JP5732509B2 - 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 side surface of the rear door by turning the front end side toward the inner side surface of the side wall of the vehicle. On the inner side 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 an arm that allows the distal end of the arm to escape from the recess. And an arm movement restriction release member that enables re-movement. 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 side 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 contributes to an increase in manufacturing cost.
Accordingly, an object of the present invention is to provide a stopper device for a vehicle door that has a simple structure 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 includes a vertical rotation shaft 3b that is rotatably supported by the arm support bracket 2 on the base end side, and extends in the horizontal direction. The arm 3 is rotationally biased integrally with the rotary shaft 3b so that the tip side slides on the inner side surface of the side wall W of the packing box. The arm restraining member 4 is provided on the inner side surface of the side wall W of the cargo box, and when the door is at an opening angle position of 90 °, the arm restraining member 4 is engaged with the distal end portion of the arm 3 and has an engagement groove 4b that prevents its 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 releasing member 5 includes an operation shaft 7 that extends downward in the axial direction from the rotation shaft 3 b of the arm 3, and an operation handle 8 that extends from the operation shaft 7 substantially parallel to the arm 3. By rotating the operation handle 8 together with the operation shaft 7, the rotation shaft 3 b, and the arm 3 in the counter-biasing direction, the restraint of the arm 3 by the arm restraining member 4 is released.

  The door stopper device of the present invention has a simple structure 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 in 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 body 3a formed by bending a steel bar in a substantially U shape, and a rotating shaft 3b provided integrally with the arm body 3a so as to connect both ends on the base end side. The rotating shaft 3b is supported vertically by the arm support bracket 2. Between the arm support bracket 2 and the arm 3, a spring 6 for biasing rotation is interposed. Therefore, the arm 3 is horizontally rotatable around the rotation shaft 3b and is urged to rotate clockwise in FIG. 3 together with the rotation shaft 3b. As shown in FIG. 5, 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 releasing member 5 includes an operation shaft 7 that extends downward in the axial direction integrally with the rotation shaft 3b of the arm 3, and an operation handle 8 that extends substantially parallel to the arm 3 from the operation shaft 7 and bends downward. It comprises. The operation shaft 7 is rotatably supported at a lower end portion by a bracket 9 fixed to the inner side surface of the door D, and is urged to rotate clockwise in FIG. 3 together with the arm 3 by an urging spring 10.

  As shown in FIGS. 2 and 4, the bracket 9 includes a first restricting piece 9 a erected from the inner surface of the door D and a second restricting piece 9 b protruding above the operation shaft 7. The restricting piece 9a abuts the operation handle 8 to restrict the rotation angle of the operation shaft 7 in the biasing direction, and the restricting piece 9b similarly restricts the rotation angle of the operation shaft 7 in the counter-biasing direction. To do.

  Therefore, as shown in phantom lines in FIGS. 3 and 4, when the operation handle 8 is rotated in the counter-biasing direction together with the operation shaft 7, the rotation shaft 3 b and the arm 3, the tip of the arm 3 is moved. The door D can be re-rotated by escaping from the engagement groove 4 b of the arm restraining member 4.

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 urged by the urging springs 6 and 10 attached to the rotary shaft 3 b and the operation shaft 7 so that the tip is directed to the inner surface of the side wall W.

  When the door D is gradually opened from this state, the door D rotates around the 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 the door is closed again from the opened state of 90 °, if the handle 8 is grasped and rotated so as to rise, the rotating shaft 3b and the arm 3 together with the operating shaft 7 are biased by the springs 6 and 10. And the tip of the arm 3 is detached from the engaging 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 directly rotating the handle 8 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 3 Arm 3a Arm main body 3b Rotating shaft 4 Arm restraint member 4a Slope 4b Engagement groove 5 Arm restraint release member 6 Spring 7 Arm operation shaft 8 Operation handle 9 Operation shaft support bracket 9a First restriction piece 9b Second restriction piece 10 Spring A Hinge shaft D Door W Side wall of packing box

Claims (2)

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;
A vertical rotation shaft that is rotatably supported by the arm support bracket is provided at the base end side, and extends horizontally from the rotation shaft so that the front end side slides on the inner side surface of the side wall of the packing box. An arm to be energized ,
An arm restraining member provided on the inner side surface of the side wall of the cargo box, and having an engagement groove that engages with a 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;
Said arm restraining release member includes an operating shaft extending axially downward in unison with the rotation axis of the arm, after substantially extending parallel to said arm from the operation shaft, grip is bent at a right angle An operation handle that extends operably downward ,
A stopper device for a lorry door that releases the restraint of the arm by rotating the operation handle in a counter-biasing direction integrally with the operation shaft, the rotation shaft, and the arm. The operation shaft is rotatably supported by an operation shaft support bracket that is attached to the inner side surface of the door below.
2. The door stopper device for a lorry according to claim 1, wherein the operation shaft support bracket includes a handle restricting portion that stops the operation handle at a predetermined standing angle position with respect to an inner surface of the door. .

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