually, pawl is set engages, move to open position to prevent latch bolt, thereby door is maintained in its closed position with latch bolt.
Yet when vehicle take-offs, the vibration that automobile chassis stands may pass to striker and breech lock.Under high speed and/or vehicle ' spend more rough when surface, the amplitude of vibration may be enough to make the pawl motion to break away from and the engaging of latch bolt, thereby latch bolt may unclamp from striker.
The breech lock of the above-mentioned type clearly, there is potential safety hazard in the breech lock that especially may be caused opening when vehicle operation.Therefore, need a kind of security performance to carry out improved locking devicen to the known for latches device.
Summary of the invention
The locking devicen that the purpose of this invention is to provide a kind of improved form, this locking devicen has solved the problems referred to above.
A first aspect of the present invention provides a kind of locking devicen, it has latch bolt and pawl, described latch bolt can be operated and move to the locked position that keeps striker, described pawl can be operated and move to the locked position that latch bolt is remained on locked position, it is characterized in that, described device also comprises stop device, it can be operated and prevent that optionally described pawl from leaving the motion of its locked position, and then prevents that described latch bolt from leaving the motion of its locked position.
Description of drawings
According to dependent claims and the description of manual subsequently, the other aspects and features of the present invention perspicuousness that will become.Manual subsequently only provides in an exemplary fashion with reference to accompanying drawing, wherein:
Fig. 1 to Fig. 5 is a series of schematic diagrames of the locking devicen of a preferred embodiment of the invention, shows this device under the various modes of operation; And
Fig. 6 is the schematic diagram of the locking devicen of another preferred implementation of the present invention.
The specific embodiment
The locking devicen that is used among Fig. 1 to Fig. 5 on the car door is totally represented with 10.Device 10 comprises holding plate 12, and this holding plate has an oral area that in use receives the striker (not shown).
Holding plate 12 has the 13A of first of substantially flat, and comprises three installing holes 15, and cocoa for example adopts screw, will install 10 by this installing hole and be fixed on the door.The 13A of this first has an otch 13C who forms the part oral area.
Holding plate 12 has the second portion 13B that is substantially perpendicular to the 13A of first stretching, extension, and this second portion 13B comprises the otch (being shown as 13D among Fig. 1) that forms the oral area other parts.
Pawl pin (claw pin) 16 protrudes from holding plate 12, and the latch bolt of pawl 17 forms is rotatably installed on the pawl pin 16.Although show, should understand and be provided with pawl spring (claw spring) and when door is opened, as illustrated in fig. 1 pawl 17 be biased to open position in the counterclockwise direction.
Pawl 17 has the oral area 17A that in use keeps striker releasedly.The side of oral area 17A defines closes abutment surface 17B.At the opposition side of oral area 17A, pawl 17 defines nose 17G.
In open position shown in Figure 1, the oral area 17A of pawl 17 is arranged on the opposite of holding plate 12 oral areas, makes to close the oral area of abutment surface 17B towards holding plate 12, and then makes and close abutment surface 17B and engage with striker when door is closed.
The outside of adjacent pawl 17 comprises and closes the abutting part 17C and the first safe abutting part 17D fully with closing abutment surface 17B, and they all have basic radial surface separately.And abutting part 17C and 17D and are separated by a transitional surface 17E along the periphery of pawl 17 separately.Except the first safe abutting part 17D, the outside of pawl 17 also defines stationary part (rest portion) 17F.
Pawl pin 18 protrudes from holding plate 12.Pawl 19 is rotatably installed on the pawl pin 18.In this embodiment, pawl 19 defines a pair of arm 19A and 19B, and arm 19A and 19B are separately positioned on the both sides of pawl 19, and in use extends along the rightabout that leaves pawl pin 18.Cat's paw (pawl tooth) 20 is arranged on an end of arm 19 and engages with pawl 17, in case claw stop 17 rotates, this will launch to describe hereinafter.
Pawl spring (pawl spring) (not shown) is set, makes pawl 19 be setovered clockwise as shown in Figure 1 and engage with pawl 17.
On the second arm 19B of pawl 19 stop member is installed rotatably by pin 23, its form is the non-resilient pin or the bar 22 of substantially rigid.Bar 22 has the end of release 22A and stops end 22B.The arm spring (not shown) is set with offset staff 22 along clockwise direction as illustrated in fig. 1.In other place on the pawl 19 or in the breech lock housing, as on holding plate, bar retainer (not shown) is set, in case being rotated in a clockwise direction, stopping bar 22 surpasses position shown in Figure 1.
Can operate pawl releasing parts 24 and pawl is broken away from and the engaging of pawl 17.Releasing parts 24 be arranged to the breech lock opposite side on pawl elevating mechanism (not shown) interrelate, be used to open locking devicen 10, this will be described in more detail below.
Below will begin the typical operation expansion description to installing 10 from position shown in Figure 1, locking devicen 10 is installed on the car door among Fig. 1, and door is shown in an open position.
Device shown in Fig. 1 is in full open position, and the oral area 17A of its median claw 17 prepares to receive the striker that is installed on a certain standing part of doorframe towards the oral area of holding plate 12.More specifically, bar 22 is arranged on the movable blocking position with respect to pawl 19, and the end 22B that stops of its king-rod 22 protrudes in the oral area 17A of pawl 17, thus with close abutting part 17C fully and engage.The anti-stopping bar 17 of bar retainer turns clockwise and surpasses moving position shown in Figure 1, thereby makes bar 22 that pawl 17 is remained on its fully open position.
Perhaps, can for example adopt the retainer restriction pawl 17 that is formed on the holding plate 12 to be rotated counterclockwise and surpass fully open position shown in Figure 1.
Should notice that the releasing parts 24 shown in Fig. 1 is in resting position, wherein releasing parts 24 is configured to contact with the release end 22A of bar 22.And by the clockwise direction effect of pawl spring, the static surface 17F that cat's paw 20 is biased to pawl 17 connects.
If door is closed subsequently, then be installed in the oral area that striker on the vehicle stationary part will pass holding plate 12, enter the oral area 17A of pawl 17 then.Therefore, striker will contact with the abutment surface 17B that cuts out of pawl 17, thereby pawl 17 is rotated along closing direction around pawl pin 16, be illustrated in figure 1 as along clockwise direction the bias of opposing pawl spring.
If only apply the slight power of closing to door, then striker will make pawl 17 rotate to as shown in Figure 2 first home, and locking devicen is in the part closed condition among Fig. 2.Along with pawl 17 rotates to position shown in Figure 2 from position shown in Figure 1, under the clockwise bias of pawl spring, cat's paw 20 keeps slightly contacting with static surface 17E, and then engages with the first safe abutting part 17D.
At the first home place, the first safe abutting part 17D is biased and engages with cat's paw 20, and vice versa.Therefore, under the effect of pawl and pawl spring, locking devicen 10 is maintained at first safe condition shown in Figure 2.Like this, when locking devicen 10 was in described first safe condition, striker was kept by pawl 17, thereby prevented that door is opened, and prevented that especially door is opened when stationary vehicle.
When door is in first safe condition, can applies external pressure for example overcoming the sealing force of door to door, and then close door and make locking devicen 10 be in as shown in Figure 3 buttoned-up status.The load that is applied on the door is delivered to striker by pawl 17, causes pawl 17 along the closing direction rotation subsequently again, i.e. edge clockwise direction rotation as shown in Figure 1.When bar 22 was in active state, pawl 17 can be at first home and is rotated freely between the fastening position fully.Especially, the geometry of pawl makes nose 17G from the extension degree of radially extending the degree and the first safe abutting part 17D of pawl pin 16 and inequality, thereby breaks away from stopping of bar 22 during the rotation closing of pawl 17 when bar is in movable blocking position and hold engaging of 22B.
Should be appreciated that when pawl 17 when buttoned-up status is rotated, cat's paw 20 remains usually under the effect of pawl spring with transitional surface 17E and contacts, so with close abutting part 17C fully and engage.
Even when bar 22 is in its active state, for example make pawl 17 rotate the buttoned-up status that also directly enters as shown in Figure 3 rapidly by bang door from open position, can cross first safe condition.
Under buttoned-up status, rely on the biasing setting of pawl 17 and pawl 19, close fully that abutting part 17C and cat's paw 20 are biased and butt mutually, and then keep striker and prevent that breech lock is opened.
Yet, the advantage of installing 10 uniquenesses is that it comprises stop device or retainer, the form of stop device or retainer is a bar 22 in the present embodiment, bar 22 is configured to resist breech lock in use for example at the revolving force of running at high speed or travelling and may stand during passing uneven surface, is disengaged to prevent pawl 19 and pawl 17.
Particularly, in the present embodiment, cat's paw 20 with close abutting part 16 fully and be under the situation that the bar 22 of moving position as shown in Figure 3 engages with respect to pawl 19, bar 22 stop that end 22B is arranged near the outside of pawl 17 or offsets with the outside of pawl 17 basically close.Like this, if pawl 19 attempt to be rotated counterclockwise and to leave position shown in Figure 3 around pawl pin 18, then the stopping that end 22B will wedge of bar 22 and with the outside butt of pawl 17, rotate by the anti-stopping bar generation clockwise direction of bar retainer.
Thereby, when bar 22 is in active state and pawl 17 and pawl 19 when all being in complete locked position, as shown in Figure 3, locking devicen 10 is in " counter withdrawing from " state, prevent under this state that pawl 19 and pawl 17 are disengaged, thereby anti-claw stop 17 returns its open position under the effect of pawl spring.
Device 10 relative geometry be preferably configured as the spacing that cat's paw 20 broken away from engage between the outside that stops the relative latch bolt 17 of end 22B when desired distance always is in complete fastening position greater than pawl 19 with abutment surface 17C fully (activity stop or " stop " pattern under the corresponding latch bolt of meeting butt).
In order to make device 10 break away from its " counter withdrawing from " state, must operate release lever 24, for example adopt the pawl lifting gear to operate.If release lever 24 is forced to as shown in Figure 3 to move downward against the release end 22A of bar 22, the bias that is rotated counterclockwise and resists arm spring that bar 22 will take place as shown in Figure 3 with respect to pawl 19, thus be in as shown in Figure 4 off-position.
From the motion of bar 22, cat's paw 20 keeps and closes abutting part 17C fully and engage.Like this, pawl 17 temporarily remains and can not rotate along opening direction, but can rotate freely clockwise direction as shown in Figure 4 in opposite direction.
Further operation releasing parts 24 engages it down, as shown in Figure 5 with the upper surface of arm 19B on the pawl 19.This causes pawl 19 to rotate in the counterclockwise direction, and driving pawl 17 turns clockwise, and breaks away from and the engaging of pawl 17 until cat's paw 20.Pawl 17 freely turns back to its open position under the effect of pawl spring then, thereby door is opened.
Device is totally with 100 expressions in another kind of embodiment shown in Figure 6.This embodiment and Fig. 1 are basic identical to device 10 shown in Figure 5, and difference is that bar 22 comprises a pivot section 102, and this pivot section is biased to position shown in Figure 6 by spring 104.
To installing 100 operation with basic identical to the operation of device 10 shown in Figure 5 to Fig. 1, but pivot section 102 can rotate counterclockwise along with depressing of parts 24, thereby allow pawl 19 to be easier to break away from and the engaging of pawl 17, to overcome any resistance or the frictional force that exists between bar 22 ends and the pawl 17.
Operation and Fig. 1 of device 100 are basic identical to the device 10 of Fig. 5, difference is, when pressing member 24, pivot section 102 can rotate counterclockwise, thereby make pawl 19 can more easily break away from pawl 17, particularly overcome the end of bar 22 and any pulling force and the frictional force between the pawl 17.
Other stop device or retainer can be set leave the rotation of pawl 17 or the motion that is disengaged optionally to prevent pawl 19.For example, this device can comprise can be along the pin perpendicular to the axially-movable of pawl or pawl Plane of rotation, thereby directly stops with pawl when device is in complete lock-out state and combine to prevent that it from rotating.
Claims (12)
1. a locking devicen (10), it has latch bolt (17) and pawl (19), described latch bolt can be operated and move to the locked position that keeps striker, described pawl can be operated and move to the locked position that latch bolt is remained on locked position, it is characterized in that, described device also comprises stop device (22), and it can be operated and prevent that optionally described pawl from leaving the motion of its locked position.
2. locking devicen according to claim 1 is characterized in that, the form of described stop device (22) is a rigid pins.
3. locking devicen according to claim 1 and 2, it is characterized in that, described stop device (22) has the moving position that prevents described pawl (19) motion when described pawl is in its locked position, and makes described pawl can leave the non-moving position of the motion of its locked position.
4. locking devicen according to claim 3, it is characterized in that, described latch bolt (17) can move to the part fastening position and striker is remained on primary importance from open position, also can move to complete fastening position and striker is remained on the second place from described part fastening position, wherein when described stop device (22) was in its moving position, described latch bolt can freely move to described complete fastening position from described part fastening position.
5. according to any described locking devicen in the claim 1 to 4, it is characterized in that, described pawl (19) is rotatable and engage with described latch bolt (17), wherein said stop device (22) can be operated and prevent that described pawl from rotating, thereby prevents that described pawl breaks away from and the engaging of described latch bolt.
6. according to any described locking devicen in the claim 1 to 5, it is characterized in that described stop device (22) is set on the described pawl (19).
7. locking devicen according to claim 6 is characterized in that, described stop device (22) is configured to engage to prevent that described pawl (19) from moving with described latch bolt.
8. according to claim 6 or 7 described locking devicens, it is characterized in that described stop device (22) comprises bar.
9. according to aforementioned any described locking devicen of claim, it is characterized in that, described stop device (22) has and prevents that described pawl (19) from leaving the moving position of the motion of described locked position, described device also comprises releasing parts (24), described releasing parts can be operated and make described stop device move away its moving position, thereby makes described pawl can leave the motion of its locked position.
10. locking devicen according to claim 9 is characterized in that, when described stop device (22) has been moved when leaving its moving position, described releasing parts (24) can be operated and make described pawl (19) move away its locked position.
A 11. locking devicen (10), it has latch bolt (17) and pawl (19), described latch bolt can be operated and move to the locked position that keeps striker, described pawl can be operated and move to the locked position that latch bolt is remained on locked position, it is characterized in that, described device also comprises stop device (22), it can be operated and prevent that optionally described pawl from leaving the motion of its locked position, and wherein said stop device (22) is installed in described pawl (19) and goes up and engage with described latch bolt.
A 12. locking devicen (10), it has latch bolt (17) and pawl (19), described latch bolt can be operated and move to the locked position that keeps striker, described pawl can be operated and move to the locked position that latch bolt is remained on locked position, it is characterized in that, described device also comprises stop device (22), it can be operated and prevent that optionally described pawl from leaving the motion of its locked position, wherein said stop device (22) is installed on the described pawl (19), described stop device (22) has the moving position that prevents described pawl (19) motion when described pawl is in its locked position, and make described pawl can leave the non-moving position of the motion of its locked position, wherein said latch bolt (17) can move to the part fastening position and striker is remained on primary importance from open position, also can move to complete fastening position and striker is remained on the second place from described part fastening position, wherein when described stop device (22) was in its moving position, described latch bolt can freely move to described complete fastening position from described part fastening position.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0524086.6 | 2005-11-25 | ||
| GB0524086A GB0524086D0 (en) | 2005-11-25 | 2005-11-25 | Latch arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1970980A true CN1970980A (en) | 2007-05-30 |
Family
ID=35601259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610144936 Pending CN1970980A (en) | 2005-11-25 | 2006-11-22 | Latch device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1970980A (en) |
| GB (2) | GB0524086D0 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108729772A (en) * | 2017-04-21 | 2018-11-02 | 开开特股份公司 | Motor vehicle door lock |
-
2005
- 2005-11-25 GB GB0524086A patent/GB0524086D0/en not_active Ceased
-
2006
- 2006-11-22 CN CN 200610144936 patent/CN1970980A/en active Pending
- 2006-11-24 GB GB0623484A patent/GB0623484D0/en not_active Ceased
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108729772A (en) * | 2017-04-21 | 2018-11-02 | 开开特股份公司 | Motor vehicle door lock |
| CN108729772B (en) * | 2017-04-21 | 2019-11-29 | 开开特股份公司 | Motor vehicle door lock |
Also Published As
| Publication number | Publication date |
|---|---|
| GB0623484D0 (en) | 2007-01-03 |
| GB0524086D0 (en) | 2006-01-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |