JP3052059B2 - Car door checker - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle interposed between a vehicle body and a door to control a door opening / closing torque.
The present invention relates to an automobile door checker that holds a door at a predetermined opening position, and particularly relates to a case that is fixed to one of a vehicle body and a door, and that the case is movably penetrated to the other of the body and the door. A check plate to be connected is provided, and a pair of shoes facing each other with the check plate sandwiched in the thickness direction and a spring that exerts elasticity to press the shoes against the check plate are housed in the case. The present invention relates to an improvement in which a check notch is formed on both sides in the thickness direction of the check plate so that the shoe engages with the door at a predetermined opening degree.

[0002]

2. Description of the Related Art Such a door checker is, for example, a real hokkaido 7
It is already known, as disclosed in -36041.

[0003]

In such a conventional door checker, when the shoe engages with the positioning notch of the check plate with the repulsive force of the spring in order to hold the door at a predetermined opening position, the engagement impact is generated. This may cause the shoe to vibrate and touch the inner surface of the case to generate abnormal noise.

An object of the present invention is to provide the door checker capable of preventing such abnormal noise.

[0005]

In order to achieve the above object, according to the present invention, in the door checker, each of a pair of shoes is provided with one guide protruding wall facing each other across a check plate in a width direction thereof. On the other hand, the first feature is that the check plate is provided with a wide portion which enters between the guide projecting walls of the pair of shoes and presses the shoes against the inner surface of the case when the shoes and the positioning notch are engaged. And

Further, the present invention has a second feature in that at least one of the wide portions of the shoe and the check plate is configured to be elastically deformable in addition to the above features.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below based on embodiments of the present invention shown in the accompanying drawings.

FIG. 1 is a perspective view of a main part of an automobile equipped with a door checker of the present invention, FIG. 2 is a partially longitudinal plan view of the door checker, FIG. 3 is a view taken in the direction of arrow 3 in FIG. 2, FIG. 4 and FIG. 7 is a sectional view taken along lines 4-4 and 5-5 in FIG. 2, FIG.
FIG. 3 is an exploded perspective view of a main part of the door checker.

First, referring to FIG.
A door D is rotatably mounted via a hinge H so as to open and close the entrance, in order to provide the door D with an appropriate opening / closing resistance and a plurality of open holding positions between the body B and the door D. Is attached.

As shown in FIGS. 1 to 3, the door checker C has a case 1 fixed to the inner surface of an end wall of a door D by bolts 2. The case 1 includes a box-shaped case main body 1a having one open end, and a cover 1b which is sandwiched between the case main body 1a and the inner surface of the end wall of the door D while covering the open end. The cover 1b and the case main body 1a are provided with through-holes 4,5 coaxial with the through-hole 3 opening in the end wall of the door D, and penetrate these three through-holes 3,4,5. The base end of the check plate 6 is rotatably connected to the bracket 7 via a pivot 8,
The bracket 7 has a pivot 8 arranged in parallel with the pivot axis of the hinge H, and is fixed to the body D by a bolt 9.

The check plate 6 is composed of a plate body 6a made of a steel plate directly connected to the bracket 7, and a cover 6b made of a synthetic resin molded around the periphery of the plate body 6a except for both ends. Be composed. The cover 6b is formed so that the plate thickness of the check plate 6 gradually increases from the base end side (the bracket 7 side) to the free end side, and the thickness of each of the intermediate portion and the free end side end portion thereof. The first and second notches 10, 10; 11, 1
1 is provided, and a stopper 12 is provided on the plate body 6a adjacent to the second notches 11, 11 on its free end side.
Further, the cover 6b has protrusions 18, which protrude on both sides in the width direction at the intermediate portion where the first notches 10, 10 are formed.
18 (see FIGS. 2, 3 and 5) are formed, whereby the intermediate portion is made to be a wide portion 19.

The stopper 12 is a steel plate stopper plate 14 fixed to the plate body 6a with a pin 13.
And a stopper rubber 15 attached to the stopper plate 14 and facing the second notches 11, 11.
A large number of cushion projections 15a protrude from the end faces of the stopper rubber 15 facing the second notches 11,11.

As shown in FIGS. 2, 4 and 7, a pair of synthetic resin shoes 16, 16 are arranged in the case 1 so as to sandwich the check plate 6 in the thickness direction thereof.
And a pair of rubber springs 17, 17 which resiliently press the shoes 16, 16 against both side surfaces of the check plate 6, respectively.

On opposite front sides of the shoes 16, 16, semi-cylindrical engaging ridges 16a extending in the width direction of the check plate 6 so as to slidably contact both side surfaces in the thickness direction of the check plate 6, respectively. , 16a and check plate 6
Each of the guide projecting walls 16b, 16b, which is slidably in contact with both side surfaces in the width direction, is formed.

On the rear side of the shoes 16, 16, recesses 16c, 16c with which rubber springs 17, 17 are engaged are provided.

The dimensions of each part of the shoes 16, 16 are such that there is a gap g between the shoes 16, 16 and the inner surface of the case 1 for facilitating attachment of the shoes 16, 16 to the case 1. It is set to be able to
The height h of the projection 18 is set slightly larger than the gap g.

Next, the operation of this embodiment will be described.

In the closed state of the door D, the pair of shoes 16, 16 of the door checker C are moved by the elastic force of the rubber springs 17, 17 at the place where the plate thickness of the check plate 6 is relatively thin, and on both sides of the cover 6b. It is pressed against the surface.

When the door D is opened from this state, the engaging ridges 16a, 16a of the shoes 16, 16 are correspondingly opened.
Slides on both sides of the coating 6b in the direction of increasing the thickness,
Accordingly, the rubber springs 17 are compressed, so that the pressing force of the shoes 16, 16 against the check plate 6 is increased by the increase of the repulsive force, whereby the opening torque of the door D is appropriately increased. .

When the door D is opened to a predetermined intermediate opening degree and the shoes 16, 16 come to a position facing the first notches 10, 10, the shoes 16, 16 are resilient by the rubber springs 17, 17. The engagement ridges 16a, 16a are engaged with the notches 10, 10, and the engagement force can hold the door D at the intermediate opening position.

In this case, the engaging ridge 1 of the shoes 16
The engagement of the 6a, 16a with the first notches 10, 10 is carried out by the rubber springs 17, 17 with a strong repulsive force stored so far, so that the engaging impact force generated at that time is very large, This causes the shoes 16, 16 to vibrate, but in the present invention, the shoes 16, 16
As shown in FIG. 6, when the notches 10 and 10 are opposed to each other, the wide portion 19 of the check plate 6 is
6 and 16 enter between the opposing guide projecting walls 16b and 16b to expand them mutually and press against the inner surface of the case 1, so that a large frictional force is generated between the shoes 16 and 16 and the case 1. Occurrence and vibration of the shoes 16, 16 can be suppressed by this frictional force. Therefore, generation of noise due to these vibrations can be prevented.

By the way, the guide projection wall 1 by the wide portion 19
As described above, the height h of the projections 18, 18 on both sides of the wide portion 19 is set so that the shoes 16, 16 are securely pressed against the inner surface of the case 1 by the expansion between the shoes 6, 16b.
Although the gap g is set slightly larger than the gap g between the case 16 and the inner surface of the case 1, since the shoes 16, 16 and the cover 6 b of the check plate 6 are made of synthetic resin that is relatively easily elastically deformed, Of the wide portion 19 due to the elastic deformation of
Can smoothly pass between the two guide projecting walls 16b.

Therefore, when the opening force on the door D is further increased, the shoes 16, 16 are again brought into contact with the rubber spring 1.
When the case 1 is elastically received by the stopper rubber 15 while the case 1 is elastically received by the stopper rubber 15, the fully open position of the door D is defined. At this time, the shoes 16, 16 engage the engaging ridges 16a, 16a with the second positioning notches 11, 11 by the repulsive force of the rubber springs 17, 17, whereby the door D
Can be held at the fully open position.

The present invention is not limited to the above embodiment, and various design changes can be made without departing from the gist of the present invention. For example, the case 1 is fixed to the body B side,
The bracket 7 of the check plate 6 can be attached to the door D side. Further, the wide portion 19 can be provided at the position of the second positioning notch 11,11. In addition, a roller may be mounted on the shoe 16 instead of the engaging ridge 16a. Further, a metal spring can be used instead of the rubber spring 17.

[0025]

As described above, according to the first feature of the present invention, each of the pair of shoes is formed with one guide projecting wall facing each other with the check plate sandwiched in the width direction thereof, while the check plate is formed. The plate has a wide portion that enters between the guide projecting walls of the pair of shoes and presses these shoes against the inner surface of the case when the shoes and the positioning notch are engaged. When the check plate is engaged in a shock, the wide portion of the check plate presses the shoe against the inner surface of the case to suppress the vibration of the shoe due to the frictional force generated between the two, so that the noise caused by the vibration can be suppressed. Can be prevented from occurring.

According to the second feature of the present invention, at least one of the wide portion of the shoe and the check plate is configured to be elastically deformable, so that the shoe is reliably pressed against the inner surface of the case by the wide portion of the check plate. Along with
The wide portion can smoothly pass between the two guide protruding walls due to the elastic deformation of the shoe or the wide portion.

[Brief description of the drawings]

FIG. 1 is a perspective view of a main part of an automobile equipped with a door checker of the present invention.

FIG. 2 is a partial longitudinal plan view of the door checker.

FIG. 3 is a view taken in the direction of arrow 3 in FIG. 2;

FIG. 4 is a sectional view taken along line 4-4 in FIG. 2;

FIG. 5 is a sectional view taken along line 5-5 of FIG. 2;

FIG. 6 is a diagram illustrating the operation of the door checker.

FIG. 7 is a partially exploded perspective view of the door checker.

[Explanation of symbols]

 B Body D Door 1 Case 6 Check plate 10 Notch 16 Shoe 16a Engagement ridge 16b Guide projection wall 17 Spring 19 Wide part

Claims (2)

(57) [Claims] 1. A case (1) fixed to one of a body (B) and a door (D) of an automobile, and the body (B) and the door (D) movably penetrating the case (1). And a pair of shoes (16) opposed to each other with the check plate (6) sandwiched in the thickness direction thereof, and a pair of shoes (16) in the case (1). The springs (17) exhibiting resilience to be pressed against the check plate (6) are housed, and both sides in the thickness direction of the check plate (6) are
In a door checker for an automobile, in which a positioning notch (10) with which a shoe (16) is engaged at a predetermined opening of a door (D) is formed, a check plate (6) is attached to a pair of shoes (16) in a width direction thereof. One guide projection wall (16
b), the check plate (6) is inserted between the guide projecting walls (16a) of the pair of shoes (16) when the shoes (16) and the positioning notch (10) are engaged. Shoe (1
A door checker for an automobile, wherein a wide portion (19) for pressing the inner surface of the case (6) against the inner surface of the case (1) is provided. 2. The vehicle door checker according to claim 1, wherein at least one of the shoe (16) and the wide portion (19) of the check plate (6) is configured to be elastically deformable.