JP5732508B2 - Stopper device for a truck door - Google Patents

Description

  The present invention relates to a stopper device that regulates an opening angle of a door for opening and closing a cargo box of a truck.

Conventionally, a stopper device described in Patent Document 1 has been proposed as a stopper device that stops a rear door of a van-type vehicle capable of opening 270 ° at an opening angle position of 90 °. In this stopper device, the base end side of the arm is turnable via a bracket and is attached to the inner surface of the rear door with the front end side being turned and urged toward the inner surface of the side wall of the vehicle. On the inner surface of the side wall of the vehicle, there is an arm movement restricting member having a recess that engages with the distal end side of the arm when the door is opened 90 degrees to prevent the movement, and the arm distal end is made to escape from the recessed portion. An arm movement restriction release member that enables re-movement is provided. The arm movement restriction release member includes a change lever that extends in parallel with the door from the lower extension portion of the rotation shaft of the arm, and a downward U-shaped bent portion provided in the upper extension portion of the rotation shaft. Become. The tip depending piece of the U-shaped bent portion abuts on the inclined surface on the back side of the arm mounting bracket provided integrally with the base end of the arm.
When the door is opened, the tip of the arm slides on the inner surface of the side wall of the vehicle. When the door opens 90 °, the tip of the arm automatically engages with the engagement groove of the arm movement restricting member and is fixed. When the change lever is rotated in this state, the U-shaped bent portion is rotated via the rotation shaft, and the hanging piece pushes the inclined surface on the back side of the arm mounting bracket so that the arm is engaged with the arm movement restricting member. Rotate to disengage from the mating groove. This releases the door.

JP 2003-267053 A

In the stopper device described in Patent Document 1, the structure of the base end side of the arm and the structure of the rotating shaft of the arm are complicated, which is liable to cause a failure and increases the manufacturing cost.
Accordingly, an object of the present invention is to provide a vehicle door stopper device that has a simple structure, is robust, and contributes to a reduction in manufacturing cost.

Hereinafter, the present invention will be described with reference to the accompanying drawings, but the present invention is not limited thereto.
In order to solve the above problems, the stopper device 1 of the present invention stops a cargo box door D that can be opened by 90 ° or more from a closed position around a vertical hinge axis A at an open angle position of 90 °. The stopper device includes an arm support bracket 2, an arm 3, an arm restraint member 4, and an arm restraint release member 5. The arm support bracket 2 is attached to the inner surface of the door D. The arm 3 is rotatably supported on the arm support bracket 2 by a vertical support shaft 3c on the base end side, and extends in the horizontal direction. The arm 3 is rotationally biased so that the tip side slides on the inner surface of the side wall W of the packing box. The arm restraining member 4 is provided on the inner surface side of the side wall W of the cargo box. When the door is at an opening angle position of 90 °, the arm restraining member 4 engages with the tip of the arm 3 and has an engagement groove 4b that prevents the movement. Have. The arm restraint release member 5 rotates the arm 3 in the counter-biasing direction so that the tip end portion of the arm 3 escapes from the engagement groove 4b, thereby enabling the arm 3 to move again. The arm restraint release member 5 is pivotally supported by the lever support bracket 6 attached to the inner surface of the door D below the arm 3 and the horizontal shaft 7 at the middle portion, and has an upper end at the arm 3 and the door. A release lever 8 intervening between the inner side surface of D and a biasing member 9 for biasing the release lever 8 in rotation are provided. The release lever 8 is pivotable about a horizontal axis 7 between a normal position where the upper end side is lowered toward the inner surface of the door and the lower end side is raised and the opposite release position. Is urged to rotate. By pushing down the lower end side of the release lever toward the inner side surface of the door and rotating it to the release position, the arm is rotated in the counter-biased direction on the upper end side to cause the arm to escape from the engagement groove.

  The door stopper device of the present invention has a simple structure and is robust, and contributes to a reduction in manufacturing cost.

It is a perspective view of the stopper device concerning the present invention seen from the inside in the state where the door opened 90 degrees. It is a front view of the stopper apparatus of FIG. It is a top view of the stopper apparatus of FIG. It is IV-IV sectional drawing of FIG. It is a top view which shows operation | movement of the stopper apparatus of FIG.

Embodiments of the present invention will be described with reference to the drawings.
As shown in FIG. 5, the stopper device 1 has a cargo box door D which can be opened 90 ° or more from the closed position around a vertical hinge axis A by 90 ° (approximately 180 with respect to the side wall W of the cargo box). This device stops at the open angle position of °).

  1 to 3, the door D is at an open angle position of 90 °. The stopper device 1 includes an arm support bracket 2, an arm 3, an arm restraint member 4, and an arm restraint release member 5.

  The arm support bracket 2 is attached to the inner surface of the door D. The arm support bracket 2 includes a restriction piece 2 a that stands up from the inner surface of the door D. The regulating piece 2 a regulates the rotation angle by contacting the arm 3.

  The arm 3 includes an arm main body 3a formed by bending a steel bar into a substantially U shape, and a shaft cylinder 3b provided integrally with the arm main body 3a so as to connect both ends on the base end side. The shaft cylinder 3b is supported by the arm support bracket 2 so as to be horizontally rotatable by a vertical support shaft 3c. Between the arm support bracket 2 and the arm 3, a spring 3d for biasing rotation is interposed. Therefore, the arm 3 can rotate horizontally around the vertical support shaft 3c and is urged to rotate clockwise in FIG. 3 by the spring 3d. The rotation of the arm 3 in the urging direction is stopped at a position where the arm 3 abuts on the restriction piece 2 a of the bracket 2. The arm 3 slides on the inner surface of the side wall W of the cargo box until the door D is opened approximately 90 ° from the closed position.

  The arm restraining member 4 is fixed to the inner side surface of the side wall W of the packing box. The arm restraining member 4 has a slope 4a on which the tip of the arm 3 slides when the door D comes close to the opening angle of 90 °, and the tip of the arm 3 when the door D is at the opening angle position of approximately 90 °. And an engaging groove 4b that engages with the portion and prevents movement thereof.

  The arm restraining release member 5 rotates the arm 3 in the counter-biasing direction (counterclockwise in FIG. 3) so that the tip of the arm 3 escapes from the engagement groove 4 b of the arm restraining member 4. It is a member that enables the re-moving. The arm restraint release member 5 includes a lever support bracket 6, a release lever 8 pivotally supported by the lever support bracket 6, and a biasing spring 9 that biases the lever.

The lever support bracket 6 is attached to the inner surface of the door D below the arm 3. The release lever 8 is pivotally supported on the lever support bracket 6 by the horizontal shaft 7 at the intermediate portion, and the upper end portion intervenes between the arm 3 and the inner surface of the door D. The release lever 8 is rotatable around the horizontal axis 7 between a normal position inclined so that the upper end side is lowered toward the inner side surface of the door and the lower end side is raised, and the release position inclined in the opposite direction. The biasing spring 9 is always urged to rotate to a position.
By pushing down the lower end side of the release lever 8 toward the inner side surface of the door D and rotating it to the release position, the arm 3 is rotated in the counter-biasing direction on the upper end side, and the arm 3 is allowed to escape from the engagement groove 4a.

  The lever holder 10 is attached to the inner side surface of the door D, and holds the lower end portion of the release lever 8 so as to be rotatable up and down. An urging spring 9 is provided on the inner side of the lever holder 10, and by pushing up the lower end side of the release lever 8, the urging spring 9 is always urged to rotate to a position.

With reference to FIG. 5, the operation method of the stopper apparatus 1 is demonstrated.
When the door D is closed, the arm 3 is biased by the shaft tube 3b and the spring 3d so that the tip thereof faces the inner surface of the side wall W.

  When the door D is gradually opened from this state, the door D rotates around its hinge axis A, but the arm 3 also moves while sliding the tip on the inner surface of the side wall W. When the opening angle reaches around 90 °, the tip of the arm 3 moves while sliding on the inclined surface 4a of the arm restraining member 4, and when it reaches 90 °, the arm 3 falls into the engagement groove 4b and engages. Since it is restrained, the door D cannot be opened any more.

  When closing the door again from the 90 ° open state, if the lower end side of the release lever 8 is pushed down to the side wall W side, the upper end side of the release lever 8 rises and the arm 3 resists the biasing force of the spring 3d. The tip is pushed up to escape from the engagement groove 4b. In this state, the door D can be closed. Similarly, the door can be opened 90 ° or more.

  Since the arm 3 is configured to be released from the restraint of the arm restraining member 4 by operating the release lever 8 directly without any inclusions, the structure is simple and there are few failures. Contributes to the reduction of manufacturing costs.

DESCRIPTION OF SYMBOLS 1 Stopper device 2 Arm support bracket 2a Restriction piece 3 Arm 3a Arm main body 3b Shaft 3c Vertical support shaft 3d Spring 4 Arm restraint member 4a Slope 4b Engagement groove 5 Arm restraint release member 6 Lever support bracket 7 Horizontal support shaft 8 Release lever 9 Biasing spring 10 Lever holder A Hinge shaft D Door W Side wall of packing box

Claims (1)

A stopper device for stopping a door of a cargo box of a lorry capable of opening 90 ° or more from a closed position around a vertical hinge axis at an open angle position of 90 °,
An arm support bracket attached to the inner surface of the door;
An arm that is rotatably supported by the arm support bracket by a vertical support shaft on the base end side, and that is urged to rotate so that the distal end side slides on the inner surface of the side wall of the cargo box, extending horizontally.
An arm restraining member provided on the inner side of the side wall of the packing box, and having an engagement groove that engages with the tip of the arm and prevents its movement when the door is at an open angle position of 90 °;
An arm restraining release member that enables the arm to be re-moved by rotating the arm in a counter-biasing direction so that the tip of the arm escapes from the engagement groove;
The arm restraining release member includes a lever support bracket attached to the inner side surface of the door below the arm, and an intermediate portion pivotally supported on the lever support bracket by a horizontal axis, and an upper end portion of the arm and the inner side surface of the door. A release lever that extends vertically so as to intervene between and is rotatable around a horizontal axis between a normal position and a release position, and a lever holder attached to the inner side surface of the door on the lower end side of the release lever And
The lever holder is interposed between a holding member that holds the lower end portion of the release lever in a undulating manner and the lower end portion of the release lever and the inner side surface of the door, and pushes up the lower end portion of the release lever from the inner side surface of the door. A spring for rotating and biasing the release lever so as to push down the upper end side toward the inner surface of the door,
A floating portion that is constantly levitated from the inner side surface of the door is formed between the pivot stop portion of the release lever to the lever support bracket and the holding portion to the lever holder,
By lowering the floating part of the release lever toward the inner side of the door and rotating the release lever to the release position, the arm is rotated in the counter-biasing direction on the upper end side of the release lever to engage the arm. A stopper device for a lorry door, characterized in that it escapes from a groove.

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