JP2003336424A - Door check device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a door check device preventing cushion rubber from being damaged by a cushion stopper and a stopper plate when a door is open to its maximum opening, while also preventing rattling noises. <P>SOLUTION: The door check device includes a resistance arm pivotally attached to a vehicle body at one end and having a lock pin at the other and one or more thick resistance parts in its middle; a door checker having a shoe which makes frictional contact with the resistance arm including the thick resistance parts, the door checker being secured to the door pivotally attached to the vehicle body, in such a way that the door checker is capable of sliding movement relative to the resistance arm; and the cushion rubber and the stopper plate located between the door checker and the lock pin at the other end of the resistance arm and fitted over the resistance arm from the door checker side in that order. The metallic cushion stopper is located in the vicinity of the door-checker side end face of the cushion rubber and is embedded into the cushion rubber. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door check device that regulates the opening of a vehicle door.

[0002]

2. Description of the Related Art A door check device of this type is generally equipped with a resistance plate having a stopper plate at its tip end and at least one thick part at its middle end on the vehicle body side. A door checker, through which the resistance arm is inserted, is fixed to the door side pivotally attached to the main body. The resistance arm is further positioned between the stopper plate and the door checker, slidably attached with a cylindrical cushion rubber whose one end surface contacts the stopper plate, and the end surface of this cushion rubber on the door checker side. A cushion stopper made of metal is fixed to the. The door checker includes a plurality of shoes slidingly contacting the front and back of the resistance arm, an elastic member that presses and biases the plurality of shoes toward the resistance arm, and a metal member that houses the shoe and the elastic member and is fixed to the door. And a casing.

This door check device regulates the door opening stepwise at the position where the shoe of the door checker elastically contacts the resistance portion of the resistance arm. And when the door is fully opened,
The casing of the door checker collides with the cushion stopper to elastically deform the cushion rubber in the compression direction. At this time, the cushioning action of the cushion rubber reduces the opening speed of the door, and the door is quickly stopped at the maximum opening. The cushion stopper functions to prevent the meat at the door checker side end of the cushion rubber from flowing toward the periphery of the door checker when the cushion rubber is elastically deformed.

However, this conventional door check device is used as a cushion stopper when the cushion rubber is elastically deformed in the compression direction while being sandwiched between the cushion stopper and the stopper plate when the door is opened to the maximum opening. The stopper plates fit into both ends of the cushion rubber. Therefore, the cushion rubber is damaged by the peripheral portions of the cushion stopper and the stopper plate,
As a result of long-term use, it may tear and come off. There is also a problem that abnormal noise occurs when the casing of the door checker and the cushion stopper, both of which are made of metal, collide with each other.

[0005]

It is an object of the present invention to provide a cushion stopper and a stopper plate when the door is opened to the maximum opening.
An object of the present invention is to obtain a door check device in which the cushion rubber is not damaged and no abnormal noise is generated.

[0006]

SUMMARY OF THE INVENTION The door check device of the present invention has one end pivotally attached to the vehicle body side, and the other end having a retaining pin.
A resistance arm having one or more thick resistance parts in the middle portion;
A door checker having a shoe that makes frictional contact with the resistance arm including the thick resistance portion and fixed to a door side pivotally attached to the vehicle body and capable of sliding relative to the resistance arm;
In a door check device having a cushion rubber and a stopper plate, which are located between the door checker and the retaining pin at the other end of the resistance arm and are fitted to the resistance arm in order from the door checker side, the inside of the cushion rubber is provided. In addition, a cushion stopper made of metal is located near the end face of the cushion rubber on the door checker side and embedded.

The cushion rubber has a tapered column portion that reduces in diameter on the stopper plate side, and the stopper plate is
It is preferable that the resistance arm has a shape larger than the minimum diameter of the cushion rubber when viewed from the longitudinal direction. Furthermore, it is desirable that the stopper plate has a rounded R.

In the door check device of the present invention, one end is pivotally attached to the vehicle body side, the other end has a retaining pin, and the resistance arm has one or more thick resistance portions in the middle portion; A door checker that has a shoe that makes frictional contact with a resistance arm including the thick resistance portion and is fixed to the door side pivotally attached to the vehicle body and that can slide relative to the resistance arm; In a door check device having a cushion rubber and a stopper plate, which are located between the other end of the arm and the retaining pin and are fitted to the resistance arm in order from the door checker side, the cushion rubber is compressed to the stopper plate side. The stopper plate has a diameter that is larger than the minimum diameter of this cushion rubber when viewed from the longitudinal direction of the resistance arm. It is characterized in.

It is preferable that the stopper plate has a rounded R.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIGS. 1 and 2, a resistance arm 10 having a substantially rectangular cross section has a flat plate-shaped portion 10a on the one end (pivot end) side and the other end ( The tip end side flat plate-like portion 10b is provided on the tip end side),
The abutment end side flat plate portion 1 is provided between a and the tip side flat plate portion 10b.
0a side, thick part (resistive part) 10B1, thin part 1
0A and a thick portion (resistive portion) 10B2. The thick portions 10B1 and 10B2 of the resistance arm 10 may be formed by forming irregularities on a pair of plate bodies.

A pivot hole 11 is formed at the end of the pivot end plate 10a so that it is pivotally attached to the vehicle body (not shown). The cushion rubber 2 is attached to the tip side flat plate portion 10b.
0 is slidably fitted. This cushion rubber 20
Is a large-diameter cylindrical portion 21 as shown in FIGS.
And a tapered columnar portion 22 whose diameter decreases toward the tip side. The cushion rubber 20 has a shaft portion through which the resistance arm 10 is inserted.
3 is bored, and the distal end side flat plate portion 10b is loosely fitted in the insertion hole 23.

A circular metal cushion stopper 24 is embedded in the cushion rubber 20 by insert molding. As shown in FIGS. 2 and 4, the cushion stopper 24 is on the thick portion 10B2 side. It is located near the end face of. The cushion stopper 24 is in close contact with the cushion rubber 20 and cannot move relative to the cushion rubber 20. The rectangular hole 25 formed in the cushion stopper 24 is concentric (similar to) the insertion hole 23 and smaller than the insertion hole 23, and the tip side flat plate portion 10b of the resistance arm 10 is slidably fitted therein. .

A square hole 13a formed in the center of a circular stopper plate 13 is fitted in the tip side flat plate portion 10b, and is formed in the tip end portion of the tip side flat plate portion 10b. The stopper plate 13 is prevented from coming off by inserting and fixing the fixing pin 12 into the pin insertion hole 14. The diameter of the stopper plate 13 is set to be larger than the diameter of the end surface of the cushion rubber 20 on the side of the fixed pin 12, and the peripheral edge thereof is rounded (see FIGS. 2 and 4). ). That is, the stopper plate 13 is larger than the minimum diameter of the cushion rubber 20 when viewed from the longitudinal direction of the resistance arm 10.

The door checker 30 through which the resistance arm 10 is inserted is fixed to a door (not shown) pivotally attached to the vehicle body. This door checker 30 has a resistance arm 10.
It suffices that it provides an appropriate movement resistance when sliding relative to the door checker 30 of the illustrated embodiment.
Is a casing 33 having an attachment hole 31 to the door and an insertion hole 32 into which the resistance arm 10 is inserted, a cover 36 having the attachment hole 34 and the insertion hole 35, and the casing 3
The elastic member 37 is housed in the housing recess 33a of No. 3, and the pair of shoes 39 is housed in the shoe housing opening 38 of the elastic member 37.

As shown in FIG. 5, each shoe 39 has a long side contact portion 39a that contacts one of the front and back sides of the resistance arm 10 and a short side contact portion that contacts one of the left and right end surfaces of the resistance arm 10. 39b and has a substantially L shape,
The outer shape is formed in a substantially semicircular shape. Long side contact part 39
Each of a and the short side contact portion 39b has a middle portion in the thickness direction having a middle height. The pair of shoes 39 have a phase difference of 180 ° (that is, one of them is rotated 180 ° with respect to the center of the resistance arm 10 with respect to the other), and the long side contact portion 39a of each shoe 39 is connected. Is in contact with one of the front side and the back of the resistance arm 10 and the short side contact portion 39b is in contact with one of the left end surface and the right end surface of the resistance arm 10, respectively. Has a substantially circular shape.

The shoe housing opening 38 of the elastic member 37 has a pair of shoes 3 whose outer shape is thus generally circular.
Corresponding to 9, it has a circular shape. Then, on the inner peripheral surface of the shoe housing opening 38 and the outer peripheral surface of the shoe 39, a convex portion (annular protrusion) 38a that fits with each other in a fitted state,
A recess (semi-annular recess) 39c is formed. The elastic member 37 is made of, for example, a solid and elastic rubber material, and the shoe 39 is made of a material having excellent wear resistance such as a synthetic resin material or a metal.

The operation of the door check device having the above structure is as follows. When you open and close the door, the door checker 30
Moves relative to the resistance arm 10 in the longitudinal direction of the resistance arm 10. When the door is fully closed, the door checker 30 at the position shown by the phantom line in FIG. 2 moves to the fixing pin 12 side when the door is in the half-opened state, and the shoe 39 has the thick portion 10
It goes over B1 and fits into the thin portion 10A (not shown). When the shoe 39 gets over the thick wall portion 10B1, the door becomes heavy, and when the opening operation of the door is stopped while the shoe 39 is fitted in the thin wall portion 10A, the door is held in the half open state. When the door is further opened and the door is fully opened, the shoe 39
Moves over the thick portion 10B2 to the position shown by the solid line in FIG. 2, and the casing 33 collides with the cushion rubber 20. Then, as shown in FIG. 4, the cushion rubber 20
Is sandwiched between the casing 33 and the stopper plate 13 and elastically deforms in the compression direction. At this time, the cushioning action of the cushion rubber 20 reduces the opening speed of the door, and restricts further opening of the door. At this time, since the pair of shoes 39 is constantly pressed not only in the front-back direction of the resistance arm 10 but also in the left and right end surface directions, the resistance arm 10 is maintained at a constant pressure regardless of the state of the resistance arm 10.
Contact the front and back of and the left and right end faces. Therefore, abnormal noise is unlikely to occur. Further, in the illustrated embodiment, a pair of shoes 39
Since the outer shape of the resistance arm 10 and the shoe housing opening 38 of the elastic member 37 for housing the same are circular and exert elasticity not only in the front / back direction of the resistance arm 10 but also in the left / right end surface direction, but also in the twisting direction, the resistance arm 10 It is also possible to prevent or reduce the generation of abnormal noise due to the twisting. FIG. 7 shows how the pair of shoes 39 move within the shoe housing opening 38 of the elastic member 37. It can be seen that the elastic member 37 bends and presses the pair of shoes 39 not only in the front and back directions of the resistance arm 10 but also in the left and right end surface directions.

In the door check device of this embodiment, the diameter of the stopper plate 13 is equal to the cushion rubber 20.
Since it is larger than the diameter of the end surface of the tapered column portion 22 of the casing 33, the casing 33 collides with the cushion rubber 20 when the door is fully opened,
Even if the cushion rubber 20 elastically deforms between the casing 33 and the stopper plate 13 and the end portion of the cushion rubber 20 on the stopper plate 13 side elastically deforms, the cushion rubber 20 does not contact the peripheral edge of the stopper plate 13 (see FIG. 4). . Therefore, the stopper rubber 13 is used by the stopper plate 13.
There is no danger of being damaged. Furthermore, since R is attached to the entire circumference of the peripheral edge of the cushion rubber 20, by any chance,
Even if the end portion of the cushion rubber 20 on the stopper plate 13 side is largely elastically deformed and this portion contacts the peripheral edge portion of the stopper plate 13, the cushion rubber 20 is not damaged by the peripheral edge portion of the stopper plate 13.

Further, the cushion stopper 2 of this embodiment
Different from the conventional device existing between the cushion rubber and the door checker, 4 is embedded inside the cushion rubber 20 and cannot move relative to the cushion rubber 20. Therefore, even if the cushion rubber 20 is elastically deformed, the inside of the cushion rubber 20 is not damaged by the cushion stopper 24. Further, since the casing 33 of the door checker 30 collides with the rubber cushion rubber 20, no abnormal noise is generated.

In the present invention, shapes and structures other than the shapes and structures of the cushion rubber 20, the cushion stopper 24 and the stopper plate 13, that is, the specific shapes and structures of the resistance arm 10 and the door checker 30 do not matter. The illustrated embodiment is an example.

[0021]

As described above, in the door check device of the present invention, even if the door is opened to the maximum opening, the cushion rubber is not damaged by the cushion stopper and the stopper plate, and an abnormal noise is generated. Nothing.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an embodiment of a door check device according to the present invention.

FIG. 2 is a vertical sectional side view of the same assembled state.

FIG. 3 is a perspective view of a cushion rubber.

FIG. 4 is a vertical cross-sectional side view showing a state of cushion rubber and its peripheral members when the door is fully opened.

FIG. 5 is a perspective view of a single shoe.

FIG. 6 is a sectional view of a door checker.

FIG. 7 is a front view of a state in which a shoe is held by an elastic member.

[Explanation of symbols]

10 resistance arm 10a Pivot end side flat plate part 10b Tip side flat plate part 10A thin part 10B1 10B2 Thick part (resistor part) 11 pivot holes 20 cushion rubber 21 Cylindrical part 22 Tapered column 23 insertion hole 24 Cushion stopper 25 square hole 30 door checker 31 mounting holes 32 insertion holes 33 casing 33a storage recess 34 mounting holes 35 insertion holes 36 cover 37 Elastic member 38 shoe storage opening 38a convex part 39 shoe 39a Long side contact part 39b Short side contact part 39c recess

Claims (5)

[Claims] 1. A resistance arm, one end of which is pivotally attached to the vehicle body side, the other end of which has a retaining pin, and the middle portion of which has at least one thick resistance portion; the thick resistance portion being included. A door checker having a shoe that makes frictional contact with the resistance arm and fixed to the door side pivotally attached to the vehicle body and capable of sliding relative to the resistance arm; the door checker and the other end of the resistance arm being pulled out. A door check device including a cushion rubber and a stopper plate, which are located between a stop pin and fitted in order from the door checker side to the resistance arm, wherein an end surface of the cushion rubber on the door checker side is provided inside the cushion rubber. A door check device characterized in that a cushion stopper made of metal is embedded near the door. 2. The door check device according to claim 1, wherein the cushion rubber has a tapered column portion having a reduced diameter on the stopper plate side, and the stopper plate has the cushion arm when viewed from the longitudinal direction of the resistance arm. Door check device with a shape larger than the minimum diameter of rubber. 3. The door check device according to claim 1 or 2, wherein the stopper plate has a rounded R on its periphery. 4. A resistance arm, one end of which is pivotally attached to the vehicle body side, the other end of which has a retaining pin, and the middle portion of which has at least one thick resistance portion; the thick resistance portion is included. A door checker having a shoe that makes frictional contact with the resistance arm and fixed to the door side pivotally attached to the vehicle body and capable of sliding relative to the resistance arm; the door checker and the other end of the resistance arm being pulled out. In a door check device having a cushion rubber and a stopper plate, which are located between the stopper pin and fitted to the resistance arm in order from the door checker side, the cushion rubber has a tapered column portion whose diameter is reduced to the stopper plate side. However, the stopper plate has a shape larger than the minimum diameter of the cushion rubber when viewed in the longitudinal direction of the resistance arm. 5. The door checking device according to claim 4, wherein the stopper plate has a rounded R.