JP6919138B2 - Door switchgear - Google Patents

Description

The present invention relates to a door opening / closing device for opening / closing a vehicle door.

The door opening / closing device described in Patent Document 1 opens / closes the door of a vehicle such as an automobile. When the ratchet that maintains the meshing state between the ratchet and the latch, the latch lever that cooperates with the latch, the open lever that cooperates with the ratchet, and the open lever can be engaged, and the latch is located at the half latch position. It includes a sector gear that can be engaged with a latch lever, and a motor that rotates the sector gear.

With the latch in the half-latch position, the sector gear is rotated in one direction to engage the sector gear with the latch lever and move the latch to the full latch position. As a result, the vehicle door is closed from the semi-closed state to the fully closed state. Then, when the sector gear is rotated in the other direction, the sector gear engages with the open lever, and the contact engagement state between the latch and the ratchet is released. As a result, the meshed state between the striker and the latch is released, and the vehicle door can be opened.

Japanese Unexamined Patent Publication No. 2006-207342

In the door opening / closing device described in Patent Document 1, the sector gear is abutted and engaged with the latch lever and the open lever, and the engaging portion with the latch lever and the open lever is integrally provided with the sector gear. The sector gear is made of a metal member to ensure the strength to withstand repeated contact with the latch lever and the open lever, and the sector gear has a relatively large diameter to secure the stroke of the engaging portion. There is room for improvement in reducing the weight of the door opening / closing device.

The present invention has been made in view of the above circumstances, and an object of the present invention is to reduce the weight of the door opening / closing device.

The door opening / closing device of one aspect of the present invention includes a meshing portion that holds the vehicle door in a closed state by meshing and holding a striker provided on the vehicle body, and an actuator portion that drives the meshing portion. The unit engages with the striker at the half-latch position when the vehicle door is in the semi-closed state, and engages with the striker at the full-latch position when the vehicle door is fully closed. It has a ratchet that holds the meshed state of the striker and the latch by engaging with the ratchet, a latch lever that cooperates with the latch, and an open lever that cooperates with the ratchet. An output gear made of a resin material, which is rotated by a motor in a first direction and a second direction opposite to the first direction, an output lever made of a metal material, which is rotated integrally with the output gear, and the above. The output is arranged outside the case between the case accommodating the motor and the output gear, the output gear arranged inside the case, and the output lever arranged outside the case. It has a gear and a support plate that supports the rotation shaft of the output lever, and the output lever is when the output gear is rotated in the first direction while the latch is in the half ratchet position. To engage with the latch lever, move the latch to the full latch position, and when the output gear is rotated in the second direction, engage with the open lever to engage with the latch and the ratchet. Disengage the engaged state.

According to the present invention, the weight of the door opening / closing device can be reduced.

It is a perspective view of an example of the vehicle provided with the door opening / closing device for demonstrating the embodiment of this invention. It is an exploded perspective view of an example of a door opening / closing device. It is a schematic diagram which shows the operation of the latch and the ratchet of the door opening / closing device. It is a schematic diagram which shows the closing operation of a door opening / closing device. It is a schematic diagram which shows the opening operation of a door opening / closing device. It is a schematic diagram which shows the operation of the actuator part in the closing operation of FIG. 4 and the opening operation of FIG. It is a schematic diagram which shows the operation of the door opening / closing device in an emergency.

FIG. 1 shows an example of a vehicle provided with a door opening / closing device for explaining an embodiment of the present invention, and FIG. 2 shows an exploded view of the door opening / closing device of FIG.

The door opening / closing device 10 is applied to the back door 2 which is rotated in the vertical direction with respect to the vehicle body 1, and is attached to the lower part of the door 2. The door opening / closing device 10 includes a meshing portion 20 for meshing and holding the striker 3 provided on the vehicle body 1 and an actuator portion 70 for driving the meshing portion 20.

The meshing portion 20 includes a latch 30 that meshes with the striker 3 (see FIG. 3), a ratchet 40 that engages with the latch 30 (see FIG. 3), a latch lever 50 that links with the latch 30, and an open lever that links with the ratchet 40. Has 60 and. Further, the meshing portion 20 has a cover plate 21 and a back plate 24 for supporting the latch 30, the ratchet 40, the latch lever 50 and the open lever 60, and a bracket 28 for attaching the meshing portion 20 to the door 2.

The cover plate 21 is formed in a box shape, and the bottom plate 22 of the cover plate 21 is provided with a striker entry groove 23 into which the striker 3 enters when the vehicle door 2 is closed. The cover plate 21 is assembled to the back plate 24, and the back plate 24 has a lid plate 25 that closes the upper opening of the cover plate 21. Further, the back plate 24 has a pair of fixing portions 26 extending from the lid plate 25, and the pair of fixing portions 26 are fixed to the bracket 28. The bracket 28 is provided with a mounting portion 29 that is mounted on the door 2.

The latch 30 and the ratchet 40 are housed between the bottom plate 22 of the cover plate 21 and the lid plate 25 of the back plate 24. The latch 30 is rotatable along the bottom plate 22, and the ratchet 40 is also rotatable along the bottom plate 22.

The latch shaft 31 penetrates the lid plate 25 of the back plate 24. The latch lever 50 is arranged on the lid plate 25, and has a swing plate 51 fixed to the tip of a latch shaft 31 protruding from the lid plate 25 and an engaging pin erected on the swing plate 51. It has 52 and. The latch lever 50 fixed to the latch shaft 31 rotates integrally with the latch 30.

The open lever shaft 61, which is the rotation shaft of the open lever 60, is supported by the support portion 27 of the back plate 24, and the support portion 27 extends from the lid plate 25 of the back plate 24 and is bent upward. The open lever shaft 61 supported by the support portion 27 is arranged above the lid plate 25. The open lever 60 has an arm portion 62 extending downward from the open lever shaft 61, and the arm portion 62 extends between the cover plate 21 in which the ratchet 40 is housed and the lid plate 25 of the back plate 24. ..

FIG. 3 shows the operation of the latch 30 and the ratchet 40.

The latch shaft 31, which is the rotation shaft of the latch 30, is arranged in the lateral direction of the striker entry groove 23 of the cover plate 21. The latch 30 can rotate from the open position shown in FIG. 3 (A) to the full latch position shown in FIG. 3 (C) via the half latch position shown in FIG. 3 (B). The latch 30 is urged in the direction from the full latch position to the open position by a torsion spring (not shown).

The latch 30 has a striker engagement groove 32 extending from the outer circumference toward the latch shaft 31. When the latch 30 is in the open position, the inlet of the striker engagement groove 32 is arranged so as to overlap the inlet of the striker entry groove 23 of the cover plate 21, and the striker 3 is a groove of both the striker entry groove 23 and the striker engagement groove 32. It is possible to enter and escape from both grooves. That is, the door 2 can be opened.

On the other hand, when the latch 30 is in the half latch position or the full latch position, the striker entry groove 23 and the striker engagement groove 32 intersect, and the inlet of the striker engagement groove 32 is arranged away from the inlet of the striker entry groove 23. .. The striker 3 that has entered the striker entry groove 23 and the striker engagement groove 32 cannot exit from both grooves, and the latch 30 and the striker 3 mesh with each other.

The ratchet shaft 41, which is the rotation shaft of the ratchet 40, is provided on the side opposite to the latch shaft 31 and on the side of the striker entry groove 23. The ratchet 40 has an engaging portion 42 that engages with the latch 30, and is urged in the direction of arrow A to bring the engaging portion 42 into contact with the outer circumference of the latch 30 by a torsion spring (not shown). A full latch engaging portion 34 and a half latch engaging portion 35 are provided on the outer periphery of the latch 30 with which the engaging portion 42 abuts.

When the latch 30 rotates from the open position to the half-latch position, the engaging portion 42 of the ratchet 40 that slides into the outer periphery of the latch 30 as the latch 30 rotates engages with the half-latch engaging portion 35 of the latch 30. To engage. The engagement between the engaging portion 42 and the half-latch engaging portion 35 prevents the latch 30 from rotating from the half-latch position to the open position and is locked to the half-latch position. Then, the latch 30 that meshes with the striker 3 is locked at the half-latch position, so that the door 2 is held in the semi-closed state.

When the latch 30 further rotates from the half latch position to the full latch position, the striker 3 is pulled into the back of the striker entry groove 23 by the latch 30, and the door 2 is fully closed. Further, the engaging portion 42 of the ratchet 40 that is in sliding contact with the outer circumference of the latch 30 as the latch 30 rotates engages with the full latch engaging portion 34 of the latch 30. The engagement between the engaging portion 42 and the full latch engaging portion 34 prevents the latch 30 from rotating from the full latch position to the open position and is locked to the full latch position. Then, the latch 30 that meshes with the striker 3 is locked at the full latch position, so that the door 2 is held in the fully closed state.

The engagement between the full latch engagement portion 34 or the half latch engagement portion 35 of the latch 30 and the engagement portion 42 of the ratchet 40 is released by the open lever 60. The ratchet 40 has a pressed portion 43, and the pressed portion 43 is pressed by the arm portion 62 (see FIG. 2) of the open lever 60. The open lever 60 is rotated in a predetermined direction, and the arm portion 62 and the pressed portion 43 of the ratchet 40 are engaged with the rotation of the open lever 60, and the pressed portion 43 is pressed by the arm portion 62. Then, when the pressed portion 43 is pressed, the ratchet 40 rotates in the direction of arrow B, and the engagement between the full latch engaging portion 34 or the half latch engaging portion 35 and the engaging portion 42 is released.

When the engagement between the full latch engagement portion 34 or the half latch engagement portion 35 of the latch 30 and the engagement portion 42 of the ratchet 40 is released, the latch 30 is moved from the full latch position or the half latch position to the open position. It becomes rotatable. Then, the latch 30 is rotated to an open position where the door 2 can be opened by, for example, the urging force of the torsion spring that urges the latch 30 and the elasticity of the weather strip that seals between the door 2 and the vehicle body 1. Be moved.

Both the rotation of the latch 30 that fully closes the door 2 from the semi-closed state and the rotation of the open lever 60 that enables the door 2 to be opened are performed by the actuator unit 70. Hereinafter, the actuator unit 70 will be described.

With reference to FIG. 2 again, the actuator unit 70 is integrally formed with the motor M, which is a drive source, the worm wheel 77 that meshes with the worm 76 attached to the output shaft of the motor M, and the worm wheel 77. It has an output gear 80 that meshes with the relay gear 79, and an output lever 90 that transmits the rotation of the output gear 80. Further, the actuator unit 70 has a motor M, a worm wheel 77, an output gear 80, a base 71 and a cover 72 for supporting the output lever 90, and a support plate 73.

The motor M, the worm wheel 77, and the output gear 80 are housed inside a case composed of the base 71 and the cover 72. On the other hand, the output lever 90 is arranged on the outside of the case. The rotation shaft 81 of the output gear 80 penetrates the cover 72, and the output lever 90 is fixed to the tip end portion 82 of the rotation shaft 81 protruding from the cover 72. The output lever 90 fixed to the rotation shaft 81 rotates integrally with the output gear 80.

The support plate 73 is arranged between the cover 72 and the output lever 90, and is fixed to the outer surface of the cover 72. The support plate 73 has a bearing 74, through which the tip 82 of the rotating shaft 81 protruding from the cover 72 is inserted. The support plate 73 rotatably supports the rotating shaft 81 via the bearing 74, and reinforces the support of the rotating shaft 81.

The actuator portion 70 is assembled to the meshing portion 20 via the bracket 28. The bracket 28 has a plurality of fixed portions including a pair of fixed portions 28a and 28b to which the pair of fixed portions 26 of the back plate 24 are fixed, and in this example, in addition to the pair of fixed portions 28a and 28b. , Has another fixed portion 28c. The cover 72 of the actuator portion 70 is fixed to the fixed portions 28a to 28c of the bracket 28 by bolts 4, and the actuator portion 70 is assembled to the meshing portion 20.

Here, the support plate 73 has fixing portions 73a to 73c fixed to the outer surface of the cover 72. The fixing portions 73a to 73c are sandwiched between the fixed portions 28a to 28c of the bracket 28 and the cover 72, and the bolt 4 for fixing the cover 72 to the bracket 28 penetrates the fixing portions 73a to 73c to cover. It is fastened to 72. That is, the fixing points of the cover 72 and the support plate 73 are the same as the fixing points of the bracket 28 and the cover 72, and when the cover 72 is fixed to the bracket 28, the support plate 73 is also fixed to the cover 72. Is fixed to. As a result, the efficiency of the assembly work of the door opening / closing device 10 is increased.

The output lever 90 extends from the swing plate 91 fixed to the tip 82 of the rotation shaft 81, the pressing pin 92 erected on the swing plate 91, and the swing plate 91. It has a pressing portion 93 which is bent substantially vertically. With the actuator portion 70 assembled to the meshing portion 20, the pressing pin 92 and the pressing portion 93 are placed above the lid plate 25 of the back plate 24 with the engaging pin 52 of the latch lever 50 and the arm portion 62 of the open lever 60. It is placed between and.

The motor M is controlled by a control unit (not shown) and is rotated in both forward and reverse directions. The output lever 90 rotates in the direction of arrow C according to the rotation of the motor M in the forward direction, and the output lever 90 rotates in the direction of arrow D in response to the rotation of the motor M in the reverse direction. When the output lever 90 rotates in the direction of arrow C, the pressing pin 92 and the engaging pin 52 of the latch lever 50 engage with each other. On the other hand, when the output lever 90 rotates in the direction of arrow D, the pressing portion 93 and the arm portion 62 of the open lever 60 are engaged with each other.

FIG. 4 shows a closing operation of the door opening / closing device 10 that fully closes the door 2.

FIG. 4A shows the state of the latch lever 50 and the output lever 90 when the latch 30 is in the open position, and FIG. 4B shows the latch lever 50 and the output when the latch 30 is in the half latch position. The state of the lever 90 is shown, and FIG. 4C shows the state of the latch lever 50 and the output lever 90 when the latch 30 is in the full latch position.

With the closing operation of the door 2, the latch 30 rotates from the open position to the half-latch position, the latch 30 meshed with the striker 3 is held at the half-latch position, and the door 2 is held in the half-closed state. The control unit that controls the motor M rotates the motor M in the forward direction when the door 2 is held in the semi-closed state. As a result, the output lever 90 rotates in the direction of arrow C (see FIG. 2).

As shown in FIG. 4C, the pressing pin 92 comes into contact with the engaging pin 52 of the latch lever 50 in response to the rotation of the output lever 90 in the arrow C direction. The engaging pin 52 is pressed by the pressing pin 92, and the latch lever 50 rotates in the direction of arrow E. The latch 30 that rotates integrally with the latch lever 50 also rotates in the direction of arrow E, and the latch 30 rotates from the half latch position to the full latch position. As a result, the striker 3 is pulled into the back of the striker entry groove 23 by the latch 30, and the door 2 is fully closed. Then, the latch 30 is locked to the full latch position by the ratchet 40, and the door 2 is held in the fully closed state.

FIG. 5 shows an opening operation of the door opening / closing device 10 that enables the door 2 to be opened.

FIG. 5A shows the state of the open lever 60 and the output lever 90 when the latch 30 is locked to the full latch position by the ratchet 40, and FIG. 5B shows the latch 30 being unlocked. The state of the open lever 60 and the output lever 90 at the time of operation is shown.

The latch 30 that meshes with the striker 3 is locked to the full latch position by the ratchet 40, and the door 2 is held in the fully closed state. The control unit that controls the motor M rotates the motor M in the opposite direction based on the door opening instruction input to the control unit. As a result, the output lever 90 rotates in the direction of arrow D.

As shown in FIG. 5B, the pressing portion 93 abuts on the arm portion 62 of the open lever 60 in response to the rotation of the output lever 90 in the arrow D direction. The arm portion 62 is pressed by the pressing portion 93, and the open lever 60 rotates in the direction of arrow F. As the open lever 60 rotates in the arrow F direction, the arm portion 62 of the open lever 60 and the pressed portion 43 of the ratchet 40 (see FIG. 3C) are engaged and pressed by the arm portion 62. The ratchet 40 rotates and the latch 30 is unlocked. As a result, the latch 30 is rotated from the full latch position to the open position by, for example, the urging force of the torsion spring that urges the latch 30.

FIG. 6 shows the operation of the actuator unit 70 in the above-mentioned closing operation and opening operation.

FIG. 6A shows a state in which the output lever 90 is rotated in the arrow D direction in the open operation, and FIG. 6C shows a state in which the output lever 90 is rotated in the arrow C direction in the close operation. FIG. 6B shows a state in which the output lever 90 is in the neutral position, and the output lever 90 rotates in the arrow D direction in the open operation and in the close operation with the neutral position as a base point. Rotates in the direction of arrow C.

In the open operation, the open lever 60 is pressed by the pressing portion 93 of the output lever 90, and the stroke S1 required for the pressing portion 93 is the rotation radius L1 of the pressing portion 93 and the rotation angle of the output lever 90 in the arrow D direction. Related to θ1. Further, in the closing operation, the latch lever 50 is pressed by the pressing pin 92 of the output lever 90, and the stroke S2 required for the pressing pin 92 is the rotation radius L2 of the pressing pin 92 and the rotation of the output lever 90 in the arrow C direction. It is related to the moving angle θ2.

The output lever 90 and the output gear 80 rotate integrally, and the total rotation angle of the output gear 80 in the open operation and the close operation is θ1 + θ2. The rotation of the motor M is transmitted to the output gear 80 via the relay gear 79, and the output gear 80 that meshes with the relay gear 79 is formed in an arc shape having a center angle larger than θ1 + θ2. Then, in order to sufficiently reduce the rotation of the motor M between the relay gear 79 and the output gear 80, the output gear 80 is formed to have a relatively large diameter. In the example shown in FIG. 6, the pitch circular radius of the output gear 80 is formed. R is greater than L1 and greater than L2.

The output lever 90 that presses the latch lever 50 and the open lever 60 is made of a metal material from the viewpoint of ensuring strength to withstand repeated contact with the latch lever 50 and the open lever 60. Here, since the rotation angle of the output lever 90 is obtained by the output gear 80, the output lever 90 can be formed in a straight line and can be made smaller than the arc-shaped output gear 80. As a result, the weight of the output lever 90 made of a metal material can be reduced. On the other hand, the output gear 80 released from contact with the latch lever 50 and the open lever 60 is made of a resin material. By forming the relatively large output gear 80 from the resin material, further weight reduction is achieved.

FIG. 7 shows a method for enabling the door 2 to be opened in an emergency when a problem such as seizure occurs in the motor M.

FIG. 7A shows a case where the motor M becomes inoperable before the output lever 90 returns to the neutral position after the closing operation described above, and the pressing pin 92 of the output lever 90 and the engaging pin 52 of the latch lever 50 show. Contact with is maintained. In this case, the latch 30 is fixed at the full latch position, and the door 2 cannot be opened.

Here, the cover 72 of the actuator portion 70 is fixed to the fixed portions 28a to 28c of the bracket 28 of the meshing portion 20 by the bolt 4. When the two bolts 4 of the fixed portions 28a to 28c are removed, the actuator portion 70 rotates with respect to the meshing portion 20 about the remaining one bolt 4 of the fixed portion. It will be possible.

FIG. 7B shows a state in which the actuator portion 70 is rotated with respect to the meshing portion 20 around the bolt 4 of one fixed portion 28a. As the actuator portion 70 rotates, the engagement between the pressing pin 92 of the output lever 90 and the engaging pin 52 of the latch lever 50 is forcibly released. As a result, the door 2 can be opened.

As described above, the door opening / closing device disclosed in the present specification includes a meshing portion that holds the vehicle door in a closed state by engaging and holding a striker provided on the vehicle body, and an actuator unit that drives the meshing portion. The meshing portion meshes with the striker at the half-latch position when the vehicle door is in the semi-closed state, and meshes with the striker at the fully-latch position when the vehicle door is fully closed. The actuator has a latch, a ratchet that holds the meshed state of the striker and the latch by engaging with the latch, a latch lever that cooperates with the latch, and an open lever that cooperates with the ratchet. The portion includes a motor, an output gear made of a resin material that is rotated by the motor in a first direction and a second direction opposite to the first direction, and a metal material that is rotated integrally with the output gear. The output lever comprises, and the output lever engages with the latch lever when the output gear is rotated in the first direction while the latch is in the half ratchet position. The latch is moved to the full latch position, and when the output gear is rotated in the second direction, it engages with the open lever and releases the engagement state between the latch and the ratchet.

Further, in the door opening / closing device disclosed in the present specification, the actuator portion includes a case in which the motor and the output gear are housed, the output gear arranged inside the case, and the outside of the case. It has the force gear and a support that supports the rotation shaft of the output lever, which is arranged outside the case with the output lever arranged in.

Further, in the door opening / closing device disclosed in the present specification, the meshing portion has a bracket for fixing the actuator portion to the case, and at least a part of a plurality of fixing portions of the support to the case. Is the same as at least a part of the plurality of fixing points of the bracket to the case.

Further, in the door opening / closing device disclosed in the present specification, when the fixing portion of the bracket is released from the fixing portion other than one fixing portion among the plurality of fixing portions to the case, the actuator portion may be released. The actuator portion can be relatively rotated with respect to the meshing portion about the one fixed portion, and the actuator portion is relatively rotated while the output lever and the latch lever are engaged with each other. The engagement between the output lever and the latch lever is released.

Further, the door opening / closing device disclosed in the present specification has an attachment portion in which the bracket is attached to the vehicle door.

1 Vehicle body 2 Vehicle door 3 Striker 4 Bolt 10 Door opening / closing device 20 Mating part 21 Cover plate 22 Bottom plate 23 Striker approach groove 24 Back plate 25 Lid plate 26 Fixing part 27 Support part 28 Bracket 29 Mounting part 30 Latch 31 Latch shaft 32 Striker Engagement groove 34 Full latch Engagement part 35 Half latch Engagement part 40 Ratchet 41 Ratchet shaft 42 Engagement part 43 Pressed part 50 Latch lever 51 Swing plate 52 Engagement pin 60 Open lever 61 Open lever shaft 62 Arm part 70 Actuator Part 71 Base 72 Cover 73 Support plate 74 Bearing 76 Warm 77 Warm wheel 79 Relay gear 80 Output gear 81 Rotating shaft 82 Tip 90 Output lever 91 Swing plate 92 Pressing pin 93 Pressing part M motor

Claims (4)

A meshing portion that holds the vehicle door in a closed state by engaging and holding a striker provided on the vehicle body.
The actuator unit that drives the meshing unit and
With
The meshing portion is
When the vehicle door is in the semi-closed state, the latch engages with the striker in the half-latch position, and when the vehicle door is in the fully closed state, the latch engages with the striker in the full latch position.
A ratchet that holds the meshed state of the striker and the latch by engaging with the latch,
A latch lever linked to the latch and
With the open lever linked to the ratchet,
Have,
The actuator unit is
With the motor
An output gear made of a resin material, which is rotated by the motor in the first direction and the second direction opposite to the first direction.
An output lever made of a metal material that is rotated integrally with the output gear,
A case for accommodating the motor and the output gear,
It is arranged outside the case between the output gear arranged inside the case and the output lever arranged outside the case, and supports the output gear and the rotation shaft of the output lever. Support plate and
Have,
The output lever
When the output gear is rotated in the first direction while the latch is in the half-latch position, it engages with the latch lever and moves the latch to the full latch position.
When the output gear is rotated in the second direction, it engages with the open lever and releases the engagement state between the latch and the ratchet.
Door switchgear. The door opening / closing device according to claim 1.
The meshing portion has a bracket fixed to the case of the actuator portion.
A door opening / closing device in which at least a part of the plurality of fixing points of the support plate to the case is the same as at least a part of the plurality of fixing points of the bracket to the case. The door opening / closing device according to claim 2.
When the fixing points other than one of the plurality of fixing points of the bracket to the case are released, the actuator portion is centered on the one fixing point with respect to the meshing portion. Relative rotation is possible,
A door opening / closing device in which the engagement between the output lever and the latch lever is released by the relative rotation of the actuator portion in a state where the output lever and the latch lever are engaged. The door opening / closing device according to claim 2 or 3.
The bracket is a door opening / closing device having a mounting portion attached to the vehicle door.

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