CN107905649B

CN107905649B - Side door outer handle

Info

Publication number: CN107905649B
Application number: CN201711107157.4A
Authority: CN
Inventors: 覃仁泽
Original assignee: Dongfeng Motor Co Ltd
Current assignee: Dongfeng Motor Co Ltd
Priority date: 2017-11-10
Filing date: 2017-11-10
Publication date: 2021-03-09
Anticipated expiration: 2037-11-10
Also published as: CN107905649A

Abstract

The invention discloses a side door outer handle which comprises a handle body and a handle support, wherein the handle support is installed on a metal plate outside a vehicle door, the handle body comprises a connecting end and a pulling end, the connecting end is movably connected with the handle support, the pulling end can be pulled by a user and rotates around the connecting end, a balancing weight connecting rod is installed on the handle support, when the pulling end of the handle body is pulled outwards, the handle body drives the balancing weight connecting rod to rotate, the balancing weight connecting rod drives a door lock inhaul cable pull rod to unlock, a strength weakening unit is arranged on the handle support, the strength weakening unit enables the handle support to be elastically deformed when the handle support is collided by the side face, and the handle body is separated from the balancing weight connecting rod. According to the invention, the strength weakening unit is arranged on the handle bracket, so that the door lock is prevented from being opened accidentally when the side surface is collided.

Description

Side door outer handle

Technical Field

The invention relates to the technical field of automobiles, in particular to an outer handle of a side door.

Background

The outer handle of side door is as the actuating mechanism that opens of lock, and the intensity in each region of traditional handle is the same, and the increase in strength as far as is guaranteed moreover that the impact acceleration that each region bore when bumping to the side is the same for outer handle and support are whole deformation, and the panel beating shape of planking receives the effect of support, also wholly takes place deformation.

However, in a CNCAP (collision safety performance test) or a law collision test, the side door outer handle is often opened by acceleration, which causes problems such as associated door lock release, door opening, and influence on the safety performance of the automobile.

Therefore, there is a need for a side door outer handle that can prevent accidental opening of a door lock in a side impact.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide the side door outer handle capable of preventing the door lock from being opened accidentally during side collision.

The technical scheme of the invention provides a side door outer handle, which comprises a handle body and a handle bracket, wherein the handle bracket is arranged on a metal plate outside a vehicle door, the handle body comprises a connecting end and a pulling end, the connecting end is movably connected with the handle bracket, the pulling end can be pulled by a user and rotates around the connecting end, a balancing weight connecting rod is arranged on the handle bracket, when the pulling end of the handle body is pulled outwards, the handle body drives the balancing weight connecting rod to rotate, the balancing weight connecting rod drives a door lock inhaul cable pull rod to unlock,

the handle support is provided with a strength weakening unit, the strength weakening unit enables the handle support to elastically deform when the handle support is collided by the side face, and the handle body is separated from the balancing weight connecting rod.

Further, the strength weakening unit is a weakening gap formed in the inner side face of the handle bracket, the weakening gap divides the handle bracket into a first part bracket and a second part bracket, the first part bracket is close to the front of the vehicle body, and the second part bracket is close to the rear of the vehicle body.

Further, the cross section of the weakening notch is V-shaped, or semicircular, or trapezoidal, or quadrangular.

Further, the opening angle alpha of the weakening notch is 90-170 degrees.

Further, when the cross section of the weakening notch is V-shaped, the opening angle alpha of the V-shaped notch is 90-120 degrees.

Further, when the cross section of the weakening notch is V-shaped, the thickness of the V-shaped notch along the Y direction is H₁The thickness of the handle bracket at the corresponding position of the V-shaped notch along the Y direction is H₂，H₁/H₂≥50％。

Further, when the cross section of the weakening notch is V-shaped, the V-shaped notch penetrates through the handle bracket in the vertical direction.

Further, the strength weakening unit is arranged in the middle of the length of the support and comprises a connecting pin and a torsion spring, the handle support comprises a first part support and a second part support, the first part support is close to the front of the vehicle body, the second part support is close to the rear of the vehicle body, the first part support and the second part support are connected through the connecting pin and can rotate around the connecting pin, and the torsion spring is sleeved on the connecting pin and provides deformation restoring force.

Further, the torsion value of the torsion spring is F, and the weight of the first part bracket of the first bracket is M₁The mass of the second part of the second bracket is M₂，F＜30G*(M₁-M₂) Where G is 1 acceleration of gravity.

Further, the first part of the brackets and the second part of the brackets form inclined planes at the positions where the connecting pins are connected, a rotation avoidance angle is formed between the two inclined planes, and the rotation avoidance angle beta is not less than 18 degrees.

After adopting above-mentioned technical scheme, have following beneficial effect:

according to the invention, the strength weakening unit is arranged on the handle bracket, so that when the outer door handle is collided by the side surface, the handle bracket is elastically deformed, the handle body is separated from the balancing weight connecting rod, the handle body cannot drive the balancing weight connecting rod to rotate, the balancing weight connecting rod cannot drive the door lock inhaul cable to unlock, and the door lock is prevented from being accidentally opened when the side surface is collided.

Drawings

The disclosure of the present invention will become more readily understood by reference to the drawings. It should be understood that: these drawings are for illustrative purposes only and are not intended to limit the scope of the present disclosure. In the figure:

FIG. 1 is a schematic structural view of a side door outer handle according to the present invention as viewed from the outside of a vehicle;

FIG. 2 is a schematic view of the side door outer handle according to the present invention as viewed from the inside of the vehicle;

FIG. 3 is a perspective view of the side door outer handle of the present invention;

FIG. 4 is a schematic view of the inner side of the handle support according to the first embodiment of the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 4 at A;

FIG. 6 is a schematic view of the inner side of the handle holder according to the second embodiment of the present invention;

fig. 7 is a partially enlarged view at B in fig. 6.

Reference symbol comparison table:

10-side door outer handle 20-vehicle door outer sheet metal 30-door lock

1-handle body 2-handle support 3-counterweight connecting rod

4-weakening gap 5-connecting pin 6-torsion spring

11-connecting end 12-pulling end 21-first part bracket

22-second part bracket 31-door lock cable ball head 32-door lock cable pull rod

Detailed Description

The following further describes embodiments of the present invention with reference to the accompanying drawings.

It is easily understood that according to the technical solution of the present invention, those skilled in the art can substitute various structures and implementation manners without changing the spirit of the present invention. Therefore, the following detailed description and the accompanying drawings are merely illustrative of the technical aspects of the present invention, and should not be construed as limiting or restricting the technical aspects of the present invention.

The terms of orientation of up, down, left, right, front, back, top, bottom, and the like referred to or may be referred to in this specification are defined relative to the configuration shown in the drawings, and are relative terms, and thus may be changed correspondingly according to the position and the use state of the device. Therefore, these and other directional terms should not be construed as limiting terms.

The front, the back, the upper, the lower, the outer and the inner parts of the invention are based on the direction of the whole vehicle. The X direction is along the front-back direction of the whole vehicle, and the Y direction is along the left-right direction of the whole vehicle.

As shown in fig. 1, the side door outer handle 10 is a handle mounted on the outside of the door, and can be mounted on the front door and the rear door. The user opens the door from outside the vehicle by pulling the side door outer handle 10.

As shown in fig. 1-3, an outer handle 10 of a side door comprises a handle body 1 and a handle bracket 2, the handle bracket 2 is mounted on an outer sheet metal 20 of the door, the handle body 1 comprises a connecting end 11 and a pulling end 12, the connecting end 11 is movably connected with the handle bracket 2, the pulling end 12 can be pulled by a user and rotates around the connecting end 11, a counterweight connecting rod 3 is mounted on the handle bracket 2, when the pulling end 12 of the handle body 1 is pulled outwards, the handle body 1 drives the counterweight connecting rod 3 to rotate, the counterweight connecting rod 3 drives a door lock pull rod 32 of a door lock 30 to unlock,

be equipped with intensity weakening unit on the handle support 2, intensity weakening unit makes handle support take place elastic deformation when receiving the side collision, and handle body 1 breaks away from with balancing weight connecting rod 3.

As shown in fig. 1, the handle holder 2 is mounted in the door outer metal plate 20 when viewed from the outside of the door, and the handle holder 2 is hidden on the back surface of the door outer metal plate 20. The user can only see the handle body 1. When the user uses the side door outer handle 10, the user inserts a hand into the groove between the pulling end 12 and the connecting end 11, and then pulls the pulling end 12 to rotate the pulling end 12 towards the outside of the vehicle. At this moment, the connecting end 11 also rotates towards the outside of the car, because the handle body 1 acts on the balancing weight connecting rod 3, the handle body 1 drives the balancing weight connecting rod 3 to rotate, and the balancing weight connecting rod 3 drives the door lock 30 to unlock.

Specifically, as shown in fig. 3, the door lock 30 includes an unlocking ball 31 and a door lock cable pull rod 32, the unlocking ball 31 is mounted on the counterweight block connecting rod 3 and rotates together with the counterweight block connecting rod 3, and the door lock cable pull rod 32 is driven in the rotating process of the unlocking ball 31 to unlock the door lock 30.

Under the ideal state among the prior art, make each regional intensity of handle support the same, receive the side impact, the impact acceleration that each region of handle support bore tends to unanimous for handle body, handle support and the outer panel beating of door are whole deformation, and the result can not break away from between handle body and the balancing weight connecting rod. In the actual collision process, the front end and the rear end of the handle bracket bear opposite acceleration vectors under the influence of the deformation of the side door outer plate metal plate (namely, the handle cannot be ensured to bear the same acceleration vectors in the length direction)Size and directionThe impact acceleration) causes the handle 1 and the bracket 2 to move relatively, so that the counterweight connecting rod is driven to realize unlocking, and certain potential safety hazards are caused.

In the embodiment of the invention, because the strength weakening unit is arranged on the handle bracket 2, the strength of each area of the handle bracket 2 is different, the impact acceleration is different, and the deformation direction and degree are different. Finally, when the automobile handle is deformed, the handle body 1 is separated from the counterweight connecting rod 3, so that mistaken unlocking is prevented, and safety of personnel in the automobile is guaranteed during collision.

The first embodiment is as follows:

referring to fig. 4-5, fig. 4-5 are schematic structural views of a first embodiment of the present invention. Fig. 4 is a schematic structural view of an inner side surface of the handle holder 2 according to the first embodiment of the present invention, and fig. 5 is a partially enlarged view of a portion a in fig. 4.

In the first embodiment, the strength weakening unit is a weakening gap 4 formed in the inner side surface of the handle bracket 2, the weakening gap 4 divides the handle bracket 2 into a first part bracket 21 and a second part bracket 22, the first part bracket 21 is close to the front of the vehicle body, and the second part bracket 22 is close to the rear of the vehicle body. Since the second partial bracket 22 needs to be equipped with the counterweight connecting rod 3 and the like, the weight M of the second partial bracket 22₂Generally greater than the weight M of the first part bracket 21₁。

Alternatively, the weakening gap 4 may have a V-shaped, or semi-circular, or trapezoidal, or quadrangular cross-section.

In the present embodiment, as shown in fig. 5, when the cross section of the weakening notch 4 is V-shaped, the opening angle a of the V-shaped notch is 90 ° to 120 °. The weakening effect of the notch can be effectively improved, so that the stress concentration of the weakening unit can be ensured, and certain strength can be ensured. Wherein, when the V-shaped notch is adopted, 90-120 degrees are preferred, the range of the notch weakened by other shapes is generally 90-170 degrees, and when the chamfer angle at the end part of the notch is less than R1, the stress concentration effect of the notch is better. Wherein, the closed angle of the V-shaped gap faces the outer side of the handle bracket 2, and the opening of the V-shaped gap faces the inner side of the handle bracket 2. The outer side means a direction toward the outside of the vehicle, and the inner side means a direction toward the inside of the vehicle.

When deformed, the opening angle α of the V-shaped notch becomes smaller, and the first partial bracket 21 and the second partial bracket 22 rotate about the weakening notch 4. Because balancing weight connecting rod 3 installs on second part support 22, when second part support 22 warp for balancing weight connecting rod 3 breaks away from with handle body 1, prevents to warp in-process lock unblock.

Further, as shown in fig. 5, the thickness of the V-shaped notch in the Y direction is H₁The thickness of the handle bracket at the corresponding position of the V-shaped notch along the Y direction is H₂，H₁/H₂More than or equal to 50 percent, so that the secondary inertia of the section at the position with the maximum concentrated stressThe moment is significantly reduced and the deformation of the stent body along the weakening unit is easily guided. Wherein, the Y direction is the left and right direction of the vehicle body. Due to H₂＞H₁The first part bracket 21 and the second part bracket 22 are still partially connected together. When H is present₁/H₂At 50%, the first partial bracket 21 and the second partial bracket 22 are deformed at the time of a side collision, and the opening angle α of the V-notch is made small. This deformation is an elastic deformation, and does not cause permanent deformation of the handle holder 2.

Preferably, the V-shaped notch has a maximum width K in the X direction, where K is H₁*sin(ɑ/2/180*π)。

In this embodiment, as shown in fig. 4, when the cross section of the weakening gap 4 is V-shaped, the V-shaped gap penetrates the handle holder 2 in the up-down direction. The weakening gap 4 provided in this way is easily deformable.

Alternatively, the weakening notches 4 may be provided only at a partial position in the vertical direction of the handle holder 2, or may be provided at intervals.

Example two:

referring to fig. 6-7, fig. 6-7 are schematic structural views of a second embodiment of the present invention. Fig. 6 is a schematic structural view of an inner side surface of the handle holder 2 according to a second embodiment of the present invention, and fig. 7 is a partially enlarged view of a portion B in fig. 4.

As shown in fig. 7, the strength weakening unit includes a connecting pin 5 and a torsion spring 6, the handle bracket 2 includes a first partial bracket 21 and a second partial bracket 22, the first partial bracket 21 is close to the front of the vehicle body, the second partial bracket 22 is close to the rear of the vehicle body, the first partial bracket 21 and the second partial bracket 22 are connected by the connecting pin 5 and can rotate around the connecting pin 5, and the torsion spring 6 is sleeved on the connecting pin 5 to provide deformation restoring force.

When a side collision force is applied, the first partial bracket 21 and the second partial bracket 22 rotate around the connecting pin 5, so that the handle bracket 2 is deformed, and the counterweight connecting rod 3 is separated from the handle body 1.

Preferably, the torsion value of the torsion spring 6 is F, and the weight of the first bracket 21 is M₁Second stent second portion the quality of stent 22Amount is M₂And F < 30G (M1-M2), wherein G is 1 gravity acceleration.

Further, as shown in fig. 7, the first partial bracket 21 and the second partial bracket 22 form an inclined surface at the position of connecting the connecting pin 5, a rotation avoidance angle is formed between the two inclined surfaces, and the rotation avoidance angle β is not less than 18 °, so that interference does not occur when the first component bracket and the second partial bracket rotate relatively, extrusion deformation does not need to be overcome, and the relative rotation of the brackets is easy to realize. When deformed, the rotational avoidance angle β decreases in value.

According to the invention, the strength weakening unit is arranged on the handle bracket, so that when the handle bracket is collided laterally, the first part of bracket and the second part of bracket bear different impact acceleration, thus the deformation and direction are different, and finally the handle body is separated from the counterweight connecting rod, so that the door lock is prevented from being unlocked, and the safety of personnel in the vehicle is ensured.

The foregoing is considered as illustrative only of the principles and preferred embodiments of the invention. It should be noted that, for those skilled in the art, several other modifications can be made on the basis of the principle of the present invention, and the protection scope of the present invention should be regarded.

Claims

1. A side door outer handle comprises a handle body and a handle support, wherein the handle support is arranged on a metal plate outside a door, the handle body comprises a connecting end and a pulling end, the connecting end is movably connected with the handle support, the pulling end can be pulled by a user and rotates around the connecting end, a balancing weight connecting rod is arranged on the handle support, when the pulling end of the handle body is pulled outwards, the handle body drives the balancing weight connecting rod to rotate, the balancing weight connecting rod drives a door lock inhaul cable pull rod to execute unlocking, and the side door outer handle is characterized in that,

the handle support is provided with a strength weakening unit which is a weakening gap formed in the inner side face of the handle support, the handle support is divided into a first part support and a second part support through the weakening gap, the balancing weight connecting rod is installed on the second part support, and the second part support is provided with a first part connecting rod and a second part connecting rodWeight M of the two-part bracket₂Greater than the weight M of the first partial bracket₁The strength weakening unit enables the handle support to elastically deform when the handle support is impacted on the side face, the first partial support and the second partial support can rotate around the weakening gap as a center, and when the second partial support deforms, the handle body is separated from the counterweight connecting rod.

2. The side door outer handle according to claim 1, wherein the first partial bracket is located near a front of a vehicle body, and the second partial bracket is located near a rear of the vehicle body.

3. The side door outer handle according to claim 2, wherein the weakened notch has a V-shaped, or semi-circular, or trapezoidal, or quadrilateral cross-section.

4. The side door outer handle according to claim 3, wherein an opening angle a of the weakening notch is 90 ° to 170 °.

5. The side door outer handle according to claim 4, wherein when the weakening notch has a V-shaped cross section, an opening angle a of the V-shaped notch is 90 ° to 120 °.

6. The side door outer handle according to claim 3, wherein when the weakening notch has a V-shaped cross section, the thickness of the V-shaped notch in the Y direction is H₁The thickness of the handle bracket at the corresponding position of the V-shaped notch along the Y direction is H₂，H₁/H₂≥50％。

7. The side door outer handle according to claim 3, wherein when the cross section of the weakening notch is V-shaped, the V-shaped notch penetrates through the handle holder in the up-down direction.

8. The side door outer handle according to claim 1, wherein the strength weakening unit is provided at a position near a middle of a length of the bracket and includes a connecting pin and a torsion spring, the first partial bracket is provided near a front side of the vehicle body, the second partial bracket is provided near a rear side of the vehicle body, the first partial bracket and the second partial bracket are connected by the connecting pin and can rotate around the connecting pin, and the torsion spring is sleeved on the connecting pin to provide a deformation restoring force.

9. The side door outer handle according to claim 8, wherein the torsion spring has a torsion value of F, and the first partial bracket has a weight of M₁The mass of the second part of the stent is M₂，F＜30G*(M₁-M₂) Where G is 1 acceleration of gravity.

10. The side door outer handle according to claim 8, wherein the first partial bracket and the second partial bracket form an inclined surface at a position where the connecting pin is connected, and a rotation avoidance angle is formed between the two inclined surfaces, and the rotation avoidance angle β is greater than or equal to 18 °.