JP3642959B2 - Sensor switch mounting structure of door lock unit - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a sensor switch mounting structure for a door lock unit.
[0002]
[Prior art]
A door lock unit is provided on the slide door on the side of the automobile and the back door on the rear, and the door is closed by engaging with a striker provided on the vehicle body side. (See Japanese Utility Model Publication No. 5-78855 as a similar technique). In the development of this type of door lock unit, there is a demand to add and install new parts on the outer surface while maintaining the existing structure of the door lock unit itself.
[0003]
[Problems to be solved by the invention]
However, since many parts are assembled in the door lock unit, it is difficult to add a new part to the outer surface of the door lock unit because the area to be attached is small. Especially in the case of a door lock unit used in a door closure device that automatically closes completely by the driving force of the motor after closing the door halfway, the number of parts is particularly large, and new parts are added to the outer surface. It is extremely difficult to add. Moreover, it is even more difficult when the component to be added is a sensor switch that requires strict positional accuracy.
[0004]
The present invention has been made paying attention to such a conventional technique, and provides an attachment structure capable of reliably adding a sensor switch to the outer surface of a door lock unit.
[0005]
[Means for Solving the Problems]
The invention according to claim 1 is a sensor switch mounting structure of a door lock unit in which a bracket is attached to an outer surface of a door lock unit to which various parts are assembled, and a sensor switch is attached to the upper surface of the bracket. A locating pin protrudes from the outer surface, and two parallel cylindrical portions opened toward the locating pin side and one mounting hole are formed on both sides of the locating pin, and the locating pin is mounted on the bracket. In addition to forming a locating hole to be inserted, two insertion legs inserted into the cylindrical part at both ends, and one fastening leg to be fastened by a fastening part to the mounting hole, Among the insertion legs, both side ends of at least one insertion leg are in contact with the inner walls on both sides of the corresponding cylinder.
[0006]
According to the first aspect of the present invention, since the bracket has three attachment points, the attachment point can be secured even on the outer surface of the door lock unit with a small attachment area. Of the three attachment points, two points are inserted and only one point is fastened, so attachment work is easy. In addition, since the locating pin is inserted into the locating hole of the bracket, and both end portions of at least one insertion leg portion are in contact with the inner walls on both sides of the corresponding cylindrical portion, Positioning is performed in the longitudinal direction and the rotational direction.
[0007]
In the invention according to claim 2, the harness of the sensor switch is routed on the upper surface of the bracket and led out of the bracket.
[0008]
According to the second aspect of the present invention, since the harness of the sensor switch is routed to the upper surface of the bracket and guided to the outside of the bracket, even if a part of the component protrudes from the outer surface during the operation of the door lock unit. Can protect the harness.
[0009]
In the invention according to claim 3, the harness holder is fastened together with the fastening component.
[0010]
According to the invention described in claim 3, since the harness holder is fastened together with the fastening component, the path of the harness guided to the outside of the bracket can be regulated.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a preferred embodiment of the present invention will be described with reference to the drawings. This embodiment relates to a door lock unit used in a door closure device built in a slide door in a wagon car.
[0012]
FIG. 1 shows an external view of the sliding door 1. The slide door 1 opens and closes along the front-rear direction, moves toward the vehicle interior just before closing, and engages with a striker 2 provided on the vehicle body.
[0013]
As shown in FIG. 2, a door closure device 6 having a structure in which a drive unit 3 and a door lock unit 4 are connected by a wire 5 is installed inside the slide door 1. In the drive unit 3, the pinion gear 8 rotated by the motor 7 is engaged with the rack gear 9, and the rack gear 9 is rotated in a decelerated state. Brackets 10 spaced apart from each other by a predetermined interval are fixed to the rack gear 9, and T-shaped head pins 12 of the wires 5 are engaged in notches 11 formed at positions corresponding to the bracket 10 and the rack gear 9, respectively. ing. One end of the wire 5 extending from the drive unit 3 to the door lock unit 4 is covered with an outer tube 17 fixed to the base 3 a of the drive unit 3.
[0014]
Next, the basic structure of the door lock unit 4 will be described. The door lock unit 4 is provided with a latch plate 13 (see FIG. 4) that engages with the striker 2 so as to be rotatable. A close lever 14 is provided at a position adjacent to the latch plate 13 so as to be movable up and down. Yes. A clevis 15 having a U-shaped cross section is attached to the lower end of the close lever 14, and a ball 16 provided at the other end of the wire 5 led downward with respect to the clevis 15 is engaged.
[0015]
Accordingly, when the slide door 1 is closed, the striker 2 enters the engagement groove 18 of the latch plate 13 to bring the latch plate 13 into a half latch position where the latch plate 13 is slightly rotated. When the latch plate 13 reaches the half latch position, the sensor switch 19 detects the state and rotates the motor 7 of the drive unit 3 to pull the wire 5. When the wire 5 is pulled, the close lever 14 connected via the clevis 15 is lifted, and the latch plate 13 is in the corresponding position as the upper end 14a of the close lever 14 is rotated to the half latch position. Engage with the joint 20 (see FIG. 4), and the latch plate 13 is further rotated to the full latch position.
[0016]
Next, a mounting structure of the sensor switch 19 that detects the half latch position of the latch plate 13 will be described. The sensor switch 19 is attached to the outer surface formed by the base 22 and the body 23 via the bracket 21. On the outer surface of the door lock unit 4, a locating pin 24 (see FIG. 7) is projected. Then, two parallel cylindrical portions 25 opened toward the locate pin 24 side and one attachment hole 26 are formed at both side positions sandwiching the locate pin 24.
[0017]
On the other hand, the bracket 21 is formed with a locating hole 27 into which the locating pin 24 is inserted, and at both ends, with respect to the two insertion leg portions 28 inserted into the cylindrical portion 25 and the mounting hole 26. One fastening leg 30 to be fastened by a screw (or a clip) 29 as a fastening part is formed. The width of the insertion leg portion 28 and the inner width of the tube portion 25 are substantially matched.
[0018]
The sensor switch 19 is attached to the upper surface of the bracket 21 in advance, and the two insertion leg portions 28 of the bracket 21 to which the sensor switch 19 is attached are first inserted into the corresponding cylinder portions 25. The insertion leg portion 28 can move in the insertion direction in the cylindrical portion 25, but the side ends of the insertion leg portion 28 are in contact with the inner walls on both sides of the cylindrical portion 25, so that they are displaced in the orthogonal direction. I can't.
[0019]
Then, after inserting the insertion leg portion 28 into the cylindrical portion 25, the locating pin 24 is inserted into the locating hole 27. Finally, the fastening leg portion 30 of the bracket 21 is fastened to the mounting hole 26 with the screw 29 in a state where the ring-shaped holding tool 32 through the harness 31 is fastened together. By passing the holder 32, the harness 31 is arranged on the upper surface of the bracket 21. Therefore, the harness 31 can be protected even if a part of another part protrudes from the outer surface during the operation of the door lock unit 4.
[0020]
According to this embodiment, since the attachment points of the bracket 21 are three points of the two insertion leg portions 28 and the one fastening leg portion 30, the attachment points are also secured on the outer surface of the door lock unit 4 with a narrow attachment area. can do. Of the three attachment points, only two points are inserted, and only one point is fastened with the screw 29, so attachment work is easy. Moreover, since the locating pin 24 is inserted into the locating hole 27 of the bracket 21 and both side ends of the insertion leg portion 28 are in contact with the inner walls on both sides of the corresponding cylindrical portion 25, The bracket 21 is positioned in the longitudinal direction and the rotational direction. Therefore, the present invention can also be applied to the mounting of the sensor switch 19 that requires accurate position accuracy.
[0021]
In the above description, the slide door 1 is taken as an example of the door on which the door closure device is mounted. it can.
[0022]
【The invention's effect】
According to the first aspect of the present invention, since the bracket has three attachment points, the attachment point can be secured even on the outer surface of the door lock unit with a small attachment area. Of the three attachment points, two points are inserted and only one point is fastened, so attachment work is easy. In addition, since the locating pin is inserted into the locating hole of the bracket, and both end portions of at least one insertion leg portion are in contact with the inner walls on both sides of the corresponding cylindrical portion, Positioning is performed in the longitudinal direction and the rotational direction.
[0023]
According to the second aspect of the present invention, since the harness of the sensor switch is routed to the upper surface of the bracket and led out of the bracket, even if a part of the component protrudes from the outer surface during the operation of the door lock unit. Can protect the harness.
[0024]
According to the invention described in claim 3, since the harness holder is fastened together with the fastening component, the path of the harness guided to the outside of the bracket can be regulated.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an automobile in which a door closure device according to an embodiment of the present invention is mounted on a door.
FIG. 2 is a side view showing a drive unit and a door lock unit of the door closure device.
FIG. 3 is a side view seen from the direction of the arrow DA in FIG.
4 is a schematic side view showing the internal structure of FIG. 3;
5 is a side view as seen from the direction indicated by the arrow DB in FIG. 2. FIG.
6 is a cross-sectional view taken along the line SA-SA in FIG.
7 is a cross-sectional view taken along line SB-SB in FIG.
[Explanation of symbols]
4 Door lock unit 19 Sensor switch 21 Bracket 24 Locating pin 25 Tube part 26 Mounting hole 27 Locating hole 28 Inserting leg part 29 Screw (fastening part)
30 Fastening leg 31 Harness 32 Holder

Claims (3)

A sensor switch mounting structure of a door lock unit in which a bracket is attached to the outer surface of a door lock unit to which various parts are assembled, and a sensor switch is attached to the upper surface of the bracket,
On the outer surface of the door lock unit, a locating pin is projected, and at both positions sandwiching the locating pin, two parallel cylindrical portions opened toward the locating pin side and one mounting hole are formed,
A locating hole into which the locating pin is inserted is formed in the bracket, two insertion leg portions inserted into the cylindrical portion at both ends, and one fastening leg portion fastened to the mounting hole by a fastening component Form the
A sensor switch mounting structure for a door lock unit, characterized in that at least one of the two insertion legs is in contact with the inner walls on both sides of the corresponding cylinder. . A sensor switch mounting structure for a door lock unit according to claim 1,
A sensor switch mounting structure for a door lock unit, wherein the sensor switch harness is routed to the upper surface of the bracket and led to the outside of the bracket. A sensor switch mounting structure for a door lock unit according to claim 1 or 2,
A sensor switch mounting structure for a door lock unit, wherein a harness holder is fastened together with a fastening part.

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