CN102765339B

CN102765339B - Unlocking limit mechanism

Info

Publication number: CN102765339B
Application number: CN201210270985.0A
Authority: CN
Inventors: 吴英振; 刘志; 肖静杰; 王雨川
Original assignee: Great Wall Motor Co Ltd
Current assignee: Great Wall Motor Co Ltd
Priority date: 2012-07-31
Filing date: 2012-07-31
Publication date: 2014-06-25
Anticipated expiration: 2032-07-31
Also published as: CN102765339A

Abstract

The invention relates to an unlocking mechanism, particularly to a cushion lock unlocking mechanism for unlocking a cushion lock of an automobile seat. The unlocking limit mechanism is arranged on a device which is provided with an unlocking mechanism and comprises a fastener, a moving element and an unlocking mechanism, wherein the unlocking limit mechanism comprises a revolving member and a drawing wire traction mechanism; the revolving member is driven by a driving element to revolve along the moving element in relation to the change of fastener sliding distance; the drawing wire traction mechanism swings in relation to a fixed benchmark; the drawing wire traction mechanism is matched to be connected with the revolving member through a revolving limit mechanism; when the revolving member revolves, the revolving limit mechanism limits the swinging of the drawing wire traction mechanism in relation to the fixed benchmark; when the revolving member cannot revolve after revolving for a certain angle, the drawing wire traction mechanism draws the drawing wire connected with the revolving member to swing in order to unlock the cushion lock; through the actions of the revolving member and the driving element, the drawing wire traction mechanism can swing when the revolving member is at a certain angle, so that the unlocking mechanism can be opened when the moving element is at a special location.

Description

Release limiting mechanism

Technical field

The present invention relates to a kind of limiting mechanism, relate in particular to a kind of release limiting mechanism that the operable state of release mechanism is limited.

Background technology

In some devices, the movement parts that is provided with a connecting element and can slides with respect to connecting element, in order to reach special needs, may require this connecting element to overturn with respect to a fixed reference, meanwhile, on this device, be provided with release mechanism, time can lock it in fixed reference without upset at connecting element, in the time that connecting element overturns, this release mechanism can unlock, and connecting element is rotated freely.In actual applications, due to space constraint, in the time that the relative connecting element of movement parts slides into some ad-hoc locations, upset connecting element will make movement parts and miscellaneous part interfere, therefore, need to be in movement parts when without interference position, just can make release mechanism produce action, connecting element is discharged, can freely overturn.

Summary of the invention

For solving the deficiencies in the prior art, the invention provides a kind of release limiting mechanism, it only just can be opened release mechanism during in ad-hoc location in movement parts, avoided the interference of movement parts in switching process.

For achieving the above object, release limiting mechanism of the present invention, be arranged on the device with release mechanism, this device has a connecting element in the fixed reference of being locked in, the movement parts that can slide with respect to connecting element, the lock-out state of connecting element and fixed reference is drawn and carried out release so that the release mechanism that the relative fixed reference of connecting element is overturn by bracing wire, and it comprises:

One tumbler has the rotation of respective angles under the driving of actuator with respect to the variation of connecting element sliding distance with movement parts;

One bracing wire trailer coupling, swing and arrange with respect to fixed reference, it is coordinated and is connected with tumbler by limit rotation mechanism, described limit rotation mechanism limits the swing of bracing wire trailer coupling with respect to fixed reference in the time that tumbler rotates, there is the rotation of certain angle and can not rotate time, described bracing wire trailer coupling carries out the swing of release by its operation being had to the coupled bracing wire of traction at tumbler.

As limitation of the invention, described movement parts is the tooth bar being connected in movement parts, and described tumbler is to rotate to be arranged on the fluted disc being meshed on connecting element, with tooth bar.

As limitation of the invention further, described bracing wire trailer coupling is to swing the solution lock support being arranged on connecting element, on the end face of fluted disc, be provided with a sliding pin, described limit rotation mechanism comprise be arranged on separate on lock support and be interconnected and can insert for sliding pin, with the first arc groove and second arc groove of sliding pin bearing fit, wherein, the groove center radius of the first arc groove equates with the distribution radius of sliding pin, and the center of circle of the second arc groove overlaps with the center of turn of separating lock support.

As limitation of the invention further, described solution lock support comprises a disk, and described the first arc groove and the second arc groove are positioned on this disk.

As to another kind of restriction of the present invention, on connecting element, be provided with the retracing spring that is connected, makes bracing wire trailer coupling to reset with bracing wire trailer coupling.

As to another kind of restriction of the present invention, be provided with the drawstring that can be held at bracing wire trailer coupling.

Limit as volume to a kind of application form of the present invention, connecting element be one end by cushion lock be locked on vehicle floor, the other end and the hinged slide rail of vehicle floor; Described movement parts is the cushion skeleton that can slide along slide rail; Described release mechanism is the locking between slide rail and vehicle floor to be drawn to the tripper that carries out release by bracing wire.

Adopt technique scheme, its beneficial effect is: by the action of tumbler and actuator, bracing wire trailer coupling just can swing during in certain angle at tumbler, thereby release mechanism only just can be opened during in ad-hoc location in movement parts; Movement parts and tumbler adopt respectively tooth bar and fluted disc, and reliable in structure compactness, occupies little space; Sliding pin in the first arc groove time, is separated lock support and is fixed, and release mechanism cannot release, and in sliding pin slips into the second arc groove time, release mechanism can be unlocked, thereby the reliable in action of limit rotation mechanism; Retracing spring is set and can makes to separate lock support self-return; Drawstring is set can convenient operation person holding operation; At solution lock support, disk is set and is easy to manufacture, can save material.

Brief description of the drawings

Below in conjunction with the drawings and the specific embodiments, the present invention is done further to describe in detail:

Fig. 1 is the structural representation of the embodiment of the present invention one;

Fig. 2 is the structural representation of fluted disc 21 in the embodiment of the present invention one;

Fig. 3 is the present embodiment two schematic diagrams.

In figure: 1-cushion skeleton, 15-tooth bar, 156-links handle, 2-slide rail, 20-spring coupling plate, 21-fluted disc, 215-center shaft, 22-sliding pin, 23-separates lock support, 231-rack shaft, 232-wire passing device, 24-disk, 25-the first arc groove, 26-the second arc groove, 27-drawstring, 28-retracing spring, 29-articulated mounting, 3-cushion lock, 31-bracing wire.

Detailed description of the invention

embodiment mono-

As shown in Figures 1 and 2, the release limiting mechanism of the embodiment of the present invention, be arranged on the device with release mechanism, this device has a connecting element in the fixed reference of being locked in, the movement parts that can slide with respect to connecting element, the lock-out state of connecting element and fixed reference is drawn and carried out release so that the release mechanism that the relative fixed reference of connecting element is overturn by bracing wire, and this release limiting mechanism comprises:

One bracing wire trailer coupling, swings and arranges with respect to fixed reference, and it is coordinated and be connected with tumbler by limit rotation mechanism, and described limit rotation mechanism limits the swing of bracing wire trailer coupling with respect to fixed reference in the time that tumbler rotates; There is the rotation of certain angle and can not rotate time, described bracing wire trailer coupling carries out the swing of release by its operation being had to the coupled bracing wire of traction at tumbler.

Wherein, tumbler used is to rotate the fluted disc 21 being arranged on connecting element, and actuator used is to be fixed on the tooth bar 15 in movement parts by connection handle 156, and tooth bar 15 is meshed with fluted disc 21.In the time that movement parts is slided with respect to connecting element, tooth bar 15 is with active toothed disk 21 to rotate.On fluted disc 21, be provided with a sliding pin 22, the distance between both axis of sliding pin 22 and center shaft 215 is the distribution radius of this sliding pin 22.

Bracing wire trailer coupling is for separating lock support 23, and one end of this solution lock support 23 is provided with the rack shaft 231 for being rotationally connected with connecting element, and the other end is provided with drawstring 27 and grips for users.Separate the wire passing device 232 that lock support 23 is connected with the bracing wire of release mechanism, in the time that it swings around rack shaft 231, can twitch bracing wire, thereby open release mechanism.Between rack shaft 231 and drawstring 27, be provided with a disk 24, limit rotation mechanism is arranged on this disk 24.

Limit rotation mechanism comprises and connects the upper and lower end face of this disk 24 and the first arc groove 25 being interconnected and the second arc groove 26, wherein, the groove center radius of the first arc groove 25 equates with the distribution radius of sliding pin 22, the groove center radius of indication is the aviation value of the radius of the inside and outside curved wall of the first arc groove 25 herein, and the center of circle of the second arc groove 26 overlaps with separating the center of turn of lock support 23, i.e. the dead in line of itself and rack shaft 231.These two arc grooves can insert for sliding pin 22, form bearing fit with sliding pin 22.

Separate on lock support 23 and be also provided with retracing spring 28, retracing spring 28 is connected with the spring coupling plate 20 on connecting element, makes to separate lock support 23 returns.

In use, in the time that sliding pin 22 is positioned at the first arc groove 25, fluted disc 21 can rotate under tooth bar 25 drives, the first arc groove 25 can limit the swing of separating lock support 23, and in the time that fluted disc 21 turns to move angle, sliding pin 22 arrives the intersection of the first arc groove 25 and the second arc groove 26, now fluted disc 21 can not rotate, can be pulled and swing and separate lock support 23, pull coupled bracing wire, by unlocking structure release.

Embodiment bis-

As described in Figure 3, release limiting mechanism in the present embodiment is that the structure of embodiment mono-is for the back seat of vehicle, described connecting element is the slide rail 2 of seat bottom, this slide rail 2 is hinged on the floor as fixed reference by articulated mounting 29, the rear portion of slide rail 2 be provided with a cushion lock 3 for floor on snap close lock mutually, thereby slide rail 2 is fixed on floor, and fluted disc 21 rotates and is arranged on this slide rail 2.Described movable part is the cushion skeleton 1 being slidably arranged on slide rail 2, and tooth bar 15 is connected in this cushion skeleton 1.The bracing wire 31 that cushion lock 3 arranges is connected with solution lock support 23.

In use, slip cushion skeleton 1, with the rotation of active toothed disk 21, now separate lock support 23 locked, in the time sliding pin 22 being slid into the intersection of the first arc groove 25 and the second arc groove 26, now to open and separate lock support 23, bracing wire 31 is twitched, the cushion lock 3 of slide rail 2 belows is opened, thereby slide rail 2 can be overturn along articulated mounting 29.

Claims

1. a release limiting mechanism, be arranged on the device with release mechanism, this device has the connecting element in the fixed reference of being locked in, the movement parts that can slide with respect to connecting element, connecting element is drawn and carried out release so that the release mechanism of the relative fixed reference upset of connecting element is characterized in that comprising by bracing wire with the lock-out state of fixed reference:

2. release limiting mechanism according to claim 1, is characterized in that: described actuator is the tooth bar (15) being connected in movement parts, and described tumbler is arranged on for rotating the fluted disc (21) being meshed on connecting element, with tooth bar (15).

3. release limiting mechanism according to claim 2, it is characterized in that: described bracing wire trailer coupling is to swing the solution lock support (23) being arranged on connecting element, on the end face of fluted disc (21), be provided with a sliding pin (22), described limit rotation mechanism comprises being arranged on and separates lock support (23) and go up and be interconnected and can supply sliding pin (22) insertion, the first arc groove (25) and the second arc groove (26) with sliding pin (22) bearing fit, wherein, the groove center radius of the first arc groove (25) equates with the distribution radius of sliding pin (22), the center of circle of the second arc groove (26) overlaps with the center of turn of separating lock support (23).

4. release limiting mechanism according to claim 3, is characterized in that: described solution lock support (23) comprises a disk (24), and described the first arc groove (25) and the second arc groove (26) are positioned on this disk (24).

5. according to the release limiting mechanism described in any one in claim 1 to 4, it is characterized in that: on connecting element, be provided with the retracing spring (28) that is connected, makes bracing wire trailer coupling to reset with bracing wire trailer coupling.

6. according to the release limiting mechanism described in any one in claim 1 to 4, it is characterized in that: be provided with the drawstring (27) that can be held at bracing wire trailer coupling.

7. release limiting mechanism according to claim 1, is characterized in that: described connecting element is that one end passes through that cushion lock (3) is locked on vehicle floor, the other end and the hinged slide rail (2) of vehicle floor; Described movement parts is the cushion skeleton (1) that can slide along slide rail (2); Described release mechanism is for to draw to the locking between slide rail (2) and vehicle floor the tripper that carries out release by bracing wire.