JP2001349122A - Door checking apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door checking apparatus which is produced at a low cost and is excellent in low-temperature resistance. SOLUTION: The door checking apparatus is comprised of rubber cushions 114 and 115 as first and second biasing members, respectively, and metallic springs 121 and 123. The rubber cushions are arranged in a closed-end recess of a case 2 and in spaces formed on rear sides of first and second shoes 12 and 13, respectively, and have holes 114a and 115a formed therein in a rotational shaft direction of an arm 3. The metallic springs are arranged in the holes 114a and 115a of the cushions 114 and 115, respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a body bracket fixed to a vehicle body, and an arm having one end rotatably mounted on the body bracket, the arm having a longitudinally extending thickness in a rotation center axis direction. An arm having a locking recess formed by changing over the direction,
A case provided with a hole for allowing the arm to penetrate through the bottomed recess, the case being provided on the bottom wall of the bottomed recess attached to the door side and provided at the center; and the other end of the arm. A retaining member for preventing the arm from falling out of the bottomed concave portion of the case, and disposed in the bottomed concave portion of the case so as to sandwich the arm from the rotation center axis direction of the arm, First and second shoes whose sliding contact with the arm can be engaged with and disengaged from the locking concave portion, and in the bottomed concave portion of the case and on the back side of the first and second shoes, respectively. A first and a second urging member disposed to urge the first and second shoes toward the arm; and a hole formed in the bottomed recess while covering an opening of the bottomed recess. And a cover formed with a hole through which the arm is inserted at a position facing the Door check device.

[0002]

2. Description of the Related Art The structure of a conventional door check device will be described with reference to FIGS. Here, FIG. 4 is a perspective view of a conventional door check device, FIG. 5 is a sectional view taken along a cutting line AA in FIG. 4, and FIG. 6 is an exploded perspective view of a main part in FIG.

In these figures, a body bracket 1 is shown.
Is mounted on the vehicle body side, and the case 2 is mounted on the door plate D side. The case 2 has a bottomed concave portion 2c formed at the center, and a base portion 2b attached to the door side is provided on both sides of the bottomed concave portion 2c. In addition, bottomed recess 2c
The bottom wall is provided with a hole 2a for the arm 3 to penetrate into the bottomed recess 2c. The case 2 is produced by press molding.

The arm 3 has one end rotatably attached to the body bracket 1 by using a pin 8 and changes the thickness of the arm 3 in the rotation center axis direction (axial direction of the pin 8) in the longitudinal direction. As shown in FIGS. 4 and 6, a locking concave portion 3a and a convex portion 3b are formed. The arm 3 in this conventional example is a main body 3 made of metal.
c and a resin layer 3d covering the main body 3c to improve the aesthetic appearance of the arm 3 and reduce the sliding resistance. The locking concave portion 3a and the convex portion 3b are formed by changing the thickness of the resin layer 3d. It is formed by doing.

The other end of the arm 3 protrudes from the hole 2 a of the bottomed concave portion 2 c of the case 2, and a stopper plate 5 as a retaining member is attached thereto via a stopper cushion 4. The bottomed recess 2c is prevented from falling off.

[0006] In the bottomed concave portion 2c of the case 2, an arm 3 is provided.
The first and second shoes 12 and 13 of the same shape are opposed to each other so as to sandwich the arm 3 with the sliding portions 12 a and 13 a from the direction of the rotation center axis of the case 2. In the space on the back side of the first and second shoes 12, 13, artificial or artificial members are provided as first and second urging members for urging the first and second shoes 12, 13 toward the arm 3, respectively. Block-shaped cushions 14 and 15 made of a synthetic rubber material are arranged.

The opening 2e of the bottomed recess 2c of the case 2 is covered with a metal cover 10. The cover 10 is formed with a hole 10 a through which the arm 3 is inserted, at a position facing the hole 2 a of the bottomed concave portion 2 c of the case 2.

A seal member 11 made of an elastic resin or rubber is attached to the hole 10a of the cover 10 in order to prevent dust and foreign matter from entering the cover 10.
The seal member 11 is formed with flexible portions 11b that press against the upper and lower surfaces of the arm 3, respectively.
A slit 11a through which the arm 3 is inserted is formed between b.

The operation of the door check device having the above configuration will be described. First, when the door is moved in the opening direction from the state in which the door is closed, the case 2 is moved with the movement in the opening direction.
Moves rightward in FIG. As a result, the sliding portions 12a, 13a of the shoes 12, 13 get over the convex portion 3b of the arm 3, and the first locking concave portion 3a
Engages. This position is a half-open position of the door, and the opening and closing of the door is once regulated.

When the door is further moved in the opening direction, the sliding portions 12a and 13a of the shoes 12 and 13 ride over the next convex portion 3b of the arm 3 and engage with the second locking concave portion 3a. This position is the fully open position of the door,
The bottomed concave portion 2c is in contact with the stopper cushion 4,
Doors are forbidden for further opening.

When the door is moved in the closing direction from the fully open position, the sliding portions 12a, 13a of the shoes 12, 13 advance over the convex portion 3b of the arm 3 in the direction opposite to the opening direction, and move to the half open position. Through this, it returns to the fully closed position.

[0012]

In the door check device having the above structure, the first and second shoes 12, 13 are urged toward the arm 3 as first and second urging members.
Block-shaped cushions 14 and 15 are used.

Since the cushions 14 and 15 are made of artificial or synthetic rubber, the cushions 14 and 15 have no elasticity in a cold region, so that the sliding portions 12a and 13a of the shoes 12 and 13 do not easily get over the convex portion 3b of the arm 3.

That is, in a cold region, there is a problem that the opening / closing force of the door becomes considerably heavy before and after the half-open position as compared with the warm region. Further, in order to eliminate the difference in the opening and closing force of the door between the cold region and the warm region, a metal coil spring which has almost the same urging force even when the temperature changes is used as the first and second urging means. However, in order to urge the first and second shoes only with the metal coil spring, a large metal coil spring is required, which increases the cost and increases the size of the door check device. There is.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a door check device which is low in cost and excellent in cold resistance.

[0016]

According to a first aspect of the present invention, there is provided a body bracket fixed to a vehicle body and an arm having one end rotatably attached to the body bracket. By changing the thickness in the direction of the rotation center axis in the longitudinal direction, the arm formed with the locking concave portion and the bottom wall of the bottomed concave portion attached to the door side and provided in the center are provided with this. A case in which a hole for penetrating the arm is provided in the bottomed recess, and a retaining member provided on the other end side of the arm to prevent the case from falling out of the bottomed recess. A first portion disposed within the bottomed concave portion of the case so as to sandwich the arm from the direction of the rotation center axis of the arm, and a sliding contact portion with the arm can be disengaged from the locking concave portion.
And a second shoe, and are arranged in the bottomed recess of the case and in the space on the back side of the first and second shoes, respectively, and urge the first and second shoes toward the arm. A first and a second urging member, and a cover that covers an opening of the bottomed recess and has a hole through which the arm is inserted at a position facing a hole formed in the bottomed recess. The first and second door check devices.
Wherein the biasing member comprises a rubber cushion provided with a hole in the direction of the rotation center axis of the arm, and a metal spring provided in the hole of the cushion.

As the first and second urging means, a low-cost rubber cushion and a metal spring, whose urging force hardly changes even when the temperature changes, are used, so that low cost and cold resistance can be obtained. Excellent.

As an example of the metal spring, there is a coil spring as in the second aspect of the present invention.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The feature of the present invention resides in the first and second biasing members, and the other structure is the same as that of the conventional door check device. Therefore, as a configuration other than the first and second urging members, a configuration having the same configuration as the door check device illustrated in FIGS. 4 to 6 is referred to as an embodiment of the present invention. This will be described below.

FIG. 1 is an exploded perspective view of a main part of an embodiment of the present invention, and FIG. 2 is a sectional view of FIG. In this embodiment, the first and second urging means are made of artificial or synthetic rubber, and a hole 114 in the rotation center axis direction of the arm 3.
a, 115a provided with cushions 114, 115
And metal coil springs 121 and 123 provided in these holes 114a and 115b.

The outer diameters of the metal coil springs 121 and 123 are substantially equal to the diameters of the holes 114a and 115a, and have the same length as the depth of the holes 114a and 115a in a natural state.
The operation in the present embodiment is completely the same as the operation of the door check device shown in FIGS. First, when the door is moved in the opening direction from the state where the door is closed, the case 2 moves with respect to the arm 3 with the movement in the opening direction. Thereby, the sliding contact portions 12a, 1 of the shoes 12, 13 are formed.
3a gets over the convex portion 3b of the arm 3, and the locking concave portion 3a
And the door is restrained in the half-open position.

Further, when the door is moved in the opening direction, the sliding portions 12a and 13a of the shoes 12 and 13 ride over the next convex portion 3b of the arm 3 and engage with the next locking concave portion 3a. Has reached the fully open position, and further opening is prohibited.

When the door is moved in the closing direction from the fully open position, the sliding portions 12a, 13a of the shoes 12, 13 advance over the convex portion 3b of the arm 3 in the direction opposite to the opening direction, and move to the half-open position. Through this, it returns to the fully closed position.

According to the above configuration, as the first and second urging means, the low-cost rubber cushions 114 and 1 are used.
15 and the use of the metal coil springs 121 and 123 whose biasing force hardly changes even when the temperature changes, the cost is low and the cold resistance is excellent.

Therefore, even in a cold region, the opening / closing force of the door before and after the half-open position can be made substantially the same as in a warm region. Note that the present invention is not limited to the above embodiment. In the above embodiment, the metal coil spring 12
In the natural state, the lengths of the holes 114a and 115a are substantially the same as the depths of the holes 114a and 115a. However, when the urging force of the metal coil spring is insufficient, as shown in FIG.
Holes 12a, 13a connected to the holes 114a, 115a of the cushions 114, 115 are formed in the shoes 12, 1;
Long coil spring 12 extending to the third holes 12a, 13a
By using 1 'and 123', the urging force of the coil spring can be increased.

[0026]

As described above, according to the present invention, as the first and second urging means, a low-cost rubber cushion and a metal spring whose urging force hardly changes even when the temperature changes. By using the above, it is possible to realize a door check device that is low in cost and excellent in cold resistance.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a main part according to an embodiment of the present invention.

FIG. 2 is a sectional view of FIG.

FIG. 3 is a cross-sectional view illustrating another example.

FIG. 4 is a perspective view of a conventional door check device.

FIG. 5 is a cross-sectional view taken along line AA of FIG. 4;

FIG. 6 is an exploded perspective view of a main part in FIG.

[Explanation of symbols]

 2 Case 2c Recessed bottom 3 Arm 10 Cover 10a Hole 12, 13 Shoe 114 Cushion 115 Cushion 114a, 115a hole 121, 123 Coil spring

Claims (2)

[Claims] 1. A body bracket fixed to a vehicle body, and an arm having one end rotatably attached to the body bracket, the thickness of which in the direction of a rotation center axis is changed in the longitudinal direction. An arm having a locking recess formed therein, and a bottom wall of a bottomed recess attached to the door side and provided in the center, and a hole for penetrating the arm in the bottomed recess is formed in the bottom wall. A case provided, a retaining member provided on the other end side of the arm to prevent the case from falling out of the bottomed recess, and a rotation center axis of the arm in the bottomed recess of the case. First and second shoes that are disposed so as to sandwich the arm from a direction, and that are in sliding contact with the arm and that can be engaged with and disengaged from the locking concave portion; And the second shoe First and second urging members respectively disposed in a space on the back side for urging the first and second shoes toward the arm; and covering the opening of the bottomed recess, and the bottomed recess. A cover in which a hole through which the arm is inserted is formed at a position facing the hole formed in the door, wherein the first and second urging members are arranged in the direction of the rotation center axis of the arm. A door check device, comprising: a rubber cushion provided with a hole; and a metal spring provided in the hole of the cushion. 2. The door check device according to claim 1, wherein the metal spring is a coil spring.