JPS6112257Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a truck ceiling opening/closing device and was previously filed in U.S. Pat.
This is related to improvements to the Publication No.

The purpose is to propose a truck ceiling opening/closing device that allows the ceiling to be opened and closed extremely easily and reliably with a light force. Another object of the present invention is to propose a truck ceiling opening/closing device that has a small number of parts, is easy to manufacture, and can be provided at an extremely low cost.

Hereinafter, the present invention will be explained in detail using drawings showing a preferred embodiment.

In the figure, reference numeral 1 denotes the loading platform of the truck, and 2 designates short side plates provided on the left and right sides of the loading platform so as to be openable and closable.
On the loading platform 1, gate-shaped frames 3, 3 are erected at front and rear positions that do not interfere with the loading of luggage,
They are connected at the center by a beam 16. A bearing 5 is attached to the upper end of the gate-shaped frames 3, 3, and is pivotally connected to the arm 7 by a pin 4. A string 8 is attached to one end of the arm 7.
A roller 6 is attached to the other end by a pin 14.

Furthermore, a ceiling plate 9 is rotatably attached to the beam 16 by a shaft 15, and between the approximately central part of the ceiling plate 9 and the horizontal frame 3a of the gate-shaped frames 3, 3, the weight of the ceiling plate 9 is attached. A spring 13 with a slightly weaker pressing force is attached in a compressed state. A curtain rail 10 is installed at the outer end of the ceiling board 9.
A drainage sheet 11 is attached. A curtain 12 is attached to the curtain rail 10 so as to be slidable back and forth. Moreover, 17 is a stopper provided on the lower surface of the ceiling plate 9, and the roller 6 of the arm 7 is stopped.

The switchgear of the present invention configured as described above has the first
To open the closed ceiling panel 9 as shown in the figure, pull the opening/closing rope 8, and the arm 7 will rotate around the bearing 5 and push the roller 6 upward.
The roller 6 slides and pushes up the ceiling plate 9 until it is stopped by the stopper 17. As a result of this pushing up by the arm 7, the ceiling plate 9 is opened around the shaft 15 as shown by the imaginary line in FIG. In this case, since the weight of the ceiling plate 9 is reduced by the elastic body, for example, the spring 13, the opening can be performed with an extremely small force. Also, the roller 6 is moved to the stopper 1.
7, the arm 7 is tilted inward as shown in the figure and is in contact with the ceiling plate 9 at an angle of 90 degrees or more, so that the arm 7
The weight acts to press the arm 7 against the stopper 17. Therefore, the weight of the ceiling plate 9 stably maintains the upright state of the arm 7, that is, the open state of the ceiling plate 9. Therefore, no special operation or structure is required to maintain the open state of the ceiling plate 9, and the opening operation is extremely easy.

In addition, to close the open ceiling panel, pull the opening/closing rope 8 in the opposite direction, and the roller 6 will slide outward, and the weight of the ceiling panel 9 will push down the roller 6, so the arm 7 will use the bearing 5 as a fulcrum. The rope 8, which is rotated and attached to the end of the arm 7, is pulled upward, and at the same time, as the closing operation progresses, the pushing force of the spring 13 gradually increases, and it becomes slightly stronger than the weight of the ceiling plate 9. It descends while maintaining a weak balance, and the closing is completed when the arm 7 becomes almost horizontal.

As described above, according to the present invention, by opening and closing the ceiling, the ceiling does not get in the way and loading and unloading of cargo is facilitated. In addition, the weight of the ceiling is reduced by the use of an expandable body, and the ceiling itself is kept open and closed using its own weight.
The operation of opening and closing the ceiling becomes extremely easy, and it can be opened and closed smoothly and reliably. Furthermore, since it has a simple structure of simply supporting an arm having a roller on a gate-shaped frame and providing an extendable body, the number of parts is small, manufacturing is easy, and it can be provided at an extremely low cost.

[Brief explanation of the drawing]

FIG. 1 is a front view of a switching device according to an embodiment of the present invention, FIG. 2 is a partially enlarged front view, and FIG. 3 is a side view. 1... Truck loading platform, 2... Side plate, 3... Gate frame, 4... Pin, 5... Bearing, 6... Roller, 7... Arm, 8... Opening/closing string, 9... Ceiling plate. , 10...Rail, 11...Draining sheet, 1
2...Curtain, 13...Spring, 14...
Pin, 15...pin, 16...beam, 17...stopper.

Claims (1)

[Scope of utility model registration request] A ceiling is supported in an openable/closable manner with one end as a fulcrum at approximately the center of a frame installed in front and rear of the truck loading platform, and an operating rope is rotatably supported between near the end of the frame and the fulcrum and is attached to one end. an arm disposed at the other end that contacts the ceiling from below and pushes up the ceiling with the roller; and an arm disposed between the frame and the ceiling and required when opening the ceiling. an extendable body that reduces the force and slows down the closing operation when closing the ceiling; and an extendable body that is disposed on the lower surface of the ceiling and locks the roller when the arm pushes up the ceiling and moves the arm to a predetermined position. An opening/closing device for a truck ceiling, comprising a locking means for maintaining the ceiling at an angle, and opening and closing the ceiling by rotating the arm by operating the operating rope.