JPH065490Y2 - Rear door of van type vehicle - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rear door of a van type vehicle. In particular, two doors are suspended from the upper frame behind the luggage box so that they can be folded, and the doors can be opened upward by a rope by a combination of a hydraulic cylinder and a pulley.

[0002]

2. Description of the Related Art One in which a rear door of a freight vehicle can be folded up and down is publicly known as disclosed in, for example, Japanese Utility Model Publication No. 50-18252. The folding door is opened and closed by using a wire and a spring, and a wire winder configured to wind the wire on a winding drum by the elasticity of the spring is provided below the lower door. The door is closed by pulling the handle attached to the lower door downward. With such a configuration, it requires human power to close the door and the spring force can be used to open the door, but it is necessary to install a wire winder equipped with a winding drum, which complicates the structure and makes the heavy door open. Since it is operated manually, there is a problem such as danger.
Therefore, there is a demand for an opening / closing mechanism that can be opened and closed by operating a button and has a simple structure.

[0003]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention The purpose of the present invention is to (1) fold the door so that it can be lifted upward so that it does not interfere with the loading and unloading of luggage. 2) To make it possible to use the door that has been pulled up as a canopy during cargo handling, and (3) to provide a vehicle door that can be opened and closed with a single switch.

[0004]

An upper door 6a is hinged to an upper frame 3 of a rear opening 2 of a luggage box 1, and a lower door 6b is attached to a lower end of the upper door 6a.
It has a door 6 that is hinged so that it can be folded and that is opened upward in two folded states. An opening / closing device for the door 6 is a hydraulic cylinder 9 whose base is pivotally supported by the upper frame 3. A fixed pulley 14 mounted on the mounting base side of the main body 9b of the hydraulic cylinder-9, a movable pulley 12 composed of two pulleys 12a and 12b mounted on the tip of the rod 9a of the hydraulic cylinder-9, and a hydraulic cylinder at one end. -9 is fixed to the head of the main body 9b and wound around the moving pulley 12a, the fixed pulley 14 and the moving pulley 12b, and the other end is the lower door 6b.
It is characterized in that it is fixed to the side and consists of the cord 15.

[0005]

【Example】

A preferred embodiment of the above configuration will be described below with reference to the drawings. FIG. 1 is a perspective view of a van type vehicle, and FIG. 2 is an explanatory view of an opening / closing mechanism of the present invention. 1 is a luggage box of a van type vehicle, 2 is a rear opening, and an opening is formed by an upper frame 3, a lower frame 4, and side frames 5 and 5. Reference numeral 6 is a door that is foldable in two and comprises an upper door 6a and a lower door 6b hinged to the upper frame 3, and the end of the upper door 6a is attached to the upper frame 3 by a hinge 8. 9 is a hydraulic cylinder (FIG. 2), and the base of the hydraulic cylinder 9 is the upper frame 3
The stepped portion 10 is pivotally supported by a pivot pin 11. A fixed pulley 14 is attached by a pin 11 to the attachment base of the main body 9b of the hydraulic cylinder-9. A movable pulley 12 is attached to the tip of the rod 9a. The cord 15 has one end 15
b is attached to the lower door 6b and the other end 15a is attached to the head of the cylinder-9. As shown in FIG. 3, the cord 15 is provided with the lower door 6b, the moving pulley 12a, the fixed pulley 14, the moving pulley 12b, the hydraulic pressure. It is wound around the body 9b of the cylinder.

Now, the door opening / closing device of the present invention is used to open and close along the locus shown in FIG. That is, in order to close the door 6 opened upward as shown by the solid line in FIG. 2, the rod 9a of the hydraulic cylinder 9 is contracted. Then pulley 12 (12a, 12b)
Will also retreat. Then, the fixed end 15b to the lower door 6b and the pulley 12
And the lower door 6b gradually descends while the folding angle between the upper door 6a and the lower door 6b is widened. As a result, the upper door 6a also descends downward. Conversely, when opened, the cylinder
When the rod 9a of 9 is extended, the lower door 6b is pulled up by the rope 15 via the fixed end 15b of the rope 15 to the lower door 6b of the rope 15, so that the upper door 6a hinged to this is also pulled up. .

[0007]

[Effect] As described above, according to the present invention, the door is folded up in two and pulled up, which is convenient because it does not disturb the loading and unloading of luggage. Also, since the door folded upward can be used as a canopy, it is suitable for cargo handling work in rainy weather. Further, the structure of the opening / closing mechanism is simple and the operation can be performed by a single switch operation of the hydraulic drive source, which is excellent in operability.

[Brief description of drawings]

FIG. 1 is a rear perspective view of a van-type vehicle equipped with the present invention.

FIG. 2 is a rear door opening / closing device according to the present invention.

FIG. 3 is a hydraulic cylinder in a view taken along the line III-III in FIG.
Detail view showing the relationship between the and rope.

FIG. 4 is an explanatory diagram of a door closing operation mode of a rear door.

[Explanation of symbols]

1 Packing Box 2 Rear Opening 3 Upper Frame 4 Lower Frame 5 Side Frame 6 Door 6a Upper Door 6b Lower Door 8 Hinge 9 Hydraulic Cylinder-9a Rod 10 Step 11 Pivot Pin 12 (12a, 12b) Moving Pulley 13 Shaft 14 Fixed Pulley 15 rope 15a, 15b Fixed end of rope

Claims (1)

[Scope of utility model registration request] 1. An upper door (6a) is hinged to an upper frame (3) of a rear opening (2) of a packing box (1), and two lower doors (6b) are folded at the lower end of the upper door (6a). It has a door (6) that is hinged as much as possible and that can be opened in a folded state in two, and the opening and closing device of the door (6) is a hydraulic unit whose base is pivotally supported by the upper frame (3). Fixed pulley (14) attached to the base of the cylinder (9) and the main body (9b) of the hydraulic cylinder (9), and two attached to the tip of the rod (9a) of the hydraulic cylinder (9). Moving pulley (12) consisting of pulleys (12a and 12b)
, One end is fixed to the head of the main body (9b) of the hydraulic cylinder (9), and is wound around the movable pulley (12a), the fixed pulley (14) and the movable pulley (12b), and the other end is a lower door ( Rear door of a van-type vehicle, characterized in that it comprises a rope (15) fixed to the 6b) side.