JP2739679B2 - Torque transmission device in auto-closed door lock - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a torque transmitting device for an automatic closing door lock.

[0002]

2. Description of the Related Art A latch mounted on a door which rotates by engaging with a striker mounted on a vehicle body, a motor which is energized when the latch rotates to a half lock position, and which is rotated by energizing the motor 2. Description of the Related Art An automatic closing door lock including a gear that is rotated by a gear and a wire winding lever that rotates the latch at the half lock position to a full lock position by rotating the gear is known.

[0003]

When the above-mentioned known auto-closing has a structure in which a sliding lever is rotated by a gear and a guide cover for winding a wire by the sliding lever is rotated, the gear and the sliding lever are rotated. Between the sliding lever and the guide cover, the pins are engaged with each other. However, since forces in opposite directions are applied to both engaging surfaces, squeezing occurs and does not operate smoothly.

[0004]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a striker 1 attached to a vehicle body, a latch 4 which is engaged with the striker 1 attached to a door and rotates.
A motor 28 energized when the latch 4 rotates to the half-lock position, a gear 24 fixed to a shaft 23 rotated by energizing the motor 28, and slidably with respect to the shaft 23. A slide which engages with an engaging groove 29 formed in the gear 24 so as to be freely detachable via a roller 30 and rotates with the gear 24 when the roller 30 is engaged with the engaging groove 29. The moving lever 31 and the shaft 2
When the roller 34 provided on the slide lever 31 fixed to the shaft 3 engages with the slit 36 and the slide lever 31 rotates, the guide cover 35 that rotates together with the slide lever 31 and winds the wire 20 is provided. In the auto-close door lock, the roller 30 engaging with the engaging groove 29 and the roller 34 engaging with the slit 36 are separately and independently attached to a pin 33 attached to the sliding lever 31. This is a rotational force transmitting device. Further, in the present invention, in the above, a pin 33 projecting in the same manner in both up and down directions is fixed to the sliding lever 31, and the rollers 30 and 34 are separately and independently fitted on the upper and lower sides of the pin 33, This is a rotating force transmitting device in an auto-close door lock in which the head of the pin 33 is fixed by caulking.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to the drawings.
In FIG. 1, reference numeral 1 denotes a striker attached to a vehicle body, 2 denotes a lock body attached to a door side, and a recess 3 is formed on the front side of the lock body 2; The latch 4 which rotates by engaging with the shaft 5 is mounted on the shaft 5. Reference numeral 6 denotes a groove for the striker 1 provided in the lock body 2. The latch 4 has an engagement groove 7 with which the striker 1 is engaged, a half engagement step 8, a full engagement step 9, and an engagement protrusion 10 on the outer peripheral surface. Reference numeral 11 denotes a ratchet that engages with the engaging step portions 8 and 9 to prevent the latch 4 from rotating in the reverse direction. As shown in FIG.
On the back side of the lock main body 2, a wire engagement rotating body 13 that is pivotally attached to the lock main body 2 by a shaft 12 is provided.
The shaft 12 protrudes to the front side (front side) of the lock body 2 and fixes the base of the arm 14 as shown in FIG. The wire engagement rotating body 13, the shaft 12, and the arm 14
When the wire engagement rotating body 13 rotates, the arm 14 rotates via the shaft 12. Reference numeral 15 denotes a pressing lever which is pivotally attached to the tip of the arm 14 with a pin 16, and a roller 18 is attached to the tip of the pressing lever 15 by a pin 17. Reference numeral 19 denotes a guide groove into which the pin 17 is fitted and guided, and is overlapped with the engaging projection 10.

That is, when the wire engagement rotating body 13 rotates, the arm 14 rotates through the shaft 12,
When the arm 14 rotates a, the pressing lever 15 rotates through the pin 16, and the roller 18 at the tip of the pressing lever 15 is moved by the pin 17 into the guide groove 1.
The latch 4 is fully locked by rotating the latch 4 by being guided by the guide 9 and colliding with the engaging projection 10.

[0007] As shown in FIG.
A wire 20 is attached to 3. Reference numeral 21 denotes a winding mechanism for the wire 20 mounted on the door side. A gear 24 is pivotally mounted on a shaft 23 at an intermediate position of the base plate 22. The gear 24 only needs to be approximately 1/2 circumference, and a rack 25 is formed on the outer peripheral surface thereof. Reference numeral 26 denotes a drive gear engaged with the rack 25, and a shaft 27 of the drive gear 26 is connected to a motor 28. As shown in FIG. 3, an engagement groove 29 is formed at the end of the rack 25 of the gear 24, and a strip-shaped slide lever having a roller 30 which engages with the engagement groove 29 as shown in FIG. A long hole 32 in the middle of 31 is slidably fitted to the shaft 23.

The roller 30 provided on the sliding lever 31 is shown in FIG.
As shown in FIG.
, And the roller 30 is fixed to one of the pins 33, while the roller 34 is fixed to the other of the pins 33, and the roller 34 is engaged with the slit 36 of the guide cover 35. The guide cover 35 is also in the shape of a strip, and has an intermediate position in the length direction fixed to the shaft 23.

On the opposite side of the roller 30 of the sliding lever 31,
A protruding portion 37 protruding outward from the outer periphery of the gear 24 and the guide cover 35 is provided, and a pin 38 protruding in a direction parallel to the shaft 23 is fixed to the protruding portion 37. When the pin 38 is hit in the direction of arrow c, the sliding lever 31 is guided by the long hole 32 and is pushed to the other side to slide, and the roller 30 which has been fitted in the engaging groove 29 until then is engaged. Remove from mating groove 29. After the rollers 30 and 34 are fitted to the pins 33 as shown in FIG. 8, the washers 39 and 40 are fitted, and the head of the pins 33 is hit and swaged.

The guide cover 35 is provided with a protrusion 41 protruding laterally, the slide lever 31 is also provided with a protrusion 42 protruding laterally, and a spring 43 is hung between the protrusions 41, 42, The sliding lever 31 is always urged in the direction opposite to the direction c. 4
Reference numeral 4 denotes an engagement portion of the wire 20 formed on the guide cover 35.

That is, when the motor 28 is energized,
The drive gear 26 rotates, and the gear 24 meshing with the drive gear 26 is turned clockwise d, and the sliding lever 3 engaged with the engagement groove 29 of the gear 24
The guide cover 35 is rotated by the other roller 34 of the pin 33 through the slit 36, and the wire 20 engaged with the guide cover 35 is wound and pulled. The latching member 13 is fully locked by rotating the joint rotating body 13.

Reference numeral 45 denotes a release lever for hitting the head of the pin 38 to disengage the roller 30 engaged with the engagement groove 29 from the engagement groove 29. The release lever 45 is a side part of the gear 24. An intermediate position in the longitudinal direction is axially attached to the base plate 22 by a shaft 46 parallel to the shaft 23 provided at the position. The release lever 45 is provided on one side of the shaft 46 with the gear 2.
The operating portion 48 is formed on a pressing portion 47 of an arc concentric with the arc 4, and the other side of the shaft 46 of the release lever 45 serves as an operating portion 48. A rod 50 connected to an inner handle 49 is connected to the tip of the operating portion 48.

The wire 20 comprises an outer casing 51 and an inner cable 52. Reference numeral 53 denotes a fixing portion of the outer casing 51.
2 is fixed to the base plate 22 so as to be adjustable in the extension direction. 54 is an adjusting groove long in the direction of extension of the cable 52;
Is an adjusting screw.

[0014]

Next, the operation will be described. The sliding lever 31 is urged in the anti-c direction by the elasticity of the spring 43, and the roller 30
4, the roller 34 engages with the slit 36 of the guide cover 35, and the pin 38 projects to the opposite side of the roller 30. Therefore, before the door 38 is closed,
When the fixing screw 53 is adjusted by loosening the adjusting screw 55 in this state, the outer casing 51 and the inner cable 52 are adjusted and tensioned.

When the door is closed, the latch 4 of the lock body 2 on the door side engages with the striker 1 on the vehicle body side, and the latch 4 rotates to the half-lock state. This rotation is detected by a detector provided at a desired position as is well known, and the motor 28 is energized to rotate the gear 24 clockwise by the drive gear 26.

When the gear 24 is rotated clockwise d, the sliding lever 31 is rotated clockwise d via the roller 30 engaged with the engaging groove 29 of the gear 24, and when the sliding lever 31 is clockwise rotated d, Roller 34 opposite to roller 30 provided on sliding lever 31
, The guide cover 35 is rotated clockwise d, the wire 20 engaged with the guide cover 35 is wound and pulled, and the wire 20 rotates the wire engagement rotating body 13 with the wire 20.

When the wire engagement rotating body 13 rotates a,
The arm 14 rotates via the shaft 12, and the roller 1 at the tip of the pressing lever 15 fixed to the tip of the arm 14
The roller 8 is moved to the left in FIG. 1, and the roller 18 comes into contact with the projection 10 of the latch 4 and is fully locked. In FIG.
e is a standby position, f is a half lock position, and g is a full lock position.

When a finger or clothing is pinched to the door during this operation, when the handle 49 is opened, the release lever 45 is rotated counterclockwise through the rod 50 in FIG. Slide the sliding lever 31 in the direction c,
The roller 30 of the sliding lever 31 is disengaged from the engaging groove 29 of the gear 24 to release the automatic lock.
And a roller 34 that engages with the slit 36 of the guide cover 35
Since they are separately formed, they rotate differently on different sliding surfaces, so that they work smoothly.

[0019]

The structure of the known automatic closer is as follows:
When the sliding lever is rotated by a gear rotating with a motor, and the guide cover for winding the wire is rotated by the rotating sliding lever, the portion h in FIG. The part i of FIG. 4 abuts between the moving lever and the guide cover, and the positions of the two engaging surfaces are opposite, so that the forces in the opposite directions are applied, and the rotation is reversed, so that squeezing occurs and the device operates smoothly. do not do. However, the present invention relates to a striker 1 attached to a vehicle body, a latch 4 which rotates by engaging with the striker 1 attached to a door side, and a motor which is energized when the latch 4 rotates to a half-lock position. 28,
A gear 24 is fixed to a shaft 23 that is rotated by being energized by the motor 28. A roller 30 is slidably engaged with the shaft 23 and a roller 30 is engaged with an engagement groove 29 formed in the gear 24. When the roller 30 is engaged with the engaging groove 29, the sliding lever 31 rotates together with the gear 24, and the sliding lever 31 is secured to the shaft 23. When the roller 34 provided on the sliding lever 31 is rotated by the engagement of the roller 34 with the slit 36,
Guide cover 3 that rotates together with 1 and winds wire 20
5, the roller 30 engaging the engaging groove 29 and the roller 34 engaging the slit 36 are auto-closed separately and independently mounted on a pin 33 mounted on the sliding lever 31. Since the rotation force transmission device in the ALOCK is used, a roller 30 is engaged between the engagement groove 29 and the sliding lever 31 and a roller 34 is engaged between the sliding lever 31 and the guide cover 35. Therefore, even if the force in the opposite direction acts and the rotation is reversed, no creaking occurs. Further, the present invention provides the above-mentioned device,
A pin 33 projecting in the same direction in both the upper and lower directions is fixed to the sliding lever 31, and the rollers 30 and 34 are separately and independently fitted above and below the pin 33, and the head of the pin 33 is swaged. Since the rotation force transmission device is used in an auto-closed door lock that is fixed by
The pin 33 is fixed by any means, and the roller 30 and the roller 34 are separately and separately fitted at positions protruding above and below the pin 33, and then the head of the pin 33 is hit and swaged. Can be easily manufactured.

[Brief description of the drawings]

FIG. 1 is a front view of a lock device of an automatic closer.

FIG. 2 is a side view of a main part of the present invention.

FIG. 3 is a side view of a gear.

FIG. 4 is a side view of a guide cover and a sliding lever.

FIG. 5 is a sectional view of a guide cover and a sliding lever.

FIG. 6 is an explanatory diagram of an operation.

FIG. 7 is an enlarged view of a main part.

FIG. 8 is an exploded perspective view of a main part.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Striker, 2 ... Lock body, 3 ... Recess, 4 ... Latch, 5 ... Shaft, 6 ... Entry groove, 7 ... Engagement groove, 8 ... Half engagement step, 9 ... Full engagement step, 10 ... Engagement protrusion, 11: ratchet, 12: shaft, 13: wire engagement rotating body, 14
... arm, 15 ... press lever, 16 ... pin, 17 ... pin, 18 ... roller, 19 ... guide groove, 20 ... wire,
Reference numeral 21: winding mechanism, 22: base plate, 23: shaft, 24: gear, 25: rack, 26: drive gear, 27: shaft, 28 ...
Motor, 29: engagement groove, 30: roller, 31: sliding lever, 32: elongated hole, 33: pin, 34: roller, 35: guide cover, 36: slit, 37: protrusion, 38: pin,
39, 40: Washer, 41, 42: Projection, 43: Spring, 43: Handle, 44: Wire engaging part, 45: Release lever, 46: Shaft, 47: Pressing part, 48: Operating part, 4
Reference numeral 9: handle, 50: rod, 51: outer casing, 52: inner cable, 53: fixing portion, 54: adjusting groove, 55: adjusting screw.

Claims (2)

(57) [Claims] 1. A striker 1 mounted on a vehicle body side.
A latch 4 that rotates by engaging with the striker 1 attached to the door side; a motor 28 that is energized when the latch 4 rotates to a half-lock position;
The gear 24 is slidably engaged with the shaft 23 and is slidably engaged with the shaft 23 through a roller 30. When the roller 30 is engaged with the engaging groove 29 so as to be freely detachable, the sliding lever 31 rotates together with the gear 24, and the sliding lever 31 is stopped by the shaft 23.
And a guide cover 35 that rotates together with the slide lever 31 and winds the wire 20 when the roller 34 provided in the groove 34 engages with the slit 36 and the slide lever 31 rotates. The roller 30 that engages with the slits 36 and the roller 34 that engages with the slit 36 are separately and independently attached to the pins 33 attached to the sliding lever 31, respectively. 2. The sliding lever 31 according to claim 1,
The pin 33 which projects in the same direction in both the upper and lower directions is fixed, and the roller 30 and the roller 34 are separately and independently fitted above and below the pin 33, and the head of the pin 33 is fixed by caulking. Torque transmission device in Aloc.