JPH0546615Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention reverses the biasing direction of the locking/unlocking lever and other various levers when the lever passes through an appropriate intermediate position in its rotation range. This invention relates to a door lock device that gives an appropriate sense of moderation to the rotational operation of a lever.

[Conventional technology]

An example of a door lock device that provides a sense of moderation to the lever as described above is shown in FIGS. 5 and 6, for example.

This is the base plate A of the door lock body.
, one end D ₁ of an over-center spring D made of a torsion coil spring is locked in the middle of one arm C ₁ of a locking/unlocking lever C pivotally mounted with an axis B, and the other end D ₂ is locked in a proper position F on the base plate A, the locking part E of the over-center spring D on the lock/unlock lever C is aligned with the center O of the shaft B and the locking part F of the over-center spring D on the base plate A. When passing straight line L passing through , the biasing direction of the locking/unlocking lever C by the over-center spring D is reversed, and the locking/unlocking lever C is biased in the forward and reverse directions, and the locking/unlocking lever C This gives a sense of moderation to the rotational operation.

In addition to this door lock device that provides a sense of moderation to the lever, there is one disclosed in, for example, Japanese Utility Model Application Publication No. 59-69378.

This is a device in which a leaf spring equipped with a protrusion is pressed into contact with the base plate as an integral part of the operating lever, and by engaging the protrusion with a recess formed in the base plate, it gives a sense of moderation to the rotation of the operating lever. It is.

[Problem that the invention attempts to solve]

According to the former door lock device described above, since the locking portion E of the overcenter spring D on the arm _C1 of the locking/unlocking lever C is located above the base plate A, the biasing force of the overcenter spring D is applied to the locking/unlocking lever C. Arm C ₁ in
It acts so as to be pushed diagonally upward about the axis B (see the arrow in FIG. 6), and a downward pressing force acts on the other arm _C2 .

As a result, the shaft B receives a bending load, causing uneven contact, and the rotation of the lock/unlock lever becomes unsmooth.
There is a risk that the shaft B will wear unevenly, causing play in the pivot joint.

In addition, due to the downward pressing force at arm _C2 ,
There is also the problem that the surface pressure against the base plate A becomes large, the sliding resistance increases, and the rotation of the lock/unlock lever becomes unsmooth.

Furthermore, since the over-center spring D, which is a separate member, is used as a means to give a sense of moderation to the rotation of the lever, the number of parts increases and the assembly work is complicated, and the biasing force of the over-center spring D Since the two ends open each other, assembly must be done manually, which poses problems such as the inability to improve workability and efficiency.

In the latter door lock device, the biasing force of the leaf spring that is in constant pressure contact with the base plate acts to push the operating lever open from one side relative to the base plate, so the pivot shaft of the operating lever receives a bending load and prevents uneven contact. This may cause the operating lever to rotate unsmoothly or cause play in the pivot joint.

The present invention was made to solve the above problems, and it reduces the bending load acting on the lever shaft as much as possible to enable smooth operation of the lever, and also to reduce the bending load acting on the lever shaft. It is an object of the present invention to provide a door lock device which prevents rattling, reduces the number of parts, and reduces the number of assembly steps.

[Means for solving problems]

Means for solving the above problems is provided in an automobile door lock device in which various levers are pivotally mounted on a base plate so as to be movable between two positions. The pieces protrude radially, and a slider capable of slidingly contacting the base plate is provided at the tip of each elastic foot piece, and a portion of the base plate facing at least one slider is provided with a slider. It is characterized by a chevron-shaped protrusion that protrudes into the rotation locus of the child.

[Effect]

The sliders on the plurality of elastic feet protruding radially from the pivot of the lever slide while being elastically deformed along the chevron-shaped protrusions provided on the base plate, allowing the lever to rotate smoothly with a sense of moderation. The bending load that acts on the lever or pivot when the slider on the elastic leg moves over the protrusion is:
The sliders on the other plurality of elastic feet come into contact with the base plate, thereby canceling out or reducing the effect.

Therefore, there is no risk of uneven abutment or uneven wear on the pivot portion of the lever.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on the drawings.

FIG. 1 is a front view of the locking/unlocking mechanism side of a door locking device to which the present invention is applied.

1 is a base plate made of a steel plate fixed to one side of the door lock body (not shown); 2 is a locking/unlocking lever made of hard synthetic resin, which is pivotally connected to the base plate 1 with a pivot 3 formed integrally therewith. .

The lock/unlock lever 2 engages with the sub-lever 4 with a pin 2a projecting outward from a key point thereof,
Further, the sub-lever 4 is engaged with an outside lever 5 pivotally mounted on the base plate 1.

The lug 2c protruding to the left of the lock/unlock lever 2 is
The rod 6 is connected to a door knob (not shown), and the lug 2d protruding to the right is connected to a door key cylinder device (not shown) by a rod 7. Through the operation, the unlocked position shown by the solid line and the locked position shown by the two-dot chain line are activated.
It can rotate around the pivot 3.

When the lock/unlock lever 2 is in the unlocked position, the sub-lever 4 and the open lever 8 are in an engageable state, and when the inside handle or the outside handle (both not shown) of the door is operated,
When the outside lever 5 is rotated, the sub-lever 4 engaged with it rotates the open lever 8, thereby releasing the engagement between the latch provided in the door lock body and the striker on the vehicle body side (both not shown).

On the other hand, when the lock/unlock lever 2 is in the locked position, the sub-lever 4 rotates as shown by the two-dot chain line in FIG. It is now impossible to release the engagement between the latch and the striker.

Next, the configuration of the lock/unlock lever 2 will be explained in detail.

As shown in FIG. 2, which is a perspective view of the rear side, the locking/unlocking lever 2 has a rotating ring 2b and lug pieces 2c and 2d protruding from the left and right sides of the rotating ring 2b. is concentrically attached to a mounting piece 9a supported by three arms 9 extending at approximately equal intervals in the centripetal direction from the inner peripheral surface of the rotating ring 2b.

Approximately midway between the adjacent arms 9, 9 on the mounting piece 9a, there are elastic feet 10 that protrude radially.
Each is protruded.

The tip of each elastic foot 10 is bent at a right angle so as to be parallel to the pivot 3, and the tip has a shape that faces in the circumferential direction and both sides that face in the plane direction formed by the elastic foot 10. An inclined chevron-shaped slider 10a is integrally formed.

Each slider 10a is adapted to come into contact with the surface of the base plate 1 when the lock/unlock lever 2 is pivotally attached to the base plate 1 with a pivot 3.

As shown in FIG. 3, the base plate 1 includes:
Any one slider 10 in the elastic leg piece 10
A chevron-shaped protrusion 11 that bulges toward the lock/unlock lever 2 side is formed within the rotation locus a.

The angle of inclination of each inclined surface 11a of the projection 11 is approximately equal to the angle of inclination of the slider 10a, so that the slider 10a slides in surface contact with the inclined surface 11a of the projection 11.

When the lock/unlock lever 2 rotates, the slider 10a
moves over the mountain along the slope 11a of the protrusion 11 and moves to the opposite side, as shown by the two-dot chain line in FIG.

Therefore, the lock/unlock lever 2 has an elastic foot piece 10,
Due to the elastic action caused by the deformation of the slider 10a with the tongue piece 10b, it can be rotated with a sense of moderation between the unlocked position shown by the solid line in FIG. 1 and the locked position shown by the two-dot chain line.

In the lock/unlock lever 2 configured in this way, when some of the elastic legs 10 get over the protrusion 11 as shown in FIG. 4th due to the repulsive force of
A bending load in the upward direction indicated by the arrow in the figure acts, and conversely, a downward pressing force in the figure acts on the rotating ring 2b on the other side of the pivot 3.

This bending load on the rotating ring 2b acts as a force that tilts the pivot 3 to one side, but the protrusion 1
Two other elastic legs 10 other than those in sliding contact with 1
Since the slider 10a in presses against the base plate 1 and receives the bending load of the rotating ring 2b in a reactionary manner, the bending load acting on the pivot 3 is canceled out or reduced.

Therefore, uneven contact and uneven wear of the pivot shaft 3 are prevented, and there is no risk of rattling or the like occurring in the locking/unlocking lever 2, and the lever can be rotated smoothly.

When the lock/unlock lever 2 is not operated, the three sliders 10a of each elastic leg 10 are in contact with the base plate 1 at three points with uniform and appropriate elastic force, so that the vehicle This prevents rattling in the pivot joint due to vibrations when driving, opening and closing doors, etc.

The present invention is not limited to the above embodiments, but within the scope of the idea of the invention,
Various modifications and embodiments are possible.

For example, the shape of the slider 10a in the elastic leg piece 10 is not limited to the above-mentioned example, but is arbitrary.

In addition to the above-mentioned lock/unlock lever, the present invention also provides
It goes without saying that the present invention can also be applied to various levers that are movable between two positions that are provided in automobile door lock devices.

[Effect of idea]

According to the automobile door lock device of the present invention, one of the sliders of the plurality of elastic feet protruding radially from the pivot portion of the lever is elastically deformed together with the elastic feet along the chevron-shaped protrusion provided on the base plate. By sliding the lever, the lever can rotate smoothly between two positions with a sense of moderation.

In addition, the bending load that acts on the lever or pivot when the slider rides over the chevron-shaped protrusion is caused by the sliders on the other plurality of elastic legs other than those in sliding contact with the protrusion coming into pressure contact with the base plate. Since it is applied in a reactive manner, uneven wear of the pivot shaft is less likely to occur, and it is effective in preventing the lever from rattling.

The means to give a sense of moderation to the rotation of the lever is composed of a protrusion on the base plate and an elastic foot piece that is integrated with the lever, so the number of parts can be reduced compared to the conventional method, and the number of assembly steps can be reduced. This will improve work efficiency.

[Brief explanation of the drawing]

Fig. 1 is a front view of the automobile door lock device of the present invention, Fig. 2 is a perspective view of the lock/unlock lever seen from the back, and Fig. 3 is an enlarged cross-sectional view taken along the line X-X in Fig. 1. A plan view and FIG. 4 are explanatory diagrams of the locking/unlocking lever when the elastic leg piece is located at the top of the protrusion, and FIG. 5 is an example of a conventional door locking device that gives a sense of moderation to the lever. The front view shown in FIG. 6 is a cross-sectional plan view taken along the line Y--Y in FIG. 5. 1...Base plate, 2...Lock/unlock lever,
2a...Pin, 2b...Rotating ring, 2c, 2d...
Ear piece, 3... Pivot, 9... Arm, 10... Elastic leg piece, 10a... Slider, 10b... Tongue piece, 11
……protrusion.

Claims (1)

[Scope of utility model registration request] In an automobile door lock device in which various levers are pivotally mounted to a base plate so as to be movable between two positions, a plurality of elastic legs protrude radially from the pivot portion of one of the levers, and each elastic leg A slider capable of slidingly contacting the base plate is provided at the tip of the piece, and a chevron-shaped portion of the base plate that faces at least one slider is provided at a portion of the base plate that faces the at least one slider. An automobile door lock device characterized by being provided with a protrusion.