JPH0335827Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an improvement of an automobile door checker.

(Prior Art) Conventionally, as shown in FIGS. 1 and 2, door checkers for automobiles have a mail plate 2 whose one end is pivotally connected to the vehicle body by a hinge pin 1, and a door 4 connected to the vehicle body by a hinge pin 3. A configuration is adopted in which the mail plate 2 is inserted through openings 6a, 6a of a fixed case 5, and the mail plate 2 is held between guides 7, 7 inside the case 5.

By the way, as shown in FIG. 1, a door checker is provided in which the mail plate 2 has a gentle S-curve shape so that the center of the case 5 and the widthwise center of the mail plate 2 inside the case coincide regardless of the opening/closing position. Now, when the door 4 is opened, the inner edge 2a of the mail plate 2 is pulled out while contacting the peripheral edge a of the opening 6b of the case 5, and the guides 7, 7 are pulled out at the roof part (recessed part) 2b of the mail plate 2 in the half position. The pressure contact force becomes zero, and then the guides 7, 7
When this occurs, there is an offset l between the support point b of the mail plate 2 and the contact point c of the guides 7, 7 in relation to the connection point g of the door 4.

Therefore, when the guides 7, 7 hit the rising slope toward the full part 2c at point c, the force P in the extraction direction
is generated by the force of opening the door 4, and therefore,
Due to the force P in the extraction direction, the roof portion 2b of the mail plate 2 slides on the protrusion 7a of the guide 7 and moves in the right angle direction e, so that the outer edge 2d of the mail plate 2 comes into contact with the peripheral edge f of the opening 6b of the case 5. An abnormal noise occurs. Further, when the door 4 is closed, a similar noise is generated due to a force in the opposite direction.

(Purpose of the invention) This invention was devised to solve the above-mentioned conventional problems, and its purpose is to suppress the generation of abnormal noise by adding innovations to the roof part (recess) of the guide and mail plate. That is.

(Structure of the invention) Therefore, the present invention is based on the center line connecting the car body support point of the mail plate and the axial center point of the roof part in the half position of the mail plate, and the effect of the force acting on the roof part in the half position. The car body support point of the mail plate is set so that the lines coincide with each other, while the protrusion of the guide is provided perpendicularly to the center line, and the roof part is formed parallel to the protrusion of the guide. It is composed of

(Effect of the invention) According to the invention, the center line connecting the vehicle body support point of the mail plate and the axial center point of the half part in the half position of the mail plate, and the line of action of the force acting on the roof part in the half position While setting the car body support point of the mail plate so that it coincides with the center line, the protrusion of the guide is perpendicular to the center line, and the roof part of the mail plate is formed so as to be parallel to the protrusion of the guide. Therefore, in the half position, the line of action of the force acting on the mail plate coincides with the above center line, and the offset amount becomes zero, and the force in the extraction direction generated by the force of opening the door causes the mail plate to move in the right angle direction. Since it does not move, the occurrence of abnormal noise due to contact with the case is suppressed.

(Example) Components having the same configuration and operation as those in FIGS. 1 and 2 are designated by the same numbers, and the description thereof will be omitted.

As shown in FIGS. 3 and 4, the vehicle body support point b of the mail plate 20, which has a gentle S-curve shape as in FIG. The vehicle body support point b of the mail plate 20 is set so that the center line L connecting the (contact point) c and the line of action of the force P acting on the roof portion in the half position coincide with the center line L For guide 70
The protrusion 70a of the guide 70 is provided in the orthogonal direction, and the roof portion 20b is formed parallel to the protrusion 70a of the guide 70.

That is, the protrusion 7a of the conventional guide 7 (FIG. 1)
are simply provided to be parallel to the case 5 for convenience of design, and since the roof portion 2b is also formed to be parallel to the protrusion 7a of the guide 7, the protrusion 7a of the guide 7 and The roof portion 2 was not inclined at an angle θ (90 degrees) with respect to the center line L, but at an angle θ′ in any direction.

Therefore, as described above, the roof portion 2b of the mail plate 2 is pushed against the guide 7 by the force P in the extraction direction.
It was moving in the right angle direction e by sliding over the protrusion 7a.

On the other hand, in this case, with the above-described configuration, the center line L connecting the support point b of the mail plate 20 and the contact point c of the guide 70 coincides with the line of action of the force P in the extraction direction, and the offset amount is reduced. It becomes zero.

Then, when door 4 is opened, mail plate 2 appears.
0 is extracted from the openings 6a and 6b of the case 5,
When the pressure contact force of the guides 70, 70 becomes zero at the roof part 20b in the half position of the mail plate 20, and then the guides 70, 70 hit the rising slope of the full part (convex part) 20c, the connecting point g of the door 4 and According to the relationship, the center line L passing through the support point b of the mail plate 20 and the contact point c of the guides 70, 70
Since the line of action of the force P acting on the two coincides with each other, there is no difference between the two as in the conventional case.

Therefore, when the guides 70, 70 hit the rising slope of the full part 20c at point c, a force P in the extraction direction is generated by the force that opens the door 4, but since the safety set is zero, the mail plate 20 is moved in the right angle direction e. Since it does not move to mail plate 2
The outer edge 20d of 0 is the periphery f of the opening 6b of the case 5.
This means that there is no contact with the metal, and no abnormal noise is generated.

Note that when the door 4 is closed, the mail plate 20 does not come into contact with the case 5, so no abnormal noise is generated.

[Brief explanation of the drawing]

FIG. 1 is a plan sectional view of a conventional door checker, FIG. 2 is a perspective view of the roof portion of the mail plate shown in FIG. 1, FIG. 3 is a plan sectional view of the door checker according to the present invention, and FIG. FIG. 3 is a perspective view of the roof portion of the mail plate. 1, 3...Hinge pin, 4...Door, 5...Case, 6a, 6b...Opening, 20...Mail plate, 20b...Roof part, 20c...Full part,
70...Guide, 70a...Protrusion, b...Vehicle body support point, c...Axial center point of mail plate, P
...force acting on the mail plate in the half position.

Claims (1)

[Scope of Claim for Utility Model Registration] A mail plate whose one end is rotatably supported by the vehicle body and whose other end is housed in the door; a case which has an opening through which the mail plate is inserted and is fixed to the door; It consists of a pair of guides that are built into the case and slidably sandwich the mail plate, and the mail plate comes into sliding contact with one side of the opening of the case when the door is opened and closed. In a door checker equipped with a roof part for braking the opening/closing of the door in the half position of The vehicle body support point of the mail plate is set so that the line of action of the force acting on the roof portion coincides with the line of action of the force acting on the roof portion, and the protrusion of the guide is provided in a direction perpendicular to the center line in the half position, A door checker for an automobile characterized in that a roof portion is formed parallel to a protrusion of a guide in a half position.