JP4511313B2 - Car key cylinder mounting structure - Google Patents

Description

  The present invention belongs to the technical field of a structure in which a key cylinder is attached to an automobile part having first and second members.

  2. Description of the Related Art Conventionally, as this type of key cylinder mounting structure, a structure in which a key cylinder is mounted on an automobile door composed of a synthetic resin outer panel and a steel plate inner panel is known. For example, in what is disclosed in Patent Document 1, after combining the outer panel and the inner panel, a key cylinder is inserted into the opening of the outer panel from the front side and combined with the bracket on the inner panel side, and the back side of the bracket Thus, a clip is inserted into the key cylinder, and a bracket, an outer panel, and a cover are overlapped and sandwiched between the clip and a flange (head) at the tip of the key cylinder.

In the above-mentioned conventional example, it is considered that the resin outer panel expands and contracts due to heat and the position of the opening and the key cylinder shifts, or the position of both shifts due to an assembly error or the like. Means for absorbing such misalignment are provided.
Japanese Examined Patent Publication No. 6-45978

  However, as described above, in the conventional example, the key cylinder is fixed to the bracket or the like by holding the bracket or the like between the flange of the key cylinder and the clip. A highly rigid clip must be used, and in order for the clip to be inserted into the key cylinder after the outer panel and inner panel are stacked, a relatively large opening must be provided in the inner panel. It is inevitable that the rigidity is reduced.

  In addition, it is not always easy for an operator holding the clip as described above to insert his hand into the door through the opening of the inner panel and insert the clip into the key cylinder. Or the operator may be forced into an unreasonable posture.

  The present invention has been made in view of such a point, and an object of the present invention is to provide a key cylinder for an automobile part composed of a plurality of members such as an automobile door so as to straddle the plurality of members. When attaching a member, the formation of an extra opening does not cause a reduction in the rigidity of the member, and the attachment operation is facilitated.

  In order to achieve the object, in the present invention, a key cylinder is fixed to one of a plurality of members constituting an automobile part, while the key cylinder is provided in an opening formed in another member combined with the member. An annular cover member having the insertion opening is attached in a loosely fitted state.

Specifically, the invention of claim 1 is a structure for attaching a key cylinder to an automobile part having a first member and a second member, and the key cylinder is substantially cylindrical, An annular cover member having a cylindrical key cylinder insertion opening is provided in the opening portion opened in the first member, and a small diameter portion formed on the head side of the cylinder body portion. A small-diameter portion of the key cylinder attached to the second member is attached to the key cylinder insertion port of the annular cover member. The annular cover member is inserted from the front side of the first member to the back side of the cover body portion covering the periphery of the opening portion, and is loosely fitted to the opening portion, and the small diameter portion of the key cylinder is externally fitted. Cylinder held by A plurality of projecting pieces projecting radially outward and engaging with the peripheral edge of the opening on the back surface of the first member are spaced at substantially equal intervals in the circumferential direction. Each of the projecting pieces is formed integrally with a claw projecting from a surface opposite to the cover main body so that the large-diameter portion of the key cylinder can be inserted. the opening peripheral edge, said with cutouts plurality can be inserted respectively pawl portion of each projecting piece is formed in the annular cover member, among the plurality of cutout portions, the direction circumferential in at least one notch A stopper portion is formed on at least one side of the first member so as to bulge from the back surface of the first member and restrict the movement of the protruding piece in the circumferential direction, and the stopper portion is the at least one notch portion. To get away from It is a wedge shape that bulges greatly, and in a state where the annular cover member is attached to the opening of the first member, each protruding piece gets over the stopper portion and is locked to the stopper portion, A small diameter portion of the key cylinder is inserted into the key cylinder insertion port, and a large diameter portion of the key cylinder is inserted between the claw portions.

  According to a second aspect of the present invention, in the key cylinder mounting structure according to the first aspect, of the plurality of notches formed on the periphery of the opening of the first member, one side in the circumferential direction of at least one notch. The wedge-shaped stopper portion is formed on the other circumferential side of at least one of the plurality of cutout portions, and protrudes from the back surface of the first member. A stopper projection that prevents movement toward one side in the circumferential direction is formed.

  According to a third aspect of the present invention, in the key cylinder mounting structure according to the first or second aspect, the first member is an outer panel of an automobile door, and the second member is an inner panel of the door.

  According to the key cylinder mounting structure for an automobile according to the first aspect of the present invention, of the first and second members constituting the automobile part, the opening formed in the first member has an annular shape having an insertion opening for the key cylinder. The cover member is attached in a loosely fitted state, and on the other hand, since the key cylinder is attached to the second member at a position corresponding to the key cylinder insertion port of the annular cover member, the first and second By combining the members, the head of the key cylinder can be simultaneously inserted into the key cylinder insertion port of the annular cover member.

  At that time, the annular cover member is loosely fitted to the opening of the first member, and is movable in the radial direction of the opening. Even if a misalignment occurs between the key cylinder head and the key cylinder insertion port due to an assembly error between the two, the misalignment can be absorbed by the movement of the annular cover member. Can be easily inserted into the key cylinder slot.

  Thus, the first member with the annular cover member attached to the opening and the second member with the key cylinder attached can be assembled to attach the key cylinder to the automobile part. It is not necessary to attach the key cylinder to the second member by inserting a clip after assembling the second member and the second member, and the key cylinder can be easily attached to both the first and second members. It is not necessary to form an extra opening for inserting the clip, and this does not cause a reduction in rigidity of the member.

  Further, according to the first aspect of the present invention, the cylindrical portion of the annular cover member is inserted into the opening from the front side of the first member, and around the cylinder axis in a predetermined direction (from any notch in the periphery of the opening). By rotating in the direction toward the one side where the stopper portion is formed adjacently, at least one of the plurality of protruding pieces at the tip of the cylindrical portion is slid with the wedge-shaped stopper portion on the back surface of the first member. It moves to the side away from the notch in the circumferential direction while contacting. Then, after the protruding piece exceeds the apex of the wedge of the stopper portion, the protruding piece is locked by the stopper portion, and the circumferential movement toward the notch portion side where the protruding piece is inserted is prevented. In this way, the annular cover member can be easily attached to the opening of the first member in a loosely fitted state so as to be movable in the radial direction and not to be detached.

  According to the second aspect of the present invention, even when the wedge-shaped stopper portion is formed only on one circumferential side of the notch at the periphery of the opening, the opening is formed on the other circumferential side of any of the notches. By forming a stopper projection that prevents the circumferential movement of the protruding piece of the annular cover member attached to the part, the annular cover member will not rotate until the protruding piece matches the notch, and this annular cover It is possible to prevent the member from falling off from the opening.

  According to the invention of claim 3, since the outer panel and the inner panel of the automobile door, both of which are large members, are likely to cause a relatively large positional shift due to respective manufacturing errors or assembly errors between the two. In this case, the effect of the invention of claim 1 is particularly effective.

  Embodiments of the present invention will be specifically described below with reference to the drawings.

  FIG. 2 shows a back door 1 of an automobile to which a key cylinder mounting structure according to the present invention is applied. The back door 1 is a resin inner panel 3 as a second member and a first member coupled to the outside thereof. And the resin outer panel 5. An opening 11 is formed in the outer panel 5, and a window glass 13 is attached to the opening 11.

  A rectangular license plate housing portion 15 is formed in the vehicle width direction center portion of the outer panel 5 so as to be recessed inside the vehicle body, and serves as a handle when the back door 1 is opened along the upper side portion thereof. A handle portion 17 is formed. Further, the license plate mounting portion 15 is formed with two mounting holes 15a for the license plate that are separated in the vehicle width direction. In addition, the code | symbol 19 of illustration is the attachment part of the hinge which pivotally supports the back door 1 so that it can open downward to the opening upper end edge of the vehicle body rear part.

  A key cylinder 21 is disposed at a position on the right side of the vehicle body in the handle portion 17 of the outer panel 5 with its head (end on the side where the key is inserted) facing the outside of the vehicle. An annular cover member 23 made of resin is disposed so as to cover the periphery of the head of the cylinder 21. That is, as shown in an enlarged cross-sectional view in FIG. 1, the key cylinder 21 has a substantially cylindrical shape, and an intermediate portion in the axial center X direction (the left-right direction in the figure) is attached to the inner panel 3, and the key The head of the cylinder 21 (right end in the figure) is inserted into a cylindrical center hole 23a of an annular cover member 23 attached to the opening 25 of the outer panel 5 (hereinafter, the center hole 23a is referred to as a key cylinder insertion port). 23a).

  More specifically, the key cylinder 21 includes a large-diameter portion 21a that constitutes a cylindrical cylinder body portion, and a small-diameter portion 21b that is formed on the head side of the cylinder body portion, and the outer periphery of the large-diameter portion 21a. The large diameter portion 21a passes through the opening 27 formed in the inclined wall portion 3a of the inner panel 3, and the flange 21c protruding from the shaft center X is provided in the inclined wall portion 3a. In a state where the flange 21c is overlapped, the both 3a and 21c are fastened by a screw 29.

  On the other hand, the small diameter portion 21b of the key cylinder 21 is formed in a cylindrical portion 23c integrally formed on the back side of the main body portion 23b (hereinafter referred to as the cover main body portion 23b) of the annular cover member 23 attached to the outer panel 5 as described above. When inserted and held by the cylindrical portion 23c, it faces the outside of the vehicle through a key cylinder insertion port 23a communicating with the space in the cylindrical portion 23c. Thus, the key cylinder 21 is attached across the inner panel 3 and the outer panel 5 of the back door 1.

As shown in FIGS. 3 and 4 in addition to FIG. 1, the annular cover member 23 includes a donut-shaped cover body 23 b that covers the periphery of the opening 25 from the front side of the outer panel 5, and the opening of the outer panel 5. A cylindrical portion 23c having an outer diameter smaller than 25 and an inner diameter substantially the same as the small diameter portion 21b of the key cylinder 21 is integrally formed of a resin material, and at the tip of the cylindrical portion 23c, A pair of projecting pieces 23d and 23d projecting radially outward at two locations facing each other in the radial direction are integrally formed, and each of the projecting pieces 23d is formed from a surface opposite to the cover main body portion 23b. A claw portion 23e that protrudes and has a thickness that decreases toward the tip end is integrally formed so that the large-diameter portion 21a of the key cylinder 21 can be inserted .

  On the other hand, the opening 25 of the outer panel 5 to which the annular cover member 23 is attached has a larger cross section than the cylindrical portion 23c of the annular cover member 23 in a plan view as shown in FIG. It is a circular shape having a smaller diameter than the outer diameter of the portion 23b, and has a substantially rectangular cutout portion at the periphery of the opening that is large enough to allow the protruding pieces 23d of the cylindrical portion 23c to pass through at two locations facing each other in the radial direction. 25a and 25a are formed. The cylindrical portions 23 c can be inserted into the openings 25 by aligning the protruding portions 23 d and 23 d at the tips of the cylindrical portions 23 c of the annular cover member 23 with the notches 25 a and 25 a.

  In addition, at the periphery of the opening 25 of the outer panel 5, the outer cover 5 bulges from the back surface of the outer cover 5 in a predetermined range (angle range) that is continuous on both sides in the circumferential direction of the notches 25 a. A stopper portion 25b that restricts the movement of the protruding piece 23d in the circumferential direction is provided. The stopper portion 25b is formed in a wedge shape that bulges greatly as it moves away from the notch portion 25a as shown in FIG. As described above, when the annular cover member 23 is attached to the outer panel 5, the protruding piece 23d at the tip of the cylindrical portion 23c is allowed to move away from the cutout portion 25a.

  That is, when the annular cover member 23 is attached to the opening 25 of the outer panel 5, the cylindrical portion of the annular cover member 23 is first aligned with the positions of the pair of protruding pieces 23d and the pair of notches 25a as described above. 23 c is inserted into the opening 25 from the front side of the outer panel 5. At this time, the claw portions 23e of the projecting pieces 23d first enter the notches 25a to guide the insertion of the projecting pieces 23d into the notches 25a.

  Then, after the protruding pieces 23d and 23d are positioned on the back side of the outer panel 5, respectively, when the annular cover member 23 is rotated around the cylindrical axis (axis X) of the cylindrical portion 23c, the protruding end of the cylindrical portion 23c is projected. The pieces 23d and 23d slide on the stopper portion 25b on the back surface of the outer panel 5 while being bent so that the distance between the distal end side and the cover body portion 23b is widened, and on the side away from the notch portion 25a in the circumferential direction. Moving.

  Then, after the protruding pieces 23d and 23d get over the stopper portion 25b, the protruding pieces 23d are restored to the state before the rotation of the annular cover member 23 by elastic force, and are engaged by the stopper portion 25b. It stops, and it will be in the state where the movement of the circumferential direction to the notch part 25a side in which each protrusion piece 23d was inserted was blocked | prevented. That is, even if the annular cover member 23 is rotated in either the clockwise direction or the counterclockwise direction, the rotation is blocked by the stopper portion 25b, and the protruding pieces 23d and 23d are aligned with the notches 25a and 25a. Thus, the annular cover member 23 is not detached from the opening 25 of the outer panel 5.

  Thus, in a state where the annular cover member 23 is attached to the opening 25 of the outer panel 5, the pair of projecting pieces 23d and 23d at the tip of the cylindrical portion 23c of the annular cover member 23 are engaged with the peripheral edge of the opening 25, respectively. The annular cover member 23 is attached so as not to drop off. At this time, since the outer diameter of the cylindrical portion 23c of the annular cover member 23 is smaller than the diameter of the cross section of the opening 25 of the outer panel 5, there is a gap between the outer periphery of the cylindrical portion 23c and the inner periphery of the opening 25. As a result, a gap is formed, and the annular cover member 23 is in a loosely fitted state that can move in the radial direction of the opening 25 with respect to the outer panel 5.

As described above, the annular cover member 23 is attached to the outer panel 5 in a loosely fitted state. On the other hand, the key cylinder 21 is attached to the inner panel 3 as described above, and both of them, that is, the outer panel 5 and the inner panel 3, by combining, as shown in FIG. 1, along with the small diameter portion 21b of the key cylinder 21 is inserted into the key cylinder insertion opening 23a of the annular cover member 23, the large diameter portion 21a in the key cylinder 21 is pre-tight portion 23e will be inserted .

  At that time, as described above, the annular cover member 23 is loosely fitted to the opening 25 of the outer panel 5 and can be moved in the radial direction of the opening 25. Therefore, each of the outer panel 5 and the inner panel 3 is provided. Even if a misalignment occurs between the small-diameter portion 21b of the key cylinder 21 and the key cylinder insertion port 23a due to manufacturing errors or assembly errors between the two, the misalignment is absorbed by the movement of the annular cover member 23. The key cylinder 21 can be easily and reliably inserted into the key cylinder insertion port 23a. In this way, the key cylinder 21 and the annular cover member 23 are centered on the axis X, and the appearance appearance is improved.

  Therefore, according to the key cylinder mounting structure for an automobile according to this embodiment, the key cylinder 21 is attached to the inner panel 3 of the back door 1, and the annular cover member 23 is attached to the opening 23 of the outer panel 5 in a loosely fitted state. By assembling them, it is possible to attach the key cylinder 21 to the back door 1 at the same time, so there is no need to insert a clip after assembling the inner panel 3 and the outer panel 5 as in the conventional example, and the key cylinder 21 is attached. The operation becomes extremely easy, and it is not necessary to form an extra opening for the operation in either the inner panel 3 or the outer panel 5, and this does not cause a reduction in rigidity of the member.

  Further, when the annular cover member 23 is attached to the opening 25 of the outer panel 5, it is only necessary to insert the cylindrical portion 23c of the annular cover member 23 into the opening 25 and to twist and rotate it in either direction. Therefore, the attachment itself of the annular cover member 23 can be performed very easily.

  Further, in this embodiment, in a state where the annular cover member 23 is attached to the opening 25 of the outer panel 5, the pair of protruding pieces 23 d and 23 d at the tip of the cylindrical portion 23 c of the annular cover member 23 are respectively connected to the back side of the outer panel 5. In this case, the annular cover member 23 is rotated clockwise or counterclockwise because the stoppers 25b and 25b formed on both sides in the circumferential direction of the notches 25a around the periphery of the opening 25 are prevented from moving in the circumferential direction. The projecting pieces 23d and 23d do not move over the stopper portions 25b and 25b and move to the positions of the cutout portions 25a and 25a. Therefore, the annular cover member 23 is removed from the outer panel 5. It will not drop out. For this reason, the outer panel 5 can be transported with the annular cover member 23 attached to the outer panel 5.

  In the above-described embodiment, as shown in FIG. 5, a pair of notches 25a and 25a are formed on the periphery of the opening 25 of the outer panel 5, and wedge-shaped stoppers are provided on both sides in the circumferential direction of the notches 25a. Although the portion 25b is provided, the present invention is not limited to this. For example, as shown in FIG. 6, a wedge-shaped stopper portion 25b may be provided only on one circumferential side of one of the notches 25a. Although not shown, the stopper portion 25b may be provided only on one side in the circumferential direction of both the notch portions 25a.

  As shown in FIG. 6, when the wedge-shaped stopper portion 25b is provided only on one circumferential side of the one notch portion 25a, the annular cover member 23 is prevented from falling off from the opening portion 25 as shown in the figure. It is preferable to provide a stopper protrusion 25c that protrudes steeply on the other circumferential side of the other notch 25a. Such a stopper projection 25c may be formed on the other circumferential side of the notch 25a on the side where the wedge-shaped stopper 25b is formed (the left notch 25a in FIG. 6A). .

  When the stopper convex portion 25c is formed in this way, when the annular cover member 23 is attached to the opening 5, the protruding piece 23d of the annular cover member 23 is inserted into the cutout portion 25a, and then the annular cover member 23 is moved in the circumferential direction. It can be attached to the outer panel 5 by rotating only in one direction, that is, in the clockwise direction in FIG.

  Further, the number of the projecting pieces 23d of the cutout portion 25a and the annular cover member 23 is not limited to two, but may be three or more, but in that case, the three or more cutout portions 25a and the locking pieces 23d may be used. Are preferably formed at substantially equal intervals in the circumferential direction. And the wedge-shaped stopper part 25b should just be provided in the circumferential direction at least one side of the at least 1 notch part 25a.

  In the above embodiment, the key cylinder mounting structure according to the present invention is applied to the back door 1 of the automobile. Needless to say, the key cylinder mounting structure can also be applied to a front door, a rear door, and the like. The present invention can also be applied to a mounting structure of a key cylinder disposed in the above.

  However, a combination of large panels (inner panel 3 and outer panel 5) such as an automobile door is likely to cause a relatively large positional shift due to manufacturing errors of each panel or an assembly error between them. The effect of the present invention that can absorb a large misalignment is particularly effective when applied to an automobile door as in the above embodiment.

It is an expanded sectional view in the AA line of Drawing 2 of the embodiment which applied the attachment structure of the key cylinder concerning the present invention to the back door of a car. It is a perspective view of the back door concerning an embodiment. It is a perspective view of the annular cover member concerning an embodiment. (a) is a front view of the annular cover member, and (b) is a sectional view taken along the line BB of FIG. (a) is a front view of the opening part of an outer panel, (b) is the CC sectional view taken on the line. FIG. 6 is a view corresponding to FIG. 5 according to another embodiment provided with a stopper convex portion.

1 Back door (auto parts)
3 Inner panel (second member)
5 Outer panel (first member)
21 Key cylinder 21a Large diameter part 21b Small diameter part 23 Annular cover member 23a Center hole (key cylinder insertion port)
23b Cover body part 23c Cylindrical part 23d Projection piece 25 Opening part 25a Notch part 25b Wedge-shaped stopper part 25c Stopper convex part

Claims (3)

A structure for attaching a key cylinder to an automobile part including a first member and a second member,
The key cylinder has a substantially cylindrical shape, and includes a large-diameter portion that constitutes a cylinder main body portion, and a small-diameter portion that is formed on the head side of the cylinder main body portion,
An annular cover member having a cylindrical key cylinder insertion port is attached to the opening portion opened in the first member in a loosely fit state so as to be movable in the radial direction of the opening portion and not to be removed from the opening portion,
A small diameter portion of the key cylinder attached to the second member is inserted into a key cylinder insertion port of the annular cover member;
The annular cover member is a cylindrical portion that is loosely fitted to the opening of the cover main body that covers the periphery of the opening from the front side of the first member, and holds the small diameter portion of the key cylinder in an externally fitted state. A plurality of projecting pieces projecting radially outward and engaging with the peripheral edge of the opening on the back surface of the first member are spaced at substantially equal intervals in the circumferential direction. Each of the projecting pieces is formed integrally with a claw projecting from the surface opposite to the cover main body so that the large diameter portion of the key cylinder can be inserted ,
On the other hand, the opening portion of the first member, said with each insertable plurality of notch a pawl portion of each protruding piece in the annular cover member is formed, among the plurality of cutout portions, at least one At least one side in the circumferential direction of the two notches is formed with a stopper portion that bulges from the back surface of the first member and restricts movement of the protruding piece in the circumferential direction, and the stopper portion is A wedge shape that bulges greatly from the at least one notch in the circumferential direction;
In a state where the annular cover member is attached to the opening of the first member, each protruding piece gets over the stopper portion and is locked to the stopper portion, while the small diameter portion of the key cylinder is inserted into the key cylinder. A key cylinder mounting structure for an automobile, wherein the key cylinder is inserted into a mouth and a large diameter portion of the key cylinder is inserted between the claw portions. In the key cylinder mounting structure according to claim 1,
The wedge-shaped stopper is formed on one side in the circumferential direction of at least one notch among the plurality of notches formed on the periphery of the opening of the first member,
On the other circumferential side of at least one of the plurality of notches, the projection protrudes from the back surface of the first member, and the projecting piece of the annular cover member moves to the one side in the circumferential direction. A key cylinder mounting structure for an automobile, wherein a stopper convex portion for blocking is formed. In the key cylinder mounting structure according to claim 1 or 2,
The key cylinder mounting structure for an automobile, wherein the first member is an outer panel of the door and the second member is an inner panel of the door.

Images