JP2007040084A - Door handle device for automobile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a door handle device for an automobile capable of preventing door opening against collision in both directions as much as possible without increasing the weight of a lever. <P>SOLUTION: This door handle device 1 for the automobile is provided with a handle 3 provided rotatably in a bracket 2 on a door main body side and rotated and operated between a door opened position and a door closed position, the lever 5 rotating from a stand-by position to an unlocked position in the interlocking relationship with travel of the handle 3 from the door closed position to the door opened position to unlock a door locking mechanism, and a counterweight part 5a provided on the lever 5 and generating rotation torque in the reverse direction to rotation torque generated in the handle 3 in the lever 5 when shock acceleration in side face collision is inputted. This door handle device 1 is provided with a magnetic force energizing means 10 for energizing the lever 5 onto a stand-by position side by magnetic force. The magnetic force energizing means 10 has a first magnet 11a provided on the lever 5 and a first magnetic substance 12a provided in the bracket 2 and arranged by opposing to the lever 5 positioned at the stand-by position. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an automobile door handle device in which measures are taken to prevent a door from being opened due to impact acceleration during a side collision or the like.

  As disclosed in Patent Document 1, various door handle devices for automobiles having a door opening prevention means at the time of collision have been proposed. FIG. 9 shows a general structure of an automobile door handle device.

  In FIG. 9, an automobile door handle device 100 includes a bracket 101 fixed to a door main body, a grip-type that is rotatably provided on the bracket 101 and is rotated between a door closed position and a door open position. A handle 102 and a lever 104 which is provided on the bracket 101 so as to be rotatable about the support shaft 103 and which is rotated and shifted from the standby position to the unlock position in conjunction with the operation of the handle 102 from the door closing position to the door opening position. A spring 105 for urging the lever 104 toward the standby position, a wire 106 having one end fixed to the lever 104, and a door lock mechanism (not shown) having the other end fixed to the lever 106. Yes.

  The lever 104 is integrally provided with a counterweight portion 104a for causing the lever 104 to generate a rotational torque in a direction opposite to the rotational torque generated in the handle 102 when an impact acceleration at the time of a side collision is input. In this conventional example, the center of gravity is provided at a position above the support shaft 103 of the lever 104.

  In the above configuration, when the handle 102 is operated by the operator from the door closed position to the door open position side (a arrow direction in FIG. 9), the lever 104 rotates in the clockwise direction (b arrow direction in FIG. 9). It is moved to the unlock position. When the lever 104 shifts to the unlock position, the door lock mechanism (not shown) is unlocked. Further, the operator can open the door by pulling the handle 102 in the direction of arrow a in FIG.

  By the way, when an automobile causes a side collision or the like, impact acceleration acts on the door. When the impact acceleration is in the input direction C from the outside to the inside of the door, the handle 102 is rotated in the direction of arrow a by the impact acceleration, and the lever 104 is counterclockwise rotated by the mass of the counterweight portion 104a (opposite of the arrow b). Rotation torque that rotates in the direction) is generated.

  Further, when the impact acceleration is in the input direction D from the inside to the outside of the door, a rotational torque is generated by which the handle 102 rotates in the opposite direction of the arrow a and the lever 104 rotates in the direction of the arrow b.

  That is, when the impact acceleration is in the input direction C from the outside to the inside of the door, the input acceleration at the time of collision is α, the torque of the handle 102 is HT, the torque of the lever 104 is LT, and the biasing force of the spring 105 is ST. Then, if the expression α · HT <α · LT + ST (1) is satisfied, the door can be reliably prevented from being opened.

  Further, when the impact acceleration is in the input direction D from the inside to the outside of the door, the opening of the door can be surely prevented if the expression α · LT <α · HT + ST (2) is satisfied.

  In the case where higher input acceleration is applied than in the above formulas (1) and (2), it is very difficult to make sure that both collisions are dealt with, but in order to prevent the door from opening as much as possible, It is necessary to increase the torque of the lever 104 according to the torque of the handle 102 at the time of impact.

Here, the torque increase of the lever 104 can also be achieved by setting the position of the center of gravity farther from the center of rotation. However, in consideration of the installation space of the lever 104, it is actually achieved by increasing the counterweight portion 104a. Will be.
Japanese Patent Laid-Open No. 2003-13630

  However, in recent years when weight reduction of vehicles is required, it is necessary to avoid weight increase of the lever 104. In particular, the lever 104 has a very heavy weight if it has a specification that accommodates an antenna or switches in the handle 102.

  Therefore, an object of the present invention is to provide an automotive door handle device that can prevent door opening as much as possible against a collision in both directions without increasing the weight of a lever.

  The invention according to claim 1, which achieves the above object, is provided on a door body so as to be rotatable, and is operated to rotate between a door open position and a door closed position, and from the door closed position to the door open position. A lever that rotates from the standby position to the unlock position in conjunction with the movement and unlocks the door lock mechanism, and a rotational torque that is attached to the lever and that is generated in the handle when an impact acceleration at the time of a side collision is input. Is a door handle device for an automobile provided with a counterweight portion for generating reverse torque in the lever, and is provided with magnetic force urging means for urging the lever toward the standby position by magnetic force. And

  According to a second aspect of the present invention, there is provided the automotive door handle device according to the first aspect, wherein the magnetic force biasing means is provided on one of a door main body side member and the lever that rotatably support the handle. And a magnetic body provided on the other side.

  The invention according to claim 3 is the door handle device for an automobile according to claim 1 or 2, wherein the magnetic force urging means has its movement resistance in the process of moving the lever from the standby position to the unlocking position. It is configured to allow the magnetic force to act as follows.

  According to a fourth aspect of the present invention, there is provided the automotive door handle device according to the first aspect, wherein the magnetic force urging means is provided on one of the handle and the lever and on the other. It is characterized by comprising a magnetic material.

  According to a fifth aspect of the present invention, in the automobile door handle device according to the fourth aspect of the present invention, the magnetic force between the magnet and the magnetic body acts on a surface that transmits a rotational operation force from the handle to the lever. It is characterized by being set to.

  According to the first aspect of the present invention, since the lever positioned at the standby position is urged toward the standby position by the magnetic force of the magnetic force urging means, the rotational torque of the lever generated by the input acceleration at the time of collision or the like is reduced accordingly. Even if set, the door can be prevented from opening. Therefore, it is possible to prevent the door from opening as much as possible against a collision in both directions without increasing the weight of the lever.

  According to the invention of claim 2, the same effect as that of the invention of claim 1 can be obtained.

  According to the invention of claim 3, in addition to the effect of the invention of claim 1 or claim 2, even when the lever is moved from the standby position to the unlock position by the input acceleration at the time of a collision or the like, the moving force is applied with a magnetic force. It is reduced by the magnetic force of the biasing means. Therefore, it is possible to prevent the lever from reaching the unlocked position as much as possible, and to prevent the door lock mechanism from being unlocked.

  According to the invention of claim 4, in addition to the effect of the invention of claim 1, the lever and the handle are moved separately and collide with each other by the input acceleration at the time of collision or the like, and the lever is moved to the unlocking position side. The situation can be prevented.

  According to the fifth aspect of the present invention, in addition to the effect of the fourth aspect of the invention, the lever slides relative to the handle when the handle is rotated, but the substantial distance between the magnet and the magnetic body does not change. The magnetic force of the means acts only slightly as a rotational operation resistance of the handle. Therefore, it is possible to prevent the magnetic force urging means from causing a decrease in the operability of the handle as much as possible.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. 1 to 4 show an embodiment of the present invention, FIG. 1 is a front view of a door handle device 1A for an automobile, FIG. 2 is a rear view of the door handle device 1A for an automobile, and FIG. FIG. 4 is a schematic plan view of the installation location of the magnetic force urging means 10.

  1 to 3, an automotive door handle device 1 </ b> A is provided with a bracket 2 which is a door body side member fixed to the door body, and a rotatable portion around the support portion (not shown). A grip handle 3, a lever 5 that is rotationally displaced from the standby position to the unlocked position in conjunction with the rotation of the handle 3, a spring 6 that biases the lever 5 toward the standby position, and a lever 5 A wire 8 (shown in FIG. 2) having one end fixed to the door, a door lock mechanism (not shown) to which the other end of the wire 8 is fixed, and a magnetic force that urges the lever 5 toward the standby position by a magnetic force. Force means 10.

  The handle 3 includes a handle body 3a exposed to the outside of the door panel 7 and a handle side locking portion 3b inserted into the door panel 7, and moves from the door closed position by moving in the direction of arrow a in FIG. Rotated to the open position.

  The lever 5 is provided on the bracket 2 so as to be rotatable about the support shaft 4, and rotates and changes between the standby position and the lock release position about the support shaft 4. In the unlock position, the door lock mechanism (not shown) is unlocked. The lever 5 is integrally provided with a counterweight portion 5a, and the center of gravity of the lever 5 is set above the support shaft 4 by the mass of the counterweight portion 5a. That is, when the impact acceleration at the time of a side collision is input, the lever 5 generates a rotational torque in a direction opposite to the rotational torque generated in the handle 3. Further, the lever 5 is provided with a lever-side locking portion 5b, and the handle-side locking portion 3b is locked to the lever-side locking portion 5b. When the handle 3 is rotated from the door closed position to the door open position, the rotation is transmitted from the handle side locking portion 3b to the lever side locking portion 5b, whereby the lever 5 is shifted from the standby position to the lock release position.

  As shown in FIGS. 1 to 4, the magnetic force urging means 10 includes a first magnet 11 a and a first magnetic body 12 a that are provided on the front surfaces of the lever 5 and the bracket 2 that are located at the standby position and that are opposed to each other. The lever 5 and the bracket 2 are composed of a pair of second magnets 11b and 11c and second magnetic bodies 12b and 12c respectively provided on both side surfaces of the lever 5 and the bracket 2 that are arranged to face each other. The first magnet 11 a and one second magnet 11 b are integrally formed and are screwed to the lever 5. The first magnetic body 12 a and one second magnetic body 12 b are also formed integrally and are screwed to the bracket 2. The other second magnet 11c and the other second magnetic body 12c are also screwed to the lever 5 and the bracket 2, respectively.

  Further, as shown in FIG. 4, the pair of left and right second magnetic bodies 12b and 12c are provided with the second magnet 11b at all positions between the standby position (solid line position) of the lever 5 and the unlocking position (two-dot chain line position). , 11c, the dimension W is set to be opposed. The first and second magnetic bodies 12a, 12b, and 12c are formed of, for example, ferromagnetic iron or the like.

  In the above configuration, when the operator operates the handle 3 from the door closed position indicated by the solid line in FIG. 3 to the door open position side (in the direction of arrow a) indicated by the two-dot chain line in FIG. 3, the lever 5 is indicated by the solid line in FIG. It rotates from the standby position to the unlocked position side (b arrow direction). When the lever 5 is rotated to the unlocking position indicated by the two-dot chain line in FIG. 3, the door lock mechanism (not shown) is unlocked. Further, the operator pulls the handle 3 toward the door opening position (in the direction of arrow a) to open the door (not shown).

  In the state where the handle 3 is held at the door closed position and the lever 5 is held at the standby position, the handle side locking portion 3b of the handle 3 is obtained by the attractive force (magnetic force) of the magnetic force urging means 10 and the spring force of the spring 6. The lever side locking portion 5b of the lever 5 is biased and held toward the sliding surface 3c, and the handle body 3a of the handle 3 is biased and held toward the door panel 7. Further, in a state where the lever side latching portion 5b is urged and held on the sliding surface 3c, the magnetic force urging means 10 abuts on each other while the first magnet 11a and the first magnetic body 12a act on the attraction force. -It is constructed so that there is no gap between them, and there is no play or play when the handle 3 is operated.

  When the handle 3 is operated against the attractive force (magnetic force) of the magnetic force urging means 10 and the spring force of the spring 6, the lever side locking portion 5b of the lever 5 slides on the handle side locking portion 3b. While rotating on the surface 3 c, the support shaft 4 rotates around the surface 3 c, and the back surface 5 c of the lever side locking portion 5 b of the lever 5 is brought into contact with the stopper portion 2 a of the bracket 2. When the lever 5 is rotated to this position, the handle 3 cannot be rotated further than this position, the handle 3 reaches the door open position, and the lever 5 reaches the lock release position.

  By the way, when the automobile causes a side collision or the like, the impact acceleration α at the time of the side collision acts on the door. When the impact acceleration α is in the input direction C from the outside to the inside of the door, the door 3 is in the door opening position direction (arrow a direction) and the lever 5 is in the standby position direction (arrow b). Rotational torque is generated with each direction being the opposite direction). Here, in addition to the spring force of the spring 6, the attractive force (magnetic force) of the magnetic force urging means 10 acts in the standby position direction of the lever 5. In other words, the door opening due to the rotational torque of the handle 3 is countered by the rotational torque of the lever 5, the spring force of the spring 6, and the magnetic force of the magnetic force urging means 10, thereby preventing the door from opening as much as possible.

  When the impact acceleration is in the input direction D from the inside to the outside of the door, the handle 3 is moved toward the door closed position (opposite to the arrow a direction) by the impact acceleration α, and the lever 5 is unlocked. Rotational torque is generated with each direction (b arrow direction) as the rotational direction. Here, in addition to the spring force of the spring 6, the attractive force (magnetic force) of the magnetic force urging means 10 acts in the standby position direction of the lever 5. That is, the door opening due to the rotational torque of the lever 5 is countered by the rotational torque of the handle 3, the spring force of the spring 6, and the magnetic force of the magnetic force urging means 10, thereby preventing the door opening as much as possible.

  As described above, in the automotive door handle device 1A, the lever 5 positioned at the standby position is urged toward the standby position mainly by the attractive force (magnetic force) between the first magnet 11a and the first magnetic body 12a. The door can be prevented from opening even if the rotational torque of the lever 5 generated by the input acceleration at the time of collision or the like is set to be small accordingly. Therefore, it is possible to prevent the door from opening as much as possible against a collision in both directions without increasing the weight of the lever 5. As described above, since the rotational torque of the lever 5 is compensated by the magnetic force urging means 10, the weight of the lever 5 can be prevented even when the handle 3 is of a specification that accommodates an antenna or switches.

  In addition, even if the lever 5 moves from the standby position to the unlocking position side due to the impact acceleration at the time of a side collision, the lever 5 is bound to the standby position side by the magnetic force of the magnetic force urging means 10. Movement can be suppressed as much as possible, and the door opening probability at the time of collision can be reduced.

  In this embodiment, the magnetic force urging means 10 includes second magnets 11 b and 11 c and second magnetic bodies 12 b and 12 c in addition to the first magnet 11 a and the first magnetic body 12 a, and from the standby position of the lever 5. Since the magnetic force serving as a movement resistance is also applied in the process of moving to the unlocking position, the moving force is also applied in the process of moving the lever 5 from the standby position to the unlocking position due to input acceleration during a collision or the like. It is reduced by the magnetic force (attraction force) between the second magnets 11b and 11c and the second magnetic bodies 12b and 12c. Therefore, it is possible to prevent the lever 5 from reaching the unlock position as much as possible, and to prevent the door lock mechanism (not shown) from being unlocked.

  Needless to say, the magnetic force urging means 10 may be composed of only the first magnet 11a and the first magnetic body 12a.

  Further, the magnetic force urging means 10 may be configured such that the first magnet 11a and the first magnetic body 12a abut against each other.

  In this embodiment, the magnetic force urging means 10 includes a first magnet 11 a and a pair of second magnets 11 b and 11 c provided on the lever 5, a first magnetic body 12 a and a pair of second magnets provided on the bracket 2. Although it comprised from the body 12b and 12c, you may provide a magnet in the bracket 2 and a magnetic body in the lever 5 conversely. Further, a magnet may be provided on both the bracket 2 and the lever 5, and the lever 5 may be urged toward the standby position side by using an attractive force or a repulsive force between the magnets.

  5 to 7 show other embodiments of the present invention, FIG. 5 is a front view of a door handle device 1B for an automobile, FIG. 6 is a sectional view taken along line BB of FIG. 5, and FIG. FIG.

  5-7, the structure of the magnetic force urging means 20 is mainly different in the door handle device 1B for automobiles of this other embodiment compared with the thing of the said embodiment.

  That is, the magnetic force urging means 20 includes a magnet 21 provided on the handle side locking portion 3 b of the handle 3 and a magnetic body 22 provided on the lever side locking portion 5 b of the lever 5. The magnet 21 is embedded in the handle side locking portion 3b and is disposed so that one surface thereof faces the lever side locking portion 5b. The magnetic body 22 is embedded in the lever side locking portion 5b and is disposed so that one surface thereof faces the handle side locking portion 3b. The outer peripheral surface of the handle side locking portion 3b is covered with a bush member 23 having a low friction coefficient. Accordingly, the bush member 23 is configured as a sliding surface 3c (shown in FIG. 7) of the magnet 21 of the lever 5.

  Further, when the impact acceleration α is in the input direction C from the outside to the inside of the door, the counterweight portion 5a generates an opposite torque that balances the torque on the handle 3 side due to the impact acceleration α. It is set to act on.

  Since the other configuration is the same as that of the above-described embodiment, the description is omitted to avoid redundant description. The same components in the drawings are given the same reference numerals for clarification.

  In this other embodiment, when the impact acceleration α is in the input direction C from the outside to the inside of the door, the handle 3 is in the door opening position direction (a arrow direction) and the lever 5 is in standby by the impact acceleration α. Rotational torque is generated with the position direction (the direction opposite to the arrow b direction) as the rotational direction. Here, the spring force of the spring 6 acts in the standby position direction of the lever 5. In other words, the door opening due to the rotational torque of the handle 3 is countered by the rotational torque of the lever 5 and the spring force of the spring 6, thereby preventing the door from opening as much as possible.

  When the impact acceleration is in the input direction D from the inside to the outside of the door, the handle 3 is moved toward the door closed position (opposite to the arrow a direction) by the impact acceleration α, and the lever 5 is unlocked. Rotational torque is generated with each direction (b arrow direction) as the rotational direction. Here, in addition to the spring force of the spring 6, the attractive force (magnetic force) of the magnetic force urging means 200 acts in the standby position direction of the lever 5. That is, the door opening due to the rotational torque of the lever 5 is countered by the rotational torque of the handle 3, the spring force of the spring 6, and the magnetic force of the magnetic force urging means 10, thereby preventing the door opening as much as possible.

  As described above, the door handle device 1B for an automobile can prevent the opening of the door as much as possible with respect to the collision in both directions without increasing the weight of the lever 5, as in the above-described embodiment.

  In this other embodiment, since the magnet 21 provided on the handle 3 and the magnetic body 22 provided on the lever 5 are configured, the lever 5 and the handle 3 are separately provided by an input acceleration at the time of a collision or the like. It is possible to prevent a situation in which the levers 5 move to collide with each other and move the lever 5 toward the unlock position.

  In this other embodiment, the magnet 21 is provided in the handle side locking portion 3 b of the handle 3, and the magnetic body 22 is provided in the lever side locking portion 5 b of the lever 5, and the magnetic force between the magnet 21 and the magnetic body 22 is provided. The rotational operation force from the handle 3 is set to act on a surface that transmits the lever 5 to the lever 5. Accordingly, when the handle 3 is rotated, the lever-side locking portion 5b of the lever 5 slides on the handle-side locking portion 3b of the handle 3, but the substantial distance between the magnet 21 and the magnetic body 22 does not change. The magnetic force of the magnetic force urging means 20 acts only slightly as the rotational operation resistance of the handle 3. Therefore, it is possible to prevent the magnetic force urging means 20 from causing a decrease in the operability of the handle 3 as much as possible.

  In this other embodiment, since the magnet 21 and the magnetic body 22 are not in direct contact with each other by the bush member 23, wear due to sliding between metals can be prevented.

  FIG. 8A shows a first modification of the magnetic force urging means 30 of the other embodiment. In the magnetic force urging means 30 of the first modified example, the magnetic body 22 on the handle side locking portion 3 b side is embedded on the surface opposite to the lever 5.

  In the first modification, the magnet 21 on the lever side locking portion 5b side does not directly contact the magnetic body 22, so that it is not necessary to cover the outer peripheral surface of the handle side locking portion 3b with a bush member.

  FIG. 8B shows a second modification of the magnetic force urging means 31 of the other embodiment. In the magnetic force urging means 31 of the second modified example, the magnetic body 22 on the handle side locking portion 3b side is embedded on the side opposite to the lever 5 as in the first modified example. However, unlike the first modification, the shape of the magnetic body 22 is set to a triangular shape.

  Similarly to the first modified example, the second modified example need not cover the outer peripheral surface of the handle side locking portion 3b with the bush member.

  In other embodiments and modifications, the magnetic force urging means 20, 30, 31 are provided with a magnet 21 on the handle 3 and a magnetic body 22 on the lever 5. The handle 3 may be provided with a magnetic material. Further, a magnet may be provided on both the handle 3 and the lever 5, and the lever 5 may be urged to the standby position side by using an attractive force or a repulsive force between the magnets.

  In each of the above embodiments, the case where the present invention is applied to the vehicle door handle device 1 using the grip handle 3 has been described. However, the vehicle using the flap handle in which the handle and the lever are separated. Of course, the present invention can be similarly applied to the door handle device.

1 is a front view of an automobile door handle device according to an embodiment of the present invention. 1 is a back view of an automobile door handle device according to an embodiment of the present invention. FIG. 2 shows an embodiment of the present invention and is a cross-sectional view taken along line AA in FIG. 1. FIG. 5 is a schematic plan view of an installation location of the magnetic force urging means according to the embodiment of the present invention. It is a front view of the door handle device for vehicles which shows other embodiments of the present invention. 6 shows another embodiment of the present invention and is a cross-sectional view taken along the line BB of FIG. FIG. 6 shows another embodiment of the present invention and is a cross-sectional view taken along the line CC of FIG. 5. (A) is a principal part block diagram of the 1st modification of a magnet biasing means, (b) is a principal part block diagram of the 2nd modification of a magnet biasing means. It is sectional drawing of the door handle apparatus for motor vehicles of a prior art example.

Explanation of symbols

1A, 1B Automotive door handle device 2 Bracket (door body side member)
3 Handle 5 Lever 5a Counterweight part 10 Magnetic force biasing means 11a First magnet 11b, 11c Second magnet 12a First magnetic body 12b, 12c Second magnetic body 20 Magnet biasing means 21 Magnet 22 Magnetic body 30, 31 With magnet Means

Claims (5)

A handle that is rotatably mounted on the bracket and is rotated between the door open position and the door close position, and rotates from the standby position to the unlock position in conjunction with the movement of the handle from the door close position to the door open position. And a counterweight part attached to the lever and generating a rotational torque in the direction opposite to the rotational torque generated in the handle when the impact acceleration at the time of a side collision is input. A door handle device,
A door handle device for an automobile comprising magnetic force urging means for urging the lever toward the standby position by magnetic force. The automobile door handle device according to claim 1,
The magnetic force urging means is composed of a door body side member that rotatably supports the handle and a magnet provided on one of the levers, and a magnetic body provided on the other. Car door handle device. The automobile door handle device according to claim 1 or 2,
The automobile door handle device according to claim 1, wherein the magnetic force urging means is configured to act on a magnetic force that acts as a movement resistance in the process of moving the lever from the standby position to the unlock position. The automobile door handle device according to claim 1,
The automobile door handle device according to claim 1, wherein the magnetic force urging means comprises a magnet provided on one of the handle and the lever, and a magnetic body provided on the other. The automobile door handle device according to claim 4,
The automobile door handle device according to claim 1, wherein a magnetic force between the magnet and the magnetic body is set to act on a surface that transmits a rotational operation force from the handle to the lever.

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