JP7054267B2 - Automobile door lock electric unlocking mechanism with composite structure - Google Patents

Description

The present invention relates to the field of automobile engineering, particularly to an automobile door lock electric unlocking mechanism having a flexible and composite structure having various degrees of freedom, and has a single motor drive double motion chain structure and a rotary member to which a return torsion spring is attached. -A composite member based on a combination of moving members constitutes a link mechanism having a multi-motion mode and a return feature, which allows the door lock transmission mechanism to repeatedly switch and return between multiple operation modes. .. Specifically, one electric unlocking chain is added inside the door lock equipped with only an electric bolt chain (having a bolt function), and the two chains cooperate according to the transmission rhythm by a single motor. And realize the electric unlocking of the door lock.

With the development of smart technology, the pursuit of smarter automobiles is increasing, and the development of smart door locks that can realize electric unlocking is part of this. Currently, while many vehicles outside China have an electric unlocking function for car door locks, most cars in China cannot smart unlock door lock products, and the bolts are still electrically unlocked and doors. The lock is manually unlocked, and the development of an electric unlocking function for automobile door locks is imminent.

Regarding the development of the automobile door lock bolt system, the Chinese patent CN 103541611 discloses a door lock having a mechanical bolt function, in which the central control worm wheel rotates and the central control transition lever is bolted to the bolt station or. Driven to move and switch between bolt release stations, the Chinese patent CN 204552360 discloses a new car door lock actuator mechanism that changes the transmission method of the actuator and bolts / unlocks the car door lock. Chinese patent CN 201666054 discloses a car door lock, which includes a lock body and a bolt module, a lock body control module and a bolt control module, and can be electrically or manually bolted. It can be hooked or released, and by adding a bolt signal device, pulling the inner handle lever or the outer handle lever realizes bolt release. Regarding the development of electric unlocking of automobile door locks, Chinese patent CN 104895424 discloses a side door lock transmission mechanism that can realize electric unlocking, and as a principle, an electric unlocking system is installed inside the door lock body. , The cam link mechanism realizes the electric unlock control of the door lock.

As described above, the conventional new electric unlock door lock transmission system currently includes a single motor drive unlock chain (single drive single motion chain), a double motor drive bolt and an unlock double motion chain (double drive double motion chain). It is roughly divided into two types. The door lock system of the single drive single movement chain has only the unlock chain, there is no bolt chain or bolt function, it is possible to realize the electric unlock of the door lock, and while reducing the design dimensions, the door lock system The safety and stability of the lock is reduced, and the door lock system of the double drive double motion chain uses a double motor to drive the bolt chain and unlock chain, respectively, and while the function is complete and the performance is stable, the entire door lock The size of the door lock is large, which increases the manufacturing cost of the door lock.

The present invention proposes an electric unlocking door lock of a single motor drive double chain for the above defect, that is, a door lock transmission mechanism of a single motor drive double chain based on a composite member . The development idea of the electric unlocking function is to construct a new type of car door lock that can be electrically unlocked with a bolt function by adding an electric unlocking function to an automobile door lock that has an electric unlocking function and a manual unlocking function. It is to be.

The technical problem to be solved by the present invention is to propose an automobile door lock electric unlocking mechanism having a composite structure , and by applying it to the unlocking process of the automobile electric door lock, the automobile door lock is a single motor. It is possible to realize multiple types of operation modes such as electric release of bolts, unlocking, and bolting.

An automobile door lock electric unlocking mechanism having a composite structure , equipped with a composite member based on a combination of a rotating member and a moving member to which a return torsion spring is attached, and has various degrees of freedom and flexibility having a multi-motion mode and a return feature. A link mechanism is configured, and a door lock unlocking chain and a timing combination in which the chain and the bolt chain cooperate with each other are configured. The door lock mechanism is equipped with a drive motor, the output shaft of the drive motor is connected to the worm, the worm is connected to the triple gear, the triple gear is equipped with three gears of upper, middle and lower stages, and the intermediate gear meshes with the worm. It is a worm wheel that has two upper and lower cylindrical spur gears connected to both ends of the intermediate gear, the upper gear transmits the worm gear movement to the door lock unlocking chain, and the lower gear transfers the worm gear movement to the bolt chain. Communicate and
The door lock unlocking chain includes a force amplification mechanism and a link mechanism including a composite member , the force amplification mechanism includes a gear transmission system having a force amplification effect, and the link mechanism including the composite member is a first link member. A horizontal pull link and a composite member based on a combination of a rotating member and a moving member to which a return torsion spring is attached are provided, the first link member is connected to the horizontal pull link by the composite member , and the other end of the horizontal pull link is opened. It is connected to the lock rotating disk, and by pulling the unlocking rotating disk, the door lock is unlocked in conjunction with the claw ratchet structure.
The bolt chain includes a lower gear and a bolt gear that meshes with the lower gear, and the bolt gear interlocks with the bolt rotating disk to propel the bolt push rod, and one end of the bolt push rod is inside the opening groove of the unlocking rotating disk. Slide with, and connect or not connect the unlocking rotary disk to the claw ratchet structure via the flange at one end of the bolt push rod.
A motion timing control member is further provided, and when the automobile opens the door by the motion timing control member, the lower gear first interlocks with the bolt chain to release the bolt, and after a predetermined time, the door lock unlocking chain is unlocked. However, when the automobile closes the door, after locking, the bolt is electrically locked, and the motion timing control member returns to the initial position.

Further, the motion timing control member includes a double gear that meshes with the upper gear, the lower gear of the double gear meshes with the upper gear , the upper gear of the double gear is an incomplete gear, and intermittently meshes with the idler. When the first link member is a gear control rod and meshes with the idler and the incomplete gear does not mesh with the idler, the bolt chain moves, the door lock unlocking chain does not move, and the bolt is released. When the incomplete gear meshes with the idler, the door lock unlock chain begins to move, unlocks the door lock, and returns the unlock chain.

Further, the motion timing control member is a first link member, and includes a disk cam that rotates coaxially with the idler and a swing push rod that contacts the disk cam in the form of a force closure. Is connected to the lateral pulling link via a torsion spring, and when the disc cam comes into contact with the swing push rod at the near stop, the bolt chain moves, and when the disk cam rotates to the far stop, the swing push rod. Interlocks the horizontal pull link to realize the electric unlocking of the door lock.

Further, the link mechanism including the composite member is provided with a torsion spring, one arm of the torsion spring is mounted in the straight groove of the first link member, and the new composite member of the first link member adopts a counterbore structure. However, a part of the torsion spring body is fixed and attached in the ring groove, the other arm of the torsion spring is attached in the straight groove of the horizontal pull link, and the horizontal pull link also adopts a counterbore structure and twists. The rest of the spring body is fitted into the horizontal pull link, and the arm of the torsion spring mounted in the straight groove of the horizontal pull link is movable in the straight groove along with the center of the torsion spring.

The counterbore structure of the horizontal pull link employs a track type chute, and the torsion spring is slid in the chute.

The track-type chute of the horizontal pulling link employs a drum-shaped chute in which the middle portion protrudes slightly outward or a constricted chute in which the middle portion slightly contracts inward.

Further, the triple gear is mounted coaxially with the idler but does not rotate coaxially.

Further, the bolt gear is mounted coaxially with the double gear.

Further, in the composite member , the torsion spring has a specific initial torsion angle, and at the time of attachment, the arm is curved and attached in the non-operating force receiving direction side.

Further, in the door lock unlocking chain, the force amplification mechanism decelerates the two-stage gear by a triple gear, a double gear and an idler, the upper gear of the double gear is an incomplete gear, and the length of the toothless stroke of the incomplete gear is It is decided according to the intermittent time of the two chains.

Further, the gear connecting rod is provided as a lever type gear connecting rod member having a force amplification effect, the right side of the gear connecting rod is a connecting rod of a link mechanism including the composite member and having a multi-motion mode and a return feature, and the left side meshes with an idler. It is a partial gear type structure.

Further, in the force amplification mechanism, the idler may be provided as a flexible gear structure having a rigid skeleton.

About beneficial effects
1) The automobile door lock electric unlocking mechanism having the complex structure of the present invention can realize the cooperation between the door lock unlocking chain and the bolt chain, and at the desired timing, the door lock can be electrically unlocked and the door lock can be operated. It is possible to realize an electric lock of the bolt.

2) The design of the mechanism is elaborate, and the car door lock unlocking chain is based on the conventional bolt chain, has a multi-motion mode including a composite member , and has various degrees of freedom with return characteristics, and is a flexible link mechanism. By designing one door lock unlocking chain including, the door lock system retains its original function and does not interfere with the movement of other chains.

3) Repeated unlocking of the door lock can be realized, and the door lock unlocking transmission mechanism completes the electric release, unlocking, bolting, etc. of the door lock bolt at once (completed by energizing the motor once). can do. Each time the incomplete gear rotates to the toothless position or the disc cam reaches the near stop, the link mechanism of the door lock unlock chain returns to the next unlock position by the action of the spring restoring force. The door lock can be electrically unlocked and the bolt can be electrically locked repeatedly.

4) The structure design is rational, and the gear connecting rod member of the automobile door lock unlocking chain transmits the rotation of the gear to the connecting rod of the link mechanism having the multi-motion mode and the return feature, and the gear rotation is transmitted to the connecting rod of the link mechanism. Convert to a fixed axis rotation to reduce the size and design complexity of the part.

5) It has a force amplification effect multiple times, and the door lock mechanism can be adapted to electric unlocking with a large sealing force. The automobile door lock unlocking chain has two force amplification designs, and force amplification is realized by using a two-stage cylindrical gear deceleration transmission and a lever-type structure for the first link member, respectively.

It is a structural schematic diagram of the transmission system of the present invention, and is also a schematic diagram of a state where the door lock system is locked and a bolt (initial position) is applied. FIG. 5 is a schematic perspective view in which the entire mechanism of the first embodiment is attached to the inside of the door lock main body. It is a schematic diagram of the connection relationship of each movement chain in the entire door lock mechanism. be. It is a schematic diagram of the link mechanism which has the multi-motion mode and the return feature of the motion structure of the composite member in this invention. It is a schematic diagram of the door lock which marked the link mechanism in FIG. It is a schematic diagram of the movement in the case of applying the mechanism of this invention to the whole electric door lock, input I-manual outer unlocking input, input II-manual inner unlocking input, input III-manual outside bolt input, input IV- Manual in-vehicle bolt input. FIG. 6 is a schematic cross-sectional view taken along the line AA in FIG. It is a schematic diagram of the state in which the door lock in FIG. 1 has a bolt portion and is bolted after being completely locked. It is a schematic diagram of the state in which the door lock in FIG. 1 has a bolt portion and the bolt is released after being completely locked. It is a structural schematic diagram of the link member which has a composite member . It is an exploded schematic diagram of the link member in FIG. It is a schematic diagram of a horizontal pulling link to which a torsion spring is attached. It is a schematic diagram that the straight groove of a horizontal pulling link is a drum-shaped groove. It is a schematic diagram that the straight groove of a horizontal pulling link is a constricted groove. It is a perspective schematic view which the bolt chain and the door lock unlocking chain face downward. It is a perspective schematic view which the bolt chain and the door lock unlocking chain face upward. It is a connection schematic diagram when a bolt push rod overlaps with a claw. It is a structural schematic diagram of a claw ratchet in the rear view. It is a schematic diagram of the state which keeps unlocking immediately after unlocking a bolt during unlocking. It is a schematic diagram of the unlocking end operation state. It is a schematic diagram of the state in which the flexible link member is not restored immediately after the system is completely locked and immediately after bolting. It is a schematic diagram of the motion in a bolted state of a link mechanism having a composite member . It is a schematic diagram of manual unlocking when a gear connecting rod member sticks due to a motor failure or the like. It is a schematic diagram of the state in which the disk cam in the second embodiment is located at the near stop position, and the door lock unlocking chain has completed the bolt release. FIG. 5 is a schematic view of a state in which the disk cam in the second embodiment is located at a remote stop and the door lock unlocking chain has been unlocked.

Hereinafter, the present invention will be further described with reference to specific examples and drawings.

The present application proposes a single drive double chain transmission mechanism for automobile door locks, specifically, one electric unlocking mechanism is added inside the original door lock having only a single bolt mechanism, and the added opening is performed. By cooperating with the original transmission system of the lock chain, the door lock can realize the electric unlocking function of the door lock and the electric locking function of the bolt only by a single drive.

The single drive double chain transmission mechanism having a composite member comprises a door lock unlocking chain having the composite member, a bolt chain, and a timing combination that cooperates with the bolt chain.
The deceleration mechanism of the door lock unlocking chain is a worm transmission deceleration mechanism, and cylindrical spur gears are coaxially provided on both end surfaces of the worm wheel of the deceleration mechanism to be triple gears, and the shaft to which the triple gears are attached is a mandrel. The triple gear has three parts from top to bottom, the intermediate gear is a worm wheel 14 that meshes with the worm, and two cylindrical spur gears, an upper gear and a lower gear, are connected to both end faces of the intermediate gear, respectively. The upper gear transmits the worm gear movement to the door lock unlocking chain, and the lower gear transmits the worm gear movement to the bolt chain.

The door lock unlocking chain includes a force amplification mechanism and a link mechanism having a composite member . The force amplification mechanism of the door lock unlocking chain is a two-stage cylindrical gear reduction mechanism, the two-stage gear mechanism is arranged on two shafts, and the mandrel to which the triple gear is attached has a cylindrical spur gear that rotates asynchronously, that is, the idler 10. It is attached.

The link mechanism having the composite member is composed of a composite member based on a combination of a rotating member and a moving member to which a return torsion spring is attached, and has a multi-motion mode and a return feature, whereby the door lock transmission mechanism is multi-purpose. Switching and returning can be repeated between operation modes.

A first link member and a horizontal pull link 8 are provided, and the first link member is connected to the horizontal pull link 8 via a composite member having a force restoring torsion spring 17, and the other end of the horizontal pull link 8 is an unlocking rotary disk. It is connected to 7 and pulls the unlocking rotary disk 7 to interlock with the claw ratchet structure to unlock the door lock.

The bolt chain includes a lower gear and a bolt gear 11 that meshes with the lower gear. The bolt gear 11 interlocks with a bolt rotating disk 13 to propel the bolt push rod 6, and one end of the bolt push rod 6 is unlocked. Slide in the opening groove of the plate 7, and whether or not the flange at one end of the bolt push rod 6 contacts the claw ratchet structure determines the connected or disconnected state between the unlocking rotary disk 7 and the claw, and the connected state is the bolt. On the other hand, the disconnected state is the bolted state.

The timing design adopts a motion timing control member, and when the automobile opens the door by the motion timing control member, the lower gear first interlocks with the bolt chain to release the bolt, and after a predetermined time, the door lock unlock chain. When the door is unlocked and the car closes the door, after locking, bolts are applied and the motion timing control member returns to the initial position.

The following two specific implementation structures are provided as a reference according to the above design.

Example 1

The motion timing control member employs a double gear 4 that meshes with the upper gear, the lower gear of the double gear 4 meshes with the upper gear of the triple gear, the upper gear of the double gear 4 is an incomplete gear 16, and is intermittent with the idler 10. When the first link member is the gear control rod 5, meshes with the idler 10, and the incomplete gear 16 does not mesh with the idler 10, the bolt chain moves and the door lock unlocking chain moves. Achieve bolt release without doing. When the incomplete gear meshes with the idler, the door lock unlock chain moves to unlock the door lock. The purpose of the incomplete gear structure is to make the bolt release time earlier than the unlocking time, and the unlocking starts intermittently for a predetermined time, and the intermittent time is determined according to the stroke of the toothless portion. At the same time, the incomplete gear 1 is a drive gear, and each time it rotates to a toothless position, the elastic potential accumulated in the related spring in the system is released, and the link member returns to the initial position. By adopting the double gear, the occupied volume of the portion is reduced and the deceleration urging action is provided.

As shown in FIG. 4, it is a link mechanism based on the composite member according to the present invention, and when the center of the torsion spring is located at both ends of the chute, the moving member is a rotating member and the center of the torsion spring is in the middle of the chute. When located in the portion, the moving member is a two-degree-of-freedom composite member formed by combining a moving member and a rotating member . The influence of the force of the torsion spring imparts the determined compliant return function to the moving member .

As shown in FIG. 1, an automobile door lock system includes a door lock unlocking chain and a bolt chain. The door lock unlocking chain shares the bolt chain, the motor 1, and the worm gear reduction mechanism. The door lock unlocking chain further includes a two-stage force amplification gear mechanism and a link mechanism having a composite member . The link mechanism is a link mechanism having a multi-motion mode and a return feature, which is composed of a composite member structure based on a combination of a rotating member and a moving member to which a return torsion spring is attached. 17 and a horizontal pulling link 8 are provided. In addition to the shared mechanism, the bolt chain fits into a one-stage gear reduction mechanism (the cylindrical spur gear at the lower end of the worm consists of a lower gear and a bolt gear 11), a bolt fork 12 mounted coaxially with the bolt gear 11, and a bolt fork 12. It includes a matching bolt rotating disk 13, and a bolt push rod 6 having one end provided in the bolt rotating disk 13 and the other end provided in the opening groove of the unlocking rotating disk 7.

The bolt push rod 6 and the unlocking rotary disk 7 are profile-connected, the opening groove is a through groove, the end of the bolt push rod 6 is located in the opening groove of the unlocking rotary disk 7, and the bolt push rod 6 is used. When the end of is located at the inner end of the unlocking rotary disk 7, the flange at the end of the bolt push rod 6 located in the unlocking rotary disk through groove and the claw 20 located on the other side of the unlocking rotary disk 20 The upper flange overlaps through the end of the bolt push rod, in this case unbolts, and when the end of the bolt push rod is located at the outer end of the unlocking rotating disk, of the unlocking rotating disk The upper flange cannot be overlapped with the upper flange of the claw 20, and at this time, the claw ratchet structure cannot be propelled even if the unlocking rotary disk is rotated, thereby completing the bolting operation.

The structure of the bolt chain and the state of the bolts are shown in FIGS. 8 and 9, and FIG. 8 shows the bolted state. When the door lock system releases the bolts, the motor 1 rotates forward and the worm 15 is interlocked. The movement is transmitted to the worm wheel 14. The lower gear of the worm wheel 14 decelerates by one step and transmits the motion to the bolt fork 12 on the upper side of the bolt gear 11, the bolt fork 12 is rotated clockwise, the bolt rotating disk 13 is rotated on a fixed axis, and the bolt push rod is used. 6 is propelled, the bolt push rod 6 slides into the opening groove of the unlocking rotary disk 7 to the inner end of the rotary disk 7, and the bolt release schematic is shown in FIG.

When the door lock system bolts, the motor 1 reverses and interlocks the worm 15 to transmit the motion to the worm wheel 14. The lower gear of the worm wheel 14 decelerates by one step to transmit the motion to the bolt fork 12 on the upper side of the bolt gear 11, the bolt fork 12 is rotated counterclockwise, and the bolt rotating disk 13 is moved to move the bolt push rod 6. Propulsion, the bolt push rod 6 slides into the opening groove of the unlocking rotary disk 7 to the outer end of the rotary disk 7.

The door lock unlocking chain includes a two-stage force amplification gear mechanism and a link mechanism having a composite member . FIG. 4 is a schematic structural diagram of a link member having a composite member , and includes a gear connecting rod 5, a torsion spring 17, and a lateral pulling link 8. One end of the gear control rod 5 has a partial gear structure and rotates around a fixed shaft, and the link portion at the other end is a gear control rod of a link mechanism having a multi-motion mode and a return feature, and the force is amplified by the gear group. The rotational movement is amplified again by the lever type gear control rod and converted into the fixed shaft rotation of the link mechanism control rod. The composite member of the gear control rod 5 adopts a counterbore type structural design, and the torsion spring 17 is partially inserted in the ring groove. The arm at one end of the torsion spring is fixedly attached in the straight groove of the gear control rod 5, and the arm at the other movable end of the torsion spring is attached in the straight groove of the lateral pulling link 8. Is slidable in a straight groove along with the hinge shaft, and the cylindrical portion of the body of the torsion spring is fitted between the lateral pull link 8 and the gear control rod 5 to reduce the coupling spacing between these members. The torsion spring is attached to the lateral pull link and gear control rod hinge shaft, and it is possible to set the initial angle.

The link mechanism including the composite member amplifies the motion output by the motor to the unlocking chain by the lever structural gear connecting rod 5 and transmits it to the unlocking rotary disk 7 and the claw 20. The arc length of the reference pitch circle of some teeth of the gear connecting rod 5 is twice the arc length required for unlocking by the gear.

During the unlocking of the door lock system, the motor 1 must first unlock the bolts, and then continue to unlock. The bolt release start time is slightly earlier than the unlocking time in order to save the unlocking time and perform two tasks with one drive. When the bolt push rod 6 reaches the inner end of the unlocking rotary disk 7, the bolt release is completed, and at this time, the bolt push rod 6 is also in the position just before the unlocking by the claw is driven. After the bolt push rod 6 is located at the inner end of the unlocking rotary disk 7, the motor 1 continues to rotate, the horizontal pull link 8 rotationally drives the unlocking rotary disk 7, and the rotary disk rotates on a fixed axis. At the same time, the bolt push rod 6 is driven by motion, the bolt push rod rotates the claw 20, the claw 20 is separated from the ratchet 19, the ratchet 19 is released, the ratchet 19 is rotated, and the door lock is unlocked. At this time, the incomplete gear rotates just to the toothless position, the return torsion spring is attached to the rotary mandrel of the unlocking rotary disk, and the unlocking rotary disk 7 is the return torsion spring attached to the mandrel (shown in the figure). The link mechanism of the electric unlocking chain is returned to the initial position under the action of the restoring force.

After locking the door lock, the motor 1 reverses, transmits the motion to the bolt push rod 6, and moves the bolt push rod to the bolting position. Since the motor is shared, the motion is also transmitted to the door lock unlocking chain, and the chain motion direction is exactly opposite to that at the time of unlocking, but the reverse motion of the unlocking rotary disk 7 is impossible (1). Since there is only directional rotation), it is thought that the energy transmitted to the door lock unlocking chain is consumed, and the movement is decomposed by the link mechanism having a composite member in order to bolt the automobile door lock. Since the gear connecting rod 5 rotates the torsion spring in the opposite direction and the chute is present in the flexible link member, the hinge shaft of the gear connecting rod 5 interlocks with the torsion spring to cross the dead point position of the link member and push the door bolt. At this time, when the incomplete gear rotates just to the toothless position and the torsion spring releases the elastic potential, the gear connecting rod 5 goes further in the opposite direction beyond the dead point position of the mechanism and returns to the initial position of the door lock system. ..

At the time of unlocking, the gear control rod 5 mechanism rotates clockwise until the lock is unlocked, and then the mechanism is affected by the restoring force of the return torsion spring (not shown) attached to the mandrel of the unlocking rotary disk 7. Instantly returns to the initial position. After locking the door, the door lock system will continue to bolt, the gear connecting rod 5 will rotate counterclockwise until the door lock is fully bolted, the incomplete gear will rotate in a toothless stroke, and the gear connecting rod 5 will be a torsion spring. It receives the reverse elastic force of 17 and returns to the initial position.

The claws having the claw ratchet structure are rotatably attached to the claw mandrel 18, one end is connected to the spring 21, the other end is profile-engaged with the ratchet 19, and the ratchet 19 is rotatably fixed to the ratchet mandrel 9. It is attached.

The gear connecting rod 5, which is the first link member, is rotatably attached to the ratchet mandrel 9. The link mechanism of the unlocking chain may be provided with a pore structure in order to reduce the weight.

The motor shaft is coaxial with the worm shaft, and the triple gear is mounted coaxially with the idler 10, but does not rotate coaxially. The bolt gear 11, the bolt fork 12, and the double gear 4 are coaxially attached. The bolt rotating disk 13 rotates on a fixed shaft, the bolt push rod 6 adopts a linear push rod, one end is housed in the opening groove of the unlocking rotating disk 7, and the other end is inside the chute of the bolt rotating disk 13. Attached to and flexibly connected by a torsion spring.

The counterbore structure of the horizontal pull link 8 employs a track type chute and is used for the restricted movement of the torsion spring, and the horizontal pull link may adopt a perforated structure for weight reduction.

The track-type chute of the horizontal pulling link employs a drum-shaped chute in which the middle portion protrudes slightly outward or a constricted chute in which the middle portion slightly contracts inward.

The torsion spring 17 is slidable in the straight groove of the lateral pull link 8 and has passed the dead center position of the flat link mechanism of the door lock unlocking chain when the gear connecting rod 5 and the lateral pull link 8 move in the chute. After that, it returns to the initial position by the elastic force of the torsion spring 17.

7 and 8 show two variants of the straight groove structure of the horizontal pull link 8 of the door lock unlocking chain. FIG. 7 shows a drum-shaped chute, and this chute structure contributes to the rapid release of the force of the torsion spring. FIG. 8 shows a constricted chute, and such a chute structure contributes to holding the force of the torsion spring and the like.

As a further improvement of the present invention, the redundant length of the straight groove of the horizontal pull link 8 of the door lock unlocking chain transmission system may be set, and by designing in this way, the safety of the door lock in the event of a failure can be improved. In the case of improvement, that is, in the case of motor failure, motor operation failure, etc., even if the gear control rod sticks, manual unlocking is possible, neither electric unlocking nor manual unlocking works, and the door lock sticks thoroughly. Avoid the phenomenon of getting stuck. By lengthening the straight groove of the lateral pull link 8, the motor fails and becomes stopped, causing the transmission system to lock the door lock by precise meshing of the gear transmission, that is, the incomplete gear 16 reaches the toothless stroke. If not, the unlocking rotary disk 7 is manually rotated to move the lateral pulling link 8, and finally the door lock is unlocked.

As a further improvement of the present invention, the idler 10 in the unlocking chain may be provided as a flexible gear structure having a rigid skeleton structure. The flexible material has functions of shock interference and vibration absorption to some extent, and overload protection of the member of the door lock unlocking chain can be realized by appropriately deforming the gear.

Example 2

The first link member is adopted as the motion timing control member, and the door lock unlocking chain transmission system of the first embodiment is changed from the original gear link series combination mechanism to the gear swing cam-link series combination mechanism, and is originally at the end of the chain. The gear mechanism that provides swinging motion to the rocker of the link mechanism is changed to a force closure type swinging cam mechanism. A disc cam 23 that rotates coaxially with the idler 10 and a swing push rod 22 that contacts the disc cam 23 in the form of a force closure are provided, and the swing push rod 22 has a lateral pull link 8 via a torsion spring. When the disc cam 23 comes into contact with the swing push rod 22 at the near stop, the bolt chain moves, and when the disc cam 23 rotates to the far stop, the swing push rod 22 is pulled sideways. When the link 8 is interlocked to complete the electric unlocking of the door lock and the cam comes into contact with the rocker at the near stop, it is the initial operating position of the door lock system, that is, it returns and the next door lock is opened. Prepare for the lock.

At the near stop, the door lock unlocking chain with rotating cams does not transmit motion to the claw 20 at the end of the chain, which is the same function as the incomplete gear of the chain system. When the motor rotates and transmits the motion to the unlocking chain, the disk cam rotates to the far-stop point, completes the unlocking of the door lock, the disk cam continues to rotate for one cycle, and the next unlocking position. Return to.

Compared to the above transmission mechanism, in the embodiment of the present embodiment, the upper gear of the double gear 4 is an all-tooth gear, the disk cam 23 is fixedly connected to the upper surface of the idler 10, and the rotation speed of the disk cam 23 is the idler. It is the same as 10.

FIG. 24 is a schematic view of the state where the disk cam is located at the near stop and the door lock unlocking chain is completed to be unbolted, and FIG. 25 is the state where the disk cam is located at the far stop and the door lock unlock chain is. It is a schematic diagram of the state where the unlocking is completed.

As described above, by adding the door lock unlocking chain, the door lock system can maintain the original function of the door lock and realize electric unlocking. The unlocking chain transmission mechanism of the present invention can realize single drive electric unlocking. The composite member constitutes a link mechanism having a multi-motion mode and a return feature, and the door lock transmission mechanism can repeatedly switch and return between the multi-motion modes. Incomplete gear transmission allows the two chains of the door lock system to operate in a predetermined order and, in cooperation with the link mechanism, restores between the multi-operation modes of some mechanisms of the unlocking chain. Realize. The electric unlocking of the door lock is reproducible, ensuring that the entire system returns to its initial position each time the unlocking or electric locking of the bolt is completed. The link mechanism of the door lock unlock chain has a motion recovery action when the bolt is electrically locked through the composite member , and the length of the chute ensures the fault tolerance of the door lock unlock chain and damages the structure. To avoid.

As described above, the design concept and the technical proposal of the present invention have been described in detail with reference to the examples. Those skilled in the art can make various modifications or modifications to the above embodiments, and all of these modifications or modifications belong to the scope of protection of the present invention patent without departing from the spirit of the present invention patent.

1-motor, 2-worm wheel mandrel, 3-bolt mandrel, 4-double gear, 5-gear control rod, 6-bolt push rod, 7-unlocking rotary disk, 8-horizontal pull link, 9-ratchet mandrel, 10 -Idler, 11-bolt gear, 12-bolt fork, 13-bolt rotating disk, 14-worm wheel, 15-worm, 16-incomplete gear, 17-twist spring, 18-claw mandrel, 19-ratchet, 20- Claws, 21-springs, 22-swing push rods, 23-disc cams, 24- composite members .

Claims (12)

A flexible and composite structure for automobile doors with various degrees of freedom. It is a flexible unlocking mechanism that is equipped with a composite member based on a combination of a rotating member and a moving member to which a torsion spring is attached, and has a multi-motion mode and a return feature. A link mechanism is configured, and a door lock unlocking chain and a timing combination in which the chain and the bolt chain cooperate are configured.
The automobile door lock electric unlocking mechanism is equipped with a drive motor, the output shaft of the drive motor is connected to a worm (15), the worm is connected to a triple gear, and the triple gear is equipped with three gears of upper, middle and lower stages. The intermediate gear is a worm wheel (14) that meshes with the worm (15), and two cylindrical spur gears , an upper gear and a lower gear, are connected to both end faces of the intermediate gear, and the upper gear locks the worm gear movement. It is transmitted to the unlocking chain, and the lower gear transmits the worm gear movement to the bolt chain.
The door lock unlocking chain includes a force amplification mechanism and a link mechanism including a composite member , the force amplification mechanism includes an idler (10), and the link mechanism including the composite member includes a first link member and a lateral pull link. (8) is provided, a torsion spring, a rotating shaft and a composite member (24) are formed, and a first link member is connected to the horizontal pull link (8) via the composite member , and the other end of the horizontal pull link (8). Is connected to the unlocking rotary disk, and by pulling the unlocking rotary disk (7), the claw ratchet structure is interlocked to unlock the door lock.
The bolt chain includes a lower gear and a bolt gear (11) that meshes with the lower gear, and the bolt gear interlocks with the bolt rotating disk (13) to propel the bolt push rod (6), and the bolt push rod (6) has a bolt chain. One end is slid in the opening groove of the unlocking rotary disk (7), and the unlocking rotary disk (7) is connected to or not connected to the claw ratchet structure via the flange at one end of the bolt push rod.
A motion timing control member is further provided, and when the automobile opens the door by the motion timing control member, the lower gear first interlocks with the bolt chain to release the bolt, and after a predetermined time, the door lock unlocking chain is unlocked. However, when the automobile closes the door, the automobile door lock electric unlocking mechanism having a composite structure is characterized in that the bolt is electrically locked after locking and the motion timing control member returns to the initial position. The motion timing control member includes a double gear that meshes with the upper gear, the lower gear of the double gear meshes with the upper gear , the upper gear of the double gear is an incomplete gear, and intermittently meshes with the idler. When the link member is a gear control rod and meshes with the idler and the incomplete gear does not mesh with the idler, the bolt chain moves, the door lock unlocking chain does not move, the bolt is released, and it is incomplete. The automobile door lock electric unlocking mechanism having a composite structure according to claim 1, wherein when the gear meshes with the idler, the door lock unlocking chain starts to move and unlocks the door lock. The motion timing control member is a first link member, includes a disc cam that rotates coaxially with the idler, and a swing push rod that contacts the disc cam in the form of a force closure, and the swing push rod twists. Connected to the lateral pull link via a spring, when the disc cam (23) comes into contact with the swing push rod at the near stop, the bolt chain moves, and when the disc cam rotates to the far stop, the swing push. The automobile door lock electric unlocking mechanism having the composite structure according to claim 1, wherein the rods interlock with the horizontal pulling link to realize the electric unlocking of the door lock. The link mechanism including the composite member is provided with a torsion spring, one arm of the torsion spring is mounted in the straight groove of the first link member, and the new composite member of the first link member adopts a counterbore structure. A part of the torsion spring body is fixed and attached in the ring groove, the other arm of the torsion spring is attached in the straight groove of the horizontal pull link, and the horizontal pull link also adopts a counterbore structure, and the torsion spring body The claim is characterized in that the remaining portion of the is fitted into the horizontal pull link and the arm of the torsion spring mounted in the straight groove of the horizontal pull link is movable in the straight groove together with the center of the torsion spring. An automobile door lock electric unlocking mechanism having the composite structure according to 1. The automobile door lock electric unlocking mechanism having a composite structure according to claim 4, wherein the counterbore type structure of the horizontal pulling link employs a truck type chute and slides a torsion spring in the chute. The track-type chute of the horizontal pull link adopts a drum-shaped chute in which the middle part protrudes slightly outward or a constricted chute in which the middle part contracts slightly inward, and has excellent kinematic characteristics and mechanical characteristics for the door lock system. The automobile door lock electric unlocking mechanism having the composite structure according to claim 5, wherein the characteristics can be imparted. The automobile door lock electric unlocking mechanism having a composite structure according to claim 1, wherein the triple gear is mounted coaxially with an idler but does not rotate coaxially. The automobile door lock electric unlocking mechanism having the composite structure according to claim 2, wherein the bolt gear is coaxially attached to the double gear. The composite structure according to claim 1, wherein the torsion spring has a configurable initial torsion angle, and the arm is curved and attached in the non-operating force receiving direction side at the time of attachment. Car door lock electric unlocking mechanism. In the door lock unlocking chain, the force amplification mechanism performs two-stage gear deceleration by a triple gear, a double gear and an idler, the upper gear of the double gear is an incomplete gear, and the length of the toothless stroke of the incomplete gear is two. The automobile door lock electric unlocking mechanism having the composite structure according to claim 1, wherein the chain is determined according to the intermittent time of the chain. The gear connecting rod is provided as a lever type gear connecting rod member having a force amplification effect, the right side of the gear control rod is a link mechanism connecting rod including the composite member , and the left side is a partial gear type structure that meshes with an idler. The automobile door lock electric unlocking mechanism having the composite structure according to claim 2. The automobile door lock electric unlocking mechanism having a composite structure according to claim 1, wherein the idler is provided as a flexible gear structure having a rigid skeleton in the force amplification mechanism.

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