JP2005076346A - Mounting structure of door keys cylinder for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mounting structure of a door key cylinder for a vehicle having a large strength and a small assembling error variation. <P>SOLUTION: The key cylinder 4 is supported by a bracket 10 fixed to a door body at the side end part 4e in a vehicle and the side end part 4a of the door outside is fixed to the door skin 22. In the door skin 22, a mounting hole 22a to which the outside end 4a of the vehicle of the key cylinder 4 is fitted is formed. In the key cylinder 4, a mounting hole 22a of the door skin 22 is formed through a through hole 10a formed in the bracket 10. In the bracket 10, a mounting means 11 regulating the displacement of the rotary direction of the key cylinder 4 is provided. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a mounting structure for a vehicle door key cylinder installed on a door of a driver's seat of an automobile.

Conventionally, when a key cylinder is attached to a door skin, the key cylinder is inserted from the outside of the door skin of the passenger compartment, and is installed on the back side of the door skin by a retainer (pinning clip) (for example, Patent Document 1).
In some cases, a bracket is provided on the back side of the door skin, and a key cylinder is attached to the bracket by bolting. In this case, there is a gap between the key cylinder and the door skin due to the variation of the bracket and the door skin, and there is a case where the gap is closed with rubber.
JP 2000-282721 (paragraph 0008, FIG. 1 and FIG. 4)

  When the key cylinder is attached to the door skin with a retainer, both the retainer and the door skin are formed of a thin metal plate material, and both of them are easily deformed when subjected to external force, and thus the strength against theft is poor.

For this reason, as for the key cylinder, mounting means using a bracket made of a thick metal plate is generally used. When the key cylinder is attached to the bracket, the strength of the bracket can be freely set, so that it is easy to ensure the strength of the key cylinder.
However, when the key cylinder is installed on the door skin using the bracket, the key cylinder and the bracket are installed from the vehicle interior side of the door skin while assembling while confirming the installation state from the vehicle exterior side of the door skin. I can't. For this reason, the workability of the assembling work is poor and the assembling error is large.
When the key cylinder is attached to the bracket, the key cylinder is installed with the bracket as a reference and assembled to the door skin. Therefore, there is a variation of about 8 ° to 10 ° in the rotation direction with respect to the door skin. Since the clearance between the key cylinder and the door skin mounting hole is generally about 4 mm, there is a large variation in error during assembly. A cushioning elastic member such as black rubber for filling the gap due to the variation is interposed between the door skin and the key cylinder. The elastic member has a problem that it looks bad because it looks well from the gap between the key cylinder and the door skin mounting hole.

  For this reason, it is desirable that the key cylinder be installed with reference to the door skin in order to provide strength and reduce dimensional variation.

  An object of the present invention is to provide an attachment structure for a vehicle door key cylinder that has strength and has small variations in assembly errors.

  In order to solve the above-described problem, the vehicle door key cylinder mounting structure according to claim 1 is supported by a bracket whose inner end on the vehicle interior side is fixed to the door body, and whose outer end on the vehicle interior is fixed on the door skin. The door skin has a mounting structure for fitting a vehicle cylinder outer end of the key cylinder, and the key cylinder has a through hole formed in the bracket. It is provided in the attachment hole of the door skin, and the bracket is provided with attachment means for restricting displacement in the rotation direction of the key cylinder.

  According to the first aspect of the present invention, the key cylinder is attached to the attachment hole of the door skin from the vehicle interior side (rear surface side) through the through hole formed in the bracket. For this reason, the key cylinder can be provided at the outer end of the passenger compartment with reference to the attachment hole of the door skin. Therefore, there is variation due to an assembly error in the rotational direction between the key cylinder and the through hole of the bracket that fixes the end of the key cylinder on the vehicle interior side. This variation is because the mounting means for restricting the displacement in the rotation direction of the key cylinder is provided on the bracket, so that the variation in the assembly in the rotation direction is restricted. Therefore, the key cylinder is positioned, and the key cylinder is positioned in the door skin and the bracket. It will be possible to attach it accurately. In addition, since the key cylinder and the bracket can be attached from the vehicle interior side of the door skin, the key cylinder and the bracket can be assembled while being positioned from the same direction as the member for fixing the key cylinder, so that the assembling workability can be improved.

  The attachment structure of the vehicle door key cylinder according to claim 2 is the attachment structure of the vehicle door key cylinder according to claim 1, wherein the attachment means radially extends from the rotation center of the key cylinder. It is characterized by being inserted into the long hole.

  According to the second aspect of the present invention, the vehicle door key cylinder mounting structure is configured such that the mounting means is inserted into the long hole radially extending from the center of rotation of the key cylinder. As a result, it is possible to regulate the variation in the assembly of the key cylinder in the rotational direction, so that the key cylinder can be accurately and easily attached to the door skin and the bracket.

  The vehicle door key cylinder mounting structure according to claim 3 is the vehicle door key cylinder mounting structure according to claim 1 or 2, wherein the key cylinder is locked to the bracket. Means are provided.

  According to the third aspect of the present invention, the vehicle door key cylinder mounting structure is provided with a locking means for locking the bracket to the bracket, so that when the key cylinder is mounted to the bracket, The stop means is locked to the bracket. For this reason, when the key cylinder is assembled to the door skin, it can be temporarily fixed to the bracket and can be firmly fixed to the bracket.

  According to the vehicle door key cylinder mounting structure according to the present invention, the key cylinder is provided with mounting means for restricting displacement in the rotation direction of the key cylinder on the bracket, so that variation in assembly in the rotation direction is restricted. Therefore, the key cylinder can be accurately attached to the door skin and the bracket. In addition, since the key cylinder and the bracket can be attached from the vehicle interior side of the door skin, the assembling workability can be improved.

Hereinafter, with reference to FIGS. 1-6, the attachment structure of the vehicle door key cylinder which concerns on embodiment of this invention is demonstrated.
FIG. 1 is a view showing a mounting structure of a vehicle door key cylinder according to an embodiment of the present invention, and is a side view of the vehicle showing an installation state on the key cylinder. FIG. 2 is an enlarged cross-sectional view in the direction of the arrow XX in FIG. 1 when the key is attached. It is a figure which shows the attachment structure of the vehicle door key cylinder which concerns on embodiment of this invention, and is an expanded center sectional view which shows a state when a key is inserted in a key cylinder. FIG. 3 is a left side view of the key cylinder, showing the mounting structure of the vehicle door key cylinder according to the embodiment of the present invention. FIG. 4 is a view showing the mounting structure of the vehicle door key cylinder according to the embodiment of the present invention, and is an enlarged exploded perspective view showing the assembled state of the key cylinder. FIG. 5 is a view showing a mounting structure of the vehicle door key cylinder according to the embodiment of the present invention, and is a right side view of the key cylinder. FIG. 6 is a plan view of the key cylinder, showing a mounting structure of the vehicle door key cylinder according to the embodiment of the present invention.

As shown in FIG. 1, the door 2 is, for example, a side door, a back door, or a trunk installed in a driver seat and a passenger seat of the vehicle 1, and includes a door handle 3 for opening and closing the door 2 and the door. A key cylinder 4 for locking and unlocking 2 is installed. The door 2 includes, for example, a hinged door, a sliding door, a gull-wing door, or the like.
The door 2 only needs to have the key cylinder 4 installed thereon, and the type of the door 2 is not particularly limited.
Hereinafter, an embodiment of the present invention will be described by taking as an example a key cylinder 4 installed on a hinge-type door 2 of a front row right seat (driver's seat) that pivots around a hinge and opens rearward.

  The door 2 includes, for example, a frame-shaped door main body 21 serving as a skeleton, a door skin 22 installed outside the vehicle interior of the door main body 21, and a lining 12 installed on the vehicle interior side of the door main body 21 (see FIG. 2). ) And the bracket 10 interposed between the door skin 22 and the lining 12 as a main element. The door 2 includes the key cylinder 4, an inside handle (not shown) installed on the lining 12, a door installed on the lining 12 (see FIG. 2) and the door body 21 to lock and unlock the door 2. A lock mechanism (not shown) is provided.

  The door main body 21 is a member that becomes a skeleton of the door 2, and is formed of, for example, a light metal such as an aluminum alloy or a magnesium alloy, or steel. The door body 21 includes, for example, a front frame member 21a provided on the front side of the vehicle 1, a rear frame member 21b provided on the rear side of the vehicle 1, and an upper frame that connects the front frame member 21a and the rear frame member 21b. It consists of a frame-like frame composed of 21c and a lower frame 21d.

The door skin 22 is a so-called outer panel that constitutes the outer surface of the door 2 and is made of a rolled steel plate or a light alloy rolled material. The door skin 22 is attached to the door body 21 by hemming or the like, and forms the outer surface of the door 2.
As shown in FIGS. 3 and 4, the door skin 22 is provided with a mounting hole 22 a for exposing the passenger compartment outer end 4 a of the key cylinder 4. The inner diameter of the mounting hole 22a is, for example, slightly larger than the outer diameter of the outer end 4a of the passenger compartment of the key cylinder 4, and is formed so as to absorb errors in assembly dimensions. Between the mounting hole 22 a and the key cylinder 4, an elastic material 5 described later made of synthetic rubber or the like is interposed, so that the elastic material 5 is slightly visible from the outside of the vehicle interior of the door skin 22.

  As shown in FIG. 2, the key cylinder 4 is a door key cylinder that locks and unlocks a door lock device (not shown) by inserting and rotating the key 6. The key cylinder 4 mainly includes an outer case 44, an inner cylinder 43 provided in the outer case 44, and an outer cup 41 for closing the outer side of the outer case 44 in which the inner cylinder 43 is inserted. Has been. The key cylinder 4 is press-fitted into the mounting hole 22a of the door skin 22 through the through hole 10a formed in the bracket 10 to fix the vehicle interior outer end 4a, and the vehicle interior side end 4e is fixed to the bracket 10. It is fixed by the tool 11. Thus, the key cylinder 4 is held by two members, the door skin 22 and the bracket 10.

An outer cup 41 is installed on the outer side end 4a of the key cylinder 4 so as to cover the outer side end 4a (see FIG. 2). In the center of the outer cup 41, a key hole 4b for inserting the key 6 (see FIG. 2) is formed. As shown in FIG. 3, the key cylinder 4 is installed on the door skin 22 (see FIG. 1) with the keyhole 4 b positioned in a vertical state.
When the key 6 (see FIG. 2) is rotated about 65 ° to the right, the cam plate 8 swings to lock the door lock mechanism (not shown), and about 65 ° to the left. Then, the cam plate 8 swings and the door lock mechanism (not shown) is unlocked.
The outer diameter of the key cylinder 4 is formed slightly smaller than the through hole 10a of the bracket 10 and the attachment hole 22a of the door skin 22 shown in FIGS. 2 and 4, so that the key cylinder 4 can be inserted into the through hole 10a and the attachment hole 22a. Is formed. On the outer periphery of the key cylinder 4, a flange 4 c and a locking projection 4 d that are formed integrally with the outer case 44 are formed to protrude.
As shown in FIG. 2, a retaining ring 9 is installed at a vehicle interior side end 4 e of the key cylinder 4 via a coil spring 7 and a locking cam plate 8. Inside the key cylinder 4, an inner cylinder 43 having a tumbler 42 that is urged by a spring (not shown) and presses against the key groove 6 a of the key 6 is installed.

  The flange 4c is a flange-shaped member formed on the outer periphery from the vehicle interior side end 4e of the key cylinder 4, and protrudes from the rotation center O of the key cylinder 4 with a long hole 4f radially extending in the longitudinal direction. The piece 4g is integrally formed. The flange 4c is a locking projection 4d rotated through a notch groove 10b formed at the edge of the through hole 10a as shown by an arrow C in FIG. 4 and locked to the edge of the through hole 10a of the bracket 10. As shown in FIG. 6, it is formed to hold the bracket 10.

  The protruding piece 4g formed on the flange 4c is formed in order to install a positioning long hole 4f on the outer periphery of the key cylinder 4. The long hole 4f is formed of a hole that is long in the radial direction around the rotation center O, and the fixture 11 inserted into the long hole 4f can be moved in the direction of the rotation center O.

  As shown in FIG. 5, the long hole 4 f and the stop hole 10 c to which the fixing tool 11 is fixed are formed at an oblique position at the same angle θ that is a distance L away from the rotation center O of the key cylinder 4. 4 can be positioned at a predetermined position of the bracket 10. The distance L is, for example, about three times the radius R of the key cylinder 4, and the fixing tool 11 is set at a position far from the rotation center O by increasing the distance L. Assembling accuracy and holding strength can be improved. The angle θ is an arbitrary angle, for example, 35 °. Note that the angle θ is not particularly limited as long as the angle at which the elongated hole 4f and the stop hole 10c are installed is the same angle.

As shown in FIGS. 4 and 5, the locking convex portion 4 d is a convex portion that protrudes in the horizontal direction from the outer peripheral portion of the outer case 44 and locks the key cylinder 4 to the bracket 10, for example. . As shown in FIG. 6, the locking projection 4 d is formed on the bracket 10 on the outside of the passenger compartment of the flange 4 c so as to be shifted by a thickness. Then, when the locking projection 4d is inserted into the notch groove 10b and the key cylinder 4 is rotated in the direction of arrow C and attached to the bracket 10, the locking projection 4d holds the bracket 10 by the flange 4c. It has become.
The locking projection 4d corresponds to “locking means” described in the claims.

  The elastic member 5 is an annular so-called grommet fitted to the periphery of the passenger compartment outer end 4 a of the key cylinder 4. The elastic material 5 has a function as a sealing material, a cushioning material for buffering an external force applied between the two, a backlash prevention material at the outer end 4a of the passenger compartment of the key cylinder 4 installed on the door skin 22. Is provided.

  The bracket 10 is made of, for example, a stiffener for reinforcing the door 2 made of a thick metal plate, and is fixed to the surface of the door main body 21 (see FIG. 1) in the door 2. As shown in FIG. 2, the bracket 10 is disposed substantially parallel to the door skin 22 on the vehicle interior side of the door skin 22. The bracket 10 has a through hole 10a for inserting the key cylinder 4, a notch groove 10b formed at an edge of the through hole 10a, and a stop hole 10c for restricting the displacement of the key cylinder 4 in the rotational direction. And are provided.

The through hole 10 a is set to be in the same position as the mounting hole 22 a drilled in the door skin 22.
The notch groove 10b has a key groove shape that is formed to allow the locking projection 4d to be inserted when the key cylinder 4 is inserted into the through hole 10a and supported. It is formed at the position. The notch groove 10b is installed in a direction opposite to the position where the stop hole 10c is installed, for example.
The stop hole 10c is formed of, for example, a screw hole into which the screw portion 11a of the fixture 11 made of a bolt is screwed. The retaining hole 10c is formed as a simple through hole when the fixture 11 is a bolt / nut or a rivet.

The fixture 11 is a member for inserting the long hole 4f and the stop hole 10c and fixing the flange 4c of the key cylinder 4 to the bracket 10, and is made of, for example, a bolt, a screw, a rivet, or the like.
The fixture 11 corresponds to “attachment means” described in the claims.

Next, the operation of the vehicle door key cylinder mounting structure according to the embodiment of the present invention will be described together with the assembling procedure.
When the key cylinder 4 is attached to the door 2, as shown in FIG. 4, the key cylinder 4 is inserted into the through hole 10a while the locking projection 4d is inserted into the cutout groove 10b from the vehicle interior side of the door skin 22. The key cylinder 4 is rotated around the axis in the direction of arrow C.
Then, as shown in FIG. 6, the locking projection 4 d is located outside the vehicle compartment of the bracket 10, and the bracket 10 is sandwiched between the locking projection 4 d and the flange 4 c, and the key cylinder 4 Is supported by the bracket 10. And since the latching convex part 4d is latched by the edge of the through-hole 10a, the movement to the vehicle interior direction of the key cylinder 4 is controlled, and omission of the key cylinder 4 with respect to the bracket 10 and the door skin 22 is prevented. Therefore, the temporary holding state can be obtained. When the key cylinder 4 is attached to the bracket 10, the locking projection 4 d is locked to the bracket 10, whereby the key cylinder 4 is firmly fixed to the bracket 10 in the vehicle interior direction.
Further, the elastic member 5 fitted to the outer side end 4a of the key cylinder 4 is fitted in a state of being pressed against the edge of the attachment hole 22a of the door skin 22, as shown in FIG.

Next, the fixture 11 is inserted into the long hole 4f, and the vehicle interior outer end 4a of the key cylinder 4 is aligned with the door skin 22 from the vehicle interior side (back side) with reference to the attachment hole 22a. The rotation is stopped by screwing into the stop hole 10c.
Then, an assembly error in the rotation direction of the key cylinder 4 existing between the key cylinder 4 and the through hole 10a of the bracket 10 causes a positioning stop hole 10c for restricting the displacement of the key cylinder 4 in the rotation direction to the bracket 10. By drilling and fixing the key cylinder 4 with the fixing tool 11, variation in assembly in the rotational direction is restricted. For this reason, the key cylinder 4 can be accurately attached to predetermined positions of the door skin 22 and the bracket 10.

Further, when the outer side end portion 4a of the key cylinder 4 is aligned with respect to the mounting hole 22a, the outer side end portion 4a of the key cylinder 4 moves slightly with respect to the mounting hole 22a and the position of the key cylinder 4 is adjusted. Is done. The outer side end 4a of the key cylinder 4 has a larger inner diameter of the mounting hole 22a than the outer diameter of the outer side end 4a, and the elastic body 5 interposed therebetween is deformed so that the error is absorbed and moved. Fine adjustment is possible.
As a result, the key cylinder 4 is positioned on the door 2 and can be accurately attached to the door skin 22 and the bracket 10.

  Moreover, the key cylinder 4 is attached from the vehicle interior side of the door skin 22 and positioned, so that it is not necessary to confirm the attachment state of the key cylinder 4 from the vehicle interior outside. For this reason, the work of aligning the key cylinder 4 with the mounting hole 22a of the door skin 22 and the through hole 10a of the bracket 10 and the work of assembling the key cylinder 4 are facilitated, and the workability thereof can be improved.

In the key cylinder 4, the vehicle interior outer end 4a is held by the door skin 22 and the vehicle interior side end 4e is fixed by the rigid bracket 10, so that the mounting strength of the key cylinder 4 can be improved.
Further, the key cylinder 4 has a long hole 4f formed in the protruding piece 4g formed on the flange 4c and is fixed by the fixing tool 11 at a position away from the rotation center O by a distance L longer than the radius R. The mounting strength with respect to the rotational direction 4 (locking / unlocking direction of arrows AB) is improved.
Therefore, for the purpose of theft, the key cylinder 4 is moved up and down (arrows D and E in FIG. 3), left and right (arrows F and G in FIG. 3) and rotational directions (arrows A and B are locked and unlocked) with a tool or the like. Even if an external force is applied to the key cylinder 4, the key cylinder 4 is strong enough to withstand the external force in the vertical (arrows D and E) and left and right (arrows F and G) directions.

Note that the vehicle door key cylinder mounting structure according to the present invention is not limited to the above-described embodiment, and various modifications and changes can be made within the scope of the technical idea thereof. It goes without saying that the invention extends to the modified invention.
The door 2 is not limited to the one having a skeleton structure including the door main body 21, the door skin 22, and the lining 12. For example, the door 2 may be a door that does not have the door body 21 by hemming the outer panel and the inner panel and is reinforced with a reinforcing member such as a brace or a lane force. Is not particularly limited. In this case, the bracket 10 is installed on the inner panel.

  In addition, the bracket 10 may be a member that internally installs the key cylinder 4 in the door 2, and may be a reinforcing member for the door 2, such as a door beam or a guard bar. In this case, reinforcing members such as a door beam and a guard bar as the bracket 10 are installed on the inner panel or the door main body 21.

It is a figure which shows the attachment structure of the door key cylinder for vehicles which concerns on embodiment of this invention, and is a side view of the vehicle which shows an installation state in a key cylinder. It is an expanded sectional view of the arrow XX direction of FIG. 1 when a key is mounted | worn. It is a figure which shows the attachment structure of the vehicle door key cylinder which concerns on embodiment of this invention, and is a left view of a key cylinder. It is a figure which shows the attachment structure of the vehicle door key cylinder which concerns on embodiment of this invention, and is an expansion disassembled perspective view which shows the assembly | attachment state of a key cylinder. It is a figure which shows the attachment structure of the vehicle door key cylinder which concerns on embodiment of this invention, and is a right view of a key cylinder. It is a figure which shows the attachment structure of the door key cylinder for vehicles which concerns on embodiment of this invention, and is a top view of a key cylinder.

Explanation of symbols

2 door 4 key cylinder 4a vehicle compartment outer side end 4d locking projection (locking means)
4e Car interior side end 4f Long hole 10 Bracket 10a Through hole 10c Stop hole 11 Fixing tool (attachment means)
21 Door body 22 Door skin 22a Mounting hole

Claims (3)

The vehicle interior side key is supported by a bracket fixed to the door body of the door, and the vehicle exterior side end is fixed to the door skin.
The door skin is formed with a mounting hole into which the outer end of the key cylinder is fitted,
The key cylinder is provided in the attachment hole of the door skin through a through hole formed in the bracket,
An attachment structure for a vehicle door key cylinder, wherein the bracket is provided with attachment means for restricting displacement in the rotation direction of the key cylinder.   2. The vehicle door key cylinder mounting structure according to claim 1, wherein the mounting means is inserted into a long hole radially extending from the rotation center of the key cylinder. 3.   3. The vehicle door key cylinder mounting structure according to claim 1, wherein the key cylinder is provided with a locking means for locking to the bracket.

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