JPH046328Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field This invention relates to a cabin deformation prevention device for preventing deformation of the cabin in the event of a vehicle collision in an automobile in which a pipe door constructed of a pipe frame is attached to the vehicle cabin. be.

BACKGROUND OF THE INVENTION Some automobiles used for special purposes have a pipe door made of a pipe frame installed at the cabin entrance, instead of a general door.
For example, as shown in Fig. 5, pipe frames 2 and 3 are attached to the upper and lower parts of the vertical frame 1, and the rear end of the descending pipe frame 3 is raised upward and connected to the upper pipe frame 2 to form a rectangular shape. It has a frame-like structure, and the vertical frame 1 is attached to the front pillar 5 of the cabin 4 via hinges 6 and 7, and the rear end of the upper pipe frame 2 is attached to and detached from the rear pillar 9 of the cabin 4 via the lock mechanism 8. Installed as possible. 10 is a lock release device attached to the upper pipe frame 2.

Problems to be Solved by the Invention In automobiles equipped with the pipe door described above, there is no rigid member such as a door frame that can prevent longitudinal deformation of the cabin 4 in the event of a vehicle collision.
Since it is supported only by the upper pipe frame 2, the rigidity of the cabin 4 in the longitudinal direction is low, and in the event of a vehicle collision, the occupant will tend to fall forward as shown in Figure 6. The rear pillar 9 of the cabin 4 is pulled forward through the seatbelt 11 that is attached to the seat belt 11, thereby deforming the rear pillar 9.
Since the amount of deformation is greater than that of the rear pillar of an ordinary automobile that has a door frame, improvement has been desired.

Means for Solving the Problems This invention connects a pipe door, which is made up of a vertical frame and a plurality of pipe frames attached to the vertical frame to form a substantially rectangular frame, to the front pillar of the cabin of a vehicle via a hinge. In an automobile in which a cabin is installed by attaching a vertical frame to the rear pillar and removably attaching a part of the pipe frame to the rear pillar via a lock mechanism, an upper pipe frame is horizontally provided above the lock mechanism, and the upper pipe frame is installed horizontally above the lock mechanism. A front end of the pipe frame is connected to the vertical frame, a rear end is connected to the pipe door,
A receiving piece is provided near the upper pipe frame to support the flange portion of the rear pillar when the vehicle body is deformed, and the rear end surface of the upper pipe frame is opposed to the front end surface of the rear pillar.

Function This device prevents the receiving piece and the rear end of the upper pipe frame from coming into contact with the rear pillar of the cabin during normal operation, thereby preventing the opening and closing of the pipe door from becoming a hindrance, and prevents the cabin from deforming in the longitudinal direction during a head-on collision. The flange portion of the rear pillar is held by the receiving piece and the pipe frame to prevent the pipe door from shifting laterally, and the cabin is prevented from being deformed by a portion of the pipe frame and the upper pipe frame.

Embodiment FIGS. 1 and 2 are drawings showing an embodiment of the present invention, in which 15 is a cabin of a vehicle;
It is composed of a floor panel 16, a front pillar 17, a rear pillar 18, and a roof panel 19, and has an entrance 20 formed on the side. 21 is a pipe door attached to the entrance 20 of the cabin 15, which has one vertical frame 22, three pipe frames 23,
It consists of 24 and 25. The vertical frame 2
2 is a prismatic material curved along the front pillar 17. In addition, three pipe frames 23, 2
4 and 25 are arranged horizontally with an appropriate interval in the vertical direction, their tips are integrally connected to the vertical frame 22, and the rear part of the lower pipe frame 25 is bent upward to stand up, and the central part is The upper end portion is brought into contact with and integrally connected to the rear side surface of the intermediate pipe frame 24, and the upper end portion is brought into contact with and integrally connected to the lower surface of the rear end of the upper pipe frame 23, thereby forming a frame body having a desired shape. The pipe door 21 has a vertical frame 22 attached to the front pillar 17 of the cabin 15 via hinges 26 and 27, and a rear end of the intermediate pipe frame 24 detachably attached to the rear pillar 18 via a lock mechanism 28. The vertical beam portion 25a of the frame 25 and the rear end of the upper pipe frame 23 are slightly separated from the rear pillar 18 and are opposed to the end surface 18a. 29 is a lock release handle provided on the intermediate pipe frame 24.

Reference numeral 30 denotes an L-shaped receiving piece attached to the upper side surface of the vertical beam 25a of the lower pipe frame 25.
A gap 31 is formed between the rear pillar 18 and the flange 18b of the rear pillar 18.

During normal operation of the cabin 15 equipped with the pipe door 21, when a passenger gets on or off the vehicle, the passenger opens or closes the pipe door 21 by operating a lock release handle 29 provided on the intermediate pipe frame 24 of the pipe door 21.

When the cabin 15 begins to deform due to a vehicle collision, etc., the flange portion 18b of the rear pillar 18 enters the gap 31 between the receiving piece 30 of the pipe door 21 and the vertical beam 25a, as shown in FIGS. 3 and 4. Lateral displacement of the pipe door 21 is prevented, and at the same time, the end surface 18a of the rear pillar 18 comes into contact with the rear end surface of the upper pipe frame 23, and the rear pillar 18 is supported by the intermediate pipe frame 24 of the upper pipe frame 23 of the pipe door 21.
is prevented from deforming.

Effects of the invention This invention prevents the pipe door from shifting laterally by holding the flange of the rear pillar of the cabin with a receiving piece provided on the pipe door when the cabin starts deforming in the event of a head-on collision of a vehicle. Since it supports at least two places, deformation of the cabin is prevented and safety is improved.

[Brief explanation of drawings]

Fig. 1 is a side view of a cabin with a pipe door according to the present invention, Fig. 2 is a sectional view of main parts showing the relationship between the receiving piece of the pipe door and the rear pillar, Fig. 3 is a side view in operation, and Fig. 4 is in operation. FIG. 5 is a side view of a conventional cabin with a pipe door, and FIG. 6 is a side view of the conventional cabin during operation. 15...cabin, 17...front pillar,
18... Rear pillar, 18'b... Flange part,
20... Boarding/exit, 21... Pipe door, 22...
Vertical frame, 23, 24, 25... pipe frame, 26, 27... hinge, 30... receiving piece.

Claims (1)

[Scope of utility model registration request] A pipe door consisting of a vertical frame and a plurality of pipe frames attached to the vertical frame to form a substantially rectangular frame body is attached to the front pillar of the vehicle cabin via a hinge, and the pipe frame is attached to the rear pillar of the vehicle. In an automobile, a part of which is removably attached to a cabin through a locking mechanism, an upper pipe frame is provided horizontally above the locking mechanism, and the front end of the upper pipe frame is attached to the vertical frame, The rear end is connected to the pipe door, a receiving piece is provided near the upper pipe frame to support the flange portion of the rear pillar when the vehicle body is deformed, and the rear end surface of the upper pipe frame is connected to the front end surface of the rear pillar. A deformation prevention device for a cabin with pipe doors, characterized by facing each other.