JPH0730984Y2 - Pivoting structure of lever in vehicle door check mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a structure for pivotally attaching a lever in a door check mechanism of an automobile.

[Conventional technology]

In the means for pivotally attaching the lever of the door check mechanism of the automobile to the bracket on the pillar side with the pivot interposed, usually, the lever axial hole and the bracket are pivotally attached only by the pivot. There are few examples that use bushes as an example. And the thing which constitutes the bush with materials other than metal is also published by patent application publication 1988 No. 590 etc.

[Problems to be solved by the device]

In the technique of interposing a bush in the shaft hole of the lever in the pivoting means of the check lever, there is a preparatory work in which the bush is engaged with the lever before the pivoting work to integrate the lever and the bush. However, even if they are engaged once, there is a fear that they will fall off immediately before the pivoting work, and it is not rare that this hinders the flow work.

This is a case that occurs because the bush and the lever are not completely solidified.

This device facilitates pivoting and sliding motion smoothly,
Further, the object is to utilize the elasticity that metal does not have, and to solidify and integrate with the lever before the pivoting work.

[Means for Solving the Problems]

As a means for achieving the above-mentioned object, in a door check lever in which two steel plates each having a contact resistance portion bulging outwardly are brought into close contact with each other and solidified, a pivot hole pivotally attached to a pillar side is provided. Each is formed by burring to stand outward and form a bearing part.
A synthetic resin is used as a material, and a dimension equivalent to the inner diameter of the bearing portion is used as an outer diameter, and a shaft hole into which a pivot can be fitted is provided, and
The height is made larger than the axial direction dimension of the bearing portion to be equal to the inner dimension of the U-shaped bracket that supports the lever,
Further, a bush provided with a bulged portion is formed on the outer circumference, and the bush is press-fitted into the shaft hole of the bearing portion to be integrally configured with the bearing portion of the lever. Further, a bulging portion that can be fitted into an annular groove formed on the inner circumference of the shaft hole of the bearing portion is formed so as to project from the outer circumference of the bush.

Further, in the bush, a bulging portion is formed so as to project from the outer periphery of the bush at a tip of a portion which is fitted and inserted into the shaft hole of the bearing portion and projects from the shaft hole.

Further, a flange having a diameter larger than the diameter of the bearing hole of the lever is formed to project at the rear end of the bush.

Furthermore, the bulging portion protrudingly formed on the outer periphery of the bush is an annular ridge.

It should be noted that the bulging portion formed to project on the outer periphery of the bush is a discontinuous projecting piece.

In addition, an annular groove is formed in an inner peripheral intermediate portion of a shaft hole provided at an end portion where the lever is pivotally attached to the pillar.

[Action]

In the pivotal connection part of the lever single plate member formed symmetrically on the front and back sides, the bearing part configuration is formed by projecting in the front direction by burring processing, and the rising corner part that forms the shaft hole is formed with a minute bent part. I will end up. An annular groove is formed on the inner circumference of the shaft hole of the bearing portion of the lever, which is completed by solidifying two single plate members of such a lever back to back. The formed annular groove may be used.

In the bearing portion of the lever described above, the bush made of synthetic resin, in particular, fluorinated ethylene resin, has a bulging portion within a range in which the diameter larger than the shaft diameter fitted to the outer circumference is a circle. It is a projecting piece, and if it is press-fitted into the shaft hole of the lever with a mechanical pressing force, the bush will instantaneously reduce its diameter by its own elasticity and pass through the shaft hole, and both ends of the bearing part. A bush having a protruding portion outward from the portion is integrally formed with the lever.

Thus, the bush fixedly fitted and fixed to the lever is brought into contact with both inner side surfaces of the bracket on the pillar side pivotally mounting the lever, thereby pivotally supporting the lever at a fixed position with respect to the bracket. Is something that can be done.

〔Example〕

Next, an embodiment of the present invention will be described with reference to the drawings. A steel plate 2 having contact resistance portions (21) bulging outwardly, respectively.
In the door check lever (20) in which the sheets are closely attached to each other in a solid state, the shaft holes (24) pivotally attached to the pillar side are erected outward by burring to form the bearing portion (23). On the other hand, the outer diameter is the same as the inner diameter of the bearing portion (23) made of synthetic resin,
A U-shaped bracket that has a shaft hole (2) into which a pivot shaft (31) can be fitted and that supports a lever (20) with a height larger than the axial dimension of the bearing portion (23). (30)
The bush (1) having a bulged portion (3) is formed on the outer periphery of the lever (20) by press fitting into the shaft hole (24) of the bearing portion (23). ) Bearing part (23).

Further, the bush (1) is provided with a bulging portion (3) which can be fitted into an annular groove (26) formed in the inner periphery of the shaft hole (24) of the bearing portion (23).
It is formed by projecting from the outer periphery of the.

Further, in the bush (1), the shaft hole (2
A bulging portion (3) is formed so as to protrude from the outer periphery of the bush (1) at the tip of the portion which is inserted into and inserted through the shaft hole (24) and is inserted into the shaft hole (24).

Further, a flange (3a) having a diameter larger than the diameter of the bearing hole (22) of the lever (20) is formed to project at the rear end of the bush (1).

Furthermore, the bulging portion (3) protrudingly formed on the outer periphery of the bush (1) is an annular ridge (3b).

The bulging portion (3) projectingly formed on the outer periphery of the bush (1) is a discontinuous projecting piece (3c).

In addition, an annular groove (26) is formed in an inner peripheral intermediate portion of a shaft hole (24) provided at an end portion where the lever (20) is pivotally attached to the pillar.

Further, the structure of the bearing portion (23) of the lever (20) will be described in detail. In the pivotal attachment portion of the single plate member of the lever (20) that is symmetrically formed on the front and back sides, the protrusion is formed in the front direction by burring. In the bearing portion (23) structure, a bent portion (24 ') having a fine rising corner portion forming the shaft hole (24) is formed. 2 of such single plate members of lever (20)
An annular groove (26) is formed on the inner circumference of the shaft hole (24) of the bearing (23) of the lever (20) completed by solidifying the sheets back to back.

In the figure, reference numeral (31) indicates a pivot, and (32) indicates checking means.

[Effect of device]

As described above, in the lever bearing portion, the synthetic resin,
In particular, a bush made of fluorinated ethylene resin has a bulging part that protrudes within the range of a circle line whose diameter is larger than the shaft diameter that fits on the outer circumference. If the bush is pressed into the shaft hole of the lever with pressure, the bush has a unique elasticity that allows the bush to instantaneously reduce in diameter and pass through the shaft hole, so that the bearing part has a protruding part outward from both ends. The effect that it is constructed integrally with the lever, and once the bush and the shaft hole of the lever are combined, they become inseparable, which assists the pivotability of the lever and the bracket and allows them to rotate in a fixed position. There is something.

[Brief description of drawings]

1 is a plan view of a door check mechanism, FIG. 2 is an enlarged cross-sectional view of a main part of a check lever, FIG. 3 is an enlarged cross-sectional view of a bearing portion, and FIG. 4 is a cross-sectional view showing each embodiment of a bush.
(A) is a cross-sectional view of a bulge portion provided on the outer circumference of the tip,
(A) is a cross-sectional view of a bulge portion provided on the intermediate outer periphery,
(C) is a cross-sectional view of a bulge portion provided on the outer circumference of each of the middle and the tip, and (D) is a cross-sectional view of a bulge portion provided on the outer circumference of the tip and a flange at the rear end. Is a cross-sectional view of the one with a flange at the rear end and a bulge at the middle outer circumference,
Is a cross-sectional view of a flange at the rear end and a bulge on each outer periphery of the tip, FIG. 5 is an enlarged cross-sectional view of the bush, and FIG. 6 is an enlarged cross-sectional view of a portion where the lever is pivotally attached to the bracket. . (1) ... bush, (2) ... shaft hole, (3) ... bulge, (3a) ... flange, (3b) ... annular groove, (3c)
...... Projecting piece, (20) …… Lever, (21) …… Contact resistance part, (22) …… Pivot hole, (23) …… Bearing part, (24) ……
Shaft hole, (24 ') …… bent part, (26) …… annular groove, (3
0) …… Bracket, (31) …… Axis.

Claims (7)

[Scope of utility model registration request] 1. A door check lever in which two steel plates, each having a contact resistance portion bulging outwardly, are closely adhered to each other in a back-to-back state to be solidified, and axial shafts pivotally attached to the pillar side are respectively formed by burring. The bearing part is formed by standing upright toward the inner side of the bearing part and, apart from this, has a shaft hole into which the pivot can be fitted and which has a diameter equal to the inner diameter of the bearing part and has an outer diameter which is the same as that of the bearing part. Is set to be larger than the axial dimension of the bearing portion to be equal to the inner dimension of the U-shaped bracket that supports the lever, and further, a bush having a bulged portion is formed on the outer periphery to form a shaft hole of the bearing portion. A lever pivot joint structure for a vehicle door check mechanism, characterized in that the lever pivot joint structure is integrally formed with a lever bearing portion by press fitting. 2. A door check for an automobile according to claim 1, wherein a bulging portion which can be fitted in an annular groove formed on the inner circumference of the shaft hole of the bearing portion is formed so as to project from the outer circumference of the bush. Pivoting structure of lever in mechanism. 3. A bush, wherein a bulge portion is formed so as to project from the outer periphery of the bush at a tip of a portion projecting from the shaft hole by being inserted into and inserted into the shaft hole of the bearing portion. And 2. A lever pivot structure in the vehicle door check mechanism described in (2) and (2). 4. A lever pivot attachment in a vehicle door check mechanism according to claim 1.2 or 3, characterized in that a flange having a diameter larger than a diameter of a bearing hole of the lever is formed at the rear end of the bush. Construction. 5. The structure for pivotally attaching a lever in a vehicle door check mechanism according to claim 1.2.3 and 4, wherein the bulging portion projectingly formed on the outer periphery of the bush is an annular ridge. 6. The structure for pivotally attaching a lever in a vehicle door check mechanism according to claim 1.2.3.4 and 5, wherein the bulging portion projectingly formed on the outer periphery of the bush is a discontinuous projecting piece. 7. A lever in a vehicle door check mechanism according to claim 1, wherein an annular groove is formed in an inner peripheral intermediate portion of a shaft hole provided at an end portion where the lever is pivotally attached to the pillar. Pivot structure.