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1. EP2635756 - A VEHICLE DOOR LOCK DEVICE

Note: Text based on automatic Optical Character Recognition processes. Please use the PDF version for legal matters

Claims

1. A vehicle door lock device comprising:

a latch mechanism (10) including a latch (11) and a pawl (12), the latch mechanism (10) adapted to be capable of holding a vehicle door in a closed state relative to a vehicle body;

a lock mechanism (20) including an open lever (21) linked with the pawl (12) so that the door can be locked, the lock mechanism (20) combined with the latch mechanism (10);

a latch-side axial support portion (15a) provided in a latch housing (15) of the latch mechanism (10) which rotatably supports a coil portion (13a) of a pawl spring (13) for biasing the pawl (12) toward a default position; and

a lock-side axial support portion (23a) provided in a lock housing of the lock mechanism (20) which rotatably supports a coil portion (22a) of an open lever spring (22) for biasing the open lever (21) toward a default position,

wherein at least part of the latch-side axial support portion (15a) overlaps with the lock-side axial support portion (23a) so that pulling out of the open lever spring (22) is prevented by means of the latch-side axial support portion (15a).


  2. The vehicle door lock device according to claim 1,
wherein the lock-side axial support portion (23a) and the latch-side axial support portion (15a) are disposed off-center relative to each other, and pulling out of the pawl spring (13) is prevented by means of the lock-side axial support portion (23a).
  3. The vehicle door lock device according to claim 2,
wherein the latch-side axial support portion (15a) includes a first cylinder portion capable (15a1) of making contact with the inner circumferential surface of the coil portion (13a) of the pawl spring (13) so as to support the coil portion (13a) of the pawl spring (13), an opposing surface that opposes the lock-side axial support portion (23a) on the side of the first cylinder portion that faces the lock mechanism (20), and a second cylinder portion that protrudes from the opposing surface toward the lock mechanism (20), and
the lock-side axial support portion includes a cylinder portion capable of making contact with the inner surface of the coil portion of the open lever spring (22) so as to support the coil portion (22a) of the open lever spring (22), the cylinder portion having a center line that is the same as a center line of the second cylinder portion, a fitting hole provided in the cylinder portion into which the second cylinder portion can be fitted, and a leading end surface located on the leading end side of the cylinder portion and capable of making contact with at least part of the coil portion (13a) of the pawl spring (13).
  4. The vehicle door lock device according to claim 3, further comprising:

a connecting member for connecting the latch housing to the lock housing at the location of the center line of the second cylinder portion,

wherein the lock-side axial support portion (23a) supports the open lever (21) rotatably on the outer circumferential surface of the cylinder portion.


  5. The vehicle door lock device according to any of claims 1 to 4,
wherein the open lever spring (22) includes one end portion that extends from one end of the coil portion and fits with the open lever (21), and the other end portion that extends from the other end of the coil portion and fits with a locking portion provided in the lock housing of the lock mechanism (20); and
the open lever (21) is disposed between the lock housing and the open lever spring (22).
  6. A vehicle door lock device according to claim 1, wherein
the latch (11) is adapted to engage with or disengage from a striker assembled in a body of a vehicle when a door of the vehicle is opened and closed, the pawl (12) is adapted to hold or release the engagement of the latch (11) with the striker,
the latch housing (15)accommodates the latch (11) and the pawl (12), the pawl spring (13) has a coil portion for biasing the pawl (12), and the latch-side axial support portion (15a) is provided in the latch housing so as to protrude toward the inner circumferential side of the coil portion (13a) of the pawl spring (13) for rotatably supporting the coil portion (13a) of the pawl spring (13); and
the open lever spring (22) has a coil portion for biasing the open lever (21), the lock housing accommodates the open lever (21) and the open lever spring (22), and the lock-side axial support portion (23) is provided in the lock housing so as to protrude toward the inner circumferential side of the coil portion (22a) of the open lever spring (22) for rotatably supporting the coil portion (22a) of the open lever spring (22), the lock mechanism being assembled to the latch mechanism (10),
wherein the latch-side axial support portion (15) has an opposing surface formed so as to oppose a leading end surface of the lock-side axial support portion (23); and
the opposing surface includes a latch-side contact surface that makes contact with the leading end surface of the lock-side axial support portion (23), and a latch-side non-contact surface formed outward in the radial direction of the latch-side axial support portion (15) from the latch-side contact surface without making contact with the leading end surface of the lock-side axial support portion (23).
  7. The vehicle door lock device according to claim 6,
wherein the leading end surface of the lock-side axial support portion (23) includes a lock-side contact surface that makes contact with the latch-side contact surface, and a lock-side non-contact surface formed outward in the radial direction of the lock-side axial support portion (23) from the lock-side contact surface without making contact with the latch-side contact surface.
  8. The vehicle door lock device according to any one of claim 6 and 7,
wherein the latch-side axial support portion (15a) and the lock-side axial support portion (23) are disposed eccentrically relative to each other while being opposed to each other.
  9. The vehicle door lock device according to any one of claims 6 to 8,
wherein the latch-side axial support portion (15a) includes a first cylinder portion having a side surface contacted with the inner circumferential surface of a coil portion of the pawl spring (13) and the opposing surface, and a second cylinder portion formed so as to protrude from the opposing surface and having a smaller external diameter than the external diameter of the first cylinder portion;
the lock-side axial support portion (23) includes a cylinder portion formed so as to protrude from the lock housing, the cylinder portion having side surface contacted with the inner circumferential surface of the coil portion of the open lever spring (22) and a leading end which is opened, and disposed coaxially with the second cylinder portion; and
the second cylinder portion is inserted into the inside of the cylinder portion from the leading end of the cylinder portion.
  10. The vehicle door lock device according to claim 9,
wherein the base end of the cylinder portion is open;
a linking member is inserted toward the inside of the second cylinder portion from the open base end of the cylinder portion; and
the latch housing (15) and the lock housing are linked by the linking member.
  11. The vehicle door lock device according to claim 10,
wherein the lock-side axial support portion (23) supports the open lever (21) in a freely-rotatable state on the outer circumferential surface of the cylinder portion.