JP2668342B2 - Door stop holding device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door stop holding device for holding a rear door or the like of a cargo container container of a cargo truck at a predetermined opening.

[0002]

2. Description of the Related Art In a conventional door stop / hold device disclosed in Japanese Utility Model Laid-Open Publication No. Sho 63-30564, a long groove and a lock located at one end of the long groove are fixed to a regulating member fixed to the floor at the opening of the loading container. A hole is provided, and a base bent portion of the restraining arm is pivotally attached to the inner surface of the door pivotally attached to the side wall portion of the opening by a support plate so as to be movable downward, and a bent end portion of the restraining arm is engaged with the long groove of the regulating member. When the door reaches a predetermined opening, the bent end portion is fitted into the locking hole.

However, in this conventional device, when the bent end portion of the restraining arm is pulled out of the locking hole of the regulating member prior to the closing rotation of the door, the pivoting member and the peripheral surface of each bent portion of the restraining arm are provided. In order not to stop the movement by stopping the edge of the regulating member, it is necessary to grasp the appropriate position of the restraining arm with one hand or both hands and lift it so as to move horizontally so that the operability is not good.

[0004] Further, rusting of the control arm, the regulating member and the support plate is unavoidable due to the open-air use, but the increase in sliding resistance due to rusting further deteriorates the operability at the time of removal. This increase in sliding resistance prevents the stopping arm from moving down by its own weight when the door is opened, preventing the tip bent part from automatically fitting into the locking hole, and pushing down the locking arm by hand to insert it into the locking hole. Since it is necessary to fit them, the operability at the time of fitting is not good.

Further, in the conventional apparatus, the regulating member is fixed to the floor of the opening, and when the door is opened and rotated by a certain angle or more, the restraining arm comes into contact with the side pillar of the opening. To fully open the door to 180 degrees or 270 degrees for convenient loading and unloading, it is necessary to grasp the arm member and remove it once from the long groove of the regulating member. It is necessary to manually re-engage the bent portion of the stop arm with the long groove on the way, and the operability at the time of full use is not good.

[0006]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a door stop holding device which is always easy to operate both when it is used at a predetermined opening and when it is fully opened.

[0007]

The door stop holding device of the present invention will be described below with reference to the reference numerals in the accompanying drawings. A stop arm 5 whose base end is pivotally connected to a bearing plate 7 of the support plate 4 by a first pivot 6; and a hinged shaft 8 parallel to the first pivot 6 and connected to the side wall 2 of the fixed frame 1. And a lock lever 14 pivotally attached to a bearing plate 13 of the base plate 11 by a second pivot 12 parallel to the first pivot 6.

The restraining arm 5 is rotationally urged by a first spring 16 so that the bent end portion 15 contacts the inner surface 10 of the door 9, and the base plate 11 is provided with a bearing plate portion 13 on the tip side from the second pivot 12. A guide plate portion 18 is provided between the guide plate portion 18 and a stepped wall portion 17, and a first cam slope portion 19 with which the bent end portion 15 of the restraining arm 5 is in sliding contact with the front end side of the guide plate portion 18 is provided. Is a stop arm 5 on the tip side from the second pivot 12.
A second cam slope 21 is provided on the tip side of the split groove 20 with which the bent end 15 of the restraining arm 5 slides. 14 is rotationally biased so that the split groove portion 20 faces the inner surface 10 of the door 9.

[0009]

The stop arm 5 is urged by a first spring 16 to rotate clockwise about the first pivot 6 in FIG. The lock lever 14 is urged by a second spring 22 to rotate clockwise about the second pivot 12 in FIG. When the door 9 is in the closed state as shown in FIG.
Is the inner surface 1 of the door 9 at a position ahead of the base plate 11.
Pressed to zero. The lock lever 14 is the base 1
4a abuts the inner surface 10 of the door 9, and the first cam slope portion 21
Is in a standby state in which a part of the guide plate portion 18 has entered the inside of the guide plate portion 18.

When the door 9 is rotated clockwise around the hinge shaft 8 in FIG. 1, the bent portion 15 of the stop arm 5 slides on the inner surface 10 of the door 9 as the door 9 rotates. It moves toward the base plate 11 while being in contact with it, and rides on the guide plate portion 18 via the first cam slope portion 19 of the base plate 11 immediately before opening by 90 degrees. At this time, the blocking arm 5 slightly rotates counterclockwise against the bias of the first spring 16.

Since the bent end portion 15 of the stopping arm 5 moves along the guide plate portion 18 to push the second cam slope 21 of the lock lever 14, the lock lever 14 resists the urging of the second spring 22. And then retracted and rotated slightly counterclockwise,
The tip bent portion 15 is allowed to move toward the step wall surface 17.

When the door 9 is opened to 90 degrees as shown in FIG. 2, the bent portion 15 of the stop arm 5 comes into contact with the stepped wall surface 17, and the lock lever 14 is turned by the urging of the second spring 22. The tip bending portion 15 is engaged with the split groove portion 20 of the lock lever 14 by returning and rotating in the rotating direction. Since this engagement state is maintained by the rotational bias of the second spring 22, the door 9 is stopped and held at the position opened by 90 degrees.

In closing the door 9, the first spring 16
When the door 9 is strongly pushed with a force exceeding the urging force of the first spring 22, the lock lever 14 pushed by the bent end portion 15 of the stop arm 5 rotates counterclockwise in FIG. The engagement between the split groove portion 20 and the pointed bent portion 15 is released. Therefore, the bent end portion 15 of the stopping arm 5 slides along the inner surface 10 of the door 9 via the guide plate portion 18 of the lock lever 14 and the first cam slope portion 19 as the door 9 is closed and rotated. .

When it is desired to open the door 9 by 90 degrees or more, the control arm 5 is rotated counterclockwise in FIG. To open. When closing the door 9 from a state where it is opened by 90 degrees or more, the door 9 may simply be pushed in the closing direction. When it is closed to the 90 degree position, the tip bending portion 15 of the stop arm 5 is locked by the lock lever 14
However, as the door 9 continues to be closed, the lock lever 14 descends and moves to the inner surface 10 of the door 9.

In the illustrated embodiment, the first pivot 6 and the hinge shaft 8
The second pivot 12 is arranged vertically, and the door 9 is opened and closed in a horizontal plane. The bearing plate portion 7 of the support plate 4 is horizontally provided in a pair in the upper and lower sides, and the bearing plate portion 1 of the base plate 11
3 and the guide plate portion 18 are horizontally provided in a pair in the upper and lower directions. The tip bending portion 15 of the blocking arm 5 is formed in a U shape.

The first spring 16 is formed of a torsion spring, and the coil portion 16a is fitted on the first pivot 6, and the one linear end 1
6b is in contact with the support plate 4, and the other linear end 16c is in contact with the base end of the restraining arm 5. The second spring 22 is also formed of a torsion spring, the two coil portions 22a are fitted on the second pivot 12, the U-shaped intermediate straight portion 16b abuts on the lock lever 14, and the straight ends 22c on both sides are formed on the base plate. 1
It is in contact with 1.

[0017]

As described above, in the present invention, the support plate 4 is used.
The first arm 6 pivots the restraining arm 5 to the fixed frame 1, the base plate 11 and the second pivot 12 locks the lock lever 14 to the door 9, and the first spring 16 locks the restraining arm 5 to the door 9. Urging the lock lever 14 toward the base plate 11 by the second spring 22,
A guide plate portion 18 is provided on the base plate 11 via a stepped wall surface 17 between the base plate 11 and the bearing plate portion 13, and a first cam slope on which a distal end bent portion 15 of the restraining arm 5 slides on the distal end side of the guide plate portion 18. Since the lock lever 14 is provided with a split groove portion 20 to which the bent end portion 15 is engaged and disengaged, and the tip bent portion 15 is slidably contacted with the second cam slope 21 on the tip side from the split groove portion 20, Provided is a door stop holding device which is always easy to operate both when used at a predetermined opening and when fully opened.

[Brief description of the drawings]

FIG. 1 is a plan view of a door stop holding device according to an embodiment of the present invention in a door closed state.

FIG. 2 is a plan view of the door stop / hold device when the door is opened 90 degrees.

FIG. 3 is a right side view of the door stop / hold device when the door is opened 90 degrees.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fixed frame 2 Side wall of fixed frame 3 Inner surface of side wall 4 Support plate 5 Suppression arm 6 First pivot 7 Bearing plate of support plate 8 Hinge axis of door 9 Door 10 Inner surface of door 11 Base plate 12 Second pivot 13 Bearing plate portion of base plate 14 Lock lever 15 Bend portion of restricting arm 16 First spring 17 Step wall surface of base plate 18 Guide plate portion of base plate 19 First cam slope portion of base plate 20 Base plate Split groove part 21 Second cam slope part of lock lever 22 Second spring 23 Fixing hole of support plate 24 Fixing hole of base plate

Claims (1)

(57) [Claims] A support plate fixed to an inner side surface of a side wall portion of a fixed frame; and a restraining arm having a base end pivotally attached to a bearing plate portion of the support plate by a first pivot. 5 and;
A base plate 11 fixed to the inner surface 10 of the door 9 connected to the side wall 2 of the fixed frame 1 by a hinge shaft 8 parallel to the first pivot 6; and a second pivot 12 parallel to the first pivot 6 Lock lever 1 pivotally attached to bearing plate portion 13 of base plate 11
The first arm 16 urges the stop arm 5 to rotate so that the bent end portion 15 contacts the inner surface 10 of the door 9. A guide plate portion 18 via a step wall surface 17 between the portion 13 and
A first cam slope 19 is provided on the distal end side of the guide plate portion 18 with which the distal bent portion 15 of the restraining arm 5 slides, and the lock lever 14 has a distal end of the restraining arm 5 further distally than the second pivot 12. A split groove portion 20 with which the bent portion 15 is engaged and disengaged is provided, and a second cam slope portion 21 with which the tip bent portion 15 of the restraining arm 5 is in sliding contact with the tip side of the split groove portion 20 is provided. The split groove portion 20 is the inner surface 10 of the door 9.
Door stop holding device that is urged to rotate toward.