JP3985455B2 - Door lock mounting structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an attachment structure for a door lock portion that protects a key cylinder attached to a door of a vehicle.
[0002]
[Prior art]
A vehicle such as an automobile is provided with a key cylinder for locking the door. The front door of an automobile has a key cylinder key slot on the outer panel located on the outside of the vehicle body, and the key cylinder body on the inner side of the outer panel and inner panel. Is done. In addition to the key cylinder, a door latch that substantially locks the door frame is provided at the lower part of the key cylinder. Among these, the upper part of the protector was fixed with a bolt through an outer hole that reinforces the door or an attachment hole provided in the inner panel, and the lower part of the protector was also fixed to the door component with a bolt.
[0003]
[Problems to be solved by the invention]
The protector is formed in a shape that protects the key rod that connects the key cylinder and the door latch, and prevents the lock from being released from the outside. Therefore, it is necessary to form a fastening portion with a bolt or the like and securely fix it. In addition, since a door latch is provided at the lower part of the protector, if the lower part of the protector is fastened with a bolt, the bolt and the tool for fastening the bolt may interfere with the key rod, the door latch, etc. If this is avoided, the shape of the protector becomes complicated, it is difficult to manufacture and assemble the protector, and there is a problem that the range for protecting the key rod is reduced.
The present invention has been made in view of the above problems, and an object of the present invention is to provide a door lock portion mounting structure that can be easily mounted without making the protector complicated.
[0004]
[Means for Solving the Problems]
In order to achieve the above object, the door lock portion mounting structure of the present invention has a key cylinder having one end provided on the outer panel of the door and the other end disposed inside the door, and a space below the key cylinder. A door latch attached to the inner panel, a key rod for connecting the key cylinder and the door latch, an upper part on the other end side of the key cylinder and a lower part on the protector that covers the key rod, and a latch cover that covers the door latch In the door lock portion mounting structure, the protector is formed in a box shape having an opening, and the protector is attached so that the opening faces the outer panel side in the mounted state, and the upper portion of the protector Is provided with a mounting piece that is fixed to the inner panel, and protrudes downward from the lower part of the protector. An engaging portion extending to overlap with the upper portion of the latch cover is provided, the latch cover is provided with a locking portion, and the upper side of the protector is located on the inner panel side through the mounting piece. On the other hand, the lower side of the protector is fixed by locking the engaging portion of the protector to the locking portion of the latch cover.
In the above invention, a hole is provided as the engaging portion of the protector, while a protrusion is provided as the locking portion of the latch cover, a locking groove is provided in a body portion of the protrusion, the hole is inserted into the protrusion, The engaging portion is locked to the locking portion by fitting the locking groove to the edge of the hole of the protector.
In the above invention, the locking groove extends downward from the upper surface of the body portion of the protrusion.
Further, in the above invention, the lower end portion of the protector is provided with a hooking portion as the engaging portion, the latch cover is provided with a locking hole as a locking portion, and the hooking portion is The engaging portion is locked to the locking portion by being inserted into the locking hole.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a door lock portion mounting structure according to an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a view of a side portion of an automobile, FIG. 2 is a view of a key cylinder disposed on the door as seen from the outside of the passenger compartment, and FIG. 3 is a view of the key cylinder and latch on the passenger compartment side. 4 is an exploded perspective view as seen from FIG. 4, and FIG. 4 is a perspective view of the assembled state.
A key cylinder 4 for locking the doors 2 and 3 is attached to a front door 2 disposed on the left and right side surfaces of the automobile 1 and a back door 3 disposed on the rear side. FIG. 2 shows the left front door 2 among them. The front door 2 is provided with a key cylinder 4 and an outside handle 5 that opens and closes the front door 2. The key cylinder 4 is attached together with the outside handle 5 through an opening formed on the outer panel 6 side of the front door 2, and a key insertion port 7 of the key cylinder 4 is provided outside the vehicle body. Arranged inside the front door 2.
[0006]
As shown in FIG. 3, a panel-shaped outer reinforcement 9 is provided at the upper part of the key cylinder 4 and the outside handle 5 along the lower part of the window frame. The outer reinforcement 9 is disposed on the indoor side of the outer panel 6 with its longitudinal direction oriented horizontally. A door latch 10 is provided below the key cylinder 4 so as to be spaced from the key cylinder 4. The door latch 10 plays a role of fixing the front door 2 via a striker (not shown). An axial key rod 11 is provided between the key cylinder 4 and the door latch 10. The key rod 11 extends in the vertical direction, and has an upper end connected to the key cylinder 4 and a lower end connected to the door latch 10. The key rod 11 plays a role of transmitting the operating force input by the key operation of the key cylinder 4 to the door latch 10. The door latch 10 is attached to the inner panel 12 of the front door 2.
[0007]
As shown in FIG. 4, the body 8 and the key rod 11 of the key cylinder 4 are covered with a protector 13, and the door latch 10 is covered with a latch cover 14. The protector 13 has a substantially inverted triangular box shape whose upper part is wide and the width becomes narrower toward the lower part, and the opening is directed to the outer panel 6 side in the attached state, and the upper part covers the key cylinder 4. The lower part covers the key rod 11. As shown in FIG. 5, a screw hole 9a is formed in an inclined surface 9b whose upper part is inclined toward the passenger compartment side IN (OUT indicates the outside of the vehicle) at the lower part of the outer reinforcement 9, as shown in FIG. The inner panel 12 located on the rear side of the front door 2 is provided with screw holes 12a, and these screw holes 9a and 12a are arranged at positions almost opposite to each other with the key cylinder 4 in the center. .
[0008]
A mounting piece 13a that protrudes forward is provided on the front side of the upper body of the protector 13. A screw insertion hole 13b is formed in the mounting piece 13a, and is formed on the side wall of the protector 13 that is also located on the rear side of the upper body. Is provided with a screw insertion hole 13c. The upper part of the protector 13 is fixed to the vehicle body side by fastening bolts 15 and 16 to the screw holes 9a and 12a and the screw insertion holes 13b and 13c.
The lower part of the protector 13 shown in FIGS. 7 to 9 is provided with an engaging part 17 projecting downward, and the engaging part 17 extends so as to overlap with the upper part of the latch cover 14 of the door latch 10 and has a transverse section. Is formed in an L shape. On the surface of the engagement portion 17 that is directed in the vehicle width direction, a rectangular engagement hole 17a that is a through hole is formed.
[0009]
As shown in FIGS. 3 and 4, the door latch 10 is provided with a latch cover 14. As shown in FIG. 8, a locking portion 19 is provided at the upper end portion of the latch cover 14. The locking portion 19 has a protrusion 20 protruding forward in the horizontal direction on the front side of the surface 19a facing in the vehicle width direction, corresponding to the engaging portion 17. A square pyramid trapezoidal guide portion 20 a formed by an inclined surface narrowed in the vehicle width direction and the vertical direction is formed at the tip of the protrusion 20. A locking groove 20b extending upward from the bottom surface of the protrusion is formed at the bottom of the body 20c of the protrusion 20. The protrusion 20 is formed so as to correspond to the position corresponding to the engagement hole 17a of the protector 13 and the shape thereof, and the protrusion 20 has a rectangular cross section.
[0010]
In order to attach the protector 13 to the vehicle side, the door cylinder 10 to which the key cylinder 4 and the latch cover 14 are attached is attached to the front door 2 in advance. Then, the engaging hole 17 a of the protector 13 is passed through the protrusion 20 of the latch cover 14. At this time, the inclined surface of the guide portion 20 a easily guides the engagement hole 17 a to the trunk portion 20 c located on the proximal end side of the protrusion 20. Next, as shown in FIG. 9, the protector 13 is moved upward, and the lower edge portion of the rectangular engagement hole 17 a is inserted into the engagement groove 20 b and locked. Next, the bolts 15 and 16 are screwed into the screw holes 9a and 12a. At this time, the engagement hole 17a functions to position when the bolts 15 and 16 are fastened. Thus, the protector 13 is fastened by the bolts 15 and 16 on the upper side, and is fixed by assembling the engaging hole 17a in the locking groove 20b of the protrusion 20 on the lower side. The depth of the locking groove 20b may be a depth that prevents the engagement hole 17a from coming out of the locking groove 20b after the protector 13 is tightened with the bolts 15 and 16. In addition, by making the widths of the engagement holes 17a and the protrusions 20 coincide, the movement of the engagement portions 17 in the width direction is restricted, and by matching the plate thickness of the engagement portions 17 and the thickness of the locking grooves 20b. The movement of the engaging portion 17 in the front-rear direction can be restricted.
Thus, according to the present embodiment, when the lower end portion of the protector 13 is fixed to the latch cover 14, no bolt is used, so that the engaging portion of the protector 13 does not interfere with the bolt and the key rod 11. 17 can be easily fixed to the locking portion 19.
[0011]
Although the embodiments of the present invention have been described above, the present invention is of course not limited thereto, and various modifications and changes can be made based on the technical idea of the present invention.
For example, in the above-described embodiment, the locking groove 20b of the protrusion 20 extends upward from the bottom of the body portion 20c. However, as shown in FIG. 10 as a first modification, the locking groove 20b is formed on the body portion 20c. It may extend downward from the upper surface, and the shape of the tip of the projection 20 is a square trapezoid, but may be other polygonal or polygonal trapezoids, and as a second modification, FIG. Like the projection 21 shown, the tip portion may be formed in a conical shape or a truncated cone shape 21a, and the longitudinal section of the body portion 21b may be formed in a circular shape. In this case, the shape of the engagement hole 17a may be square or circular.
[0012]
FIG. 12 shows a third modification in which an engaging portion 23 of the protector 13 is formed with a hook portion 23a having a substantially crank-shaped cross section with a tip protruding upward toward the latch cover 14 side. A square-shaped locking hole 24a is formed on the stop portion 24 side. The engaging portion 23 is locked to the locking portion 24 so that the upper edge portion of the locking hole 24a of the latch cover 14 is inserted between the back surface 23b of the protector 13 and the hooking portion 23a. Even if it forms in this way, the lower part of the protector 13 can be easily fixed to the latching | locking part 24 side like the said embodiment.
[0013]
【The invention's effect】
As described above, according to the present invention, the key cylinder having one end provided on the outer panel of the door and the other end disposed in the door, and the lower portion of the key cylinder are spaced from each other and attached to the inner panel. A door lock portion comprising: a door latch; a key rod for connecting the key cylinder and the door latch; an upper portion on the other end side of the key cylinder and a lower portion on a protector that covers the key rod; and a latch cover that covers the door latch. In the mounting structure, the protector is formed in a box shape having an opening, and the protector is attached so that the opening is directed to the outer panel side, and the protector is mounted on the inner panel side on the upper part of the protector. A fixing piece for fixing is provided, and the lower part of the protector protrudes downward and the upper part of the latch cover An engaging portion extending so as to overlap is provided, a latching portion is provided on the latch cover, and the upper side of the protector is fastened to the inner panel side via the mounting piece, Since the lower part of the protector is fixed by engaging the engaging part of the protector with the engaging part of the latch cover, it is possible to reduce the fastening part by a bolt or the like of the protector 5, and Positioning is now possible.
In the above invention, a hole is provided as the engaging portion of the protector, while a protrusion is provided as the locking portion of the latch cover, a locking groove is provided in a body portion of the protrusion, the hole is inserted into the protrusion, By fitting the locking groove to the edge of the hole of the protector, the engaging portion is locked to the locking portion, so that the assemblability can be improved with simple processing. It became so.
Moreover, since the said locking groove is extended below from the upper surface of the trunk | drum of the said protrusion, since the protrusion is reliably latched by the locking groove , the said invention WHEREIN: Can be prevented from coming off.
In the above invention, since the guide portion for guiding the hole portion of the protector to the proximal end side of the protrusion is provided at the distal end portion of the protrusion of the latch cover, the hole portion can be easily inserted into the protrusion and assembled. It is possible to improve the performance.
Further, in the above invention, the lower end portion of the protector is provided with a hooking portion as the engaging portion, and the latch cover is provided with a locking hole as a locking portion. Since the engaging portion is locked to the locking portion by being inserted into the locking hole , the assembling property can be improved with a simple process.
[Brief description of the drawings]
FIG. 1 is a side view of an automobile adopting a key cylinder mounting structure according to an embodiment of the present invention.
FIG. 2 is an enlarged view of the front door showing the location of the protector of the key cylinder and the latch cover of the door latch arranged in the automobile of FIG. 1;
FIG. 3 is a perspective view showing a state in which a protector of a key cylinder disposed on the front door of FIG. 1 is removed.
4 is a perspective view showing a state where the protector of FIG. 3 is put on a key cylinder. FIG.
FIG. 5 is a longitudinal sectional view of the front door of FIG.
6 is a cross-sectional view taken along the line XX of FIG.
FIG. 7 is a perspective view showing an assembled state of the engaging portion of the protector and the latching portion of the latch cover of the key cylinder portion mounting structure of the present invention.
8 is an exploded perspective view before the engaging portion and the locking portion of FIG. 7 are assembled. FIG.
9 is a longitudinal sectional view showing a state in which the engaging portion and the locking portion of FIG. 7 are assembled.
FIG. 10 is a perspective view of a locking portion in which the direction of the locking groove in the latch cover according to the first modified example of the present invention is changed.
FIG. 11 is a perspective view of an engaging portion in which a tip of a protrusion of a latch cover which is a second modification of the present invention is formed in a tapered shape.
FIG. 12 is an exploded perspective view showing a state in which a hooking portion is formed in the engaging portion of the protector in a third modification of the present invention.
13 is a longitudinal sectional view showing a state in which the engaging portion and the locking portion of FIG. 12 are assembled.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Automobile 2 Front door 4 Key cylinder 6 Outer panel 10 Door latch 11 Key rod 12 Inner panel 13 Protector 14 Latch cover 17 Engagement part 17a Engagement hole 19 Engagement part 20,21 Protrusion 20a Guide part 20b Engagement groove 23a Hook part 24a Locking hole

Claims (4)

A key cylinder having one end provided on the outer panel of the door and the other end disposed inside the door, a door latch attached to the inner panel with a space below the key cylinder, and the key cylinder and the door latch connected to each other. and key rod to the top is a protector other end side and a lower portion of said key cylinder covering said key rod, the mounting structure of the door lock unit and a latch cover which covers the door latch,
The protector is formed in a box shape having an opening, the protector is attached so that the opening faces the outer panel side, and an attachment piece for fixing to the inner panel side is provided on the upper part of the protector. An engaging portion is provided at a lower portion of the protector so as to protrude downward and overlap with an upper portion of the latch cover. The latch cover is provided with a locking portion, and the protector is provided. The upper side of the protector is fastened to the inner panel side via the mounting piece, while the lower side of the protector is fixed by locking the engaging portion of the protector to the locking portion of the latch cover. The door lock mounting structure. A hole is provided as the engaging portion of the protector, while a protrusion is provided as the locking portion of the latch cover, a locking groove is provided in a body portion of the protrusion, the hole is inserted into the protrusion, and the locking groove is provided. The door lock portion mounting structure according to claim 1 , wherein the engaging portion is locked to the locking portion by fitting a flange to an edge of the hole of the protector . The door lock portion mounting structure according to claim 2, wherein the locking groove extends downward from an upper surface of the body portion of the protrusion . The lower end portion of the protector is provided with a hooking portion as the engaging portion, the latch cover is provided with a locking hole as a locking portion, and the hooking portion is inserted into the locking hole. The door lock portion mounting structure according to claim 1, wherein the engaging portion is locked to the locking portion.

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