JP3759690B2 - Double lever assembly structure of vehicle door lock device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a double lever assembly structure of a vehicle door lock device. In general, a double lever of a vehicle door lock device is composed of a lock lever and a key lever that can rotate coaxially. The lock lever is connected to the lock knob of the vehicle, and the key lever is connected to the key cylinder to constitute a lock / unlock mechanism of the vehicle door lock device.
[0002]
[Prior art]
The double lever is fixed to the base of the vehicle door lock device using a fixing tool such as a screw while the lock lever and the key lever are combined.
[0003]
[Problems to be solved by the invention]
However, in the double lever assembly structure of the conventional vehicle door lock device, the key lever must be held integrally so as not to be detached from the lock lever until it is fixed by a fixing tool such as a screw. was there.
[0004]
The present invention has been made in view of the above-described conventional problems, and it is an object of the present invention to provide a double lever assembly structure of a vehicle door lock device that does not need to be held integrally so that the key lever is not pulled out from the lock lever. And
[0005]
[Means for Solving the Problems]
As means for solving the above problems, the present invention provides:
In the double lever assembly structure of the vehicle door lock device in which the double lever combining the first lever and the second lever is assembled to the base,
The base is provided with a shaft hole projecting in a cylindrical shape on one side ,
The first lever is formed of a plurality of claw pieces having protrusions protruding inward in the radial direction at the tip, and is fitted into the shaft hole and elastically deformed radially outward, and on the base side. A pair of extending arm parts ,
The second lever is provided with a shaft portion that fits into the cylindrical portion, and an outer periphery of the shaft portion is provided with an engagement concave portion into which a projection of the cylindrical portion of the first lever is fitted ,
Furthermore, the base has an insertion portion into which the arm portion can be inserted, and a guide that is continuous with the insertion portion and allows the arm portion to rotate when the first lever rotates, and engages with the arm portion. A hole,
With the shaft portion of the second lever fitted in the tube portion of the first lever, the tube portion is inserted into the shaft hole of the base, so that the claw pieces are formed on the inner peripheral surface of the shaft hole. The elastic deformation to the outside in the radial direction is limited .
[0006]
In the said invention, a 2nd lever can be combined with a 1st lever by engaging the axial part of a 2nd lever with the cylinder part of a 1st lever, and engaging an engaging part with a cylinder part. Then, by fitting the tube portion of the first lever into the shaft hole of the base, the tube portion is restricted from being elastically deformed radially outward by the inner peripheral surface of the shaft hole, and the shaft portion of the second lever. The engaging portion is not detached from the cylindrical portion of the first lever. Thus, the second lever can be disabled pulled out from the first lever, when the fixed double lever base, there is no need to hold the second lever to the first lever and integrally.
[0007]
Further, the second lever can be combined with the first lever by pushing the claw piece of the cylinder portion by the shaft portion. Further, with the projection of the claw piece fitted into the recess of the shaft portion, the claw piece is limited by the inner peripheral surface of the shaft hole by fitting this cylindrical portion into the shaft hole of the base, as described above. The shaft portion of the second lever cannot be detached from the cylindrical portion of the first lever, and the second lever can be reliably removed from the first lever.
[0008]
Furthermore, when the arm portion is inserted into the insertion portion of the base and rotated, the arm portion engages with the guide hole, the first lever is not detached from the base, and a double lever without a screw or other fixture is required. Can be fixed to the base.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
[0010]
FIG. 1 shows a vehicle door lock device 1 according to the present invention. The vehicle door lock device 1 generally includes a fens block 2, a set plate 3, a coaxial lock lever 4, and a key lever 5.
[0011]
The vehicle door lock device 1 makes the door opening operation impossible or possible, and locks or unlocks the door of the automobile. The lock lever 4 and the key lever 5 can be rotated on the set plate 3 as described later. As shown in FIG.
[0012]
The fens block 2 serves as a base for disposing the set plate 3, and the set plate 3 is disposed on the front side.
[0013]
The set plate 3 is provided with the lock lever 4 and the key lever 5 on the front side thereof, and as shown in FIG. 3, a shaft hole 6 protruding in a cylindrical shape on the back side and a pair of arm receiving portions. 7 is provided. As shown in FIG. 2, the arm receiving portion 7 is provided facing the outer peripheral portion of the shaft hole 6, and has an insertion portion 7 a through which an arm portion 13 described later is inserted, and an arc shape centering on the shaft hole 6. And a guide hole 7b continuous with the insertion portion 7a.
[0014]
As shown in FIG. 3, the lock lever 4 is provided with a cylindrical portion 8 that is rotatably fitted in the shaft hole 6 of the set plate 3. The cylindrical portion 8 has two slits 8a in the axial direction formed at the tip, and two claw pieces 9 that can be elastically deformed radially outward. Further, a protrusion 9 a that protrudes inward in the radial direction is formed at the tip of the claw piece 9. As shown in FIG. 2, as will be described later, a projecting piece 10 for rotating in conjunction with the key lever 5 is provided by cutting and raising, and the projecting piece 10 and the cylindrical portion 8 are connected in a straight line. The protrusion 11 is provided at the position. The protrusion 11 is slidably engaged with the long hole 12a of the link 12, and the link 12 is connected to an outer rod 12b connected to an outer handle (not shown). The link 12 slides up and down and operates a claw lever (not shown) disposed on the back side of the set plate 3 to open the door. The lock lever 4 is provided with an arm portion 13 that extends to the back side. A protruding portion 13a protruding radially outward is formed at the distal end portion of the arm portion 13. The protruding portion 13a is inserted in the insertion portion 7a of the set plate 3 in the counterclockwise direction. When it is rotated, the guide hole 7b is engaged in the axial direction.
[0015]
The key lever 5 is provided with a shaft portion 14 that is rotatably attached to the cylindrical portion 8 of the lock lever 4 on the back side. On the outer surface of the shaft portion 14, an engagement recess 14a into which the protrusion 9a of the tube portion 8 is fitted is formed continuously in the circumferential direction so that the key lever 5 can be rotated. As shown in FIG. 2, the key lever 5 is provided with a notch 15 formed in a wide angle in an arc shape centering on the shaft portion 14, and the protruding piece 10 of the lock lever 4 is formed on the inner side. It is supposed to be located in. Accordingly, the lock lever 4 is rotated in conjunction with the lock lever 4. The notch 15 is configured so that the key lever 5 in the neutral position does not interlock even when the lock lever 4 rotates. That is, the lock lever 4 is interlocked with the rotation of the key lever 5, but the key lever 5 is not interlocked with the rotation of the lock lever 4. Further, a connecting hole 17 for rotatably connecting a key rod 16 connected to a key cylinder (not shown) is provided at one end of the key lever 5.
[0016]
Next, the operation of the double lever assembly structure of the door lock device having the above-described configuration will be described.
[0017]
First, as shown in FIG. 3, when the shaft portion 14 of the key lever 5 is fitted to the tube portion 8 from the front side of the lock lever 4, the tip portion of the shaft portion 14 causes the claw piece 9 of the tube portion 8 to be radially outward. The projection 9a of the claw piece 9 is fitted into the engagement recess 14a. In this way, the key lever 5 can be combined with the lock lever 4, and the normal rotation range is a range where the arm portion 13 does not reach the insertion portion 7a. The double lever is assembled to the set plate 3 by fitting the cylindrical portion 8 of the lock lever 4 into the shaft hole 6 of the set plate 3 and inserting the arm portion 13 into the insertion portion 7 a of the set plate 3. At this time, as shown in FIG. 4, the claw piece 9 is limited to the inner peripheral surface of the shaft hole 6 and does not spread outward in the radial direction, but the projection 9a of the claw piece 9 is engaged with the engagement recess 14a. Therefore, the shaft portion 14 of the key lever 5 does not come off from the tube portion 8. Thereby, the key lever 5 can be made undetachable from the lock lever 4. And after attaching a double lever to the set plate 3, it is not necessary to hold | maintain so that the key lever 5 may not remove | deviate.
[0018]
Subsequently, when the lock lever 4 is rotated counterclockwise, the protruding portion 13a of the arm portion 13 is engaged with the guide hole 7b of the set plate 3 in the axial direction, and the lock lever 4 is detached from the set plate 3. It will not come off. As a result, the double lever can be fixed to the set plate 3 without requiring a fixing tool such as a screw. Further, the lock lever 4 can be rotated in the radial direction while being engaged with the guide hole 7b.
[0019]
【The invention's effect】
As is apparent from the above description, according to the present invention, the base is provided with the shaft hole, the first lever is fitted with the shaft hole, and is provided with the cylindrical portion that is elastically deformable radially outward. Since the lever is provided with a shaft portion that fits into the cylinder portion, and the engagement portion that engages with the cylinder portion of the first lever is provided on the outer periphery of the shaft portion, the shaft portion of the second lever is connected to the first lever. The shaft portion of the second lever is fitted into the shaft hole of the set plate in a state where the tube portion is engaged with the first lever and the engagement portion is engaged with the shaft portion. Can be removed from the first lever without detaching from the cylindrical portion of the first lever, and it is not necessary to hold the first lever and the second lever together when fixing the double lever to the base .
[0020]
In particular, the cylindrical portion of the first lever is composed of a plurality of claw pieces having protrusions protruding inward in the radial direction at the tip, and the engaging portion of the second lever is a recess into which the protrusion is fitted. The second lever can be combined with the first lever by pushing the claw piece of the cylinder portion by the shaft portion. Further, with the projection of the claw piece fitted into the recess of the shaft portion, the claw piece is limited by the inner peripheral surface of the shaft hole by fitting this cylindrical portion into the shaft hole of the base, as described above. The shaft portion of the second lever cannot be detached from the cylindrical portion of the first lever, and the second lever can be reliably removed from the first lever.
[0021]
In particular, the first lever is provided with an arm portion extending toward the pair of bases, and an insertion portion into which the arm portion can be inserted is connected to the base, and the arm portion rotates when the first lever rotates. By providing a guide hole that engages with the arm part, the lock lever does not come off from the set plate, and the double lever can be fixed to the set plate without the need for fixing tools such as screws. it can. The assembly workability is improved, and since no fixture is required, the number of parts can be reduced and the cost can be reduced.
[Brief description of the drawings]
FIG. 1 is a plan view of a vehicle door lock device according to an embodiment of the present invention.
2 is an exploded view of the vehicle door lock device of FIG. 1. FIG.
FIG. 3 is a cross-sectional view taken along line II of the vehicle door lock device of FIG.
4 is a cross-sectional view showing a state where the vehicle door lock device of FIG. 3 is assembled. FIG.
[Explanation of symbols]
1 Vehicle door lock device 3 Set plate (base)
4 Lock lever (first lever) 5 Key lever (second lever)
6 Shaft hole 8 Tube portion 14 Shaft portion 14a Engaging recess (engaging portion)

Claims (1)

In the double lever assembly structure of the vehicle door lock device in which the double lever combining the first lever and the second lever is assembled to the base,
The base is provided with a shaft hole projecting in a cylindrical shape on one side ,
The first lever is formed of a plurality of claw pieces having protrusions protruding inward in the radial direction at the tip, and is fitted into the shaft hole and elastically deformed radially outward, and on the base side. A pair of extending arm parts ,
The second lever is provided with a shaft portion that fits into the cylindrical portion, and an outer periphery of the shaft portion is provided with an engagement concave portion into which a projection of the cylindrical portion of the first lever is fitted ,
Furthermore, the base has an insertion portion into which the arm portion can be inserted, and a guide that is continuous with the insertion portion and allows the arm portion to rotate when the first lever rotates, and engages with the arm portion. A hole,
With the shaft portion of the second lever fitted to the tube portion of the first lever, the tube portion is inserted into the shaft hole of the base, so that the claw pieces are formed on the inner peripheral surface of the shaft hole. A double lever assembly structure for a vehicle door lock device, characterized by restricting elastic deformation outward in the radial direction .

Images